INFLUENCE OF ASPECT RATIO ON TALL BUILDING FRAMES WITH AND WITHOUT SHEAR WALL
Abhijeet Gupta
M.E (Structure Engineering) Student, Civil Engineering Department, J.E.C. Jabalpur, M.P., INDIA , IN
Dr. Rajeev Chandak
M.E (Structure Engineering) Student, Civil Engineering Department, J.E.C. Jabalpur, M.P., INDIA , IN
Vivek Vishwakarma
M.E (Structure Engineering) Student, Civil Engineering Department, J.E.C. Jabalpur, M.P., INDIA , IN
Keywords: Aspect Ratio, Building Configuration, internal shear wall, external shear wall, Linear Elastic Dynamic Analysis, Response Spectrum Analysis, Seismic Performance, ETABS- 2016.
Abstract
Seismic performance of a building depends on many factors such as loading, loading type, its plan configuration, sectional properties, aspect ratio, seismic zone, etc. and these factors can be enhanced by using adequate earthquake resistant measures such as bracing, using shear wall and many more. In this paper we consider the behavior of building model on altering its aspect ratio (horizontal (L/B) and vertical (H/B) aspect ratio) by increasing number of bays and number of stories and analyzing each aspect ratio model for
having no shear wall, than internal and finally external shear wall keeping other factors similar in each model. In total we studied 27 models for different combination of horizontal aspect ratio 1, 4, 6 and vertical aspect ratio 1, 4, 6. And eventually we compared seismic performance on the basis of certain seismic parameter like base shear, max storey overturning moment, top storey displacements, storey drifts in x and y direction respectively as per IS 1893- 2002 for the seismic zone 3 (Jabalpur). The models are analyzed for different load combinations linear static and linear elastic dynamic analysis (Response spectrum analysis) with the help of software Etabs-2016.
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