NZ790184A - An edge protection system – joint orientation marker - Google Patents
An edge protection system – joint orientation markerInfo
- Publication number
- NZ790184A NZ790184A NZ790184A NZ79018422A NZ790184A NZ 790184 A NZ790184 A NZ 790184A NZ 790184 A NZ790184 A NZ 790184A NZ 79018422 A NZ79018422 A NZ 79018422A NZ 790184 A NZ790184 A NZ 790184A
- Authority
- NZ
- New Zealand
- Prior art keywords
- joint
- intersection
- armoured
- plate
- edge
- Prior art date
Links
Abstract
edge protection system including a first expandable armoured joint to protect a first joint extending in a first direction, a second expandable armoured joint to protect a second joint extending in a second direction and an intersection module at an intersection of the first expandable armoured joint and the second expandable armoured joint, wherein the intersection module has an indicator to enable a user to ensure correct orientation of the intersection module. oint and the second expandable armoured joint, wherein the intersection module has an indicator to enable a user to ensure correct orientation of the intersection module.
Description
An edge protection system including a first expandable armoured joint to protect a first joint
ing in a first direction, a second expandable armoured joint to protect a second joint
extending in a second direction and an intersection module at an intersection of the first
expandable armoured joint and the second expandable armoured joint, n the intersection
module has an indicator to enable a user to ensure correct orientation of the intersection module.
NZ 790184
AN EDGE PROTECTION SYSTEM – JOINT ORIENTATION MARKER
FIELD OF THE INVENTION
The invention relates broadly to an edge protection system, or an armoured joint, for
protecting the edges of components formed of settable material such as concrete. The
components formed of settable material may be in the form of te ng components,
for example, flooring components of industrial concrete flooring. The invention relates to a
fully d wave plate and, more particularly, but not exclusively, to a fully bridged and
supported top wave plate.
BACKGROUND TO THE INVENTION
It is known that the edges of components formed of settable material – such as
concrete – may be subject to damage. In particular, where the components formed of settable
material are in the form of concrete flooring components forming a floor surface (such as in
a warehouse or storage facility), the edges of the te flooring components may be
subject to damage as forklifts and the like travel from one concrete component onto a
neighbouring concrete component. This damage may be exacerbated where one ng
component rises relative to the neighbouring flooring ent forming a raised bump
which is t to wear.
It has been proposed to provide an edge protection system to protect the edges of
concrete flooring components. However, the ant has determined that existing edge
tion systems are relatively expensive, may be over-engineered, may be subject to
incorrect installation and/or may not adequately prevent movement of one concrete panel
relative to a neighbouring concrete panel. Examples of the t invention aim to improve
the life-cycle of a material handling equipment (MHE) crossing by ing an impact free
joint, providing an alternative to straight gap systems with wheel impact.
The applicant has determined that it would be advantageous for there to be provided
an improved edge protection system which alleviates or at least ameliorates one or more of
the disadvantages of ng edge protection systems. In particular, the applicant has
identified that it would be ageous for there to be provided a joint edge management
system which provides load er, protecting concrete edges from spalling caused by
materials handling equipment (MHE) with small hard wheels, travelling at speed, carrying
high loads.
SUMMARY OF THE INVENTION
There is disclosed a joint edge protection apparatus for protecting an edge of a first
component formed of settable material and an edge of a second component formed of
settable material at a joint, wherein the apparatus includes a first anchorage part for
anchoring within the first component and a second age part for ing within the
second component, a first plate coupled to the first anchorage part, a second plate coupled
to the second age part, the first plate defining a first abutment surface, the second
plate defining a second abutment surface, wherein the first abutment surface and the second
abutment surface are shaped to facilitate abutment of at least a portion of the second
abutment e against the first abutment surface, and wherein the second anchorage part
is adapted to be movable relative to the first age part from an abutting configuration
in which at least a n of the second nt surface is in nt with the first
abutment surface to a spaced configuration in which the second abutment surface is spaced
relative to the first abutment surface, n the first anchorage part defines a support
surface to t the second plate as the second anchorage part is moved between the
abutting configuration and the spaced configuration, and wherein, in the abutting
configuration an interface between the first abutment surface and the second abutment
surface is offset relative to an interface between the first anchorage part and the second
anchorage part such that the interface of the first abutment surface and the second abutment
surface is positioned above the support surface.
Preferably, the first abutment surface and the second abutment surface are
correspondingly shaped to facilitate abutment of the second abutment surface against the
first abutment surface, such that in the abutting configuration the second abutment surface
is in abutment with the first abutment surface.
Preferably, the first abutment e and the second abutment surface are
pondingly shaped with a wave shape to facilitate abutment of the second nt
surface against the first abutment surface. In one form, the wave shape of the first abutment
surface is matched to the wave shape of the second abutment surface to facilitate continuous
abutment in the abutting configuration. In an alternative form, the wave shape of the first
abutment surface is mismatched to the wave shape of the second abutment surface to
facilitate periodic abutment in the abutting uration.
In a preferred form, the tus is arranged such that a gap between the first
abutment surface and the second abutment surface, throughout a range of movement, is
located above said support surface such that the gap is fully spanned by the t surface.
More preferably, the gap is fully bridged by the t surface such that contaminants
including vermin and debris are prevented from entering the joint between the first
component and the second component. Even more preferably, the fully bridged gap provides
a well for application of joint material. In one example, the joint material is in the form of a
joint epoxy and/or sealant.
Preferably, the range of movement corresponds to a gap between the first abutment
surface and the second abutment surface being between 0 mm and 20 mm.
In a preferred form, said , in use, results in the ace between the first
abutment e and the second abutment surface being offset from a centre of the joint
between the first component and the second component.
Preferably, the first anchorage part includes a first lacer bar supported by a series of
spaced ribs.
It is preferred that the second anchorage part includes a second lacer bar supported
by a series of spaced ribs.
Preferably, the or each lacer bar is in the form of a rail.
There is also disclosed a joint edge protection apparatus for protecting an edge of a
first component formed of settable material and an edge of a second component formed of
settable material at a joint, wherein the apparatus includes a first anchorage part for
ing within the first ent and a second anchorage part for anchoring within the
second component, the first anchorage part being provided with a first plate, the second
anchorage part being provided with a second plate, the first plate ng a first interface
surface, the second plate defining a second interface surface, wherein the first interface
surface and the second interface surface are shaped to facilitate nt of at least a portion
of the second interface surface t the first interface surface, and wherein the second
anchorage part is adapted to be movable relative to the first anchorage part from an abutting
configuration in which at least a portion of the second interface surface is in abutment with
the first interface surface to a spaced configuration in which the second interface surface is
spaced ve to the first interface surface, wherein the first interface surface and the second
interface surface are each shaped with a wave shape, wherein the wave shape of the first
ace surface is mismatched to the wave shape of the second interface surface to facilitate
periodic abutment of the second interface surface against the first interface surface in the
abutting uration.
There is also disclosed an ed joint for protecting an edge of a first component
formed of settable material and an edge of a second component formed of settable material
at a joint, n the apparatus includes a first age part for anchoring within the first
component and a second anchorage part for anchoring within the second component, a first
plate coupled to the first anchorage part, a second plate coupled to the second anchorage
part, the first plate defining a first abutment surface, the second plate defining a second
abutment surface, wherein the first abutment surface and the second abutment surface are
correspondingly shaped to facilitate nt of the second abutment surface t the
first abutment surface, and wherein the second anchorage part is adapted to be movable
relative to the first anchorage part from an abutting configuration in which the second
abutment surface is in abutment with the first abutment surface to a spaced uration in
which the second abutment e is spaced relative to the first abutment surface, wherein
the first anchorage part includes an elongated angled anchorage lacer bar, the elongated
angled anchorage lacer bar being supported by a series of spaced ribs and the rail being tilted
out of the plane of the ribs.
