| 双轴对称薄壁锥形柱轴心受压的极限承载力 |
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| 引用本文： | A.H.Salem,M.El Aghoury,M.N.Fayed,I.M.El Aghoury. 双轴对称薄壁锥形柱轴心受压的极限承载力[J]. 钢结构, 2009, 0(8) |
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| 作者姓名： | A.H.Salem M.El Aghoury M.N.Fayed I.M.El Aghoury |
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| 摘 要： | 薄壁工字型锥形构件的性能由构件长细比和板单元宽厚比决定。本文对这种交互效应进行了理论研究。构建了一个具有几何非线性的非线性有限元模型进行计算。选取了大量具有不同宽厚比的翼缘和腹板,以及具有不同长细比的构件进行研究,归纳出较完整的极限强度-长细比曲线,和不同的破坏模式。根据设计目的得出一系列的曲线。最后,提出了锥形细长工字型构件(整个截面)的轴心极限承载力经验公式。这个方程简化了有效宽度的计算,提供更灵活的设计方法。
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| 关 键 词： | 结构工程 钢 稳定性 锥形构件 局部缺陷整体屈曲 极限强度 |
Ultimate Capacity of Axially Loaded Thin-Walled Tapered Columns with Doubly Symmetric Sections |
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| A.H.Salem,M.El Aghoury,M.N.Fayed , I.M.El Aghoury. Ultimate Capacity of Axially Loaded Thin-Walled Tapered Columns with Doubly Symmetric Sections[J]. Steel Construction, 2009, 0(8) |
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| Authors: | A.H.Salem M.El Aghoury M.N.Fayed I.M.El Aghoury |
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| Abstract: | The behaviour of thin-walled I-section tapered members is governed by the width-thickness ratio of the plate elements along with the member slenderness and tapering ratios.The effect of this interaction has been studied theoretically in this work.A nonlinear finite element model which allows for geometric non-linearities is constructed for the study.Large number of members having different values of flange and web width-thickness ratios along with different member lengths and tapering ratios were selected t... |
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| Keywords: | Structural engineering Steel Stability Slender sections Tapered members Local imperfection Global buckling Ultimate strength |
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