Method and apparatus for inserting post-stressing tendons in con

Details Method and apparatus for inserting post-stressing tendons in con Method and apparatus for inserting post-stressing tendons in con

1976-05-04

1978-06-20

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

29241, 29433, 29452, 254 1, 2541343R, B23P 1700

Patent

active

040953262

ABSTRACT:
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.

REFERENCES:
patent: 3106771 (1963-10-01), Spiro
patent: 3225500 (1965-12-01), Martter
patent: 3672015 (1972-06-01), Fisher
patent: 3827132 (1974-08-01), Bratchell
patent: 3942238 (1976-03-01), Dore
patent: 3975815 (1976-08-01), Mori

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