Preferably, the elongated angled anchorage lacer bar is ntially perpendicular
to the first plate.
Preferably, the first anchorage part and the second anchorage part each have a
respective elongated angled anchorage lacer bar, each of the respective elongated angled
anchorage lacer bars being supported by a respective series of spaced ribs and each lacer bar
being tilted out of the plane of the respective ribs.
It is preferred that the armoured joint includes at least one dowel for maintaining
level of the second anchorage part relative to the first anchorage part.
In one form, the anchorage lacer bar varies in width n ribs.
Preferably, each of the spaced ribs has a tapered foot which tapers outwardly into the
lacer bar. More preferably, each tapered foot progressively tapers outwardly into the lacer
ably, each rib is bent at the tapered foot such that the lacer bar is tilted out of a
plane of the ribs.
In a preferred form, each of the ribs is angled at an acute angle relative to the first
plate, and the lacer bar is tilted to be substantially perpendicular to the first plate.
Preferably, between each pair of successive ribs, an upper edge of the lacer bar is
tapered progressively outwardly then progressively inwardly.
It is red that, between each pair of successive ribs, an upper edge of the lacer
bar has a generally wave-like form. More preferably, between each pair of successive ribs,
the upper edge of the lacer bar has a single wave form.
In one form, the lacer bar is in the form of a part of sheet metal.
There is also sed, an armoured joint for protecting an edge of a first component
formed of settable material and an edge of a second component formed of settable material
at a joint, wherein the apparatus includes a first anchorage part for anchoring to the first
component and a second anchorage part for anchoring to the second component, a first plate
coupled to the first anchorage part, a second plate d to the second age part, the
first plate defining a first edge, the second plate defining a second edge, wherein the first
edge and the second edge are correspondingly shaped to facilitate bringing together of the
first edge and the second edge, and wherein the second age part is adapted to be
movable relative to the first anchorage part from a close configuration in which the second
edge is brought er with the first edge to a spaced configuration in which the second
edge is spaced relative to the first edge, wherein the first anchorage part or the second
anchorage part has a support section, the armoured joint including a bracket for supporting
the ed joint ve to a ground e, the bracket comprising an angled upper leg
and an angled lower leg, wherein the bracket is fixed to the support section by the angled
upper leg and the angled lower leg, the angled upper leg being fixed to the support section
to extend downwardly from the support section at a first angle and the angled lower leg being
fixed to the support section to extend upwardly from the support section at a second angle
of the same magnitude as the first angle.
Preferably, a distal end of the upper leg is fixed relative to a distal end of the lower
It is preferred that the upper leg is in the form of a straight part and the lower leg is
in the form of a straight part.
Preferably, the upper leg is provided with an aperture for receiving a support stake,
for supporting the armoured joint relative to a ground surface, and the lower leg is ed
with an aperture for receiving the support stake. More preferably, the aperture of the upper
leg and the aperture of the lower leg are arranged to receive the support stake with the support
stake in a substantially perpendicular orientation relative to a plane of the first plate.
Even more preferably, the apertures and the support stake are arranged to provide a
g condition in which the stake is able to be slid relative to the bracket and a locked
condition in which the stake is locked against sliding relative to the bracket, wherein the
stake is d about its longitudinal axis relative to the bracket n the sliding
condition and the locked condition.
Preferably, the upper leg meets the lower leg at a bent portion of the bracket.
In a preferred form, the upper leg meets the lower leg at an intermediate vertical
n between the upper leg and the lower leg.
Preferably, the t is symmetrical in a horizontal central plane.
There is also disclosed an assembly including an armoured joint as described above,
in combination with a stake, wherein the stake extends through the upper leg and the lower
Preferably, the stake is rcular and an aperture in each of the upper leg and
lower leg is non-circular, such that the stake is able to be rotated relative to the bracket
between a g condition, in which the stake is able to be slid relative to the bracket, and
a locked condition, in which the stake is locked against sliding relative to the bracket.
In a preferred form, the first anchorage part includes an ted angled anchorage
lacer bar, the elongated angled anchorage lacer bar being supported by a series of spaced
ribs and the lacer bar being tilted out of the plane of the ribs.
Preferably, the first anchorage part defines a support surface to support the second
plate as the second age part is moved between the close configuration and the spaced
configuration, and wherein, in the close configuration an interface between the first edge and
the second edge is offset relative to a joint between the first component and the second
ent such that the interface of the first edge and the second edge is positioned above
the support surface.
Preferably, each of the apertures is in the shape of a slot, and the stake has a crosssectional
shape having opposed parallel flat sides connected at either end by a round portion.
There is also disclosed an edge protection system including a first expandable
ed joint to protect a first joint extending in a first direction, a second expandable
armoured joint to protect a second joint extending in a second direction and an intersection
module including a cover plate located at an intersection of the first expandable ed
joint and the second expandable armoured joint.
ably, the first expandable armoured joint includes a first pair of plates arranged
to be moved apart to open a e between the plates in response to expansion of the first
joint, and the second expandable armoured joint includes a second pair of plates ed to
be moved apart to open a crevice between the plates in response to expansion of the second
joint. More preferably, each of the first pair of plates has a wavy edge, the wavy edges being
brought together in a contracted condition of the first expandable armoured joint, and
wherein each of the second pair of plates has a wavy edge, the wavy edges being brought
together in a contracted condition of the second expandable armoured joint.
Preferably, the cover plate is removable from a remainder of said intersection
module. More ically, the plate is ble to facilitate installation. Although not the
main function, the removability of the plate may be used for repair and/or top plate
replacement.
Preferably, the edge tion system includes an ed t for supporting
the intersection module relative to a ground surface, an upper support of the intersection
module being adapted to receive the cover plate fastened thereto. More preferably, the
anchored support anchors the intersection module in a fixed location relative to the ground
surface during expansion of the first expandable armoured joint and the second expandable
armoured joint.
In a preferred form, the first joint is a joint between concrete slab sections and the
second joint is a joint between concrete slab sections. More preferably, the cover plate is a
load supporting member being braced by each slab section when the slab sections move
through slab shrinkage. Even more preferably, the cover plate is a load supporting member
being braced by each slab section when the slab sections move through slab shrinkage with
each slab moving up to 20 mm.
In a preferred form, the intersection module includes a central support column, the
central support column having an upper support plate and a lower anchor plate, the cover
plate being fastened to the upper support plate so as to be connected to the central support
column and the lower anchor plate to remain vertically coupled to the te slab sections.
More preferably, the edge protection system includes a stake which is ed
through the central support column for supporting the ection module relative to the
ground surface.
Preferably, the upper support plate is in the form of an upper cleat plate which is
spaced vertically from the lower anchor plate.
In a preferred form, the stake is in the form of a star picket. More preferably, the
stake is arranged to prevent the central support column from rotating relative to the ground
surface and from translational movement relative to the ground surface. Even more
preferably, the cleat plate and the lower anchor plate restrict movement of the star picket
rly at spaced ons of the central t column.
Preferably, the first direction is not parallel to the second direction. More preferably,
the first direction is perpendicular to the second direction.
There is also disclosed an edge protection system ing a first expandable
armoured joint to protect a first joint extending in a first direction, a second expandable
armoured joint to protect a second joint extending in a second direction and an intersection
module at an intersection of the first expandable armoured joint and the second expandable
ed joint, wherein the first expandable armoured joint has a first joint line, the second
expandable armoured joint has a second joint line, and wherein the intersection module
provides a perimeter joint line such that there is a continuous joint line ing the first
joint line, the perimeter joint line and the second joint line.
