| 切割对C形冷弯型钢短柱初始几何缺陷的影响 |
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| 引用本文： | 王小平,林少书,钟国辉. 切割对C形冷弯型钢短柱初始几何缺陷的影响[J]. 武汉理工大学学报, 2005, 27(6): 58-61 |
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| 作者姓名： | 王小平 林少书 钟国辉 |
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| 作者单位： | 1. 武汉理工大学土木工程与建筑学院,武汉,430070
2. 香港理工大学土木及结构工程系,香港红墈 |
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| 基金项目： | 香港特别行政区政府资助 (RGCNO :PolyU5 0 4 8/ 0 0E) |
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| 摘 要： | 以2个辊轧成型的C形冷弯薄壁型钢截面为研究对象，在长构件中切割短柱，测试了切割后短柱的歪曲变形和切割前后短柱沿长度方向的初始几何缺陷。结果表明：切割后短柱产生了明显的歪曲变形，进而引起很大的初始几何缺陷，将影响短柱的轴压承载力和破坏模态。
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| 关 键 词： | 切割 C形截面 冷弯薄壁型钢 歪曲变形 初始几何缺陷 |
| 文章编号： | 1671-4431(2005)06-0058-04 |
| 修稿时间： | 2005-02-21 |
Effect of Cutting on Initial Geometric Imperfections of Cold-formed Steel Stub Columns with C-section |
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| WANG Xiao-ping,LAM Siu-shu,CHUNG Kwok-fai. Effect of Cutting on Initial Geometric Imperfections of Cold-formed Steel Stub Columns with C-section[J]. Journal of Wuhan University of Technology, 2005, 27(6): 58-61 |
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| Authors: | WANG Xiao-ping LAM Siu-shu CHUNG Kwok-fai |
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| Affiliation: | WANG Xiao-ping 1,LAM Siu-shu 2,CHUNG Kwok-fai 2 |
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| Abstract: | Two kinds of roll-formed steel C-sections were taken as the research object. Stub columns were cut from the middle of long members. The cross section distortion and geometric imperfections along the length of the cut stub columns were measured. Measurement results showed that there was obvious cross section distortion in the cut stub columns after cutting, resulting in the large additional initial geometric imperfections along the length, which would affect the axial compressive ultimate strength and the failure modes of the cut stub columns. |
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| Keywords: | cutting C-section cold-formed steel cross section distortion initial geometric imperfection |
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