基于ANSYS的预制空心剪力墙抗震性能研究  

Research on seismic performance of fabricated hollow shear wall based on ANSYS

作　　者：周大凯 袁建伟 杨健 严成伟 ZHOU Dakai;YUAN Jianwei;YANG Jian;YAN Chengwei(College of Civil Engineering,Changsha University of Science and Technology,Changsha,410114,Hunan,China)

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410114

出　　处：《工程建设》2021年第3期18-24,共7页Engineering Construction

摘　　要：为研究钢筋混凝土预制空心剪力墙抗震性能,采用有限元分析软件ANSYS从空心率、空心位置、轴压比3个方面对比建立1片预制实心剪力墙模型和8片预制空心剪力墙模型进行低周往复荷载试验,分析试件承载能力、滞回曲线、骨架曲线、刚度退化、耗能能力等。结果表明:随着墙体空心率的提高,墙体承载力与刚度随之稍有降低,变形能力与延性系数则先增大后减小。墙体内应力传递路径会随空心位置的改变而改变,从而影响墙体的受力性能,其中墙内空心居中布置时的墙体受力性能优于偏心布置,且偏上布置受力性能优于偏下布置。轴压比的增加使墙体承载力明显提高、刚度增强,但会使墙体刚度退化加快且其延性降低。In order to study the seismic performance of fabricated hollow shear wall of reinforced concrete,the finite element analysis software ANSYS is used to compare and establish 1 model of prefabricated hollow shear wall and 8 models of prefabricated hollow shear wall from such aspects as hollow rate,hollow position,and axial compression ratio to carry out low-cycle reciprocating load test,and to analyze their load-bearing capacity,hysteresis curve,skeleton curve,stiffness degradation,energy consumption capacity,etc.The results show that,as the hollow rate of the wall increases,its bearing capacity and stiffness will decrease slightly,and its deformation capacity and ductility coefficient will increase first and then decrease.Its stress transfer path will change with the changing of the hollow position,thereby affecting its force performance.Among them,when the hollow center is arranged in the wall,its force performanceis superior to that of the eccentric layout,and the force performance of the upper layout is superior to that of the lower layout.The increase of the axial compression ratio significantly raises its bearing capacity and rigidity,but accelerates its deterioration of the rigidity and reduces its ductility.

关 键 词：预制空心剪力墙 抗震性能 ANSYS 非线性有限元模拟 

分 类 号：TU375[建筑科学—结构工程]