Glass curtain wall installation
1 scope
The technology standard is applicable to civil construction site packaged exposed frame glass curtain wall installation (i.e. main bearing skeleton is perpendicular to the vertical keel and level to the time of the keel, frame inner glass embedded in the tectonic pattern).
The manufacturer of glass curtain wall is more, GeChang node structure and installation method, there exist certain differences when installation should be careful about the workmanship and quality standard. This technology standard only describes one approach.
2 construction preparation
Glass curtain wall develops very fast in recent years, it has unique artistic effect, not only should consider when designing architectural shape and structure of various performance requirements, such as mechanical (strength, stiffness and stability), waterproof, thermal insulation, air, fire, earthquake and lightning protection, such as performance, the performance and use function and security of person all have close relations, and Beijing is built appoint regulations issued by the ministry of construction for this: who is engaged in the glass curtain wall design, production, installation of the enterprise, must pass through the city is built appoint after qualification examination, can carry on the processing production and installation. Before construction, therefore, to the design, production, installation of the first unit of qualification examination.
2.1 material and main equipments:
2.1.1 aluminum profile: should be surface anodic oxidation treatment. The variety of aluminum, level, specifications, color, cross section shape, surface anodic oxidation film thickness, etc., must comply with the design requirements, the alloy composition and mechanical properties shall be the manufacturer's certificate, and shall comply with the current relevant national standards. Enter the site to conduct a visual inspection; To flat gauge, pollution-free, pits, pits, scratches, surface defects such as warp, specification, type and points respectively in indoor wood square pattern mat.
2.1.2 glass: the appearance quality and optical performance should be consistent with the current national standard.
2.1.2 to according to the structural classification:
A. the single-layer glass: float plate glass or tempered glass (general 6 mm or 8 mm thickness).
B. double insulating glass: the thickness is 6 + 12 + 6 (mm) or 9 + 8 + 8 (mm), middle value was not flowing air layer between two layers of glass.
2.1.2.2 classified by function:
A. endothermic glass: add trace amounts of metal chlorides in transparent glass, form with color glass, its characteristic is to make visible through and through calorie restriction in with infrared ray.
B. the mirror glass: one side or both sides is in single or double glass are plated metal film, thermal radiation in the form of flashes of sunlight, achieve adiabatic goal.
Choose glass types according to design requirements, production manufacturer of glass curtain wall of wind pressure calculation, to provide the factory quality qualification certificate and the necessary test data; Approach to unpacking the appearance quality of the sample after glass, glass color, smooth surface, no pollution, warping, uniform coating layer, must not have scratches and take off the membrane. The whole case approach to have special steel frame, such as split open a case after deposit to vertical in indoor water cut nail system on the shelf.
2.1.3 article rubber, rubber mat: should be resistant to ageing flame retardant performance test factory proves that size comply with the design requirements, no fracture phenomenon.
2.1.4 aluminum alloy decoration layering, fasteners: color is consistent, without distortion, scratches, damage phenomenon, size comply with the design requirements.
Vertical keel 2.1.5 connection keel fittings: galvanized fittings, between the vertical and horizontal keel keel of indirect inner sleeve and fittings and so on, for all to be in good factory prefabrication, material and size to meet the design requirements.
2.1.6 bearing fasteners: vertical keel and structure between the main body, through the bearing fasteners to connect, fasteners should comply with the design requirements of the specifications of the size, in order to prevent corrosion, fasteners shall be galvanized surface treatment, fasteners and embedded in the concrete beam, column, the built-in parts is fixed on the wall, stainless steel or galvanized bolts shall be used.
2.1.7 bolt, nut, stainless steel nails and other fasteners use or galvanized, size comply with the design requirements, and have the factory certificate.
2.1.8 sealant: joint sealant is to ensure that the curtain wall with waterproof performance, airtight performance and seismic performance of the key. Its material must have good anti seepage, anti-aging, corrosion resistance, and can adapt to the structure deformation and temperature dilatational elasticity, therefore should have the factory proof and waterproof test record.
2.1.9 heat preservation material coefficient of thermal conductivity, waterproof properties and thickness to comply with the design requirements.
2.1.10 main equipment: vertical transportation's external use elevator, electric welding machine, welding, electric screwdriver, drill, plum wrench, adjustable wrench, transit or laser theodolite, level, steel tape, steel ruler, steel square, iron level.
2.2 operation conditions:
2.2.1 (or steel reinforced concrete structure) the main structure has been completed, and completed quality inspection procedures.
2.2.2 in the main structure construction stage, the construction unit according to the glass curtain wall design and production units to provide the arrangement plan of embedded parts, and built-in details, carry on the processing manufacture and embedded, built-in parts should be solid, position accurately. Up before installation of curtain wall vertical keel, advance will carve out, play, such as elevation and position deviation value beyond Mr Xu, should timely deal with the design regarding the processing.
