| 混凝土桥塔损伤与补强的分析研究 |
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| 引用本文： | 俞博,叶见曙,刘华,刘保国.混凝土桥塔损伤与补强的分析研究[J].苏州科技学院学报(工程技术版),2007,20(3):20-24,29. |
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| 作者姓名： | 俞博 叶见曙 刘华 刘保国 |
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| 作者单位： | 1. 东南大学,交通学院,江苏,南京,210096
2. 济源至洛阳高速公路管理中心,河南,洛阳,471012 |
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| 摘 要： | 针对某座斜拉桥的混凝土桥塔在施工缝处出现的损伤和补强措施,建立了空间实体有限元模型,仿真模拟了损伤对结构设计状态的影响,并在损伤状态下对结构进行补强,然后比较分析了补强效果。通过对设计状态、损伤状态和损伤后的补强状态这三种情况的静力计算和动力性能分析,得出了施工缝处的损伤会减小结构设计状态的刚度,而采取补强措施后,结构刚度基本能够恢复到设计水平。
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| 关 键 词： | 混凝土桥塔 损伤 补强 仿真模拟 |
| 文章编号： | 1672-0679（2007）03-0020-05 |
| 收稿时间： | 2007-04-11 |
| 修稿时间： | 2007-04-11 |
Analysis of Concrete Bridge Tower Damage and Reinforcement |
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| YU Bo,YE Jian-shu,LIU Hua,LIU Bao-guo.Analysis of Concrete Bridge Tower Damage and Reinforcement[J].Journal of University of Science and Technology of Suzhou：Engineering and Technology,2007,20(3):20-24,29. |
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| Authors: | YU Bo YE Jian-shu LIU Hua LIU Bao-guo |
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| Affiliation: | 1.College of Transportation, Southeast University, Nanjing 210096, China;2.Jiyuan-Luoyang Expressway Administrative Office, Luoyang 471012, China |
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| Abstract: | Based on the cracks,concrete flakes and reinforcements in the construction joints of concrete bridge tower of one bridge,the paper established the FEM model,emulating the effect of damages on the structural design and making the reinforcement under the damage,then the reinforcement effect was compared and analyzed.Through the static and dynamical analysis of design state,damage state and reinforced state,the paper concluded that the damages in the construction joints would reduce the stiffness of the structural state and the structure stiffness would basically return to the design state after reinforcement. |
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| Keywords: | concrete bridge tower damage reinforcement emulation |
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