AU2018100184A4 - Coverplate assembly - Google Patents
Coverplate assembly Download PDFInfo
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- AU2018100184A4 AU2018100184A4 AU2018100184A AU2018100184A AU2018100184A4 AU 2018100184 A4 AU2018100184 A4 AU 2018100184A4 AU 2018100184 A AU2018100184 A AU 2018100184A AU 2018100184 A AU2018100184 A AU 2018100184A AU 2018100184 A4 AU2018100184 A4 AU 2018100184A4
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- cover
- cap member
- concrete slabs
- concrete
- shoulder portion
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Abstract
A coverplate assembly for covering a gap between two concrete slabs, the coverplate assembly including a cap member locatable over the gap between the 5 two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete slabs, and a first cover, the first cover has a connection portion to attach the first cover to a first one of the two concrete slabs, and a shoulder portion to cover part of the cap member. 32 30 3656 50 52 - 2 4 28 > 60 \4 26 60 - Figure 2
Description
The present invention relates to a coverplate assembly. Reference will be 5 made in the specification to the use of the invention with respect to concrete slab expansion joints. The patent specification describes this use but it is by way of example only and the invention is not limited to this use.
BACKGROUND OF THE INVENTION
Large concrete slab structures require expansion joints to allow for movement of the concrete slabs relative to each other.
The expansion joints can cause problems when located in areas of vehicular or pedestrian traffic. Large gaps between concrete slabs can cause damage to tyres and wheels of vehicles and can be a trip hazard or worse for pedestrian traffic.
Some expansion joints have rubber seals located between the concrete slabs.
A problem with this is that the rubber seals can be damaged by traffic passing over them.
In some instances, metal coverplates are used to deal with movement between concrete slabs. The metal coverplates typically have one member attached to one concrete slab which overhangs another member attached to another concrete slab.
A problem with existing coverplates is that they are required to be quite large to allow for the movement of the concrete slabs. Additionally, the overhanging portions must be strong enough to support the traffic that crosses the coverplates.
Furthermore, the relative vertical movement of the concrete slabs can bend or otherwise damage the metal coverplates.
OBJECT OF THE INVENTION
It is an object of the present invention to overcome or at least alleviate one or 30 more of the above mentioned problems with coverplate assemblies and/or provide the consumer with a useful or commercial choice.
2018100184 09 Feb 2018
SUMMARY OF THE INVENTION
In one aspect, the present invention broadly resides in a coverplate assembly for covering a gap between two concrete slabs, the coverplate assembly including a cap member locatable over the gap between the two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete slabs; and a first cover, the first cover has a connection portion to attach the first cover to a first one of the two concrete slabs, and a shoulder portion to cover part of the cap member.
In use, the cap member preferably supports the shoulder portion of the first cover. The cap member is preferably locatable over at least a portion of at least one of the two concrete slabs. More preferably the cap member is locatable over at least a portion of each of the two concrete slabs. In use, the cap member is preferably held in position over the gap between the two concrete slabs by the shoulder portion of the first cover. In one embodiment, the cap member is glued to at least one of the two concrete slabs.
The cap member is preferably made from a flexible material. The cap member is preferably made of rubber. More preferably the cap member is made of EPDM rubber. In one embodiment, the cap member is made of foamed rubber. The cap member preferably has a rectangular cross section. The cap member preferably has a height that is substantially the same as the height difference between a part of the connection portion of the first cover that abuts the first one of the two concrete slabs and a part of the shoulder portion that abuts the cap member.
The first cover preferably has a plurality of apertures located in the connection portion to attach the first cover to the first one of the two concrete slabs using fasteners. The fasteners are preferably concrete screws. In another embodiment, the first cover is glued to the first of the two concrete slabs. The first cover preferably has a ramped portion to ease the transition between the first one of the two concrete slabs and the first cover.
The first cover is preferably made of metal. The first cover is preferably made of aluminium. The first cover is preferably made of extruded aluminium. More preferably the first cover is made of anodised aluminium. In another embodiment, the first cover is made of plastic. In a further embodiment, the first cover is made of steel. More preferably the first cover is made of stainless steel.
2018100184 09 Feb 2018
- 3 In use, the shoulder portion of the first cover preferably abuts the cap member to provide additional support to the shoulder portion.
