Marble, granite dry hanging construction technology

Marble, granite dry construction
1 scope
The technology standard is applicable to industrial and civil construction projects inside and outside act the role of dry hanging panel process.
This process is the use of corrosion resistance of bolts and corrosion resistance of the flexible connectors, such as marble, granite facing dry hanging stone material in the outer surface of the building structure, stone material and structure between set aside 40 ~ 50 mm cavity, its structure as shown in figure 9-7.
Made of the process finish, in under the action of wind and earthquake force allowed to produce the right amount of deflection, to absorb part of the wind and seismic force, and does not appear crack and fall off. When wind and earthquake force disappears, stone material and reset according to the structure. Compared with the traditional wet operation process, the process from the grouting process, can shorten the construction period, reduce the building self-respect, to improve the seismic performance, more important is to effectively prevent the salinity in the grouting pigment infiltration pollution of stone material, improve the quality of the decoration and visual effect. In addition, due to seasonal outdoor temperature changes caused by outside facing swell-shrink deformation, make the veneer may fall off, this technology can effectively prevent the happening of the panels off injuries. The dry pendant panel installation process also with glass curtain wall or large glass Windows, metal panels and other supporting application installation process. Now the domestic many large public buildings the stone material of inside and outside decoration panel installation project adopts the dry-hanging process has become increasingly common.
2 construction preparation
2.1 material requirements:
2.1.1 stone: according to the design requirements, determine the varieties of stone material, color, pattern and size, and strictly control, check for bending. Tensile and compressive strength, bibulous rate, such as resistance to freezing and thawing cycle performance.
2.1.2: synthetic resin adhesive used to flexible paste the stone on the back of the backing material, requirements with waterproof and aging resistance.
2.1.3 glass fiber grid cloth, stone material backing material.
2.1.4 waterproof cement: used for sealing fittings.
2.1.5 antifouling strip: used for stone edge to prevent pollution.
2.1.6 sealing paste: used for embedded fill stone seams.
2.1.7 finish coating: used for marble surface weathering, pollution prevention.
2.1.8 expansion bolts, link iron, stainless steel and iron plate, washer, nut and skeleton with fixed all sorts of design and installation of fittings you need quality, must conform to the requirements.
2.2 the main equipment:
2.1 bench drill, no tooth cutting saw, impact drill, drill, torque wrench, open end wrench, caulking gun, long special trolleys, tape measure, ruler, hammers, various shapes of steel chisel, on foot, aluminum level, meters, multi-purpose knife, scissors and jointing the valve. Galvanized iron wire, spring wire with chalk line package, ink fountain, small white line, broom, shovels, surgery, grey tank, ash bucket, tool bag, gloves and red pencil.
2.3 operation conditions:
2.3.1 check stone material quality, specification, type, quantity, mechanical properties and physical performance meets the design requirements, and surface processing work.
2.3.2 erection of double row processing frame structure at the grass-roots level, and make a good record of implicit preview, qualified rear can install process.
2.3.3 water and electricity and equipment, the reserved embedded parts has been installed on the wall. Vertical transportation tools are ready in advance.
2.3.4 outside doors and Windows has been installed, installation quality meets the requirements.
2.3.5 construction personnel for technical disclosure, should emphasize technical measures, quality requirements and finished product protection, especially the shelf dismantled, shall not impact the completed product. Large area before construction should do first sample, after quality inspection departments qualified, can organize team construction.
3 operation process
3.1 process:
Reception, : 3.2 site to designated persons responsible for the management, carefully check the specifications of the material, the model is correct, and whether the order material, found that the stone color is obviously not consistent, to be packed separately, in order to return them to factory, if there is any crack, lack of edge Angle, reoccupy after repair, serious may not be used. Also note stone yard to consolidate, pad 10 cm by 10 cm long wood, make its more than 8 cm above the ground, the wood on the best nail on rubber strip, stone by 75 ° up put leans on special steel, between each stone will be separated with plastic film by tightly packed, prevent sticking together and tilt.
To clean up the structure and surface structure on the vertical line, large Angle and two vertical wire
Site receiving - > - > horizontal position
And stone material hole and back face brush glue to stick a flexible strengthening material,

- the bottom plate bracket to the bottom plate is placed in the positioning, adjusting and fixed to infuse M20 cement mortar, temporarily

Set a drain - structure and insert the retaining bolt drilling to set fixed stainless steel pieces, filled with adhesive on the lower wall hole - >

Insert connection steel needle - the adhesive into the upper wall of hole to temporary fixed upper wall plate, under drilling and insert the bolts

With fixed pieces to set the top wall plate, stainless steel panel joint sealant to finish brush finish agent on the second floor

3.3 stone material preparation: first use colorimetric method to choose the color of the stone material classification; Installed on the same stone color below should be consistent, and according to the size and design requirements, the special die fixed on the bench drill, to cut stone. Vertical, in order to ensure accurate placement to nail a shape slab brackets, make the stone on the bracket, to punch surface with vertical drill bits, make the hole forming accuracy, hole deeply 20 mm, the aperture is 5 mm, bit is 4.5 mm. Then brush unsaturated resin adhesive on the back of the stone material, mainly adopts a cloth two glue, cloth as non-alkali fiberglass cloth, untwisted 24 purpose, SLATE before brush glue again, to write the number on the SLATE, and the floating dust and noise pollution on the SLATE clean, such as saws, iron rust is cut off, get rid of it with the steel wire brush, coarse sand paper brush glue again and glue to increases with the increasing use, prevent wasteful after curing. Pay attention to the marginal place must brush is good, especially the punching parts is a weak area, must brush that cloth covered, brush head through the gum, when the shop is stuck glass fiber grid cloth from side out flat with the brush again and again, play two glue again after paving, brush touch glue not too much, to prevent the flow to the small stone material surface, bring sealing difficulties, occurrence quality problem.
3.4 basic preparation: clean it facing the structure of the stone surface, at the same time hanging straight, set square, find rules, pop-up vertical line and horizontal line. And according to the design drawings and the actual need to pop up the location of the installation of stone line and line of the block.
Hang line 3.5: according to the requirements of design drawings, stone material to play the big Angle with theodolite in advance before installation on the surface of the two vertical line and the best play in the position of the large Angle of 20 cm, in order to check the accuracy of the vertical line at any time, to ensure smooth installation. Appropriate USES vertical hanging line from 1.0 ~ 1.2 of steel wire is good, under heavy iron with height, average below 40 m high heavy iron for 8 ~ 10 kg weight, the upper hanging on a dedicated line Angle steel shelves, Angle steel frame with bolts at the top of the building of large Angle, must hang in solid, accurate, not easy to touch, and pay attention to the protection and check regularly. And make mark in the upper and lower control line.
3.6 the bottom panels bracket: the processed in advance on the bracket according to the main line above the bottom slab of the to be installed. Bracket to support strong, good to connect with each other, also can and rack together, stent after ok, along the direction of bracket, PuTong long 50 mm thick wooden board flowing in the same horizontal plane, to ensure that the stone on the following in the same horizontal plane.
3.7 cut holes in the RC retaining structure, the expansion bolt: play the structure surface is horizontal, according to the design drawings and stone material hole position, accurate plays on the wall retaining structure and the tag, and then press punch, punch can use percussion drill, phi 12.5 drill bit, on when drilling with sharp chisel in advance to play a good point a point, and then use drill holes, hole deep in the 60 ~ 80 mm, if encounter in the structure of steel, can be holes in horizontal direction or raise up, to connect iron using adjustable cushion and back again. Pore forming requirements and structure surface vertical, into the hole after hole ash powder with a small hook scoop out, put bolts, this layer should be required for all bolts in place.
3.8 connected iron: for the stainless steel bolt design Angle steel peace. Adjust the position of the flat steel plate made of flat steel plate for coincided with SLATE insertion hole, fixed flat steel plate, with a torque wrench screw.
3.9 bottom slab installation: connect the side of iron is ok, you can put the bottom panel on a corner in place. Method is to use the fixture fixed temporarily, slab side hole apply glue first, adjust the iron, fixed steel needle, fixed adjustments panel. In order to install the bottom panel, bottom panel, after all is in place to check whether the board level in a line, such as rough to adjust; Low wedge cushion flat available; High can appropriate exit point chock, gently flowing back to panel on a level; Adjust panel of horizontal and vertical degree, first check plate seam, plate seam width should be according to the requirements of design, uniform plate seam, will be liner joints embedded tight, sealing height more than 25 cm. By use of 1:2.5 prepared with white cement mortar, fill in the bottom panel 20 cm high, mortar on the surface of the drain.
3.10 apply glue and plug connection steel slab on hole: 1:1.5 white cement into the epoxy resin curing agent, promoter, with a small stick together, with a stick with good glue into the hole, then connect long 40 mm phi 4 steel insert until the panel hole on the plate, the steel needle check it before any scars, length whether meet the requirements, to ensure that the vertical steel before installation.
Fixed: adjust 3.11 after temporarily fixed panel, adjust the levelness, such as panel fluently, can be connected under the bottom end of the mouth of the flat steel plate on a corresponding double stranded wire MATS, if the copper wire, can use small hammer smashed, if high, can put the other end of the mouth with the above method mat. Adjust the vertical degree, and adjust the panel perceptible gap away from the wall of the stainless steel fittings, vertical until the panel.
Plate installation: 3.12 at the top of the panel at the top of the last level, except in accordance with the requirements of general stone installation, to install in the cracks of the structure and the slab hanging a length of 20 mm thick batten, batten on the flat for slab on top of the 250 mm, lifting point can be connected in iron, galvanized iron wire can be used wood, wood crane, namely in the slab and the space between the wall plug put polystyrene board, polystyrene is slightly wide strip in space, in order to fill, prevent leak slurry grouting, honeycomb, holes, etc., caused by grouting to 20 mm slab under the mouth for the use of coping cover plate.
Article 3.13 stick anti-fouling, sealing: along the panel edge article anti-fouling, should choose 4 cm tape adhesive tape, the edge must be tightly stick together, stick, gaps between marble slabs embedded elastic back liner, back liner can also be used 8 mm thick high even foamed sheet cut into article 10 mm wide, backing a good embedded within 5 mm, decorate a face after the final article in backing the external use neutral silicone into the seam caulking gun, glue the strength should be both, when go to gun steady and slow. Such as rubber surface is not smooth, can use stainless steel small spoon, leveling with small spoon to use clean, embed the underlying flagstones, be careful not to block water pipe. According to the stone color can be a suitable amount of mineral pigments are added into the adhesive.
3.14 clean up the surface of marble, granite, brush finish agent: article of marble, granite surface antifouling torn off, with cotton silk SLATE rub-up, if you have any glue or other adhesive strong sundry, available operation gently wipe out, wipe with cotton silk with acetone to clean. Before brush finish agent construction, we should master and know the weather trend, rainy and windy day 4 class above shall not be construction, to prevent pollution of the film; In winter and the rainy season in the shelter condition good indoor operation, brush on the plate. According to the mixture ratio in half an hour before the brush finish agent for good, pay attention to the difference between primers and paint, the best operation in stages. Cover a finishing agent to stir, to prevent the film
When inequality. Brush besmear to brush to use 3 in wool, stained with paint shoulds not be too much, to prevent the flow, less as far as possible back to brush, in order to avoid a brush marks, no bubble, no leakage brush, brush smooth glossy.
3.15 can be reference in the process of metal panels installation of fixed matrix method, for marble, granite panels, such as dry hanging technology on the structure of the connection method of construction, especially the indoor dry pendant panel installation process.
4 quality standards
4.1 ensure projects:
4.4.1 facing the variety of stone plate, anti-corrosion, specifications, shapes, flatness, geometric size, finish, color and design must comply with the design requirements, product certification.
4.1.2 surface and basement should be installed firmly; Dry hanging paste materials, accessories and the state must comply with the design requirements of the standard rules, carbon steel fittings to do anti-rust, anti-corrosion treatment.
4.2 the basic items:
2 surface level off, clean; Correct spelling a flower, texture clear, smooth, uniform color; Less than a full plate parts arrangement is appropriate, Yin and Yang Angle plate pressure to the right.
4.2.2 seam evenly, plate seam smooth, seam filling embedded close-grained, width is consistent, without fault dislocation.
Holdings protrusions around the board to take the whole board set of cutting, size accurate, consistent edges and a smooth, dado, stick risks such as flowing straight.
4.2.4 drip line straight, water slope to correct, clear and beautiful.
4.3 allowable deviation projects, see table 9-31.
Tile decorative surface allowable deviation table 9-31
Will project allow deviation (mm) check method
Smooth rough stone

