Analysis & Design of Omrf & Smrf Structural System for Steel Buildings Using Is 800-2007

Abstract

The objective of this study is to investigate the seismic behavior of the structure i.e... OMRF (Ordinary moment resisting frame)  &  SMRF (Special R C moment Resisting frame). For this purpose 5^th, 10^th, 15^th , 20^th storied structure were modeled and analysis  was  done using Staad.Pro software and using the codes for analysis, IS 1893:2002,  IS 456: 2000. The study assumed that the buildings    were located in seismic zone II (Visakhapatnam region).The study involves the design of alternate shear wall in a structural frame and  its orientation, which gives better results for the OMRF & SMRF structure constructed in and around Visakhapatnam region. The buildings are modeled with floor area of 600 sqm (20m x30m) with 5 bays along 20 m span each 4 m. and 5 bays along the 30 m span each 6 m. The design is carried out using STAAD.PRO software. Shear  walls are designed by taking the results  of the maximum value  of the stress contour  and calculation are done manually by using IS  456-2000 and IS 13920-1993. The displacements of the current  level relative to the other level above or below are considered. The preferred framing system should meet drift requirements.

1. 1.                  Up to 20 floored building subjected to seismic load for Visakhapatnam without shear wall
2. 2.                  Up to 20 floored building subjected to seismic load for Visakhapatnam with shear wall