Preferably, the intersection module includes a cover plate, and the continuous joint
line extends at least partially around a perimeter of the cover plate n the first joint
line and the second joint line.
Preferably, the first joint line has a generally wavy form and the second joint line has
a generally wavy form. More preferably, the cover plate is arranged such that, regardless of
where lengths of the wavy first and second joints are cut, the wavy first joint line and the
wavy second joint line will connect to the active joint line of the intersection module. In one
form, the cover plate is arranged to ensure such that joint lines are matched to standard joint
runs.
Preferably, joint openings at the perimeter of the cover plate are halved in thickness
when used in a four-way intersection configuration. More preferably, a joint gap is split up
on either side of the cover plate.
In accordance with the t invention, there is provided an edge protection system
including a first expandable armoured joint to protect a first joint extending in a first
direction, a second expandable armoured joint to protect a second joint extending in a second
direction and an intersection module at an intersection of the first expandable armoured joint
and the second expandable armoured joint, wherein the intersection module has an indicator
to enable a user to ensure correct orientation of the intersection module.
Preferably, the intersection module includes a cover plate which is generally
symmetrical in shape. More preferably, the cover plate is generally octagonal in shape.
In one form, the indicator is in the form of a discreet marking.
In one ular form, the indicator is in the form of a small hole in the cover plate.
Preferably, the indicator is provided to enable a user to orientate joints during
installation on-site in a common direction to ensure joint lines match.
In a preferred form, the indicator is positioned in one of four orientations on a first
intersection module on-site depending upon a first pour location. More ably,
uent ection modules are placed each with the respective tor oriented in the
same direction as for the first intersection .
Preferably, the ection module is arranged to allow for two-way, three-way and
four-way intersections to be formed without adjusting ation of the intersection module.
Preferably, the indicator is repeated on a plurality of assembly pieces of the
intersection module to assist with orientation of star picket guides to a common orientation.
More preferably, the indicator is repeated on an upper t plate and a lower support
plate of a support column of the intersection module.
In one form, the first expandable armoured joint has a first joint line, the second
expandable armoured joint has a second joint line, and the intersection module es a
perimeter joint line such that there is a continuous joint line including the first joint line, the
perimeter joint line and the second joint line.
BRIEF DESCRIPTION OF THE GS
The invention is further described by way of non-limiting example only with
reference to the accompanying drawings, in which:
Figure 1 shows a perspective view of a joint edge protection tus having fully
bridged and ted top wave plates;
Figure 2 shows a cross sectional view of the joint edge protection apparatus cast into
concrete slabs;
Figure 3 shows a top perspective view of the joint edge protection apparatus having
a wave-like gap n the plates filled;
Figure 4 shows a side perspective view of a joint edge protection apparatus having
a disruptive folded continuous sheet metal anchor rail;
Figure 5 shows a cross sectional view of the joint edge protection apparatus showing
transfer of forces;
Figure 6 shows a detailed side view of the tive folded anchor rail depicting
passage of forces;
Figure 7 shows a further detailed side view of the disruptive folded anchor rail;
Figure 8 shows a cross nal view of an anti-skew stake bracket;
Figure 9 shows a further cross sectional view of the stake bracket shown supporting
a joint edge protection apparatus;
Figure 10 shows free and locked orientations of a stake relative to an aperture of the
stake bracket;
Figure 11 shows a top perspective view of an edge protection system having a
floating cover plate at an intersection;
Figure 12 shows detail of an intersection module including the cover plate;
Figure 13 shows a sectional view of the intersection top plate anchorage through the
central column;
Figure 14 shows a top perspective view of the intersection module shown anchored
by a stake;
Figure 15 shows a side view of the intersection module shown anchored by the stake;
Figure 16 shows a top view of an intersection module providing a continuous
perimeter joint line;
Figure 17 shows a top view of the intersection module shown at a four-way
intersection of joint gap openings;
Figure 18 shows a top view of the intersection module shown at a three-way
intersection of joint gap openings;
Figure 19 shows a top view of the intersection module shown at a two way
intersection of joint gap openings;
Figure 20 shows a top view of the intersection module having a joint ation
marker on the top plate;
Figure 21 shows a top perspective view of an edge protection system having a
plurality of intersection s, each of the intersection modules having a marker oriented
in a common direction;
Figure 22 shows a top perspective view of the edge protection system in a four-way
ection, showing orientation of the marker;
Figure 23 shows a top perspective view of the edge protection system in a three-way
intersection, showing orientation of the marker;
Figure 24 shows a top perspective view of the edge protection system in a two way
intersection, showing orientation of the marker;
Figure 25 shows the marker being replicated on le components of the
intersection module to ensure correct relative orientation/alignment of the components;
Figure 26 shows fully bridged wave plates – end view (offset joint lines);
Figure 27 shows fully bridged wave plates – end view (offset joint lines with
hidden);
Figure 28 shows fully bridged wave plates – perspective (offset joint lines);
Figure 29 shows fully d wave plates – perspective (offset joint lines, with
filler);
Figure 30 shows fully bridged wave plates – perspective (open);
Figure 31 shows fully bridged wave plates – – perspective (open, with filler);
Figure 32 shows fully d wave plates – perspective (closed);
Figure 33 shows fully d wave plates – plan view (closed);
Figure 34 shows fully bridged wave plates – plan view ;
Figure 35 shows disruptive folded anchor rail – end view (simples, one side);
Figure 36 shows disruptive folded anchor rail – end view;
Figure 37 shows disruptive folded anchor rail – front view;
Figure 38 shows disruptive folded anchor rail – perspective (full joint, simple);
Figure 39 shows disruptive folded anchor rail – perspective (one side);
Figure 40 shows disruptive folded anchor rail – perspective (one side, rail only);
Figure 41 shows tive folded anchor rail – top view (one side);
Figure 42 shows anti skew stake bracket – end view (simple);
Figure 43 shows anti skew stake bracket – end view;
Figure 44 shows anti skew stake bracket – perspective (locked ;
Figure 45 shows anti skew stake bracket – perspective (loose stake);
Figure 46 shows anti skew stake bracket – – perspective (simple);
Figure 47 shows anti skew stake bracket – perspective;
Figure 48 shows anti skew stake bracket – plan view (locked stake);
Figure 49 shows anti skew stake bracket – plan view (loose stake);
Figure 50 shows ng cover plate on intersection – perspective (centre column);
Figure 51 shows floating cover plate on ection – ctive (step 1);
Figure 52 shows floating cover plate on intersection – perspective (step 2);
Figure 53 shows floating cover plate on intersection – perspective (step 3);
Figure 54 shows floating cover plate on intersection – perspective (step 4);
Figure 55 shows floating cover plate on intersection – perspective (step 5);
Figure 56 shows floating cover plate on ection - plan view (centre column);
Figure 57 shows floating cover plate on intersection – plan view (perimeter gap,
closed);
Figure 58 shows floating cover plate on intersection - plan view (perimeter gap,
open);
Figure 59 shows floating cover plate on intersection – side view (centre column with
hidden);
Figure 60 shows floating cover plate on intersection - side view (centre column);
Figure 61 shows intersection continuous perimeter joint line – plan view (2-way,
open);
Figure 62 shows ection uous perimeter joint line – plan view (3-way,
open);
Figure 63 shows intersection continuous perimeter joint line – plan view (4-way,
open);
Figure 64 shows intersection continuous perimeter joint line – plan view (closed);
Figure 65 shows joint orientation marker – perspective section layout);
Figure 66 shows joint orientation marker – perspective (matching holes);
Figure 67 shows joint orientation marker – perspective;
Figure 68 shows joint ation marker – plan view (intersection layout);
Figure 69 shows joint orientation marker – plan view;
Figures 70a to 70c show an example of a joint edge protection apparatus having
deliberately mismatched waves to facilitate lateral movement; and
Figures 71a to 71d show another example of a joint edge protection apparatus
having deliberately mismatched waves as well as predefined gaps to facilitate lateral
movement.
