Advanced Steel Construction

Vol. 12, No. 4, pp.359-379(2016)


SAFETY ANALYSIS OF STEEL BOX GIRDER BRIDGES

WITH PITTING CORROSION

 

Yasser Sharifi 1* and Jeom Kee Paik 2

1Department of Civil Engineering, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran

2LRET Research Centre of Excellence, Pusan National University, Busan, Korea

*(Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. or This email address is being protected from spambots. You need JavaScript enabled to view it.)

Received: 18 February 2015; Revised: 10 December 2015; Accepted: 5 January 2016

 

DOI:10.18057/IJASC.2016.12.4.1

 

ABSTRACT:

Steel bridges corrode due to environmental exposure. The consequence is a reduction in both the load-carrying capacity and safety of a bridge. Therefore, it is needed to evaluate procedures for an exact prediction of the load-carrying capacity and reliability of bridges, in order to make reasonable decisions about repair, rehabilitation and renewal. The aim of this study is to develop and demonstrate a procedure for the assessment of steel box girder bridge ultimate strength reliability that takes the degradation of plate members due to pit corrosion into account. The present paper treats the effect of pitting corrosion on the load-carrying capacity and reliability of steel box girder bridges and the results are compared with the uniform corrosion effect. The procedure and results of this study can be used for the better prediction of the service life of deteriorating steel box girder bridges and the development of optimal reliability-based maintenance strategies.

 

Keywords:

Bridges, pitting corrosion, reliability analysis, probabilistic model, steel box girders

 

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