Numerical Investigation on the Performance of Exterior Beam–Column Joints Reinforced with Shape Memory Alloys

Upgraded design standards coupled with the damage caused by natural disasters have led to development of smart materials potential modernize current construction practices. This investigation proposes a nonlinear finite element (FE) model for evaluating performance beam–column joints (RC-BCJ) reinforced shape memory alloys (SMA) and steel rebars. The was validated based on accredited experimental data, followed parametric analysis in ABAQUS optimize use SMA bars enhancing seismic resistance RC-BCJ without compromising their energy dissipation capacity. Parameters investigated include (a) SMA–steel reinforcement ratio, (b) lengths bars, (c) elastic modulus SMA, (d) compressive strength concrete, (e) axial load applied column. simulation results indicated that capable predicting optimum length sufficient relocating plastic hinge away from face column along beam. Further, proved conjunction could be considered as an effective tool joints. Among parameters investigated, high-strength concrete most improving joint resistance.