陆新征, 林旭川, 叶列平, 李 易, 唐代远. 地震下高层建筑连续倒塌数值模型研究[J]. 工程力学, 2010, 27(11): 64-070. DOI: 10.6052/j.issn.1000-4750.2010.02.0101
引用本文: 陆新征, 林旭川, 叶列平, 李 易, 唐代远. 地震下高层建筑连续倒塌数值模型研究[J]. 工程力学, 2010, 27(11): 64-070. DOI: 10.6052/j.issn.1000-4750.2010.02.0101
LU Xin-zheng, LIN Xu-chuan, YE Lie-ping, LI Yi, TANG Dai-yuan. NUMERICAL MODELS FOR EARTHQUAKE INDUCED PROGRESSIVE COLLAPSE OF HIGH-RISE BUILDINGS[J]. Engineering Mechanics, 2010, 27(11): 64-070. DOI: 10.6052/j.issn.1000-4750.2010.02.0101
Citation: LU Xin-zheng, LIN Xu-chuan, YE Lie-ping, LI Yi, TANG Dai-yuan. NUMERICAL MODELS FOR EARTHQUAKE INDUCED PROGRESSIVE COLLAPSE OF HIGH-RISE BUILDINGS[J]. Engineering Mechanics, 2010, 27(11): 64-070. DOI: 10.6052/j.issn.1000-4750.2010.02.0101

地震下高层建筑连续倒塌数值模型研究

NUMERICAL MODELS FOR EARTHQUAKE INDUCED PROGRESSIVE COLLAPSE OF HIGH-RISE BUILDINGS

  • 摘要: 连续倒塌是由局部薄弱层或薄弱区域而导致的整体结构倒塌,是地震下结构最常见的一种破坏模式。理论上,结构设计应避免在地震下发生倒塌破坏,但对结构倒塌行为的研究有利于更好地理解结构倒塌机理并寻找有效的抗倒塌方法。倒塌过程与整体结构体系关系紧密,因而数值模拟成为研究倒塌问题的主要手段。该文开发了可以模拟复杂结构倒塌的程序,通过将数值分析结果与试验进行比较,说明数值模型可较好地模拟结构构件的各种极端非线性行为。采用建议的数值模型对两个实际结构进行了分析,分析结果对研究结构在地震下的破坏倒塌机理具有参考意义。

     

    Abstract: Progressive collapse is defined as the collapse of the whole building due to local weak stories or weak zones. Though collapse should theoretically be avoided for any building under any earthquake, it is necessary to study the collapse behavior of buildings to acquire a better understanding of the collapse mechanism and to find efficient methods to prevent it. The collapse process highly depends on the feature of the whole structural system, so numerical simulation becomes a major method to study it. With the numerical program developed by the authors for the collapse simulation of complicated structures, the highly nonlinear behavior of structural elements can be properly simulated. Two real buildings are analyzed to study the failure mechanism of the structure. The models proposed are reasonable to study the seismic collapse mechanism of high-rise buildings.

     

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