Study of P-Delta Effect on Regular And Irregular RCC Buildings
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 4
Abstract
During earthquake, the building undergoes various random motions of the ground at its base, which induces inertia forces in the structure. Different types of irregularities are considered in the building viz. Mass irregularities and geometric irregularities in urban India, which are subjected to several types of forces. Earthquake load mainly induce lateral forces which causes lateral displacement of the structure. The effect of gravity load acting on the structures lateral displacement is called the P-delta effect. Due to P-delta effect, geometric nonlinearity induces in the building which creates additional moment and shear. It is generally observed that the regular buildings have a dominant fundamental results participation in their seismic responses and as the irregularity increases the contribution of it. Hence, In the present study, modelling and analysis of Regular and Irregular RCC building is carried out in SAP2000V16 considering P-delta effect using Time history analysis. Various parameters such as base shear, storey drift and overturning moment are obtained. It is found that p delta effect in building needs to be considered and controlled.
Authors and Affiliations
Payal Shah, V. G. Jadhav
Keywords
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- EP ID EP438405
- DOI 10.9790/1684-1504020110.
- Views 71
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