A novel assembled wall column-foundation joint was proposed.The joint utilized grouting sleeves to connect the rein-forcing bars of precast columns and precast foundations.A dovetail connection method was employed at the concrete joint interface to enhance the shear resistance of the cross-section.Quasi-static tests were carried out on the full-scale models of prefabricated joints and cast-in-place joints,and comparative analysis was conducted on the experimental phenomena and results between the two joint models,including failure modes,hysteresis curves,skeleton curves,load-carrying capacity,ductility coefficients,equivalent viscous damping coefficients,and stiffness degradation curves.The study reveals that failure of the prefabricated joint is primarily due to upper sleeve concrete crushing and reinforcement bar buckling.It possesses a load-bearing capacity that surpasses cast-in-place joints by 4%.With a ductility coefficient of 3.3,it falls below that of cast-in-place counterparts,meeting the requirements specified for"equivalent cast-in-place".
fabricated wallcolumn-foundation jointfull-scale modelquasi-static test