| 大跨度钢管混凝土劲性骨架拱桥极限承载力分析 |
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| 引用本文： | 叶梅新 刘东芳. 大跨度钢管混凝土劲性骨架拱桥极限承载力分析[J]. 中南公路工程, 2007, 32(4): 100-102 |
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| 作者姓名： | 叶梅新 刘东芳 |
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| 作者单位： | 中南大学土木建筑学院 湖南长沙410075 |
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| 摘 要： | 针对大跨度钢管混凝土劲性骨架拱桥在变形、失稳破坏期间产生的材料和几何非线性特性,对这种桥型的非线性分析理论和分析方法进行了研究,并以宜万线上某大桥为例,进行了静力荷载作用下的极限承载力分析;此外,对该桥的刚度问题、设计荷载下的应力控制区域等问题进行了研究。研究结果表明,钢管混凝土肋拱具有较好的弹塑性性能和较高的承载能力。
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| 关 键 词： | 钢管混凝土 劲性骨架 极限承载力 有限元法 几何非线性 材料非线性 |
| 文章编号： | 1002-1205（2007）04-0100-03 |
| 收稿时间： | 2006-11-06 |
| 修稿时间： | 2006-11-06 |
Ultimate Load Capacity Analysis of Long-Span Concrete-filled Steel Tube Stiffening-frame Arch Bridge |
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| YE Meixin, LIU Dongfang. Ultimate Load Capacity Analysis of Long-Span Concrete-filled Steel Tube Stiffening-frame Arch Bridge[J]. Central South Highway Engineering, 2007, 32(4): 100-102 |
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| Authors: | YE Meixin LIU Dongfang |
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| Affiliation: | School of Civil and Architectural Engineering, Central South University, Changsha, Hunan 410075, China |
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| Abstract: | On the background of the nonlinear characteristics of material and geometric design during the period of deformation and instability for long-span concrete-filled steel tubular arch bridges.Analysis of the ultimate load capacity of a bridge in Yi-Wan Line under static loads is finished.Rigidity of the bridge and the stress controlling region under the design load are also studied.Results show that the concrete-filled steel tube rib arch has good elastic-plastic performances and high strength. |
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| Keywords: | concrete-filled steel tube stiffening-frame ultimate load capacity finite element method geometric nonlinearity material nonlinearity |
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