大跨度网架结构建筑火灾中坍塌原因及火灾扑救措施探究  

Study on the causes of collapse and fire fighting measures in large-span grid structure building fire

作　　者：满春超 Man Chunchao(Jiaxing Municipal Fire and Rescue Brigade,Zhejiang Jiaxing 314100)

机构地区：[1]浙江省消防救援总队嘉兴支队,浙江嘉兴314100

出　　处：《今日消防》2023年第11期50-53,共4页

摘　　要：由于建筑结构的特殊性和使用方面的需要,且钢结构具有自重轻、结构性能好、机械化程度高等多项优点,大跨度网架结构建筑成为现代常见的建筑形式。但因钢材本身耐火性能较差,在高温作用下诸如弹性模量、屈服强度之类的性能参数会明显降低,再加上建筑本身人员密度大、内部结构复杂,一旦发生火灾,极易造成群死群伤恶性事件。现主要针对大跨度网架结构建筑进行研究,结合典型火灾案例探寻大跨度网架结构建筑在火灾中发生坍塌的规律,并结合钢材在火灾中的潜在危险,提出火灾扑救措施。Due to the particularity of the building structures and the needs of use,and the steel structure has many advantages,such as light weight,good structural performance,and high degree of mechanization,large-span grid structure buildings have become a common building form in modern times.However,due to the poor fire resistance of steel itself,the performance parameters such as elastic modulus and yield strength will be significantly reduced under high temperature.Coupled with the high density of personnel and complex internal structure of the building itself,once a fire occurs,it is very easy to cause mass death and casualty.The paper mainly studies largespan grid structure buildings,combines typical fire cases to explore the law of collapse of large-span grid structure buildings in fires,and proposes fire fighting measures based on the potential danger of steel in fires.

关 键 词：网架结构 钢结构 火灾 坍塌规律 扑救措施 

分 类 号：TU998.1[建筑科学—市政工程]