RC框剪结构考虑扭转的抗连续性倒塌的Pushover分析
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摘要
近年来,随着倒塌事故的频繁发生,结构的抗连续倒塌问题已经成为严重影响公共安全的重要问题。本文参考DOD2009提供的流程,采用拆除构件法研究了两栋不同布置形式的15层RC框剪结构(分别考虑扭转作用和不考虑扭转作用),并基于有限元软件MIDAS/Gen对其进行了非线性静力分析,通过塑性铰的发展过程及拆柱前后内力对比来分析规则结构和不规则结构的抗连续倒塌性能。
Recently, with the frequent occurrence of collapse incidents, the progressive collapse resistance of structures has been an important matter which could influence public safety greatly. In this article, dismantling component methodis has been to adopted to study the 15 story RC frame-shear wall structure in two buildings(with or without torsional action taken into consideration respectively) by referencing the flows provided by DOD2009.And the nonlinear static analysis is conducted to the two modelsbased on the finite element software MIDAS/Gen Then, the progressive collapse resistance performance of regular structure and irregular structureis analyzed by the development process of plastic hingesand the inner force comparison before and after the columns dismantlement basing on finite element software MIDAS/Gen.
Recently, with the frequent occurrence of collapse incidents, the progressive collapse resistance of structures has been an important matter which could influence public safety greatly. In this article, dismantling component methodis has been to adopted to study the 15 story RC frame-shear wall structure in two buildings(with or without torsional action taken into consideration respectively) by referencing the flows provided by DOD2009.And the nonlinear static analysis is conducted to the two modelsbased on the finite element software MIDAS/Gen Then, the progressive collapse resistance performance of regular structure and irregular structureis analyzed by the development process of plastic hingesand the inner force comparison before and after the columns dismantlement basing on finite element software MIDAS/Gen.
引文
[1]邢甫庆,陈道政.四层RC框架结构抗连续性倒塌分析[J].安徽建筑工业学院学报,2009,17(5):31-35.
[2]李易,陆新征,叶列平,等.基于Pushdown分析的RC框架抗连续倒塌承载力研究[J].沈阳建筑工程学院学报(自然科学版),2011,27(1):10-18.
[3]GB50010-2010,混凝土结构设计规范[S].北京:中国建筑工业出版社,2012.
[4]GB50009-2012,建筑结构荷载规范[S].北京:中国建筑工业出版社,2012.
[5]Department of Defense.Unified facilities criteria:Design of building to resist progressive collapse[S].Washington D,C,2009.
[6]张鹏,陈宝旭.基于GSA指南的RC框架结构抗连续倒塌的线性静力分析[J].四川建筑科学研究院,2014,40(01):114-117.
[7]孙春蕾,傅光耀,付善春.12层框架角柱与边柱连续倒塌破坏效应分析[J].南昌大学学报(工科版),2014,36(3):241-246.
[2]李易,陆新征,叶列平,等.基于Pushdown分析的RC框架抗连续倒塌承载力研究[J].沈阳建筑工程学院学报(自然科学版),2011,27(1):10-18.
[3]GB50010-2010,混凝土结构设计规范[S].北京:中国建筑工业出版社,2012.
[4]GB50009-2012,建筑结构荷载规范[S].北京:中国建筑工业出版社,2012.
[5]Department of Defense.Unified facilities criteria:Design of building to resist progressive collapse[S].Washington D,C,2009.
[6]张鹏,陈宝旭.基于GSA指南的RC框架结构抗连续倒塌的线性静力分析[J].四川建筑科学研究院,2014,40(01):114-117.
[7]孙春蕾,傅光耀,付善春.12层框架角柱与边柱连续倒塌破坏效应分析[J].南昌大学学报(工科版),2014,36(3):241-246.