DETAILED DESCRIPTION
1. FULLY BRIDGED AND SUPPORTED TOP WAVE PLATES
With reference to Figures 1 to 7 and Figures 26 to 34, there is shown a joint edge
tion apparatus having fully bridged and supported top wave plates in ance with
an example of the present invention.
More specifically, there is provided a joint edge tion tus 10 for
protecting an edge of a first component 12 formed of settable al and an edge of a
second component 14 formed of settable material at a joint 16. The apparatus 10 es a
first anchorage part 18 for anchoring within the first component 12 and a second anchorage
part 20 for anchoring within the second component 14. The apparatus 10 also includes a first
plate 22 coupled to the first anchorage part 18, a second plate 24 coupled to the second
anchorage part 20, the first plate 22 defining a first abutment surface 26 and the second plate
24 defining a second abutment e 28.
The first abutment surface 26 and the second abutment surface 28 are
correspondingly shaped to facilitate abutment of the second abutment surface 28 against the
first abutment surface 26. The second anchorage part 20 is adapted to be movable relative
to the first age part 18 from an abutting configuration (the Figure 32) in which the
second abutment surface 28 is in abutment with the first nt surface 26 to a spaced
configuration (the Figure 30) in which the second abutment surface 28 is spaced relative to
the first abutment surface 26. The first anchorage part 18 defines a support surface 30 to
support the second plate 24 as the second anchorage part 20 is moved between the abutting
uration and the spaced configuration. In the abutting configuration, an interface
between the first nt surface 26 and the second abutment surface 28 is offset relative
to an interface between the first anchorage part 18 and the second anchorage part 20 such
that the interface of the first abutment e 26 and the second abutment surface 28 is
positioned above the support surface 30. In other words, the line of abutment between the
first abutment surface 26 and the second abutment surface 28 is offset relative to the joint
16 such that the second plate 24 is supported by the first anchorage part 18 having the support
surface 30.
The first abutment surface 26 and the second abutment surface 28 are
correspondingly shaped with a wave shape (the Figure 1) to facilitate abutment of the second
abutment surface 28 against the first abutment surface 26.
In the preferred example shown in the drawings, the apparatus 10 is arranged such
that a gap 32 between the first abutment surface 26 and the second abutment surface 28,
throughout a range of movement, is located above the support surface 30 such that the gap
32 is fully spanned by the support surface 30. In this way, the gap 32 is fully bridged by the
support surface 30 such that debris is prevented from entering the joint 16 between the first
component 12 and the second component 14. The fully d gap 32 may provide a well
34 for application of joint al 36. The joint al 36 may be in the form of a joint
epoxy and/or sealant.
The range of movement corresponds to a gap 32 between the first abutment surface
26 and the second nt surface 28 being between 0 mm and 20 mm.
In use, the offset results in the interface between the first nt e 26 and
the second abutment surface 28 being offset from a centre of the joint 16 between the first
component 12 and the second component 14.
The first anchorage part 18 may include a first lacer bar 38 supported by a series of
spaced ribs 40. Similarly, the second anchorage part 20 may include a second lacer bar 42
supported by a series of spaced ribs 40. Each of the lacer bars 38, 42 may be in the form of
a rail.
Accordingly, as will be appreciated from the above, this aspect relates to:
The separation plate and joint line under the top wave plates 22, 24 is offset from the
centre of the joint 16 to allow 20mm of supported opening of the waved top plates
22, 24 while fully supporting both sides of the joint 16 with concrete and steel.
The ant waved gap 32 between wave plates 22, 24 at 20mm is fully enclosed
and does not allow debris the enter the remaining section (slab height - 6mm) of the
joint 16.
Enclosing the joint gap 32 with the t surface 30 helps to reduce corrosion and
g s) of the load transfer mechanisms (dowels).
The fully enclosed d gap 32 can act as a 6mm deep well 34 for application of
joint epoxies and sealants (if required). Epoxy is fully supported by steel and
concrete.
The bridged gap 32 acts as barrier against foreign objects entering the potential
20mm joint 16.
2. DISRUPTIVE FOLDED CONTINUOUS SHEET METAL ANCHOR RAIL
With reference to Figures 5 to 7 and Figures 35 to 41, there is also disclosed an
armoured joint having a disruptive folded continuous sheet metal anchor rail.
More specifically, as shown in Figures 5 to 7, the joint edge protection apparatus 10
forms an armoured joint having a disruptive folded continuous sheet metal anchor rail. In
particular, the armoured joint protects an edge of the first component 12 formed of settable
material and an edge of the second component 14 formed of settable al at the joint 16.
The apparatus 10 includes the first anchorage part 18 for anchoring within the first
component 12 and the second age part 20 for anchoring within the second component
14. The first plate 22 is coupled to the first anchorage part 18 and the second plate 24 is
coupled to the second anchorage part 20. The first plate 22 defines the first abutment surface
26, and the second plate 24 defines the second abutment surface 28. The first abutment
surface 26 and the second abutment surface 28 are correspondingly shaped to facilitate
abutment of the second abutment surface 28 against the first nt surface 26. The
second anchorage part 20 is adapted to be movable ve to the first anchorage part 18
from an abutting configuration (see Figure 32) in which the second abutment surface 28 is
in abutment with the first abutment surface 26 to a spaced configuration (see Figure 30) in
which the second abutment surface 28 is spaced relative to the first abutment surface 26. The
first anchorage part 18 includes the first lacer bar 38 which is in the form of an elongated
angled anchorage lacer bar 38. The first lacer bar 38 is supported by a series of the spaced
ribs 40 and the first lacer bar 38 is in the form of a rail which is tilted out of a plane of the
ribs 40 (see Figure 5).
The ted angled age lacer bar 38 is substantially perpendicular to the first
plate 22. In particular, as seen in figure 5, the first lacer bar 38 may be substantially vertical
whereas the first plate 22 may be substantially ntal for supporting forklifts and the like
moving across a working floor surface.
As can be seen in Figure 5, the first anchorage part 18 and the second anchorage part
each have a respective elongated angled anchorage lacer bar 38, 42. Each of the
respective elongated angled age lacer bars are supported by a respective series of
spaced ribs 40 and each lacer bar is tilted/bent out of a plane of the respective ribs 40. In this
way, the joint edge protection tus 10 is provided with a disruptive folded continuous
sheet metal anchor rail which provides more consistent anchorage along the armoured joint.
The armoured joint in the form of the joint edge protection apparatus 10 may include
at least one dowel 44 for maintaining level of the second anchorage part 20 relative to the
first anchorage part 42. In particular, as shown in Figure 3 and Figure 4, the joint edge
protection apparatus 10 may include a plate dowel which is movable within one or more
housing/sheath/sleeve fitted to the second age part 20 and/or the first anchorage part
18. The dowel 44 may be in the form of a plate dowel being generally rectangular or square
in shape and, in situ, having edges extending at an angle to a central axis of the joint 16. In
ular, the plate dowel may have edges extending at an angle of approximately 45° to a
central axis of the joint.
