连续刚构桥对顶合龙技术研究  

Counter-thrust Technique for Midspan Closure of Continuous Rigid Frame Bridge

作　　者：郭建强 戴玮[2] 刘钊[2] 

机构地区：[1]南京市地下铁道工程建设指挥部,江苏南京210008 [2]东南大学土木工程学院,江苏南京210096

出　　处：《现代交通技术》2010年第3期52-54,共3页Modern Transportation Technology

摘　　要：阐述了对顶合龙的技术原理,给出了对顶位移量的确定原则和对顶力大小的简化计算公式,探讨了对顶合龙实施中的技术要点,最后通过一项工程实例分析,说明了对顶合龙技术对桥墩变形及受力的改善效果。The principle of the counter-thrust technique is expounded in this paper. The method for determining the relative displacement is discussed and a simplified formula for the counter-thrust force is derived. The technical points for construction are also delineated. A case study is exemplified to justify the effectiveness of the counter-thrust technique.

关 键 词：混凝土桥梁 连续刚构桥 合龙 对顶 

分 类 号：U445.4[建筑科学—桥梁与隧道工程]