| 斜拉桥动力特性分析 |
| |
| 引用本文： | 宋雨,陈东霞. 斜拉桥动力特性分析[J]. 厦门大学学报(自然科学版), 2006, 45(1): 56-59 |
| |
| 作者姓名： | 宋雨 陈东霞 |
| |
| 作者单位： | 厦门大学土木工程系,福建,厦门,361005 |
| |
| 摘 要： | 有限元模型对桥梁质量和刚度分布模拟是否准确,直接影响桥梁的动力分析结果.本文对斜拉桥的索、桥塔、主梁等结构的已有建模方法进行了探讨和评述.针对斜拉桥特点,采用三维梁单元、板壳单元、杆单元等建立大桥的有限元空间分析模型,进行结构动力特性分析.将计算结果与实桥脉动测试结果进行比较,结果显示与实测结果相当吻合,进一步验证了模型的有效性,同时也为大桥进一步进行链康监测的研究提供了依据.
|
| 关 键 词： | 斜拉桥 有限元 动力特性 脉动测试 |
| 文章编号： | 0438-0479(2006)01-0056-04 |
| 收稿时间： | 2005-06-16 |
| 修稿时间： | 2005-06-16 |
Dynamic Property Analysis of Cable-stayed Bridge |
| |
| SONG Yu,CHEN Dong-xia. Dynamic Property Analysis of Cable-stayed Bridge[J]. Journal of Xiamen University(Natural Science), 2006, 45(1): 56-59 |
| |
| Authors: | SONG Yu CHEN Dong-xia |
| |
| Affiliation: | Dept. of Civil Engineering, Xiamen Univ., Xiamen 361005, China |
| |
| Abstract: | Building a finite element model of bridge,which accurately reflects the true structure's stiffness and mass distribution,can improve the precise of dynamic analysis results of structure very much.In this paper,the existing analogues of cable,tower,girder of the bridge are mentioned and observed.A large structure finite element method analysis program is adopted to build a 3-D model of a cable-stayed bridge,in which beam element,shell element and link element are used to get the dynamic property of bridge.Comparing the results of calculation with that of ambient vibration test,the validity of the model is approved and a base to have a further study on this bridge is obtained. |
| |
| Keywords: | cable-stayed bridge finite element method dynamic property ambient vibration test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
