EP3111011B1 - A prefabricated movement joint system for concrete floors - Google Patents
A prefabricated movement joint system for concrete floors Download PDFInfo
- Publication number
- EP3111011B1 EP3111011B1 EP15707692.8A EP15707692A EP3111011B1 EP 3111011 B1 EP3111011 B1 EP 3111011B1 EP 15707692 A EP15707692 A EP 15707692A EP 3111011 B1 EP3111011 B1 EP 3111011B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- top edge
- rail
- edge rail
- floor slab
- concrete floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 2
- 238000009415 formwork Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000003000 extruded plastic Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/08—Packing of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/12—Packing of metal and plastic or elastic materials
- E01C11/126—Joints with only metal and prefabricated packing or filling
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/02—Arrangement or construction of joints; Methods of making joints; Packing for joints
- E01C11/04—Arrangement or construction of joints; Methods of making joints; Packing for joints for cement concrete paving
- E01C11/14—Dowel assembly ; Design or construction of reinforcements in the area of joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
- E04B1/483—Shear dowels to be embedded in concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/681—Sealings of joints, e.g. expansion joints for free moving parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
- E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
- E04F15/14—Construction of joints, e.g. dividing strips
- E04F15/142—Dividing strips or boundary strips
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2103/00—Material constitution of slabs, sheets or the like
- E04B2103/02—Material constitution of slabs, sheets or the like of ceramics, concrete or other stone-like material
Definitions
- the invention relates to prefabricated movement joint system as defined in the preamble of independent claim 1.
- This invention relates to the forming of concrete floor slabs, particularly to the forming of the edges of the slabs or arris's, also to providing protection of said edges, and improved means for load transfer between adjacent slabs.
- WO 2006/016133 A1 discloses a slab joint for use between two slabs of concrete set up accurately with the intended finished floor level prior to casting of the slabs.
- the joint has two plates rolled to a lazy Z form, having major webs, angled flanges and parallel minor flanges.
- the two opposed lazy Z plates create a void between their minor flanges which have opposing faces, which provides a pocket for elastomeric caulking material.
- the plates are held together by plastic bolts at the major flanges.
- Regularly spaced along the joint plates are anchorage arms stamped from the major flanges and bent out sideways from them to leave apertures. The ends of arms are provided with eyes to receive height adjustment legs.
- extension plate which separates the slabs.
- Plate has apertures in which are dowel plates.
- the joint is set up and concrete is poured in the adjacent slabs.
- the slab top L is level with the joint top.
- the anchorage arms hold the plates to the respective slabs on their side of the joint and the dowels are in place for resisting vertical movement of the slabs.
- the prefabricated movement joint system of the invention is characterized by the definitions of independent claim 1.
- the invention relates to a prefabricated movement joint system 2 such as an expansion joint system and/or a contraction joint system for a concrete floor slab arrangement.
- the prefabricated movement joint system is configured to be arranged in a joint (not marked with a reference numeral) to be formed between a first concrete floor slab 1a and a second concrete floor slab 1b when forming the first concrete floor slab 1a and the second concrete floor slab 1b by casting.
- the prefabricated movement joint system 2 comprises a first top edge rail 3a of metal or other material for providing edge protection in two planes for a first upper edge 15a of the first concrete floor slab 1a in the joint to be formed between the first concrete floor slab 1a and the second concrete floor slab 1b in the concrete floor slab arrangement.
- the prefabricated movement joint system 2 comprises a second top edge rail 3b of metal or other material for providing edge protection in two planes for a second upper edge 15b of the second concrete floor slab 1b in the joint to be formed between the first concrete floor slab 1a and the second concrete floor slab 1b in the concrete floor slab arrangement.
- the prefabricated movement joint system 2 comprises a divider plate 4 of metal or other material to be arranged in the joint to be formed at least partly between the first concrete floor slab 1a and the second concrete floor slab 1b in the concrete floor slab arrangement and at least partly between the first two top edge rail 3a and the second top edge rail 3a.
- the divider plate 4 of metal or other material may be formed with a plurality of first apertures 12 and second apertures 13 and embossed strengthening ridges 9.
- the divider plate 4 may be in the form of a height adjustable divider plate, which is lockable into several positions between the first top edge rail 3a and the second top edge rail 3b so as to adjust the height of the divider plate 4 for example in accordance with the thickness of the first concrete floor slab 1a and the second concrete floor slab 1b.
- the prefabricated movement joint system 2 may be manufactured in discrete lengths to suit or as required, and by virtue of the overlap shown, a plurality of the joints may be connected together in order to form the total desired length of joint.
- the drawings show a prefabricated movement joint system 2, suitable for use in forming concrete floor slabs 1a, 1b as shown in figure 1 .
- the prefabricated movement joint system 2 as shown in figure 8 comprises a first top edge rail 3a possible provided with formed first anchors 6a, a second top edge rail 3b possible provided with formed second anchors 6b, a divider plate 4 as shown in figure 8 possible provided with a plurality of yieldable fixings 5.
