天津建设科技2024，Vol.34Issue(4)：40-44,5.DOI:10.3969/j.issn.1008-3197.2024.04.010
双塔无背索斜拉桥施工技术方案比选
Comparison and Selection of Construction Technology Schemes for Double Tower Cable-Stayed Bridges Without Back Cables
周跃 1张百泉 2蔡铁臣2
作者信息
- 1. 陕西省交通规划设计研究院有限公司,陕西西安 710000
- 2. 中国建筑第八工程局西北分公司,陕西 西安 710000
- 折叠
摘要
Abstract
Taking the Weihe River Bridge as the engineering background,and combines the construction environment and structural characteristics of the steel inclined tower of the main bridge to demonstrate and analyze the con-struction plan of the main tower.The main tower is divided into twenty-three sections,and the construction of the main tower is carried out quickly using a segmented lifting scheme.Through finite element simulation anal-ysis of different construction schemes,the stress at the tower root and the maximum deformation of the tower under the key construction processes of the cantilever assembly,bracket assembly,and synchronous installa-tion of partial cable-stayed cable schemesare obtained.It is found that the stress at the root and deformation at the top of the main tower in the synchronous tension cable scheme are significantly reduced compared to the non support method,and compared to the support method scheme,the deformation in all directions except for the Y direction is reduced.关键词
无背索斜拉桥/钢主塔/悬臂拼装/支架法拼装/同步安装Key words
cable stayed bridge without back cable/steel main tower/cantilever assembly/bracket assembly/synchro-nous installation分类
交通工程引用本文复制引用
周跃,张百泉,蔡铁臣..双塔无背索斜拉桥施工技术方案比选[J].天津建设科技,2024,34(4):40-44,5.
