摘要
结合实际工程,以有限元理论为基础,利用斜拉桥最大悬臂状态索塔所承受的索力,建立钢索塔板壳有限元模型,用只受拉杆单元模拟斜拉索。利用钢索塔的板壳有限元模型,分析钢索塔的纵向加劲肋的间距、厚度、宽度对钢索塔第一类稳定的影响,得到肋板参数的合理取值。
Combined with the practicle project, based on finite element theory, using cable force under the maximum cantilever of cable-stayed bridge tower, finite element model of steel tower shell is built, and the cable is simulated with only-tension link elements. Using finite element model of steel tower shell, the influence of spacing, thickness, width of the steel tower longitudinal stiffeners on first stability of cable tower is analyzed, the reasonable parameters of longitudinal diaphragm are got.
出处
《交通标准化》
2013年第12期92-95,共4页
Communications Standardization
关键词
钢索塔
有限元
第一类稳定
纵向加劲肋
steel pylon
finite element
the first class stableness
longitudinal stiffener
