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First, construction preparation First, the selection of materials is very important. The materials used for stone curtain walls should first meet the requirements of the current national product quality standards and require weatherability, fire resistance and weathering resistance. The second is color difference control, that is, according to the inspection supplier's supply capacity and processing technology, determine the supplier. The construction, supervision and construction units jointly negotiate and screen two sample seals that are closer in color as the upper and lower limits of the color difference. The manufacturer is required to layer the stone and process it. The stone on the same facade must be processed by the same batch of raw materials and sealed. The upper and lower limits of sample color are available. After entering the site, the supervision and construction of the stone shall be strictly carried out according to the samples of the sealed sample. The stones that are not within the color limits shall not be accepted, and at the same time, the color difference of each wall shall be ensured to be uniform.
Then the choice of curtain wall components and auxiliary materials:
(1) Steel extension arm: It is made of I100mm×63mm×l0mm angle steel. The length is determined according to the actual distance of the stone plate from the structural plane. One end is welded on the structural embedded part, and the other end is connected with bolt and vertical keel.
(2) Vertical keel: Made of Ll00 mm x 50mm x 5mm high-strength aluminum alloy square tube, it is 2-6cm in length and is connected by a simple core between upper and lower vertical keel.
(3) Supporting parts: Made of L80mm × 8mm angle steel, the vertical long hole is connected with the vertical keel, and the cone hole is used to connect the horizontal keel.
(4) Horizontal keel: Made of 80mm x 8mm angle steel, long holes at both ends are used to connect the supporting pieces, and the middle round hole is used to install the connecting pieces.
(5) Connector: It is made of 80mm×8mm angle steel, bolted to the horizontal keel, and the aluminum alloy pendant hangs on it.
(6) Stone back bolts and high-strength aluminum alloy pendants.
(7) Styrofoam foam sticks, which are used for sewing plugboards, are slightly larger in diameter than board seams.
(8) Silicone sealants for sealing sheet seams and sealing tapes and paper tapes for stone-filled holes.
The construction machines to be used in the construction process include: impact drills, electric drills, electric welders, electric cutters, grinders, commonly used measuring instruments and wrenches, hammers, crowbars, dynamic chain, 1.5 t electric Gourds, surface adjustment clips, etc.
Second, the stone board dry hanging technology 1. Installation process: construction preparation - grassroots and embedded parts handling - pop-up keel installation control line - welded steel boom - vertical keel installation - support installation - horizontal Keel Installation - Connector Installation - Stone Backbolt Installation - Stone Aluminum Alloy Pendant Installation - Material Selection - Stone Lifting - Adjusting Connector - Tightening Aluminum Alloy Pendant Height Adjusting Bolts and Anti-slip Locating Screws - Nail - Crevices Sealing tape, adhesive tape - beat silicone sealant - check and acceptance.
2. Wall lofting: Due to the complex shape of the building and the fact that there are many window openings and the combination of singeing and burning, we are familiar with the exterior wall decoration drawings, and we will study the knotty samples and determine the specifications and dimensions of the accessories used. Prepare a feasible construction plan. After the plan has been cleared and acceptance is complete, a comprehensive measurement is made on the structure of the external wall of the building to install the stone to understand the deviation of the structural surface. At the same time, according to the actual size adjustment of the stone, a detailed drawing of the stone sample is finally drawn and the stone is pressed. The number of the sorting sequence, and finally the stone and pop-up installation control lines are processed according to the stakeout details and installed in the order of numbers.
3. Installation of stone curtain wall panels (1) The primary treatment of the primary wall is better due to the verticality and flatness of the wall to meet the keel construction requirements. The mortar of the main structure side beams, columns and embedded structures on the secondary structure is cleaned, and the position of the embedded parts is checked according to the control line and the grid size.
(2) The steel frame mounting arm and the structural embedded part are welded. The vertical keel and the steel arm, the supporting member and the vertical keel, the horizontal keel and the supporting member, and the connecting member and the transverse keel are all bolted. The vertical keel and horizontal keel are both fixed in length and require accurate positioning of the keel: the verticality and flatness of the skeleton construction are required to be high: bolt gaskets must be complete.
Editing: kunshanwl
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