| 摘要 |
PURPOSE: A P.S.C beam continuous construction method using a steel coupler is provided to lighten and lengthen a beam without using an expansion joint device by connecting continuously each beam of a bridge by a steel coupler and tensioning continuously by using a continuous tensioning steel wire installed to each beam wavily. CONSTITUTION: The P.S.C beam continuous construction method using a steel coupler comprises the steps of: installing an abutment(1), a pier(2) and a temporary bent(3); forming each beam(11)(12a)(12b), laying and fixing a steel coupler to both ends and installing an individual tensioning steel wire(200) to each beam(11)(12a)(12b); tensioning each beam(11)(12a)(12b) by using a stretcher primarily; placing each beam(11)(12a)(12b) over the pier(2) and the temporary bent(3) by using a crane; connecting the steel coupler installed to both ends of each beam(11)(12a)(12b) continuously; after installing a continues tensioning steel wire to each beam(11)(12a)(12b) wavily and setting both ends to an anchorage fixed to both outer ends of end coupling beams(11), tensioning by a stretcher secondarily; placing and curing a horizontal girder and a slab on each beam(11)(12a)(12b); and tensioning the continuous tensioning steel wire and the individual tensioning steel wire(200) thirdly.
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