Abstract

Reinforced concrete and steel are the materials that are mostly used in the framing systems for most of the
buildings of high tensile strength and ductility while concrete members have advantages of high compressive
strength and stiffness. In the present study, G+23 multistory residential building, Bengaluru, which is situated
in earthquake Zone II, considered with three different column and floor systems A, B, and C. The systems are
A -“Beam slab system-1,” L-shaped vertical elements are defined as columns, B - “Beam slab system-2,”
L-shaped vertical elements are defined as walls. C - “Flat plate system,” L-shaped vertical elements are defined
as columns, peripheral beams are considered. There are no internal beams, so it gives esthetic appearance and
more spacious than traditional beam slab system.A three-dimensional modeling and analysis of structure are
carried out with the help of ETABS software. Equivalent static analysis, response spectrum method, and p-delta
analysis are carried out on the multistory residential building. L-shaped columns are defined by section designer.
For seismic analysis provision of IS: 1893 (Part 1) is considered. Loads are considered from Indian standards.
The results are compared in terms of the story shear, story drift, and diaphragm center of mass displacement.
Parametric studies are carried out by considering two interior columns, two exteriors, and two corner columns.
In those columns, axial forces, moments, and major and minor bending moments are compared. Here, three types
of comparison are done for the multistory residential building, namely, static verses dynamic analysis, dynamic
analysis considering without P-delta effect verses with P-delta effect, and dynamic analysis considering without
live load reduction verses with live load reduction. From the analysis, it is observed that relatively system-B is
more flexible and system-C is stiffer