顶推法拆除钢筋混凝土连续箱梁桥方案研究  

Research of Incremental Launching Method Dismantle Reinforced Concrete Continuous Box Girder Bridge Proposal

作　　者：陈明芳 陈海兵 彭国婧 

机构地区：[1]江西省交通科学研究院,江西南昌330038 [2]江西省公路开发总公司,江西南昌330038 [3]江西省赣粤工程公司,江西南昌330038

出　　处：《公路工程》2014年第6期200-203,共4页Highway Engineering

摘　　要：采用顶推法实施在不中断交通的条件下拆除跨越高速公路钢筋混凝土连续箱梁桥,对主梁的支撑形式进行了根据顶推施工的需求改造,并分析研究了顶推施工过程及顶升桥梁更换支座施工中主梁、桥墩的结构受力,结果表明方案安全、可行。dismantle the reinforced concrete continuous box girder bridge cross highway without in- terrupting traffic conditions by incremental launching method, change the form of the support of bridge, Analysis the internal forces and displacement of the girder and pier under the Incremental Launching the construction process and the lifting bridge replacement bearing construction, The results show that the program is safe and feasible.

关 键 词：顶推 钢筋混凝土 连续箱梁 拆桥 

分 类 号：U445.462[建筑科学—桥梁与隧道工程]