Loadbearing capacity of infill masonry walls considering the deformation-based membrane effect / Tragfähigkeit ausfachender Mauerwerkswände unter Berücksichtigung der verformungsbasierten Membranwirkung

According to currently valid codes, it is not possible to determine the loadbearing capacity of unreinforced infill walls considering the deformation-based membrane effect by incorporating the exact support conditions. One reason for this is the lack of a validated calculation procedure, which in addition to the equilibrium conditions also realistically represents the compatibility conditions of these systems. In the present paper, therefore, a new non-linear analytical calculation procedure is presented. The main focus of the analysis of walls subject to area loading is the incorporation of the support conditions and thus the consideration of the deformation-based membrane compressive force. Through generalised formulation and a standardised notation of the determination equations, different material behaviours and various support conditions can be taken into account with few parameters. On the action side, both lighter loading like wind loads and heavier loading like explosion loads can be considered. Through the implementation of the partial factor concept, it is possible to comply with the requirements of European codes and thus ensure the applicability of the analysis model.