| 混合梁斜拉桥索塔与下横梁异步施工控制分析 |
| |
| 引用本文： | 陈月萍,张建飞,胡强圣.混合梁斜拉桥索塔与下横梁异步施工控制分析[J].安庆师范学院学报(自然科学版),2015(1):46-49. |
| |
| 作者姓名： | 陈月萍 张建飞 胡强圣 |
| |
| 作者单位： | 安庆职业技术学院 建筑工程系,安徽 安庆,246000 |
| |
| 基金项目： | 中央财政支持的建筑技术实训基地项目，安徽省教育厅、财政厅支持的省级示范实验实训中心项目(20101474)。 |
| |
| 摘 要： | 某特大桥索塔采用钻石型混凝土索塔,索塔总高度为177.91 m,在下塔柱与中塔柱相交位置设置一道下横梁。施工中塔柱与下横梁采用异步施工,即先将中塔柱施工到第二节段再进行下横梁施工。期间,索塔会出现悬臂状态,故索塔的薄弱截面易出现拉应力,这在桥梁施工中是要避免的,为此,先通过模拟分析异步施工过程对索塔的影响,给出相应的施工控制措施。
|
| 关 键 词： | 混合梁斜拉桥 索塔 异步施工 主动支撑 施工阶段 |
Stress Analysis of Asynchronous Construction of Pylon and Bottom End Rail of Hybrid Girder Cable-stayed Bridge |
| |
| CHEN Yue-ping,ZHANG Jian-fei,HU Qiang-sheng.Stress Analysis of Asynchronous Construction of Pylon and Bottom End Rail of Hybrid Girder Cable-stayed Bridge[J].Journal of Anqing Teachers College(Natural Science Edition),2015(1):46-49. |
| |
| Authors: | CHEN Yue-ping ZHANG Jian-fei HU Qiang-sheng |
| |
| Institution: | CHEN Yue-ping;ZHANG Jian-fei;HU Qiang-sheng;Department of Building Engineering,Anqing Vocational and Technical College; |
| |
| Abstract: | A bridge is used with the diamond type concrete pylon, and its total height is 177.91 m.In the intersection position of the Middle-Pylon and the Down-Pylon is the bottom end rail.The construction method of the pylon and bottom end rail are asynchronous constructed, which is we put the middle-pylon into the second construction segment, and then go on the bottom end rail.During the peri-od, pylon will appear cantilever state, so the weak section prone to tensile stress;it is to be avoided in the bridge construction.The pur-pose of this paper is to simulate asynchronous process, to analyze the influence to the tower, and to give the corresponding construction measures. |
| |
| Keywords: | hybrid girder cable-stayed bridge tower asynchronous construction active support construction stage |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
