顶升技术在城市桥梁改造中的应用  

Application of Jacking Technology in Municipal Bridge Retrofitting

作　　者：邱湧彬 刘世忠[2] 李丽园[2] 

机构地区：[1]中交第三航务工程局有限公司厦门分公司,福建厦门361006 [2]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《施工技术》2013年第5期62-66,共5页Construction Technology

基　　金：国家自然科学基金项目(50968008)

摘　　要：厦门市仙岳路的改造对5联不同类型的桥梁提出了顶升施工要求。根据这5座桥梁各自的特点,较为详细地介绍了顶升方案的制订,并依据三维精细有限元分析结果制订了顶升技术方案,采用先进的监测控制设备作为顶升技术保障,从而实现5座桥梁顶升施工全过程的安全顺利进行。对城市大宽跨比直、弯连续箱梁进行不等距大位移顶升施工以及监测控制等关键技术进行了总结。During the retrofitting of the Xianyue Road in Xiamen,five bridges of different types were required to be jacked.Detailed jacking schemes were designed according to the characteristics of the five bridges.The jacking technique was determined according to three-dimensional refined finite element analysis.Advanced monitoring devices were adopted to assist jacking technique.With all these measures,the jacking construction of the five bridges was successfully finished.The paper summarized key technique for large displacement uniform jacking construction and monitoring of urban large width-span ratio linear curved continuous box girders.

关 键 词：桥梁工程 顶升 有限元法 改造 施工技术 

分 类 号：TU746[建筑科学—建筑技术科学] U445.72[建筑科学—桥梁与隧道工程]