Ultimate strength reliability analysis of corroded steel-box girder bridges

Sharifi, Yasser; Paik, Jeom Kee

doi:10.1016/j.tws.2010.09.001

Cited by 88 publications

(36 citation statements)

References 15 publications

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“…The operational parameters include maintenance, repair, percentage of time in ballast, frequency of tank cleaning, temperature pro les, use of heating coils, humidity conditions, water and sludge accumulation, microbial contamination, and inert gas composition. To date, basic work to understand the e ects of these many factors and their interactions is lacking for marine structures, although mathematical models for predicting the time-dependent corrosion wastage of ship structures have been developed [6][7][8][9][10].…”

Section: Idealisation Of Corrosion Damagementioning

confidence: 99%

“…Marine environment is a sea water environment, and this means that corrosion in marine structures, which are generally fabricated by various grades of steel, is often very severe, not only under sustained immersed condition as in ballast tanks, but also from general exposure to atmospheric conditions [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…The evaluation of the residual strength of members with pitting corrosion is considered to be more di cult than the same evaluation of members with uniform corrosion [1][2][3][4][5][6][7][8][9][10][11][12][13]. Over the past few decades, there have been signi cant developments in computer hardware and Finite Element Analysis (FEA) software.…”

Section: Introductionmentioning

confidence: 99%

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Ultimate compressive strength of deteriorated steel web plate with pitting and uniform corrosion wastage

2016

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Abstract. Steel structural members are likely to be exposed to corrosive environments and thus, corrosion is one of the dominant life-limiting factors of steel structures. Extensive studies on the e ects of pitting and uniform corrosion on the strength performance of steel structural members under a wide variety of loading conditions have been undertaken to assess the relationship between pitting corrosion intensity and residual strength. The aim of this study is to investigate the ultimate compressive strength characteristics of steel web plate elements with pit and uniform corrosion wastage. A series of ABAQUS nonlinear elastic-plastic large deformation nite element analyses are carried out on Ishaped section steel girder models with varying pitting corrosion intensities. Arti cial pitting of di erent intensities is considered on the web plates and a uniform loading is applied vertically on the upper ange section. The ultimate load-carrying capacity of the deteriorated models with di erent levels of uniform thickness loss is also studied. The results are applied to the assessment of the ultimate compressive strength of web plates with di erent pitting corrosion intensities and a uniform loss thickness by developing design formulae that represent the average loss thickness versus the ultimate load-carrying capacity.

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Section: Idealisation Of Corrosion Damagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ultimate compressive strength of deteriorated steel web plate with pitting and uniform corrosion wastage

2016

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“…The efficient maintenance, repair and rehabilitation of existing bridges require the development of a methodology that allows for the accurate evaluation of load-carrying capacity and the prediction of remaining life. Corrosion is one of the most important causes of deterioration in steel bridges (Cheung and Li [1]; Czarnecki and Nowak [2]; Melchers [3]; Melchers and Jeffrey [4]; Sharifi [5]; Sharifi and Paik [6][7][8]; Sharifi and Tohidi [9,10]; Tohidi and Sharifi [11][12][13][14]). …”

Section: Introductionmentioning

confidence: 99%

Safety Analysis of Steel Box Girder Bridges With Pitting Corrosion

Sharifi¹,

Paik²

2016

Volume 12 Number 4

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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.

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“…The effects of both uniform and pitting corrosion on load-carrying capacity and reliability of corrosion damaged steel box-girder bridges has been investigated by Sharifi and Paik [10,11] and Sharifi [12], respectively.…”

Section: Introductionmentioning

confidence: 99%

Uniform Corrosion Wastage Effects on the Load-Carrying Capacity of Damaged Steel Beams

Sharifi¹

2012

Volume 8 Number 2

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ABSTRACT:The aim of the present study is to investigate the effects of uniform corrosion on the load-carrying capacity of steel beam sections. In this paper, a credible corrosion model for damaged steel beams has been developed based on the real existing data. Thickness loss data were compiled from corrosion damaged samples beams which picked up from a petrochemical industry. The developed deteriorated model was employed to demonstrate the effects of uniform corrosion on the structural behavior of damaged steel beams due to uniform corrosion wastage. It was found from the obtained results that the lateral distorsional buckling is the critical failure mode at the preliminary age of corrosion wastage.

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Ultimate strength reliability analysis of corroded steel-box girder bridges

Cited by 88 publications

References 15 publications

Ultimate compressive strength of deteriorated steel web plate with pitting and uniform corrosion wastage

Ultimate compressive strength of deteriorated steel web plate with pitting and uniform corrosion wastage

Safety Analysis of Steel Box Girder Bridges With Pitting Corrosion

Uniform Corrosion Wastage Effects on the Load-Carrying Capacity of Damaged Steel Beams

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