| 体外预应力主动加固技术施工控制分析 |
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| 引用本文： | 向木生,黄鹤,刘忠泽.体外预应力主动加固技术施工控制分析[J].交通科技,2010(2):7-9. |
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| 作者姓名： | 向木生 黄鹤 刘忠泽 |
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| 作者单位： | 1. 武汉理工大学交通学院,武汉,430063
2. 十堰市城区公路局,十堰,442000 |
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| 摘 要： | 根据某T型刚构桥的病害情况、受力特点,采用有限元软件midas/civil对结构进行三维空间有限元建模计算分析。通过对某特大桥的体外预应力加固全过程进行现场施工监控,分析比较体外预应力筋的索力、结构的应力、挠度改变量等的理论值和实测值,得出有价值的结论,用于指导工程实践。
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| 关 键 词： | T型刚构桥 有限元建模 体外预应力加固 |
Construction Control Analysis of Active Strengthening Technique of External Prestressing |
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| Xiang Musheng,Huang He,Liu Zhongze.Construction Control Analysis of Active Strengthening Technique of External Prestressing[J].Transportation Science & Technology,2010(2):7-9. |
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| Authors: | Xiang Musheng Huang He Liu Zhongze |
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| Institution: | Xiang Musheng1,Huang He1,Liu Zhongze2(1.School of Transportation,Wuhan University of Technology,Wuhan 430063,China,2.Urban Highway Bureau of Shiyan,Shiyan 442000,China) |
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| Abstract: | From the damage and mechanic properties of T rigid frame bridge, the paper carried out finite element analysis for three dimensional spatial structure with midas/civil. Through the detailed calculation and analysis for extraneous prestressed strengthening engineering of the super large bridge, the paper determines cable force of the prestressed reinforcement and changes of structural stress and deflection, which can be applied to engineering practice. |
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| Keywords: | T rigid frame bridge finite element analysis extraneous prestressed strengthening technique |
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