0010010 nbsp; 0010010 nbsp;BuildU-shaped glass curtain wallThe energy-saving design of the outer protective structure is interlocked by elements such as window opening, orientation, shading and heat insulation materials, which affect the energy consumption of the building. The Celaya Research Office in Taiwan has conducted a study on the external protective structure built in Taiwan ’s office, and analyzed the energy consumption of each element of the U-shaped U-shaped glass curtain wall external protective structure. The analysis results are as follows:

①The window opening rate of the outer wall of the U-shaped glass curtain wall is an important factor for energy saving of the outer wall. Reducing the window opening area rate is an important energy-saving method. sense. However, for the U-shaped glass curtain wall seeking transparency, the only choice is to reduce the opening window area and strengthen the heat insulation design in the opaque place to achieve energy saving requirements.

②Outer shading and glass covering are the two most important factors for energy saving of outer walls. Glass raw materials and outer shading both affect the size of the covering rate. However, installing sunshades, shading shutters and other external shading is far more effective than changing glass materials. The glass material can be selected from high-reflectivity reflective glass and heat-absorbing glass (reflective glass with too high reflectivity will cause the nuisance of glare pollution), so the appropriate reflective glass should be selected.

③ The construction orientation element is the third element of the energy-saving design of the external wall (accounting for 13. 8%). Large-scale U-shaped glass curtain wall should be protected from the east and the west, and the long direction of the construction should be placed facing north and south.

Choosing the method of shading is not only a necessary method for the energy-saving design of U-shaped glass curtain walls, but also a necessary method for the construction and design of U-shaped glass curtain walls with higher standards.

The glass used for the U-shaped glass curtain wall should be safety glass, mainly including tempered glass, laminated (laminated) glass, insulating glass, fire-resistant glass, sunlight-controlled coated glass and low-e coated glass (LOW-E), etc. 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 6 mm. The thickness of all U-shaped glass curtain wall rib glass should not be less than 12 mm.

　　2. When U-shaped glass curtain wall uses heat reflective coated glass, vacuum magnetron negative sputtering coated glass or online thermal spray coated glass should be used. The appearance quality and technical indicators of float glass used for heat reflective coated glass should comply with the rules for superior or first-class products in the current Chinese standard "Float Glass" (GB 11614).

　　3. The insulating glass of the curtain wall should be double-sealed.

The hollow glass of the exposed frame curtain wall should use the hidden frame of polysulfide sealant and butyl sealant and the hollow glass of the semi-hidden frame curtain wall. {0}} or face 3.

　　4. The laminated glass of the curtain wall should be made of polyvinyl butyral (PVB) film dry processing. The thickness of the interlayer film (PVB) of point-supporting U-shaped glass curtain wall laminated glass should not be less than 0. 76 mm.

　　5. Tempered glass shall comply with the rules of GB 9963 "Tempered Glass".

　　6. All curtain wall glass should be marginally processed.