限位技术在桥梁调坡顶升中的应用  

Application of Position-limit Technology in the Project of Bridge's Gradient-adjustment and Lift-up

作　　者：王海 赵殿峰 吴二军[2] 

机构地区：[1]上海同罡建筑工程有限公司,上海201101 [2]河海大学土木与交通学院,江苏南京210098

出　　处：《施工技术》2014年第17期67-69,共3页Construction Technology

摘　　要：在桥梁调坡顶升过程中,由于桥梁体位的变化、设备安装、施工水平、控制精度及控制手段的差异,在顶升过程中实际移动的轨迹与理论轨迹线往往存在一定的偏差,这种偏差就需要借助于导向装置进行调整。通过济南段店立交连续梁桥调坡顶升工程的实例,详细阐述了桥梁顶升过程中产生纵、横向位移的原因,提出横向限位和纵向限位技术措施。In the process of bridge ’ s gradient-adjustment and lift-up, due to the bridge ’ s position change, the difference in equipment installation, influences of construction level, control precision and control measures, there is always a certain degree of deviation between the actual movement path and the theoretical one. Adjusting the deviation required the help of guiding device. This paper elaborates the causes of lateral and longitudinal spacing during bridge lift-up with an actual project, that is the gradient adjustment and jacking-up of Ji’ nan Duandian interchange continuous girder bridge. This paper also puts forward effective technical measures of lateral and longitudinal spacing-limit.

关 键 词：桥梁工程 顶升 调坡 横向限位 纵向限位 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]