Curtain wall glass structural adhesive failure
Glass curtain wall because of the long-term adverse factors of the natural environment, such as wind, sun, rain, ultraviolet radiation, earthquake, so the glass curtain wall must have weather resistance, durability, corrosion resistance, as a bonding material of structural adhesive has become the focus of attention. How to determine a piece of glass for the failure of structural adhesive is arguably more difficult, but if you want to ensure the safety of personnel and vehicles to the replacement of glass curtain wall of large area is a huge spending, in the face of such situation, the owner in a dilemma.
Solution method: it is to limit the use of hidden frame glass curtain wall above all, must have protection to the glass curtain wall of quality assurance period, if fence, green belt, hanging curtain is established around glass curtain wall to prevent falling glass injury and past pedestrians and vehicles. Secondly, it is to use bright frame and semi-hidden frame glass curtain wall as far as possible, because even if the structural glue fails, because of the support and constraints of the frame, the probability of glass falling will be greatly reduced. At the same time, we should pay attention to the brand of domestic certification glue. In the past 20 years, China's building structure silicone glue has a series of certification parameters and standards. It is the industry in order to control the quality of structural glue products, unified performance standards, and improve the safety of glass curtain wall glue. Guangzhou Baiyun and Zhengzhou Zhongyuan, which appeared earlier in the domestic structural adhesive, have reached or exceeded the international standard in the performance and testing quality standards of structural adhesive.
The glass curtain wall support structure fails
Not all problems with glass curtain walls are caused by the glass itself. Sometimes the failure of the curtain wall structure supporting the glass will also cause the safety problems of the glass curtain wall. The frame structure used to support the glass is often the weak link of the glass curtain wall. If the initial design of the frame system is not reasonable, the frame structure can not bear the pressure of the building, and then deformation, and eventually lead to glass breakage.
The solution is to carry out anti-fatigue experiments on the frame structure in the design process, and then modern curtain wall design according to its anti-fatigue ability to prevent long-term overload operation of the frame. The rationality of the structure of the frame is inseparable from the application of aluminum profiles. Guangdong, as the birthplace of high-quality aluminum profiles in China, has many first-class brands; In the north, because of the innate advantages of Shandong province's electrolytic aluminum industry chain and resources, many famous brands have emerged.
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Post time: Sep-08-2023
