摘要
结合拟建的自锚式斜拉-悬索协作体系桥,探讨并分析了新颖的"先斜拉后协作法"施工方案。主梁施工可大致分为四个施工阶段,其中主梁中跨悬臂吊装和体系转换阶段是"先斜拉后协作法"施工方案的核心和重难点。通过建立空间有限元模型,分析了塔梁关键截面的应力和变形。计算初步表明"先斜拉后协作法"施工方案具有安全可控性。
The novel“cable-stayed to cooperative state”construction scheme was discussed and analyzed with a self-anchored cable-stayed-suspension bridge that was prepared to built in the future.In this scheme,the construction process of girder can be roughly divided into four stages.Among them,the mid-span cantilever hoisting and system conversion construction are the core and difficult points of the scheme.The stress and deformation of the key section of the tower and girder are analyzed by establishing the 3D FEA model.The calculation results preliminary show that the proposed scheme is within the control range.
作者
李中培
顾民杰
阮雪琴
李松波
LI Zhongpei;GU Minjie;RUAN Xueqin;LI Songbo(Jiaxing Vocational Technology College,Zhejiang Jiaxing 314036,China;Hangzhou Vocational College of Science and Technology,Hangzhou 311402,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China)
出处
《低温建筑技术》
2020年第5期126-129,共4页
Low Temperature Architecture Technology
基金
嘉兴职业技术学院2019年度校立科研项目:自锚式斜拉-悬索协作体系桥施工过程研究(jzyy201918)。
关键词
自锚式斜拉-悬索协作体系桥
先斜拉后协作法
探讨
self-anchored cable-stayed-suspension bridge
cable-stayed to cooperative state
discussion
