SUCCESSIVE CONSTRUCTION METHOD OF PRESTRESSED CONCRETE GIRDER REFLECTED COMPRESSIVE LOAD ON SUPPORT AND BRIDGE USING IT

摘要

The present invention relates to a kind of construction of sequential compression beam, using being supported on steel bar and bridge uses. The method is provided and sequentially constructs beam by length-adjustable tension control units (4) to bind steel bar and crossbeam, steel anchorage is applied tension to control tension control units (4), and apply prestressing force (pressure) and beam support, to offset the torsional moment beam support of generation. This method successively constructs the beam and the free end rod iron exposing for manufacturing beams of concrete (2) that compression beam includes: step (1) fixed steel bar one or both ends; Comprising steps of loading and continuously manufacturing the top bridge pier (3) of concrete beam (2); In conjunction with step steel pole (1), these are connected with each other, and concrete beam (2) are fixed on, by using the tension control units (4) of adjustable in length and fixation and successively construction concrete girder (2), which is arranged in a row; Apply compressing force or drawing force to the length (2) of concrete girder by selectively controlling tension control units (40), in conjunction with steel pole (1), stretches or compress steel bar (1); Concrete girder (2) are filled up in gap between step, are placed in these tension control units, are used concrete. ;The 2014 of copyright KIPO submissions