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[China Glass Net] The glass used in the glass curtain wall should be safety glass, mainly including tempered glass, laminated (glued) glass, insulating glass, fireproof glass, solar control coated glass and low-emission coated glass (Low-E). The specific selection requirements are as follows:
1. Safety glass should be used for the curtain wall. The thickness of the glass should not be less than 6mm. The thickness of the full glass curtain wall rib glass should not be less than 12mm.
2. When the glass curtain wall adopts heat-reflecting coated glass, vacuum magnetron cathode sputtering coated glass or on-line thermal spray coated glass should be used. The appearance quality and technical specifications of float glass used for heat-reflecting coated glass shall comply with the requirements of superior products or first-class products in the current national standard "Float Glass" (GB11614).
3. The insulating glass of the curtain wall should be sealed with two channels.
The insulating glass of the exposed frame curtain wall shall be made of polysulfide sealant and butyl sealant. The insulating glass of the semi-hidden frame curtain wall shall be made of silicone structural sealant and butyl sealant; the coated surface shall be the second of the insulating glass. Or on the third side.
4, the laminated glass of the curtain wall should be processed by polyvinyl butyral (PVB) film dry processing of laminated glass. The thickness of the interlayer film (PVB) of the point-supported glass curtain wall laminated glass shall not be less than 0.76 mm.
5, tempered glass should comply with the provisions of GB9963 "tempered glass".
6. All curtain wall glass should be edge treated.
Regarding the choice of curtain wall glass, let us continue to look at, what other suggestions?
1, the frame supports the glass curtain wall, should use safety glass
The frame supporting glass curtain wall includes two forms, a bright frame and a hidden frame. It is widely used in the current glass curtain wall engineering. The provisions of this article are for the safety of the curtain wall glass during installation and use.
Safety glass generally refers to tempered glass and laminated glass.
The oblique glass curtain wall refers to a curtain wall with an angle of intersection of less than 90 degrees and more than 75 degrees with the horizontal plane, and the broken glass particles also affect safety. Laminated glass is a non-scattering glass that can protect people from flow and should be used preferentially.
2. The panel glass supporting the glass curtain wall should be made of tempered glass.
The panel glass supporting the glass curtain wall shall be made of tempered glass and its products, otherwise the strength will not be met due to the stress concentration of the punched parts.
3, the use of glass rib-supported point-supported glass curtain wall, the glass rib should be tempered laminated glass
The glass rib-supported point-supported glass curtain wall has a rib glass supporting structure, and the stress concentration at the punching point is obvious, and the strength requirement is high; on the other hand, if the glass rib is broken, the entire curtain wall will collapse. Therefore, tempered laminated glass should be used.
4. Other public places
Significant warning signs should be set up in public areas with high staff mobility, in public areas for adolescents or young children, and in areas that are vulnerable to impact during use. The mobility of personnel is high, and the glass curtain wall of public places where young people or young children are active is easily crushed and impacted; in other buildings, the curtain wall that may be hit by normal activities is also likely to cause glass damage. In order to ensure the safety of personnel, the glass curtain wall in these cases should be made of safety glass. For the glass curtain wall that is vulnerable to impact, obvious warning signs should be set to avoid damage caused by accidental collision.
5. When there is no physical wall on the outer edge of the floor adjacent to the glass curtain wall, anti-collision facilities should be installed.
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