Load transfer plate and method of employing same

• US 10,533,292 B2
• Filed: 12/06/2017
• Issued: 01/14/2020
• Est. Priority Date: 12/20/2016
• Status: Active Grant

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Parkes, Nigel K., Connell, Robert U.
• Primary Examiner(s): Fonseca, Jessie T
• Application Number:
  US15/833,589
• Publication Number:
  US 20180171629A1
• Time in Patent Office: 769 Days
• 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
• CPC Class Codes: E01C 19/504 adapted to, or provided with, means to maintain reinforcing or load transfer elements in a required position removable supports for positioning reinforcing or load transfer elements in general E01C23/045
• CPC Class Codes: E04B 1/043 Connections specially adapted therefor
• CPC Class Codes: E04B 1/483 Shear dowels to be embedded in concrete
• CPC Class Codes: E04B 2005/324 with peripheral anchors or supports
• CPC Class Codes: E04B 5/32 Floor structures wholly cast in situ with or without form units or reinforcements

Abstract

Various embodiments of the present disclosure provide a load transfer plate including a non-symmetrically shaped body having a semi-cylindrical first portion configured to protrude into and be secured in the first cast-in-place concrete slab and a non-semi cylindrical second portion configured to protrude into a load transfer plate pocket secured in the second cast-in-place concrete.

Claims

1. An apparatus for transferring loads across a joint between a first cast-in-place concrete slab and a second cast-in-place concrete slab, the apparatus comprising:

a load transfer plate including;

a body having;

(i) a first, generally semi-cylindrical portion configured to protrude into and be secured in the first cast-in-place concrete slab;

(ii) a second, generally trapezoidal portion having a shape that is non-symmetrical relative to a shape of the first portion, and does not mirror the shape of the first portion;

(iii) a substantially planar upper surface; and

(iv) a substantially planar lower surface; and

a load transfer plate pocket securable in the second cast-in-place concrete slab, the load transfer plate pocket configured to receive the second portion,

wherein when the second portion is positioned in the load transfer plate pocket, the load transfer plate pocket and the second portion partially define a generally triangular gap adjacent to the second portion.

2. The apparatus of claim 1, wherein the first cast-in-place concrete slab is an existing cast-in-place concrete slab and the second cast-in-place concrete slab is a new cast-in-place concrete slab.

3. An apparatus for transferring loads across a joint between a first cast-in-place concrete slab and a second cast-in-place concrete slab, the apparatus comprising:

a load transfer plate pocket including;

a first inner wall that is a planar and extending in a first plane; and

a second inner wall that is planar and extends in a second plane that intersects and is transverse to the first plane;

wherein the load transfer plate pocket is securable in the second cast-in-place concrete slab; and

a load transfer plate including a body having;

(a) a semi-cylindrical first portion configured to protrude into and be secured in the first cast-in-place concrete slab;

(b) a non-semi cylindrical second portion configured to protrude into the load transfer plate pocket secured in the second cast-in-place concrete slab, wherein the second portion is connected to the first portion along a center plane, and

wherein the second portion includes an outer wall having;

a first wall configured to contact the first inner wall of the load transfer plate pocket;

a second wall configured to contact the second inner wall of the load transfer plate pocket, wherein the second wall is spaced apart from the first wall; and

a third wall connecting the first wall and the second wall;

(c) a substantially planar upper surface; and

(d) a substantially planar lower surface,

wherein when the second portion is positioned in the load transfer plate pocket, the first inner wall of the load transfer plate pocket, the second inner wall of the load transfer plate pocket, and the third wall of the load transfer plate partially define a gap, and wherein the gap has a shape different from the second portion.

4. The apparatus of claim 3, wherein the second portion has a trapezoidal shape.

5. The apparatus of claim 3, wherein the second portion has a generally trapezoidal shape.

6. The apparatus of claim 3, wherein the first cast-in-place concrete slab is an existing cast-in-place concrete slab and the second cast-in-place concrete slab is a new cast-in-place concrete slab.