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Experimental Assessment of Bond Behavior and Structural Performance of High-Strength Concrete Beam-Column Joints under Static Load

Abhijeet C. Lande1 , Dr.Mahesh.M.Awati 2,Dr.Vidya M. Patil 3

1 Visvesvaraya Technological University, Belgavi,Karanatka, 590018, India,

2Principal,Tontadarya College of Engineeringand Technology Gadag,Karanatka, 582101,India

3 Annasaheb Dange college of Engineering and Technology  Ashta, 590018, India

Abstract - This study explores the bond characteristics and structural behavior of reinforced concrete (RC) beam-column joints constructed with High Performance Concrete under static loading conditions. Beam-column joints are critical structural elements whose failure can compromise the entire frame integrity, especially during seismic events. Twelve specimens, including L- and T-shaped configurations with M30 and M60 concrete grades, were fabricated and assessed. The investigation focused on reinforcement detailing, development length provisions, and HPC’s influence on load-displacement responses. Findings demonstrate that HPC enhances joint strength, reduces deflections, and improves ductility compared to conventional concrete. Particularly, T-section joints with M60 HPC achieved superior load capacity and lower deflections. Incorporating development length in L-section joints raised strength and decreased deflections by over 20%. Numerical simulations using ANSYS closely matched experimental data, confirming the reliability of the computational model. These results support the use of HPC in beam-column joints for improved performance in high-rise and earthquake-resilient structures.

Key Words: High Performance Concrete, beam column joint, static loading, reinforcement detailing, ANSYS simulation.