EXPANSION JOINT Russian patent published in 2017 - IPC E01D19/06 

FIELD: construction.

SUBSTANCE: method is implemented in the expansion joint of closed type between the superstructure and the enclosure wall of end supports, comprising the connecting slab of the span structure installed over the superstructure end supports, partially overlapping the transition slab made with the stopper, between which and the connecting plate a gap to compensate for the span displacement while at the contact with the connecting slab the surface of the transition slab PTFE plate is located in the gap between the connecting slab and the stopper of the transition slab the waterstop is installed, over the connecting slab and the transition slab the leveling layer of asphalt concrete pavement is arranged, which is reinforced with geogrid, under the leveling layer of connecting slab a solid layer of lining hydraulic sealing and the sheet metal, overlapping from above the clearance for movement compensation are laid.

EFFECT: improvement of operating reliability of the expansion joint design, its durability by eliminating the possibility of ingress of water, dirt, salt, and a variety of subjects in the underlying structures and bridge structure elements.

7 cl, 1 dwg