连续倒塌基本问题研究综述

Research review of basic problems of progressive collapse

连续倒塌是指偶然荷载作用下,结构发生初始局部破坏后,失去承重能力而产生的连续、不成比例倒塌.近年来,强震、恐怖袭击(9.11事件)等原因引起结构发生连续倒塌的重大事件频繁发生,促使这一领域的研究受到普遍关注.作为所有研究工作的基础,本文总结了建筑结构连续倒塌的基本概念、倒塌类型、倒塌原因及破坏特点,并从数值模拟方法和规范设计方法两方面归纳了连续倒塌问题的基本研究方法,以期对深入研究工作的开展打下基础.

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