The invention relates to a shell structure (1) behind a wheel house of a front wheel of a motor vehicle, with a cross member (10) which extends on the outside of a longitudinal member (3) in the vehicle transverse direction in front of a front end wall (5). To create a shell structure (1) , by means of which the accident behavior of the vehicle can be improved, in particular in the event of a frontal collision with a small width overlap of the vehicle with an obstacle or an accident partner, according to the invention the cross member (10) has a catch element (24) which is used to catch a rim (15) due to an accident is designed rearwardly displaced in the longitudinal direction of the vehicle and rearwardly turning towards the center of the vehicle.
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