As can be seen in Figure 4, the anchorage lacer bar 42 varies in width between the
ribs 40. Specifically, it can be seen that, between adjacent ribs 40, the lacer bar 42 increases
in width to a thickest portion which is midway between the adjacent ribs 40. This is achieved
by having a straight lower edge to the lacer bar 42 and a tapered upper edge to the lacer bar
42, which upper edge tapers outwardly to an apex 46 which is midway between the nt
ribs 40.
Accordingly, in this way, between each pair of successive ribs 40, the upper edge of
the lacer bar 42 is tapered progressively outwardly to the apex 46 and then progressively
inwardly to the next rib 40. As such, between each pair of sive ribs 40, the upper edge
of the lacer bar 42 has a generally wave-like form. Even more specifically, in the example
shown, between each pair of successive ribs 40 the upper edge of the lacer bar 42 has a single
wave form. The lacer bar 42 may be in the form of a part of sheet metal.
As can be seen in Figure 6 and Figure 7, each of the spaced ribs 40 has a tapered foot
48 which tapers outwardly into the lacer bar 42. Each d foot 48 progressively tapers
outwardly into the lacer bar 42. As will be appreciated in symmetry, the first lacer bar 38
may take a similar form to the second lacer bar 42, as shown in Figure 6 and Figure 7.
Each rib 40 may be bent at the tapered foot 48 such that the lacer bar 42 is tilted out
of a plane of the ribs 40 (see Figure 5. In the ular example shown in the drawings,
each of the ribs 40 is angled at an acute angle relative to the first plate 22 (that is, an outside
angle between the ribs 40 and the horizontal is an acute angle), and the second lacer bar 42
is tilted to be substantially perpendicular to the first plate 22. Similarly, the first lacer bar
38 is also tilted to be ntially perpendicular to the first plate 22.
Accordingly, as will be appreciated from the above, this aspect relates to:
A continuous sheet metal studding rail – or lacer bar – to anchor the joint evenly into
the concrete components. More consistent anchorage along the armoured plate joint
may be achieved with this ement.
Large cut-outs to allow adequate concrete and aggregate flow around anchor points
and under joint plates.
Folded through anchor point to provide better ut resistance. That is, the
arrangement requires the fold to un-bend before the anchor can pull out. This
removes a sheet metal blade nature of anchorage.
Fold on end of anchor points is connected n points by a sheet metal lacer bar
– this ties anchorage at each stud into the neighbouring points, sing pull out
resistance.
The lacer bar fold adds ess and rigidity to the entire rail length.
Cut-outs are broken up along the rail length with the cut-outs continuing around the
fold. This potentially removes a crack-inducing nature of a straight edge in the slab.
Additional wave formation along the straight edge n anchor points ses
the surface area of the bottom of the cut-out giving better anchorage.
3. ANTI-SKEW STAKE BRACKET
Turning to Figures 8, 9 and 42 to 49, there is also shown a joint edge protection
apparatus 10 being supported by an anti-skew stake bracket 50. Advantageously, the bracket
50 has mirrored angled legs which provide stronger support for heavier joints, achieved by
the arc of movement of the legs.
More specifically, as will be iated from the above, the joint edge protection
apparatus 10 provides an armoured joint for protecting an edge of the first component 12
formed of settable al and an edge of the second component 14 formed of settable
al at the joint 16. The apparatus 10 includes the first anchorage part 18 for anchoring
to the first component 12 and the second anchorage part 20 for anchoring to the second
component 14. The apparatus 10 also includes the first plate 22 coupled to the first
anchorage part 18 and the second plate 24 coupled to the second anchorage part 20. The
first plate 22 defines the first abutment surface 26 in the form of a first edge and the second
plate 24 defines the second abutment surface 28 in the form of a second edge. The first edge
26 and the second edge 28 are correspondingly shaped to facilitate bringing together of the
first edge 26 and the second edge 28. In particular, the second anchorage part 20 is adapted
to be e relative to the first anchorage part 18 from a close configuration (see Figure
32) in which the second edge 28 is brought together with the first edge 26 to a spaced
configuration (see Figure 30) in which the second edge 28 is spaced relative to the first edge
26.
The first anchorage part 18 or the second anchorage part 20 has a support section 52,
the armoured joint ing the bracket 50 for supporting the armoured joint relative to a
ground surface. The t 50 comprises an angled upper leg 54 and an angled lower leg
56, the bracket 50 being fixed to the support section 52 by the angled upper leg 54 and the
angled lower leg 56. With reference to Figure 9, the angled upper leg 54 is fixed to the
support section 52 to extend downwardly from the support section 52 at a first angle 58, and
the angled lower leg 56 is fixed to the support section 52 to extend upwardly from the support
n 52 at a second angle 60 of the same magnitude as the first angle 58.
A distal end 62 of the upper leg 54 is fixed relative to a distal end 64 of the lower leg
56. The distal end 62 of the upper leg 54 may be ted to the distal end 64 of the lower
leg 56 by way of an intermediate portion as shown in Figure 8, or, alternatively, may be
directly connected as shown in Figure 9. The upper leg 54 may be in the form of a straight
part and the lower leg 56 may be in the form of a straight part.
As shown in Figures 9 and 10, the upper leg 54 may be provided with an aperture 66
for receiving a support stake 68, for supporting the armoured joint relative to a ground
surface, and the lower leg 56 may be provided with an aperture 70 for receiving the support
stake 68. The aperture 66 of the upper leg 54 and the aperture 70 of the lower leg 56 are
arranged to receive the support stake 68 with the support stake 68 in a substantially
perpendicular orientation relative to a plane of the first plate 22. In other words, the support
stake 68 may be substantially vertical whereas the first plate 22 is ntially horizontal.
Turning to Figure 10, the apertures 66, 70 and the support stake 68 are arranged to
e a sliding condition (see and side of Figure 10) in which the stake 68 is able to
be slid relative to the bracket 50 and a locked ion (the hand side of Figure 10) in
which the stake 68 is locked against sliding relative to the bracket 50. This may be achieved,
as shown, by configuring the apertures 66, 70 each as an elongated slot, with the stake 68
having a cross-section with parallel straight sides. In this way, the stake 68 is rotated about
its longitudinal axis relative to the bracket 50 between the sliding condition and the locked
condition.
The upper leg 54 may meet the lower leg 56 at a bent portion of the bracket 50, as
shown in Figure 9. Alternatively, the upper leg 54 may meet the lower leg 56 at an
intermediate vertical section between the upper leg 54 and the lower leg 56. The bracket 50
may be symmetrical in a horizontal central plane.
There may also be provided the armoured joint together with the stake in an
assembly. In other words, there may be provided an assembly including an armoured joint
as bed above, in combination with a stake, wherein the stake extends through the upper
leg and the lower leg.
As shown clearly in Figure 10, the stake 68 is non-circular and the aperture 66, 70 in
each of the upper leg 54 and lower leg 56 is rcular. In this way, the stake 68 is able
to be rotated ve to the bracket 50 between a sliding ion, in which the stake 68 is
able to be slid relative to the bracket 50, and a locked condition, in which the stake 68 is
locked against sliding relative to the bracket 50.
The first anchorage part 18 may include the elongated angled anchorage lacer bar 38,
the elongated angled anchorage lacer bar 38 being supported by a series of spaced ribs 40
and the lacer bar 38 being tilted out of the plane of the ribs 40.
The first anchorage part 18 may define the support surface 30 to t the second
plate 24 as the second anchorage part 20 is moved between the close configuration and the
spaced configuration. In the close configuration, an interface between the first edge 26 and
the second edge 28 is offset relative to the joint 16 between the first component 12 and the
second component 14 such that the interface of the first edge 26 and the second edge 28 is
positioned above (and supported by) the support e 30.
