Friday, January 20, 2017

Metal panels installation process

Act the role of panel installation
1 scope
The technology standard is applicable to industrial and civil construction projects, both inside and outside walls, roof, ceiling and other metal decorative panel installation. Can also form a complete set of big glass Windows and glass curtain wall or application, and in the corner area, glass curtain wall around the building expansion joints coping, horizontal parts of the form a complete set of application.
The manufacturer of metal decorative panels, GeChang node structure and installation method, there exist certain differences when installation should be careful about. This technology standard only describes one approach.
2 construction preparation
2.1 material requirements:
2.1.1 color coating steel plate: the original plate hot rolled steel plate and galvanized steel. To improving the performance of anti-corrosion properties of steel and the surface should be coated with organic, inorganic or composite coating, of which the rapid development of organic coating steel plate, the commonly used organic coating for polyvinyl chloride (PVC), in addition to poly acrylate, epoxy resin, alkyd resin, etc. The combination of coating and steel plate with film laminating method and paint coating method. The main purpose of color coating steel plate for roof panel and wall panel, etc. Shanghai three factory production of plastic composite plate, the length is 1800 mm, 2000 mm, width is 450 mm, 500 mm and 1000 mm, thickness is 0.35 ~ 0.35 mm, etc. Has the properties such as corrosion resistance, abrasion resistance, insulation. Plastic and steel plate the peel strength of 20 or higher n/cm.
2.1.2 aluminium plate: aluminium alloy plate for decoration engineering, its varieties and specifications. From surface treatment, anodic oxidation treatment and spray processing. From the commonly used color: silver, bronze, gold, etc. From geometry size: is there a bar plate and the square plate. More than the width of the strip plate is 80 ~ 100 mm, thickness is 0.5 ~ 1.5 mm more, about 6 m length. Square plate including square, rectangle, etc. Used in high-rise building outer wall plate, single block area is generally larger, high rigidity and durability requirements, thick plate to appropriate some, even added a rib. From the decorative effect; There are aluminum alloy flowers
Wen shallow pattern plate, aluminum plate, aluminum and aluminum alloy corrugated plate, aluminium and aluminium alloy plate, etc.
2.1.3 skeleton material: is made up of bearing bar Mosaic, main material for aluminum or steel, etc. Because of steel is cheaper, high strength, easy installation, so most engineering with Angle or channel. But the skeleton treatment shall be carried out in advance, it is forbidden to black iron into the floor.
2.1.4 fixed frame fittings: mainly expansion bolt, iron plate, washer, nut and the skeleton of fixed design and installation of fittings you need, its quality must conform to the requirements.
2.2 the main equipment:
2.2.1 cut, sheet metal processing, assembling and so on the workbench, cutting machine, forming machine, flanging machine, grinder, metal plate connected hand-held electric drill, electric drill, steel tape punch a concrete wall (1 m long), long tape measure, ruler, a hammer, a variety of shapes, round steel chisel (flat), galvanized iron wire, spring wire wrapped the chalk line, ink fountain, small white line, hand wheel, pliers, iron level, cotton silk, broom, shovels, surgery, grey tank, ash bucket, tool bag, gloves and red pencil.
2.3 operation conditions:
2.3.1 metope of concrete and plaster has been completed, and after drying, moisture content is not higher than 8%; Wood products shall not be greater than 12%.
2.3.2 reserved water and electricity and equipment, top of the wall embedded parts has been finished. Vertical transportation tools are ready in advance.
2.3.3 decorative panel to check in advance engineering at the grass-roots level, and make a good record of implicit preview, qualified rear can install process.
2.3.4 outer shelf (senior multi-purpose basket or hanging shelf) should be pitched and installed ahead of schedule, multi-storey building appropriate chooses double row shelf or bridge, the bearing bar and rod should leave the walls and doors and Windows altercation between 150 ~ 200 mm. Shelves of high step and pitched to conform to the requirements of the construction and safety operation procedures.
2.3.5 construction personnel for technical disclosure, should emphasize technical measures, quality requirements and finished product protection. Large area between example, before construction should do first after quality inspection departments qualified, can organize team construction.
3 operation process
3.1 process:
In principle is a bottom-up installation metope.
Hanging straight, set square, find rules and elastic line - fixed frame fittings - fixed frame - metal panels installed -

