Factors Governing the Choice Between Repairing, Strengthening, and Reconstructing Railway Girder Bridges.

Discussion: Historical load effects on fatigue of metallic railway bridges

“…Historically, cracking has occurred at trough ends where connected to main girders (e.g. see Berridge, 1963), but trough floors have been found to be otherwise efficient and not prone to fatigue. The discusser asks whether the authors could explain the choice of arrangement.…”