大板结构抗连续倒塌问题(上)

A Study on Progressive Collapse Prevention of Large Panel Structures

本文从国内外偶然事故发生的频率和连续倒塌实例分析出发,结合我国大板建筑的结构特点,对大板建筑发生连续倒塌的可能性及倒塌方式,进行了对比分析,对其局部破坏后的受力机制,进行了深入地分析研究,在此基础上,总结归纳出防止大板结构连续倒塌的三项宏观措施,提出了包括结构布置、计算方法、构造要求等系统的综合建议。

The paper made a comparative study on the progressive collapse possibility and types of large panel structures based on the frequency of accidents, at home and abroad, and sample analysis of progressive collapse, as well as the structural features of Chinese large panel buildings. Besides, the structural mechanism after local failure was also studied analytically. Finally, three measures,which prevent large panel structures from progressive collapse, have been summarized, and the practical design recommendations, including the structural arrangement, calculation methods and construction requirements etc., have been presented in the paper.