Experimental and numerical study on seismic response of RC frames strengthened by shotcrete sandwich panel infills and CFRP strips

The present study evaluates the utilization of shotcrete sandwich panel (SSP) infill and CFRP strips to strengthen reinforced concrete (RC) frames. To this end, a diagonal strip-infilled RC frame, an SSP-infilled control specimen (a bare frame) were examined as single-story specimens in terms in-plane seismic response. This work compared stiffness degradation, damping, cyclic lateral Also, available empirical techniques subjected performance comparison capacity calculation masonry infills for SSP system. structural levels system calculated ASCE 41 code. Eventually, numerical analyses carried out order examine nonlinear behavior. It was found that SSP-infill led two-fold rise frame strength, even though increased. Moreover, ductility infilled experienced 42% improvement light strips.