破损结构地震反应简化分析法的单自由度破损模型研究
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摘要
MSP(Multi-step pushover method)法是一种弹塑性推覆方法,可以评估破损状态的建筑结构的地震反应。它以地震反应谱作为输入,根据结构的动力特性分配荷载,逐步推覆,得到破损结构的最大地震反应,简便实用。作者针对MSP法中破损模型的选择和改善问题进行了专门研究和探讨。通过与非线性时程法进行对比,首次提出适用于单自由度体系的破损模型。实例计算表明,本文提出的模型可用,分析误差小,有助于MSP法进一步完善。
Multi-step pushover method (MSP) is a new earthquake damage evaluation method according with current code, which is proved to be a method with high efficiency, simplicity and good accuracy. It has been widely used in civil engineering seismic damage forecasting . In MSP method, The stiffness model (MSK) of the civil engineering building is affected by several factors which have not yet been completely realized. In this paper, a nonlinear SDOF MSK model, based parallelogram hysteretic model is put forward. The error between MSP method and nonlinear time-stepping method is suitable to the demand of the civil engineering building.
Multi-step pushover method (MSP) is a new earthquake damage evaluation method according with current code, which is proved to be a method with high efficiency, simplicity and good accuracy. It has been widely used in civil engineering seismic damage forecasting . In MSP method, The stiffness model (MSK) of the civil engineering building is affected by several factors which have not yet been completely realized. In this paper, a nonlinear SDOF MSK model, based parallelogram hysteretic model is put forward. The error between MSP method and nonlinear time-stepping method is suitable to the demand of the civil engineering building.
引文
[1] GB／T19428-2003．抗震灾害预测及其信息管理系统技术规范．北京:中国标准出版社．2003．
[2]魏巍．几种PUSH-OVER分析方法的对比研究．中国地震局工程力学所研究生论文．2001年．
[3] WEI Wei, FENG Qimin and JIAO Shuangjian, Research on the Method of Evaluating Earthquake Disaster for Buildings, Progress in Safety Science and Technology, pp885-889, 2002,10.10-14. Tai' an, China.
[4]魏巍,冯启民．几种push-over分析方法对比研究．地震工程与工程振动．2002年04期．
[5]钟德理．基于GIS的城市建筑物震害预测研究．中国海洋大学研究生论文．2004年．
[6]钟德理,冯启民．基于地震动参数的建筑物震害研究．地震工程与工程振动．2004年05期．
[7]龙岩市区震害预测报告．中国海洋大学．2002年．
[8] WEI, Wei, JIAO Shuangjian, FENG Qimin, Earthquake damage evaluation of offshore platform using MSP method, Progress in Safety Science and Technology Volume 4, Proceedings of the 2004 International Symposium on Safety Science and Technology, 2004, p 2322-2327.
[9] JIAO Shuangjian, WEI Wei , ZHAO Jian, FENG QiMin , MSK model of Earthquake Damage Evaluation Method for SDOF Nonlinear System, ASIA Pacific symposium on safety 2005.
[10]GB50011-2001．建筑抗震设计规范．北京:中国建筑工业出版社．2002．
[2]魏巍．几种PUSH-OVER分析方法的对比研究．中国地震局工程力学所研究生论文．2001年．
[3] WEI Wei, FENG Qimin and JIAO Shuangjian, Research on the Method of Evaluating Earthquake Disaster for Buildings, Progress in Safety Science and Technology, pp885-889, 2002,10.10-14. Tai' an, China.
[4]魏巍,冯启民．几种push-over分析方法对比研究．地震工程与工程振动．2002年04期．
[5]钟德理．基于GIS的城市建筑物震害预测研究．中国海洋大学研究生论文．2004年．
[6]钟德理,冯启民．基于地震动参数的建筑物震害研究．地震工程与工程振动．2004年05期．
[7]龙岩市区震害预测报告．中国海洋大学．2002年．
[8] WEI, Wei, JIAO Shuangjian, FENG Qimin, Earthquake damage evaluation of offshore platform using MSP method, Progress in Safety Science and Technology Volume 4, Proceedings of the 2004 International Symposium on Safety Science and Technology, 2004, p 2322-2327.
[9] JIAO Shuangjian, WEI Wei , ZHAO Jian, FENG QiMin , MSK model of Earthquake Damage Evaluation Method for SDOF Nonlinear System, ASIA Pacific symposium on safety 2005.
[10]GB50011-2001．建筑抗震设计规范．北京:中国建筑工业出版社．2002．
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