| 冷弯薄壁型钢轴心受压构件局部屈曲后强度分析 |
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| 引用本文： | 史三元,景晓昆.冷弯薄壁型钢轴心受压构件局部屈曲后强度分析[J].河北工程大学学报,2008,25(3):1-3. |
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| 作者姓名： | 史三元 景晓昆 |
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| 作者单位： | 河北工程大学土木工程学院 |
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| 摘 要： | 冷弯薄壁型钢具有较大的受压屈曲后强度,目前常用有效宽度法和直接强度法两种方法分析。本文通过算例与试验结果对比,找到了两种方法与试验结果之间的极限承载力差值,其中《冷弯薄壁型钢结构技术规范》提出的有效宽度法偏于保守,而直接强度法的分析结果较为接近,在工程应用中可以考虑采用直接强度法分析。
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| 关 键 词： | 冷弯薄壁型钢 屈曲后强度 有效宽度法 直接强度法 |
| 收稿时间： | 2008/4/28 0:00:00 |
The analysis of local post-buckling strength of cold-formed thin-walled steel axial compression members |
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| Authors: | SHI San-yuan and JING Xiao-kun |
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| Affiliation: | School of Civil Engineering,Hebei University of Engineering,Handan 056038,China;School of Civil Engineering,Hebei University of Engineering,Handan 056038,China |
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| Abstract: | Cold-formed thin-walled steel has large post-buckling strength under compression,effective width method and direct strength method are used to analyze at present.In this paper,with a comparison between the numerical example and experimental results,the different values of ultimate bearing capacity between the two methods and experimental results are found,effective width method given by the technical code of cold-formed thin-walled steel structure is conservative and the results of direct strength method are relatively close to the experimental results,in engineering direct strength method can be taken into account. |
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| Keywords: | cold-formed thin-walled steel post-buckling strength effective width method direct strength method |
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