Fatigue and Corrosion as a Threat for Steel Heritage Bridges

Author:

Macho Martin1,Ryjáček Pavel1,Campos e Matos José2

Affiliation:

1. Faculty of Civil Engineering, Czech Technical University in Prague, Prague, Czech Republic

2. Department of Civil Engineering, University of Minho, Guimarães, Portugal

Abstract

<p>The combined effects of corrosion and fatigue have become a topic issue in recent times. Decades- old steel bridges that are still in service need to be reassessed. However, there is no relevant background information that can be used in assessment of this phenomenon. For this reason the aim of the research presented in this paper was preparation and execution of laboratory tests on real bridge components that were deteriorated by corrosion. Experimental tests were performed to find out how corrosion weakening affects the fatigue strength of members. The evaluation of the tests indicates that the service life of members may be significantly reduced due to fatigue. The paper ends with recommendations on how the loss of material due to corrosion could be taken into account for an assessment the residual lifetime of members.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

Reference11 articles.

1. Ryjáček, P., Macho, M., Stančík, V., and Polák, M. Deterioration and assessment of steel bridges. 8th International Conference on Bridge Maintenance, Safety and Management IABMAS 2016. 2016; 1188-95.

2. Macho, M., and Ryjáček, P. The impact of the severe corrosion on the structural behavior of steel bridge members. Advances and Trends in Engineering Sciences and Technologies: Proceedings of the International Conference on Engineering Sciences and Technologies, ESaT (2015). 2015; 123-128.

3. Xu, S., and Qiu, B. Experimental study on fatigue behavior of corroded steel. Materials Science and Engineering: A. 2013; 584 (Supplement C): 163–169.

4. Xu, S., and Wang, Y. Estimating the effects of corrosion pits on the fatigue life of steel plate based on the 3D profile. International Journal of Fatigue. 2015; 72 (Supplement C): 27–41.

5. Zhang, X.-Y., Li S.-X., Liang R., and Akid, R. Effect of corrosion pits on fatigue life andcrack initiation. 13th International Conference on Fracture. Beijing, China. 2013

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