厦漳大桥大跨度斜拉桥索塔锚固区的局部分析

厦漳大桥大跨度斜拉桥索塔锚固区采用钢锚梁、钢牛腿的结构形式,构造复杂且重要性突出,有必要进行局部分析。该文运用大型有限元分析软件ANSYS的三维板壳和三维实体单元建立空间模型,其边界条件和荷载工况考虑了施工过程及成桥阶段的实际情况。通过计算,提供索塔锚固区构件定量的力学性能分析数据,并为指导和优化设计提供依据及意见。

Analysis on Partial Cable-Pylon Anchorage Zone of Long-span Cable-stayed Bridge of Xiazhang Bridge

The cable-pylon anchorage zone of long-span cable-stayed bridge of Xiazhang Bridge is the structural type of steel anchor girder and steel bracket.It is necessary to analyze the partial zone because of its complex constitution and highlighted significance.The article applies the three-dimensional shell and three-dimensional solid element of large finite element analysis software ANSYS to set up the spatial model.Its boundary condition and loading condition consider the practical condition of the construction period and bridge completion period.The article provides the mechanics performance analysis data of the component quantization in the cable-pylon anchorage zone through the computation,which provides the basis for the instruction and optimization of design.