| 菜园坝长江大桥系杆监测及评估方案 |
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| 引用本文： | 刘纲,黄宗明,林超伟,杨溥,陈伟民.菜园坝长江大桥系杆监测及评估方案[J].重庆大学学报(自然科学版),2007,30(10):69-72. |
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| 作者姓名： | 刘纲 黄宗明 林超伟 杨溥 陈伟民 |
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| 作者单位： | 重庆大学,土木工程学院,重庆,400030;华森建筑与工程设计顾问有限公司,广州分公司,广东,广州,510045;重庆大学,土木工程学院,重庆,400030;重庆大学,光电技术及系统教育部重点实验室,重庆,400030;重庆大学,光电技术及系统教育部重点实验室,重庆,400030 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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重庆市科技攻关计划 |
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| 摘 要： | 通过损伤敏感性分析确定菜园坝长江大桥系杆的监测及评估方案.以数值模拟损伤来考察全桥多处系杆受力特性的变化,分析其测点布置并结合目前传感器水平及该桥的施工条件,讨论系杆的监测方案;利用数值仿真研究不同部位系杆损伤时,全桥位移监测点的变化趋势,将对系杆损伤较为敏感的位移监测量组合成评估系杆损伤的识别模式,提出采用模式而不仅是索力来实现系杆的安全状态评估,从而有效提高系杆评估的可靠性.
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| 关 键 词： | 健康监测 系杆拱桥 布点方案 评估方案 损伤模拟 |
| 文章编号： | 1000-582X（2007）10-0069-04 |
| 修稿时间： | 2007-05-12 |
Monitoring and Assessment of Tie on the Caiyuanba Yangtze Bridge |
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| LIU Gang,HUANG Zong-ming,LIN Chao-wei,YANG Pu,CHEN Wei-min.Monitoring and Assessment of Tie on the Caiyuanba Yangtze Bridge[J].Journal of Chongqing University(Natural Science Edition),2007,30(10):69-72. |
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| Authors: | LIU Gang HUANG Zong-ming LIN Chao-wei YANG Pu CHEN Wei-min |
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| Institution: | 1. College of Civil Engineering, Chongqing University, Chongqing 400030, China; 2. Huasen Architecture and Building Design Consult Ltd Guangzhou Branch, Guangzhou 510045, China; 3. Key Laboratory of Optoelectronic Technology and System,Ministry of Education,Chongqing University,Chongqing 400030,China |
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| Abstract: | The monitoring and assessment scheme of the Caiyuanba Yangtze Bridge is present by sensitivity analysis. The mechanics character of the six ties is studied by numerical simulation, and then the sensor location and selection are discussed considering the technique of sensor and construction situation. The trend of the displacement at the sensor location is analyzed according to different damage level of ties, the pattern associating with several displacements which are sensitive to damage at ties is bring forward to improve assessment reliability. The result can assist implement of structural health monitoring system to the same type as this bridge. |
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| Keywords: | structural health monitoring tied-arch bridge sensor distributing damage assessment numerical simulation |
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