| 大跨径混合梁斜拉桥合龙技术研究与实践 |
| |
| 引用本文： | 刘明虎,谭皓,徐国平,赵灿晖.大跨径混合梁斜拉桥合龙技术研究与实践[J].桥梁建设,2011(4). |
| |
| 作者姓名： | 刘明虎 谭皓 徐国平 赵灿晖 |
| |
| 作者单位： | 1. 中交公路规划设计院有限公司,北京,100088
2. 西南交通大学土木学院,四川成都,610031 |
| |
| 摘 要： | 为研究大跨径混合梁斜拉桥中跨合龙方案与关键技术,以主跨926 m的鄂东长江公路大桥为背景进行研究。综合考虑该桥结构受力与构造特点,通过温度、顶推力及结构局部承载力的分析,确定该桥采用加载合龙方案。合龙过程中实施了合龙口线形调整、塔梁临时约束解除与顶推、劲性骨架设置等关键技术,使该桥中跨合龙始终处于受控状态,合龙过程十分顺利,实现了高精度合龙。
|
| 关 键 词： | 鄂东长江公路大桥 斜拉桥 混合梁 合龙 方案 无应力状态控制法 桥梁施工 |
Research and Practice of Closure Techniques for Long Span Hybrid Girder Cable-Stayed Bridge |
| |
| LIU Ming-hu,TAN Hao,XU Guo-ping,ZHAO Can-hui.Research and Practice of Closure Techniques for Long Span Hybrid Girder Cable-Stayed Bridge[J].Bridge Construction,2011(4). |
| |
| Authors: | LIU Ming-hu TAN Hao XU Guo-ping ZHAO Can-hui |
| |
| Institution: | LIU Ming-hu1,TAN Hao1,XU Guo-ping1,ZHAO Can-hui2(1.CCCC Highway Consultants Co.,Ltd.,Beijing 100088,China,2.School ofCivil Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
| |
| Abstract: | To make research on the central span closure schemes and the related key techniques for long span hybrid girder cable-stayed bridge,the Edong Changjiang River Highway Bridge with a main span of 926 m was taken as an example and studied.The structural force conditions and structural characteristics of the highway bridge were comprehensively taken into account and the closure scheme of loading was determined for the bridge through analysis of the temperature load,pushing force and local bearing capacity of th... |
| |
| Keywords: | Edong Changjiang River Highway Bridge cable-stayed bridge hybrid girder closure scheme unstressed state control method bridge construction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
