高速公路上跨桥整体顶升技术  

Integral Deck Jacking-up Techniques for a Bridge Spanning Expressway

作　　者：尹天军 

机构地区：[1]上海先为土木工程有限公司,上海200235

出　　处：《世界桥梁》2009年第1期61-63,67,共4页World Bridges

摘　　要：通过工程实例介绍整体顶升技术在某高速公路上跨桥梁净空改造中的应用,为高速公路既有上跨桥梁净空不足这一工程难点提供一个新的解决方法。采用整体顶升技术对既有桥梁的净空不足问题进行改造,与拆除重建桥梁相比,能节约工程造价、社会效应影响较小、工期较短、环境污染小。This paper introduces the application of the integral deck jacking-up techniques to the height clearance improvement of a bridge spanning expressway through practical example. The application of the techniques provides a new solution to such a problem of inadequate height clearance of existing bridges spanning expressway. In comparison to the ways of dismantling and reconstruction, the clearance improvement of the existing bridges by the integral deck jacking-up techniques can save construction cost, minimize social influences and have short construction time schedule and little pollution to the environment.

关 键 词：既有桥梁 整体顶升技术 抱柱 顶升限位 净空改造 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]