摘要
斜拉桥在悬臂施工过程中由于边跨和中跨斜拉索的张拉过程并不同步,锚固结构在施工过程中会承受较大的偏载作用,并且此时拉索的竖向分力较小,对锚室的抗倾覆不利,需要验算锚室在施工过程中的抗倾覆稳定性。利用有限元软件Ansys进行三维有限元模型的计算分析,对榕江大桥索塔集中式锚室的抗倾覆性在施工和运营过程中可能出现的两种情况进行使用性能分析。
The cable-stayed bridge’s tensioning process is not synchronized during the cantilever construction because of the side span and middle span cable,so that the anchoring structure in construction process will be under partial load.At this time,the vertical component of cable force is smaller,which is bad for anchor room.So checking the anchor chamber in the resistive overturning stability in the process of construction is very necessary.In this paper,the finite element software Ansys is used to analyze three-dimensional finite element model of the Rongjiang bridge cable tower centralized anchor chamber calculation,and analyze the overturning resistance performance in the process of construction and operation.
作者
谭海洲
韩阿慧
TAN Haizhou;HAN Ahui(Guangdong Highway Co.,Ltd.,Guangzhou 510000,China;Engineering Design and Research Institute,Changan university,Xian 710000,China)
出处
《交通科技与经济》
2019年第6期55-58,共4页
Technology & Economy in Areas of Communications
关键词
斜拉桥
集中式
索塔
锚室
抗倾覆
有限元
cable-stayed bridge
centralized
cable tower
anchor chamber
resistance to capsizing
finite element
