• Smrutee Kundalik Shinde
• Dr. Mahesh G. Kalyanshetti

In recent decades, Soil Structure Interaction (SSI) has been given much attention in both research and practice. The two reasons are its important effect on the response of buildings in earthquakes and second its complexity. The need of seismic analysis is to determine the behavior of structure during earthquake. Earthquake forces can act in any direction on the structure and also seismic performance depends on plan geometry of structure. Thus there is a need of identifying the incident angle and the shape of the structure which produces worst effect. In the present study G+15 building of different plan geometry ‘L’ shape, ‘Plus’ shape, ‘T’ shape and ‘Square’ shape are considered for the analysis. The incident angles (IA) considered are ‘00’, ‘300’, ‘450’ and ‘600’. The study is aimed to evaluate the SSI effect. Therefore the actual field conditions are considered which consists structure and a supporting soil media. The analysis is carried out considering structure resting on a soil mass consisting two layers. This SSI model is developed using ETABS application software. The seismic analysis is carried out using equivalent static method in accordance with IS 1893:2002. The parameters considered for the analysis is Beam Bending Moment, Roof Displacement and Storey Drift. Based on the result obtained most effective shape of the building and the worst incident angle are identified.

Soil Structure Interaction, Seismic Response, Equivalent Static Force Method, incident Angle ,Seismic Zone

"Seismic Performance of Building Frames of Various Plan Geometry With Different Incident Angle of Earthquake Forces Considering Soil Structure Interaction", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.31-38, June 2019, Available :http://www.jetir.org/papers/JETIR1906G72.pdf

"Seismic Performance of Building Frames of Various Plan Geometry With Different Incident Angle of Earthquake Forces Considering Soil Structure Interaction", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp31-38, June 2019, Available at : http://www.jetir.org/papers/JETIR1906G72.pdf