EXPANSION JOINT SYSTEM OF CONCRETE SLAB ARRANGEMENT

• US 20100281808A1
• Filed: 01/20/2009
• Published: 11/11/2010
• Est. Priority Date: 01/21/2008
• Status: Active Grant

• Current Assignee: Peikko Group Oy (Paananen Family)
• Original Assignee: Peikko Group Oy (Paananen Family)
• Inventors: Davis, Trent, Laiho, Topi
• Granted Patent: US 8,516,761 B2
• Time in Patent Office: Days
• US Class Current: 52/402
• CPC Class Codes: E01C 11/08 Packing of metal E01C11/045 takes precedence
• CPC Class Codes: E01C 11/14 Dowel assembly ; Design or construction of reinforcements in the area of joints coupling devices for prefabricated units E01C5/005; combined with characteristic packings E01C11/08 - E01C11/12; removable holders E01C23/045

Abstract

The invention relates to an expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one local or continuous dowel arranged to transfer loads which are perpendicular to the slab plane. A shear reinforcement or a location for attaching the shear reinforcement has been arranged in advance in the expansion joint reinforcement.

Claims

1. An expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one local or continuous dowel arranged to transfer loads which are perpendicular to the slab plane, wherein a shear reinforcement or a location for attaching the shear reinforcement has been arranged in advance in the expansion joint reinforcement.

2. An expansion joint system of a concrete slab arrangement according to claim 1, wherein the shear reinforcement or the location for attaching the shear reinforcement is arranged in the dowel.

3. An expansion joint system of a concrete slab arrangement according to claim 1, wherein the shear reinforcement or the location for attaching the shear reinforcement is arranged in a part of the expansion joint reinforcement other than the dowel.

4. An expansion joint system of a concrete slab arrangement according to claim 2, wherein each dowel has at least one element that is arranged to form the shear reinforcement.

5. An expansion joint system of a concrete slab arrangement according to claim 2, wherein the shear reinforcement is formed by means of double-ended clenching pins.

6. An expansion joint system of a concrete slab arrangement according to claim 5, wherein the clenching pins are attached by the area between their ends to the dowel or another part of the expansion joint reinforcement.

7. An expansion joint system of a concrete slab arrangement according to claim 5, wherein the clenching pins are attached by the point of the clenched part to a part of the expansion joint reinforcement.

8. An expansion joint system of a concrete slab arrangement according to claim 2, wherein the shear reinforcement formed by means of circular elements.

9. An expansion joint system of a concrete slab arrangement according to claim 8, wherein the circular elements are attached by the area between the ends of their vertical parts to the dowel or another part of the expansion joint reinforcement.

10. An expansion joint system of a concrete slab arrangement according to claim 2, wherein the shear reinforcement is formed of substantially U-shaped elements.

11. An expansion joint system of a concrete slab arrangement according to claim 10, wherein the U-shaped elements are attached by the area between the ends of the part connecting the branches to the dowel or another part of the expansion joint reinforcement.