黄秋昊, 黄盛楠, 陆新征, 胡皓宇, 汪家继. 高层建筑围护结构地震破坏导致次生灾害的初步研究[J]. 工程力学, 2013, 30(增刊): 94-98. DOI: 10.6052/j.issn.1000-4750.2012.05.S095
引用本文: 黄秋昊, 黄盛楠, 陆新征, 胡皓宇, 汪家继. 高层建筑围护结构地震破坏导致次生灾害的初步研究[J]. 工程力学, 2013, 30(增刊): 94-98. DOI: 10.6052/j.issn.1000-4750.2012.05.S095
HUANG Qiu-hao, HUANG Sheng-nan, LU Xin-zheng, HU Hao-yu, WANG Jia-ji. A PRIMARY STUDY ON THE SECONDARY DISASTERS INDUCED BY THE DAMAGE OF HIGH-RISE BUILDING ENVELOPS UNDER EARTHQUAKE[J]. Engineering Mechanics, 2013, 30(增刊): 94-98. DOI: 10.6052/j.issn.1000-4750.2012.05.S095
Citation: HUANG Qiu-hao, HUANG Sheng-nan, LU Xin-zheng, HU Hao-yu, WANG Jia-ji. A PRIMARY STUDY ON THE SECONDARY DISASTERS INDUCED BY THE DAMAGE OF HIGH-RISE BUILDING ENVELOPS UNDER EARTHQUAKE[J]. Engineering Mechanics, 2013, 30(增刊): 94-98. DOI: 10.6052/j.issn.1000-4750.2012.05.S095

高层建筑围护结构地震破坏导致次生灾害的初步研究

A PRIMARY STUDY ON THE SECONDARY DISASTERS INDUCED BY THE DAMAGE OF HIGH-RISE BUILDING ENVELOPS UNDER EARTHQUAKE

  • 摘要: 近年来,我国在众多城市的中心地区建设了很多高层和超高层建筑。这些建筑物出于建筑外观考虑,大量采用玻璃幕墙等围护结构。一旦因地震导致围护结构破坏脱落,可能会造成严重的次生灾害。结构层间位移角过大是导致建筑物围护结构破坏的主要原因。因此,该文认为当层间位移角超过破坏临界层间位移角1/300时,会有玻璃幕墙围护结构破坏,并以一定的初速度飞出。基于高层建筑弹塑性时程分析的结果,计算得出围护结构脱落可能导致的伤害范围,并建议其安全避难距离,其成果可供地震逃生及避难研究参考。

     

    Abstract: Many high-rise and super high-rise buildings have been constructed in the city centers of China. Due to the architecture requirement, glass curtain is widely used in high-rise buildings. If the glass curtain falls down from the high-rise building due to earthquake, serious secondary disaster may occur. The glass curtain damage is mainly induced by the large storey drift angle of a structure. In this paper, the glass curtain damage is considered when the storey drift angle exceeds the critical deformation, which is followed by the falling down of the fragments with a certain velocity. Based on the elasto-plastic time-history analysis results of a high-rise building, the injure range of glass curtain falling is predicted and the evacuation distance is suggested, which provides a reference for the earthquake evacuation research.

     

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