Measuring unreeling 2.2.3 in advance:
2.2.3.1 according to the main structure of each layer has been playing up the vertical axis, control size of original structure design wheelbase, after check, use theodolite vertical keel pop up the edge of the floor in the center line, check the center line of the embedded parts in each layer are consistent with the center line of the vertical keel, conform to, if there is error, to deal with solution in advance.
2.2.3.2 to verify whether the total level of body structure and the total design elevation, and each layer of the floor elevation marking at the edge of the floor, then to check the installation of curtain wall.
2.2.3.3 according to the main structure of the plane on size, use the theodolite to find glass curtain wall outside edge size, want to notice and other exterior wall facing material connected to the node construction method. (the above content is to find the X, Y, Z axis line).
2.2.4 operation with outer frame (or electric basket) has been built for good, and the security is in charge of examination and acceptance of staff.
2.2.5 electric tools of temporary power supply has been connected and the advance and safety test run.
2.2.6 vertical keel, jellyfish, keel and various accessories has counted in advance, and the classification to the appointed place to store floor pattern, and modes.
2.2.7 glass act wall in the lightningproof grounding design scheme has been completed.
3 operation process
3.1 process:
Install tighten iron floors - namely assembly to install vertical main keel, keel installation transverse keel - >
Installation of galvanized steel to install the insulation fireproof mineral wool to install glass, flat Ann and decorative layering
3.2 installation tighten iron floors: the main structure construction and built-in embedded form and tighten up iron and connection method, are to operate according to the requirements of design drawings, generally has the following two ways:
3.2.1 in each layer of the main structure of the cast-in-situ concrete floor slab or beam embedded iron, Angle iron fittings and embedded parts welding, and then use bolt (galvanized) connected to the vertical keel, as shown in figure 9 to 17.
Figure 9-17 fasteners and a welding
3.2.2 in each layer of the main structure of the cast-in-place concrete floor or frame embedded within the "T" shape up slot, Angle steel fittings and "T" shape groove through galvanized bolt connection, namely the bolt in advance through the "T" shaped groove, again with Angle steel fittings connection, as shown in figure 9 to 18.
Figure 9 to 18 fasteners with built-in bolt connection
The installation of fasteners is the main link in the process of glass curtain wall installation, directly affect the curtain wall connected to the structure of main body is firm and safety degree. Figure 9 to 18 when installation will tighten iron in two direction for centerline, screw bolt at the beginning of the position correction of fasteners, and then screw down the bolt. Figure 9-17 fastener installation time, is also the first to align the vertical and horizontal centerline, then take welding welding, weld length, height and the quality of the welding electrode are according to the structure of weld.
3.3 horizontal, strong keel assembly: before the keel was fitted, assembled in advance the following connectors:
3.3.1 vertical joint between main keel with galvanized steel inner sleeve fittings, as shown in figure 9-19.
Figure 9-19 inside casing schematics
3.3.2 rainfall distribution on 10-12 vertical main keel fittings and fasteners.
3.3.3 transverse keel fittings.
Each node of the fitting method of connection to conform to the requirements of the design drawings, connection must be strong, horizontal vertical.
3.4 the vertical main keel installation: main keel, generally by next upgrade installation, every two layers for a single, each floor by connecting to tighten iron connected to the floor.
3.4.1 track main keel up first, aim at the ends of the upper and lower fitting tighten bolt hole iron, at the beginning of a bolt.
3.4.2 main keel can tighten long iron and fittings bolt hole up, down, left, right, left, right horizontal direction should be in conformity with the play the position of the line on the floor, up, down on the floor elevation, before and after (the Z axis) shall not exceed the line of control, to ensure that the vertical from top to bottom, spacing comply with the design requirements.
Rule 3.4.3 main keel through casing in the vertical extension, in order to prevent aluminium material affected by the temperature and deformation, should leave the appropriate width of expansion joint porosity, specific size according to the design requirements, tapping on the center line of the keel to the up and down.
3.4.4 after installed on the top, with a fine weft detector checked, after adjustment for vertical degree, vertical keel connected with structure of all bolts, nuts and washers and tighten, weld. All welds and welding to the design requirements, and hit the coating peel off, clean up after the inspection requirements, brush anti-rust paint.
3.5 horizontal level keel installation: well after vertical keel, verticality, levelness, spacing and so on a check, meets the requirements, can be horizontally the installation of the keel.
3.5.1 track of before installation, the waterproof rubber mat on a level keel caps on both ends.
3.5.2 use wood support will temporarily open the main keel, then load the horizontal level keel, then take the wooden support, both ends of the rubber mat is compressed, has a good waterproof effect.
3.5.3 level after early screw fittings bolt, and then use level sight, after transverse keel leveling, tighten the bolt.
3.5.4 installation process, we will strictly control the horizontal level keel and up and down the center of the distance between the vertical degree, at the same time to check the glass size can be set right.
