连续曲梁中支点合理预偏心距的确定  

The Determination of Pivots Pre-eccentricity Distance on the Curved Continuous Girder

作　　者：李新平[1] 陈宜健[1] 陈湖[1] 

机构地区：[1]华南理工大学土木与交通学院,广东广州510641

出　　处：《公路工程》2010年第6期22-25,共4页Highway Engineering

基　　金：华南理工大学亚热带建筑科学国家重点实验室开发课题(2008KA07)

摘　　要：针对独柱支承连续曲梁的预偏心距设计取值问题,考虑曲线桥梁的弯扭耦合作用,推出了两跨连续曲梁中支点预偏心距的计算公式,并对不同曲率半径的弯桥进行了结果比对,分析了误差来源,最后对公式进行了修正。In this paper,according to the value in the pre-eccentric distance design of curved continuous girder with single-column supports,and considering the curved bridge coupling of bending and torsion,a formula of the pivots pre-eccentric distance has been derived to the two-span curved continuous girder.Comparison is made in different radius of the curved bridge,then analyzed the error,amended the formula.

关 键 词：连续曲梁 偏心距 均布扭矩 

分 类 号：U448.215[建筑科学—桥梁与隧道工程]