- the first top edge rail 3a and the second top edge rail 3b are preferably, as shown in the figures, elongate and can be provided in lengths and joined together and cut as required, comprising possible of a formed unequal angle, with the narrow plane facing uppermost to the top, and the other to the vertical, this angle being designed to provide armored protection to the edge of the first concrete floor slab 1a, or correspondingly, to the second concrete floor slab 1b.
- one of the first top edge rail 3a and the second top edge rail 3b of the prefabricated movement joint system 2 may be formed into an angle to provide edge protection to a part of the top face (not marked with a reference numeral) and to a part of the joint face (not marked with a reference numeral) of the first concrete floor slab 1a in the joint to be formed between a first concrete floor slab 1a and a second concrete floor slab 1b.
- one of the first top edge rail 3a and the second top edge rail 3b of the prefabricated movement joint system 2 may be formed into an angle to provide edge protection to a part of the top face and to a part of the joint face of the second concrete floor slab in the joint to be formed between a first concrete floor slab 1a and a second concrete floor slab 1b.
- the first top edge rail 3a of the movement joint system 2 has a plurality of first anchors 6a to embed and position the first top edge rail 3a in the first concrete floor slab 1a so that at by at least one first anchor 6a of said plurality of first anchors 6a has been formed from the parent metal of a vertical plane of the first top edge rail 3a, as opposed to being welded on or affixed by some other method.
- the second top edge rail 3b of the prefabricated movement joint system 2 may have a plurality of second anchors 6b to embed and position the second top edge rail 3b in the second concrete floor slab 1a so that at by at least one second anchor 6b of said plurality of anchors 6 has been formed from the parent metal of a vertical plane of the second top edge rail 3b, as opposed to being welded on or affixed by some other method.
- the first top edge rail 3a of the prefabricated movement joint system 2 comprises a first rail portion 16a and a second rail portion 17a.
- the first rail portion 16a of the first top edge rail 3a is to be arranged essentially parallel with a top face of the first concrete floor slab 1a.
- the second rail portion 17a of the first top edge rail 3a is to be arranged essentially parallel with a joint face (not marked with a reference numeral) facing the joint to be formed between the first concrete floor slab 1a and the second concrete floor slab 1b.
- the first rail portion 16a is provided in an essentially right angle in relation to the second rail portion 17a so that the first top edge rail 3a has an essentially L-shaped cross section form.
- the first top edge rail 3a has a plurality of first anchors 6a to be cast into concrete of the first concrete floor slab 1a to anchor the first top edge rail 3a in the first concrete floor slab 1a so that at least one first anchor 6a of said plurality of first anchors 6a has been formed by cutting and plastically deforming the material forming the second rail portion 17a of the first top edge rail 3a so that said at least one first anchor 6a is an integral part of the second rail portion 17a of the first top edge rail 3a and consist of material that has been used forming the second rail portion 17a of the first top edge rail 3a.
- the second top edge rail 3b of the prefabricated movement joint system 2 comprise a first rail portion 16b and a second rail portion 17b.
- the first rail portion 16b of the second top edge rail 3b is to be arranged essentially parallel with a top face of the second concrete floor slab 1b.
- the second rail portion 16b of the second top edge rail 3b is to be arranged essentially parallel with a joint face facing the joint to be formed between the first concrete floor slab 1a and the second concrete floor slab 1b.
- the first rail portion 16b is provided in an essentially right angle in relation to the second rail portion 17b so that the second top edge rail 3b has an essentially L-shaped cross section form.
- the second top edge rail 3b may have a plurality of second anchors 6b to be cast into concrete of the second concrete floor slab 1b and to anchor the second top edge rail 3b in the second concrete floor slab 1b, and at least one second anchor 6b of said plurality of second anchors 6b has been formed by cutting and plastically deforming the material forming the second rail portion 17b of the second top edge rail 3b so that said at least one second anchor 6b is an integral part of the second rail portion 17b of the second top edge rail 3b and consist of material that has been used forming the second rail portion 17b of the second top edge rail 3b.
- the first rail portion 16a of the first top edge rail 3a is in the form of an elongated flat sheet member having uniform thickness and the second rail portion 17a of the first top edge rail 3a is in the form of an elongated flat sheet member having uniform thickness so that the thickness of the first rail portion 16a of the first top edge rail 3a corresponds to the thickness of the second rail portion 17a of the first top edge rail 3a.
- the first top edge rail 3a have a plurality of first anchors 6a to be cast into concrete of the first concrete floor slab 1a to anchor the first top edge rail 3a in the first concrete floor slab 1a, so that by at least one first anchor 6a of said plurality of first anchors 6a has been formed by cutting and plastically deforming material forming the second rail portion 17a of the first top edge rail 3a so that said at least one first anchor 6a is an integral part of the second rail portion 17a of the first top edge rail 3a and consist of material that has been used forming the second rail portion 17a of the first top edge rail 3a, and so that the second rail portion 17a of the first top edge rail 3a has a first opening 18a through the second rail portion 17a of the first top edge rail 3a at the location said at least one first anchor 6a has been formed of material forming the second rail portion 17a of the first top edge rail 3a.
- the first opening 18a increases the strength of the connection between the first top edge rail 3a and the first concrete floor slab 1a and increases the sheer strength of the movement joint system.