Facade vertical indoor 2 2 in 2 m line board and foot inspection
Vertical elevation outdoor 2 4 in 2 m line board and foot inspection
Surface is flat and level 1 2 in 2 m line board and feeler check
3 Yang Angle founder 2, 3, 20 cm square chi and feeler check
Seam straight 2, 3, 4, 5 m string cable and rod inspection
5 dado flat top of 2, 3, 5 m string cable and rod inspection
6 seam height 0.3 1 short feet with steel plates and feeler check
7 joint width 0.3 1 quantity to check with your ruler

5 finished product protection
5.1 to clear in time clean residue on the door window frame, glass and metal veneer of dirt, such as sealant, fingerprints, dust, water and other sundry, appropriate paste the protective film, prevent pollution and corrosion.
5.2 earnestly implement reasonable construction sequence, a type of work (water, electricity, ventilation, equipment installation, etc.) work should be done in the previous, prevent damage, contamination plugins stone veneer.
5.3 it on the shelves and way, it is strictly prohibited collision dry hanging stone veneer.
5.4 after finishing the live outside, easy damaged parts of the edges and corners to nail bead protection, the other type of work operation shall not be cut finish and chipped stone.
5.5 outside brush finish agent before drying, it is strictly prohibited under the waste residue and shelf scaffold board and so on.
5.6 completed the plugins stone should set modes, in case of any act endangering the finished product, should immediately stop, and serious processing.
6 should pay attention to quality problems
6.1 exterior trim panel surface color differ: the main is the poor quality of stone material, the construction without trial and careful to choose.
6.2 line Angle seam is not straight, not divide evenly, straight: main is not seriously before construction according to the drawing size, check the structure construction, the actual size and segmented block play line is not fine, don't stay straight and alignment calibration checks do not often wait for a reason.
6.3 sealing glue, not fine: this have very close relationship with leakage and beautiful, especially pay attention to the surrounding, outside the window is at the mouth of the facade of concave and convex change node, two different materials, expansion joints, water slope and window sill and overhangs and metope, etc. Operators must carefully adhere to someone checked first with no one to check the same, second managers need to one step a footprint to each frame have to be careful to check after the completion of acceptance.
6.4 dirty metope, bosseyed glue mark: the main reason is various, one is the operation process, namely the installation method and technology of the bottom-up directly bring certain difficulty to the finished product protection, the greater the more senior the difficulty; Second, the operator must increases with the increasing in qing brush good habit; Three is to strengthen the management and education work product protection; Four is completed before the top-down thorough qing brush.
7 quality records
This technology standard should have the following quality records:
7.1 marble, granite, fasteners, fittings, etc. The factory certificate.
7.2 part project quality inspection evaluation table.
7.3 resistance to wind pressure and water spray test report, etc.

Integrated wiring system installation process

Integrated wiring system installation 

1 scope 

The technology standard is applicable to buildings Ding Cheng building automation control with integrated wiring system installation. 

2 construction preparation 

2.1 material requirements: 

2.1.1, programming cable and cable specifications, form should comply with the design rules and the provisions of the purchase and sale contract. Cable attached logo, label content should be complete, clear. Cable outer sheath should be intact, the cable should be attached to the factory quality inspection certificates, and shall be accompanied by the batch cable performance test report (note: the content of the cable marker: on cable sheath around at lm intervals indicate the factory name or symbol and cable specifications, also indicate the production date if necessary. Label content: cable specifications, factory name or logo, year of manufacture, cable length). 

2.1.2 steel pipe (or wire tube) specifications, shall comply with the design requirements, uniform wall thickness, uniform weld, without fracturing, sand holes, edge and shallow concave phenomenon. Apart from the galvanized pipe pipe to be cleaning brush anti-corrosion paint in advance (cast-in-situ concrete in steel pipe apply, don't brush anti-corrosion paint, but should be rust removal). Galvanized pipe or painted anticorrosive paint of steel tube appearance complete without peeling phenomenon, and the product certificate. 

2.1.3 pipe using cement pipe piece, should be in line with the ministry of posts and telecommunications communication pipeline engineering technical specification for construction and acceptance of rules (YDJ39 90). 

2.1.4 metal trough and its accessories: finalize the design product through galvanized processing should be adopted. The specifications should comply with the design requirements. Slot should be smooth level off, both inside and outside edges, should not be distorted, become warped edge, such as deformation phenomenon, and shall have the manufacturer's certificate. 

2.1.5 various galvanized iron surface treatment and coating should be uniform, the surface is bright and clean, no fall off, the defects such as bubbles. 

2.1.6 connectors: all kinds of jumpers, wiring row, information socket, such as optical fiber socket type specification, quantity should comply with the design requirements, the transmitting and receiving sign clearly, and shall have the manufacturer's certificate. 

2.1.7 wiring equipment, cable transfer equipment specifications should comply with the design requirements, the optical cable equipment arrangement and the label should be consistent with the design. Unified label, mark position correctly and clearly. And shall have the product certification and related technical documents. 

