Seismic impact of re-entrant corners with varying angle on G + 15 story Y shaped irregular building

This study is focused on the behavior of re-entrant corners with different angles on Y-shaped high-rise building with G + 15 floors under seismic loading using dynamic analysis (response spectrum analysis). Unfortunately, India is the most populous country today. The main reason for adopting this building Y-shaped can provide several advantages over traditional rectangular or square buildings, increased natural light and ventilation, and dynamic and interesting designs. The objective of the current analytical study is to determine the certain parameters affect the behavior of a structure with re-entrant corners with different angles in a Y-shape. The aspect of different performances of a building with different angle limb Y-shape under seismic forces is described in this work, specifically for different angle Y-shaped building structures. In this paper, a fifteen-story building in RC -a frame structure for the IV zone is studied. The eight models of the fifteen-story RC -frame building was created with different angles 30°, 45°, 60°, 75°, 90°, 120°, 135°, and 150°. The bare frame model, the infill and eight versions of the infilled frame were studied, each with different angles (one angle at a time from bottom to top). The ETABs computer application is utilized for the comprehensive modeling of the complete building. The analytical results are analyzed in relation to base shear, lateral displacement, lateral forces, maximum bending moment, storey disbarment, and storey drift. The best fitting curve is plotted using important data.