摘要
针对独塔斜拉桥钢拱塔竖转施工过程中竖转体系的稳定性问题,以武汉市高新二路独塔斜拉桥为研究背景,介绍了一种竖转架和钢拱塔相结合的双向牵引的自平衡竖转体系.利用通用有限元分析软件ANSYS建立独塔斜拉桥全桥模型,并在此基础上对独塔斜拉桥进行了稳定性计算分析.计算结果表明,在竖转施工过程中该竖转体系不会产生第一类和第二类失稳现象.最后,提出了两条增强该竖转体系稳定性的措施,以确保竖转施工安全顺利地进行和独塔斜拉桥的正常使用.
Based on the single tower cable-stayed bridge on Gaoxin 2nd Road in Wuhan, a vertical rota- tion system incorporating vertical turret and steel arch pylon was proposed. The model of the whole bridge was built by the FEM program ANSYS and the stability of the single tower cable-stayed bridge was analyzed. The vertical rotation system won＇t lose it＇s balance in the construction process accord- ing to the calculation results. Finally, two preventative measures were proposed to ensure the stability of the vertical rotation systeml and the complete function of the single tower cable-stayed bridge.
出处
《武汉理工大学学报（交通科学与工程版）》
2016年第1期16-20,共5页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
湖北省自然科学基金面上项目资助(批准号:2013CFB342)
关键词
独塔斜拉桥
竖转施工
稳定性分析
钢拱塔
竖转架
single tower cable-stayed bridge
vertical rotation construction~ stability analisis
steel arch pylon
vertical turret