2.1.8 cable tray, metal bridge model specification and quantity should comply with the design requirements, the metal bridge damage of galvanized layer should not have falls off phenomenon, bridge should level off, smooth, no edge, no distortion, become warped edge, iron losses deformation phenomenon, and shall have the manufacturer's certificate. 

2.1.9 various modules equipment specifications, quantity, should comply with the design requirements, and shall have the manufacturer's certificate. 

2.1.10 transfer boxes, wiring box model specification and quantity should comply with the design requirements, and shall have the manufacturer's certificate. 

2.1.11 plastic trough and its accessories specifications should comply with the design requirements, and choose corresponding to finalize the design product. Its installation site of the ambient temperature shall not be less than 15 ℃, the flame retardant properties of oxygen index should not be less than 27%. Slot inside and outside should be smooth and shuttleless thorn, there should be no distortion, become warped edge, such as deformation phenomenon, and the product certificate. 

2.2 the main tools and test equipment: 

2.2.1 stewed pig, hydraulic simmer pig, hydraulic pressure, pressure case, diamond core set of silk machine, set of machine. 

2.2.2 hammer and chisel, hacksaw, flat file, round file, adjustable wrench, tail clamp. 

2.2.3 pencils, tape measure, spirit level, line drop ash shovel, ash bucket, kettle, oil drum, painting, chalk line bag, etc. 

2.2.4 hand electric drill, bench drill, drill, nail gun, pull riveting gun, tool bag, toolbox, high stool, etc. 

2.2.5 testing instrument and equipment, multimeter, shaking table, the optical time domain reflectometer, noise tester, field strength tester, bridge, network analyzer, etc. 

2.3 operation conditions; 

2.3.1 in structure engineering obligate geosyncline, tube, the position of the hole size, quantity, shall comply with the design rules. 

2.3.2 transition between asked, equipment, workspace, civil engineering have been completed. House decoration project completed, ground, metope smooth, bright and clean, the height and width of the door should not impede the handling of equipment and devices, door locks and keys is complete. 

2.3.3 devices laid floor, the plate laid tightly solid, and horizontal deviation should not be allowed greater than 2 mm per square meter, the floor pillar is firm, floor anti-static measures of grounding should conform to the requirements of the design and product specifications. 

2.3.4 handover, equipment rooms provide reliable construction power supply and grounding device. 

2.3.5 transition area between rooms, equipment, environment temperature, humidity, shall comply with the design requirements and related regulations. 

2.3.6 delivery, equipment should comply with the fire safety requirements, reserved holes to take fire prevention measures, indoor stacked without danger, the fire equipment is complete. 

3 operation process 

3.1 process: 

Equipment inspection to pipe laying, box steady note to equipment installation and cable laying, cable terminals installed - > 

 

Completed system debugging and verification 

 

3.2 equipment inspection: 

3.2.1 before construction appearance inspection should be made for the equipment used to check the type, quantity, logo, label, product certification, product technical documents, related equipment of the electrical properties, mechanical properties, functions and the relevant special requirements, should comply with the regulations of design. 

3.2.2 cable electrical performance sampling test, should comply with the regulations of products factory inspection requirements and related specifications. 

3.2.3 fiber characteristics test should comply with the regulations of products factory inspection requirements and related specifications. Note: the specific requirements for equipment inspection, please see the building and building integrated wiring systems engineering construction and acceptance standard CECS89:97 relevant part. 

3.3 piping installation: 

3.3.1 metal tube or dark flame retardant rigid (PVC) plastic tubing installation requirements: 

3.3.1.1 piping appropriate USES metal or flame retardant rigid (PVC) plastic pipe, embedded in the middle of the wall of the dark tube diameter should not be more than 50 mm, the floor of the dark tube straight for 15 to 25 mm. Straight line stringing 30 m pull box and junction box should be set up. 

3.3.1.2 dark piping turning Angle should be greater than 90 °, on the path of each drainage tubes of not more than two turning Angle, should be not S bending. When bending tube intervals of 15 m, dark pull box and junction box should be set up. 

3.3.1.3 turn dark pipe bending radius should not less than 6 times of the pipe diameter, such as dark tube diameter greater than 50 mm, should not be less than l0 times. 

3.3.1.4 metal and hard plastic pipe concrete construction technology of flame retardant, please according to the relevant section of the construction. 

3.3.2 rainfall distribution on 10-12 dark metal trough the ground installation requirements: 

3.3.2.1 embedded trough in the building, according to their size is different, according to a layer, or layer 2 set, should be at least more than two root embedded, slot section height should not be more than 25 mm. 

3.3.2.2 trough directly buried length more than 6 m or online slot route intersection, turn, appropriate is set to pull box, so that the cloth cable and maintenance. 

3.3.2.3 drop-down box should be able to open and flush with the ground, lifted the lid of waterproof measures should be taken. 

3.3.2.4 trough appropriate USES tube is introduced in the junction box. Embedded metal trough as shown in figure 3-85. On the ground metal trough installation process, please construction according to the requirements of relevant chapters. 

3.3.3 lattice form dark under floor installation of tents and groove requirements: 

3.3.3.1 shape trough on the groove form shown in figure 3-86, please see. 

3.3.3.2 groove shape and trough must communicate. 

3.3.3.3 groove plate can be opened, and with the ground, cover board and waterproof measures should be taken to the information socket outlet. 

3.3.3.4 groove width should be less than 600 mm. 

3.3.4 bridge installation requirements: 

3.3.4.1 bridge run level, hanging (a) spacing generally 1.5 m ~ 3 m, when the vertical installation on the building structure body with the spacing should be less than 2 m. 

3.3.4.2 bridge and the installation position of the tank shall meet the design requirements, the left and right deviation shall not be more than 50 mm. 

3.3.4.3 bridge and levelness slot per meter deviation shall not be more than 2 m m. 

3.3.4.4 vertical bridge and slot should be vertical with the ground, and no tilt phenomenon, verticality deviation shall not be more than 3 m m. 

3.3.4.5 two horizontal windage, joining together should not be more than 2 mm. 

3.3.4.6 crane (a) an installation should be kept vertical flat, neat rows, fixed firmly, no askew phenomenon. 

3.3.4.7 metal bridge and slot section and internode should contact good installation is firm. 

3.3.4.8 metal bridge construction technology for installation please construction according to the requirements of relevant chapters. 

3.3.5 metal trough installation or flame retardant plastic slot equipped on installation construction technology, construction according to the requirements of relevant section, please. 

3.4 box, box steady note requirements: 

3.4.1 track information socket installation: 

3.4.1.1 installed on the floor or ground, should be fixed in the junction box, socket panel such as vertical and horizontal form, junction box cover can be opened, and should be tight waterproof, dustproof. Junction box cover surface should be flush with the ground. 

3.4.1.2 installed on the wall, should be 300 mm above the ground, such as the ground USES floor board of activities, should be combined with floor in clear height size. 

3.4.1.3 information socket base fixed method to the construction site conditions, appropriate USES expansion screws, nail and so on. 

3.4.1.4 fixed screws to tighten, should not have loose phenomenon. 

3.4.1.5 information socket should have a label, with color, graphics, text indicates that terminal equipment type. 

3.4.1.6 installation position should meet the design requirements. 

3.4.2 box or wiring specialization and dark in the wall inside, reserve a hole in the wall installation, higher than that of the bottom ground appropriate for 500 ~ 1000 mm. 

3.5 installation: 

3.5.1 track of rack installation requirements: 

3.5.1.1 frame after the installation, horizontal and vertical degree should comply with the regulations of manufacturers. If not specified manufacturer, verticality deviation should not be greater than 3 mm. 

3.5.1.2 various parts of the racks shall not fall off or damaged. Paint if there is any loss should be fill paint, complete clear signs. 

3.5.1.3 rack installation should be strong, should be in accordance with the requirements for reinforcement design of shock. 

3.5.1.4 rack panels, frame before installation should leave 1.5 m space, frame on the back of the distance from the wall should be greater than 0.8 m, in order to facilitate installation and construction. 

3.5.1.5 wall-mounted machine box bottom is apart from the ground appropriate for 300 ~ 800 mm. 

3.5.2 wiring equipment rack installation requirements: 

3.5.2.1 way down the line, the bottom of the rack position should correspond to cable line hole. 

3.5.2.2 each array vertical tilt error should not be greater than 3 mm, base level error should not be greater than 2 mm per square metre. 

3.5.2.3 terminal signs should be complete. 

3.5.3 all kinds of connection module installation requirements: 

3.5.3.1 module should be intact, equipment installation in place, mark is complete. 

3.5.3.2 mounting screws should be solid, panels should keep in a horizontal plane. 