3.6 installation floor between closed galvanized steel: as the curtain wall hung on the exterior walls, of all the pore to the vertical keel floors, for sound insulation, fire prevention, should set the mineral wool fire insulation layer on the galvanized steel sheet, will be closed between floors. To make the joints between steel plate and keel, rubber sealing strip set around the plate before, insert plate inside the ceiling keel (or use the tube expanding bolt on the concrete floor). In seams of steel plate and keel to paste the asphalt sealing strip, and shall apply
Stick is flat and level. Finally on the steel plate welding steel nails, welding firm, nail spacing comply with the design requirements and specifications, as shown in figure 9-20.
Figure 9-20 steel plate installation
3.7 install thermal insulation fireproof mineral wool: galvanized steel, install thermal insulation, fire prevention mineral wool.
Mineral wool insulation layer with adhesive glue on the plate. Use has been welded steel nails and stainless steel piece fixed thermal insulation layer, mineral wool should be laid flat, flat-fell seam no gap.
3.8 installation glass: single and double deck glass all by down, for installation, and from one direction to advance glass from external use the elevator to the designated place of the floors, vertical storage, and hold people watch.
3.8.1 will clean up dirt from the box, plug within the next box pad rubber positioning block, block is to support the full weight of the glass, require a certain hardness and durability, position as shown in figure 9-21.
3.8.2 embedding inside rubber strip sash slot (note type), embedded strip method is first interval equinoctial embedded plug, and then points embedded plug, as shown in figure 9 and 22.
3.8.3 carried shipment (large glass applied mechanical vacuum cup lift luck), first the glass surface dust, dirt to wipe clean. To box when installation, pay attention to the correct judgment, inside and outside, the glass embedded in the frame groove, embedded depth around should agree.
Figure 9-21 block sketch map
Figure 9-22 embedded plug strip method
3.8.4 will on both sides of the rubber pad to side of the vertical box, and then fixed glass, embedded outside sealing rubber strip (also available close sichuan and Angle of the joint sealing processing), set to level off. Close-grained, figure 9-23 section and horizontal transverse keel node is the main keel, Mosaic outside the box sealing rubber strip.
Figure 9-23 strip mounted
Ann cooked and decorative layering 3.9:
3.9.1 cover cooked installation: glass outer rubber strip (or sealant) after the installation, in glass and transverse frame, horizontal box junction are processed to cover the mouth, outdoor side outside gusset plate installation, indoor side install layering (both for the aluminum alloy material), according to its types curtain wall design requirements. As shown in figure 9-23:
3.9.2 curtain wall and roof top of parapet junction, aluminum roof pressure, and waterproof construction measures to prevent the rain along the wall of the gap between the parapet and inflow. When operating on the basis of curtain wall design. Figure 9 - after 24 for the parapet structure diagram.
Figure 9-24 parapet capping structure diagram
: 3.10 wash glass curtain wall glass after the assembly parts installation, prior to the completion inspection and acceptance, use wipe a window machine (or other sling) glass wash again, achieve surface clean, bright.
4 quality standards
4.1 ensure projects:
4.4.1 used glass curtain wall glass, skeleton, connectors, seals, rubber, fire insulation materials and closed end face sheet metal, such as its variety, level, specifications, color must comply with the design requirements and regulations of the product standard. Aluminum anodic oxidation film thickness must be greater than AA15 level. But also shoulds not be too thick.
4.1.2 if use carbon steel frame and fittings, must make antirust processing, its quality should comply with the provisions of the design and the present technical standard.
4.1.3 design deflection of steel framework, fittings of drawing force test requirements, such as the test data must meet the design requirements.
4.1.4 skeleton must be connected to the original structure is firm, no looseness, embedded parts size, the length of the weld, height and electrode type, should comply with the regulations of design.
4.1.5 main body structure and embedded parts of verticality, smoothness and reserved hole shall conform to the requirements of the specification or design, the error should be in the range of fittings is adjustable.
4.1.6 all nodes structure should accord with the requirement of design and product portfolio.
4.2 the basic items:
2 metal frame: colour and lustre is consistent, the surface is clean, no pollution, pitting, pits, scratches, spell seams tightly, flat, horizontal flat vertical, without fault dislocation. Connected to the curtain wall and the main structure of the fitting three directions to allow the installation of the deviation of plus or minus 1 mm.
4.2.2: glass toward the correct installation, clean, smooth surface, no warping. Color is consistent, no pollution, glass membrane surface in good condition, reflect the outside image without distortion. Four edges 45 ° Angle grinding smooth, line circle, glittering and translucent and beautiful appearance, appearance quality and performance in accordance with current relevant standards and regulations of the state.
Holdings bead and glass glue: layering buckle equaliser straight, counterpart, installation is firm, neat, sealing strip embedded plug tight installation, use of the sealant parts must be clean, strong and sealed binding, look straight, no fault dislocation, and smooth, tight, beautiful. Glue line outside without stain.
