ABSTRACT
Reinforced concrete (RC) frames with unreinforced masonry infill represents a widely used construction typology across the globe, including regions characterized by moderate to high seismicity. These structures have been often designed before the introduction of modern seismic design codes, are characterized by low ductility and high seismic vulnerability and are in need for seismic retrofitting to meet the current safety standards. However, it is important to highlight that, although considered as non-structural elements, masonry infills can significantly affect the seismic response of the structure. However, their role on the seismic performance of retrofitted RC structures has been generally neglected in literature. Among the different retrofitting strategies, the use of buckling-restrained braces (BRBs) represents an effective solution to improve the seismic performance of existing RC structures. This study investigates the interaction between the BRBs and masonry infill on seismic response of a case study frame.
