International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 10 Issue: 08 | Aug 2023 www.irjet.net p-ISSN: 2395-0072 © 2023, IRJET | Impact Factor value: 8.226 | ISO 9001:2008 Certified Journal | Page 179 “Comparative Analysis of RC Multi-Storey Building Framed Structure With and Without Considering P-Delta Effect” Yash Katare 1 , Prof. Anubhav Rai 2 1 M-Tech Student, Structural Engineering, Gyan Ganga Inst. Of Technology & Sciences, Jabalpur, M.P. India 2 Prof. & Head of Civil Engineering Department, Gyan Ganga Inst. Of Technology & Sciences, Jabalpur, M.P. India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - In this exploration work correspond of four structure models with G 13 storey height and analysis is done with and without considering the P- Delta effect with Staad Pro Software. In this work the following parameters are used like Size of Column = 500 mm X 650 mm Beam = 500 X 600 mm, Height of each bottom = 3.5 m, Consistence of Arbor = 180 mm, Support- Fixed Support, arbor dead cargo4.5 KN/ mm2, masonry cargo13.34 KN/ m, for alcazar4.60 KN/ m, bottom finish1.0 KN/ m2, Live cargo on typical bottoms = 3.0 kN/ m2, Live cargo seismic computation = 0.75 kN/ m2 and other parameter similar as Seismic Zone- III and V, Type of soil- Medium Soil, Analysis Done With and Without Consideration of P- Delta Effect for Each Models, Damping = 5( as per table- 3 clause6.4.2), Zone factor for zone III, and V, Z = 0.16 and0.36, significance Factor I = 1.5( Important structure as per Table- 6), Response Reduction Factor R = 5 for Special RC Moment defying Frame( Table- 7), Sa/ g = Average acceleration measure( depend on Natural abecedarian period). In this exploration work the 4 model of different fabled with consider two seismic zone, medium soil condition with and without considering P- Delta effect that's total 16 models are anatomized by the software and relative analysis is done in the term of Maximum storey relegation, maximum bending moments, maximum shear force and maximum axial force. Key Words: P-Delta effect, second order effect, building models, storey drift, storey displacement, seismic zones. 1. INTRODUCTION In conventional first order structural analysis, the equilibrium is expressed in terms of the figure of the disfigured structure. In case of linearly elastic structure, relation between relegation and external force is commensurable. In addition, stress- strain relationship of material is direct. therefore, by description, this system excludes nonlinearity, but it generally represents conditions at service loads veritably well. The first order elastic analysis is grounded on following hypotheticals( 1) Material behaves linearly and hence all yielding effect can be ignored.( 2) The member behaves linearly, and the member insecurity effect similar as those caused by axial contraction( these are called P- δ goods), which reduces the member’s flexural stiffness, can be ignored.( 3) The frame also behaves linearly, and the frame insecurity goods, similar as those caused by the moments due to vertical frame deviation and graveness loads acting on the displaced structure( these are called P- ∆ goods), can be ignored. Though the first – order elastic analysis provides an ‘ exact result ’ that satisfies the conditions of comity and equilibrium of the disfigured structure, it doesn't give any information about the influence of malleability and stability on the behaviours of the structure. Hence, these influences are typically handed laterally in member capacity checks. A first- order elastic analysis is sufficient for normal framed structures, which are braced against sway, still, first- order elastic analysis won't yield sufficiently accurate results for some suspense systems, bends, altitudinous structures, and structure subordinated to early localized yielding or cracking. Modeling of Building Frames A RCC Structure is for the utmost part a gathering of shafts, Columns, Crossbeams and establishment connected to one another as a solitary unit. By and large the exchange of burden in these structures is from section to bar, from bar to member incipiently member to establishment which therefore moves the whole burden to the dirt. In this examination, we've embraced colorful cases by awaiting colorful shapes for the structure displayed exercising STAAD- Pro. We've embraced three cases by awaiting distinctive arrangement of L- Shape. 1.1 Building Plan Configurations Fig.1.2a Common Plan of building