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| 单根吊杆断裂时组合体系拱桥结构强健性研究 | |
| 引用本文： | 王兆铭,胡香兰,顾成凯,阮欣.单根吊杆断裂时组合体系拱桥结构强健性研究[J].结构工程师,2012,28(3):50-54. |
| 作者姓名： | 王兆铭 胡香兰 顾成凯 阮欣 |
| 作者单位： | 1. 同济大学建筑设计研究院(集团)有限公司,上海,200092 2. 杭州市城市基础设施建设发展中心,杭州,310006 3. 同济大学桥梁工程系,上海,200092 |
| 摘 要： | 以某在建大桥为主要研究背景,利用ANSYS通用有限元程序,对典型位置单根吊杆断裂给桥梁整体结构性能上带来的影响进行了计算分析。结果表明,单根吊杆断裂对大桥的影响体现同跨同侧特性,四分点吊杆断裂对大桥剩余吊杆影响稍高,拱脚区域的短吊杆对大桥主拱及主纵梁影响较为明显。大桥对单根吊杆断裂强健,整个结构不会有安全问题,计算结果为大桥的管理和养护提供了参考。 |
| 关 键 词： | 拱桥 吊杆 主拱 主纵梁 强健性 |
Research on Structural Robustness for Single Cable Loss in Combination System Arched Bridges |
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| WANG Zhaoming , HU Xianglan , GU Chengkai , RUAN Xin.Research on Structural Robustness for Single Cable Loss in Combination System Arched Bridges[J].Structural Engineers,2012,28(3):50-54. | |
| Authors: | WANG Zhaoming HU Xianglan GU Chengkai RUAN Xin |
| Affiliation: | 1.Architectural Design and Research Institute of Tongji University(Group) Co.,Ltd.,Shanghai 200092,China; 2.Hangzhou Urban Infrastructure Construction and Development Center,Hangzhou 310006,China; 3.Department of Bridge Engineering,Tongji University,Shanghai 200092,China) |
| Abstract: | This study was conducted on the background of a bridge under construction.Finite element program ANSYS was used to analize this project.The impact on the overall structure caused by the single cable loss in typical location was calculated.The results show that the impact on the bridge caused by the single cable loss reflects the same side and the same span.The impact on the remaining cables by the quartile cable loss is higher than other cable loss and the impact on the main arch and the main longitudinal girder caused by the single cable loss in the Springer point is more obvious than other areas.The bridge is robust to the single cable loss and there are no safety problems to the whole structure.The result provides references to the management and conservation of the bridge. |
| Keywords: | arch bridge cable main arch main longitudinal girder robustness |
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