Each of the apertures 66, 70 may be in the shape of a slot (see Figure 10), and the
stake 68 may have a cross-sectional shape having opposed parallel flat sides connected at
either end by a round portion.
Accordingly, as will be appreciated from the above, this aspect s to:
Mirrored angled legs 54, 56 of the stake bracket 50 provide stronger support for
heavier joints. They resist skewing under weight by requiring the angled leg to
overcome the mirrored angle of the opposing leg of the bracket 50 before skewing.
Angled nature of t 50 moves fixing points on separation plate both higher (on
top) and lower (on bottom) to help brace the joint where it is required.
Stake brackets 50 have slots 66, 70 which work with twist-and-lock stakes 68 for
joint height adjustment, ing and lock-off.
4. FLOATING COVER PLATE SYSTEM ON INTERSECTION
With reference to Figures 11 to 15 and Figures 50 to 60, there is disclosed an edge
protection system 72 having a floating cover plate system on an intersection.
Advantageously, the ng cover plate system es a centralised cover plate which
allows concrete slab sections at the intersection to open away from the cover plate, leaving
the cover plate fixed in place.
More specifically, there is shown an edge protection system 72 ing a first
expandable armoured joint 74 to protect a first joint 76 extending in a first direction, a second
expandable ed joint 78 to protect a second joint 80 extending in a second direction
and an intersection module 82 including a cover plate 84 located at an intersection 86 of the
first able armoured joint 74 and the second expandable armoured joint 76. The first
expandable armoured joint 74 and the second expandable armoured joint 78 may each be in
the form of a joint edge protection apparatus 10 as described above.
The first expandable armoured joint 74 includes a first pair of plates 88 arranged to
be moved apart to open a crevice 90 between the plates in response to expansion of the first
joint 76, and the second expandable armoured joint 78 includes a second pair of plates 92
arranged to be moved apart to open a crevice 94 between the plates 92 in response to
ion of the second joint 80. Each of the first pair of plates 88 has a wavy edge 96, the
wavy edges 96 being brought together in a contracted ion of the first expandable
armoured joint 74. Each of the second pair of plates 92 also has a wavy edge 96, the wavy
edges 96 being brought together in a contracted condition of the second expandable
armoured joint 78.
The cover plate 84 is removable from a remainder of the intersection module 82.
The edge protection system 72 includes an anchored support 98 for supporting the
intersection module 82 ve to a ground surface. An upper support 100 of the intersection
module 82 is adapted to receive the cover plate 84 fastened thereto. The anchored support
98 anchors the intersection module 82 in a fixed location relative to the ground surface
during expansion of the first able armoured joint 74 and the second able
armoured joint 78.
In the example shown, the first joint 76 is a joint between concrete slab sections 102
and the second joint 80 is also a joint between concrete slab sections 102. The cover plate
84 is a load supporting member being braced by each slab n 102 when the slab sections
102 move through slab shrinkage. In particular, it is typical for the slab sections 102 to shrink
during drying of the concrete. More specifically, the cover plate 84 is a load supporting
member being braced by each slab section 102 when the slab sections 102 move through
slab shrinkage with each slab moving up to 20 mm. This support may be achieved by way
of the intersection module 82 having a separate anchorage part 104 for each of the separate
slab sections 102, such that each anchorage part 104 is cast into a respective one of the slab
sections 102. In turn, the anchorage parts 104 are vertically supported by a central lower
shoulder 106 and a central upper shoulder 108 of the intersection module 82.
The ection module 82 includes a central support column 110, the l
support column 110 having an upper support plate (in the form of central upper shoulder
108) and a lower anchor plate (in the form of central lower shoulder 106), the cover plate 84
being fastened to the upper t plate 108 so as to be connected to the central support
column 110 and the lower anchor plate 106 to remain vertically coupled to the concrete slab
ns 102.
The edge protection system 72 includes a stake 112 which is inserted through the
central support column 110 for supporting the intersection module 82 relative to the ground
surface. The upper support plate al upper shoulder 108) may be in the form of an upper
cleat plate which is spaced vertically from the lower anchor plate (central lower shoulder
106).
The stake 112 may be in the form of a star picket. The stake 112 may be arranged to
prevent the central support column 110 from rotating relative to the ground surface and from
translational movement relative to the ground surface, as depicted by arrows in Figures 14
and 15. The cleat plate 108 and the lower anchor plate 106 ct movement of the star
picket angularly at spaced locations of the central support column 110.
In the example shown in the drawings, the first direction is not parallel to the second
ion such that the first joint 76 is not el to the second joint 80. More specifically,
in the e shown in the gs, the first direction is perpendicular to the second
direction such that the first joint 76 is perpendicular to the second joint 80.
Accordingly, as will be appreciated from the above, this aspect relates to:
A centralised cover plate 84 which allows the slab sections 102 at the intersection 86
to open away from the cover plate 84, leaving the cover plate 84 fixed in place.
The cover plate 84 is load supporting, being braced by each slab section 102 when
the slab sections 102 move through slab shrinkage up to 20mm.
Anchor plate is fixed down without studs, using its connection to the central support
column 110 and bottom anchor plate 106 to remain fixed to the concrete slab.
The top cover plate 84 can be removed, and the star picket 112 can be hammered
down the central column 110 through the guide holes in the top cleat plate 108 and
the bottom anchor plate 106 acting like an axis to fix and support the top plate
assembly. The star picket 112 can be hammered flush with the top cleat plate 108
before replacing the top cover plate above to cover.
The star picket 112 prevents the l assembly from rotating and fixes it laterally
in both ‘X’ and ‘Y’ directions.
The guides at the cleat plate (top) 108 and anchor plate (bottom) 106 restrict
movement against the star picket 112 angularly at opposite ends of the assembly.
5. ECTION CONTINUOUS PERIMETER JOINT LINE
With reference to Figures 16 to 19 and Figures 61 to 64, there is shown an edge
protection system 72 having an intersection continuous perimeter joint line 114.
Advantageously, this feature results in the joint line circling a perimeter of the centralised
cover plate 84 to the next joint run rather than continuing directly across the intersection
module 82 meaning that, no matter where infill lengths of the wavy plates 88, 92 are cut,
they will connect to the active joint line at the intersection module 82.
More specifically, as shown in the drawings, there is depicted an edge protection
system 72 including a first expandable armoured joint 74 to protect a first joint 76 extending
in a first direction and a second expandable armoured joint 78 to t a second joint 80
extending in a second direction. The edge protection system 72 also includes an intersection
module 82 at an intersection 86 of the first expandable armoured joint 74 and the second
expandable armoured joint 78. The first expandable armoured joint 74 has a first joint line
116 and the second expandable ed joint 78 has a second joint line 118. The
intersection module 82 provides a ter joint line 120 such that there is a continuous
joint line ing the first joint line 116, the perimeter joint line 120 and the second joint
line 118.
The intersection module 82 includes the cover plate 84, and the continuous joint line
extends at least partially around a perimeter of the cover plate 84 between the first joint line
116 and the second joint line 118.
The first joint line 116 has a generally wavy form and the second joint line 118 also
has a generally wavy form. The cover plate 84 is arranged such that, regardless of where
lengths of the wavy first and second plate pairs 88, 92 are cut, the wavy first joint line 116
and the wavy second joint line 118 will connect to the active joint line of the intersection
module 82. In one form, the cover plate 84 is arranged to ensure that joint lines are d
to standard joint runs.
As will be appreciated by those skilled in the art, joint openings at the perimeter of
the cover plate 84 are halved in ess when used in a four-way intersection configuration,
as shown in Figure 17. In particular, a joint gap may be split up on either side of the cover
plate 84. The edge protection system 72 may also be used at a three-way intersection
configuration as shown in Figure 18 or a two-way intersection configuration as shown in
Figure 19.
