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建筑结构是建筑工程中支承各种荷载作用的骨架,是建筑物赖以生存的基础。而在实际工作过程中,建筑结构的耐火设计则往往被人们所忽视,导致部分耐火程度不高的建筑物在火灾情况下的垮塌。1993年5月13日,南昌市万寿宫商城二区商住楼(9层建筑、高32.4m)火灾,由于使用了预应力钢筋混凝土楼板等不耐火构件,导致了该建筑大部分的倒塌。为此,建筑结构的耐火设计应当引起我们足够的重视。 一、火灾对建筑结构的破坏作用 建筑物发生火灾后,随着建筑构件的燃烧和破
The architectural structure is the skeleton that supports various loads in the construction project, and is the basis for the building to survive. In the actual work process, the fireproof design of the building structure is often overlooked by people, resulting in the collapse of buildings with low fire resistance in the event of a fire. On May 13, 1993, the commercial and residential building (9-storey building, 32.4m high) in the second district of the Wanshou Palace shopping mall in Nanchang City used a non-refractory structure such as pre-stressed reinforced concrete floors, resulting in the collapse of most of the building. For this reason, the fireproof design of the building structure should cause us enough attention. First, the destructive effect of fire on building structures After a building fire, with the burning and breaking of building components