METHOD OF AND APPARATUS FOR INSERTING TENDON TO BE SUBJECTED TO POST STRESS TREATMENT INSERTED INTO CONCRETE STRUCTURE

摘要

In the post-stressing of concrete structures, a tendon comprised of a plurality of elongated strands is formed by inserting elongated strands which will eventually form the tendon into a plurality of parking ducts and then withdrawing the plurality of strands simultaneously as a group from the parking ducts and into the duct of the structure to be post-stressed without fouling and jamming. Once in the ducts of the structure, the strands are anchored and post-tensioned as a tendon to develop the desired stress.