摘要
基于受力和施工控制方面的原因,转体斜拉桥基本采用独柱式,双柱双索面转体斜拉桥尚无设计先例,双柱双索面转体斜拉桥下塔柱选型对结构安全性和景观性有较大影响,因此开展双塔双索面转体斜拉桥下塔柱选型研究非常有必要。结合山东邹城斜拉桥转体设计方案,采用ANSYS软件应用混合有限元方法建立倒梯形和矩形两种下塔柱方案全桥有限元模型,对两种下塔柱方案进行比较分析,确定一种合理的下塔柱方案,为该类转体桥梁设计提供参考。
For the reason of mechanics behaviors and construction control,single-column pylon instead of double-column pylon is mostly used in the design of rotational cable-stayed bridge. The selection of lower pylon column for rotational cablestayed bridge with double pylon and double cable plane is necessary as its great influence on the landscape effect and structural safety. This paper took the design of rotational cable-stayed bridge in Zoucheng as background,ANSYS software was used to establish the whole bridge FEM model for different lower pylon column types which was respectively inverted trapezoid and rectangular. A comparative analysis of two types of design schemes for lower pylon column was carried out to determine the rational scheme,and the conclusion could be used as a reference for the design of similar rotational bridge.
出处
《铁道建筑技术》
2017年第1期62-65,共4页
Railway Construction Technology
基金
中国铁道建筑总公司科技研究开发计划项目(10-57C)
关键词
下塔柱选型
转体斜拉桥
力学性能分析
selection of lower pylon column
rotational cable-stayed bridge
mechanical property analysis
