Abstract: To realize concentrated dissipate energy and structural function resilience of steel frame, a kind of beam-column joint with replaceable T-stubs has been proposed. The design objective can be achieved by controlling design resistance capacity coefficients with T-stubs and frame beams, whilst the structural function can be quickly recovered by only replacing the damaged T-stubs. A total of four specimens are designed and fabricated, and the seismic performance was studied through tests and finite element analysis. Then, the damaged T-stubs were replaced, and the structural function resilience performance was evaluated by function recovery efficiency and function recovery quality, including replacement residual rotation, hysteresis response, components energy dissipation and so on. The results show that all specimens are semi-rigid connection. The specimens with low yield point steel T-stub components have higher rigidity, better ductility, and larger safety stock, which is recommended to give priority to actual engineering structures. In addition to the slight plasticity at the root of the steel beam cantilever section in the later stage of the test, the non-energy dissipation members such as beams and columns of the other specimens are in an elastic state, and the energy dissipation ratio of T-shaped steel is more than 90%. It provides the possibility for the rapid recovery of function after earthquakes. With the relatively thin stem plates, the RT-2 has the largest T-stub replaceable residual rotation and beam end replaceable residual rotation. The replaceable performance of T-stub specimen with low yield point is better than that of ordinary steel specimen. Although the ductility coefficient of the replaced specimen is slightly lower than that of the original one, the initial stiffness and bearing capacity are almost consistent. The replaceable T-stubs can still play the role of concentrated energy consumption. After the specimen is disassembled and replaced, the structural function recovers quickly and the resilient performance is good.