| 钢管混凝土格构柱偏压承载能力分析的数值方法 |
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| 引用本文： | 蒋丽忠,周旺保,唐斌.钢管混凝土格构柱偏压承载能力分析的数值方法[J].计算力学学报,2010,27(1):127-131. |
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| 作者姓名： | 蒋丽忠 周旺保 唐斌 |
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| 作者单位： | 中南大学土木建筑学院,长沙,410075 |
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| 基金项目： | 国家自然科学基金(50438020;50778177);;湖南省杰出青年基金(07JJ1009)资助项目 |
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| 摘 要： | 采用泰勒级数作为分段插值函数,在考虑多个截面的平衡条件和紧箍效应钢管混凝土应力-应变关系基础上,提出了钢管混凝土格构柱弹塑性极限承载力数值方法,并编制了相应的计算程序。与现有的分段合成法相比,该方法考虑了剪力对柱变形的影响,不仅适用于两端偏心相等的偏压构件,而且适用于两端偏心不等的偏压构件的弹塑性极限承载力的计算。利用提出的计算方法和编制的程序对国内已有两端偏心相同的四肢钢管混凝土格构偏压长柱的试验结果进行了计算,并与现有规程进行了比较,结果表明:现有计算方法结果偏于保守,计算误差大,本文提出的计算结果与试验结果吻合良好。
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| 关 键 词： | 极限承载能力 数值方法 钢管混凝土 格构柱 偏心受压 |
| 收稿时间： | 2008/2/28 0:00:00 |
Numerical analysis method of the eccentric compression bearing capacity for the concrete filled steel tubelar latticed columns |
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| JIANG Li-zhong,ZHOU Wang-bao and TANG Bin.Numerical analysis method of the eccentric compression bearing capacity for the concrete filled steel tubelar latticed columns[J].Chinese Journal of Computational Mechanics,2010,27(1):127-131. |
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| Authors: | JIANG Li-zhong ZHOU Wang-bao and TANG Bin |
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| Institution: | School of Civil and Architectural Engineering/a>;Central South University/a>;Changsha 410075/a>;China |
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| Abstract: | The Taylor's series were used as the piecewise interpolation function.Based on the equilibrium condition of several sections and the stress-strain relationship of the concrete-filled steel tube considerating the confinement effect,the numerical method for calculating the elastic-plastic ultimate loads of the concrete-filled tubular laced columns were put forward,and the corresponding computing program was compiled.Compared with the existing methods,the effect of the shear was taken into account in this meth... |
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| Keywords: | ultimate bearing capacity numerical method concrete-filled steel tube latticed column eccentric compression |
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