大跨度连续刚构桥校验系数影响分析  

Impact of the Calibration Coefficient for Long-Span Continuous Rigid Frame Bridge

作　　者：黄己伟[1] 刘丹[1] HUANG Jiwei;LIU Dan(Sichuan College of Architectural Technology,Deyang 618000,China)

机构地区：[1]四川建筑职业技术学院,四川德阳618000

出　　处：《河南科技》2022年第8期65-68,共4页Henan Science and Technology

基　　金：2020年四川建筑职业技术学院院级课题项目“基于落石灾害威胁段边坡坡段特征优化设计研究与应用”(2020KJ05)。

摘　　要：连续刚构桥校验系数受到多种参数影响,这些参数的改变会影响桥梁结构安全评价。为研究大跨度连续刚构桥校验系数影响因素,以洛古大桥为背景,通过Midas有限元软件建立数值模型,并基于桥梁荷载试验,探讨了桥面铺装作用对桥梁校验系数的影响。结果表明:考虑桥面铺装作用后,应力校验系数增大5.3%~11.3%,挠度校验系数增大6.3%~8.2%。分析成果可以为连续刚构桥荷载试验和相关研究提供参考依据。The calibration coefficients of continuous rigid frame bridges are influenced by various param⁃eters,and the changes of these parameters can affect the structural safety evaluation of bridges.In order to study the factors influencing the calibration coefficient of large span continuous rigid bridge,the bridge space finite element model was established using Midas/Civil 2019 in the background of Luogu Bridge,and the influence of deck pavement on calibration coefficient was investigated based on bridge loading tests.The results show that the stress calibration coefficient increases by 5.3%~11.3%and the deflection calibration coefficient increases by 6.3%~8.2%after considering the deck pavement.The re⁃sults of the analysis can provide a reference for continuous rigid bridge load testing and related research.

关 键 词：桥梁 连续刚构桥 校验系数 桥面铺装 

分 类 号：U448.23[建筑科学—桥梁与隧道工程]