| 公路桥梁体外预应力加固设计中力筋的振动控制 |
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| 引用本文： | 李伟国,李秉南,黄锦,黄建波.公路桥梁体外预应力加固设计中力筋的振动控制[J].城市道桥与防洪,2009(7):79-81. |
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| 作者姓名： | 李伟国 李秉南 黄锦 黄建波 |
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| 作者单位： | 1. 中国市政工程中南设计研究院,湖北武汉,430010
2. 东南大学建筑设计研究院交通分院,江苏南京,210096 |
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| 摘 要： | 公路桥梁采用体外预应力技术进行加固时,在汽车荷载作用下,预应力筋和梁体有可能发生共振现象,使力筋内力增大甚至发生断裂。该文通过对体外力筋的振动问题建立力学模型进行研究,提出控制力筋振动的建议,供体外预应力加固桥梁工程设计时参考。
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| 关 键 词： | 体外预应力 公路桥梁 加固 振动控制 |
Vibration Control of Pre-stressing Reinforcement in Design of Out-body Pre-stressing Reinforcing of Highway Bridge |
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| Li Weiguo,Li Binnan,Huang Jing,Huang Jianbo.Vibration Control of Pre-stressing Reinforcement in Design of Out-body Pre-stressing Reinforcing of Highway Bridge[J].Urban Roads Bridges & Flood Control,2009(7):79-81. |
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| Authors: | Li Weiguo Li Binnan Huang Jing Huang Jianbo |
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| Abstract: | When the highway bridge is reinforced by the out-body prestressing technique,the prestressing reinforcement and the beam body maybe take place the phenomena of sympathetic vibration to make the inner force of pre-stressing reinforcement increase and the breaking at least.The article studies the mechanics model set up for the vibration problem of out-body pre-stressing reinforcement,and puts forward the suggestions for controlling the vibration of the pre-stressing reinforcement able to provide the reference... |
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| Keywords: | out-body pre-stressing highway bridge reinforcing vibration control |
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