Impact of wind loads on columns or the building's geometric center in high-rise and low-rise buildings

Abstract

Wind loading significantly impacts a building's structural integrity and induces substantial displacements, particularly at higher levels. Investigating these effects presents a challenging area of research. This study delves into the impact of wind loads on columns within the frame versus loads applied to the building's geometric center. It explores how these variations influence bending moment, shear force, and axial force at the column base in the structural frame. Additionally, it examines horizontal displacements across different floors in two buildings: one with seven floors and another with twenty-five. In the context of designing high or low-rise structures, allocating wind loads to the building's geometric center ensures a more secure structure compared to applying these loads solely to the columns of the frame. These conclusions derive from extensive research conducted. In the seven-story building, Case 2 exhibits a 406% increase compared to Case 1 in Q2-2. Moreover, Q3-3 shows a 107% rise, M2-2 a 203% increase, and M3-3 a 389% elevation. Notably, the largest displacement, measuring 561%, occurs at the 6th floor. In the twenty-five-story building, Case 4 surpasses Case 3 and Q3-3 by 366% and demonstrates a striking 1585% increase compared to M2-2.