4.2.4 fire insulation filler material shall meet the following requirements: materials dry, laying thickness conform to the requirements, uniform, no omissions, the shop is stuck firm does not fall.
4.2.5 glass back, layering shall meet the following requirements:
Convergent closely seamless, layering straight, no fault dislocation, the slope is accurate, the drain is open.
4.2.6 about lightning protection grounding line installation quality to conform to the requirements of the electrical installation specification.
4.3 allowable deviation projects, see table 9-34.
The allowable deviation of glass curtain wall engineering and inspection method table 9-34
Serial number project allowable deviation (mm) test method
The distance between the adjacent promulgation and 1 Ting size (fixed) end + / - 1.5 amount to check with your ruler
Two adjacent beam spacing feet to 2000 + 1.2 or less quantity to check with your ruler
Two adjacent beam spacing '> 2000 + / - 1.5 amount to check with your ruler
Frame diagonal length difference 2000 2.0 or less quantity to check with your ruler
Frame diagonal length > 2000 + / - 2.5 amount to check with your ruler
H 30 m 4 or less
4 set Ting verticality h 60 m 7 theodolite and pull feet or less quantity to check
H > 60 m 10
Three adjacent three root Ting 2
The width of the 20 m 4 or less
Vertical Ting outside surface (same level) flat width 40 m 5 or less
Width of 60 m or less 6 with theodolite, amount of flux lines' inspection
The width of 80 m 8 or less
The width of 80 m 10 or less
Two adjacent beams < 1
6 bar height difference within the same level surface width of 35 m 4 level, or less amount of flux lines' inspection
Width of 35 m > 6
7 arc Ting exterior wall and design position 2 amount to check with your ruler
Eight adjacent component assembly clearance check with plug
Note: a neutral stand vertical keel namely the paper said.
5 finished product protection
5.1 aluminum alloy frame and various accessories, after the entry points specification, classification in the rain of the private library pattern, and not to put heavy articles in the pressure. Haul when light to take light put, prevent damaged scratches. Glass to prevent sun exposure, stored in a room, specifications set special on the gallows, modes and transportation, prevent damage and scratch the surface coating.
5.2 installation in the process of the aluminum alloy frame, pay attention to the protection of the aluminum frame outer membrane, shall not be cut. Positioned outside the frame house pay attention to the protection of glass, prevent bump broken glass.
5.3 aluminum alloy used in the horizontal, vertical keel with the attachment bolt holes, to advance with a mechanical good hole, welding shall not be used to burn holes.
5.4 during the installation process, prevent file to fall, so be pitched a safety net.
5.5 near the glass screen each working procedure, before the operation of glass for temporary protection, such as fiber board cover.
6 should pay attention to quality problems
6.1 glass installation is: install the vertical and transverse keel, not carefully check the centerline and verticality, also did not check the glass size, so the installation of vertical, transverse keel, must strictly control verticality and the centerline.
Decorative layering vertical, horizontal 6.2: installing a decorative bead, should disconnect and the horizontal line, after the Ann should be horizontal, vertical.
6.3 glass severe "image distortion" phenomenon, cause the reason is that the glass itself warping, rubber strip rough, stained glass coating layer on one side of the cement and so on. So glass comes into play to be out of the spot check, found before installation should be picking without warping phenomenon. Install each working procedure must be strictly in the process of operation, the sealing strip inlay flat, after the glue to clean surface.
6.4 surface pollution: aluminum alloy components are mainly in the process of transport installation, premature tear the surface protective film, or glue surface pollution.
Glass curtain wall ooze water: 6.5 due to the rubber strip around the glass embedded plug is lax or interface have crack caused by rainwater infiltration, so Ann rubber strip, strip specification to match, the size may not be too big or too small, embedded plug to leveling &compaction, interface must use sealant filling. To hold water shall prevail.
6.6 connect the vertical keel fastener and embedded parts welding is not strong, the fasteners should be supporting part, related to the curtain wall frame connected to the main structure safety degree, so the connection welding quality fasteners and embedded parts must be strictly controlled, should let the welder/welding for welding, weld height, length should be applied according to the requirement of the structure of weld welding.
There is black mark on the individual parts: 6.7 curtain wall glass is mainly caused by individual glass coating is not in conformity with the requirements. Glass in each to check before installation, qualified after the installation.
7 quality records
This technology standard should have the following quality records:
7.1 the qualification certificate of curtain wall design, production, installation of the manufacturer and the city is built appoint sales licenses.
7.2 aluminum alloy frame mechanical performance test certification, mineral wool, rubber strip, sealant, glass and so on all have the factory certificate.
7.3 fastener installation hidden inspection records (including the grounding line installation hidden inspection records).
7.5 wall installation quality inspection records.
