Expansion joint seal with load transfer and flexion

Patent metadata

Field	Value
Publication number	US-10213962-B2
Application number	US-201816012457-A
Country	US
Kind code	B2
Filing date	Jun 19, 2018
Priority date	Dec 30, 2015
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

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, comprising:
an elongated core,
the elongated core composed of a resiliently compressible material,
the elongated core having an elongated core longitudinal axis,
the elongated core having an elongated core top,
the elongated core top having an elongated core lateral width at the elongated core top and an elongated core bottom width at an elongated core bottom of the elongated core,
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 second side being generally perpendicular to the elongated core top, and
an open shaft provided into the elongated core from an elongated core first end, the open shaft parallel to the elongated core longitudinal axis;

a longitudinal load-transfer member,
the longitudinal load-transfer member being incompressible,
the 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 longitudinal load-transfer member positioned at least partly into the open shaft,
the longitudinal load-transfer member protruding from the elongated core

wherein the expansion joint system further comprises:
an elongated beveled surface adjacent the elongated core bottom and the elongated core first side, and the elongated core lateral width is greater than the elongated core bottom width, and
a second open shaft provided into the elongated core from an elongated core first end, the second open shaft parallel to the elongated core longitudinal axis and a third open shaft provided into the elongated core from an elongated core first end, the third open shaft parallel to the elongated core longitudinal axis.

2. The expansion joint system of claim 1 further comprising:
an elongated core channel in the elongated core at the elongated core bottom.

3. The expansion joint system of claim 1 further comprising
a second open shaft provided into the elongated core from an elongated core first end, the second open shaft parallel to the elongated core longitudinal axis,
a second longitudinal load-transfer member positioned at least partly into the second open shaft,
a third open shaft provided into the elongated core from an elongated core first end, the third open shaft parallel to the elongated core longitudinal axis, and
a third longitudinal load-transfer member positioned at least partly into the third open shaft.

4. The expansion joint system of claim 3 further comprising a fourth open shaft provided into the elongated core from an elongated core first end, the fourth open shaft parallel to the elongated core longitudinal axis and a fourth open shaft provided into the elongated core from an elongated core first end, the fourth open shaft parallel to the elongated core longitudinal axis.

5. The expansion joint system of claim 4 wherein the longitudinal load-transfer member has a longitudinal load-transfer member length equivalent to an elongated core length, and wherein the second longitudinal load-transfer member has a second longitudinal load-transfer member length equivalent to the elongated core length, and wherein the third longitudinal load-transfer member has a fourth longitudinal load-transfer member length equivalent to the elongated core length.

6. The expansion joint system of claim 5 , wherein the joint seal is adapted to be cycled one of 500 times at 1 cycle per minute, 500 times at 10 cycles per minute and 100 cycles at 30 times per minute, without indication of stress, deformation or fatigue.

7. The expansion joint system of claim 5 , wherein the body of compressible foam having a maximum joint width of more than six (6) inches and a bottom surface temperature of a bottom of the body of compressible foam increases no more than 139° C. after sixty minutes when the joint seal is exposed to heating according to the equation T=20+345*LOG(8*t+1), where t is time in minutes and T is temperature in C.

8. The expansion joint system of claim 5 , wherein a bottom surface temperature of a bottom of the body of compressible foam at a maximum joint width increases no more than 181° C. after sixty minutes when the joint seal is exposed to heating according to the equation T=20+345*LOG(8*t+1), where t is time in minutes and T is temperature in C.

9. The expansion joint system of claim 1 further comprising:
an elongated core channel in the elongated core at the elongated core bottom.

10. The expansion joint system of claim 1 , wherein the joint seal is adapted to be cycled one of 500 times at 1 cycle per minute, 500 times at 10 cycles per minute and 100 cycles at 30 times per minute, without indication of stress, deformation or fatigue.

11. The expansion joint system of claim 1 , wherein the body of compressible foam having a maximum joint width of more than six (6) inches and a bottom surface temperature of a bottom of the body of compressible foam increases no more than 139° C. after sixty minutes when the joint seal is exposed to heating according to the equation T=20+345*LOG(8*t+1), where t is time in minutes and T is temperature in C.

12. The expansion joint system of claim 1 , wherein a bottom surface temperature of a bottom of the body of compressible foam at a maximum joint width increases no more than 181° C. after sixty minutes when the joint seal is exposed to heating according to the equation T=20+345*LOG(8*t+1), where t is time in minutes and T is temperature in C.

Assignees

• Schul International Co Llc

Inventors

• Robinson Steven R

Classifications

• E04B1/6812 Primary

  Compressable seals of solid form · CPC title

• E01C23/028

  Positioning or producing markings, e.g. by forcing marking materials into the surface, by scoring · CPC title

• 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

• E04B1/62

  Insulation or other protection; Elements or use of specified material therefor (chemical compositions C01 - C11; implements for applying insulation or sealings E04F21/00; buildings to withstand, or to provide protection against, external undesired influences E04H9/00; sealing pipes in walls or partitions F16L5/02; shielding against dangerous radiation G21F) · CPC title

• E01C23/026

  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