Experimental and Numerical Study on the Seismic Performances of Reinforcement-Embedded RC Column-to-Precast Cap Beams with Socket Connections

Accelerated bridge construction (ABC) has attracted much attention in China as a new and efficient method. However, the seismic performance of connections between precast piers other structures limits application ABC medium high zones. In this paper, quasi-static test was conducted to investigate differences cap–column socket connection (PSC) specimen, which reinforced an embedded RC column-to-precast cap beam with connection, cast-in-place (CIP) specimen. A fiber-based finite element model that considers bond slippage reinforcement wet joint concrete is proposed. The numerical simulation results compared experimental show error about 12% peak bearing capacity 2% initial stiffness. PSC specimen demonstrates comparable CIP Experimental verified paper adequate predict responses column reinforcement-embedded connection. can be effective solution for areas.