高强冷弯薄壁型钢作为门式刚架结构主材的探讨  

Discussion on High Strength Cold-formed Thin-walled Steel as the Main Material of Portal Frame Structure

作　　者：梁杰[1] 郝济[1] 孙秋颖[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《工程质量》2015年第10期51-53,共3页Construction Quality

摘　　要：结合工程实例,依据《冷弯薄壁型钢结构技术规范》(GB 50018-2002),分析了高强冷弯薄壁型钢板件弯曲变形的原因,并通过1∶1的模拟试验验证了分析结果。通过对规范适用性的探讨,以及高强冷弯薄壁型钢作为承重构件设计要点的讨论,提出高强冷弯薄壁型钢作为门式刚架结构主材使用时,由于其厚度较薄,必须加强对板件宽厚比等构造的限制,计算时应充分考虑板件宽厚比的影响,以保证结构安全使用。Based on the cases, according to ＂Technical Code of Cold-Formed Thin-Wall Steel Structures＂ （GB 50018-2002）,the reason of high strength cold-formed thin-walled steel elements bending deformation was analyzed, and the results of the analysis was verified by l：l simulation test. Through the discussion on applicability of the technical code and design points of the high strength cold-formed thin-walled steel as the main bearing component, the advice that it must strengthen the limit of width-to-thickness ratio and fully consider the effect of width-to-thickness ratio on the calculation was proposed. The advice was used in order to ensure the safety of structure.

关 键 词：高强冷弯薄壁型钢 宽厚比 板件 

分 类 号：TU328[建筑科学—结构工程]