| 斜拉桥动力特性分析 |
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| 引用本文： | 李文静,张坤.斜拉桥动力特性分析[J].四川理工学院学报(自然科学版),2008,21(5). |
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| 作者姓名： | 李文静 张坤 |
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| 作者单位： | 1. 兰州交通大学土木工程学院,兰州,730070
2. 甘肃科地工程咨询有限公司,兰州,730020 |
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| 摘 要： | 以某斜拉桥为工程背景,基于ANSYS建立了三维有限元分析模型,分析了斜拉桥自身的动力特性,主要包括自由振动频率、振型特性。结果表明:大跨度斜拉桥自振周期长,频谱密集,自振特性表现出明显的三维性和振型相互耦合的特点。
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| 关 键 词： | 斜拉桥 大跨度 动力特性 有限元分析模型 |
Dynamic Characteristic Analysis for Cable-Stayed Bridge |
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| LI Wen-jing,ZHANG Kun.Dynamic Characteristic Analysis for Cable-Stayed Bridge[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2008,21(5). |
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| Authors: | LI Wen-jing ZHANG Kun |
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| Abstract: | A cable-stayed bridge is taken for study and a 3-D finite element analysis mode with ANSYS is established,the special dynamical characteristics of this bridge are investigated,including the natural frequency,the features of natural models. The result shows that the large span cable-stayed bridge is long natural cycle,spectrum- intensive, the vibration characteristics clearly show three-dimensional modes and the characteristics of mutual coupling. |
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| Keywords: | cable-stayed bridge long-span dynamical characteristic finite element analysis model |
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