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. In Beijing, Shanghai, Guangzhou, the first to use glass curtain wall of the city, curtain wall glass crash happen, 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.
The solution is to limit the use of hidden frame glass curtain wall above all, the glass curtain wall that must have passed quality assurance period is protected, if fence, green belt, hanging curtain is established around glass curtain wall, the glass that falls in case is injured and past pedestrian and vehicle. 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.
The glass curtain wall support structure fails
Not all the problems of the glass curtain wall are caused by the glass itself, and sometimes the failure of the curtain wall frame supporting the glass will also cause the glass curtain wall problems. 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 withstand the gravity in 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 design the corresponding curtain wall glass according to its anti-fatigue ability to prevent the long-term overload operation of the curtain wall facade.
Failure of glass curtain wall fastener fixture
All glass facades rely on fastener fixtures to hold them together and secure them to the building. But unforeseen flaws in the fastener fixtures can lead to serious structural problems or even falling curtain wall glass.
The solution is to install the glass curtain wall before the fastener is fixed for the necessary inspection, inspection qualified in order to install and use in the field. In addition, as for the curtain wall glass falling caused by the loosening of the fixing bolt, we use the nuts of special locks to lock the bolts in the actual construction process to prevent the bolts from slipping and failing, or use specific washers to ensure that the bolts will not fall off after fastening.
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Post time: Apr-24-2023
