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陈淮,郭向荣.大跨度斜拉桥动力特性分析[J].计算力学学报,1997,14(1):57~63
大跨度斜拉桥动力特性分析
Dynamic characteristics analysis of long span cable stayed bridges
  
DOI:10.7511/jslx19971010
中文关键词:  有限元法 斜拉桥 自振频率 振型
英文关键词:finite element method,cable stayed bridge,natural frequency,natural modes
基金项目:河南省自然科学基金
陈淮  郭向荣
[1]郑州工业大学土建系 [2]长沙铁道学院
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中文摘要:
      本文提出一种计算大距度钢桁梁斜拉桥动力特性的方法。文中分别采用桁段有限单元、空间梁元、空间杆元计算斜拉桥中桁架,桥塔、拉索的刚度矩阵与质量矩阵,采用子空间迭代法求解特征方程,所得结果可供设计参考。
英文摘要:
      In this paper, a method for the analysis of dynamic characteristics of long span steel trussed cable stayed bridges is suggested. The finite element model is developed using finite truss elements to model the truss bridge deck, and space beam elements to model the bridge tower, and space truss elements to model the cablesof cable stayed bridge. Stiffness and mass matrices are calculated based on material and geonetric properties of the various bridge elements. The subspace iteration method is used to calculate the eigenprobem. The results provide reference for design.
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