DAMAGE JUDGEMENT METHOD OF PRECAST BEAMS POST-TENSIONED BY UNBONDED TENDONS AT WIDENED BEAM END

Abstract

The maximum experienced bending moment and drift angle were estimated from the maximum residual crack width at the tip of the widened section, and the degree of damage of the member was determined. As a result, the residual crack width in the case of hinge relocation and the yielding of the PC steel bar in the case of beam-end yielding type determined the degree of damage to the member. The decrease factor of seismic performance used in the damage classification was also able to determine the degree of damage of beam members in the hinge relocation type.