节能砌块隐形密框复合墙抗震性能分析  

Seismic performance analysis of enegy-saving block&invisible multi-ribbed frame composite wall

作　　者：林强 李升才[1] 朱永甫 LIN Qiang;LI Shengcai;ZHU Yongfu(School of Civil Engineering,Huaqiao University,Xiamen 361021,China;Minnan University of Science and Technology,Fujian Engineering Research Center for Construction and Management of Green Building,Quanzhou 362700,China)

机构地区：[1]华侨大学土木工程学院,福建厦门361021 [2]闵南理工学院绿色建筑施工与管理福建省高校工程研究中心,福建泉州362700

出　　处：《地震工程与工程振动》2021年第4期109-119,共11页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(51578253);福建省科技计划引导性项目(2020Y0087);泉州市科技计划项目(2018C083R);华侨大学研究生科研创新基金项目(18011086004)。

摘　　要：以不同剪跨比1/2缩尺模型节能砌块隐形密框复合墙的拟静力试验为基础,利用ABAQUS软件对其进行非线性分析,重点研究墙体的滞回性能以及最终破坏结果,并验证有限元模型准确性。通过改变模型轴压比取值,了解轴压比对节能砌块隐形密框复合墙抗震性能的影响。结果表明:采用ABAQUS软件分析得到的模拟曲线与试验曲线整体吻合较好,且模拟得到的破坏结果同试验得到的破坏结果也相接近;轴压比对节能砌块隐形密框复合墙抗震性能有明显的影响,轴压比较高的模型,其破坏现象也较严重;随着轴压比的增加,节能砌块隐形密框复合墙的初始刚度、承载能力随之增加,但增加的幅度却随着轴压比的增加而减小;不同轴压比参数下墙体的位移延性系数均大于3.0,表明节能砌块隐形密框复合墙具有较好的抗震性能。Based on the quasi-static test of 1/2 scale energy-saving block&invisible multi-ribbed frame comp osite walls(EBIMFCW)with different shear-span ratios,the nonlinear analysis was carried out by using ABAQUS software,focusing on the hysteretic performance of the wall and the final failure results,and verifying the accuracy of the finite element model.By changing the value of axial compression ratio of the model,the influence of axial compression ratio on the seismic performance of EBIMFCW was understood.The results show that the simulation curves obtained by ABAQUS software are in good agreement with the test curves,and the failure results obtained by simulation are also close to the test results.The axial compression ratio has a significant impact on the seismic performance of energy-saving block invisible dense frame wall,and the failure phenomenon of the model with high axial compression ratio is also serious.With the increase of axial compression ratio,the initial stiffness and bearing capacity of EBIMFCW increase,but the increase range decreases with the increase of axial compression ratio.Under different axial compression ratio parameters,the displacement ductility coefficients of the wall are greater than 3.0,which indicates that the EBIMFCW has good seismic performance.

关 键 词：剪跨比 非线性分析 滞回性能 轴压比 抗震性能 

分 类 号：TU398.5[建筑科学—结构工程]