1 scope
The technology standard is applicable to civil construction site packaged exposed frame glass curtain wall installation (i.e. main bearing skeleton is perpendicular to the vertical keel and level to the time of the keel, frame inner glass embedded in the tectonic pattern).
The manufacturer of glass curtain wall is more, GeChang node structure and installation method, there exist certain differences when installation should be careful about the workmanship and quality standard. This technology standard only describes one approach.
2 construction preparation
Glass curtain wall develops very fast in recent years, it has unique artistic effect, not only should consider when designing architectural shape and structure of various performance requirements, such as mechanical (strength, stiffness and stability), waterproof, thermal insulation, air, fire, earthquake and lightning protection, such as performance, the performance and use function and security of person all have close relations, and Beijing is built appoint regulations issued by the ministry of construction for this: who is engaged in the glass curtain wall design, production, installation of the enterprise, must pass through the city is built appoint after qualification examination, can carry on the processing production and installation. Before construction, therefore, to the design, production, installation of the first unit of qualification examination.
2.1 material and main equipments:
2.1.1 aluminum profile: should be surface anodic oxidation treatment. The variety of aluminum, level, specifications, color, cross section shape, surface anodic oxidation film thickness, etc., must comply with the design requirements, the alloy composition and mechanical properties shall be the manufacturer's certificate, and shall comply with the current relevant national standards. Enter the site to conduct a visual inspection; To flat gauge, pollution-free, pits, pits, scratches, surface defects such as warp, specification, type and points respectively in indoor wood square pattern mat.
2.1.2 glass: the appearance quality and optical performance should be consistent with the current national standard.
2.1.2 to according to the structural classification:
A. the single-layer glass: float plate glass or tempered glass (general 6 mm or 8 mm thickness).
B. double insulating glass: the thickness is 6 + 12 + 6 (mm) or 9 + 8 + 8 (mm), middle value was not flowing air layer between two layers of glass.
2.1.2.2 classified by function:
A. endothermic glass: add trace amounts of metal chlorides in transparent glass, form with color glass, its characteristic is to make visible through and through calorie restriction in with infrared ray.
B. the mirror glass: one side or both sides is in single or double glass are plated metal film, thermal radiation in the form of flashes of sunlight, achieve adiabatic goal.
Choose glass types according to design requirements, production manufacturer of glass curtain wall of wind pressure calculation, to provide the factory quality qualification certificate and the necessary test data; Approach to unpacking the appearance quality of the sample after glass, glass color, smooth surface, no pollution, warping, uniform coating layer, must not have scratches and take off the membrane. The whole case approach to have special steel frame, such as split open a case after deposit to vertical in indoor water cut nail system on the shelf.
2.1.3 article rubber, rubber mat: should be resistant to ageing flame retardant performance test factory proves that size comply with the design requirements, no fracture phenomenon.
2.1.4 aluminum alloy decoration layering, fasteners: color is consistent, without distortion, scratches, damage phenomenon, size comply with the design requirements.
Vertical keel 2.1.5 connection keel fittings: galvanized fittings, between the vertical and horizontal keel keel of indirect inner sleeve and fittings and so on, for all to be in good factory prefabrication, material and size to meet the design requirements.
2.1.6 bearing fasteners: vertical keel and structure between the main body, through the bearing fasteners to connect, fasteners should comply with the design requirements of the specifications of the size, in order to prevent corrosion, fasteners shall be galvanized surface treatment, fasteners and embedded in the concrete beam, column, the built-in parts is fixed on the wall, stainless steel or galvanized bolts shall be used.
2.1.7 bolt, nut, stainless steel nails and other fasteners use or galvanized, size comply with the design requirements, and have the factory certificate.
2.1.8 sealant: joint sealant is to ensure that the curtain wall with waterproof performance, airtight performance and seismic performance of the key. Its material must have good anti seepage, anti-aging, corrosion resistance, and can adapt to the structure deformation and temperature dilatational elasticity, therefore should have the factory proof and waterproof test record.
2.1.9 heat preservation material coefficient of thermal conductivity, waterproof properties and thickness to comply with the design requirements.
2.1.10 main equipment: vertical transportation's external use elevator, electric welding machine, welding, electric screwdriver, drill, plum wrench, adjustable wrench, transit or laser theodolite, level, steel tape, steel ruler, steel square, iron level.
2.2 operation conditions:
2.2.1 (or steel reinforced concrete structure) the main structure has been completed, and completed quality inspection procedures.
2.2.2 in the main structure construction stage, the construction unit according to the glass curtain wall design and production units to provide the arrangement plan of embedded parts, and built-in details, carry on the processing manufacture and embedded, built-in parts should be solid, position accurately. Up before installation of curtain wall vertical keel, advance will carve out, play, such as elevation and position deviation value beyond Mr Xu, should timely deal with the design regarding the processing.
