Analysis of P-Delta Effect on Multistory R.C. Building without and with Shear Wall

Author(s):

Neelapu Ramesh , ANDHRA UNIVERSITY COLLEGE OF ENGINEERING(AUTONOMOUS); Shaik Yajdani, ANDHRA UNIVERSITY COLLEGE OF ENGINEERING(AUTONOMOUS)

Keywords:

Linear static analysis, nonlinear static analysis, P-Delta, tall structures, Lateral displacement

Abstract:

P-Delta effect is secondary effect on structure .it is also known as, Geometric nonlinearity effect. As number of stories increases, P-Delta effect becomes more important. If the change in displacements, overturning moments and base shear is more than 10%, P-Delta effect should be considered in design. In this study, the P-Delta effect on high rise building and the change in P-Delta effect by including shear wall in building is studied. Linear static analysis (without P-Delta effect) and nonlinear static analysis (with P-Delta effect) on high rise buildings having different number of stories is carried out. For the analysis G+4, G+9, G+14, G+19, G+24, (i.e 5, 10, 15, 20, and 25storey) R.C.C. framed buildings without shear wall and G+4, G+9, G+14, G+19, G+24, G+29 and G+34 (i.e 5, 10, 15, 20, 25, 30 and 35storey) R.C.C. framed buildings with shear wall are modelled. Earthquake load is applied on structure as per IS-18939(2002) for zone V of medium soil condition. Load combinations for analysis is set as per IS-456(2000).All analysis is carried out in software ETABS. Bending moment, story displacement with and without P-Delta effect is calculated and compared for all models.

Other Details:

Manuscript Id	:	IJSTEV4I2015
Published in	:	Volume : 4, Issue : 2
Publication Date	:	01/09/2017
Page(s)	:	19-25

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