（1 西安建筑科技大学，西安 710055; 2 中国建筑标准设计研究院，北京 100044）
［摘要］对壁厚为1mm的冷弯薄壁卷边槽钢的受弯承载力性能进行了试验研究。共完成了两种截面、三种不同跨度的13根简支梁试件的试验。将试件的试验承载力与采用我国现行标准《冷弯薄壁型钢结构技术规范》(GB50018—2002)规定计算结果作了比较。对比结果表明，按我国规范GB50018—2002规定计算厚度小于2mm冷弯薄壁型钢受弯构件承载力是可行的，试验结果均高于规范理论计算值，规范计算值偏于安全。
［关键词］冷弯型钢;卷边槽钢;受弯构件;试验研究
Experimental study on behavior of cold-formed steel flexural members with thickness less than 2mm
He Baokang1，Sun Yanan1，Su Mingzhou1，Shen Lin2，Yu Yinquan2 (1 Xi′an University of Architecture and Technology, Xi′an 710055, China; 2 China Institute of Building Standard Design & Research, Beijing 100044, China)
Abstract:The experimental study  focuses on the flexural bearing capacity of cold-formed lipped channel members with thickness is 1mm. A total of 13 simply supported beam members with two sections and three different spans were tested. The test bearing capacity of the members has been compared with the calculated results based on the provisions of Chinese current code, “Technical code of cold-formed thin-walled steel structures” GB50018—2002. The results show that the process of calculating bearing capacity according to Chinese code GB50018—2002 is feasible, and the test results are higher than calculated values, which means the using of calculation formula set in the norm is reasonable.
Keywords:cold-formed steel; lipped channel; flexural members; experimental study
作者简介：何保康，教授，博导,hebk260@163.com。
参考文献
［1］GB50018—2002冷弯薄壁型钢结构技术规范［S］.北京：中国计划出版社，2002.
［2］GB/T228—2002金属材料室温拉伸试验方法［S］.eqv ISO 6892：1998.
［3］European Convention for Constructional Steelwork,“Preliminary European Recommendations for the design of profiled sheeting and sections: Part 1profiled sheeting"［S］.ECCS-T7-1981, March 1981.
［4］壁厚2mm以下冷弯薄壁型钢受弯构件性能试验研究报告［R］//西安建筑科技大学，中国建筑标准设计研究院，2007.