Fatigue Strength of Corroded Rolled Beams

by Guoping Xu, Whitman, Requardt & Associates, United States,
Pedro Albrecht, Whitman, Requardt & Associates, United States,



Document Type: Proceeding Paper

Part of: Structural Materials

Abstract:

Highway and railway bridges fabricated from ASTM A7, A36, and A572 steels will corrode if the paint system is allowed to fail for lack of maintenance. Corroding members lose cross section and pit. The loss in cross sectional area in the plane of the crack increases the nominal stress range. The pits act at stress raisers that may lead to rapid crack initiation.

Subject Headings: Corrosion | Railroad bridges | Highway bridges | Steel bridges | Girder bridges | Rail transportation | Fatigue (material)

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