美国世贸大厦破坏分析

“9· 1 1”恐怖袭击中世贸大厦轰然倒塌 ,通过对世贸大厦结构特征及波音飞机性能参数研究 ,分析了世贸大厦倒塌原因。由于飞机的高速撞击导致了楼层破坏 ,引起油箱爆炸 ;油箱的强力爆炸扩大了破坏范围 ,导致燃油扩散 ;燃油的高温燃烧软化了主体结构 ,导致顶部塌落 ;顶部的突然塌落引起了连锁坍塌 ,导致整体破坏 ;基础的承载失衡打破了受力平衡 ,导致邻楼倒塌。

Analysis of the Collapse of World Trade Towers

World Trade Towers collapsed following the crashing by the hijacked planes on Sept.11, 2001. The reason of the collapse is concluded by analyzing structural features of World Trade Towers and technique parameter of the planes. The conclusions are as follows: the high speed crash of the planes resulting in the destruction of storey and explosion of the oil tank, the violent explosion of the oil tank resulting in the expansion of the destructive range and pervasion of oil, burning of oil in high temperature resulting in softening the structure and collapse of top bed,thesuddencollapseoftop bedresultinginaseries ofcollapseandcollapseofwholestructure,andunbalanceinfoundationresultinginthecollapseofthenearbuildings.