The first cover preferably includes ridges on an upper surface to provide grip. The ridges are preferably knurled to provide extra grip.
In one embodiment, the coverplate assembly includes a second cover, the second cover has a connection portion to attach the second cover to a second one of the two concrete slabs, and a shoulder portion to cover part of the cap member. The second cover preferably has a plurality of apertures located in the connection portion to attach the second cover to the second one of the two concrete slabs using 0 fasteners. The fasteners are preferably concrete screws. In another embodiment, the second cover is glued to the second of the two concrete slabs. The second cover preferably has a ramped portion to ease the transition between the second one of the two concrete slabs and the second cover.
The second cover is preferably made of metal. The second cover is 5 preferably made of aluminium. The second cover is preferably made of extruded aluminium. More preferably the second cover is made of anodised aluminium. In another embodiment, the second cover is made of plastic. In a further embodiment, the second cover is made of steel. More preferably the second cover is made of stainless steel. In use, the shoulder portion of the second cover preferably abuts the 0 cap member to provide additional support to the shoulder portion.
The second cover preferably includes ridges on an upper surface to provide grip. The ridges are preferably knurled to provide extra grip.
The second cover is preferably spaced from the first cover in use. The second cover preferably does not overlap with the first cover in use.
The cap member is preferably held in position over the gap between the two concrete slabs by the shoulder portion of the first cover and the shoulder portion of the second cover in use.
Preferably there is an elongate seal locatabie between the two concrete slabs. In one embodiment, the elongate seal is part of the coverplate assembly In use, the elongate seal is located beneath the cap member. The elongate seal is preferably attached to both of the two concrete slabs. The elongate seal is preferably glued to both of the two concrete slabs. The elongate seal preferably has one or more groves located on opposed sides. The one or more grooves preferably retain glue to glue the elongate seal to the two concrete slabs. The elongate seal is preferably
-42018100184 09 Feb 2018 located flush with the top surface of the first one of the two concrete slabs. More preferably, the elongate seal is located flush with the top surface of the two concrete slabs.
The elongate seal is preferably made from a flexible material. The elongate 5 seal is preferably made of crosslinked polyolefin. Alternatively the elongate seal is made of EVA foam. In one embodiment the elongate seal is made of rubber. More preferably the elongate seal is made of EPDM rubber. In one embodiment, the elongate seal is made of foamed rubber. In another embodiment, the elongate seal is made from polyurethane or polypropylene The elongate seal preferably has a 0 substantially rectangular cross section. The elongate seal is preferably adapted to compress and expand to accommodate movement of the two concrete slabs.
Preferably the elongate seal is not attached to the cap member. In another embodiment, the elongate seal is attached to the cap member. In a further embodiment the elongate seal and the cap member form one part.
In one embodiment the coverplate assembly includes a holding member locatable under at least a portion of the cap member. The holding member is preferably attached to a second one of the two concrete slabs. In use, the holding member is preferably partially located under the cap member. The holding member preferably has an L-shaped cross section. The holding member is preferably attached to the second one of the two concrete slabs at a level above a top surface of the first of the two concrete slabs. The holding member is preferably partially located between the cap member and the elongate seal. The holding member is preferably used when the second of the two concrete slabs is substantially raised or angled at substantially 90 degrees relative to the first of the two concrete slabs. In 25 one embodiment, the holding member is attached to the cap member. Preferably the holding member is attached to the elongate seal.
The holding member preferably has a plurality of apertures to attach the holding member to the second one of the two concrete slabs using fasteners. The fasteners are preferably concrete screws. In another embodiment, the holding 30 member is glued to the second of the two concrete slabs.
The holding member is preferably made of metal. The holding member is preferably made of aluminium. More preferably the holding member is made of anodised aluminium. In another embodiment, the holding member is made of
-52018100184 09 Feb 2018 plastic. In a further embodiment, the holding member is made of steel. More preferably the holding member is made of stainless steel.
The holding member is preferably spaced from the first cover. The holding member preferably does not overlap with the first cover.
