津沪联络线矮塔斜拉桥中跨合拢方案设计  

Design of closure scheme of Jinhu connecting line partial cable-stayed bridge middle span

作　　者：卢明辉[1] 刘晓红 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]河南广厦集团广厦建筑工程有限公司,河南平顶山467001

出　　处：《河南城建学院学报》2011年第2期12-15,共4页Journal of Henan University of Urban Construction

摘　　要：针对津沪联络线矮塔斜拉桥的工程情况,就中跨合拢块的施工方案确定和施工步骤的实施过程做了具体阐述。介绍该桥中跨合拢段施工时刚性支撑骨架的安装、合拢段锁定、混凝土浇筑等施工工艺,进行合拢段刚性支撑骨架在温度作用下的受力分析。According to the engineering case of Jinhu connecting line partial cable-stayed bridge,the construction methods and construction program for the closing segment of middle span were described in detail in this paper.The technology such as the installation of the rigid support frame and the fixing of the closing segment and the cast-in-place technology for the concrete were also described in detail.The inner force of the rigid support frame under temperature load was specially analyzed.

关 键 词：矮塔斜拉桥 悬臂施工 合拢方案 温度内力 

分 类 号：U442.59[建筑科学—桥梁与隧道工程]