Fatigue behaviour of toe crack at the lower end of crossbeam-to-stiffener weld with cut-outs in OBDs
article
Steel Orthotropic Bridge Decks (OBDs) are widely used in the superstructures of movable and long-span bridges. There is a high concentration of stress at many welded connections, which are governing the fatigue performance of OBDs. The fatigue behaviour of the lower end of weld in crossbeam-to-stiffener connection with cut-outs is studied from multiple experimental results obtained from a 48 m2 full-scale specimen, as well as finite element simulations. The fatigue resistance of the detail is recommended based on 8 experiments reported in the current study and experiments in the literature using the hot spot stress method. The influence of the load position on the hot spot stress is analysed. The effective notch stress method is used to evaluate the fatigue resistance with different weld profiles.
Topics
TNO Identifier
1002594
Source
Journal of Constructional Steel Research, 222, pp. 1-13.
Pages
1-13