MULTI-ANCHORED PSC DOUBLE I TYPE GIRDER USING LOWER FLANGE ANCHOR

摘要

PURPOSE: A multi-anchored PSC double I-shaped girder utilizing an anchoring end of a lower flange is provided to be utilized to lower a height or to expand the span of a girder through continuation of the girder and to install a plurality of tendons at the sections of the lower flange. CONSTITUTION: A multi-anchored PSC double I-shaped girder utilizing an anchoring end of a lower flange comprises an upper flange, a web, and a cross beam vertically connected to the lower flange. A side of cross beam, on which an upper surface of the lower flange and the cross beam are crossed, is utilized for anchoring the ends of the tendons. A starting point and an end point for anchoring are mutually located on opposite sides based on a longitudinal direction vertical symmetry surface of the girder and prestressing is induced. [Reference numerals] (AA) Web; (BB) Cross beam; (CC) Lower flange; (DD) Tendon(top); (EE) Tendon(bottom); (FF) Anchor;