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与混凝土结构相比,钢结构建筑具有强度高、质量轻、抗震性能好、施工速度快等优点,但是钢结构有一个不容忽视的缺陷,即抗火性能差。经验表明,当钢结构建筑未进行抗火设计且无任何保护措施时,一旦发生火灾,整个结构在极短时间内就会瞬时全部崩溃,因此,为防止钢结构在火灾情况下短时间内刚度迅速下降导致结构局部破坏或整体坍塌,而住宅作为一种最广泛的建筑形式,钢结构住宅作为一种重要的住宅结构形式,很可能在以后会有飞速发展,因此,在钢结构住宅外围护结构设计环节就要加以重视。
Compared with concrete structures, steel structures with high strength, light weight, good seismic performance, construction speed, etc., but the steel structure has a flaw that can not be ignored, that is, poor fire resistance. Experience has shown that when a steel structure is not designed for fire protection and without any protection measures, once the fire occurs, the entire structure will collapse instantaneously in a very short period of time. Therefore, in order to prevent the stiffness of the steel structure in a short period of time in case of fire The rapid decline leads to structural partial destruction or overall collapse, and residential as one of the most widely used form of construction, steel structure residential as an important form of residential structure, is likely to be rapid development in the future, therefore, in the steel structure housing Protection of structural design links should be taken seriously.