节点文献
大跨度钢箱提篮拱桥建模及动力特性分析
Modeling and dynamic properties analysis of long span X-style box-section arch bridge
【摘要】 基于大型通用有限元软件ANSYS,利用有限元法建立了大跨度钢箱提篮连拱桥的分析模型,考虑了剪切和翘曲变形的影响,用Block-Lanczos法分析了其振动规律和动力特性,得到了大桥的振型、频率等资料数据,对大桥的动力性能做出评价,得出了一些有价值的结论,可作为同类型桥梁计算分析的参考。
【Abstract】 Based on the finite element software,ANSYS,the spatial model of a long span X-style box-section arch bridge was created.With the consideration of warping and shear deflection effect,the dynamic properties of the bridge were analyzed by the Block-Lanczos method and the data of frequencies and shapes were obtained.At last,the dynamic properties were assessed and some conclusions were obtained which can be a reference to the bridges with same style.
【关键词】 有限元分析;
钢箱提篮连拱;
动力特性;
翘曲剪切变形;
【Key words】 finite element method; multiple X-style box-section arch bridge; dynamic properties; warping and shear deflection;
【Key words】 finite element method; multiple X-style box-section arch bridge; dynamic properties; warping and shear deflection;
【基金】 国家自然科学基金(19872020);广西科技攻关项目(桂科攻0592005-1)
- 【文献出处】 广西工学院学报 ,Journal of Guangxi University of Technology , 编辑部邮箱 ,2007年02期
- 【分类号】U448.22
- 【被引频次】3
- 【下载频次】87