Dynamic Response Analysis of Steel-Concrete Beam Deck Pavement under Moving Load

被引：0

作者：

Zhao G. ^{[1
]}

Hu J. ^{[2
]}

Wang Q. ^{[3
]}

Yan Y. ^{[4
]}

Gong B. ^{[5
]}

机构：

[1] Department of Computer Technology, Hebei College of Institution and Technology, Shijiazhuang

[2] Department of Civil & Environmental Engineering, Michigan State University, East lansing, 48825, MI

[3] Department of Planning and Development, Shijiazhuang Expressway Group Co., Ltd, Shijiazhuang

[4] Faculty of Science, The University of Hong Kong

[5] School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang

来源：

Journal of Engineering Science and Technology Review | 2022年 / 15卷 / 06期

关键词：

Bridge deck pavement; Dynamic response; Moving load; Steel-concrete continuous beam;

D O I：

10.25103/jestr.156.16

中图分类号：

学科分类号：

摘要：

The dynamic stability and long-term safe operation of long span continuous beam bridge have potential safety hazards under the vehicle dynamic load. In order to explore the vibration characteristics of steel-concrete composite continuous bridge and study the dynamic response of pavement system of three-span steel-concrete composite continuous girder bridge under moving load.Based on the viscoelastic constitutive relation of asphalt mixture in bridge deck pavement, a three-dimensional numerical analysis model of three-span steel-concrete composite continuous beams was established by using ABAQUS finite element software. By writing the DLOAD and UTRACLOAD load subroutine to implement the vehicle moving load, the central difference method was applied to solve the deflection and stress of the three-span steelhybrid continuous beam bridge at different vehicle speeds, and the stress state of each pavement layer of the bridge deck was compared and analyzed. The results show that the vertical deflection of the third span is the largest, the first span is the second, and the second span is the smallest under vehicle vibration load. The difference of vertical deflection of bridge deck is very small and can be ignored. With the increase of vehicle speed, the vertical deflection of pavement layer decreases. In addition, in terms of structural stress, the influence of vehicle vibration load on steel-concrete composite continuous beam bridge gradually decreases from top to bottom, and the mechanical characteristics of different structural parts are different. The conclusions obtained in this study can provide a theoretical basis for the design and construction of multi-span steel-composite continuous beam bridge. © 2022 School of Science, IHU. All Rights Reserved.

引用

页码：132 / 141

页数：9

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