Expansion Joint for Longitudinal Load Transfer

Patent metadata

Field	Value
Publication number	US-2017191256-A1
Application number	US-201615046924-A
Country	US
Kind code	A1
Filing date	Feb 18, 2016
Priority date	Dec 30, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

An expansion joint design for supporting transfer loads. The system includes an elongated core and at least one longitudinal load-transfer member which are bonded together.

First claim

I claim:

1 . An expansion joint system for imposition under compression between a first substrate and a second substrate, the first substrate and the second substrate being substantially co-planar with a first plane, the first substrate being distant the second substrate by a first distance, comprising:
an elongated core, the elongated core composed of a resiliently compressible foam; the elongated core having an elongated core longitudinal axis, the elongated core having an elongated core longitudinal length, the elongated core having an elongated core top, the elongated core having an elongated core bottom, the elongated core having an elongated core height intermediate the elongated core top and the elongated core bottom, the elongated core having an elongated core first side, the elongated core first side being generally perpendicular to the elongated core top, the elongated core having an elongated core second side; the elongated core side being generally perpendicular he elongated core top; the elongated core having an elongated core lateral width, the elongated core lateral width configured to be greater than the first distance prior to imposition, and at least one longitudinal load-transfer member, the at least one longitudinal load-transfer member being incompressible; the at least one longitudinal load-transfer member having a longitudinal load-transfer member axis, the elongated core longitudinal axis and the longitudinal load-transfer member axis being parallel, the at least one longitudinal load-transfer member having longitudinal load-transfer member length, the elongated core longitudinal length and longitudinal load-transfer member length being equivalent, the at least one longitudinal load-transfer member bonded to the elongated foam core at the elongated core top, the at least one longitudinal load-transfer member having a longitudinal load-transfer member lateral width, wherein the longitudinal load-transfer member lateral width is not more than one-fourth the first distance.

2 . The expansion joint system of claim 1 , wherein the at least one longitudinal load-transfer member is rigid in a plane perpendicular to the first plane and perpendicular to the elongated core longitudinal axis.

3 . The expansion joint system of claim 1 , wherein the at least one longitudinal load-transfer member is flexible in a plane perpendicular to the first plane and perpendicular to the elongated core longitudinal axis.

4 . The expansion joint system of claim 1 , further comprising at least six of the at least one longitudinal load-transfer member.

5 . The expansion joint system of claim 1 , wherein
the elongated core includes an elongated core p slot in the elongated core top, and wherein the at least one longitudinal load-transfer member is positioned in the elongated core top slot.

6 . The expansion joint system of claim 2 , wherein the at least one longitudinal load-transfer member is rigid in a plane parallel to the first plane.

7 . The expansion joint system of claim 3 , wherein the at least one longitudinal load-transfer member is rigid in a plane parallel to the first plane.

8 . The expansion joint system of claim 1 wherein the elongated core comprises a plurality of members laminated together.

9 . An expansion joint system for imposition under compression between a first substrate and a second substrate, the first substrate and the second substrate being substantially co-planar with a first plane, the first substrate being distant the second substrate by a first distance, comprising:
an elongated core, the elongated core corn nosed of a resiliently pressible foam, the elongated core having an elongated core longitudinal axis, the elongated core having an elongated core longitudinal length, the elongated core having an elongated core top, the elongated core having an elongated core bottom, the elongated core having an elongated core height intermediate the elongated core top and the elongated core bottom, the elongated core having an elongated core first side, the elongated core first side being generally perpendicular the elongated core top, the elongated core having an elongated core second side; the elongated core second side being generally perpendicular to the elongated core top; the elongated core having an elongated core lateral width, the elongated core lateral width configured to be greater than the first distance prior to imposition; and at least one longitudinal load-transfer member, the at least one load-transfer member being incompressible, the at least one longitudinal load-transfer member having a longitudinal load-transfer member axis, the elongated core longitudinal axis and the longitudinal load-transfer member axis being parallel, the at least one longitudinal load-transfer member having longitudinal load-transfer member length, the elongated core longitudinal length and longitudinal load-transfer member length being equivalent, the at least one longitudinal load-transfer member bonded to the elongated foam core at the elongated core top, the at least one longitudinal load-transfer member having a longitudinal load-transfer member lateral width, wherein the longitudinal load-transfer member lateral width is not more than one-fourth the first distance; and at least one support member, the at least one support member having a support member top, a support member thickness, a first support member side, a second support member side, and a support member height, the at least one support member top adjacent the at least one longitudinal load-transfer member, the support member thickness equivalent to the longitudinal load-transfer member lateral width the support member height at least one half the elongated core height, and the first support member side contacting the elongated core and the second support member side contacting the elongated core.

10 . The expansion joint system of claim 1 further comprising:
an elastomeric coating adhered to the elongated core across the elongated core top and atop the longitudinal load-transfer member

11 . The expansion joint system of claim 9 further comprising:
the support member top abutting the longitudinal load-transfer member.

12 . The expansion joint system of claim 9 further comprising:
the support member top joined to the longitudinal load-transfer member.

13 . The expansion joint system of claim 9 further comprising:
a graphite-based fire retardant material intermediate the at least one longitudinal load-transfer member and the at least one support member.

14 . The expansion joint system of claim 1 further comprising:
a first intumescent member, the first intumescent member having a first intumescent member first outer surface, a first intumescent member second outer surface, and a first intumescent member length, the first intumescent member adhered to the elongated core at the first intumescent member second outer surface the first intumescent member length equivalent to the elongated core longitudinal length.

15 . The expansion joint system of claim 1 further comprising:
a first body channel in the elongated core in the elongated core first side along the elongated core longitudinal length, and a first intumescent member, the first intumescent member having a first intumescent member first outer surface, a first tumescent member second outer surface, and a first tumescent member length, the firs intumescent member adhered to the elongated core at the first intumescent member second outer surface in the first body channel, t

Assignees

• Schul International Co Llc

Inventors

• Robinson Steven R

Classifications

• E01D19/06

  Arrangement, construction or bridging of expansion joints ({E01D19/005 takes precedence; in movable bridges E01D15/005 - E01D15/10}; sealing joints not restricted to expansion joints for bridges E04B1/68) · CPC title

• E01C23/026 Primary

  Introducing preformed inserts into or filling grooves or like channels in laid paving, with or without concurrent making or working of groove or channel, e.g. filling groove with semi-plastic material (E01C23/028 takes precedence) · CPC title

• E04B1/6801 Primary

  Fillings therefor · CPC title

• E04F15/02016

  with sealing elements between flooring elements (sealings of joints between building constructions in general E04B1/68) · CPC title

• E04B1/6815

  Expansion elements specially adapted for wall or ceiling parts · CPC title