钢结构具有自重轻、施工快、可利用建筑空间大、平面布局灵活等优点,因而在大跨度工业厂房、公用建筑及高层建筑中获得愈来愈广泛的应用。 随着钢结构的广泛采用,带来了新的防火问题。钢结构虽然自身不会燃烧,但其抗火性能极差,在火灾情况下,钢结构温度上升很快,构件强度随之迅速下降而导致结构破坏。 The steel structure has the advantages of light weight, rapid construction, large available building space, and flexible layout, which has been increasingly used in large-span industrial plants, public buildings and high-rise buildings. With the widespread adoption of steel structures, new fire protection problems have been brought about. Although the steel structure itself does not burn, its fire resistance performance is extremely poor. In the case of fire, the temperature of the steel structure rises rapidly, and the strength of the component rapidly decreases, resulting in structural damage.