| 预应力效应对桥梁振动特性的影响 |
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| 引用本文： | 李,琼.预应力效应对桥梁振动特性的影响[J].交通科技与经济,2014(2):91-92,95. |
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| 作者姓名： | 李 琼 |
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| 作者单位： | 重庆市丰都县公路局,重庆408200 |
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| 摘 要： | 通过对预应力梁桥自振频率分析,揭示桥梁刚度或质量分布导致桥梁结构自由振动频率发生变化。总结桥梁的无阻尼自由振动计算式,实现自由振动频率和振型的求解,为结构的振动特性分析提供依据。
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| 关 键 词： | 桥梁结构 预应力桥梁 自由振动 振动特性 |
Influence of Prestressed Effect on Bridge Dynamic Character |
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| LI Qiong.Influence of Prestressed Effect on Bridge Dynamic Character[J].Technology & Economy in Areas of Communications,2014(2):91-92,95. |
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| Authors: | LI Qiong |
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| Institution: | LI Qiong(Highway Administration of Chongqing Fengdu County,Chongqing 408200, China) |
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| Abstract: | By the natural frequency analysis on prestressed bridge,a fact that the change of bridge rigidity or mass distribution would lead to a variation for the natural frequency of bridge structure was revealed.It calculated the formula of undamped free vibration and implemented solution of natural frequency and vibration mode.In addition,it provided theoretical basis for vibration characteristic analysis of bridge structure. |
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| Keywords: | bridge structure prestressed bridge natural vibration vibration characteristics |
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