Framed Precast Concrete Bridge without Slab Placed in-situ

摘要

The present invention is a bridge construction by assembling the type I or double I-type precast concrete beams in which the mold and the bottom plate are integrally assembled, so that the separate bottom plate and the mold can be assembled in the field or the bottom plate is placed by the site-casting concrete. The present invention relates to a prefabricated floorless precast concrete bridge structure that does not require the construction of a floor plate such as a construction in the.;In the present invention, a type I precast concrete beam or a double type I precast concrete beam having a vertical web and a cross section consisting of an upper flange and a lower flange formed to have a predetermined thickness and length horizontally on the upper and lower portions thereof is oriented in the axial direction. Bridges are formed by being arranged side by side and assembled, and the upper flanges of the neighboring I-type precast concrete beams or double I-type precast concrete beams are connected to each other to form a bottom plate of the bridge, so a separate bottom plate is required. A prefabricated flat plate precast concrete bridge structure is provided, which is characterized in that it does not.;In the present invention, since the top flanges 12 and 12 'of the beams 10 and 10' are connected to each other to form a bottom plate of the bridge, there is no need to install a separate bottom plate on the mold as in the conventional case. There is no need to install a separate bottom plate, thereby simplifying construction, reducing construction costs and shortening air.