Alternative ABC Connections Utilizing UHPC

This paper proposes an innovative connection between a precast column and cap beam, which can potentially satisfy constructability requirements and expected seismic performance. The main characteristics of the proposed connection are desired plastic hinge location and large construction tolerances. An experimental test was performed to evaluate the seismic performance of the proposed connection. The observed displacement ductility exceeds those implied by design specifications. The most interesting aspect of the proposed detail is the certainty associated with where plastic hinge forms and its length.