发明名称 IRON BAR BENDING METHOD FOR PSC GIRDER AND PSC GIRDER BUILT THEREWITH
摘要 PURPOSE: A method for bending a reinforcing rod for a PSC(Prestressed Concrete Girder) having a curved surface and a prestressed concrete girder using the same are provided to reduce stress concentration on the concrete section of a PSC girder by employing a curved surface and prevent the plastic deformation of a reinforcing rod due to bending. CONSTITUTION: A method for bending a reinforcing rod for a PSC comprises steps of: supplying a reinforcing rod(2) to the upper side of an upper plate(10), holding the supplied reinforcing rod with a reinforcing rod fixing unit(20), drawing an up/down jig(40) out of the upper side of the upper plate, transferring the reinforcing rod upward so that the reinforcing rod is bent upward around a stationary roller(15), supporting the transferred reinforcing rod with the up/down jig and the stationary roller so that the reinforcing rod is bent downward with a movable roller(30), bending the reinforcing rod upward again with the movable roller, and returning the movable roller to the original position and releasing the holding of the reinforcing rod.
申请公布号 KR101021462(B1) 申请公布日期 2011.03.15
申请号 KR20100102548 申请日期 2010.10.20
申请人 JANGHEON INDUSTRY CO., LTD.;HANMAC ENGINEERING & CONSULTANT CO., LTD. 发明人 SEO, SUNG YEOL
分类号 B21D7/04;B21F1/00;E01D2/02;E04C3/26 主分类号 B21D7/04
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