Convergent tectonic

3.2 hanging straight line, set of square, to find the rules, play: first, according to the requirements of design drawings and the geometry size, to set metal decorative panel walls hung straight, set square, find rules and a measured and elastic line, determine the size and number of facing wall panel.
Fittings: 3.3 fixed skeleton skeleton of bearing bar is fixed by fitting and structure, and between the connector and structure, can with the embedded parts welded structure, can also play bolts on the wall. For the latter method is more flexible, size error is small, easy to ensure the accuracy of the position, and thus is more used in actual construction. Must be in the bolt hole position painting line by line.
3.4 fixed frame: its structure as shown in figure 9 to 8, as shown in figure 9 to 9. Skeleton should be embalmed in advance. Installed skeleton position accuracy, combining to firm. After installation shall be complete to check the centerline and surface elevation, etc. The exterior wall of high-rise building, in order to ensure the installation precision of veneer, appropriate USES theodolite to through the bearing bars. Deformation joint and settlement joint should be disposed of properly.
3.5 metal finishing installation: the installation of the wallboard order from each side wall of a vertical lower part of the first row of the first board, installed from bottom to top. Installation to the end of the wall in the first row and then the second row. After laying 10 per installed wallboard, should disconnect check once, in order to eliminate the error in time. In order to ensure the quality of metope appearance, bolt position must be accurate, and USES the single hook bolt construction, make the position of the bolt horizontal vertical. Commonly used method of fixed metal panels, there are two main types. A square plate with screws is to strip or twist to the steel or the gallows, the durability of this method is better, more used for exterior wall. Another kind is will batten on the keel of a special card, this method used for indoor.
Gap between plates generally is 10 ~ 20 mm, multi-purpose rubber strip or seal the arrow elastic material processing. When the panels installed, should pay attention to the easy to the contaminated parts need plastic mulch to protect it. Easy is zoned, touch, should set up safety rail protection.
3.6 convergent structure: its structure as shown in figure 9 and 10. Level of coping, or end, the processing of expansion joints, two different materials transfer processing, not only relates to decorative effect, but also have great influence to use a function. Therefore, general multi-purpose made of special performance of similar molding metal plate are disposed of properly.
Structure is simpler and corner processing method, mostly with a thicker (1.5 mm) of the rectangular shape of metal plate, and the outer wall plate with bolt connection in mind, the corner parts processing as shown in figure 9 to 11, as shown in figure 9-12.
Window, the top of the parapet, all belong to the level of coping process (figure 9-13), is covered with aluminum alloy plate to block wind and rain drenched. Level of fixed bridge, on the grass-roots welding steel skeleton first commonly, then bolted cover plate is fixed on the frame. Cover the connection between the straight lap approach (high low, lap width comply with the design requirements, and rubber seal).
Metope or edge parts processing (figure 9-14), is made of aluminum alloy forming color similar to wallboard end and keel parts sealed.
Metope or lower place, is to use a special board, the board of the bottom seal, cover plate gap between wall and at the same time, prevent the rain infiltration indoor (figure 9-15).
The processing of expansion joints and settlement joints (figure 9-16), the first thing to meet the needs of the building scale, settlement, and at the same time should also consider adornment effect. In addition, this part is also waterproof weak link, the tectonic node should be carefully considered. Generally available neoprene belt connection, sealing role.
Wall of the outer and inner Angle and steel window around the water board, etc must be on the scene processing of profiled, should refer to the drawings, to the observed set of full scale of installed metope, determine its shape, size, make its machining accuracy, ease of installation.
4 quality standards
4.1 ensure projects:
4.4.1 metal panels of variety, quality, color, pattern, line must comply with the design requirements, product certification.
4.1.2 wall skeleton, such as using steel keel, its specifications, shape must meet the design requirements, carefully derusting, anticorrosive processing. Panel and the skeleton of a fixed must be strong, must not be loose.

