Patent ID: 6460213
Filing Date: 2002-10-08
Classification: E01F

Abstract:
A concrete bridge system that contains a series of precast sections wherein each section further includesa planar horizontally disposed load bearing concrete deck wall, a pair of vertically disposed spaced apart concrete end walls integrally joined to the load bearing deck wall, each of said walls containing a plurality of light weight cores encapsulated therein, the cores in each wall being spaced apart laterally to establish a series of parallel concrete beams that are connected at one end by a first concrete header and at the other end by a second concrete header so that the beams in said side walls are in coplanar alignment with the beams in said deck wall whereby a load exerted on a deck beam is transferred directly to a coplanar aligned beams in each of the side walls, said cores constituting between 16 and 35 percent of the total volume of the section.