连续曲线梁桥整体调坡顶升关键技术  

Key Technology of Overall Slope Adjusting and Jacking for Continuous Curved Beam Bridge

作　　者：尹天军 YIN Tianjun

机构地区：[1]上海先为土木工程有限公司,上海市200331

出　　处：《城市道桥与防洪》2020年第6期147-150,M0016,共5页Urban Roads Bridges & Flood Control

摘　　要：以南通市长江北路西延(沿海公路-城北大道)高架桥为工程背景,对连续曲线梁桥的整体调坡顶升方案进行了系统的研究,并就连续曲线梁调坡顶升过程中,如何保持等比例顶升、保证千斤顶与上部箱梁垂直、限制千斤顶水平位移等方面提出了解决方法,相关技术方案及施工方法可为同类桥梁规划改造提供参考。Based on the engineering background of Nantong North Changjiang Road West Extension(Yanhai Highway-Chengbei Avenue)Viaduct,the overall slope adjusting and jacking scheme of continuous curved beam bridge is systematically studied.The solution is proposed how to keep the equal proportion of jacking,to guarantee the jack to be perpendicular with the upper box beam and to limit the horizontal displacement of the jack in the process of slope adjusting and jacking of continuous curved beam.The relative technical scheme and the construction method can be referred for the planning and reconstruction of the similar bridges.

关 键 词：连续曲线梁桥 调坡顶升 等比例顶升 施工技术 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]