宽幅单索面斜拉桥钢箱梁剪力滞效应分析  

Study on Shear Lag Effect of Cable-stayed Bridge with Single Cable Plane Wide Support System

作　　者：李新春 李永波 LI Xinchun;LI Yong bo(Guangzhou Municipal Engineering Design&Research Institute Co.Ltd.,Guangzhou 510060,China;Jiangsu College of Engineering and Technology,Nantong 226007,China)

机构地区：[1]广州市市政工程设计研究总院有限公司,广东广州510060 [2]江苏工程职业技术学院,江苏南通226007

出　　处：《天津建设科技》2023年第5期23-25,39,共4页Tianjin Construction Science and Technology

摘　　要：为了解斜拉索索力在主梁中的传递规律及主梁的剪力滞效应情况,以清远市某大桥主桥为研究背景,通过建立有限元模型,研究单索面宽幅斜拉桥主梁在成桥阶段的受力特性及剪力滞效应,分析结果显示,该桥主梁有合理的受力且剪力滞效应处于可接受范围。In order to understand the transmission law of cable force in the main girder and the shear lag effect of the main girder,taking a bridge in Qingyuan City as the research background,this paper studies the mechanical characteristics and shear lag effect of a wide cable-stayed bridge with single cable plane in the bridge forming stage by establishing a finite element model.The analysis results show that the stress of the main girder is rea-sonable and the shear lag effect is acceptable.

关 键 词：宽幅单索面斜拉桥 钢箱梁 剪力滞 

分 类 号：U441[建筑科学—桥梁与隧道工程]