Glass curtain wall construction to pay attention to what?
1. The characteristics of the open seal stone system 1.1 stone plate between the joints left l0mm gap, horizontal and vertical, beautiful and practical joints with no glue treatment, to avoid the appearance of plastic sealant yellow rubber metamorphism, dust pollution, impact Outside the finishes. 1.2 stone back with 1.5mm single-layer fluorocarbon sprayed aluminum or 3mm thick composite aluminum plate as a waterproof baffle layer, plywood connection with gray weathering adhesive sealing treatment. 1.3 waterproof baffle layer of aluminum plate to strengthen the horizontal fixed to prevent vibration noise, vertical column and aluminum plate with a screw connection to prevent loose. 1.4 Stone in the form of drilling holes, rather than the use of the usual gap openings, this approach is conducive to reducing the formation of stress due to the formation of the gap, reducing the loss rate of stone. 2. Principle of the stone stone curtain wall hanging hanging technology using column cone drill and special equipment in the back of the stone drilling, and can make the bottom of the hole, can ensure accurate drilling depth size. The bolt (Figure 1) is not swollen in the conical borehole without expansion force and is diffused at the specified torque, and the expansion ring is opened and filled at the bottom of the hole to form a convex combination (Figure 2). The anchor is fixed on the back and can not be seen from the outside. Installation of the wall on the wall and the mantle of the corner of the welding, back bolt with a bolt and the mullion connection, through the back bolt to the stone fixed on the horizontal frame.
Size requirements, the building should be in accordance with GBJ12-86 "building modulus harmonization standard" requirement, the horizontal extension of the building curtain wall modulus from 900mm start by 1 die to the maximum size of 6000mm. Its vertical expansion modulus from 2700mm start by 1 die to the maximum size of 6000mm. If the project needs to cross the above dimensions, it can be studied separately with the manufacturer.
Sealing material, glass and glass between the use of weathering silicone rubber seal, glass and metal structure between the use of structural silicone adhesive. Building point glass technology sealant only from the sealing effect, do not have to calculate the strength. In the use of glue and contact materials must be carried out before the compatibility test, performance testing qualified, and used within the validity period, strictly abide by the operating procedures to ensure the quality of construction.
The relationship between the characteristics of the curtain wall and the life of the building shall be as follows: The thickness of the main section of the column section shall meet the following requirements: The thickness of the opening part of the aluminum section shall not be less than 3.0mm and the thickness of the closed part shall not be less than 2.5 Mm; profile hole between the wall and the screw directly through the threaded connection, the local thickness should not be less than the nominal diameter of the screw. The thickness of the main section of the steel section shall not be less than 3.0mm. For the eccentric compression column, the section width ratio should be consistent with JGJ102-2003 "glass curtain wall engineering technical specifications" Article 6.2.1 of the corresponding provisions.
