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Dynamic response and parameter analysis on the vehicle–bridge coupling of cable-stayed bridge under over-limit transportation

Yao Lu (Central South University, Changsha, China)
Dejian Li (Central South University, Changsha, China)
Kai Wang (Central South University, Changsha, China)
Zhen Li (Central South University, Changsha, China)

International Journal of Structural Integrity

ISSN: 1757-9864

Article publication date: 28 September 2021

Issue publication date: 28 October 2021

150

Abstract

Purpose

Over-limit transportation has the characteristics of large axle load, large number of axles and lateral distribution width. Under the action of over-limit load, the coupling vibration effect of vehicle–bridge is more obvious, and the deformation of bridge components is large. Thus, research and analysis of the vehicle–bridge coupling dynamic response of long-span bridges under over-limit transportation has practical engineering significance.

Design/methodology/approach

Based on the principle of invariable elastic potential energy, this paper derives dynamic model of over-limit transportation n-axis flat vehicle. The numerical simulation method is used to model and calculate a cable-stayed bridge, and the static effect of the cable-stayed bridge and the dynamic response of vehicle–bridge coupling under different parameters are compared and analyzed.

Findings

The focus is on the influence of vehicle load and vehicle velocity parameters on the stress and amplitude of different cables under over-limit transportation, and the corresponding variation law is obtained.

Originality/value

The research on the coupled dynamic response of cable-stayed bridges has attracted the attention of many scholars, but there are relatively few studies on the coupled vibration of out-limit vehicles and bridges. In this paper, based on finite element software, a vehicle–bridge coupling model under bulk transportation is established.

Keywords

Citation

Lu, Y., Li, D., Wang, K. and Li, Z. (2021), "Dynamic response and parameter analysis on the vehicle–bridge coupling of cable-stayed bridge under over-limit transportation", International Journal of Structural Integrity, Vol. 12 No. 5, pp. 688-714. https://doi.org/10.1108/IJSI-03-2021-0038

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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