组合截面冷弯薄壁型钢结构研究进展  

RESEARCH PROGRESS OF COMPOUND SECTION COLD-FORMED THIN-WALL STEEL STRUCTURES

作　　者：陈明[1] 黄骥辉 赵根田[1] 

机构地区：[1]内蒙古科技大学土木工程学院,包头014010

出　　处：《工程力学》2016年第12期1-11,共11页Engineering Mechanics

基　　金：国家自然科学基金项目(51368043);内蒙古科技大学创新基金项目(2016YQL10)

摘　　要：冷弯薄壁型钢房屋抗震性能优越,适合工业化建造,在国内外建筑行业已占有一席之地,符合国家"十三五"规划对房屋建筑发展提出的新要求。该文对国内外在冷弯薄壁型钢房屋受力性能的研究成果和相关规范的设计规定进行了全面的综述,发现传统冷弯薄壁型钢房屋在传力机制、受力构件截面种类等方面的不足,提出新型组合截面的冷弯薄壁型钢"非盒子"式的框架结构体系,总结该体系中受力构件、节点以及整体框架受力性能的研究进展,给出了组合柱稳定承载力、节点极限弯矩和初始刚度的计算公式。最后对该类组合截面冷弯薄壁型钢框架结构体系今后需要深入研究的问题提出了建议。Cold-formed thin-walled steel buildings are characterized by superior seismic behavior and suitable for industrialized construction. These features make it have a place in the construction industry at home and abroad. Meanwhile, it meets the new requirements of China＇s ‘The thirteenth Five-Year Plan＇ for the development of building construction. Researches and design codes on the mechanical performance of cold-formed thin-walled steel buildings were comprehensively reviewed in this paper. Some deficiencies are found in traditional cold-formed thin-walled steel buildings in load-transfer mechanism and member section type. The ‘non-box＇ type frame system using cold-formed thin-walled steel compound section was put forward. Summarizing the research progress in mechanical performance of the member, joint, and the overall frame, this paper present formulas of the composite column stability capacity, joint ultimate moment and joint initial stiffness. Finally, some future researches on the compound section cold-formed thin-walled steel frame system are proposed.

关 键 词：冷弯薄壁型钢 组合截面 框架结构 组合柱 节点 受力性能 

分 类 号：TU391[建筑科学—结构工程]