建筑结构地震破坏阶段的刚度模型初步研究

英文篇名：Research on the MSK Model for Earthquake Damage Evaluation
中文刊名：中国海洋大学学报(自然科学版)
英文刊名：Periodical of Ocean University of China
作者：赵建 ; 焦双健 ; 张永华
英文作者：ZHAO Jian ; JIAO Shuang-Jian ; ZHANG Yong-Hua(1.College of Engineering Ocean University of China ; Qingdao 266100 ; China ; 2.ChiFeng Architecture Design & Research Institute ; Chifeng 024000 ; China)
中文关键词：MSK模型 ; MSP方法 ; 易损性分析 ; 震害预测
英文关键词：MSK model ; MSP method ; vulnerability evaluation ; seismic damage forecasting
出版日期：2006-12-15
机构：中国海洋大学工程学院;赤峰市建筑勘察设计研究院;
年：2006
期：S2
出版单位：中国海洋大学学报(自然科学版)

摘要

MSP(Multi-step pushover method)法是符合现行规范要求用来评估建筑结构破损状态的新方法。实践证明它具有快速、简便及计算精度较高的特点,已经在建筑结构的震害预测工作中得到广泛应用。在MSP法中,破损刚度MSK的变化受诸多因素的影响,还没有完全掌握其影响因素的变化规律。文中针对MSP法中结构破损阶段的推覆刚度MSK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结果进行对比,提出了改进的破损刚度模型。实例计算表明,文中提出的模型可用,分析误差小,有助于MSP法进一步完善。
The multi-step pushover method(MSP method) is a new earthquake damage evaluation method according with the current norm,which is proved to be a method of high efficiency,simplicity and accuracy.It has been widely used in civil engineering seismic damage forecasting.In the MSP method,the stiffness model(MSK) of a civil engineering building is affected by several factors which have not yet been completely realized.In this paper,an improved model is put forward by comparing with the nonlinear time-stepping method.The calculation results for some cases indicate that the new model put forward in this paper is practicable,and the analytical error is small.It can be concluded that the new model is suitable for the demand of civil engineering building and further improvement of the MSP method.

引文

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