| 高强钢薄壁箱形截面压杆稳定性研究 |
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| 作者单位： | 解放军理工大学工程兵工程学院 南京210007(高磊，戚亮)，总装备部工程兵科研二所 北京100093(孙宏才，徐关尧) |
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| 摘 要： | 基于薄板的弹塑性大挠度有限元理论,综合考虑几何缺陷和力学缺陷,研究了腹板高厚比、翼缘宽厚比对高强钢薄壁箱形截面构件稳定性的影响。以翼缘宽厚比,腹板高厚比,构件长细比为三个参数,提出了考虑局部和整体相关屈曲的高强钢薄壁箱形截面构件极限承载能力的空间曲面方程,可以为设计提供参考。
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| 关 键 词： | 稳定系数 高强钢薄壁箱形截面 相关屈曲 |
STABILITY RESEARCH FOR THIN-WALLED BOX COLUMN OF HIGH-STRENGTH STEEL |
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| Gao Lei Qi Liang. STABILITY RESEARCH FOR THIN-WALLED BOX COLUMN OF HIGH-STRENGTH STEEL[J]. Industrial Construction, 2008, 0(Z1) |
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| Authors: | Gao Lei Qi Liang |
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| Abstract: | Based on elasto-plastic large deflection finite element theory of the thin-walled steel plate,and considering geometric defect and mechanical defect,the effect of width to thickness ratio of flange and the highness to thickness ratio of the web on the stability of the thin-walled box column of high-strength steel is studied.Taking the width to thickness ratio of flange,the highness to thickness ratio of the web and the slenderness of the column as the parameters,a spatial curved face equation of the ultimate load-bearing of the thin-walled box column of high-strength steel is put forward which considers the relative buckling of the local and overall column.This equation can be refered by the designers. |
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| Keywords: | stability factor thin-walled box section of high-strength steel relative buckling |
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