Effects of Rectification of Column Orientation of a Building on Drift Ratio and Displacement

Abstract

Columns are integral parts of buildings. They may affect several parameters of multistoreyed buildings. For whatever reason, a column is cast with a flaw the stability of the structure becomes susceptible which has to be solved by any means without dismantling the whole structure. In structural design, drift ratio is a crucial factor since too much drift ratio can result in instability of the structure, discomfort for the occupants and potential damage to non-structural components. To maintain the security and operation of structures, structural codes and standards outline permitted drift limitations. Excessive displacements may harm the building's structural components, reduce its use, or change the way it looks. The drift ratio and displacement patterns across the structure may be calculated and comprehensive information provided using advanced structural analysis tools, such as ETABS. To
assist the engineer in how the structures behave, ETABS provides visualization tools. To show the findings of the study, it offers 3D
representations of the models in addition to diagrams, graphs, and animations. Identifying potential design concerns and improving the structural system are both made possible by doing this. In this study, it is found that, column size can influence drift ratio and displacement but, it does not ensure an obvious increase or decrease of drift ratio or displacement for smaller or larger column sizes on a G+10 residential building. This study also shows that the effects can be the least noticeable if the column size of lower floor levels are modified and they are rectified to their original size on the other floors for both symmetrical and unsymmetrical model.