| 在役大跨石拱桥极限承载力的影响因素 |
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| 引用本文： | 郭风琪,余志武.在役大跨石拱桥极限承载力的影响因素[J].铁道科学与工程学报,2012(2):14-17. |
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| 作者姓名： | 郭风琪 余志武 |
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| 作者单位： | 中南大学土木工程学院 |
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| 基金项目： | 湖南省交通厅科技项目(200819) |
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| 摘 要： | 采用双重非线性有限元方法,从荷载分布、温度影响、初始缺陷和结构损伤等几个方面对1座大跨度石拱桥的极限承载能力的影响进行研究,指出荷载类型和布置、结构初始几何缺陷和损伤对在役大跨石拱桥极限承载力有较大影响。
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| 关 键 词： | 石拱桥 双重非线性 极限承载力 影响因素 |
Influencing factors of ultimate bearing capacity of inservice long span stone arch bridge |
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| GUO Feng-qi,YU Zhi-wu.Influencing factors of ultimate bearing capacity of inservice long span stone arch bridge[J].Journal of Railway Science and Engineering,2012(2):14-17. |
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| Authors: | GUO Feng-qi YU Zhi-wu |
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| Affiliation: | (School of Civil Engineering,Central South University,Changsha 410075,China) |
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| Abstract: | Using double nonlinear finite element method,the effects of several aspects-load distribution,temperature influence,initial imperfection and structural damage and so on,the ultimate bearing capacity of a long-span arch were studied.The results show that load types,loading arrangement,initial structure geometric imperfection and damage have great influence on the ultimate bearing capacity of existing large-span bridge. |
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| Keywords: | stone arch bridge double nonlinear ultimate bearing capacity influencing factors |
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