PTED框架基于IDA方法失效模式识别

英文篇名：RECOGNITION OF FAIURE MODES FOR POST-TENSIONED ENERGY DISSIPATING FRAME BASED ON IDA METHOD
中文刊名：低温建筑技术
英文刊名：Low Temperature Architecture Technology
作者：张百涛 ; 孙巍巍 ; 蔡小宁 ; 卢赛 ; 赵志强
英文作者：ZHANG Bai-tao ; SUN Wei-wei ; CAI Xiao-ning ; LU Sai ; ZHAO Zhi-qiang ; Department of Civil Engi. ; Nanjing Univ. of Science and Technology ; School of Civil Engi. ; Huai Hai Institute of Technology
中文关键词：预制 ; 预应力 ; 框架 ; IDA ; 失效模式 ; Open SEES
英文关键词：precast ; prestressed ; frame ; IDA ; failure modes ; Open SEES
出版日期：2014-11-28
机构：南京理工大学土木工程系;淮海工学院土木工程学院;
年：2014
期：11
出版单位：低温建筑技术

摘要

为了进一步研究后张预应力装配混凝土框架(post-tensioned energy dissipating,PTED框架)在不同地震动记录下的失效模式,对该结构进行了增量动力分析(IDA)。以Open SEES软件为平台,建立了四层三跨PTED框架非线性分析模型,选取三条代表性的地震动记录对其进行IDA分析,得到了三种不同的IDA曲线。结果表明:预应力筋提供良好的自复位能力;角钢提供良好的耗能能力;不同地震动记录下,PTED结构呈现三种不同的失效模式。
To further study the failure modes for the post-tensioned precast prestressed precast concrete frame( post-tensioned energy dissipating,simplified as PTED frame),the Incremental Dynamic Analysis to the PTED frame were carried out( simplified as IDA). The nonlinear analytical model of fourstorey and three-span was constructed by using Open SEES software. Three representative records of ground motion were selected as the input of the IDA anslysis. Three kinds of IDA curves were obtained.The results shows that,the prestressing tendons provided self-centering capability,The angle steels provided dissipated energy capability. Three different failure modes of PTED frame were obtained under different ground motion records.

引文

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