| 采用GB50018-2002计算壁厚小于2mm的受弯构件承载力的适用性分析 |
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| 引用本文： | 高婷婷,周绪红,刘永健,石宇.采用GB50018-2002计算壁厚小于2mm的受弯构件承载力的适用性分析[J].长安大学学报(建筑与环境科学版),2013(4):91-97. |
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| 作者姓名： | 高婷婷 周绪红 刘永健 石宇 |
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| 作者单位： | [1]长安大学建筑工程学院,陕西西安710061 [2]重庆大学土木工程学院,重庆400045 |
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| 基金项目： | 国家自然科学基金项目（51108033）;中央高校基本科研业务费专项资金项目（CHD2012ZD006,2013G3283001）国家级大学生创新创业训练计划项目（20120710098） |
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| 摘 要： | 对各国已有的壁厚小于2mm的冷弯薄壁型钢梁受弯性能试验中的86根槽形、40根Z形、6根帽形和6根工字形冷弯薄壁型钢梁的试验资料进行总结。采用中国《冷弯薄壁型钢结构技术规范》（GB50018--2002）第5．3节中受弯构件的相关规定计算各构件的极限弯矩，将计算结果与试验结果进行比较。结果表明：按中国规范GB50018—2002规定计算壁厚小于2mm的冷弯薄壁型钢受弯构件承载力是可行的，试验值均大于规范理论计算值，规范理论计算值偏于安全。
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| 关 键 词： | 冷弯薄壁型钢 受弯构件 承载力 规范 壁厚 |
Applicability Analysis of Bear Capacity of Flexural Members with Thickness Less than 2 mm Calculated Using GB 50018--2002 |
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| GAO Ting-ting,ZHOU Xu-hong,LIU Yong-jian,SHI Yu.Applicability Analysis of Bear Capacity of Flexural Members with Thickness Less than 2 mm Calculated Using GB 50018--2002[J].Journal of Northwestern Institute of Architectural Engineering,2013(4):91-97. |
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| Authors: | GAO Ting-ting ZHOU Xu-hong LIU Yong-jian SHI Yu |
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| Affiliation: | 1. School of Civil Engineering, Chang＇an University, Xi＇an 710061, Shaanxi, China 2. School of Civil Engineering, Chongqing University, Chongqing 400045, China) |
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| Abstract: | The experiments at home and abroad about bending behaviour of cold-formed thin-wall steel beams with thickness less than 2 mm were summarized, including eighty-six channel-section specimens, forty Z-section specimens, six hat-section specimens and six I-section specimens. The specimens＇ bending capacity was calculated by the provisions of chapter 5.3 in Chinese Current Technical Code of Cold-formed Thin-wall Steel Structures （GB 50018--2002）, and the calculation results were compared with the test results. The results show that the process of calculating bearing capacity according to Chinese Code GB 50018--2002 is feasible, and the test results are higher than code calculation values, which means the using of calculation formula set in the norm is reasonable. |
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| Keywords: | cold-formed thin-wall steel flexural member bear capacity code thickness |
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