冷弯薄壁卷边槽钢压弯构件局部屈曲滞回性能研究  

STUDY ON HYSTERETIC BEHAVIOR OF LOCAL BUCKLING FOR COLD-FORMED THIN-WALLED LIPPED CHANNEL SECTIONS UNDER ECCENTRIC COMPRESSION

作　　者：王绎凯 郭彦利 杨嘉宝 周水 姚行友[2,3] WANG Yikai;GUO Yanli;YANG Jiabao;ZHOU Shui;YAO Xingyou(l.Yaohu Honors College,Nanchang Institute of Technology,Nanchang 330099,China;School of Architecture and Civil Engineering,Nanchang Institute of Technology,Nanchang 330099,China;Jiangxi Province Key Laboratory of Hydraulic and Civil Engineering Infrastructure Security,Nanchang Institute of Technology,Nanchang 330099,China)

机构地区：[1]南昌工程学院,瑶湖学院,南昌330099 [2]南昌工程学院,土木与建筑工程学院,南昌330099 [3]南昌工程学院,江西省水利土木工程基础设施安全重点实验室,南昌330099

出　　处：《低温建筑技术》2021年第12期88-92,共5页Low Temperature Architecture Technology

基　　金：国家自然科学基金资助项目(51868049);江西省自然科学基金项目(20181BAB206040);大学生创新创业训练计划项目(S202011319008)。

摘　　要：利用经试验验证的冷弯薄壁卷边槽钢压弯构件ABAQUS有限元模型对板件宽厚比和轴压比对其在常轴力、低周往复荷载作用下的屈曲和滞回性能影响进行分析。分析结果表明,宽厚比、轴压比对于构件初始刚度影响较小;构件屈曲后,宽厚比、轴压比越大,对构件滞回性能影响越显著。冷弯薄壁卷边槽钢压弯构件发生局部屈曲破坏仍具有良好的滞回性能和抗震性能。Using the ABAQUS finite element model of cold-formed thin—walled crimped channel steel compression bending members verified by experiments,the effects of width thickness ratio and axial compression ratio on the buckling and hysteretic properties of plates under constant axial force and low cyclic reciprocating load are analyzed.The results show that the width thickness ratio and axial compression ratio have little effect on the initial stiffness of the member.After the members buckling,the width thickness ratio and axial compression ratio have significant influence on the hysteretic behavior of members.Local buckling failure of cold-formed thin-walled crimped channel steel compression bending members still has good hysteretic and seismic performance.

关 键 词：冷弯薄壁型钢 槽形截面 局部屈曲 滞回性能 

分 类 号：TU317.1[建筑科学—结构工程]