The seismic behaviour of precast concrete interior joints with different connection methods in assembled monolithic subway station

The study investigated the performance of a specific full-scale precast concrete interior joint using many connected methods (e.g. grouted sleeves, anchorage arrangements, corbels) in core region joint, whilst monolithic cast-in-place specimen served as control. important indexes terms failure mode, hysteretic behavior, strength, deformation performance, and stiffness degradation were under low-reversed cyclic loading. new cross-lapping connection slab was presented position interface between two layers lamination optimized. experimental analysis results indicated that, (1) specimens capable matching peaking strength while displacement ductility modes joints different; (2) elastic–plastic boundary 1/550 which used to evaluate structures should be carefully selected design; (3) an effective range for thickness ratio upper layer (post-pouring concrete) lower (precast presented; (4) bend-up reinforcement at ends semi-precast performed another optional method.