Shaking Table Testing of a Low-Rise Reinforced Concrete Intermediate Moment Resisting Frame

Multi-level shaking table tests were performed on a 1:3 reduced scale two-story reinforced concrete (RC) intermediate moment resisting frame (IMRF) conforming to the requirements given in ACI-318-19. The exterior joints lacked shear reinforcement assess viability of ACI model recommended for determining design strength beam–column joint panel. One horizontal components 1994 Northridge earthquake accelerogram (090 CDMG Station 24278, Source: PEER strong motion database) was input multi-level testing. Plastic hinges developed beams under base with maximum acceleration equal 0.40 g. incurred extensive damage 0.70 achieved displacement ductility and overstrength factors (determined as ratio resistance share force) 2.40 2.50, respectively. This gives response modification factor 6. satisfactory performance is attributed high efficiency joint, which confined by spandrel two faces concrete. inherent minimal confinement sufficient ensure seismic behavior. analysis confirmed 1.58 comparison determined using model. data might serve reference calibrating validating numerical modeling techniques evaluation, are crucial context performance-based engineering.