In one embodiment, in use, the first cover is attached to a recessed portion of the first of the two concrete slabs. Preferably the recessed portion is substantially the same depth as the height of the first cover. Preferably the second cover is attached to a recessed portion of the second of the two concrete slabs. Preferably the recessed portion of the second of the two concrete slabs is substantially the 0 same depth as the height of the second cover.
In one embodiment, the gap between the two concrete slabs is between 20mm and 200mm.
In another aspect, the present invention broadly resides in a coverplate assembly for covering a gap between two concrete slabs, the coverplate assembly including a cap member iocatable over the gap between the two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete slabs;
a first cover, the first cover has a connection portion to attach the first cover to 0 a first one of the two concrete slabs, and a shoulder portion to cover part of the cap member; and a second cover, the second cover has a connection portion to attach the second cover to a second one of the two concrete slabs, and a shoulder portion to cover part of the cap member.
Preferably in use the first cover and the second cover are spaced from one another. Preferably in use, the shoulder portions of the first cover and the second cover are supported by the cap member.
In a further aspect, the present invention broadly resides in a method of covering a gap between two concrete slabs, including the steps of locating a cap member over the gap between the two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete slabs; and attaching a first cover to a first one of the two concrete slabs such that a shoulder portion of the first cover covers part of the cap member.
-62018100184 09 Feb 2018
Preferably the method further includes the step of attaching a second cover to a second one of the two concrete slabs such that a shoulder portion of the second cover covers part of the cap member.
Preferably the method further includes the step of positioning an elongate seal 5 between the two concrete slabs.
Preferably the step of locating a cap member over the gap between the two concrete slabs includes locating the cap member over the elongate seal.
Preferably the method further includes the step of retaining the cap member over the gap between the two concrete slabs using the shoulder portion of the first 0 cover and the shoulder portion of the second cover.
Preferably the step of locating a cap member over the gap between the two concrete slabs includes locating the cap member over at least a portion of at least one of the two concrete slabs. Preferably the step of locating the cap member over at least a portion of at least one of the two concrete slabs includes locating the cap 5 member over at least a portion of the other of the of the two concrete slabs.
In another aspect, the present invention broadly resides in a method of covering a gap between two concrete slabs, including the steps of locating a cap member over the gap between the two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete 0 slabs;
attaching a first cover to a first one of the two concrete slabs such that a shoulder portion of the first cover covers part of the cap member; and attaching a second cover to a second one of the two concrete slabs such that a shoulder portion of the second cover covers part of the cap member.
Preferably the step of locating a cap member over the gap between the two concrete slabs includes locating the cap member over at least a portion of the first one of the two concrete slabs and over at least a portion of the second one of the of the two concrete slabs.
The features described with respect to one aspect also apply where applicable to all other aspects of the invention. Furthermore, different combinations of described features are herein described and claimed even when not expressly stated.
2018100184 09 Feb 2018
-Ί BRIEF DESCRIPTION OF THE DRAWINGS In order that the present invention can be more readily understood reference will now be made to the accompanying drawings which illustrate a preferred embodiment of the invention and wherein:
Figure 1 is a sectioned perspective view of a coverplate assembiy according to an embodiment of the present invention;
Figure 2 is a sectioned view of the coverplate assembly of Figure 1;
Figure 3 is a sectioned view of a coverplate assembly according to another embodiment of the present invention;
Figure 4 is a sectioned view of a coverplate assembly according to a further embodiment of the present invention; and
Figure 5 is a sectioned view of the coverplate assembly of Figure 1 in use.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to Figures 1 and 2, there is shown a coverplate assembly 10 according to an embodiment of the present invention. The coverplate assembly 10 cover a gap 12 between two concrete slabs, a first concrete slab 14 and a second concrete slab 16.
The coverplate assembly 10 has a cap member 20, which is located over the gap 12 between the two concrete slabs 14,16, and over portions of the two concrete slabs 14,16. The cap member 20 is made of flexible EPDM rubber to accommodate for movement between the concrete slabs 14,16. The cap member 20 has a rectangular cross section.
The coverplate assembly 10 has a first cover 22. The first cover 22 has a connection portion 24. The connection portion 24 is attached to the first concrete slab 14 by concrete screws 26 (only one shown). The first cover 22 has a plurality of apertures 28 (only one shown) spaced along its length. The concrete screws 26 are located in the apertures 28 and screwed into the first concrete slab 14.