- the dimensions and the shape of the first opening 18a the in second rail portion 17a of the first top edge rail 3a may correspond at least partly to the dimensions and the shape of said at least one first anchor 6a.
- the dimensions and the shape of the first opening 18a the in second rail portion 17a of the first top edge rail 3a may correspond essentially to the dimensions and the shape of said at least one first anchor 6a.
- said at least one first anchor 6a may have an elongated form, and said at least one first anchor 6a may have a thickness corresponding to the thickness of the second rail portion 17a of the first top edge rail 3a.
- Said at least one first anchor 6a has an at least partly teethed side edge such as an at least partly saw-toothed side edge.
- the first rail portion 16a of the first top edge rail 3a may be connected with the second rail portion 17a of the first top edge rail 3a by means of a first curved portion 19a of the first top edge rail 3a, wherein the thickness of the first curved portion 19a of the first top edge rail 3a corresponds to the thickness of the first rail portion 16a of the first top edge rail 3a and to the thickness of the second rail portion 17a of the first top edge rail 3a. Provision of a first curved portion 19a between the first rail portion 16a of the first top edge rail 3a and the second rail portion 17a of the first top edge rail 3a reduces impact damage for example to small fork truck wheels as opposed to sharp formed edges.
- the first rail portion 16b of the second top edge rail 3b is in the form of an elongated flat sheet member having uniform thickness
- the second rail portion 17b of the second top edge rail 3b is in the form of an elongated flat sheet member having uniform thickness, so that the thickness of the first rail portion 16b of the second top edge rail 3b corresponding to the thickness of the second rail portion 17b of the second top edge rail 3b.
- the second top edge rail 3b have a plurality of second anchors 6b to be cast into concrete of the second concrete floor slab 1b to anchor the second top edge rail 3b in the second concrete floor slab 1b, so that at least one second anchor 6b of said plurality of second anchors 6b has been formed by cutting and plastically deforming material forming the second rail portion 17a of the second top edge rail 3b so that said at least one second anchor 6b is an integral part of the second rail portion 17b of the second top edge rail 3b and consist of material that has been used forming the second rail portion 17b of the second top edge rail 3b, and so that the second rail portion 17b of the second top edge rail 3b has a second opening 18b through the second rail portion 17b of the second top edge rail 3b at the location said at least one second anchor 6b has been formed of material forming the second rail portion 17a of the second top edge rail 3b.
- the second opening 18b increases the strength of the connection between the first top edge rail 3a and the first concrete floor slab 1a and increases the sheer strength of the movement joint system.
- the dimensions and the shape of the second opening 18b the in second rail portion 17a of the second top edge rail 3b may correspond at least partly to the dimensions and the shape of said at least one second anchor 6b.
- the dimensions and the shape of the second opening 18b the in second rail portion 17b of the second top edge rail 3b may correspond essentially to the dimensions and the shape of said at least one second anchor 6b.
- said at least one second anchor 6b may have an elongated form, and said at least one second anchor 6b may have a thickness corresponding to the thickness of the second rail portion 17b of the second top edge rail 3b.
- said at least one second anchor 6b may have an at least partly teethed side edge such as an at least partly saw-toothed side edge.
- the first rail portion 16b of the second top edge rail 3b may be connected with the second rail portion 17b of the second top edge rail 3b by means of a second curved portion 19b of the second top edge rail 3b, wherein the thickness of the second curved portion 19b of the second top edge rail 3b corresponds to the thickness of the first rail portion 16b of the second top edge rail 3b and to the thickness of the second rail portion 17b of the second top edge rail 3b. Provision of a second curved portion 19a between the first rail portion 16b of the second top edge rail 3b and the second rail portion 17b of the second top edge rail 3b reduces impact damage for example to small fork truck wheels as opposed to sharp formed edges.
- At least one of the first top edge rail 3a and the second top edge rail 3b may be provided with a plurality of first apertures 12 for receiving the yieldable fixings 5 and/or with another plurality of second apertures 13 for receiving the height adjusting jack 11 as shown in figure 10 .
- the first top edge rail 3a and the second top edge rail 3b of the prefabricated movement joint system 2 may be fixable back to back with the yieldable fixings 5 thereby clamping into position the divider plate 4 and an optional extrusion 7 of plastic such as nylon or other material, as shown in figure 7 .
- the extrusion 7 serves two functions, firstly to keep out detritus from the curved depression and secondly to assist in smooth wheeled transition of the prefabricated movement joint system 2 once in situ.
- a plurality of shaped openings 8 may be provided along the length of the divider plate 4.
- the shaped openings 8 are of a generally squat and wide shape in order to permit dowels 14 such as circular, square, or plate dowels to extend there through, thereby permitting the use of a wide variety of dowels and load transfer mechanisms.
- divider plate 4 Another optional feature of the divider plate 4 is a plurality of slots 15 uppermost along the top edge, these slots are there to permit the passage of yieldable fixings 5 and height adjustment jacks 11 through the first top edge rail 3a and the second top edge rail 3b when the prefabricated movement joint system 2 is assembled for use.
- embossed straightening ridges 9 may be of any suitable shape or design as required.
