摘要
文章指出现有钢桥结构计算方法存在不能准确反映桁架杆件之间和杆件与桥面之间的连续性能、忽略桁架杆件横向尺寸效应等问题，分析全壳单元模型对常用钢桥结构的适用性，提出建立与实现大跨钢桥全桥全壳单元模型的方法，同时分析指出这一结构分析计算新方法所具有的通用性。
There are some shortcomings in traditional methods of structural analysis based on pinjointed truss members and beam elements,such as inaccurate description of connection among the members of truss and between the members and deck system,and overlooking effects on cross width of members of truss. Suitability of all shell elements model in steel bridges is analyzed in this article. The method of establishment and implementation on this computing model of 3D structural analysis in long span steel bridges is presented. The new model is universal in the computation of steel bridges.
出处
《铁道工程学报》
EI
1997年第2期23-28,共6页
Journal of Railway Engineering Society
基金
国家自然科学基金
铁道部科技发展计划项目
关键词
桥梁工程
钢桥
结构分析
全壳模型
bridge engineering
steel bridge
sturctural analysis
all shell elements model
