| 单轴对称截面圆弧拱弹性弯扭屈曲临界荷载 |
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| 引用本文： | 窦超,郭彦林. 单轴对称截面圆弧拱弹性弯扭屈曲临界荷载[J]. 建筑科学与工程学报, 2011, 28(4): 69-74,85 |
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| 作者姓名： | 窦超 郭彦林 |
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| 作者单位： | 清华大学土木工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金项目(50478013) |
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| 摘 要： | 为了研究均布径向压力作用下的单轴对称截面均匀受压圆弧拱的弹性弯扭屈曲临界荷载,为一般荷载作用下压弯钢拱的稳定承载力设计奠定基础,采用平衡法推导得到了均匀受压圆弧拱的面外屈曲临界荷载的理论解.在微元段受力平衡的基础上,建立了任意轴线形状、截面形式的曲线构件的平衡方程,代入截面变形条件、内力与变形条件推导出了单轴对称截面均...
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| 关 键 词： | 钢拱 弯扭屈曲 平衡法 屈曲临界荷载 荷载作用位置 圆弧拱 |
Elastic Flexural-torsional Buckling Load of Monosymmetric Circular Arches |
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| DOU Chao , GUO Yan-lin. Elastic Flexural-torsional Buckling Load of Monosymmetric Circular Arches[J]. Journal of Architecture and Civil Engineering, 2011, 28(4): 69-74,85 |
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| Authors: | DOU Chao GUO Yan-lin |
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| Affiliation: | DOU Chao,GUO Yan-lin(Department of Civil Engineering,Tsinghua University,Beijing 100084,China) |
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| Abstract: | To study the elastic flexural-torsional buckling load of monosymmetric circular arches under uniform radial pressure which can be used in the design of stable bearing capacity of steel arches under both compression and bending,the theoretical solution for out-of-plane buckling loads of monosymmetric circular arches under uniform compression was obtained by using equilibrium method.Based on the force equilibrium of curve infinitesimal,equilibrium equations for curved members with any axial form and section f... |
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| Keywords: | steel arch flexural-torsional buckling equilibrium method buckling load loading position circular arch |
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