Measuring unreeling 2.2.3 in advance:
2.2.3.1 according to the main structure of each layer has been playing up the vertical axis, control size of original structure design wheelbase, after check, use theodolite vertical keel pop up the edge of the floor in the center line, check the center line of the embedded parts in each layer are consistent with the center line of the vertical keel, conform to, if there is error, to deal with solution in advance.
2.2.3.2 to verify whether the total level of body structure and the total design elevation, and each layer of the floor elevation marking at the edge of the floor, then to check the installation of curtain wall.
2.2.3.3 according to the main structure of the plane on size, use the theodolite to find glass curtain wall outside edge size, want to notice and other exterior wall facing material connected to the node construction method. (the above content is to find the X, Y, Z axis line).
2.2.4 operation with outer frame (or electric basket) has been built for good, and the security is in charge of examination and acceptance of staff.
2.2.5 electric tools of temporary power supply has been connected and the advance and safety test run.
2.2.6 vertical keel, jellyfish, keel and various accessories has counted in advance, and the classification to the appointed place to store floor pattern, and modes.
2.2.7 glass act wall in the lightningproof grounding design scheme has been completed.
3 operation process
3.1 process:
Install tighten iron floors - namely assembly to install vertical main keel, keel installation transverse keel - >
Installation of galvanized steel to install the insulation fireproof mineral wool to install glass, flat Ann and decorative layering
3.2 installation tighten iron floors: the main structure construction and built-in embedded form and tighten up iron and connection method, are to operate according to the requirements of design drawings, generally has the following two ways:
3.2.1 in each layer of the main structure of the cast-in-situ concrete floor slab or beam embedded iron, Angle iron fittings and embedded parts welding, and then use bolt (galvanized) connected to the vertical keel, as shown in figure 9 to 17.
Figure 9-17 fasteners and a welding
3.2.2 in each layer of the main structure of the cast-in-place concrete floor or frame embedded within the "T" shape up slot, Angle steel fittings and "T" shape groove through galvanized bolt connection, namely the bolt in advance through the "T" shaped groove, again with Angle steel fittings connection, as shown in figure 9 to 18.
Figure 9 to 18 fasteners with built-in bolt connection
The installation of fasteners is the main link in the process of glass curtain wall installation, directly affect the curtain wall connected to the structure of main body is firm and safety degree. Figure 9 to 18 when installation will tighten iron in two direction for centerline, screw bolt at the beginning of the position correction of fasteners, and then screw down the bolt. Figure 9-17 fastener installation time, is also the first to align the vertical and horizontal centerline, then take welding welding, weld length, height and the quality of the welding electrode are according to the structure of weld.
3.3 horizontal, strong keel assembly: before the keel was fitted, assembled in advance the following connectors:
3.3.1 vertical joint between main keel with galvanized steel inner sleeve fittings, as shown in figure 9-19.
Figure 9-19 inside casing schematics
3.3.2 rainfall distribution on 10-12 vertical main keel fittings and fasteners.
3.3.3 transverse keel fittings.
Each node of the fitting method of connection to conform to the requirements of the design drawings, connection must be strong, horizontal vertical.
3.4 the vertical main keel installation: main keel, generally by next upgrade installation, every two layers for a single, each floor by connecting to tighten iron connected to the floor.
3.4.1 track main keel up first, aim at the ends of the upper and lower fitting tighten bolt hole iron, at the beginning of a bolt.
3.4.2 main keel can tighten long iron and fittings bolt hole up, down, left, right, left, right horizontal direction should be in conformity with the play the position of the line on the floor, up, down on the floor elevation, before and after (the Z axis) shall not exceed the line of control, to ensure that the vertical from top to bottom, spacing comply with the design requirements.
Rule 3.4.3 main keel through casing in the vertical extension, in order to prevent aluminium material affected by the temperature and deformation, should leave the appropriate width of expansion joint porosity, specific size according to the design requirements, tapping on the center line of the keel to the up and down.
3.4.4 after installed on the top, with a fine weft detector checked, after adjustment for vertical degree, vertical keel connected with structure of all bolts, nuts and washers and tighten, weld. All welds and welding to the design requirements, and hit the coating peel off, clean up after the inspection requirements, brush anti-rust paint.
3.5 horizontal level keel installation: well after vertical keel, verticality, levelness, spacing and so on a check, meets the requirements, can be horizontally the installation of the keel.
3.5.1 track of before installation, the waterproof rubber mat on a level keel caps on both ends.
3.5.2 use wood support will temporarily open the main keel, then load the horizontal level keel, then take the wooden support, both ends of the rubber mat is compressed, has a good waterproof effect.
3.5.3 level after early screw fittings bolt, and then use level sight, after transverse keel leveling, tighten the bolt.
3.5.4 installation process, we will strictly control the horizontal level keel and up and down the center of the distance between the vertical degree, at the same time to check the glass size can be set right.