The first cover 22 has a shoulder portion 30, which covers a part of the cap member 20. The shoulder portion 30 provides protection to the cap member 20 from traffic that passes over it. The shoulder portion 30 is supported by the cap member and can move relative to the cap member 20.
The first cover 22 has a ramped portion 32 to ease the transition between the first concrete slab 14 and the first cover 22. The first cover 22 is made of anodised
2018100184 09 Feb 2018
- 8 aiuminium. The first cover 22 has ridges 34 to provide additional grip. The shoulder portion 30 has a ramped portion 36 to ease the transition between the first cover 22 and the cap member 20.
The coverplate assembly 10 has a second cover 42. The second cover 42 has a connection portion 44. The connection portion 44 is attached to the second concrete slab 16 by concrete screws 46 (only one shown). The second cover 42 has a plurality of apertures 48 (only one shown) spaced along its length. The concrete screws 46 are located in the apertures 48 and screwed into the second concrete slab 16.
The second cover 42 has a shoulder portion 50, which covers a part of the cap member 20. The shoulder portion 50 provides protection to the cap member 20 from traffic that passes over it. The shoulder portion 50 is supported by the cap member 20 and can move relative to the cap member 20.
The second cover 42 has a ramped portion 52 to ease the transition between the second concrete slab 16 and the second cover 42. The second cover 42 is made of anodised aiuminium. The second cover 42 has ridges 54 to provide additional grip. The shoulder portion 50 has a ramped portion 56 to ease the transition between the second cover 42 and the cap member 20.
The cap member 20 is retained by shoulder portions 30 and 50 of the first cover 22 and the second cover 42. The cap member 20 has a thickness which is substantially the same as the distance between the first concrete slab 14 and the shoulder portion 30, and the second concrete slab 16 and the shoulder portion 50.
The coverplate assembly 10 has an elongate seal 58 located between the two concrete slabs 14,16. The elongate seal 58 is located below the cap member 20. 25 The elongate seal is glued to the two concrete slabs 14,16. The elongate seal 58 has grooves 60 to retain glue when being glued to the two concrete slabs 14,16.
With reference to Figure 3, there is shown a coverplate assembly 110. The coverplate assembly 110 is similar to the coverplate assembly 10 shown in Figures 1 and 2, similar numbering has been used with the addition of a prefix of 1 (for 30 example, cap member 120 is similar to cap member 20 in Figures 1 and 2).
The main difference between coverplate assembly 110 and coverplate assembly 10 in figures 1 and 2 is that the first cover 122 and the second cover 142 do not have ramped portions (32 and 52 as seen in figures 1 and 2). Additionally, the first cover 122 is located in recess 115 of concrete slab 114. The depth of
-92018100184 09 Feb 2018 recess 115 is substantially the same as the height of the first cover 122. Similarly, the second cover 142 is located in recess 117 of concrete slab 116. The depth of recess 117 is substantially the same as the height of the second cover 142.
With reference to Figure 4, there is shown a coverplate assembly 210. 5 Coverplate assembly 210 is used to cover a gap 212 between a horizontal first concrete slab 214 and a vertical second concrete slab 216.
The coverplate assembly 210 has a cap member 220, which is located over the gap 212 between the two concrete slabs 214,216, and over a portion of the first concrete slab 214. The cap member 220 is made of flexible EPDM rubber to 0 accommodate for movement between the concrete slabs 214,216. The cap member 220 has a rectangular cross section.
The coverplate assembly 210 has a first cover 222. The first cover 222 has a connection portion 224. The connection portion 224 is attached to the first concrete slab 214 by concrete screws 226 (only one shown). The first cover 222 has a plurality of apertures 228 (only one shown) spaced along its length. The concrete screws 226 are located in the apertures 228 and secured into the first concrete slab 214.
The first cover 222 has a shoulder portion 230, which covers a part of the cap member 220. The shoulder portion 230 provides protection to the cap member 220.
The shoulder portion 230 is supported by the cap member 220 and can move relative to the cap member 220.
The first cover 222 has a ramped portion 232 to ease the transition between the first concrete slab 214 and the first cover 222. The first cover 222 is made of anodised aluminium. The first cover 222 has ridges 234 to provide additional grip.
