摘要
不等跨布置的矮塔斜拉桥主梁节段施工时主边跨斜拉索索力及结构位移并不相同,因而其体系的受力性能及施工技术具有重要的研究价值。以长湾澧水大桥为工程背景,采用大型有限元软件Midas对不等跨矮塔斜拉桥结构体系进行整体建模,针对不对称节段施工时斜拉索受力状态及节段施工位移进行计算分析,以确定施工方案及监控方案。
The cable forces and structural displacements of the main side span cable stays are not the same during the construction of the main beam section of the pylon cable-stayed bridge with unequal spans.Therefore,the mechanical performance and construction technology of the system have important research value.This article takes the Changwan Lishui Bridge as the engineering background and uses the large-scale finite element software Midas to model the structural system of the unequal-span low-tower cable-stayed bridge.Displacement is calculated and analyzed to determine the construction plan and monitoring plan.
出处
《建筑技术开发》
2020年第22期70-71,共2页
Building Technology Development
基金
2017重庆市民生项目"大跨不对称混凝土斜拉T构桥施工关键技术研究"项目(cstc2016shmszx30028)。
关键词
不等跨
斜拉桥
合龙
无应力
unequal span
cable-stayed bridge
closure
unstressed
