Comparative Study of Masonry Infilled RC Frame With and Without Opening by using Static and Dynamic Analysis

Masonry infill frames are the most common structural systems in earthquake regions. They play a significant role in resisting seismic forces when earthquake happens. The stiffness and strength contributions of infill frames are generally neglected during practice. They are considered as non-structural components and usually added after the frame has constructed. In the present study, two buildings of G+3 and G+12 are considered for seismic zone v consisting hard soil for the analysis. Totally 7 models are made for the analysis using software ETABS version 2013. The response parameters of 7 Models such as Base Shear, Mode Period, Storey Displacement, Storey Accelerations and Storey Shear are studied and comparisons are made for both Equivalent static lateral force method and Time history analysis. As the height and mass participation of the structure increases, Base Shear and Mode Period also increase. If percentage of opening increases, the stiffness reduces. Simultaneously but the Mode period and Displacement increases and frequency reduces due to which acceleration decreases for both G+3 and G+12 Buildings. Compared to ESLM and TH analyses, the Time history analysis shows better performance than Equivalent static lateral force method and G+3 building shows lesser displacement compared to G+12 Building.