强震后“北川废墟”不同结构形式损害原因分析
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摘要
通过在"北川废墟"的实地考察,分别从地质灾害、结构工程、市政工程等三个方面详细记录了地震灾害对城市毁灭性的影响,并着重阐述了不同结构形式的破坏特征,简要分析了建筑物破坏以及倒塌的原因.最后,说明了我国现行《建筑抗震设计规范》(GB 20011—2001)的合理性、适用性以及存在的问题,可为建筑结构抗震设计与理论完善和修正提供参考.
Based on the field survey to the Beichuan Seismic Ruins,several aspects including geologic hazard,structural engineering collapse and municipal engineering damage are detail recorded.The failure characters of the different structural types are expounded comprehensively;and then the reasons of seismic damages are analyzed respectively;the rationality and the applicability of the current code for seismic design are proved,the problems are also purposed according to the damage characters analysis.This paper provides reference for verification to seismic design and theoretical analysis.
Based on the field survey to the Beichuan Seismic Ruins,several aspects including geologic hazard,structural engineering collapse and municipal engineering damage are detail recorded.The failure characters of the different structural types are expounded comprehensively;and then the reasons of seismic damages are analyzed respectively;the rationality and the applicability of the current code for seismic design are proved,the problems are also purposed according to the damage characters analysis.This paper provides reference for verification to seismic design and theoretical analysis.
引文
[1]GB 50011—2001,建筑抗震设计规范[S].GB 50011—2001,Standard Seismic Design Code of Building[S].
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[4]宣纲,顾祥林,吕西林.强震作用下混凝土框架结构倒塌过程的数值分析[J].地震工程与工程振动,2003,23(6):24-30.XUAN Gang,GU Xiang-lin,LV Xi-lin.Numerical Analysis for the Collapse of Concrete Frames Under Earthquake[J].Earthquake En-gineering and Engineering Vibration,2003,23(6):24-30.
[5]王强,吕西林.框架结构在地震作用下倒塌的离散单元法仿真分析[J].地震工程与工程振动,2006,26(6):77-82.WANG Qiang,LV Xi-lin.Numerical Analysis for Collapse Process of RC Frame Structures Subjected to Strong Earthquakes[J].Earth-quake Engineering and Engineering Vibration,2006,26(6):77-82.
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[2]秦东.钢筋混凝土桥墩横向地震破坏与倒塌的计算机仿真[D].上海:同济大学,2000.QIN Dong.Computer Simulation of the Reinforced Concrete Pier’s Damage and Collapse Due to Transverse Earthquake[D].Shanghai:Tongji University,2000.
[3]顾祥林,黄庆华,吴周偲.钢筋混凝土柱考虑损伤累积的反复荷载-位移关系分析[J].地震工程与工程振动,2006,26(4):68-74.GU Xiang-lin,HUANG Qing-hua,WU Zhou-chai.Analysis of Load-Displacement Relationship for RC Columns Under Reversed LoadConsidering Accumulative Damage[J].Earthquake Engineering and Engineering Vibration,2006,26(4):68-74.
[4]宣纲,顾祥林,吕西林.强震作用下混凝土框架结构倒塌过程的数值分析[J].地震工程与工程振动,2003,23(6):24-30.XUAN Gang,GU Xiang-lin,LV Xi-lin.Numerical Analysis for the Collapse of Concrete Frames Under Earthquake[J].Earthquake En-gineering and Engineering Vibration,2003,23(6):24-30.
[5]王强,吕西林.框架结构在地震作用下倒塌的离散单元法仿真分析[J].地震工程与工程振动,2006,26(6):77-82.WANG Qiang,LV Xi-lin.Numerical Analysis for Collapse Process of RC Frame Structures Subjected to Strong Earthquakes[J].Earth-quake Engineering and Engineering Vibration,2006,26(6):77-82.
[6]Utagawa N,Kondo I,Yoshida N.Simulation of Demolition of Reinforced Concrete Building by Controlled Explosion[J].Microcomput-ers in Civil Engineering,1992(7):151-159.
[7]苗吉军,顾祥林,张伟平,等.地震作用下砌体结构倒塌反应的数值模拟计算分析[J].土木工程学报,2005,38(9):45-52.MIAO Ji-jun,GU Xiang-lin,ZHANG Wei-ping,et al.Numerical Simulation Analysis for the Collapse Response of Masonry StructuresUnder Earthquakes[J].Journal of Civil Engineering,2005,38(9):45-52.
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