Table of Contents
Journal of Computational Engineering
Volume 2017 (2017), Article ID 4584657, 13 pages
https://doi.org/10.1155/2017/4584657
Research Article

An Investigation on the Dynamic Response of Cable Stayed Bridge with Consideration of Three-Axle Vehicle Braking Effects

1Department of Road and Bridge Construction, Danang University of Science and Technology, Danang, Vietnam
2International School, Duy Tan University, Danang, Vietnam
3Institute of Research and Development, Faculty of Civil Engineering, Duy Tan University, Danang, Vietnam

Correspondence should be addressed to Nhat-Duc Hoang

Received 21 April 2017; Accepted 14 May 2017; Published 11 June 2017

Academic Editor: Jia-Jang Wu

Copyright © 2017 Xuan-Toan Nguyen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The cable-stayed bridge (CSB) is often used to span over the large rivers on the highway with a high-level navigational clearance; however, CSB is very sensitive to live load. Most of the previous studies on vibration analysis of CSB that focus on complex traffic loading and vehicle dynamic interaction as well as on the bridge deck do not consider braking effects thoroughly. In this paper, the finite element method (FEM) is used to investigate the dynamic response of CSB due to a three-axle vehicle considering braking effects. Vertical reaction forces of axles that change with time make bending vibration of the bridge deck increase significantly. The braking in a span is able to create response in other spans, towers, and cables. In addition, the impact factors are investigated on both FEM and experiment with a case study of Pho Nam bridge (Danang city, Central Vietnam). The results of this study provide an improved understanding of the CSB dynamic behaviors, and they can be used as useful references for bridge codes by practicing engineers.