JOINING DEVICE OF SECTIONAL REINFORCED CONCRETE SLAB IN STEEL AND REINFORCED CONCRETE BRIDGE Russian patent published in 1999 - IPC

FIELD: bridge-building technology. SUBSTANCE: joining device can be used in span structures of bridges for combining sectional reinforced concrete slab of carriage way with metal structure of bridge. Device has components embedded in reinforced concrete slab. Embedded components has openings which are coaxial with holes made in main girder of bridge for high-strength bolts which ensure joining of slab with girder. Embedded components secured in slab by means of anchors are made in the form of steel sleeves with bottom which is kept in contact with upper girth of main girder of bridge in which openings are provided for high-strength bolts. Structurally, sleeve can take the form of pipe and sheet combined together by means of welding. Aforesaid embodiment of device improves reliability of joining, affords good repairability, reduced amount of materials needed for construction, and less labour-intensity. EFFECT: higher efficiency. 2 cl, 2 dwg