ABSTRACT

Out-of-plane response of typical South European masonry infilled frames was investigated by testing three reduced scale specimens to investigate the effect of workmanship and presence of opening on the out-of-plane behaviour. These three reduced scale specimens are: SIF-A, SIF-B and PIF-B. Quasi-static cyclic testing was performed just in one direction to be able to monitor the propagation of the cracks and performance of the interfaces during out-of-plane loading. Out-of-plane collapse of masonry infills within concrete frames has been observed in most of the earthquakes. Aforementioned earthquakes such as L'Aquila earthquake, highlights the damages developed in the infill walls in relation to the minor cracks observed in the structure. The effect of different boundary conditions on the out-of-plane behavior of the infilled frames was investigated by different researchers. Presence of even small percentage of opening inside infill results in significant decrease in the deformation capacity of the specimens.