短肢剪力墙损伤累积力学模型

英文篇名：Mechanical model of seismic damage cumulation for short-limb shear wall
中文刊名：世界地震工程
英文刊名：World Earthquake Engineering
作者：方运红 ; 李青宁 ; 张守军
英文作者：FANG Yunhong1 ; 2 ; LI Qingning1 ; ZHANG Shoujun1(1.School of Civil Engineering ; Xi'an University of Architecture & Technology ; Xi'an 710055 ; China ; 2.Architectural Design Ltd ; Shenzhen Machinery Institute ; Shenzhen 518027 ; China)
中文关键词：有限损伤域 ; 损伤累积 ; 弹塑性纤维 ; 有限塑性域 ; 损伤指标
英文关键词：finite plastic region ; damage cumulation ; elastic-plastic fiber ; limited damage region ; damage index
出版日期：2009-03-15
机构：西安建筑科技大学土木工程学院;深圳机械院建筑设计有限公司;
年：2009
期：01
出版单位：世界地震工程

摘要

根据短肢剪力墙受力损伤及破坏的特点和规律,提出了墙端有限塑性域和墙端有限损伤域的概念。利用墙条纵向协调与横向组合和墙条在材料层次上的本构关系,建立了短肢剪力墙考虑地震损伤累积的单元力学模型。推导出了短肢剪力墙考虑损伤累积的墙元柔度矩阵,并根据该模型编制了基于柔度法弹塑性纤维单元的非线性有限元分析程序。通过算例分析得出了比较理想的结果,说明方法应用的可行性。
Based on the deformation,stress,damage features and regularity of short-limb shear wall,the hypothesis of limited damage region and finite plastic region close to two ends is proposed.Taking advantage of longitudinal coordination and crosswise composition of stripe wall and material constitutive properties of the stripe wall,a mechanical model of seismic damage cumulation of the short-limb shear wall is established.The flexibility matrix of the short-limb shear wall with considering damage cumulation is set up.A nonlinear finite element analysis program is developed by using flexibility-based fiber element model.An example shows that the design method presented in this paper is feasible and gets ideal results.

引文

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