DESIGN OF A CONTROL JOINT BETWEEN UPPER DECK SLABS Russian patent published in 1994 - IPC

FIELD: construction. SUBSTANCE: design of a control joint between bridge upper deck slabs includes edging members of angle shapes, washers, toothed plates, spring-actuated clamp, rest members, and a water drain trough. The structure is provided with brass sheets. Slopes faces are made in the vertical plane on the side faces of the plate teeth. The brass sheets are disposed between washers and plates in the toothed areas. The rest members are made in the form pins provided with polyurethane bushings rigidly attached to edging members. The bushings and the pins are installed together in coaxial holes made in washers and toothed plates. The water drain trough is made as a pull-out construction member. EFFECT: enlarged operating capabilities. 3 dwg