Influence of Red Bricks Infill Walls on Seismic Response of a Regular RC Framed Building by (SBC-CR-18) Code

This paper aims to investigate the impact of red brick infill walls on seismic response of a RC framed building using the Saudi Building Code 301-2018 (SBC301-18). The Equivalent Lateral Force Procedure was utilized to conduct a seismic analysis of a ten-story office reinforced concrete building in Jizan city, both with and without infill walls. The Ordinary Reinforced Concrete Moment Resisting Frame (ORCMRF) building has been studied in accordance with SBC-301-2018's requirements. The frame under analysis used infill walls at ratios of 0% (bare frame), 20%, 40%, 60%, 80%, and 100% (fully infilled frame with walls). Dead load, live load, and seismic loads were the three main factors influencing this frame's analysis. The maximum seismic ground motion of 0.2 seconds Spectral Response Acceleration (Ss in %g) and 1.0 second Spectral Response Acceleration (S1 in %g) in the Kingdom of Saudi Arabia were used to calculate seismic loads. The findings of this investigation showed that the infill walls significantly impact the investigated frame's seismic response. By making the building parts stiffer, these walls have the impact of increasing base shear, seismic lateral forces, storey shear forces, and overturning moments, which in turn reduces the building's lateral displacements.

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