Accordingly, as will be appreciated from the above, this aspect relates to:
The joint line does not continue directly across the intersection module, it instead
circles the perimeter of a centralised cover plate 84 to the next joint run.
A perimeter joint line means that no matter where infill lengths of the wavy plates
88, 92 are cut, they will connect to the active joint line of the intersection module 82.
Joint lines 116, 118 are never mismatched to rd joint runs.
Joint gap openings at the perimeter of the central plate 84 are halved when used in
4-way intersection configuration (most common). The joint gap is split up on either
side of the central plate 84.
6. JOINT ORIENTATION MARKER ON INTERSECTION
With reference to Figures 20 to 25 and Figures 65 to 69, there is also disclosed an
edge protection system 72 having a joint orientation marker 122 to ensure correct orientation
of the intersection module 82, rotationally about a central axis of the intersection module 82.
In particular, the edge protection system 72 includes a first expandable armoured
joint 74 to protect a first joint 76 extending in a first direction and a second able
ed joint 78 to protect a second joint 80 extending in a second direction. The edge
protection system 72 also includes an intersection module 82 at an intersection 86 of the first
expandable armoured joint 74 and the second expandable armoured joint 78. The
intersection module 82 has an tor 122 to enable a user to ensure correct orientation of
the intersection module 82.
The intersection module 82 includes a cover plate 84 which is generally symmetrical
in shape. In particular, as shown in the drawings, the cover plate 84 is generally octagonal
in shape.
The indicator 122 may be in the form of a discreet g. In one particular form,
the indicator 122 may be in the form of a small hole in the cover plate 84. The indicator 122
is provided to enable a user to orientate joints during installation on-site in a common
ion to ensure joint lines match.
This is important as although the cover plate 84 itself appears to be symmetrical from
above, the components of the intersection module 82 below the cover plate 84 are not
symmetrical. Specifically, it is ant that the age parts 104 of the intersection
module 82 align with the joints of the concrete slab sections 102, as well as with the
anchorage parts 104 of the other intersection modules 82 within the edge tion system
In a method of installation, the indicator 122 is positioned in one of four rotational
ations on a first intersection module 82 on-site depending upon a first pour location.
Subsequent intersection modules 82 within the same edge protection system 72 (see Figure
21) are placed each with the tive indicator 122 oriented in the same direction as for
the first intersection module 82.
The intersection module 82 may be arranged to allow for two-way, three-way and
four-way intersections to be formed without ing orientation of the intersection module
82. Figure 22 shows a four-way intersection, Figure 23 shows a three-way intersection and
Figure 24 shows a y intersection.
With reference to Figure 25, the indicator 122 may be repeated on a plurality of
assembly pieces of the intersection module 82 to assist with orientation of star picket guides
to a common orientation. In particular, as shown in Figure 25, the indicator 122 may be
repeated on an upper support plate 108 and a lower support plate 106 of a support column
110 of the intersection module 82.
The first expandable armoured joint 74 may have a first joint line 116, and the second
expandable armoured joint 78 may have a second joint line 118. The ection module
82 may provide a ter joint line 120 such that there is a continuous joint line including
the first joint line 116, the perimeter joint line 120 and the second joint line 118.
Accordingly, as will be appreciated from the above, this aspect relates to:
A joint orientation marker 122 in the form of a small hole in the top cover plate 84
which acts as a positioning marker to orientate all joints during installation onsite in
the same direction, ng joint lines match up.
The small hole is to be positioned in one of four orientations on a first intersection
onsite depending upon first pour location. All uent intersections for the project
are to be place with the respective hole rotationally oriented in the same direction.
Module nature on intersection allows for 2-way, 3-way and 4-way intersection to be
formed without adjusting intersection orientation.
Hole is repeated on all central top plate assembly pieces to help orientate star picket
guides to the same orientation.
Advantageously, the applicant has fied that examples of the present ion
may serve to prolong the serviceability of the floor (working surface). Forklift wheels are
fully supported by the "wave" plate design to a joint width opening of 20 mm. r
design intersection provides a fast, effective and ive set up of two, three and four way
intersections, significantly mitigating the risk of restraint that leads to uncontrolled te
cracking and spalling.
Figure 70 shows an example of a joint edge protection apparatus 10 having a wave
profile for providing a capability for extra lateral movement. More specifically, the wave
form of one plate 22 is deliberately mismatched relative to the wave form of the other plate
24 so as to facilitate lateral movement.
In particular, Figure 70 shows a joint edge protection apparatus 10 for protecting an
edge of a first component formed of settable material and an edge of a second component
formed of le material at a joint. The apparatus 10 includes a first age part for
anchoring within the first component and a second anchorage part for anchoring within the
second ent, the first anchorage part being provided with a first plate 22. The second
anchorage part is provided with a second plate 24. The first plate 22 defines a first interface
surface 26 and the second plate 24 defines a second interface surface 28. The first interface
surface 26 and the second interface surface 28 are shaped to facilitate nt of at least a
portion of the second interface surface 28 against the first interface surface 26. The second
anchorage part is adapted to be movable relative to the first anchorage part from an abutting
configuration in which at least a portion of the second interface surface 28 is in abutment
with the first interface surface 26, to a spaced uration in which the second interface
surface 28 is spaced relative to the first interface e 26. The first interface surface 26
and the second interface surface 28 are each shaped with a wave shape, wherein the wave
shape of the first interface surface 26 is ched to the wave shape of the second interface
surface 28 to facilitate periodic abutment of the second interface surface 28 against the first
interface surface 26 in the abutting configuration. In other words, the wave shapes are
mismatched so as to ensure gaps between the points/regions of periodic abutment.
As can be seen in Figures 70a, 70b and 70c, each of these representations shows the
joint edge protection apparatus 10 in the abutting configuration. Figure 70a shows a default
on in which the first plate 22 and the second plate 24 are laterally aligned such that
points or regions of contact/abutment are at each peak and trough of the wave forms. The
ching of the waveforms ensures in this default position that, between each peak and
trough there is a gap between the first interface surface 26 and the second interface surface
28. Figure 70b shows a configuration in which the first plate 22 is moved 2mm downwardly
relative to the second plate 24 in an arrangement in which slopes of the waveforms come
er in a nested ement to form an S-shaped portion of abutment which extends
from a peak of the wave form of the first interface surface 26 to a trough of the wave form
of the first interface surface 26. Similarly, Figure 70c shows a configuration in which the
first plate 22 is moved 2mm upwardly ve to the second plate 24 in an arrangement in
which the slopes of the waveforms come together in a nested arrangement to form an S-
shaped portion of abutment which extends from a peak of the waveform of the first interface
surface 26 to a trough of the waveform of the first interface surface 26.
As will be appreciated, in each of the configurations shown in Figure 70a, 70b and
70c, there is periodic abutment in the abutting configuration in contrast to the arrangement
shown in Figure 22 in which the waveforms are matched such that the abutment there is
continuous.
Returning to Figures 70a to 70c, advantageously, the joint top plates 22, 24 have a
mismatched full length waved tooth profile to provide low impact joint transition while
giving extra l movement accommodation during slab curing. An additional gap has
been allowed either side of the teeth to allow lateral movement at 0 mm joint gap if ed
of up to 2 mm (in either direction). This additional gap is shown in Figure 70a and is due to
the mismatching of the wave forms. The teeth have tapered (45°) sides to provide 1:1 lateral
movement versus joint opening, the additional 2mm gap providing extra allowance for high
age parts of the slab (corners) and rectangular slabs.
