International Journal of Science, Engineering and TechnologyAuthors: Shreyanshu verma
Abstract: This study investigates the effect of different types of infill walls on the static and dynamic behavior of reinforced concrete (RC) framed structures with and without retrofitting. Masonry infill walls significantly influence the stiffness, strength, and seismic performance of RC frames, although they are often neglected during structural analysis. In this work, bare frames and infilled frames using conventional brick masonry and AAC blocks are analyzed under seismic loading using equivalent static and time history methods according to IS 1893:2016 provisions. Numerical modeling and finite element analysis are carried out using ABAQUS software. The study also evaluates the effect of soft stories at different floor levels and the efficiency of CFRP retrofitting techniques. Results indicate that infilled frames show considerable reduction in displacement and improved stiffness compared to bare frames. AAC infill walls provide better seismic performance than conventional masonry. Retrofitting using CFRP further enhances structural resistance and reduces seismic displacement significantly.
DOI: http://doi.org/10.5281/zenodo.20267094
