Comparative Analysis of Concentric Steel Braced Frame Structures Impact of Aspect Ratio Using Pushover Analysis

Abstract

This research explores how different ratios affect a structure's ability to withstand earthquakes. One such ratio is the H/B ratio, where H is the building frame's overall height and B is its base width. steel frame. Here, the height of the building remains the same, the width of the foundation varies. In this study, seven different aspect ratios ranging from 1.0 to 3.75 have been considered for a ten-story steel frame building with fence protection, i.e., X fence with no protection system. Two types of slabs are considered for this study, one with the same steel sections for the high strength required for the beam and column and the other with different steel sections according to the strength and performance requirements. carrying out assigned duties. For this analytical study, ETABS has been used and a comparison has been made between the performance of the empty slabs and different conditions using push curves. Roof displacement, foundation shear and yield strength are parameters used to define the seismic performance of floors. It has been determined that providing reinforcement to the frame has increased load capacity, transmission capacity and reduced roof movement for all types of conditions.