混合梁斜拉桥钢混结合段剪力连接件受力特性分析  

Analysis of mechanical characteristics of shear connectors in steel-concrete composite section of hybrid girder cable-stayed bridge

作　　者：刘嘉军 郭皆焕 张南松 LIU Jiajun;GUO Jiehuan;ZHANG Nansong(Zhejiang Zhongjiao tongli Engineering Design Co.,Ltd.,Zhejiang Hangzhou 310000 China)

机构地区：[1]浙江中交通力工程设计有限公司,浙江杭州310000

出　　处：《山东交通科技》2024年第3期38-40,44,共4页

摘　　要：以某大跨混合梁斜拉桥钢混结合段为研究背景,通过ABAQUS有限元软件建立钢混结合段模型,分析最不利轴力荷载工况作用下和最不利弯矩工况作用下钢混结合段剪力连接件受力特性。研究结果表明:在最不利轴力荷载工况和最不利弯矩荷载工况作用下,钢混结合段剪力连接件的承载能力满足设计要求,且腹板和加劲肋处PBL剪力连接件可有效抑制该处钢混界面间相对滑移。The steel-concrete composite section of a long-span hybrid girder cable-stayed bridge is taken as the research background.The steel-concrete composite section model is established by ABAQUS finite element software,and the mechanical characteristics of shear connectors in steel-concrete composite section under the most unfavorable axial force load condition and the most unfavorable bending moment condition are analyzed.The results show that under the most unfavorable axial force load condition and the most unfavorable bending moment load condition,the bearing capacity of the shear connector of the steel-concrete composite section meets the design requirements,and the PBL shear connector at the web and stiffener can effectively suppress the relative slip between the steel-concrete interface.

关 键 词：桥梁工程 混合梁斜拉桥 受力特性 有限元分析 剪力连接件 

分 类 号：U441[建筑科学—桥梁与隧道工程]