| 悬索线无铰拱桥自重内力实用计算方法研究 |
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| 引用本文： | 胡常福.悬索线无铰拱桥自重内力实用计算方法研究[J].华东交通大学学报,2010,27(6):12-16. |
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| 作者姓名： | 胡常福 |
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| 作者单位： | 华东交通大学土木建筑学院,江西南昌330013 |
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| 基金项目： | 国家973计划项目，国家自然科学基金，华东交通大学科学研究基金，江西省道路与铁道工程重点实验室 |
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| 摘 要： | 鉴于影响线加载法计算效率低和有限元法建模工作量大,无铰拱桥自重内力无法进行简便计算。基于桥面系作用主拱圈荷载的等效膜张力假定,采用解析法对悬索线无铰拱桥自重内力进行求解,得出实用公式,并用实桥算例验证了该方法。
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| 关 键 词： | 自重内力 实用方法 等效膜张力 悬索线理论 无铰拱桥 |
Practical Method Research of Dead Load Internal Force Calculation in Cable Line Hingeless Arch Bridge |
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| Hu Changfu.Practical Method Research of Dead Load Internal Force Calculation in Cable Line Hingeless Arch Bridge[J].Journal of East China Jiaotong University,2010,27(6):12-16. |
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| Authors: | Hu Changfu |
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| Institution: | Hu Changfu(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | Because of the low calculation efficiency of influence-line loading method and large FEM modeling work,there is no simple and convenient method for hingless arch bridge dead load internal force calculation.Based on equivalent membrane tension assumption for simplifying the dead load of bridge deck system,the dead load internal force expression of cable line hingeless arch bridge is deduced using analytical method,a simple and convenient result is obtained,and it is verified by a arch bridge calculation example. |
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| Keywords: | dead load internal force practical method equivalent membrane tension assumption suspension cable line theory hingless arch bridge |
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