[China Glass Net] Most of the curtain walls installed outside the masonry walls of buildings use non-transparent panels, such as frosted glass, granite, aluminum panels, etc., mainly for the purpose of architectural decoration effects. So what is the construction standard and acceptance method for the installed glass curtain wall?
1. Glass curtain wall construction quality requirements
(1) The curtain wall and the aluminum alloy components should be horizontal and vertical, the elevation is correct, the surface is not allowed to have mechanical damage (such as scratches, abrasions, indentations), and defects that need to be treated are not allowed.
(2) All exposed metal parts (pressing plates) of the curtain wall shall be flat from any angle, and no small deformation, corrugation, or recession or protrusion of the fasteners shall be allowed.
(3) The iron legs and the T-shaped groove shall be welded firmly after being fixed, and the gap between the contact surface of the concrete structure and the main structure shall not exceed lmm, and shall be solidified with galvanized steel plate. The connection between the iron legs of the ox leg and the curtain wall must be covered with a shockproof rubber pad. Steel welds welded at the construction site shall be coated with two anti-corrosive paints on site.
(4) The surface of the metal that is in contact with the masonry, plastering or concrete surface must be painted with asphalt paint and the thickness is greater than 100um.
(5) When the glass is installed, the edge and the bone must be kept in a gap, so that the gaps on the upper, lower, left and right sides are guaranteed. At the same time, to prevent contamination of the glass, especially on the side of the coating should pay special attention to prevent the coating from peeling off to form a painted face. The surface of the installed glass should be completely smooth and free from warping.
(6) The plugs of rubber strips and strips should be dense and comprehensive. The joints of the two rubber strips must be filled with sealant. When sealing with sealant, the seal should be full and uniform, and the appearance should be smooth and smooth.
(7) Inter-layer fireproof and thermal insulation mineral wool materials shall be packed tightly and shall not be missed.
2, glass curtain wall construction acceptance
(1) The acceptance of the curtain wall project shall be carried out after the completion of the building (excluding the secondary decoration), and the surface shall be cleaned before acceptance.
(2) The following information should be submitted when accepting the curtain wall project:
1 design drawings, documents, design modifications and material substitution documents;
2 material, component factory quality certificate, profile test report, structural silicone sealant compatibility and adhesion test report;
3 concealed project acceptance documents;
4 Construction installation self-test records.
(3) The quality of the curtain wall project shall be inspected according to the inspection and sampling inspection. A curtain wall is used as the inspection unit, and each curtain wall should be inspected.
(4) Inspection of the perception of curtain wall works shall be carried out according to the following eight requirements:
1 The frame of the curtain wall shall be vertical and horizontal; the joints of the curtain wall shall be straight and horizontal, the width of the joint shall be uniform, and meet the design requirements.
2 The variety, specification and color of the glass should be consistent with the design, the color should be basically uniform, and the aluminum alloy material should not have the phenomenon of alkali precipitation, mold and coating peeling off.
3 The installation direction of the glass should be correct.
4 The color of the metal material should be consistent with the design, the color should be basically uniform, and the aluminum alloy material should not have the phenomenon of stripping.
5 aluminum alloy decorative plate, the surface should be flat, there should be no defects such as deformation, fatigue or partial crushing that can be detected by the naked eye.
The upper and lower sides and side seals, settlement joints, expansion joints, anti-vibration joints and lightning protection systems of the 6 curtain wall shall comply with the specifications.
The cover of the hidden wall of the curtain wall should be neat and tidy.
8 curtain wall must not leak.
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