3.5.4 grounding requirements: 

Rack installation, wiring equipment and metal pipe, groove, the earthing body, protective earthing conductor cross section, the color should comply with the design requirements, and maintain a good electrical connection, the pressure it is firm and reliable. 

3.6 cable laying. 

3.6.1 cable laying general shall meet the following requirements: 

3.6.1.1 wire cloth before you check the specifications, programming and routing and location and design requirements. 

3.6.1.2 wire cloth should be straight, can not produce twisting, looped wait for a phenomenon, should not by external extrusion and damage. 

3.6.1.3 cable ends should be labeled before wash cloth, indicating the start and end position, label writing should be clear, correct and accurate. 

3.6.1.4 power cable, signal cable, twisted-pair cable, optical cable and other weak current system of cables should be separated buildings cloth. The minimum clear distance between cable should meet the design requirements. 

3.6.1.5 wire cloth should be redundant. Between transition, reserved for cable length between equipment, general for 3 ~ 6 m; The workspace is 0.3 ~ 0.3 m; Length of cable on the equipment side reserved generally for 5 ~ 10 m; Have special requirements should be reserved length according to design requirements. 

3.6.1.6 bending radius of cable shall meet the following requirements: 

A non blocking 4 on bending radius of cable should be at least 4 times of cable diameter, in construction process should be at least 8 times. 

B shielded twisted-pair cable bending radius should be at least 6 ~ 10 times of the cable diameter. 

C the trunk bending radius of cable should be at least 10 times of cable diameter. 

D bending radius of cable should be at least as cable diameter l. 5 times, in construction process should be at least 20 times. 

3.6.1.7 wire cloth, in the process of traction, hanging cable fulcrum distance should not be more than 1.5 m apart. 

3.6.1.8 cloth cable traction, should be less than 80% of the tension of cable to allow, for cable instantaneous maximum traction should not exceed the tension of cable to allow. In the drawing method of laying cable, main traction should add on the strengthening of cable core. 

3.6.1.9 wire cloth to avoid stress and distortion in the process, shall be made for the qualified traction end. If use mechanical traction, should according to the length of the cable traction, cloth environment, factors such as tension of traction concentrated or dispersed traction, etc. 

3.6.1.10 cloth fiber optic cable, fiber optic cable tray rotation should synchronize with fiber cloth, fiber optic cable traction speed of the average of 15 m/s. The radian of cable acquired place should stay relaxed, and leave the buffer cushion, and unfavorable and overmuch, avoid cable back button. 

3.6.1.11 twisted-pair cable and power cable of minimum interval should comply with the regulations of table 3-50, and the other line of minimum interval should comply with the regulations of table 3-51. 

3.6.1.12 with other optical cable laying pipeline of minimum interval should comply with the provisions of the table 3-52. 

 

3.6.2 embedded trough and dark pipe laying cable shall meet the following requirements: 

3.6.2.1 ends of laying pipe should be sign, said out of the room number, serial number and length. 

3.6.2.2 pipe should be no block, nozzle should be no burr, and drawing lines or arrows. 

3.6.2.3 laying drainage tubes using straight steel tube or flame retardant rigid (PVC) plastic pipe. Cloth double sheath cable and main cable, the utilization rate of pipe diameter of straight pipe should be 50% ~ 60%, the bent pipe is 40% ~ 50%, drainage tubes cloth 4 renew for cable, the utilization rate of cross section of pipeline should be 25% ~ 30%. Embedded trough appropriate USES metal trough, trough section utilization ratio should not exceed 40%. 

3.6.2.4 cable and cable, with the pipe should be preset in the dark tube plastic tube, the cable is located in the tube, make the fiber optic cable and cable separate cloth, son pipe inside diameter should be 1.5 times of cable diameter. 

3.6.3 set up cable tray and trough laying cable shall meet the following requirements: 

3.6.3.1 cable bridge straight above 2.2 m above ground, top of the bridge from the ceiling or other obstacles should not be less than 300 mm. Bridge width should not be less than 100 mm, inside the bridge cross sectional fill rates should not exceed 50%. 

3.6.3.2 cable tray cable inside the vertical run, at the top of the cable and intervals of 1.5 m, should be fixed on the bridge of the stent, run level, the linear part of the distance in 3 ~ 5 m place have fixed point. In the distance of the cable head end, tail end, turning center of 300 ~ 500 mm in fixed point set. 

3.6.3.3 cable trough the ground 2.2 m higher than that of straight. Set in the ceiling, tank lid open side should be kept vertical clearance of 80 mm, utilization rate of slot section should not be more than 50%. 

3.6.3.4 cloth trough cable can not tie, cable groove should be straight, try not to cross, line slot of cable should not be excessive, in the outlet and inlet line of cable trough, corner should be bound and fixed. Vertical line slot cloth cable should be at intervals of 1.5 m on the cable bracket. 

3.6.3.5 in horizontal and vertical laying cable bridge and vertical line groove, the response to the cable tie. 4 for cable in 24 root for beam, 25 or more trunk twisted-pair cable, optical cable and other cable letter should be according to the type of cable, cable diameter, cable tie beam some points. Tie spacing should not be more than 1.5 m, buckle spacing should be homogeneous, elastic moderate. 

3.6.4 radar echoes captured within the ceiling cable laying, fire prevention should be considered for cable laying should be separately set hanger, can not wash cloth on the ceiling suspension, should be placed on the wire slot wiring. Cable sheath should be flame retardant, selection of cable section should comply with the design requirements. 

3.6.5 in shaft adopts Ming piping, laying cable bridge, metal trough etc way, and relative clauses should comply with the above requirements. Surrounding the shaft in the floor hole should be set up to 50 mm waterproof, the hole plugging with fireproof materials sealed. 

3.6.6 complex subsystem adopts overhead pipeline, directly buried, wall piping (tank) or dark piping (slot) cable, optical cable laying construction technical requirements should be reference of posts and telecommunications telephone lines in engineering technical specification for construction and acceptance, the telecommunication network optical fiber digital transmission system interim technical regulations on engineering construction and acceptance of the relevant provisions. 

3.7 cable terminal installation: 

The general requirements of 3.7.1 cable terminal: 

3.7.1.1 cable in the terminal, it is necessary to check the label color and digital means, and terminal in sequence. 

3.7.1.2 cable shall not produce coupling phenomenon in the middle. 

3.7.1.3 cable terminals must be firm card, contact, good. 

3.7.1.4 cable terminal installation manual and the manufacturer should comply with the design requirements. 

3.7.1.5 twisted-pair cable connected to the splice piece should look for the line number, line color code, shall not be reversed and wrong answer. 

3.7.2 twisted-pair cable core terminal shall meet the following requirements: 

3.7.2.1 terminal, each on the winding should be kept twisting as far as possible, not a twisting length for 5 class line should not be greater than 13 mm; Four kinds of line is not more than 25 mm. 

3.7.2.2 stripped jacket shall scrape insulation, should use special tool strip. 

3.7.2.3 wire pair in the information socket (RJ45) are linked together, must according to the color code and line for clamping sequence. Socket type, the color label and serial number should comply with the regulations of figure 3-87. 

3.7.2.4 twisted-pair cable and RJ45 socket information card terminal connection, should press after nearly far first, after the first on the order card. 

3.7.2.5 twisted-pair cables and wiring module (IDC, RJ45) card, it should be stipulated in the design and manufacturer. 

3.7.2.6 shielded twisted-pair cable shielding layer contact with reliable connector terminal shields, cable shielding layer should be in contact with the 368 circular connector shields, contact length should not be less than 100 mm. 

3.7.3 cable conductor terminal shall meet the following requirements: 

3.7.3.1 using optical fiber connection box of cable core, protection, optical connection box can be fixed and drawer two kind of way. In the connection box, optical fiber bending radius should be able to get enough. 

3.7.3.2 fiber melt or mechanical joint should be protected and fixed, the use of connectors for fiber optic jumper. 

Should sign 3.7.3.3 connection box panel. 

3.7.3.4 jump line soft the activities of the fiber connector should be clean before insert adapter, plug location comply with the design requirements. 

3.7.3.5 fiber connection loss value, should comply with the provisions of the table 3-53. 

Loss of fiber connection table 3-53 

Optical fiber connection loss (dB) 

Multimode single mode optical fiber category 

Average maximum average maximum 

Pick up 0.15 0.30 0.15 0.30 

Machinery in 0.15 0.30 0.20 0.30 

 

3.7.4 of all kinds of jump line into a client: 

3.7.4.1 jump cable wire and contact between the plug-in should be good, wiring is correct, complete logo. Choose jumper wire type should conform to the requirements of the system design. 

3.7.4.2 jump line length should comply with the design requirements, the general cable should not be more than 5 m, cable should be not more than 10 m. 

3.8 integrated wiring system debugging: 

3.8.1 integrated wiring systems engineering system debugging, including cables, information electric outlet and connect line module test. The test should be detailed records, as part of the completion data. About the electrical performance test record format as shown in table 3-54. 

