| 大跨度预应力混凝土斜拉桥的动力特性研究 |
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| 引用本文： | 荆龙江,项贻强,汪劲丰.大跨度预应力混凝土斜拉桥的动力特性研究[J].中国市政工程,2007(1):17-19. |
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| 作者姓名： | 荆龙江 项贻强 汪劲丰 |
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| 作者单位： | 浙江大学交通工程研究所,浙江,杭州,310027 |
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| 摘 要： | 以一座大跨度预应力混凝土斜拉桥为例,阐述了斜拉桥动力分析中所采用的几种有限元模型,并根据通用程序建立了典型斜拉桥的三维空间有限元模型,详细分析了该典型斜拉桥结构的动力特性。研究表明:典型斜拉桥结构固有频率很低,模态密集,存在很多耦合振动的情况。
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| 关 键 词： | 预应力混凝土 斜拉桥 动力特性 |
| 文章编号： | 1004-4655（2007）01-0017-03 |
| 收稿时间： | 2006-12-22 |
| 修稿时间： | 2006年12月22 |
Study on Typical Dynamic Characteristics of a Long-span Prestressed Concrete Cable-stayed Bridge |
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| JING Long-jiang,XIANG Yi-Qiang,WANG Jing-feng.Study on Typical Dynamic Characteristics of a Long-span Prestressed Concrete Cable-stayed Bridge[J].China Municipal Engineering,2007(1):17-19. |
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| Authors: | JING Long-jiang XIANG Yi-Qiang WANG Jing-feng |
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| Abstract: | The paper presented several types of finite-element model based on a typical long-span prestressed concrete cable-stayed bridge,established its precise and validated three-dimensional finite element model, and analyzed its dynamic properties. The conclusion indicates that the typical cable-stayed bridge has a lower natural frequency and dense modal, exists many coupled vibration. |
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| Keywords: | prestressed concrete cable-stayed bridge dynamic characteristic |
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