非线性剪力墙单元模型的改进及其应用

上海大学学报(自然科学版) ›› 2009, Vol. 15 ›› Issue (3): 316-319.

非线性剪力墙单元模型的改进及其应用

朱杰江郑琼田堃

1.上海大学土木工程系，上海 200072； 2.同济大学结构工程与防灾研究所,上海 200092

出版日期:2009-06-30 发布日期:2009-06-30
通讯作者: 朱杰江(1963～)，男，教授，博士生导师，博士，研究方向为结构设计、优化研究等.Email:zhujjt@126.com

Improved Element Model for Nonlinear Reinforced Concrete Walls and Its Application

SHU Jie-Jiang, ZHENG Qiong, TIAN Kun

1. Department of Civil Engineering, Shanghai University, Shanghai 200072, China; 2. Research Institution of Structural Engineering and Disaster Reduction, Tongji University, Shanghai 200092, China

Online:2009-06-30 Published:2009-06-30

摘要/Abstract

摘要：

现有的钢筋混凝土剪力墙模型虽然求解精度高，但计算量大，各参数取值困难，不适合大型结构的弹塑性计算.在已有钢筋混凝土剪力墙模型基础上，基于非线性梁单元模型，建立了一种便于非线性分析应用的剪力墙模型，即由承受轴力及弯矩的竖直杆单元与承受剪切变形的剪切子单元组合而成的墙单元模型,推导了该模型的单元刚度矩阵.最后给出一个算例，并与试验结果比较，表明加入剪切弹簧的非线性墙单元模型具有较好的计算精度.

关键词: 剪力墙；钢筋混凝土；非线性

Abstract:

Although the existing shearwall model has high numerical precision, computation complexity and difficulties in the sampling process of each parameter have limited its application. In this paper, a simple wall element model based on the nonlinear element model for beams by comparing the existing models is proposed. The proposed model is composed of beam element representing axial deformation and flexural deformation only, and shear element representing shearing only. The stiffness matrix of the proposed element is also established. An example is calculated and compared with the tested results, showings that the model test has relatively good accuracy.

Key words: shear wall; reinforced concrete; nonlinearity

中图分类号:

TU375

朱杰江郑琼田堃. 非线性剪力墙单元模型的改进及其应用[J]. 上海大学学报(自然科学版), 2009, 15(3): 316-319.

SHU Jie-Jiang, ZHENG Qiong, TIAN Kun. Improved Element Model for Nonlinear Reinforced Concrete Walls and Its Application[J]. Journal of Shanghai University（Natural Science Edition）, 2009, 15(3): 316-319.