The shoulder portion 230 has a ramped portion 236 to ease the transition between the first cover 222 and the cap member 220.
The coverplate assembly 210 has a holding member 240. The holding member 240 is attached to the second concrete slab by concrete bolts 246 (only one shown). The holding member 240 has a plurality of apertures 248 (only one shown) spaced along its length. The concrete bolts 246 are located in the apertures 248 and secured into the second concrete slab 216. A portion of the holding member 240 is located underneath the cap member 220. The holding member 240 is attached to the cap member 220. The holding member 240 has an L-shaped cross section. The holding member 240 is located above an elongate seal 258.
- 102018100184 09 Feb 2018
Figure 5 shows the coverplate assembly 10 of figure 1 and 2 in use. As can be seen in the figure, the cap member 20 is flexible and accommodates movement of the first concrete slab 14 relative to the second concrete slab 16. The cap member 20 is movably held in place by shoulder portions 30 and 50 of the first cover 5 22 and the second cover 42. The cap member 20 protects the elongate seal 58 from traffic passing over the coverplate assembly 10.
ADVANTAGES
An advantage of the preferred embodiment of the coverplate assembly 0 includes the shoulder portions being supported by the cap member when a vehicle passes over the coverplate assembly. Another advantage of the preferred embodiment of the coverplate assembly includes protecting the elongate seal between the concrete slabs. A further advantage of the preferred embodiment of the coverplate assembly includes the ability to accommodate horizontal and vertical 5 movement of the concrete slabs. Another advantage of the preferred embodiment of the coverplate assembly includes that the concrete screws resist loosening with traffic passing over the coverplate assembly.
VARIATIONS
While the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth.
Throughout the description and claims of this specification the word “comprise” and variations of that word such as “comprises” and “comprising”, are not intended to exclude other additives, components, integers or steps.
- 11 2018100184 09 Feb 2018
Claims (5)
- CLAIMS:1. A coverplate assembly for covering a gap between two concrete slabs, the coverplate assembly including5 a cap member locatable over the gap between the two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete slabs; and a first cover, the first cover has a connection portion to attach the first cover to a first one of the two concrete slabs, and a shoulder portion to cover part of the cap 0 member.
- 2. A coverplate assembly as claimed in claim 1, further including a second cover, the second cover having a connection portion to attach the second cover to a second one of the two concrete slabs, and a shoulder portion to cover part of the cap5 member.
- 3. A coverplate assembly as claimed in claim 1, further including a holding member locatable under at least a portion of the cap member and attachable to a second one of the two concrete slabs.:0
- 4. A method of covering a gap between two concrete slabs, including the steps of locating a cap member over the gap between the two concrete slabs, the cap member is flexible to bend with the relative vertical movement of the two concrete25 slabs; and attaching a first cover to a first one of the two concrete slabs such that a shoulder portion of the first cover covers part of the cap member.
- 5. A method as claimed in claim 4, further including the step of attaching a 30 second cover to a second one of the two concrete slabs such that a shoulder portion of the second cover covers part of the cap member.1/52018100184 09 Feb 2018Figure 12/52018100184 09 Feb 2018 z SO .\l / \ >____j_ 2 ^20 48^8 ^\ t>Δ t>Figure 23/52018100184 09 Feb 2018Figure 34/52018100184 09 Feb 2018Figure 45/52018100184 09 Feb 2018Figure 5
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2018100184A AU2018100184A4 (en) | 2018-02-09 | 2018-02-09 | Coverplate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2018100184A AU2018100184A4 (en) | 2018-02-09 | 2018-02-09 | Coverplate assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2018100184A4 true AU2018100184A4 (en) | 2018-03-15 |
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ID=61568934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2018100184A Active AU2018100184A4 (en) | 2018-02-09 | 2018-02-09 | Coverplate assembly |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2018100184A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106842A (en) * | 2021-03-24 | 2021-07-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Trestle expansion joint structure |
-
2018
- 2018-02-09 AU AU2018100184A patent/AU2018100184A4/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113106842A (en) * | 2021-03-24 | 2021-07-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Trestle expansion joint structure |
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| FGI | Letters patent sealed or granted (innovation patent) |