考虑徐变效应多腔双钢板混凝土组合剪力墙轴压性能研究  

Research on axial compression performance of multi-cavity double steel plate-concrete composite shear wall considering creep effect

作　　者：李霄龙 王鹏[1] 王永慧 许蔚[1] 李洛克[1] LI Xiaolong;WANG Peng;WANG Yonghui;XU Wei;LI Luoke(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China;City College,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]昆明理工大学城市学院,云南昆明650500

出　　处：《四川建筑科学研究》2025年第1期41-49,共9页Sichuan Building Science

基　　金：国家自然科学基金项目(51308269、52068068、51708486);云南省自然科学基金项目(202301AT070450、202201AT070110)。

摘　　要：为研究徐变作用下多腔双钢板混凝土组合剪力墙的轴压性能,基于弹性理论和按龄期调整的有效模量法(adjusted effective modulus method,AEMM),推导了多腔双钢板混凝土组合剪力墙长期变形计算公式。采用ANSYS软件建立了考虑徐变效应的多腔双钢板混凝土组合剪力墙轴压有限元模型,模拟结果与公式计算结果对比验证了公式的正确性,误差在6%以内。研究表明:徐变引起的应力重分布对构件有较大影响,徐变变形增量随着加载龄期的延长而减小,增大含钢率能有效降低多腔双钢板混凝土组合剪力墙的徐变变形。Based on the elastic theory and the age-adjusted effective modulus method(AEMM),a formula for calculating the long-term deformation of a multi-cavity double steel plate-concrete composite shear wall was derived to study the change of axial compression performance under creep.The finite element model of multi-cavity double steel plate-concrete composite shear wall under axial compression,considering creep effect was established by ANSYS software,and the simulation results were compared with the calculation results to verify the correctness of the formula,and the error is less than 6%.The results show that the redistribution of internal force caused by creep has a great influence on the member.The creep deformation increment decreases with the increase of loading age.Increasing steel content can effectively reduce the creep deformation of multi-cavity double steel plate-concrete composite shear walls.

关 键 词：组合剪力墙 轴压性能 徐变效应 数值模拟分析 

分 类 号：TU398.2[建筑科学—结构工程]