Seismic Analysis of Multi Storey Bulding in P-delta Effect

Author(s)	Prof. Shaik Abdulla, Dr. Mohammed Faisaluddin, Mohammed Yusuf Bhosge
Country	India
Abstract	The behavior of structures, when subjected to critical loads is a complex phenomenon and is basically dependent on the type of forces/loads acting on the structure, magnitude of force, direction etc. In this paper the effect of P-Delta on multi storey buildings is studied. The four models i.e. 5, 10, 15, and 20 storey are modeled and analyzed using ETABS v 16.02 software. The non-linear static analysis is performed to account for the P-Delta effect on the four types of building models and is compared with linear static analysis using ETABS v. 16.02 The variation in the axial forces, storey shears, displacements and bending moments with and without the consideration of P-delta effect is compared. The results have shown that, the models analyzed with considering P-delta effect (non-linear static analysis) have significantly more values of displacements, axial forces, bending moments and storey shears when compared with the models without considering the P-delta effect (linear static analysis). Therefore, the P-Delta effect is significant and must be considered in the analysis of multi storey buildings.
Keywords	Linear static analysis, P-delta effect, nonlinear static analysis, ETABS
Field	Engineering
Published In	Volume 7, Issue 5, September-October 2025
Published On	2025-10-02
DOI	https://doi.org/10.36948/ijfmr.2025.v07i05.57044

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