A Case Study on Seismic Analysis of an Irregular Structure
S. K Abid Sharief1, M. Shiva Rama Krishna2, S. V Surendhar3

1S. K Abid Sharief, M.Tech Student, VFSTR University, Vadlamudi, Guntur (Andhra Pradesh), India
2M. Shiva Rama Krishna, Assistant Professor, VFSTR University, Vadlamudi, Guntur (Andhra Pradesh), India
3S. V Surendhar, Assistant Professor, VFSTR University, Vadlamudi, Guntur (Andhra Pradesh), India
Manuscript received on 07 April 2019 | Revised Manuscript received on 20 April 2019 | Manuscript published on 30 April 2019 | PP: 1856-1860 | Volume-8 Issue-6, April 2019 | Retrieval Number: F3852048619/19©BEIESP
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Abstract: The seismic behaviour of buildings with a different configuration in mass, stiffness and strength along the height may significantly differ from that of the similar properties of regular buildings. In many design codes adopted by different countries for Earthquake resistant and ductile design of structures, educational buildings are defined as important structures. Therefore, Design of such structures is carried out in a manner such that the damage due to ground motion is as minimal as possible with minor damages to the structural members being allowed. This is a case study on the seismic performance of irregular structure located in Andhra Pradesh (falling under seismic zone III). First, the results of reconnaissance studies regarding the seismic response of the college buildings are presented, this scenario indicates that the seismic effect depends upon type irregularity and site hazards but the seismic effect will be more in irregular structure rather than in regular structure. Three-types of analysis are performed for the buildings to understand the seismic response of the structure in an efficient manner. Linear static method, linear dynamic analysis & non-linear time history analysis has done. Then the seismic performance of the particular building is assessed by applying the procedures according to the latest design code. The final results displays that the seismic analysis of a particular vertically irregular buildings in terms of maximum story drift, story displacement, story shear, p-delta effect.
Keyword: Vertical Irregularity, Framed Building, Reinforced Concrete, Seismic Risk, Drift hazard Curve.
Scope of the Article: Behaviour of Structures