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Prediction of residual strength of corroded tensile steel plates
Abstract Recently, the damage due to deterioration of materials in many old steel bridge structures, which causes unavoidable strength reduction, is becoming a serious problem in Japan and all over the world. Therefore the remaining load-carrying capacities must be carefully evaluated in order to understand the feasibility of those steel structures for the current usage and to evaluate the necessity of retrofitting of selected corroded members to strengthen the existing structure. This paper proposes a new method to calculate the remaining yield and tensile strengths by using a concept of representative effective thickness (teff) with the correlation of initial thickness (t0) and the maximum corroded depth (tc,max), based on the results of many tensile coupon tests of actual corroded plates. Further, the feasibility of establishing of an analytical methodology to predict the residual strength capacities of a corroded steel member with fewer number of measuring points is also discussed.
Prediction of residual strength of corroded tensile steel plates
Abstract Recently, the damage due to deterioration of materials in many old steel bridge structures, which causes unavoidable strength reduction, is becoming a serious problem in Japan and all over the world. Therefore the remaining load-carrying capacities must be carefully evaluated in order to understand the feasibility of those steel structures for the current usage and to evaluate the necessity of retrofitting of selected corroded members to strengthen the existing structure. This paper proposes a new method to calculate the remaining yield and tensile strengths by using a concept of representative effective thickness (teff) with the correlation of initial thickness (t0) and the maximum corroded depth (tc,max), based on the results of many tensile coupon tests of actual corroded plates. Further, the feasibility of establishing of an analytical methodology to predict the residual strength capacities of a corroded steel member with fewer number of measuring points is also discussed.
Prediction of residual strength of corroded tensile steel plates
Appuhamy, J. M. R. S. (author) / Kaita, T. (author) / Ohga, M. (author) / Fujii, K. (author)
International Journal of Steel Structures ; 11 ; 65-79
2011-03-01
15 pages
Article (Journal)
Electronic Resource
English
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