| 钢管混凝土单圆拱肋压弯屈曲的有限元方法 |
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| 引用本文： | 洪周,吴乃森.钢管混凝土单圆拱肋压弯屈曲的有限元方法[J].西部交通科技,2007(6):75-78. |
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| 作者姓名： | 洪周 吴乃森 |
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| 作者单位： | 西北工业大学力学与土木建筑学院,陕西,西安,710072 |
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| 摘 要： | 文章结合实例对钢管混凝土拱桥拱肋的极限承载力进行研究,通过利用大型有限元分析软件ANSYS建立钢管混凝土拱肋模型,施加平面内不对称荷载,分析钢管混凝土拱肋的极限承载力和抗弯性能,并和传统的弹性理论方法计算所得的拱肋的压弯屈曲性能进行比较,得出拱肋压弯屈曲的有限元方法。
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| 关 键 词： | 钢管混凝土 拱肋 极限荷载 有限元方法 |
| 文章编号： | 1673-4874(2007)06-0075-04 |
| 修稿时间： | 2007年11月10 |
Finite-Element Method for Flexural-Torsional Buckling of Single Concrete Filled Steel Tubular Arch Rib |
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| HONG Zhou,WU Nai-sen.Finite-Element Method for Flexural-Torsional Buckling of Single Concrete Filled Steel Tubular Arch Rib[J].Western China Communication Science & Technology,2007(6):75-78. |
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| Authors: | HONG Zhou WU Nai-sen |
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| Abstract: | The Article,based on the actual practice,conducts a study on the ultimate bearing resistance of arch rib in concrete filled steel tubular arch bridge.Through establishing a concrete filled steel tubular arch rib model by means of large finite-element analysis software ANSYS and applying asymmetrical load on the surface,the ultimate bearing resistance and bending resistance of concrete filled arch rib have been analyzed.Comparing the analysis result with the flexural torsion performance of arch rib calculated by traditional elasticity theory method,the finite-element method for flexural-torsional buckling of arch rib can be worked out. |
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| Keywords: | Concrete-filled steel tube Arch rib Ultimate load Finite element method |
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