摘要:总结了罕遇地震作用下結构倒塌破坏的研究现状,重点分析了建筑物倒塌破坏的系统性和不
确定性,对比了不同的倒塌破坏准则和倒塌破坏分析方法,給出了建筑物倒塌的临界状态定义。研
究结果表明:现有的倒塌破坏准则无法准确定义结构的倒塌破坏;时程分析法更为精确,且较少地
引入了地震动随机性影响,更适于结构倒塌研究;建议的倒塌破坏区间能够更好地反映倒塌破坏特
性;塑性变形集中是框架倒塌的主要原因,应重视柱端塑性铰发育导致的结构整体性能退化;相关
研究成果可为定量研究建筑结构的倒塌破坏提供理论基础。
关键词:钢筋混凝土框架结构：地震塌破坏；不确定性：系统性;子结构:破坏准则：时程分析
中图分类号：TU375.4
文献标志码:A
Present Research Status and Countermeasure Analysis of Earthquake
Collapse Damage of RC Frame Structures
LIU Bo-quan, FU Guo
（School of Civil Engineering，Chang'an University, Xi'an 710061,Shaanxi, China)
Abstract: The present research status of structural collapse damage under rare earthquake was
summarized, and the systematicness and uncertainty of structural collapse damage were
emphatically analyzed. Meanwhile, the contrastive researches on the different failure criteria and
onalvsis methods were made.and the Drecise definition of the critical state structural collanse
damage was given. The research results show that the existing failure criteria cannot be used to
define the collapse of reinforced concrete (RC) structure precisely. Time history analysis method
is more accurate and suitable for collapse research owing to the introduction of a small amount of
qround motion randomness. The reconmended interval of collabse damagean better reflect the
characteristics of collapse damage. The concentration of plastic deformation is the principal factor
affecting the structural frame collapse, the overall structure performance degradation caused by
the development of plastic hinge in the column ends should be noted. The relevant research
results can provide a theoretical basis for quantitative research on the collapse damage of building
structure.
Key words: RC frame structure；earthquake；collapse damagey uncertainty；systematiceness；
sub-structure；failure criterion；time history analysis

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