| 大跨外倾式拱桥动力特性分析研究 |
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| 引用本文： | 白家风.大跨外倾式拱桥动力特性分析研究[J].城市道桥与防洪,2009(9):71-74. |
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| 作者姓名： | 白家风 |
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| 作者单位： | 兰州交大工程咨询有限责任公司,甘肃兰州,730070 |
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| 摘 要： | 桥梁自振特性是其动力分析的重要参数,包括自振频率、振型及阻尼比,它们取决于结构的组成、刚度、质量分布及约束条件。要研究桥梁结构的抗震、抗风等动力性能,必须了解桥梁结构的自振特性。大跨度外倾式拱桥的结构构造比较复杂,其动力特性与一般的拱桥不同。该文通过对某外倾式拱桥的动力特性分析,为该桥抗震分析提供参考和依据。
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| 关 键 词： | 自振特性 动力分析 外倾式拱桥 外倾式 抗震分析 |
Analysis and Study of Dynamical Characteristic of Large-span Extroversion Arched Bridge |
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| Bai Jiafeng.Analysis and Study of Dynamical Characteristic of Large-span Extroversion Arched Bridge[J].Urban Roads Bridges & Flood Control,2009(9):71-74. |
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| Authors: | Bai Jiafeng |
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| Abstract: | The self-vibration characteristic of bridge is the important parameter of its dynamic analysis including the self-vibration frequency, vibration type and damp ratio. These parameters lie on the structure composition, rigidity, quality distribution and restricting condition. To study the anti- earthquake and anti-wind dynamic performances must understand the self-vibration characteristics of bridge structure. The structural construction of large-span extroversion arched bridge is more complicated. Its dynami... |
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| Keywords: | self-vibration characteristic dynamic analysis extroversion arched bridge anti- earthquake analysis |
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