As shown in s 71a to 71d, the first plate 22 and second plate 24 may also be
provided with predefined gaps 124 of 4 mm n the plates 22, 24 at joining lengths to
allow joint lateral movement within binding during slab shrinkage. The ement shown
provides adjustment capability when connecting joints while maintaining a minimum 2 mm
predefined gap.
Accordingly, Figures 71a to 71d show r example of a joint edge protection
apparatus 10 having deliberately mismatched waves as well as predefined gaps 124 to
facilitate lateral movement. Figure 71a shows the first plate 22 and the second plate 24 in a
default position with a predefined gap 124 of 4 mm in place. Figure 71b shows the first plate
22 moved upwardly relative to the second plate 24, with the predefined gaps 124 of 4 mm
still in place. Figure 71c shows the predefined gap 124 reduced to accommodate upward
movement of one second plate 24 relative to the first plate 22 as well as relative to an adjacent
second plate 24. Figure 71d shows a predefined gap 124 increased to accommodate
downward movement of one second plate 24 relative to the first plate 22 as well as relative
to an adjacent second plate 24.
The described construction has been advanced merely by way of example and many
modifications and ions may be made without departing from the spirit and scope of the
invention, which includes every novel feature and combination of features herein disclosed.
In particular, the applicant has determined that other modifications may include one or more
of the following:
- cutting of bottom sheet metal anchor above dowel plates and sleeves to allow
better concrete compaction around dowels;
- added twist and lock stake acles on an opposite side of the joint to stake
ts to allow joint levelling during setup without welding;
- removed section of separation plate at top section at an offset end. This can be
arranged to allow direct connection between top section pieces to prevent
stepping of joint s;
- ng all clamping bolt nuts to wing nuts to aid in l after pouring (if
required);
- increased adjustment capability to offset clamping bolt by way of increased
le size;
- plug weld location under top plate change slots for fillet welds; and
- assembly bolthole (4places) increase from 10.5 mm er to 11 mm diameter.
hout this specification and the claims which follow, unless the context
requires otherwise, the word "comprise", and variations such as "comprises" and
"comprising", will be understood to imply the ion of a stated integer or step or group
of integers or steps but not the exclusion of any other integer or step or group of integers or
steps.
The reference in this specification to any prior publication (or information d
from it), or to any matter which is known, is not, and should not be taken as an
acknowledgment or admission or any form of suggestion that that prior publication (or
information derived from it) or known matter forms part of the common general knowledge.
LIST OF REFERENCE NUMERALS
joint edge protection apparatus
12 first component
14 second component
16 joint
18 first anchorage part
second anchorage part
22 first plate
24 second plate
26 first abutment surface
28 second abutment surface
support surface
32 gap
34 well
36 joint material
38 first lacer bar
40 spaced ribs
42 second lacer bar
44 dowel
46 apex
48 tapered foot
50 t
52 support section
54 upper leg
56 lower leg
58 first angle
60 second angle
62 distal end of the upper leg
64 distal end of the lower leg
66 aperture in upper leg
68 stake
70 aperture in lower leg
72 edge protection system
74 first expandable armoured joint
76 first joint
78 second expandable armoured joint
80 second joint
82 intersection module
84 cover plate
86 intersection
88 first pair of plates
90 first crevice
92 second pair of plates
94 second crevice
96 wavy edge
98 anchored support
100 upper support
102 concrete slab sections
104 anchorage part
106 central lower er
108 central upper shoulder
110 central support column
112 stake
114 intersection uous perimeter joint line
116 first joint line
118 second joint line
120 perimeter joint line
122 joint orientation marker
124 predefined gap
Claims (12)
1. An edge protection system including a first expandable armoured joint to protect a first joint extending in a first direction, a second expandable armoured joint to protect a second joint ing in a second direction and an intersection module at an intersection of the first able armoured joint and the second expandable armoured joint, wherein the intersection module has an indicator to enable a user to ensure correct orientation of the intersection module.
2. An edge tion system as d in claim 1, wherein the intersection module includes a cover plate which is generally symmetrical in shape.
3. An edge tion system as claimed in claim 2, wherein the cover plate is generally octagonal in shape.
4. An edge protection system as claimed in any one of claims 1 to 3, wherein the indicator is in the form of a discreet marking.
5. An edge tion system as claimed in claim 2, wherein the indicator is in the form of a small hole in the cover plate.
6. An edge protection system as claimed in any one of claims 1 to 5, wherein the indicator is provided to enable a user to orientate joints during installation on-site in a common direction to ensure joint lines match.
7. An edge protection system as claimed in any one of claims 1 to 6, wherein the indicator is positioned in one of four orientations on a first intersection module on-site depending upon a first pour location.
8. An edge protection system as claimed in claim 7, wherein subsequent intersection modules are placed each with the respective indicator oriented in the same direction as for the first intersection module.
9. An edge protection system as claimed in any one of claims 1 to 8, wherein the ection module is arranged to allow for two-way, way and ay intersections to be formed without adjusting orientation of the intersection module.
10. An edge protection system as claimed in any one of claims 1 to 9, wherein the indicator is repeated on a plurality of assembly pieces of the intersection module to assist with ation of star picket guides to a common orientation.
11. An edge protection system as claimed in claim 10, wherein the indicator is repeated on an upper support plate and a lower support plate of a support column of the intersection module.
12. An edge protection system as claimed in any one of claims 1 to 11, wherein the first expandable armoured joint has a first joint line, the second expandable armoured joint has a second joint line, and wherein the intersection module provides a perimeter joint line such that there is a continuous joint line including the first joint line, the perimeter joint line and the second joint line.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2021204995 | 2021-07-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ790184A true NZ790184A (en) | 2022-07-29 |
Family
ID=
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1389648B1 (en) | Concrete floor slab | |
WO1997007290A1 (en) | Method for the fabrication of a dam or barrier | |
KR101290296B1 (en) | Stairway structure for approaching bridge inspection passage and constructing method thereof | |
WO2005003490A2 (en) | Rectangular tilt-up concrete tank construction | |
KR101684438B1 (en) | A bridge structure and construction method thereof | |
JP4669464B2 (en) | Sidewalk superstructure and construction method of sidewalk superstructure | |
NZ790184A (en) | An edge protection system – joint orientation marker | |
US20230061463A1 (en) | Joint edge protection apparatus - fully bridged wave plates | |
US20230020378A1 (en) | Armoured joint - disruptive folded anchor rail | |
US20230012370A1 (en) | Edge protection system - intersection continuous perimeter joint line | |
US20230052491A1 (en) | Edge protection system - floating cover plate on intersection | |
US20230009418A1 (en) | Armoured joint - anti-skew stake bracket | |
US20230011976A1 (en) | Edge protection system - joint orientation marker | |
NZ790167A (en) | An armoured joint – disruptive folded anchor rail | |
NZ790169A (en) | An edge protection system – floating cover plate on intersection | |
NZ790170A (en) | An edge protection system – intersection continuous perimeter joint line | |
NZ790163A (en) | A joint edge protection apparatus - fully bridged wave plates | |
NZ790194A (en) | An armoured joint – anti-skew stake bracket | |
KR101673070B1 (en) | Extended footbridge with continuous steel socket on slope | |
KR101731581B1 (en) | deck for slab | |
US10689811B2 (en) | System, apparatus and related method for raised ground cover mat | |
WO2007066387A1 (en) | Bridge construction method | |
US5335386A (en) | Bridge structure | |
JP6872674B1 (en) | Ground cover widening unit | |
KR102680017B1 (en) | Strut structrue for temporary facilities |