- the aforementioned plate dowels and jack are the subject of separate patents and do not form a part of this application.
Description
- The invention relates to prefabricated movement joint system as defined in the preamble of independent claim 1.
- This invention relates to the forming of concrete floor slabs, particularly to the forming of the edges of the slabs or arris's, also to providing protection of said edges, and improved means for load transfer between adjacent slabs.
- Document
DE 20209995 U1 discloses concrete joint of a floor slab. - Document
WO 2006/016133 A1 discloses a slab joint for use between two slabs of concrete set up accurately with the intended finished floor level prior to casting of the slabs. The joint has two plates rolled to a lazy Z form, having major webs, angled flanges and parallel minor flanges. The two opposed lazy Z plates create a void between their minor flanges which have opposing faces, which provides a pocket for elastomeric caulking material. Initially the plates are held together by plastic bolts at the major flanges. Regularly spaced along the joint plates are anchorage arms stamped from the major flanges and bent out sideways from them to leave apertures. The ends of arms are provided with eyes to receive height adjustment legs. At the bottom of one of the plates is extension plate which separates the slabs. Plate has apertures in which are dowel plates. In use, the joint is set up and concrete is poured in the adjacent slabs. The slab top L is level with the joint top. The anchorage arms hold the plates to the respective slabs on their side of the joint and the dowels are in place for resisting vertical movement of the slabs. - It is well known that concrete floor slabs are cast inside a formwork, commonly constructed of either timber or steel. This formwork provides an edge and defines a space in which to cast the concrete, some types of formwork are removed once the concrete sets, and some are designed to remain in place for the life of the floor.
- Once cast, concrete slabs are prone to shrinkage during curing which causes the edges of the slabs to separate, and expose the upper edge or arris of each individual slab to damage from loads, such as lorries or fork trucks passing across the joint.
- Individual slabs often support heavy loads passing from one slab to another and therefore require a method of load transfer between adjacent slabs, in order to prevent breakdown of the joint between adjacent slabs, caused by stresses induced by such loads Typically round, square or plate dowels and sleeves are embedded in the concrete to extend at 90° across the formed joint, and connect the slabs together in order to facilitate the transfer of a load from one slab across the joint to another.
- Most available prefabricated joints are anchored into the concrete slabs by a plurality of Shear Studs which have been welded on either side of the top rails along their length, said welded studs present a potential consequential risk of failure at the weld, and can cause severe problems if they break off after the slab has been cast, making re-welding in situ extremely difficult.
- Many existing prefabricated joint manufacturers also produce a dowel and sleeve of their own specific design, and often manufacture their joint to be able to accommodate only their style of dowel or similar, other standard dowels may not fit the aperture provided in the divider plate.
- It is therefore an object of this invention to provide an improved prefabricated joint system which provides maximum protection to the newly formed joint edge in two planes as opposed to just one.
- The prefabricated movement joint system of the invention is characterized by the definitions of independent claim 1.
- Preferred embodiments of the prefabricated movement joint system are defined in the dependent claims.
- Embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which
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Figure 1 is a cross section of one embodiment of the prefabricated movement joint system according to the invention, forming a joint between a first concrete floor slab and a second concrete floor slab, -
Figure 2 is the same cross section of the prefabricated movement joint system as shown infigure 1 but with the addition of a proprietary plate dowel and sleeve to provide a load transfer mechanism, said dowel and sleeve are the subject of a separate patent, -
Figure 3 is a cross section of the prefabricated movement joint system as shown inFigure 2 once the slabs have cured, shrinkage has taken place and the joint opened, thereby shearing the yieldable fixings, -
Figure 4 is a detailed perspective view of the first top edge rail showing the formed angle and the anchors which are formed from the parent metal of the rail. This view also shows the apertures for the yieldable fixings and the Height Adjustment Jack, -
Figure 4 is a detailed perspective view of the second top edge rail showing the formed angle and the anchors which are formed from the parent metal of the rail. This view also shows the apertures for the yieldable fixings and the Height Adjustment Jack, -
Figure 6 is a perspective view of the divider plate showing at the top edge slots for the fixings and height adjustment jack spigot, a plurality of apertures along the length to accommodate most proprietary dowel types and load transfer systems, and a plurality of the embossed or raised strengthening ridges, which in this embodiment take the shape of a cross, but may be of any shape or size, -
