WIND AND SEISMIC ANALYSIS OF BUILDING WITH BRACING SYSTEM RESTING ON SLOPING GROUND

Structural Engineering

Hillside buildings face challenges due to limited flat land, leading to irregular foundations and unsymmetrical structures. The varying stiffness and mass distribution cause the center of mass and center of stiffness of each floor to misalign, resulting in significant torsional response to lateral loads. Unequal column heights in these buildings lead to varying stiffness within the same storey, causing damage to shorter, stiffer columns. To address these issues, bracing systems are used. The study focuses on Step back buildings with different bracing types, analyzed using ETABS v 9.0 finite element code through response spectrum analysis. Dynamic parameters like time periods, top storey displacements, drifts, and base shear are compared among various hill building configurations. The most effective bracing type is identified for Step back buildings on sloping ground, specifically X bracing, providing better results in all dynamic parameters. The chosen bracing is then applied in Step back buildings and compared with Step back setback buildings using wind and seismic analysis. X bracing proves to be the preferred choice. The software analysis is validated against other research papers.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.