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近年来,地震区冶金厂房墙体围护结构,采用大型墙板日益增多。1976年7月28日唐山丰南地震,波及天津、北京。地震区冶金厂房受到了7～10度的地震作用。震后调查表明,大型墙板要比砖墙的抗震性能好得多。在6～7度震区,厂房顶部砖墙有不同程度的裂缝、外闪和局部倒塌;8～9度震区,砖墙大面积倒塌,有的厂房砖墙全部倒塌;而采用大型墙板的厂房基本完好。如天津钢厂750初轧厂,地处8度区,墙体上部
In recent years, large-scale wall plates have been used in the building envelope of metallurgical plants in earthquake areas. July 28, 1976 The Fengnan earthquake in Tangshan affected the cities of Tianjin and Beijing. Earthquake area metallurgical plants were affected by earthquakes of 7 to 10 degrees. Post-earthquake surveys have shown that large wall panels are much better than brick walls in terms of seismic performance. In the 6-7 degree earthquake zone, the top brick wall of the plant has different degrees of cracks, external flashes, and partial collapses; in the 8-9 degree earthquake area, the brick wall collapsed and some of the brick walls of the plant collapsed; The plant is basically intact. Such as Tianjin Steel Plant 750 blooming mill, located in the 8 degree zone, the upper wall