Effect of Mega Column in Outrigger System of High-Rise Building

Abstract

Analysis of the high rise structure is carried out to study the behavior of outrigger in high rise building
with/without mega column and its efficiency for its optimum position for different condition. The three dimensional
models of outrigger with/without mega column subjected to earthquake load and define best system from that and
outrigger with mega column are subjected earthquake load, analyzed and compared to find the lateral displacement
reduction related to the outrigger and mega column and the earthquake load obtained using IS 1893 (Part-1): 2002.
The location of outrigger reducing lateral displacement and building drift. To evaluate the performance of high rise
building with outrigger system respect to same column and mega column in high rise building, Response spectrum
analysis has been conducted by using SAP 2000. To achieve this objective, the high rise building with 50 storey and
with shear wall and with/without outrigger different location and with/without mega column were analyzed.
Comparative study of the displacement, drift and base shear of the structure is studied.