在役桥梁实测荷载横向分布系数研究与应用  

Investigation and Application of Transverse Load Distribution Coefficients Measured in Existing Bridge

作　　者：李松辉[1] 李冲[1] 闫明[1] 

机构地区：[1]山东科技大学土木建筑学院,山东青岛266510

出　　处：《山东科技大学学报（自然科学版）》2009年第5期27-29,34,共4页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：交通部科技攻关项目(2005353341190);山东省交通科技项目(2005Y006);山东省自然科学基金项目(Y2007F48)

摘　　要：实测荷载横向分布系数是桥梁荷载试验的重要内容,该指标是评定桥梁横向传力性能的主要依据。结合某装配式空心板桥的跨中挠度测试结果,讨论了基于实测挠度计算荷载横向分布系数的方法。计算结果表明,《公路桥梁承载能力检测评定规程》(送审稿)建议的实测荷载横向分布系数计算公式没有考虑横向布载车辆数的影响,在静载数据处理中应予以修正。The measurement of transverse load distribution coefficient is very important in the loading test of bridges, and it is the main basis in evaluating the performance of transverse force transmission of bridges. In this paper, an approach was proposed for calculating the transverse distribution coefficient based on the measured mid-span deflectionofa fabricated hollow slab bridge. Results showedtbat the influences of the number of vehicles in transverse load was neglected in calculating the transverse load distribution cocfficient proposed by《Specification for Inspection and Evaluation of I.oad bearing Capacity of Highway Bridge》, which should be modified in the data processing.

关 键 词：桥梁 荷载横向分布系数 荷载试验 挠度 

分 类 号：U446[建筑科学—桥梁与隧道工程]