Figure 7 shows a perspective view of the formed nylon or any similar plastic type material extrusion, which is located uppermost between the top edge rails and is secured in position by means of being clamped between the top edge rails, -
Figure 8 shows a perspective view of a assembled prefabricated movement joint system including top edge rails with formed angles and anchors, extruded plastic top strip, divider plate and yieldable fixings, -
Figure 9 shows an end sectional view of a prefabricated movement joint system including top edge rails with formed angles and anchors, extruded plastic top strip, divider plate and yieldable fixings, and -
Figure 10 shows a general perspective view of an assembled prefabricated movement joint system according to the invention, ready for use, as infigure 8 , but with the addition of Dowels and Sleeves, also included in this view is a Height Adjustment Jack. - The invention relates to a prefabricated movement
joint system 2 such as an expansion joint system and/or a contraction joint system for a concrete floor slab arrangement. - The prefabricated movement joint system is configured to be arranged in a joint (not marked with a reference numeral) to be formed between a first
concrete floor slab 1a and a secondconcrete floor slab 1b when forming the firstconcrete floor slab 1a and the secondconcrete floor slab 1b by casting. - The prefabricated
movement joint system 2 comprises a firsttop edge rail 3a of metal or other material for providing edge protection in two planes for a firstupper edge 15a of the firstconcrete floor slab 1a in the joint to be formed between the firstconcrete floor slab 1a and the second concrete floor slab 1b in the concrete floor slab arrangement. - The prefabricated
movement joint system 2 comprises a secondtop edge rail 3b of metal or other material for providing edge protection in two planes for a secondupper edge 15b of the secondconcrete floor slab 1b in the joint to be formed between the firstconcrete floor slab 1a and the secondconcrete floor slab 1b in the concrete floor slab arrangement. - The prefabricated
movement joint system 2 comprises adivider plate 4 of metal or other material to be arranged in the joint to be formed at least partly between the firstconcrete floor slab 1a and the secondconcrete floor slab 1b in the concrete floor slab arrangement and at least partly between the first twotop edge rail 3a and the secondtop edge rail 3a. - The
divider plate 4 of metal or other material may be formed with a plurality offirst apertures 12 andsecond apertures 13 and embossed strengthening ridges 9.Thedivider plate 4 may be in the form of a height adjustable divider plate, which is lockable into several positions between the firsttop edge rail 3a and the secondtop edge rail 3b so as to adjust the height of thedivider plate 4 for example in accordance with the thickness of the firstconcrete floor slab 1a and the secondconcrete floor slab 1b. - According to the invention as previously described above and shown in
figures 1 to 10 , the prefabricated movementjoint system 2 may be manufactured in discrete lengths to suit or as required, and by virtue of the overlap shown, a plurality of the joints may be connected together in order to form the total desired length of joint. - The drawings show a prefabricated
movement joint system 2, suitable for use in formingconcrete floor slabs figure 1 . The prefabricated movementjoint system 2 as shown infigure 8 comprises a firsttop edge rail 3a possible provided with formedfirst anchors 6a, a secondtop edge rail 3b possible provided with formedsecond anchors 6b, adivider plate 4 as shown infigure 8 possible provided with a plurality ofyieldable fixings 5. - The first
top edge rail 3a and the secondtop edge rail 3b are preferably, as shown in the figures, elongate and can be provided in lengths and joined together and cut as required, comprising possible of a formed unequal angle, with the narrow plane facing uppermost to the top, and the other to the vertical, this angle being designed to provide armored protection to the edge of the firstconcrete floor slab 1a, or correspondingly, to the secondconcrete floor slab 1b. - In the prefabricated movement
joint system 2 one of the firsttop edge rail 3a and the secondtop edge rail 3b of the prefabricatedmovement joint system 2 may be formed into an angle to provide edge protection to a part of the top face (not marked with a reference numeral) and to a part of the joint face (not marked with a reference numeral) of the firstconcrete floor slab 1a in the joint to be formed between a firstconcrete floor slab 1a and a secondconcrete floor slab 1b. - In the prefabricated
movement joint system 2 one of the firsttop edge rail 3a and the secondtop edge rail 3b of the prefabricatedmovement joint system 2 may be formed into an angle to provide edge protection to a part of the top face and to a part of the joint face of the second concrete floor slab in the joint to be formed between a firstconcrete floor slab 1a and a secondconcrete floor slab 1b. - The first
top edge rail 3a of the movementjoint system 2 has a plurality offirst anchors 6a to embed and position the firsttop edge rail 3a in the firstconcrete floor slab 1a so that at by at least onefirst anchor 6a of said plurality offirst anchors 6a has been formed from the parent metal of a vertical plane of the firsttop edge rail 3a, as opposed to being welded on or affixed by some other method. - In an embodiment of the prefabricated
movement joint system 2 the secondtop edge rail 3b of the prefabricatedmovement joint system 2 may have a plurality ofsecond anchors 6b to embed and position the secondtop edge rail 3b in the secondconcrete floor slab 1a so that at by at least onesecond anchor 6b of said plurality of anchors 6 has been formed from the parent metal of a vertical plane of the secondtop edge rail 3b, as opposed to being welded on or affixed by some other method. - The first
