COUPLING DEVICE OF BUILT-UP REINFORCED-CONCRETE SLAB WITH STEEL BEAM OF STEEL REINFORCED-CONCRETE BRIDGE Russian patent published in 2002 - IPC

FIELD: bridge building, applicable in steel reinforced-concrete bridge frameworks for combining of the built-up reinforced-concrete slab of the roadway with the steelwork. SUBSTANCE: coupling device has insertion pieces in the roadway reinforced-concrete slab provided with holes aligned with the holes in the main beam for coupling the slab to the beam. The novelty is in the fact that the anchoring device on the main beam is made in the form of a metal bar having a horizontal hole receiving a cylindrical nut, and an inclined hole for a stud pin. EFFECT: enhanced reliability of coupling, maintainability, reduced specific quantity of metal per structure and labor content. 2 cl, 2 dwg