摘要
结合某大跨度钢管混凝土提篮拱桥的工程实例,采用有限元法建立其空间动力计算模型,考虑了剪切变形的影响,通过M法原理模拟了地基与基础的相互作用,用子空间迭代法分析了动力特性,并分别应用反应谱法和考虑几何及材料双重非线性的时程分析法分析了该拱桥的地震反应,并对2种方法的计算结果进行了比较.
In this paper, an engineering design case of a multiple long span X-style concrete filled steel tube （CFST） arch bridge was investigated, and its 3 dimensional dynamic model was created with FEM. The soil-structure interaction was computed by M method. With a consideration of shear deformation effect, the dynamic characteristics of the bridge was analyzed by subspace iteration method and the seismic response of the bridge was respectively calculated by means of the spectrum method and time history method with a consideration of hi-nonlinearity.
出处
《武汉理工大学学报（交通科学与工程版）》
2009年第2期365-368,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金项目资助(批准号:19872020)
广西科技攻关项目资助(批准号:桂科攻0592005-1C)
关键词
有限元分析
钢管混凝土提篮连拱
动力特性
地震反应
反应谱法
时程分析法
finite element method multiple X-style CFST arch dynamic characteristics seismic response spectrum method
time history method
