REVIEW ARTICLE


Estimation of Fatigue Life of Long-Span Bridge by Considering Vehicle- Bridge Coupled Vibration



Ling Jiao*
School of Civil Engineering, Xuchang University, Xuchang Henan 461000, China

Article Information


Identifiers and Pagination:

Year: 2015
Volume: 9
First Page: 944
Last Page: 949
Publisher Id: TOMEJ-9-944
DOI: 10.2174/1874155X01509010944

Article History:

Received Date: 17/02/2014
Revision Received Date: 21/03/2015
Acceptance Date: 09/06/2015
Electronic publication date: 7/10/2015
Collection year: 2015

© 2015 Jiao

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the School of Civil Engineering, Xuchang University, Xuchang Henan 461000, China; E-mail: Lingjiao1861@163.com


Abstract

To estimate the fatigue life of long-span steel bridge more accurately, this paper proposes a method for estimating the fatigue life of long-span bridges by considering vehicle-bridge coupled vibration. Firstly, the universal equation of vehicle-bridge vibration is derived based on triaxial standard multi-scale model of fatigue vehicle and bridge, and relevant program for vehicle-bridge coupled vibration is programmed. Secondly, a method for estimating the fatigue life of long-span steel bridge is proposed based on fracture mechanics theories, and the analysis process is expounded in details. Finally, the method for estimating fatigue life proposed in this paper is verified by taking a double pylon cablestayed bridge with orthotropic steel bridge deck slab as an example.

Keywords: Fatigue life, orthotropic steel bridge deck slab, steel bridges, vehicle-bridge coupled vibration.