Integrated wiring systems engineering electrical performance test record table 3-54 

Should the record within 

The serial number, electric cable system cable system 

Address, cables, wiring diagram attenuation device number length near end crosstalk attenuation reflection shielded cable shielding layer connectivity 

 

 

 

The test date 

The tester 

Instrument model 

Processing conditions 

 

3.8.2 electrical performance test instrumentation accuracy should reach the requirements given in table 3-55. 

The minimum required performance tester precision table table 3-55 

Performance parameters of the serial number 1 ~ 100 megahertz (MHz) 

1 random noise lowest 65 ~ 15 log dB note 1 (f / 100) 

2 remaining near end crosstalk (NEXT) 55 ~ 15 log dB note 1 (f / 100) 

3 equilibrium output signal 37 ~ 15 log dB note 1 (f / 100) 

Four common mode rejection 37 ~ 15 log dB note 1 (f / 100) 

5 dynamic accuracy + / - 0.75 dB note 1.2. 

6 length accuracy + / - 1 m + / - 4% 

15 db 7 return loss 

Note: 1. F frequency in the table, the unit for MHz. The calculated value in the table below 75 db, 1, 2, can not measure; In less than 60 db, 3, 4, 5 items can not measure. 

In the table 2. In item 5, db from 0 to 10 db near end crosstalk limit is superior to the value to 60 db. 

 

3.8.3 instrument should be able to test 3, 4, 5 class twisted-pair cable. 

3.8.4 test instrument for an information socket electrical performance test time should be between 20 and 50 s. 

3.8.5 instrument should be output port to all test data storage, and output to the computer and printer maintenance management at any time. 

3.8.6 cable, optical cable should be subject to measurement instrument department check, after having obtained the certificate of approval, and shall be used in engineering. 

3.8.7 debugging procedure is as follows: 

By data terminals, voice terminal to check, information on export, horizontal cable, floor distribution frame, the main distribution frame, vertical cable, computer room, telephone switching machine room, after a thorough check, confirmed before debugging pair then debugging system one by one, each subsystem after the commissioning test conform to the rules permit, then system integrated debugging, after testing the transmission rate and other technical parameters conform to the rules, can be delivered. 

3.9 comprehensive wiring system project completion acceptance of the project and content are shown in table 3-56. 

Comprehensive wiring system project acceptance and the content of table 3-56 

Stage project acceptance inspection for acceptance within the way 

Before a, construction check 1. Environmental requirements: (1) the civil construction floor, walls, doors, power socket and grounding device; 

(2) the civil process: computer room area, reserved holes; 

(3) construction of the power supply; 

(4) the floor installation 

 

Before the construction check 

 

 

 

2. The equipment inspection (1) the appearance inspection; 

(2) specification, type, quantity, 

(3) cable electrical performance sampling test; 

(4) fiber characteristics test 

3. Safety, fire prevention requirements (1) the fire fighting equipment; 

(2) the danger of stacking; 

(3) the reserved hole fire prevention measures 

Before the construction check 

 

Second, the installation of equipment 

1. The device frame (1) specification, programming, appearance; 

(2) vertical installation, levelness, 

(3) paint shall not fall off, complete sign complete; 

(4) all kinds of screws must be tightened; 

(5) shock reinforcement measures; 

(6) grounding measures 

 

2. The information socket (1) specification, location, quality; 

(2) all kinds of screws must be tightened; 

(3) mark is complete; 

(4) installed in accordance with process requirements; 

(5) shielding layer and reliable connection 

 

Along with the work inspection 

 

Three, electricity, cable cloth (building) 1. The cable tray installed and groove (1) location correct; 

(2) installed in accordance with process requirements; 

(3) the ground 

Along with the work inspection 

 

 

2. Wire cloth (1) cable specifications, routing, location. 

(2) comply with the requirement of cloth cable technology 

 

Continue table 

Stage project acceptance inspection for acceptance within the way 

Four, electricity, cable cloth (floor) 1. The overhead cables (1) the messenger wire sizes, erect position, furnish specifications; 

(2) the messenger wire sag; 

(3) the cable specifications. 

(4) card, hang interval; 

(5) the introduction of the cables conform to the requirements of the process 

 

Along with the work inspection 

 

 

2. The cable pipe (1) using pipe distributed; 

(2) the cable specifications. 

(3) cable to. 

(4) the arrangement of cable protection quality concealed work visa 

3. The buried cables (1) the cable specifications. 

(2) the installation location, depth; 

(3) the arrangement of cable protection for quality. 

(4) back to the soil compaction quality concealed work visa 

4. Along with the cable (1) the cable specifications. 

(2) installation location, route; 

(3) the soil construction conform to the requirements of the process 

Concealed work visa 

 

5. (1) other lines of communication with other facilities spacing; 

(2) into the line installation, construction quality concealed work visa 

Five, the cable terminal 1. Information socket conform to the requirements of the process 

2. The wiring module meet the technological requirement 

3. The fiber socket conform to the requirements of the process with the inspection 

4. All kinds of jump line conform to the requirements of the process 

Sixth, the system test 1. Engineering electrical performance test (1) the connection diagram; 

(2) length; 

(3) attenuation; 

(4) near end crosstalk; 

(5) special provisions in the design of test content 

 

Tests on completion 

 

 

2. Optical properties test (1) type (single mode or multimode); 

(2) attenuation; 

(3) the reflection 

Tests on completion 

 

3. The tests on completion grounding system meet the design requirements 

Seven, project total acceptance 1. Completion technical document count, transfer of technical documents; 

2. Evaluating engineering quality acceptance of work, the results of acceptance tests on completion 

Note: 1. The floor in cable laying in embedded, and the acceptance of the drainage tubes for concealed work visa. 

2. The content of the system test of the acceptance test can be in with the work. 

 

4 quality standards 

4.1 ensure projects: 

4.4.1 integrated wiring equipment used by devices, box, box cables, connecting hardware installation should comply with the corresponding product manufacturer and relevant national norms. 

4.1.2 lightning protection, earthing resistance value should meet the design requirements, equipment metal shell and components, cable shielding grounding line section, colour should comply with the rules; Ground connection conductor should be solid and reliable. 

4.1.3 integrated wiring system of the launch of interference wave field strength limit requirements shall comply with the relevant EN55022 and CSPR22 standard regulations. 

4.1.4 integrated wiring system should be able to meet the design of data transfer rate and voice system, standard system, such as the design requirements and specification requirements. 

Test method: observe the inspection test inspection or the use of instruments and equipment. 

4.2 the basic items: 

2 integrated wiring system, transition, cable pipeline, metal trough, a variety of devices, information socket installation should comply with the regulations of design requirements and norms. Rational layout, neat rows, cable connection correct, firm pressure. 

4.2.2 connection hardware comply with the design requirements, mark and the color code clear, performance marks set right. 

Electrical holdings and protective, grounding, resistance to electromagnetic interference, anti-static, fire prevention, gas, environmental protection should comply with the rules. 

Methods: to observe the inspection test inspection or the use of instruments and equipment. 

4.3 allowable deviation projects: 

4.3.1 integrated wiring system link attenuation of maximum limit, include at the ends of the connecting cable connection hardware, jump line and working area, should comply with the provisions of the table 3-57. 

Link attenuation of the biggest limit table table 3-57 

Frequency ratio is the most big attenuation limit (dB) 

Levels (MHz) A B C D 

Note: after each point line, the curve of the test should be within the scope of the limits of the standard curve in all. 

 

4.3.2 integrated wiring system between any two lines of the proximal crosstalk attenuation limit, including at the ends of the connection hardware, jumper and workspace connection cable, including (but not including equipment connector), should comply with the regulations of table 3-58. 

4.3.3 any cable in the integrated wiring system interface reflection attenuation limit, should comply with the provisions of the table 3-59. 

4.3.4 integrated wiring system link with proximal crosstalk decay ratio (ACR), shall comply with the provisions of table 3-60. 

Line between the lowest proximal crosstalk attenuation limit table table 3-58 

Proximal crosstalk attenuation limit lowest frequency rates (dB) 

Levels (MHz) A B C D 

  

All other sound source of the noise should be less than full application of the crosstalk noise frequency 10 db. 

In large logarithmic main cable, the worst line right proximal alto attenuation value, should be measured in accumulative frequency power. 

Cable bridge bifurcation or more combinations, and connect to multiple information socket cable, either symmetrical cable group or unit between the proximal crosstalk attenuation than a single combination of at least 4 of the proximal crosstalk attenuation of the cable well Δ a number. 

Δ = 6 dB + 10 lg (n + 1) dB 

Type: n number of sets of symmetrical cable for china-africa fiber optic cable. 

