冷弯型钢构件腹板压跛研究进展与趋势  

Research Progress and Trends of Cold-Formed Steel Structural Members Undergoing Web Crippling

作　　者：李海汀 战科江 王淼[1,2] 周锋[3] 赵金城[1,2] LI Haiting;ZHAN Kejiang;WANG Miao;ZHOU Feng;ZHAO Jincheng(School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure,Shanghai Jiao Tong University,Shanghai 200240,China;College of Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]上海交通大学上海市公共建筑和基础设施数字化运维重点实验室,上海200240 [3]同济大学土木工程学院,上海200092

出　　处：《建筑钢结构进展》2023年第5期1-12,52,共13页Progress in Steel Building Structures

基　　金：国家自然科学基金(52008243);上海市青年科技英才扬帆计划(20YF1419600)。

摘　　要：随着冷弯型钢在建筑行业中的应用和发展,对其构件破坏模式及相应承载力计算方法的研究不断深入。冷弯型钢构件板壁较薄,在支承反力或横向局部集中荷载作用下,未加劲腹板区域受到高密度局部集中荷载作用易发生腹板压跛破坏,在设计过程中应当充分重视。对冷弯型钢构件腹板压跛研究进展进行了总结,阐述了冷弯型钢构件腹板压跛研究的3个发展阶段,同时,归纳了各国冷弯型钢结构设计规范中有关腹板压跛的相应条例,指出了目前腹板压跛研究领域亟待解决的关键问题,并对冷弯型钢构件腹板压跛研究趋势予以展望。Cold-formed steel structures are increasingly applied in civil engineering constructions,which advances the research on the failure modes of cold-formed steel structural members and the corresponding design methods.Cold-formed steel members commonly adopt slender cross-sections.Therefore,web crippling may occur in such members when they are undergoing high localized forces or reactions.This should be carefully considered in the design processes.In this paper,research progress of cold-formed steel structural members undergoing web crippling is summarized.Three development stages of relevant research are introduced.Meanwhile,current design provisions in various international and national specifications are summarized.Furthermore,future research directions are outlined in this paper to advance the investigations in this specific research area.

关 键 词：冷弯型钢构件 腹板压跛 局部集中荷载 设计方法 研究进展 

分 类 号：TU391[建筑科学—结构工程]