建筑幕墙在我国的兴起已有20余年的历史。某些工程由于钢材材质低劣、焊接缺陷、涂装不足、幕墙骨架承载力不足、变形过大或与主体结构连接不良等。在狂风暴雨或烈日高温作用下,破坏脱落的危险性增大、渗漏增多,甚至在平常的日子里也有玻璃、石板掉落,危及过往行人。一、钢材材质低劣由于构件式幕墙骨架(金属框架)多采 Building curtain wall in our country has more than 20 years of history. Some projects due to poor steel material, welding defects, lack of coating, lack of bearing capacity of the curtain wall skeleton, excessive deformation or poor connection with the main structure. Under the effect of stormy or hot day heat, the danger of vandalism increases, leakage increases, and even glass and stone fall on ordinary days, jeopardizing past pedestrians. First, the poor steel material As the component curtain wall skeleton (metal frame) mining