EXPANSION JOINT OF THE SLAB-GIRDER BRIDGE Russian patent published in 2018 - IPC E01D19/06 

FIELD: construction.

SUBSTANCE: invention relates to bridge construction and can be used as the deformation joint that mates the roadway of the adjacent span structures of highway and city bridges. Deformation seam of the slab-girder bridge includes the joined ends of the reinforced concrete slabs of the roadway section of the slab bridge girders, which are located with the clearance with respect to each other, while overlapping the clearance between the ends of the slab of the roadway under their lower faces, the metal support plate, waterproofing, which is arranged on the surface of the connecting plates of the span structures of the bridge and above the metal plate, crushed-mastic filling in the asphalt-concrete cover of the roadway of the bridge, drainage elements, which are installed above the waterproofing of the slabs. On the part of the length of the expansion joint in the area of the ribs and haunches of the main beams, at both ends of the connected plates of the roadway in the area of the ribs and haunches of the main beams, the niches of the prismatic shape parallel to the lower face of the slab of the roadway are arranged along their ends, in which the support plate with the clearances relative to the vertical walls of the recess is placed and supported loosely by the longitudinal ends.

EFFECT: improved quality of the deformation seam due to the reduction in labor input.

1 cl, 2 dwg