Joint edge assembly and method for forming joint in offset position

Patent metadata

Field	Value
Publication number	US-2019017266-A1
Application number	US-201816131610-A
Country	US
Kind code	A1
Filing date	Sep 14, 2018
Priority date	Oct 5, 2015
Publication date	Jan 17, 2019
Grant date	—

Abstract

Various embodiments of the present disclosure provide a joint edge assembly and method of positioning and installing joint edge assembly for adjacent concrete slabs. The method includes positioning the joint edge assembly in an offset position from the joint. The method of various embodiments also includes using a plurality of height adjusters or plates fixed to the slab engagement surface of the one of the joint edge members to adjust or assist in adjusting the height of the joint edge assembly relative to the formwork and relative to the plane of the top surfaces of the concrete slabs.

First claim

The invention is claimed as follows:

1 . A concrete slab joint assembly for forming a joint between a first concrete slab and a second concrete slab, said joint edge assembly comprising:
a first elongated joint edge member; a plurality of first anchors integrally connected to extending outwardly and downwardly from the first elongated joint edge member and configured to extend into the first concrete slab; a plurality of height adjusters fixedly attached to the first elongated joint edge member at spaced apart positions; a second elongated joint edge member; and a plurality of second anchors integrally connected to extending outwardly and downwardly from the second elongated joint edge member and configured to extend into the second concrete slab.

2 . The concrete slab joint assembly of claim 1 , wherein the first elongated joint edge member, the plurality of first anchors, the plurality of height adjusters, the second elongated joint edge member, and the plurality of second anchors are configured such that:
(i) a slab engagement surface of the first joint edge member will extend in a first vertical or substantially vertical plane directly adjacent to a vertically extending plane in which a vertically extending side or end surface of the first concrete slab will lie such that the slab engagement surface of the first joint edge member will be adjacent to the vertically extending side or end surface of the first concrete slab after the first concrete slab is poured, (ii) the slab engagement surface of the first joint edge member will extend in the first vertical or substantially vertical plane outward relative to any vertically extending plane in which any vertically extending side or end surface of the first concrete slab will lie after the first concrete slab is poured, (iii) a second slab facing side of the first joint edge member will extend in a second vertical or substantially vertical plane inwardly relative to a vertical or substantially vertical plane of the second concrete slab in which a vertically extending side or end surface of the second concrete slab will lie after the second concrete slab is poured; (iv) a first slab facing side of the second joint edge member will extend in a third vertical or substantially vertical plane further inwardly relative to the vertical or substantially vertical plane of the second concrete slab in which the vertically extending side or end surface of the second concrete slab will lie after the second concrete slab is poured, and (v) a slab engagement surface of the second joint edge member will extend in a fourth vertical or substantially vertical plane even further inwardly relative to the vertical or substantially vertical plane of the second concrete slab in which the vertically extending side or end surface of the second concrete slab will lie after the second concrete slab is poured.

3 . The concrete slab joint assembly of claim 1 , which includes a plurality of connectors connecting the first and second elongated joint edge members along their lengths.

4 . The concrete slab joint assembly of claim 1 , wherein one of the height adjusters defines a variable opening and a non-variable opening.

5 . The concrete slab joint assembly of claim 4 , wherein the variable fastener opening is oval and the non-variable fastener opening is circular.

6 . The concrete slab joint assembly of claim 1 , wherein each of a plurality of the height adjusters defines a variable opening and a non-variable opening.

7 . The concrete slab joint assembly of claim 6 , wherein the variable fastener openings are oval and the non-variable fastener openings are circular.

8 . The concrete slab joint assembly of claim 6 , wherein the height adjusters are configured to enable: (a) positioning first formwork fasteners through the variable openings in the height adjusters and into the formwork below the first and second joint edge members, (b) setting a height of the first and second joint edge members relative to the formwork below the first and second joint edge members, and (c) positioning second formwork fasteners through the non-variable openings in the height adjusters and into the formwork below the first and second joint edge members to fix the height of the first and second joint edge members relative to the formwork below the first and second joint edge members.

9 . The concrete slab joint assembly of claim 1 , which includes a plurality of dowel pockets attached to the plurality of height adjustors.

10 . The concrete slab joint assembly of claim 1 , which includes a horizontally or substantially horizontally extending metal plate fixed to the first elongated joint edge member.

11 . The concrete slab joint assembly of claim 1 , wherein the first elongated joint edge member includes an elongated body having an upper edge, a lower edge, a slab engagement side, a joint member engagement side, a first end edge, and a second end edge.

12 . The concrete slab joint assembly of claim 11 , wherein the plurality of height adjusters are integrally fixed to the slab engagement surface of the first joint edge member.

13 . The concrete slab joint assembly of claim 12 , wherein the first joint member is steel, the plurality of height adjusters are steel, and the plurality of height adjusters are welded at spaced apart locations to the slab engagement side surface of the elongated joint edge member.

14 . The concrete slab joint assembly of claim 12 , wherein each height adjuster includes a body having a slab facing side, a joint edge member facing side that is fixed to the slab engagement side of the first joint member, a top edge, a bottom edge, a first side edge, and a second side edge.

15 . A concrete slab joint assembly for forming a joint between a first concrete slab and a second concrete slab, said joint edge assembly comprising:
a first elongated joint edge member including an elongated body having an upper edge, a lower edge, a slab engagement side, a joint member engagement side, a first end edge, and a second end edge; a plurality of first anchors integrally connected to extending outwardly and downwardly from the slab engagement side of the first elongated joint edge member and configured to extend into the first concrete slab; a plurality of height adjusters fixedly attached to the slab engagement side of the first elongated joint edge member at spaced apart positions, each of the plurality of the height adjusters defining an oval variable opening and a circular non-variable opening; a horizontally or substantially horizontally extending plate fixed to the lower edge of the first elongated joint edge member; a second elongated joint edge member; a plurality of second anchors integrally connected to extending outwardly and downwardly from the second elongated joint edge member and configured to extend into the second concrete slab; and a plurality of connectors connecting the first and second elongated joint edge members along their lengths.

16 . The concrete slab joint assembly of claim 15 , wherein the first elongated joint edge member, the plurality of first anchors, the plurality of height adjusters, the plate, the second elongated joint edge member, the plurality of second anchors, and the plurality of connectors are configured such that:
(i) a slab engagement surface of the first joint edge member will extend in a first vertical or substantially vertical plane directly adjacent to a vertically extending plane in which a vertically extending side or end surface of the first concrete slab will lie such that the slab engagement surface of

Assignees

• Illinois Tool Works

Inventors

• Parkes Nigel K
• Connell Robert Urquhart

Classifications

• E04B5/32 Primary

  Floor structures wholly cast in situ with or without form units or reinforcements · CPC title

• E04B2005/324

  with peripheral anchors or supports · CPC title

• E04B1/483

  Shear dowels to be embedded in concrete · CPC title

• E04F15/142

  Dividing strips or boundary strips · CPC title

• E04B2005/322

  with permanent forms for the floor edges · CPC title