EFFECT OF PODIUM CONNECTED WITH BASEMENT WALLS IN TALL BUILDINGS

Abstract

Sky-scrappers having basements or connected podiums surrounding by RCC walls are always beneficial in terms of the behavior of the structure under serviceability checks under earthquake or wind forces. It is shown in this dissertation by the help of number of models with podium and without podium for a type of structure. Podium may apply a restraint force called as strutting force on the slab connected with RCC walls which will result in reversing the effect of moments produced due to overturning of the building due to earthquake or wind forces. It is concluded in the report that the lateral deflection, drift and overturning moments are lesser in podium connected structures as compared to the structures without podium. Effect of outriggers addition to podium is also considered in the dissertation to find out the best possible configuration of building so that function-ability and economy may be achieved. Software using for analysis is ETabs 2020 and validation of models has been done using general checklist format given in IS 16700:2017. All analysis of the structures opted for dissertation has been completed using BIS codes.