top edge rail 3a of the prefabricatedmovement joint system 2 comprises afirst rail portion 16a and asecond rail portion 17a. Thefirst rail portion 16a of the firsttop edge rail 3a is to be arranged essentially parallel with a top face of the firstconcrete floor slab 1a. Thesecond rail portion 17a of the firsttop edge rail 3a is to be arranged essentially parallel with a joint face (not marked with a reference numeral) facing the joint to be formed between the firstconcrete floor slab 1a and the secondconcrete floor slab 1b. Thefirst rail portion 16a is provided in an essentially right angle in relation to thesecond rail portion 17a so that the firsttop edge rail 3a has an essentially L-shaped cross section form. The firsttop edge rail 3a has a plurality offirst anchors 6a to be cast into concrete of the firstconcrete floor slab 1a to anchor the firsttop edge rail 3a in the firstconcrete floor slab 1a so that at least onefirst anchor 6a of said plurality offirst anchors 6a has been formed by cutting and plastically deforming the material forming thesecond rail portion 17a of the firsttop edge rail 3a so that said at least onefirst anchor 6a is an integral part of thesecond rail portion 17a of the firsttop edge rail 3a and consist of material that has been used forming thesecond rail portion 17a of the firsttop edge rail 3a. - In an embodiment of the prefabricated
movement joint system 2 the secondtop edge rail 3b of the prefabricatedmovement joint system 2 comprise afirst rail portion 16b and asecond rail portion 17b. Thefirst rail portion 16b of the secondtop edge rail 3b is to be arranged essentially parallel with a top face of the secondconcrete floor slab 1b. Thesecond rail portion 16b of the secondtop edge rail 3b is to be arranged essentially parallel with a joint face facing the joint to be formed between the firstconcrete floor slab 1a and the secondconcrete floor slab 1b. Thefirst rail portion 16b is provided in an essentially right angle in relation to thesecond rail portion 17b so that the secondtop edge rail 3b has an essentially L-shaped cross section form. In this embodiment of the prefabricatedmovement joint system 2 the secondtop edge rail 3b may have a plurality ofsecond anchors 6b to be cast into concrete of the secondconcrete floor slab 1b and to anchor the secondtop edge rail 3b in the secondconcrete floor slab 1b, and at least onesecond anchor 6b of said plurality ofsecond anchors 6b has been formed by cutting and plastically deforming the material forming thesecond rail portion 17b of the secondtop edge rail 3b so that said at least onesecond anchor 6b is an integral part of thesecond rail portion 17b of the secondtop edge rail 3b and consist of material that has been used forming thesecond rail portion 17b of the secondtop edge rail 3b. Thefirst rail portion 16a of the firsttop edge rail 3a is in the form of an elongated flat sheet member having uniform thickness and thesecond rail portion 17a of the firsttop edge rail 3a is in the form of an elongated flat sheet member having uniform thickness so that the thickness of thefirst rail portion 16a of the firsttop edge rail 3a corresponds to the thickness of thesecond rail portion 17a of the firsttop edge rail 3a. The firsttop edge rail 3a have a plurality offirst anchors 6a to be cast into concrete of the firstconcrete floor slab 1a to anchor the firsttop edge rail 3a in the firstconcrete floor slab 1a, so that by at least onefirst anchor 6a of said plurality offirst anchors 6a has been formed by cutting and plastically deforming material forming thesecond rail portion 17a of the firsttop edge rail 3a so that said at least onefirst anchor 6a is an integral part of thesecond rail portion 17a of the firsttop edge rail 3a and consist of material that has been used forming thesecond rail portion 17a of the firsttop edge rail 3a, and so that thesecond rail portion 17a of the firsttop edge rail 3a has afirst opening 18a through thesecond rail portion 17a of the firsttop edge rail 3a at the location said at least onefirst anchor 6a has been formed of material forming thesecond rail portion 17a of the firsttop edge rail 3a. Thefirst opening 18a increases the strength of the connection between the firsttop edge rail 3a and the firstconcrete floor slab 1a and increases the sheer strength of the movement joint system. The dimensions and the shape of thefirst opening 18a the insecond rail portion 17a of the firsttop edge rail 3a may correspond at least partly to the dimensions and the shape of said at least onefirst anchor 6a. Alternatively, the dimensions and the shape of thefirst opening 18a the insecond rail portion 17a of the firsttop edge rail 3a may correspond essentially to the dimensions and the shape of said at least onefirst anchor 6a. In this embodiment, said at least onefirst anchor 6a may have an elongated form, and said at least onefirst anchor 6a may have a thickness corresponding to the thickness of thesecond rail portion 17a of the first top edge rail 3a. Said at least onefirst anchor 6a has an at least partly teethed side edge such as an at least partly saw-toothed side edge. In this embodiment, thefirst rail portion 16a of the firsttop edge rail 3a may be connected with thesecond rail portion 17a of the firsttop edge rail 3a by means of a firstcurved portion 19a of the firsttop edge rail 3a, wherein the thickness of the firstcurved portion 19a of the firsttop edge rail 3a corresponds to the thickness of thefirst rail portion 16a of the firsttop edge rail 3a and to the thickness of thesecond rail portion 17a of the firsttop edge rail 3a. Provision of a firstcurved portion 19a between thefirst rail portion 16a of the firsttop edge rail 3a and thesecond rail portion 17a of the firsttop edge rail 3a reduces impact damage for example to small fork truck wheels as opposed to sharp formed edges. - In an embodiment of the prefabricated movement joint system, the
