Monent Rotation Behavior of Unbonded Post - Tensioned Precast Concrete Beam - Column Connections

摘要

An unbonded post - tensioned precast concrete beam - column connection is constructed by post - tensioning the beam to the column using strands or bars that are not bonded to the concrete. The clamping force between the beam and the column provides vertical shear force transfer at the interface between the beam and the column, so a corbel is not needed. This type of connection is a ductile connection where, under seismic Loading, nonlinear behavior occurs at the interface between the beam And the column, and in the beam immediately adjacent to the column.