Comparative Analysis of L-shaped RC frame Structures with and without Shear Wall as per IS1893-2002 and IS1893-2016
- July 23, 2018
- Posted by: RSIS
- Category: Civil Engineering
International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue VII, July 2018 | ISSN 2321–2705
Ajay Salimath1, Rajeeva S. V.2
1MTech student, Civil Engineering Department, S.J.B. Institute of Technology, Bangalore, Karnataka, India
2Professor, Civil Engineering Department, S.J.B. Institute of Technology, Bangalore, Karnataka, India
Abstract: Highrise structures are mostly affected by lateral loads and vulnerable to seismic forces. One of the main causes for failure of structures is their irregularity (either plan irregularity or vertical irregularity). In this study, the response of irregular structure with shape L situated in seismic zone V are evaluated. For the analysis, 25 storey building is considered. The analytical methods used in this dissertation work are response spectrum method and time history method. The seismic parameters for earthquake loads and functions are set as per IS1893-2002(1), IS1893-2016(1) and IS 16700-2017 and time history method is carried out using BHUJ earthquake data. The FEA software ETABS v15 is used for analysis. Also, the presence of shear wall and the behavior of structure by its inclusion is studied. For the study, totally eight models are considered whichare L-shaped structures (with and without shear wall analyzed using linear and non-linear dynamic method for IS1893-2002 and IS1893-2016). In this work, various parameters like storey drift, storey displacement, time period, base shear and modal mass participation ratio are obtained for all the models and have been compared. Also, the column forces at re-entrant cornerand interior column is compared.
Keywords: Seismic force, irregularity, response spectrum method, time history method, IS1893-2002(1), IS1893-2016(1), IS16700-2017, BHUJ earthquake, ETABS v15, re-entrant corners.
I. INTRODUCTION
The rapid growth in industrialization, population explosion and growing urbanization due to which high rise building have become necessary. The onrush of people to the urban areas or cities has resulted in huge demand for commercial buildings and shelter. With cities being the center of development and growth, there is a leading construction in the cities due to which buildings being built close to each other and the demand for land in cities has grown exponentially in association with this and rising inflation there is increase in land cost, raw materials and construction.
