轻钢结构厂房因其相对钢筋混凝土结构多方面的明显优势而使用广泛,但其对火灾的敏感度较高;而混凝土结构相对来说对火灾的敏感度较小,其耐火程度高不至于在短时间内垮塌,这就为救灾争取到宝贵时间,也尽可能地减少了火灾带来的损失;因此主体结构为混凝土排架、屋面采用钢结构的工业厂房应运而生。 Light steel structure plant because of its relative advantages of reinforced concrete structures in many aspects of the obvious advantages and widely used, but its sensitivity to fire higher; and concrete structures are relatively less susceptible to fire and its high fire resistance is not in the This collapsed in a short period of time, which secured valuable time for disaster relief and also reduced the losses caused by the fire as much as possible. Therefore, the main structure was a concrete rack, and industrial plants with steel roofing came into being.