3.6 installation floor between closed galvanized steel: as the curtain wall hung on the exterior walls, of all the pore to the vertical keel floors, for sound insulation, fire prevention, should set the mineral wool fire insulation layer on the galvanized steel sheet, will be closed between floors. To make the joints between steel plate and keel, rubber sealing strip set around the plate before, insert plate inside the ceiling keel (or use the tube expanding bolt on the concrete floor). In seams of steel plate and keel to paste the asphalt sealing strip, and shall apply
Stick is flat and level. Finally on the steel plate welding steel nails, welding firm, nail spacing comply with the design requirements and specifications, as shown in figure 9-20.
Figure 9-20 steel plate installation
3.7 install thermal insulation fireproof mineral wool: galvanized steel, install thermal insulation, fire prevention mineral wool.
Mineral wool insulation layer with adhesive glue on the plate. Use has been welded steel nails and stainless steel piece fixed thermal insulation layer, mineral wool should be laid flat, flat-fell seam no gap.
3.8 installation glass: single and double deck glass all by down, for installation, and from one direction to advance glass from external use the elevator to the designated place of the floors, vertical storage, and hold people watch.
3.8.1 will clean up dirt from the box, plug within the next box pad rubber positioning block, block is to support the full weight of the glass, require a certain hardness and durability, position as shown in figure 9-21.
3.8.2 embedding inside rubber strip sash slot (note type), embedded strip method is first interval equinoctial embedded plug, and then points embedded plug, as shown in figure 9 and 22.
3.8.3 carried shipment (large glass applied mechanical vacuum cup lift luck), first the glass surface dust, dirt to wipe clean. To box when installation, pay attention to the correct judgment, inside and outside, the glass embedded in the frame groove, embedded depth around should agree.
Figure 9-21 block sketch map
Figure 9-22 embedded plug strip method
3.8.4 will on both sides of the rubber pad to side of the vertical box, and then fixed glass, embedded outside sealing rubber strip (also available close sichuan and Angle of the joint sealing processing), set to level off. Close-grained, figure 9-23 section and horizontal transverse keel node is the main keel, Mosaic outside the box sealing rubber strip.
Figure 9-23 strip mounted
Ann cooked and decorative layering 3.9:
3.9.1 cover cooked installation: glass outer rubber strip (or sealant) after the installation, in glass and transverse frame, horizontal box junction are processed to cover the mouth, outdoor side outside gusset plate installation, indoor side install layering (both for the aluminum alloy material), according to its types curtain wall design requirements. As shown in figure 9-23:
3.9.2 curtain wall and roof top of parapet junction, aluminum roof pressure, and waterproof construction measures to prevent the rain along the wall of the gap between the parapet and inflow. When operating on the basis of curtain wall design. Figure 9 - after 24 for the parapet structure diagram.
Figure 9-24 parapet capping structure diagram
: 3.10 wash glass curtain wall glass after the assembly parts installation, prior to the completion inspection and acceptance, use wipe a window machine (or other sling) glass wash again, achieve surface clean, bright.
4 quality standards
4.1 ensure projects:
4.4.1 used glass curtain wall glass, skeleton, connectors, seals, rubber, fire insulation materials and closed end face sheet metal, such as its variety, level, specifications, color must comply with the design requirements and regulations of the product standard. Aluminum anodic oxidation film thickness must be greater than AA15 level. But also shoulds not be too thick.
4.1.2 if use carbon steel frame and fittings, must make antirust processing, its quality should comply with the provisions of the design and the present technical standard.
4.1.3 design deflection of steel framework, fittings of drawing force test requirements, such as the test data must meet the design requirements.
4.1.4 skeleton must be connected to the original structure is firm, no looseness, embedded parts size, the length of the weld, height and electrode type, should comply with the regulations of design.
4.1.5 main body structure and embedded parts of verticality, smoothness and reserved hole shall conform to the requirements of the specification or design, the error should be in the range of fittings is adjustable.
4.1.6 all nodes structure should accord with the requirement of design and product portfolio.
4.2 the basic items:
2 metal frame: colour and lustre is consistent, the surface is clean, no pollution, pitting, pits, scratches, spell seams tightly, flat, horizontal flat vertical, without fault dislocation. Connected to the curtain wall and the main structure of the fitting three directions to allow the installation of the deviation of plus or minus 1 mm.
4.2.2: glass toward the correct installation, clean, smooth surface, no warping. Color is consistent, no pollution, glass membrane surface in good condition, reflect the outside image without distortion. Four edges 45 ° Angle grinding smooth, line circle, glittering and translucent and beautiful appearance, appearance quality and performance in accordance with current relevant standards and regulations of the state.
Holdings bead and glass glue: layering buckle equaliser straight, counterpart, installation is firm, neat, sealing strip embedded plug tight installation, use of the sealant parts must be clean, strong and sealed binding, look straight, no fault dislocation, and smooth, tight, beautiful. Glue line outside without stain.
