【摘要】 提出一种新型 8～ 2 0结点虚拟层合块体单元 ,利用该单元能有效地对箱型截面桥梁结构进行空间有限元分析。应用该单元对一座钢筋混凝土空心板梁桥进行了空间分析 ,计算结果与实桥测试值吻合较好。利用该单元对箱型截面桥梁结构进行空间分析时 ,可显著减少单元数目 ,提高计算效率 ,且具有较高的精度 ,有良好的工程应用前景更多还原

【Abstract】 In this paper,a new virtual laminated 8～20 nodes block element that can analyzes box shape girder bridges effectively is developed.As the application of the presented method,the linear FE analysis of a RC slab bridge is completed.The analytical results are coincided well with those of bridge tests.The element is effective and accurate in analyzing box shape girder bridges and has wide applications in bridge engineering.更多还原