Matos, J.: Static and fatigue test on real steel bridge components deteriorated by corrosion. Drdácky, M.: Buckling of plate strip subjected to localised corrosion-a stochastic model. Shi, W.: Corrosion induced degradation of fatigue strength of steel in service for 128 years. Nowak, A.S.: Capacity loss due to corrosion in steel-girder bridges. Moran, P.: Corrosion and Corrosion Control. Xiong, W.: Corrosion fatigue analysis of stay cables under combined loads of random traffic and wind.
Siriwardane, S.C.: Remaining fatigue life estimation of corroded bridge members. Yingkai-Liu, L.D.W.Z.: A new fatigue reliability analysis method for steel bridges based on peridynamic theory. Vogel, R.M.: Steel bridge service life prediction using bootstrap method.
Righiniotis, T.D.: Fatigue reliability of welded steel structures. Breen, F.L.: Fatigue-reliability evaluation of steel bridges.
#CONSIDER BEARING IN MIDAS CIVIL CRACK#
Ellingwood, B.R.: Stochastic fatigue crack growth in steel structures subject to random loading. Brožovský, J.: Fatigue damage analysis of a riveted steel overhead crane support truss. Ko, J.M.: Monitoring-based fatigue reliability assessment of steel bridges: analytical model and application. Mahmoodian, M.: Prediction of fatigue failure of steel beams subjected to simultaneous corrosion and cyclic loading. Finally, a fatigue damage prediction model considering corrosion factors is established, and the law of fatigue damage and stiffness degradation of the structure under a corrosive environment is determined. The intermediate stage is a gentle development stage from the fatigue test results, accounting for approximately 80% of the total life cycles. With the increase in fatigue cycles, stiffness degradation presents a three-stage trend. When the corrosion effects are jointly considered, the fatigue durability of the bridge is insufficient.
The results indicate that the bridge’s fatigue resistance can meet the design requirements when the corrosion environment is not considered. Moreover, an equivalent fatigue test is designed in combination with the corrosion prediction model. A linear corrosion prediction model is proposed based on Miner’s linear cumulative damage concept to solve the difficulty of implementing accelerated corrosion tests. The corrosion environment of a steel truss bridge significantly shortens its service life, particularly the chemical pollution in the air.
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