The dangers of the glass curtain wall mainly come from the bursting and falling off of the glass, and the unreasonable reflection of the sunlight. The cracking of the glass may cause the glass fragments to fall off and hurt people. It may also cause the whole glass to fall off and hurt people. The unreasonable reflection of sunlight, especially the reflection of strong light by high reflective glass is also one of the unsafe factors. Due to the shedding of the glass, and sometimes the detachment of the entire curtain wall, the main reason of the accident is the improper use of the glass or the improper installation of the glass. Major cities such as Beijing, Shanghai, and Shenzhen are developing safety regulations to regulate the use of glass curtain walls.
1.Analysis of the causes of glass bursting and falling off
The main reason for the glass to burst and fall off is the problem of improper glass selection or glass installation. First, the glass is fragile. There are many micro-cracks on the surface of the glass, which causes the strength of the glass to be much lower than its theoretical strength. It is easy to cause the glass to burst when it is used. Secondly, the glass exposes the sharp edge at the broken edge. Or sharp corners are also very easy to cause harm to people; third, glass, especially glass curtain walls are generally installed in more exposed parts, easy to breakage.
In addition to the effect of artificial external force, the explosion of glass has the following aspects: First, the thermal cracking of glass, especially the heat-absorbing glass and heat-reflecting glass form an uneven temperature field on the surface of the glass when exposed to sunlight. Thereby forming a thermal stress in the glass, when the thermal stress exceeds the allowable range of the strength of the glass, and bursting; second, after the wind is subjected to the wind load, that is, the wind pressure, the force of the wind pressure exceeds the allowable range of the strength of the glass to burst. Third, the self explosion of the tempered glass, fourth, the glass is installed with large stresses, and the glass also bursts with time; fifth, the glass is damaged or cracked before or during installation. When it is subjected to other external impacts, it bursts; sixth, it breaks or bursts under the influence of other factors such as ear
linkscreen97 is a member of the community since October 2020.