The cable outlet minimum reflection attenuation limit table table 3-59 

Minimum frequency rate attenuation threshold 

Levels (MHz) C D 

1 f 10 18 18 or less or less 

10 < f 16 or less 15 15 

16 < 20 or less 15 f 

20 f 100 or less 10 or less 

The minimum value of ACR table table 3-60 

Frequency rate 

Minimum value of ACR (dB) frequency rate minimum value of ACR (dB) 

(MHz) D D (MHz) 

2. 

ACR (dB) = the aN (dB) - a (dB) 

Type in the aN - between any two lines of the proximal crosstalk attenuation values; 

A - link transmission attenuation values. 

ACR values listed on this form is better than the calculated value, between the attenuation and crosstalk attenuation is allowed limits weigh the choice, the choice range such as table 3-61. 

Attenuation and selection of proximal crosstalk attenuation limit table table 3-61 

Frequency rate 

(MHz) maximum attenuation 

(100 m) dB/minimum proximal crosstalk attenuation 

At 100 m (dB) 

Twenty eight 41 

31.25 10.3 39 

62.5 15 to 33 

100 19 29 

 

4.3.5 integrated wiring system of hierarchical and transmission distance limit shall satisfy the requirements of table 3-62: 

Rating system and transmission distance limit table table 3-62 

System highest preach twisted-pair cable transmission distance (m) optical cable transmission distance (m) application, for example 

Grade 100 Ω lose frequency 

Three kinds of 100 Ω 

4.3.6 line of integrated wiring system of dc loop resistance limit, when the system classification and transmission distance under the condition of the given in table 3-62, shall comply with the provisions of the 3-63. 

Dc loop resistance limit table table 3-63 

Link level grade A grade B C D level 

The largest loop resistance (Ω) 560 170 40 40 

Note: 100 Ω dc loop resistance of cable should be 19.2 Ω / 100 m; 

150 Ω dc loop resistance of cable should be 12 Ω / 100 m. 

 

4.3.7 propagation delay limit line of integrated wiring system, should comply with the provisions of the table 3-64. 

The maximum propagation delay limit table table 3-64 

Level measurement frequency (MHz) don't delay late (mu s) 

0.1 A 20 

1 B 5 

10 C 1 

30 D 1 

Note: the wiring (horizontal) subsystem of the maximum propagation delay shall not exceed 1 mu s. 

 

4.3.8 integrated wiring system of longitudinal differential conversion value of attenuation (balance), which shall comply with the rules of table 3-65: 

Longitudinal differential attenuation limit table conversion table 3-65 

Minimum longitudinal differential attenuation limit transformation frequency rate (dB) 

Levels (MHz) A B C D 

0.1 30 to 45 35 to 40 

1.0 20 30 to 40 

4.0 to be determined to be determined 

10.0 25 to 30 

16.0 to be determined to be determined 

20.0 to be determined to be determined 

100 backlog 

Note: longitudinal base test methods of converting attenuation are studying. 

 

V4.3.9 integrated wiring system, various parameters of the optical wavelength window, should comply with the provisions of the table 3-66: 

Cable 4.3.10 integrated wiring system, under the conditions of various parameters in table 3-66, fiber optic link to allow maximum transmission distance, should comply with the provisions of the table 3-67. 

Multimode optical fiber link 4.3.11 integrated wiring system bandwidth optical mode, shall comply with the rules of table 3-68. 

4.3.12 integrated wiring system, fiber optic link any value of the optical attenuation of the interface, which shall comply with the rules of table 3-69. 

4.3.13 integrated wiring system of cables and equipment should be paid attention to the mutual connection between impedance matching and transformation adaptation of balance and imbalance. The classification of the characteristic impedance should comply with the 100 Ω, 150 Ω two kinds of standards, the allowable deviation value is + 15 Ω (> 1 MHZ) is suitable for the frequency. 

Optical wavelength window parameter table table 3-66 

Optical fiber mode, the nominal wavelength 

Lower limit (nm) 

Upper limit (nm) 

Wavelength (nm) benchmark test 

FWHM (nm) maximum spectral width 

(nm) 

Multimode 850, 790, 910, 850 to 50 

Multimode 1300 1285 1330 1300 1285 

1310, 1288, 1339, 1310 10 single mode 

1550, 1525, 1575, 1550 10 single mode 

Note: 1. The multimode optical fiber: core mu m nominal diameter is 62.5/125 or 50/125 microns; 

When 850 nm wavelength maximum attenuation of 3.5 dB/km; Bandwidth is 200 MHZKM minimum mode 

When the 1300 - nm wavelength maximum attenuation for 1 db/km; Minimum mode bandwidth of 500 MHZKM; 

2. The single mode fiber: core pile should meet IEC793-2, type BI and ITU - T G. 652 standard; 

When 1310 nm and 1550 nm wavelength maximum attenuation ldB/km; The cutoff wavelength should be less than 1280 nm. 1310 nm dispersion should be 6 ps/km · nm or less; 1550 nm dispersion should be 20 or less ps/km, nm. 

3. The fiber connection hardware: maximum 0.5 dB attenuation; The minimum reflection attenuation: 20 db multimode, single-mode 26 db. 

 

Fiber optic link allows maximum transmission distance table table 3-67 

Link length of multimode attenuation value (dB) single mode attenuation value (dB) 

Cable application category (m), 850 (1300 nm) (nm) 1310 (1550 nm) (mm) 

Wiring (horizontal) subsystem 100 2.5 2.2 2.2 2.2 

Main subsystem 500 3.9 2.6 2.7 3.9 (vertical) 

Complex subsystem 1500 7.4 3.6 3.6 7.4 

Note: 1. The link length, specified in the table is in the use of fiber optic cable and optical fiber connection hardware conditions, the maximum allowable range. 

2. For short applications, should be into the optical attenuator, ensure the attenuation values specified in the table. 

 

Multimode fiber optical mode bandwidth of a link table table 3-68 

Nominal wavelength (nm) minimum bandwidth optical model (MHz) 

850, 100, 

1300, 250, 

Note: the model of single mode optical fiber link bandwidth, to ISO/iec11801and: 1995 (E) has not been made. 

 

The optical fiber link attenuation limit table table 3-69 

Optical fiber mode, the nominal wavelength 

(nm) minimum reflection attenuation threshold 

(dB) optical fiber mode, the nominal wavelength 

(nm) minimum reflection attenuation threshold 

(dB) 

Multimode 20 single-mode 1310 26 850 

Multimode 20 single-mode 1550 26 1300 

 

 

5 finished product protection 

5.1 the installation such as integrated wiring system equipment and cables, is allowed to damage buildings, and pay attention to maintain the cleanliness of the wall. 

5.2 set up within the ceiling of the cable, pipe installation, etc., should not damage the keel and ceiling. 

Live 5.3 solder paste, the equipment and devices must not be soiled surface, ground trough, information socket should guard against water damage or parts. 

5.4 using high stool or carry objects, is allowed to damage or collision walls and doors and Windows, etc. 

6 should pay attention to quality problems 

6.1 the pipe or ground slot blocking or into the water, affect the wiring, dredge pipe trough, water pollution is eliminated in the wiring. 

6.2 information socket is damaged, poor contact, check the repair. 

6.3 cable length is long, the signal attenuation is serious, according to the drawings for inspection, cable length should comply with the design requirements, adjust the signal frequency, the attenuation conform to the requirement of design and specification. 

6.4 the optical fiber connector polarity, no output signal, adjust the optical fiber connector polarity correctly. 

6.5 have signal interference, check to eliminate interference sources, check whether the cable shielding wire is ground, trough the wire whether side by side and clapboard shielding, cable and optical fiber cable is isolation processing, indoor anti-static floor is a good grounding, etc. 

6.6 cable transmission system transmission attenuation, ceramic or plastic head connector, the attenuation value of each connection point is greater than the specified value. 

6.7 optical fiber digital transmission system of digital series bit rate does not conform to the stipulations of the specification, check whether the digital interface is conform to the requirement of design. 

6.8 equipment wrong wiring between subsystems, cause control equipment can not work normally, check the color code according to the drawings correct wiring. 

6.9 caused dangerous lightning overvoltage and overcurrent integrated wiring effect or damage to the equipment components, etc., should choose the gas discharge tube protector for over-voltage protection, over-current protection can direct use the complex protector, prevent lightning must adopt overvoltage and overcurrent protector at the same time. 

7 quality records 

7.1 equipment, components, cables, connectors, all kinds of jumpers, wiring row, information socket, fiber socket products such as certificate of production, product technical documents shall be complete. 

7.2 integrated wiring system pipe trough, cable laying and other installation engineering, installation engineering, implicit check visa, self-inspection, mutual inspection records. 

7.3 design change, regarding the records, equipment list, as built drawings. 

7.4 piping and pipe threading component project quality inspection records. 

