Comparative Analysis between Flat Slab and Grid Slab of High Rise Buildings with Varying Geometry under Seismic and Wind Loading Condition

Abstract

The present objective of this work is to compare between behavior of flat slab with waffle or
grid slab using in high rise buildings in different geometry. For this analysis there are taken
18 models of Rectangular, Pentagonal and Octagonal geometry having different floors as 8,
16 and 24. The parametric studies comprise of maximum nodal displacement, maximum
share force, storey drift maximum beam moment and axial forces generated in the beam and
column. The modelling is done in STAAD.pro V8i for seismic zones IV. The Plan size of
rectangle geometry 16X28 m, Octagonal geometry 16 m in diameter, and octagonal geometry
12 m in diameter is considered. The height of floors is taken 3.2 meter. Seismic loadings are
considered separately to evaluate the performance of all the 18 models and conclusions have
drawn on the best framing system. On the basis of the seismic behavior, the performance of
the structure is checked, and then after finally the additional required measures and concepts
for the design of structure for the improvement are suggested. This study gives various
information of seismic parameters like storey drift, maximum beam moment seismic,
behavior, base shear and maximum share force based on current literature review.