行车荷载作用下HDC弧形对插式桥梁伸缩缝动力响应分析
Dynamic Response Analysis of HDC Arc Plug-in Bridge Expansion Joint Under Traffic Load
谭宗林 1龙晨杰 1刘强 2张鸿志 2位可可2
作者信息
- 1. 广西南天高速公路有限公司,广西 南宁 530000
- 2. 河南省交通规划设计研究院股份有限公司,河南 郑州 450000
- 折叠
摘要
[目的]研究HDC弧形对插式桥梁伸缩缝在车辆荷载作用下的受力状态.[方法]采用ABAQUS有限元软件建立HDC弧形对插式桥梁伸缩缝三维数值模型,对比分析不同荷载作用下伸缩装置竖向位移、弯拉应力以及锚固区混凝土弯拉应力等力学响应.[结果]竖向静力荷载对HDC弧形对插式桥梁伸缩装置和锚固区混凝土的力学响应影响要大于双向静力载荷对HDC弧形对插式桥梁伸缩装置和锚固区混凝土的力学响应影响,且两种车辆荷载作用下HDC弧形对插式桥梁伸缩装置和锚固区混凝土均未出现破坏.[结论]不对HDC弧形对插式桥梁伸缩装置进行焊接或减少焊接,不影响HDC弧形对插式桥梁伸缩缝的正常使用.
Abstract
[Purposes]This paper aims to study the stress state of HDC arc on the expansion joint of a plug-in bridge under vehicle load.[Methods]The 3D numerical model of HDC arc splice bridge expan-sion joint was established by ABAQUS finite element software,and the mechanical response such as ver-tical displacement,flexural and tensile stress of expansion device and flexural and tensile stress of con-crete in anchorage area were compared and analyzed under different loads.[Findings]The effect of verti-cal static load on the mechanical response of HDC arc on the plug-in bridge expansion device and the concrete in the anchorage area is greater than that of bidirectional static load on the mechanical response of HDC arc on the plug-in bridge expansion device and the concrete in the anchorage area,and the HDC arc does not damage the plug-in bridge expansion device and the concrete in the anchorage area under the two types of vehicle loads.[Conclusions]The normal operation of HDC arc bridge expansion joint is not affected by not welding HDC arc bridge expansion device or reducing welding.
关键词
桥梁工程/伸缩缝/数值分析/力学响应Key words
bridge engineering/expansion joint/numerical analysis/mechanical response引用本文复制引用
出版年
2024
NETL
NSTL
万方数据