4.2 the basic items:
2 metal panels installed, when required by the design without, appropriate USES aluminum core pulling rivets, middle must cushion rubber gasket. To control the core pulling rivets aluminum spacing in 100 ~ 150 mm advisable.
4.2.2 it outstand the wall of the window, the window is convex line installation parts such as metal finishing, cutting board dimension should be accurate, smooth edges tidy, lap and direction should be the correct size.
Holdings plate installation by docking shall be strictly forbidden. The lap length should comply with the design requirements, can not have slotted phenomenon.
4.2.4 when walls inside of the frame after the installation, should be timely guide wall casting concrete, the height, thickness and concrete strength grade should comply with the design requirements, if no requirement, design according to kicking practice processing.
4.2.5 variety of insulation materials, piled up density should comply with the design requirements, and shall fill full, no space.
4.2.6 metal veneer surface should be smooth, clean, color coordination, no discoloration, whiskering, stain and remarkable sheen.
4.2.7 should be embedded metal slab joints of CFRD is acted the role of the dense, smooth, uniform size, the same color. Yin and Yang Angle place plate lap in the right direction, not the whole brick using parts is appropriate.
4.2.8 protrusion board application around the whole set of cutting consistent, neat; Dado, stick on the face and let it outstand the wall thickness.
4.2.9 water slope to the right, drip line (slot) straight.
4.3 allowable deviation projects, see table 9-33.
5 finished product protection
5.1 to clear in time clean residue on the door window frame and metal panel of contamination such as sealant, fingerprints, water and other sundry, appropriate paste the protective film, prevent pollution and corrosion.
Metal panels installed allowable deviation table 9-33
Will project allow deviation (mm) check method
Aluminium alloy plate profiling steel plate

Facade vertical indoor 2 2 in 2 m quantity check line board and ruler
Vertical elevation outdoor 3 3 in 2 m quantity check line board and ruler
2 surface is flat and level 3 3 in 2 m line board and feeler check
Three Yang Angle founder and 3 with a 20 cm square chi and feeler check
4 straight seam 0.5 1, 5 m string cable and rod inspection
5 dado flat top of 2, 3, 5 m string cable and rod inspection
6 seam height 1 1 short feet with steel plates and feeler check
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 of metal panel.
5.3 when the demolition of frame don't collision metal panels.
6 should pay attention to quality problems
6.1 leakage: veneer not leak is its main function, should be guaranteed. First, since every piece of veneer installation must be in strict accordance with the standard procedures to construction seriously, especially the convergent structure of each part must deal with good, quality inspection department inspection shall be in place timely.
6.2 sealing glue, : this have very close relationship with leakage, such as personal will happen. According to incomplete statistics, sealing glue, causing leakage and rework, accounting for glass curtain wall, metal panel and aluminum alloy doors and Windows installation quantity by about 30%, is the lion's share of the three kinds of external decoration engineering quality common fault, therefore attaches great importance to the sealing glue, this procedure.
Seam 6.3 points, 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 not fine, thread is not straight, and messenger wire check attendance, etc.
6.4 metope dirty: 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 dry clean brush good habit; Three is to strengthen the management and education work product protection; Four is completed before the top-down thoroughly cleaning brush work. Note also that the qing brush tools. Materials must comply with all kinds of metal panels related instructions, otherwise it will bring bad effect and should not have a loss.
7 quality records
This technology standard should have the following quality records:
7.1 metal panels and fittings factory certificate.
7.2 part project quality inspection evaluation table.
7.3 resistance to wind pressure and water spray test report, etc.

No comments:

Post a Comment