Research on Vehicle-bridge Interaction Using Tire Patch Contact Loads

被引：0
|
作者：
Zhang, Long-Wei [1 ]
Yin, Shi-Ding [1 ]
Cao, Jun-Hui [2 ]
Yuan, Shuai-Hua [1 ]
Shao, Xu-Dong [2 ]
机构：
[1] College of Civil Engineering, Hunan University of Science and Technology, Hunan, Xiangtan
[2] College of Civil Engineering, Hunan University, Hunan, Changsha
来源：
Zhongguo Gonglu Xuebao/China Journal of Highway and Transport | 2024年 / 37卷 / 11期
关键词：
bridge engineering; field test; numerical simulation; road surface roughness; steel deck; tire patch load model; vehicle-bridge interaction;
D O I：
10.19721/j.cnki.1001-7372.2024.11.012
中图分类号：
学科分类号：
摘要：
Highway vehicle-bridge interaction (VBI) models generally simulate tire loads using a single-point force, which ignores the spatial load effect of tires on the vehicle-bridge interaction. This may lead to errors in the bridge response calculated by the drive-by vehicles. To solve this problem, a VBI modeling method is proposed herein that considers the influence of the tire contact surface. First, according to the actual contact area of vehicle tires, a multipoint force tire model comprising uniformly distributed spring-damping elements was established to replace the traditional single-point force tire model. Tire patch loads were used to connect the vehicle and bridge models to construct the vehicle-bridge interaction formula. Subsequently, based on the new modeling method, VBI simulation models of the simply supported beam and slab bridge were established using LS-DYNA. The proposed method was then verified via comparison with the existing research. Finally, based on field tests and simulations of a steel deck bridge, the accuracy and feasibility of the multipoint tire load contact model were demonstrated. The results show that the spatial load effect of the tires can weaken the dynamic response to some extent for simply supported beams and slabs. This phenomenon becomes increasingly evident with a decrease in bridge stiffness and the deterioration of road profile conditions. The maximum dynamic response of the multipoint force model for a slab bridge with Class E roughness is 4.94% lower than that of the single-point force model. For steel deck bridges with a smaller local stiffness, the results of the single-point model without considering the tire contact significantly overestimate the dynamic response of the bridge. Furthermore, the error of the maximum dynamic response of the measuring points at the bridge deck reaches 8.83%. In contrast, the results considering the effect of the tire contact surface are closer to the measured values. The errors at different fatigue details are less than 2%, and the error at the U-rib is only 0.33%. Therefore, considering the tire contact surface, the vehicle-bridge interaction system can accurately reflect the dynamic performance of bridges, particularly steel deck bridges. © 2024 Chang'an University. All rights reserved.
引用
收藏
页码：152 / 163
页数：11
相关论文
共 27 条
  • [1] DENG Lu, HE Wei, YU Yang, Et al., Research progress in theory and applications of highway vehicle-bridge coupling vibration [J], China Journal of Highway and Transport, 31, 7, pp. 38-54, (2018)
  • [2] DENG L, CAI C S., Development of dynamic impact factor for performance evaluation of existing multi-girder concrete bridges, Engineering Structures, 32, 1, pp. 21-31, (2010)
  • [3] LIU Huan-ju, HAN Wan-shui, LIU Ning, Et al., Dynamic evolution of stochastic vehicle flow on bridge under braking conditions and analysis of vehicle-bridge coupled vibration [J], China Journal of Highway and Transport, 33, 4, pp. 76-88, (2020)
  • [4] MA L, WU L, CAI C S, Et al., The theoretical impact factor spectrum for highway beam bridges [J], Journal of Bridge Engineering, 26, 12, (2021)
  • [5] DENG Lu, DUAN Lin-li, HE Wei, Et al., Study on vehicle model for vehicle-bridge coupling vibration of highway bridges in China [J], China Journal of Highway and Transport, 31, 7, pp. 92-100, (2018)
  • [6] YANG Y B, WU Y S., A versatile element for analyzing vehicle-bridge interaction response, Engineering Structures, 23, pp. 452-469, (2001)
  • [7] ZHOU Shuang, ZHANG Nan, XIA He, Et al., Effects of quasi-static deformation of a simply supported high speed railway box girder bridge on dynamic responses of vehicle-bridge coupled system [J], Journal of Vibration and Shock, 38, 5, pp. 209-215, (2019)
  • [8] LI Yong-le, QIAN Yi-zhe, ZHU Jin, Et al., Longitudinal vibration characteristics of a long-span highway suspension bridge under stochastic wind and traffic loads [J], China Journal of Highway and Transport, 34, 4, pp. 93-104, (2021)
  • [9] HARRIS N K, OBRIEN E J, GONZALEZ A., Reduction of bridge dynamic amplification through adjustment of vehicle suspension damping, Journal of Sound and Vibration, 302, 3, pp. 471-485, (2007)
  • [10] CHANG K C, WU F B, YANG Y B., Disk model for wheels moving over highway bridges with rough surfaces, Journal of Sound and Vibration, 330, 20, pp. 4930-4944, (2011)
123