移动荷载下横向损伤对T梁桥边梁荷载横向分布的影响  

Effect of Transverse Damage on Lateral Load Distribution of Side Beam of T-beam Bridge Under Moving Load

作　　者：李文[1] 杜伟强[1] 武先梅 LI Wen;DU Weiqiang;WU Xianmei(College of Civil and Architecture Engineering,Northeast Petroleum University,Daqing 163318,China)

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318

出　　处：《徐州工程学院学报（自然科学版）》2020年第3期54-58,77,共6页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家自然科学基金项目(51308028);黑龙江省省属高校基本业务费项目(2019YDL-21)。

摘　　要：为研究移动荷载作用下带有横向损伤的T梁桥荷载横向分布的变化规律,对可能存在的破坏形式以及破坏所处位置的不同,提出9种工况,并建立相关的有限元模型;利用有限元软件,模拟得出9种工况下的边梁横向分布系数,并与无损伤状态下的进行对比.研究结果表明:移动荷载作用下的T梁桥的横隔梁产生横向连接损伤后,结构横向分布荷载的能力会受到较大影响;不同位置的横向损伤,对T梁桥的影响会有不同变化.In order to study the variation of lateral load distribution of T-beam bridge with transverse damage under moving load,nine kinds of working conditions are proposed for the possible failure modes and the different locations of the failure,and relevant finite element models are established.Through simulation,the lateral load distribution of side beams under nine working conditions is obtained and compared with that under non-damage condition.The results show that the lateral load distribution capacity of T-beam bridge under moving load will be greatly affected after the transverse connection damage of the diaphragm beam occurs.When the location of transverse damage is different,the influence of T-beam bridge will be different.

关 键 词：T梁桥 移动荷载 横向分布损伤 有限元 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]