STRUCTURE FOR DEBONDING OF PRESTRESSED CONCRETE BEAM MEMBER WITH PRESTRESSING TENDON AND MANUFACTURING METHOD OF PRESTRESSED CONCRETE BEAM MEMBER THEREBY

摘要

The invention Priest with a de-bonding structure and the structure of ginjangjae with built prestressed concrete beams relates to a method for manufacturing concrete beams rest, Priest body (1), tension in the longitudinal direction at a predetermined portion of the interior of the lower end of the Prestressed Concrete beams (A) a plurality of wire embedded as a tensile force given to the body (1) and a (1aa) ginjangjae multilayer strand formed by twisting up to (1a), and; ; multi-layer embedded in the tension strand (1a) while the predetermined region isolated from operators on both sides of each portion is composed of multi-layered strand (1a) concrete (3aa) for bonding the cover is not attached to D in both side ends of the bound (1b) of the body (1). ; The present invention, so that the cover (1b) for de-bonding at both ends of the multi-layered strand (1a) each of which is embedded in a predetermined portion of the lower end of the prestressed concrete beams (A) isolated from operators prestressed concrete beams ( A) and prevent the generation of unnecessary tension on both ends, debonding structure is compared with the case not prestressed concrete beams (A) of the cross section is cheap because it can reduce the number of embedded tensile reinforcement in the top half while reducing There is an effect that a very simple construction and can easily be as cost.