基于ABAQUS的混凝土剪力墙滞回性能的模拟
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(1 中信建筑设计研究总院有限公司, 武汉 430014; 2 土木工程安全与耐久教育部重点实验室清华大学土木工程系, 北京 100084)[摘要] ABAQUS非线性分析能力突出，经常用于分析建筑结构在罕遇地震作用下的抗倒塌性能，而结构中的关键抗侧力构件——混凝土剪力墙一般采用软件自带的损伤塑性本构(CDP)进行模拟，但关于验证该模型模准确性的研究却很少。本文详细介绍了该模型在模拟混凝土剪力墙的滞回性能时各参数的设置方法，并模拟了7片墙体的循环加载性能，计算结果与相应的试验结果吻合较好。本文研究表明，作者提出的CDP模型的参数设置方法能够很好的模拟混凝土剪力墙构件在循环荷载下的滞回性能，可用于整体结构分析中。[关键词] 剪力墙; 滞回性能; 有限元; ABAQUS; 损伤塑性本构中图分类号：TU375，O245 文献标识码：A 文章编号：1002-848X(2013)S2-0549-06作者简介：范浩，硕士研究生，Email：fanhao1956@gmail.com。Simulation of the hysteretic performance of the concrete shear wall in ABAQUSFan Hao 1, Wen Siqing 1, Dong Weiguo 1, Shi Gang 2(1 CITIC General Institute of Architectural Design and Research Co., Ltd., Wuhan 430014, China; 2 Key Laboratory of Civil Engineering Safety and Durability of China Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China)Abstract: ABAQUS is very powerful to solve nonlinear problems; therefore, it is often used to analysis the performance of the structure building under rare occurrence earthquake where the key member to resist seismic effect, i.e. concrete shear wall, is simulated by the built-in constitutive model named concrete damaged plasticity (CDP) model. However, research on the accuracy and reliability of this model has rarely been reported. In this paper, methods to determine the exact value of parameters in CDP model were discussed. Further, the cyclic performance of 7 pieces of concrete shear wall was simulated and it showed that the simulation results agreed well with those of the corresponding experiment. This paper proves that the methods approved by the author to set the values of the parameters in CDP model could reproduce the pinch effect of the concrete shear wall under cyclic loading, and it can be used to analysis the seismic performance of the whole building structure.Keywords: concrete shear wall; hysteretic performance; finite element analysis; ABAQUS; concrete damaged plasticity