first rail portion 16b of the secondtop edge rail 3b is in the form of an elongated flat sheet member having uniform thickness, and thesecond rail portion 17b of the secondtop edge rail 3b is in the form of an elongated flat sheet member having uniform thickness, so that the thickness of thefirst rail portion 16b of the secondtop edge rail 3b corresponding to the thickness of thesecond rail portion 17b of the secondtop edge rail 3b. In this embodiment the secondtop edge rail 3b have a plurality ofsecond anchors 6b to be cast into concrete of the secondconcrete floor slab 1b to anchor the secondtop edge rail 3b in the secondconcrete floor slab 1b, so that at least onesecond anchor 6b of said plurality ofsecond anchors 6b has been formed by cutting and plastically deforming material forming thesecond rail portion 17a of the secondtop edge rail 3b so that said at least onesecond anchor 6b is an integral part of thesecond rail portion 17b of the secondtop edge rail 3b and consist of material that has been used forming thesecond rail portion 17b of the secondtop edge rail 3b, and so that thesecond rail portion 17b of the secondtop edge rail 3b has asecond opening 18b through thesecond rail portion 17b of the secondtop edge rail 3b at the location said at least onesecond anchor 6b has been formed of material forming thesecond rail portion 17a of the secondtop edge rail 3b. Thesecond opening 18b increases the strength of the connection between the firsttop edge rail 3a and the firstconcrete floor slab 1a and increases the sheer strength of the movement joint system. The dimensions and the shape of thesecond opening 18b the insecond rail portion 17a of the secondtop edge rail 3b may correspond at least partly to the dimensions and the shape of said at least onesecond anchor 6b. Alternatively the dimensions and the shape of thesecond opening 18b the insecond rail portion 17b of the secondtop edge rail 3b may correspond essentially to the dimensions and the shape of said at least onesecond anchor 6b. In this embodiment, said at least onesecond anchor 6b may have an elongated form, and said at least onesecond anchor 6b may have a thickness corresponding to the thickness of thesecond rail portion 17b of the secondtop edge rail 3b. In this embodiment said at least onesecond anchor 6b may have an at least partly teethed side edge such as an at least partly saw-toothed side edge. In this embodiment thefirst rail portion 16b of the secondtop edge rail 3b may be connected with thesecond rail portion 17b of the secondtop edge rail 3b by means of a secondcurved portion 19b of the secondtop edge rail 3b, wherein the thickness of the secondcurved portion 19b of the secondtop edge rail 3b corresponds to the thickness of thefirst rail portion 16b of the secondtop edge rail 3b and to the thickness of thesecond rail portion 17b of the secondtop edge rail 3b. Provision of a secondcurved portion 19a between thefirst rail portion 16b of the secondtop edge rail 3b and thesecond rail portion 17b of the secondtop edge rail 3b reduces impact damage for example to small fork truck wheels as opposed to sharp formed edges. - At least one of the first
top edge rail 3a and the secondtop edge rail 3b may be provided with a plurality offirst apertures 12 for receiving theyieldable fixings 5 and/or with another plurality ofsecond apertures 13 for receiving theheight adjusting jack 11 as shown infigure 10 . - The first
top edge rail 3a and the secondtop edge rail 3b of the prefabricated movementjoint system 2 may be fixable back to back with theyieldable fixings 5 thereby clamping into position thedivider plate 4 and anoptional extrusion 7 of plastic such as nylon or other material, as shown infigure 7 . Theextrusion 7 serves two functions, firstly to keep out detritus from the curved depression and secondly to assist in smooth wheeled transition of the prefabricated movementjoint system 2 once in situ. - A plurality of shaped openings 8 may be provided along the length of the
divider plate 4. The shaped openings 8 are of a generally squat and wide shape in order to permitdowels 14 such as circular, square, or plate dowels to extend there through, thereby permitting the use of a wide variety of dowels and load transfer mechanisms. - Another optional feature of the
divider plate 4 is a plurality ofslots 15 uppermost along the top edge, these slots are there to permit the passage ofyieldable fixings 5 and height adjustment jacks 11 through the firsttop edge rail 3a and the secondtop edge rail 3b when the prefabricated movementjoint system 2 is assembled for use. - In order to strengthen the
divider plate 4 to resist the flow of concrete being poured against it a plurality of embossed straighteningridges 9 as shown infigure 6 are formed, said embossed straighteningridges 9 may be of any suitable shape or design as required. - A view of the complete prefabricated movement
joint system 2 or assembly ready for use, including plate dowels and sleeves 10 also aheight adjusting jack 11 can be viewed infigure 10 . The aforementioned plate dowels and jack are the subject of separate patents and do not form a part of this application.
