Ermüdungsfestigkeit von Lamellenstößen bei Vollwandträgern mit dicken Gurten - Experimentelle und numerische Untersuchungen

Fatigue resistance of lamella joints of plated steel girders with thick flanges - experimental and numerical investigations.

Experimental and numerical investigations on the fatigue resistance of lamella joints of plated steel girders with thick flanges This article presents the research results of the experimental and numerical investigations on the fatigue resistance of lamella joints of plated steel girders with thick flanges. The focus lies on the influence of the size plate thicknesses on the fatigue resistance welded butt joint assembled on site. The investigations show that the location of the notch, weld toe or end grove weld, has a strong impact on the fatigue resistance and also that certain irregularities e.g. at the end grove weld do not necessarily lead to a reduction of the detail category. On the basis of the experiments and numerical studies the possible classification into a detail category for the fatigue design is derived for the welded lamella joints.