4.2.4 fire insulation filler material shall meet the following requirements: materials dry, laying thickness conform to the requirements, uniform, no omissions, the shop is stuck firm does not fall.
4.2.5 glass back, layering shall meet the following requirements:
Convergent closely seamless, layering straight, no fault dislocation, the slope is accurate, the drain is open.
4.2.6 about lightning protection grounding line installation quality to conform to the requirements of the electrical installation specification.
4.3 allowable deviation projects, see table 9-34.
The allowable deviation of glass curtain wall engineering and inspection method table 9-34
Serial number project allowable deviation (mm) test method
The distance between the adjacent promulgation and 1 Ting size (fixed) end + / - 1.5 amount to check with your ruler
Two adjacent beam spacing feet to 2000 + 1.2 or less quantity to check with your ruler
Two adjacent beam spacing '> 2000 + / - 1.5 amount to check with your ruler
Frame diagonal length difference 2000 2.0 or less quantity to check with your ruler
Frame diagonal length > 2000 + / - 2.5 amount to check with your ruler
H 30 m 4 or less
4 set Ting verticality h 60 m 7 theodolite and pull feet or less quantity to check
H > 60 m 10
Three adjacent three root Ting 2
The width of the 20 m 4 or less
Vertical Ting outside surface (same level) flat width 40 m 5 or less
Width of 60 m or less 6 with theodolite, amount of flux lines' inspection
The width of 80 m 8 or less
The width of 80 m 10 or less
Two adjacent beams < 1
6 bar height difference within the same level surface width of 35 m 4 level, or less amount of flux lines' inspection
Width of 35 m > 6
7 arc Ting exterior wall and design position 2 amount to check with your ruler
Eight adjacent component assembly clearance check with plug
Note: a neutral stand vertical keel namely the paper said.
5 finished product protection
5.1 aluminum alloy frame and various accessories, after the entry points specification, classification in the rain of the private library pattern, and not to put heavy articles in the pressure. Haul when light to take light put, prevent damaged scratches. Glass to prevent sun exposure, stored in a room, specifications set special on the gallows, modes and transportation, prevent damage and scratch the surface coating.
5.2 installation in the process of the aluminum alloy frame, pay attention to the protection of the aluminum frame outer membrane, shall not be cut. Positioned outside the frame house pay attention to the protection of glass, prevent bump broken glass.
5.3 aluminum alloy used in the horizontal, vertical keel with the attachment bolt holes, to advance with a mechanical good hole, welding shall not be used to burn holes.
5.4 during the installation process, prevent file to fall, so be pitched a safety net.
5.5 near the glass screen each working procedure, before the operation of glass for temporary protection, such as fiber board cover.
6 should pay attention to quality problems
6.1 glass installation is: install the vertical and transverse keel, not carefully check the centerline and verticality, also did not check the glass size, so the installation of vertical, transverse keel, must strictly control verticality and the centerline.
Decorative layering vertical, horizontal 6.2: installing a decorative bead, should disconnect and the horizontal line, after the Ann should be horizontal, vertical.
6.3 glass severe "image distortion" phenomenon, cause the reason is that the glass itself warping, rubber strip rough, stained glass coating layer on one side of the cement and so on. So glass comes into play to be out of the spot check, found before installation should be picking without warping phenomenon. Install each working procedure must be strictly in the process of operation, the sealing strip inlay flat, after the glue to clean surface.
6.4 surface pollution: aluminum alloy components are mainly in the process of transport installation, premature tear the surface protective film, or glue surface pollution.
Glass curtain wall ooze water: 6.5 due to the rubber strip around the glass embedded plug is lax or interface have crack caused by rainwater infiltration, so Ann rubber strip, strip specification to match, the size may not be too big or too small, embedded plug to leveling &compaction, interface must use sealant filling. To hold water shall prevail.
6.6 connect the vertical keel fastener and embedded parts welding is not strong, the fasteners should be supporting part, related to the curtain wall frame connected to the main structure safety degree, so the connection welding quality fasteners and embedded parts must be strictly controlled, should let the welder/welding for welding, weld height, length should be applied according to the requirement of the structure of weld welding.
There is black mark on the individual parts: 6.7 curtain wall glass is mainly caused by individual glass coating is not in conformity with the requirements. Glass in each to check before installation, qualified after the installation.
7 quality records
This technology standard should have the following quality records:
7.1 the qualification certificate of curtain wall design, production, installation of the manufacturer and the city is built appoint sales licenses.
7.2 aluminum alloy frame mechanical performance test certification, mineral wool, rubber strip, sealant, glass and so on all have the factory certificate.
7.3 fastener installation hidden inspection records (including the grounding line installation hidden inspection records).
7.5 wall installation quality inspection records.
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