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| 大跨度钢管混凝土拱桥空间稳定与极限承载力的双重非线性分析 | |
| 引用本文： | 袁刚. 大跨度钢管混凝土拱桥空间稳定与极限承载力的双重非线性分析[J]. 湖南城市学院学报(自然科学版), 2005, 14(2): 20-22,25 |
| 作者姓名： | 袁刚 |
| 作者单位： | 怀化市公路局,湖南,怀化,418000 |
| 摘 要： | 研究了大跨度钢管混凝土拱桥空间稳定与极限承载力双重非线性分析的有限元方法，开发了考虑核心混凝土拉裂的空间杆系有限元程序，弥补了大型通用软件的不足，并通过算例得到了混凝土拉裂对钢管混凝土拱桥稳定与极限承载力影响较大的结论。 |
| 关 键 词： | 钢管混凝土拱桥 稳定 极限承载力 双重非线性 |
| 文章编号： | 1672-7304(2005)02-0020-03 |
Double Nonlinear and Spatial Analysis Stability and Ultimate Bearing Capacity of Long-span Concrete-Filled Steel Tube Arch Bridge |
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| YUAN Gang. Double Nonlinear and Spatial Analysis Stability and Ultimate Bearing Capacity of Long-span Concrete-Filled Steel Tube Arch Bridge[J]. Journal of Hunan City University:Natural Science, 2005, 14(2): 20-22,25 | |
| Authors: | YUAN Gang |
| Abstract: | In this paper, the FEM theory of stability and ultimate bearing capacity of long span concrete-filled steel tube arch bridge is researched. Using the theory, a program is developed which can consider crack of the concrete in the steel tube. It will remedy the shortage of the commercial softwares. Also, the conclusion that the crack of the concrete in the steel tube has great influence on the stability and ultimate bearing capacity of long span concrete-filled steel tube arch bridge is proved. |
| Keywords: | Concrete-filled steel tube arch bridge stability ultimate bearing capacity double nonlinearities |
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