7.5 trough board wiring subentry engineering quality inspection evaluation form (with metal trough installation should fill in the table). 

7.6 the lightning rod (net) and grounding device component project quality inspection evaluation form (for grounding device equipped when fill in this form). 

7.7 overhead line and rod breakdown electric equipment installation engineering quality inspection evaluation form (with overhead line installation project when fill in this form). 

7.8 cable line component project quality inspection evaluation form (with cable laying project fill in the table). 

7.9 integrated wiring system along with the acceptance record system debugging operation. 

7.10 integrated wiring systems engineering electrical performance test records, such as system adopt computer design, management, maintenance and monitoring program and user data on the list of files should be provided, and disk, instructions and other documents. 

7.11 integrated wiring systems engineering completion technical data in triplicate to the construction unit. 

Cast-in-site frame structure concrete pouring construction technology

Cast-in-situ concrete pouring construction framework structure
1 scope
The technology standard is applicable to general cast-in-site frame and frame shear wall concrete casting engineering.
2 construction preparation
2.1 material and main equipments:
2.1.1 cement: more than 325 slag Portland cement and ordinary Portland cement. Comes into play must have a certificate of quality and second-round exam test report.
2.1.2 sand: appropriate USES coarse sand and medium sand. Below C30 concrete, silt content is not more than 5%, higher than the C30, no greater than 3%.
2.1.3 stones: the particle size of 0.5 ~ 3.2 cm, below C30 concrete, silt content is not more than 2%, higher than the C30, no greater than 1%.
2.1.4 admixture, fly ash, its content should be determined by test, and shall comply with relevant standards.
2.1.5 concrete additive, water reducing agent and early strength agent shall comply with the provisions of the relevant standards, its content after test meet the requirements, shall be used.
2.1.6 main machines: apply to concrete mixer, the scale (or automatic measuring equipment), two-wheeled cart, small dumper, sharp spade, shovel, concrete skip, internal vibrator, long wood float, float, iron ruler, rubber hoses, iron plate, string of barrel, tower crane, etc.
2.2 operation conditions.
2.2.1 template, reinforced concrete layer, embedded parts and pipeline installation, all tests comply with the design requirements, and completed implicit, preview procedures.
2.2.2 pouring concrete frame and. Have pitched, and upon passing the inspection.
2.2.3 cement, sand, stone and admixture on inspection conform to the requirements of the relevant standards, such as concrete of the laboratory has issued notice.
2.2.4 the scale (or automatic feeding system) approved by check, accurate measurement vibrator (rod) upon passing the examination test run.
2.2.5 master according to the construction scheme of operating team has to conduct a comprehensive technical clarificaiton, concrete pouring application has been approved.
3 operation process
3.1 technological process;
Homework to prepare to apply to concrete mixer, concrete and transport

Column, beam, plate, shear walls, the stairs and concrete pouring and vibrating curing

3.2 job preparation: before pouring the waste within the template, dirt and other debris and reinforcement on smeary clean, and check whether the reinforced cement mortar pad pad. Such as using the template and wet wood template should be watered. Pillars of the template again after removing debris and water cleaning mouth should be closed. Scissors walls of loose concrete has the clean shave.
Concrete mixing 3.3:
3.3.1 according to the mixture ratio to determine the dosage of every plate of various materials and vehicle weight, respectively fixed cement, sand and stone the standard scale. In the car when weighing, often should determine aggregate moisture content, timely adjustment of proportion of water consumption, water added to ensure accurate.
3.3.2 rainfall distribution on 10-12 charging order: general pour the stone, cement, reload the sand. If you want to add admixture of fly ash, should join along with cement. For mineral admixtures (water reducing agent, leveling agent, etc.), the powder should be according to the rehearsals for the amount of each dish is put into a small bag inside it is advisable to (plastic bags), available with thickness of aggregate to join at the same time; Liquid should be per disk usage in blender mixing with water at the same time.
3.3.3 stirring time: in order to make the concrete mix, since all played a concrete mix into the mixing drum began to discharge, the shortest time, concrete mixing can be used as stipulated in the table 4-34.

Concrete mixing in the shortest time (s) table 4-34
Mixer out shoes (L)
< 250 > 250 ~ 500, 500
Since the fall, 90, 120, 150
Forced to 60, 90, 120
Since the fall, 90, 90, 120
Forced 60 60, 90

3.3.4 concrete began to stir, head of technical department by construction unit, foreman organize relevant personnel to acquired the slump and workability of concrete and so on carries on the appraisal, check whether conform to the requirements of the mixing proportion notice, adjusted the qualified before formal stirring.
Transportation: concrete since blender discharge, should be timely sent to the pouring location. In the process of transportation, to prevent segregation, the slurry erosion, slump change and produce the phenomenon such as initial setting. As to concrete pouring location have segregation phenomenon, should be carried out before casting secondary mixing.

Concrete after discharge from the mixer to the duration of the casting, should not be more than the provisions of table 4-35.
Concrete from the mixer discharge to pouring over time (min) table 4-35
Air temperature (℃)
Less than 25 above 25
< C30, 120, 90
< C30 90 60
Note: use a rapid hardening cement mixed with admixture or mixing concrete, shall be determined according to the test.

