| 结构型式对CFST拱桥振动性能的影响分析 |
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| 引用本文： | 殷迅.结构型式对CFST拱桥振动性能的影响分析[J].西部交通科技,2014(2):41-47. |
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| 作者姓名： | 殷迅 |
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| 作者单位： | 重庆市中检建筑工程质量检测有限公司,重庆400023 |
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| 摘 要： | 文章采用Ansys10.0建立了重庆市某动力性能不良的钢管混凝土(CFST)拱桥有限元模型,分别对拱肋钢管不同壁厚或直径、不同纵横梁连接形式等十种工况下大桥的动力特性进行了分析,得到了桥梁各工况下的各阶失稳模态和基频。分析结果表明:不同的拱肋壁厚或直径对大桥的动力性能有一定的影响,桥梁两端伸缩缝工作是否正常以及桥道系纵横梁连接形式对大桥的动力性能有较大影响。在以上分析的基础上,对此类桥梁的设计提出了相关建议。
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| 关 键 词： | 钢管混凝土拱桥 动力性能 Ansys 基频 结构型式 |
Impact Analysis of Different Structure on Vibration Performance of CFST Arch Bridge |
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| Yin Xun.Impact Analysis of Different Structure on Vibration Performance of CFST Arch Bridge[J].Western China Communication Science & Technology,2014(2):41-47. |
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| Authors: | Yin Xun |
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| Institution: | Yin Xun (Chongqing Zhongjian Construction Engineering Quality Testing Co.Ltd.,Chongqing,400023,China) |
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| Abstract: | This paper established a finite element model of CFST arch bridge in Chongqing, and 10 kinds different structural types of bridge vibration properties were studied in detail.Get the various cir-cumstances results of bridge modal and fundamental frequency.The results show that..different arch rib well thickness or diameter has a certain influence on dynamic performance of the bridge; bridge expansion joint and vertical horizontal beam bridge connection has a great influence on dynamic per-formance of the bridge.On the basis of the above analysis, this paper puts forward some suggestions for the design of CFST arch bridge. |
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| Keywords: | CFST Arch Bridge Dynamic performance Ansys Fundamental frequency Structural types |
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