摘要
建立了斜拉桥动力分析的三维有限单元模型 ,研究了单元类型和参数变化对斜拉桥动力特性的影响。详细地讨论了斜拉桥非线性来源 ,并运用 6节点薄壁单元和 4节点索单元分别考虑了斜拉桥弯曲构件和索的非线性特性。通过对一斜拉桥的数值分析 ,得到了关于斜拉桥动力参数敏感性的一般结论。
A three-dimensional finite element model for cable-stayed bridges is set up and the influence of structural parameters and the type of finite element on the dynamic characteristics of cable-stayed bridges is studied in the paper.The sources of non-linearity in cable-stayed bridges are discussed,and a six-node thin-walled finite element and a four-node cable element are used to model the deck and cable respectively.Numerical analysis draws the general conclusions on the parametric sensitivity about dynamic characteristics of cable-stayed bridges.
出处
《振动与冲击》
EI
CSCD
北大核心
2003年第3期12-15,共4页
Journal of Vibration and Shock
基金
国家自然科学基金 (5990 80 0 3)
武汉市青年科技晨光计划资助
