曲线连续箱梁桥偏载系数研究  

Research on Partial Load Coefficient of Curved Continuous Box-girder Bridge

作　　者：严亮亮 Yan Liangliang(Ningbo Economic and Technological Development Zone Urban Construction Design Co.,Ltd.,Ningbo 315800,China)

机构地区：[1]宁波经济技术开发区城建设计有限公司,浙江宁波315800

出　　处：《市政技术》2021年第9期58-61,共4页Journal of Municipal Technology

摘　　要：随着城市交通的快速发展,近年来国内建造了大量曲线箱梁桥,然而在设计过程中对其活载偏载系数的取值一般沿用直线桥的经验值。通过有限元方法对某曲线连续箱梁桥进行分析,计算了该桥由于翘曲效应引起的活载偏载系数。通过与目前普遍采用的经验值对比,分析了经验值存在的不足。该研究成果对类似桥梁偏载系数的取值有一定参考价值。With rapid urban traffic development,a large number of curved box-girder bridges have been built in China in recent years.However,its’value of live load partial load coefficient is still followed the empirical value of linear bridge during the design.In this paper,a curved continuous box-girder bridge is analyzed by finite element method,and its live load partial load coefficient caused by warping effect is calculated.By comparing with empirical values commonly used,the shortcomings are analyzed.It has certain reference for similar value of bridges partial load coefficient.

关 键 词：曲线连续箱梁桥 偏载系数 有限元分析 

分 类 号：U448.42[建筑科学—桥梁与隧道工程]