Patent ID: 6581343
Filing Date: 2003-06-24
Classification: E04B,E04C,Y10T

Abstract:
A girder in reinforced cement with a flat intrados and a flat or sloping extrados, characterized by the fact of its being composed of two symmetrical halves or first and second half-girders with adjacent parts meeting in a plane mid-way which is perpendicular to the intrados and equipped, near the extrados, with connecting plates for bolting and, near the intrados, with a joint device with bars parallel to said intrados;each half-girder having its own ordinary reinforcement, characterized by the fact that each half-girder has the connecting plate near to the extrados anchored to the ordinary reinforcement by means of reinforcing bars and equipped with various holes for blocking bolts and where the joint device near the intrados includes; one or more metal bars at a front and rear of the first half-girder which are bound by stirrups to the ordinary reinforcement of the first half-girder and where each bar ends in a protruding sleeve with an internal thread that protrudes partially towards the second half-girder; a tubular lining and a coupling tube in the second half-girder which are aligned and tied to the ordinary reinforcement of said second half-girder by means of stirrups, and where the coupling tube faces and is ready to receive the protruding sleeve in the first half-girder once the two girder halves are brought together, and second bars which pass into said tubular linings, each having a threaded end which screws into a sleeve in the first half-girder and an opposite end equipped with a tightening nut which rests against a blocking plate fixed to said linings and resting against one of a plurality of solid shoulders of the second half-girder.