| 竖向均载下轻钢门式刚架极限承载力有限元分析 |
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| 引用本文： | 王林,肖亮,唐柏鉴.竖向均载下轻钢门式刚架极限承载力有限元分析[J].江苏科技大学学报(社会科学版),2008,22(6). |
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| 作者姓名： | 王林 肖亮 唐柏鉴 |
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| 作者单位： | 江苏科技大学船舶与海洋工程学院,江苏镇江212003 |
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| 基金项目： | 镇江市社会发展资助项目(2006CH057J) |
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| 摘 要： | 基于非线性板壳有限元结构分析方法，运用有限元分析软件ANSYS，对轻钢门式刚架考虑柱腹板屈曲，梁腹板不屈曲的极限承载力进行材料、几何双重非线性分析，研究了柱腹板高厚比、翼缘宽厚比、斜梁坡度、高跨比等几何参数的变化对刚架极限承载力的影响．计算结果表明：增加柱腹板厚度、柱腹板高度、翼缘厚度、斜梁坡度、高跨比可以提高刚架极限承载力；柱腹板高厚比在60～135范围内，翼缘宽厚比在9～15．43范围内变化时对承载力影响较大；而斜梁坡度在1／8～1／24范围内，高跨比在1／12—1／8范围内变化时对刚架极限承载力的影响较小，工程分析时可以忽略它们的影响．
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| 关 键 词： | 门式刚架 腹板屈瞳 极限承载力 非线性分析 |
Finite element analysis on the ultimate load-carrying capacity of portal frame of light-weight steel structure at vertical symmetrical load |
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| WANG Lin,XIAO Liang,TANG Baijian.Finite element analysis on the ultimate load-carrying capacity of portal frame of light-weight steel structure at vertical symmetrical load[J].Journal of Jiangsu University of Science and Technology:Natural Science Edition,2008,22(6). |
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| Authors: | WANG Lin XIAO Liang TANG Baijian |
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| Abstract: | Based on the non-linear finite element method for sheet-shell structures,the material and geometry diploid non-linear analysis on the ultimate load-carrying capacity of portal frame of light-weight steel structure is carried out when buckling of web plate of column is considered.The alterations of geometric parameters including web plate height-thickness ratio,flange width-thickness ratio,gradient and height-span ratio are analyzed;and then some conclusions are presented for engineering design.Results show ... |
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| Keywords: | portal frame buckling of web plate ultimate load-carrying capacity non-linear analysis |
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