Must ensure that when the concrete pump pumping concrete continuous work, in the event of failure, idle time more than 45 min or concrete appear segregation phenomenon, should immediately flush the tube with pressure water or other method of residual concrete.
3.5 concrete pouring and vibrating of general requirements:
3.5.1 track of the concrete pour free from skip mouth falling height shall not be more than 2 m, measures must be taken when casting such as more than 3 m, with a string of chute barrel or etc.
3.5.2 concrete should be segmented, layered continuous casting layer height should be determined according to the structural characteristics, reinforcement density, are generally vibrator part length of l. 25 times, most less than 50 cm.
Internal vibrator used 3.5.3 should fast slow pull, point to homogeneous permutation, point by point, order, shall not be missed, do even vibrated. Mobile spacing is not greater than 1.5 times that of the vibrating action radius (generally is 30 ~ 40 cm). Should be inserted into the lower vibration on a layer of 5 cm, to eliminate the seam between the two layers. Surface vibrator (or plate vibrator) mobile spacing, should guarantee the vibrator plate cover has the edge of the vibrating part.
3.5.4 concrete should be continuous. If must be intermittent, the intermittent time should be shortened as far as possible, and before the concrete sets should be in the top layer, the first layer of concrete pouring is completed. Maximum intermittent time should be used according to the varieties of cement, determine the condensation temperature and concrete conditions, generally more than 2 h shall be in accordance with the construction joint treatment.
2.6.2 template should be often observed when pouring concrete, steel bar, reserved holes and embedded parts and steel dowel for mobile, deformation or congestion, found that the problem should be dealt with immediately, and shall be revised in before have been pouring concrete condensation in good condition.
3.6 column concrete pouring:
3.6.1 track at the bottom of the column before pouring should fill out with same concrete mix proportion with 5 ~ 10 cm thick cut stone mortar, column should be layered vibrating of concrete, thickness of each layer when using internal vibrator is not more than 50 cm, vibrating rod may not touch the steel bar and embedded parts. In addition to the above vibrating, the next thing to someone banging on the template at any time.
3.6.2 column within 3 m high, can be directly under the pillars gray casting, more than 3 m, the measures should be taken to (with a string of barrels) or in open doors hole on the side of the template installation inclined chute poured subsection. An altitude of no more than 2 m each and every template closed the doors after concrete pouring hole sealed, strapped tightly with straps.
3.6.3 concrete pillars shall be a casting finished, if you want to leave should be in below the main girder construction joints. Girderless floor should stay under the cap. With the beam slab casting is whole, should be in the column after the pouring down l ~ 1.5 h, give its preliminary heavy fact, continue casting.
3.6.4 radar echoes captured after pouring, shall, from time to time, will flow out lap steel finishing.
Beam, slab concrete pouring 3.7:
3.7.1 beam and plate should be at the same time casting, casting method should begin with "cast slurry method" by the end, the first casting beams, according to the high beam stratified pouring into step, when reached the bottom of the plate position again with concrete slab casting, with the constant extension step, beam and slab concrete pouring continuous forward.
3.7.2 and plate into the overall height is greater than lm beam, allow separate casting, the construction joints shall be out of the board at the end of the following 2 ~ 3 cm. Cast, the pouring and vibrating must work closely, the first layer of blanking slowly, after fully vibrated beam bottom layer material, use "cast slurry method" keep mud water along the bottom of the beam package stones to move forward, each layer shall be vibrated before blanking, the bottom of the beam and beam help site must pay attention to the vibrating and vibrating shall not touch the steel bar and embedded parts.
3.7.3 beam-column joints steel bar is dense, pouring the concrete time with small particle size of gravel with strength grade of concrete pouring, vibrating rod vibration with small diameter.
3.7.4 casting slab concrete virtual height should be slightly bigger than the thickness of vibrating back and forth with the vibrator vertical casting direction, thick plate available internal vibrator tora in the casting direction vibration, and the iron ruler check the thickness of the concrete, vibrating finished with long wood float screeding. Construction joints or there are embedded parts and steel dowel with wood float leveling. Are not allowed to use when casting slab concrete vibrating rod PuTan concrete.
3.7.5 construction joint position; Appropriate direction along the second beam casting slab, construction joints should be retained in the middle of the second beam span a third range. Surface should be without construction joints or board face perpendicular to the beam axis, shall not be left oblique if. Construction joints should be fastened with wood or steel wire net.
3.7.6 construction joints must stay has been pouring concrete compressive strength is not less than 1.2 MPa, is allowed to continue pouring. Before continue pouring concrete, construction joints of concrete surface should be cut hair, remove the floating stones, and water is rinsed clean, after first sprinkle a layer of cement slurry, and then continue pouring concrete, should be careful operation vibrated, the old and new concrete.
3.8 the concrete shear walls are:
3.8.1 such as column, wall of concrete strength grade, at the same time can also pouring, whereas appropriate column before pouring concrete, anchoring reinforcement embedded shear wall, after being open mould, then tie steel shear wall, the mould, pouring concrete.
Before 3.8.2 concrete shear walls are uniform in the bottom pouring 5 cm thick and wall body composition is the same cement mortar, concrete with shovel into the die, not be used hopper directly into the mould.
3.8.3 casting wall concrete should be continuous, interval time should not be more than 2 h, control the thickness of each layer of casting 60 cm, must therefore be arranged in advance under the concrete material point location and number of vibrator operator.
3.8.4 vibrating rod mobile spacing should be less than 50 cm, each point of the duration of vibration in surface laitance for degrees, to enable the lower level of concrete combined into a whole, 5 cm should be inserted into the lower concrete vibrator. Note when vibrating reinforced dense and the hole positions, to prevent leakage. Must be in the hole on both sides of the vibrating at the same time, not grey height will be broadly. Big mouth of the hole bottom template should speak, and casting vibration starts here.
3.8.5 concrete wall casting, to a flowing out of steel and arrange them, use wood trowel according to concrete leveling elevation lines to the wall surface.
The stairs concrete pouring 3.9:
3.9.1 stair section concrete pouring from bottom to top, vibrated slab concrete first, achieve step position and then concrete is poured together with concrete steps, constantly pushing up continuously, and ready to use wood trowel (or plastic float) will step on the surface smooth.
: the seam position 3.9.2 stair concrete appropriate continuous casting the stairways, construction joints shall be retained in the period of a third part of the stairs.
3.10 maintenance: after the concrete pouring, should cover within 12 h and watering, watering frequency should be able to maintain enough wetting state, concrete curing period is generally not less than seven days and nights.
3.11 winter construction:
3.11.1 winter casting of negative temperature concrete mixed with compound admixture, should according to different temperature conditions, the negative temperature using different admixtures. And before use must through the special test and technical appraisal about the unit. Column, wall maintenance appropriate USES curing spirit.
3.11.2 winter winter construction plan should be established before construction, heating for raw materials, mixing, transportation, pouring and curing of computation, and should be on the basis of the construction.
3.11.3 before pouring concrete, should clear the snow and ice on the template and reinforced, dirt. Transport and pouring concrete containers should have heat preservation measures.
3.11.4 transport casting process, the temperature should be consistent with the thermal calculation of certain data, such as discrepancy, measures should be taken to adjust. Before using heat curing, concrete curing temperature shall not be less than 2 ℃.
3.11.5 monolithic structure heat curing, casting process and construction joint position, should be able to prevent larger temperature stress, such as heating temperature 40 ℃, solicit opinions from the design units should be determined after. Ascending and descending temperature shall not exceed the standard concrete rules.
3.11.6 winter construction in the - 5 ℃, average temperature, average construction by adopting the composite heat storage method, the early strength type antifreezing admixture used should be the factory that are subject to laboratory test blocks, and contrast test before formal use. Comprehensive heat storage method appropriate chooses more than 425 R ordinary Portland cement or type of early strength cement. Admixtures should choose can significantly improve the early strength, and can reduce the strength of the antifreeze critical powder composite admixture, and aggregate to join at the same time, ensure uniform mixing.
3.11.7: curing winter template and insulation, cooling to 5 ℃ should be in the concrete rear can dismantle. Concrete temperature difference with the outside world is greater than 15 ℃, the concrete surface after ripping, should be temporarily override, make its slow cooling.
3.11.8 concrete block in addition to the normal number of sets of rules making, should also add two groups with structure of condition maintenance, a group in order to test the strength of the concrete seas before, another group to the strength of the inspection to room temperature curing 28 d.
3.11.9 winter construction process, should fill in "concrete engineering construction records" and "winter concrete construction journal".
4 quality standards
4.1 ensure projects:
4.4.1 concrete used in cement, water, aggregate, admixtures and must conform to the specifications and the relevant provisions of inspection factory certificate or test report is in line with the quality requirements.
4.1.2 the mixing proportion of concrete, metering, mixing of raw materials and maintenance and construction joint treatment, must comply with the rules and regulations of construction.
4.1.3 the strength of concrete block sampling, production, maintenance and testing in accordance with the concrete strength inspection evaluation standard (GBJ107-87).
4.1.4 design does not allow fracture structure, it is strictly prohibited cracks, design allows fracture structure, the crack width must comply with the design requirements.
4.2 the basic items: concrete should be vibrating compaction; Honeycomb, holes, can not have, such as cracks, slag inclusion defects.
4.3 allowable deviation projects, see table 4-36.
5 finished product protection
5.1 to ensure the accurate location of the reinforcing steel bar and block, can not hit the floor, staircase curved bar, don't touch the embedded parts and steel dowel.
5.2 don't clog pound template, not on the crane girder or stair step template help stamped on, should be built for the springboard, protection template solid and tight.
5.3 the stair step 3 has casting slab, stair step on the surface of concrete to protect, must be in the strength of concrete is 1.2 MP. After the party must operate in surface and installation of the structure with stents and templates.
Concrete cast-in-situ framework allowing deviation table 4-36
Allowable deviation (mm)
Monolayer multilayer high-level framework
1 the axis displacement 8 5 'quantity check
High layer + 10 + / - 5
All high plus or minus 30 plus or minus 30
3 column, wall and beam section size + 8-5 + 5 'quantity check
Each layer of 5 5
5 the perpendicularity of the column, wall overall height H / 1000
And no more than 20 H / 1000
And not more than 30
In 2 m by 5 surface roughness 8 8 feet and wedge feeler check
Embed steel centerline offset 10 10 6
7 embedded pipe, the reserved hole centerline offset May 5
8 embedded bolt centerline offset May 5
9 the reserved hole center location deviation 15 15
Wellbore length, width
The center line of + 25
- 0 + 25
0
H / 1000
And no more than 30 H / 1000
And not more than 30
Note: column H, high walls.

Winter construction in 5.4 has poured on the template of cover, on the scaffolding operation in the shop, try not to step footprints.
6 should pay attention to quality problems
Honeycomb 6.1: a blanking is too thick, the reason is that concrete vibrating false or leakage, there is crack template slurry erosion, steel bar is dense and concrete slump through small pebbles or big, column, there is crack template, so that poured out of the bottom of the mortar and concrete.
6.2 exposure: the reason is reinforced cushion block displacement, spacing is too large, leakage and reinforced against templates, exposure, or the bottom of the beam and plate vibration false, also possible exposure.
Pits: 6.3 to early to dismantle or template brush surface leakage isolation agent or template wet enough, component surface concrete cause pitting surface peeling easy adhesion in the template.
6.4 holes: dense part reason is reinforced concrete was stuck, without the upper vibrating keep pouring concrete.
6.5 gap and slag layer: the construction joint of cleaning not net or not watering the bottom slurry, easy to cause cracks, slag layer.
6.6 beam and column joint section size deviation is too large, the main reason is that template column joint stiffness poor or branch of the template was not seriously the control section size.
6.7 cast-in-place floor and stair step on surface roughness deviation is too big, the main reason is that after the concrete pouring, the surface don't float carefully erased. Winter construction in covering the insulation layer, here early or plate.
7 quality records
This technology standard should have the following quality records:
7.1 cement factory quality certificate and second-round exam report to approach.
7.2 stone test report.
7.3 test report.
7.4 admixture factory quality certificate and test report approach.
7.5 additive factory quality certification and try in jun reports, product specifications.
7.6 concrete test record.
7.7 notice of proportion of concrete construction.
7.8 concrete block strength test report.
7.9 concrete strength statistical evaluation form.
7.10 item of concrete engineering quality inspection.
7.11 concrete construction log (including winter construction records).