METHOD FOR EVALUATING PRESTRESS FORCE OF BONDED TENDON USING STRESS WAVE VELOCITY BY IMPACT

摘要

The present invention relates to a method for evaluating prestress force of a bonded tendon. The present invention comprises a first step which excites a prestressing strand of a bonded tendon with an excitation hammer, a second step which measures an acceleration response signal generated in the prestressing strand and receives the signal through a data logger, and a third step which measures stress wave velocity based on the acceleration response signal received from the data logger, and evaluates the prestress force of the bonded tendon based on the measured stress wave velocity in a control unit.