内置约束拉杆横肋波纹钢-钢管混凝土组合柱轴压力学性能研究  

Study on axial compression properties of concrete-filled horizontal corrugated square steel tubular composite columns with restraint bars

作　　者：王城泉 夏雨 邹昀[3] 渠政 陈明 吴艺超 WANG Chengquan;XIA Yu;ZOU Yun;QU Zheng;CHEN Ming;WU Yichao(Department of Civil Engineering,Hangzhou City University,Hangzhou 310015,China;Zhejiang Engineering Research Center of Intelligent Urban Infrastructure,Hangzhou 310015,China;School of Environmental and Civil Engineering,Jiangnan University,Wuxi 214122,China;Shanghai Open Steel Structure Co.,Ltd.,Shanghai 200127,China)

机构地区：[1]浙大城市学院工程学院,杭州310015 [2]城市基础设施智能化浙江省工程研究中心,杭州310015 [3]江南大学环境与土木工程学院,无锡214122 [4]上海欧本钢结构有限公司,上海200127

出　　处：《建筑结构》2023年第16期38-43,共6页Building Structure

基　　金：江苏省自然科学基金资助项目(BK20180623);2018年科技厅社会发展面上项目(BE2018625);2016年江苏省建筑产业现代化示范基地项目。

摘　　要：为探究约束拉杆对横肋波纹钢-钢管混凝土组合柱轴压力学性能的影响,采用有限元软件ABAQUS数值仿真模拟和轴压试验分析了内置横向拉杆的横肋波纹钢-钢管混凝土组合柱的轴压性能,通过对比分析了内置横向拉杆的数量对横肋波纹钢-钢管混凝土组合柱的荷载-轴向应变曲线、延性、屈服荷载以及核心混凝土约束效应的影响规律。研究表明,内置横向拉杆能够增强对核心混凝土的约束效应,提高横肋波纹钢-钢管混凝土组合柱的轴压承载力和延性。In order to investigate the influence of restraint bars on the axial compressive mechanical properties of the concrete-filled horizontal corrugated square steel tubular composite columns with restraint bars,the finite element numerical simulation and axial compression test of the axial compression performance of the composite columns were carried out.The influences of the number of setting restraint bars on load-longitudinal strain curve,ductility,yield load and the core concrete constraint effect of concrete-filled horizontal corrugated square steel tubular composite column were analyzed.The study indicated that setting restraint bars can enhance the constraint effect on the core concrete and improve the axial bearing capacity and ductility of the composite column.

关 键 词：约束拉杆 横肋波纹钢-钢管混凝土组合柱 轴压试验 有限元分析 约束效应 

分 类 号：TU398[建筑科学—结构工程]