Expansion joint for concrete slabs

Claim 2

In a roadway comprising a plurality of spacedly adjoining concrete slabs with generally horizontal upper surfaces and traction layers supported on said surfaces, the combination therewith of an expansion joint in a gap between a pair of said slabs, said expansion joint including two metal profiles on opposite sides of said gap and a flexible sealing strip spanning said gap; each of said profiles comprising a substantially horizontal flange received in a recess of the upper surface of a respective slab of said pair, an upstanding web rising from said flange to the top of said layer and resting on a ledge of said slab, and a rib flush with the top of said layers projecting integrally from said web into said gap while spacedly confronting a corresponding rib on the other profile; said profiles being provided with clamping means securing opposite edges of said strip to the undersides of the confronting ribs.

Claim 3

The combination defined in claim 1 wherein said profiles are provided with anchor means imbedded in said strip.

Claim 4

The combination defined in claim 2 wherein said anchor means comprises a set of loops secured to the underside of said flange.

Claim 5

The combination defined in claim 1 wherein said strip has an angular cross section with an upwardly pointing vertex substantially at the level of the top of said layer.

Claim 6

The combination defined in claim 1 wherein said strip consists of elastomeric material.

Claim 7

In a roadway comprising a plurality of spacedly adjoining concrete slabs with generally horizontal upper surfaces and traction layers supported on said surfaces, the combination therewith of an expansion joint in a gap between a pair of said slabs, said expansion joint including two metal profiles on opposite sides of said gap and a flexible sealing strip spanning said gap; each of said profiles comprising a substantially horizontal flange received in a recess of the upper surface of a respective slab of said pair, an upstanding web rising from said flange to the top of said layer, and a projection extending integrally from said web into said gap while spacedly confronting a corresponding projection on the other profile; said profiles being provided with clamping means securing opposite strip edges to the confronting projections of said profiles said projection being a continuous rib member; said clamping means comprising a bar member substantially coextensive with said rib member and vertically spaced therefrom for gripping said strip therebetween, one of said members underlying the corresponding edge of said strip, the other of said members overlying said corresponding edge and being substantially flush with the top of said layers; said strip having an angular cross section with an upwardly pointing apex substantially at the level of the top of said layer in a relative position of said slabs in which said other of said members on one side of the slab is separated from the corresponding member on the other side of the slab by a distance substantially greater than twice the thickness of said strip whereby the latter forms two downwardly diverging flanks on opposite sides of said apex.

Claim 8

In a roadway comprising a plurality of spacedly adjoining concrete slabs with generally horizontal upper surfaces and traction layers supported on said surfaces, the combination therewith of an expansion joint in a gap between a pair of said slabs, said expansion joint including two metal profiles on opposite sides of said gap and a flexible sealing strip spanning said gap; each of said profiles comprising a substantially horizontal flange received in a recess of the upper surface of a respective slab of said pair, an upstanding web rising from said flange to the top of said layer, and a projection extending integrally from said web into said gap while spacedly confronting a corresponding projection on the other profile; said profiles being provided with clamping means securing opposite strip edges to the confronting projections of said profiles said projection being a continuous rib member; said clamping means comprising a bar member substantially coextensive with said rib member and vertically spaced therefrom for gripping said strip therebetween, one of said members underlying the corresponding edge of said strip, the other of said members overlying said corresponding edge and being substantially flush with the top of said layers; said strip having an angular cross section with an upwardly pointing apex substantially at the level of the top of said layer in a relative position of said slabs in which said other of said members on one side of the slab is separated from the corresponding member on the other side of the slab by a distance substantially greater than twice the thickness of said strip whereby the latter forms two downwardly diverging flanks on opposite sides of said apex.

Claim 9

The combination defined in claim 6 wherein said one of said members is provided with a series of tapped holes and said other of said members is provided with a series of bores aligned with said holes, said clamping means further including screws with heads countersunk in said other of said members extending through said bores and matingly engaging said holes.

Claim 10

The combination defined in claim 7 further comprising spacing means interposed between said members for limiting the approach of said members toward each other upon a tightening of said screws.