Studies on Strength Properties of RC Beam Column joint With Basalt Reinforcement

In recent earthquakes it has been observed that beam–column joints are highly exposed to lateral loads, causing severe joint deformations, yielding, and possible failure of the overall structure. Poor joint design is aggravated by the high demand from adjacent beams and columns as they mobilize inelastic behavior to dissipate energy, so that even when other members satisfy design requirements, unsafe joint detailing can compromise the entire frame. To address this, basalt rebar is introduced as an alternative reinforcement material to study its effect on the structural performance of RC beam–column joints. An experimental program is conducted on specimens reinforced with both conventional steel and basalt rebars, with detailing carried out in accordance with seismic design codes. The behavior is evaluated in terms of crack formation, load-carrying capacity, and energy dissipation. Test results are tabulated and graphically presented, enabling a comparative assessment between steel-reinforced and basalt-reinforced beam–column joints.