• Hrishikesh R. Khalokar
• Prof. P. S. Lande

Punching shear resistance of flat slabs is designed using test data from isolated slab-column connections. The compressive membrane effect of a continuous slab-column system, however, is neglected when evaluating separate slabs. As a result, punched shear strength may be lower than the actual strength of the slab structure. Testing a continuous slab system is extremely expensive and, in most situations, impossible. In this study, finite element analyses (FEA) are used to compare data from isolated specimens and continuous floor systems to explore the influence of compressive membrane action on flat concrete slabs. The FE formulation and material characteristics used have previously been calibrated on an isolated test specimen (SB1). At First, calibrated FEA are utilised to study the boundary conditions of the slab-column connection (SB1). The boundary conditions are then changed, and the slab is assumed to have greater in-plane dimensions in order to test its continuity. The models are then evaluated for varied reinforcement ratios by giving varying diameters of flexural reinforcements using Finite element analysis. The failure displacements, failure loads, and fracture pattern of all models are investigated. A continuous floor system is also being developed to study the fracture patterns at the interior and exterior columns. The outcomes of the isolated and continuous models are compared. All of the model findings reveal that the punching shear capacity of a continuous slab is larger than that of a standard isolated slab. The predictive capacity of the FEA models may allow for more study on the effect of compressive membrane action to supplement the limited testing background in this area and give recommendations for future design provisions.

Flat plates, Reinforcement ratio, Finite element analysis, Punching shear, slab-column connection, membrane action, crack pattern.

"FINITE ELEMENT ANALYSIS OF PUNCHING SHEAR IN FLAT SLABS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 7, page no.i175-i186, July-2023, Available :http://www.jetir.org/papers/JETIR2307824.pdf

"FINITE ELEMENT ANALYSIS OF PUNCHING SHEAR IN FLAT SLABS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 7, page no. ppi175-i186, July-2023, Available at : http://www.jetir.org/papers/JETIR2307824.pdf