冷弯薄壁型钢组合截面构件研究现状

State of the Cold-formed Thin-walled Built-up Section Members

冷弯薄壁型钢组合截面构件以其灵活的组合形式和良好的力学性能在低层和多层住宅体系中被广泛应用,但相关的研究成果和设计规范仍较为缺乏。介绍了组合截面构件的特点和在工程中的应用,总结了此类截面构件的主要研究方法和规范设计建议,综述了国内外学者针对冷弯薄壁型钢组合截面构件的试验和理论研究现状,并指出了现今研究存在的不足和今后的发展方向。

Cold-formed thin-walled built-up section members have been widely used in low and mid-rise residential buildings due to its flexible shapes and good mechanic behavior,however,relating research achievements and design specifications are quite insufficient.Firstly,this paper introduces the basic characteristics and engineering applications of these types of built-up member,and then the main research methods as well as design guides are summarized.A state of the art review of recent experimental and theoretical research on built-up members is presented,both domestic and abroad.Finally,the major inadequacies and future research direction are pointed out.