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在经济日益繁荣、高楼林立的大环境下,人们对防火防灾意识的淡薄以及某些建筑设计的防火缺陷,导致火灾焚毁建筑的灾害频繁发生。国内外相关研究部门通过大量的试验研究和理论分析,了解建筑物在火灾中、火灾后承载能力的变化及火灾的高温作用对结构可靠性的影响,取得了一系列的研究成果。但我国在建筑结构对火灾的应对方面的研究仍旧不够,由于结构设计的不合理,一些建筑在应对火灾的时候仍旧会遭到结构上的损坏,导致建筑内部承力构件快速失效,人力、物资方面也受到巨大的损失。
Under the environment of increasingly prosperous economy and high-rise buildings, the people’s awareness of fire prevention and disaster prevention as well as the fire protection defects of some architectural designs have led to the frequent occurrence of disasters caused by fire and burned buildings. The relevant research departments at home and abroad through a large number of experimental studies and theoretical analysis to understand the building in fire, load changes after the fire and the impact of high temperature fire on the structural reliability, and achieved a series of research results. However, the research on the response of building structure to fire is still not enough. Due to the unreasonable structural design, some buildings will still suffer structural damage in the event of a fire, resulting in rapid failure of internal load-bearing components, manpower, materials Aspects also suffered huge losses.