CURVE TYPE PREFLEXION STEEL BEAM FRAME USING PREFLEXION FOR INSTALLING REINFORCING MATERIAL AT CURVED STEEL MATERIAL OF A CURVED STEEL FRAME AND METHOD FOR MANUFACTURING THE SAME

摘要

A method for manufacturing a curve type preflexion steel beam frame adopting preflexion for equipped with a reinforcing material is provided to make the installation of a curved bridge simple and to improve the structural strength of the curved bridge. A method for manufacturing a curve type preflexion steel beam frame adopting preflexion for equipped with a reinforcing material comprises a step of making a curved steel which is bent to the side to fit for the radius of curvature of a curved bridge, a step of making a curved steel frame by connecting the pair of curved steel with a bracing(21), a step of installing the curved steel frame on the upper and lower sides and placing a spacer between both ends of the upper and lower curved steel, a step of mounting steel caps on both ends of the curved steel and making a curved steel frame assembly by connecting the steel caps with a steel wire or steel bar, a step of mounting a jack at specific intervals between the upper and lower curved steel, a step of bending the curved steel by the jack, and then mounting a reinforcement member(40) with a reinforced steel plate(41) onto a flange(11) of the bent portion or attaching shear connectors and applying high-strength concrete onto the flange, and a step of removing the jack.