Claims (24)
- A prefabricated movement joint system for a concrete floor slab arrangement, wherein the prefabricated movement joint system (2) is configured to be arranged in a joint to be formed between a first concrete floor slab (1a) and a second concrete floor slab (1b) in the concrete floor slab arrangement, the prefabricated movement joint system (2) comprising
a first top edge rail (3a) of metal or other material for providing edge protection in two planes for a first upper edge (15a) of the first concrete floor slab (1a) in the joint to be formed between the first concrete floor slab (1a) and the second concrete floor slab (1b) in the concrete floor slab arrangement
a second top edge rail (3b) of metal or other material for providing edge protection in two planes for a second upper edge (15b) of the second concrete floor slab (1b) in the joint to be formed between the first concrete floor slab (1a) and the second concrete floor slab (1b) in the concrete floor slab arrangement, and
a divider plate (4) of metal or other material to be arranged in the joint to be formed at least partly between the first concrete floor slab (1a) and the second concrete floor slab (1b) in the concrete floor slab arrangement and at least partly between the first top edge rail (3a) and the second top edge rail (3b),
wherein
the first top edge rail (3a) of the prefabricated movement joint system (2) comprises a first rail portion (16a) and a second rail portion (17a), wherein the first rail portion (16a) of the first top edge rail (3a) is to be arranged essentially parallel with a top face of the first concrete floor slab (1a), and wherein the second rail portion (17a) of the first top edge rail (3a) is to be arranged essentially parallel with a joint face facing the joint to be formed between the first concrete floor slab (1a) and the second concrete floor slab (1b),
the first rail portion (16a) is provided in an essentially right angle in relation to the second edge rail portion (17a) so that the first top edge rail (3a) has an essentially L-shaped cross section form,
the first rail portion (16a) of the first top edge rail (3a) is in the form of an elongated flat sheet member having uniform thickness,
the second rail portion (17a) of the first top edge rail (3a) is in the form of an elongated flat sheet member having uniform thickness,
the thickness of the first rail portion (16a) of the first top edge rail (3a) corresponding to the thickness of the second rail portion (17a) of the first top edge rail (3a), and
the first top edge rail (3a) have a plurality of first anchors (6a) to be cast into concrete of the first concrete floor slab (1a) to anchor the first top edge rail (3a) in the first concrete floor slab (1a),
characterized in that
at least one first anchor (6a) of said plurality of first anchors (6a) has been formed by cutting and plastically deforming material forming the second rail portion (17a) of the first top edge rail (3a) so that said at least one first anchor (6a) is an integral part of the second rail portion (17a) of the first top edge rail (3a) and consist of material that has been used forming the second rail portion (17a) of the first top edge rail (3a), and so that the second rail portion (17a) of the first top edge rail (3a) has a first opening (18a) through the second rail portion (17a) of the first top edge rail (3a) at the location said at least one first anchor (6a) has been formed of material forming the second rail portion (17a) of the first top edge rail (3a), and
said at least one first anchor (6a) has an at least partly teethed side edge such as an at least partly saw-toothed side edge. - The prefabricated movement joint system according to claim 1, characterized
by the dimensions and the shape of the first opening (18a) in the second rail portion (17a) of the first top edge rail (3a) corresponds at least partly to the dimensions and the shape of said at least one first anchor (6a). - The prefabricated movement joint system according to claim 1, characterized
by the dimensions and the shape of the first opening (18a) in the second rail portion (17a) of the first top edge rail (3a) corresponds essentially to the dimensions and the shape of said at least one first anchor (6a). - The prefabricated movement joint system according to any of the claims 1 to 3, characterized
by said at least one first anchor (6a) having an elongated form, and
by said at least one first anchor (6a) having a thickness corresponding to the thickness of the second rail portion (17a) of the first top edge rail (3a). - The prefabricated movement joint system according to any of the claims 1 to 4, characterized
by the first rail portion (16a) of the first top edge rail (3a) being connected with the second rail portion (17a) of the first top edge rail (3a) by means of a first curved portion (19a) of the first top edge rail (3a), and
by the thickness of the first curved portion (19a) of the first top edge rail (3a) corresponding to the thickness of the first rail portion (16a) of the first top edge rail (3a) and to the thickness of the second rail portion (17a) of the first top edge rail (3a). - The prefabricated movement joint system according to any of the claims 1 to 5, characterized
by the second top edge rail (3b) of the prefabricated movement joint system (2) comprise a first rail portion (16b) and a second rail portion (17b), wherein the first rail portion (16b) of the second top edge rail (3b) is to be arranged essentially parallel with a top face of the second concrete floor slab (1b), and wherein the second rail portion (17b) of the second top edge rail (3b) is to be arranged essentially parallel with a joint face facing the joint to be formed between the first concrete floor slab (1a) and the second concrete floor slab (1b), and
by the first rail portion (16b) is provided in an essentially right angle in relation to the second rail portion (17b) so that the second top edge rail (3b) has an essentially L-shaped cross section form. - The prefabricated movement joint system according to claim 6, characterized
by the second top edge rail (3b) have a plurality of second anchors (6b) to be cast into concrete of the second concrete floor slab (1b) and to anchor the second top edge rail (3b) in the second concrete floor slab (1b), and
by at least one second anchor (6b) of said plurality of second anchors (6b) has been formed by cutting and plastically deforming the material forming the second rail portion (17b) of the second top edge rail (3b) so that said at least one second anchor (6b) is an integral part of the second rail portion (17b) of the second top edge rail (3b) and consist of material that has been used forming the second rail portion (17b) of the second top edge rail (3b). - The prefabricated movement joint system according to claim 6, characterized
by the first rail portion (16b) of the second top edge rail (3b) is in the form of an elongated flat sheet member having uniform thickness,
by the second rail portion (17b) of the second top edge rail (3b) is in the form of an elongated flat sheet member having uniform thickness,
by the thickness of the first rail portion (16b) of the second top edge rail (3b) corresponding to the thickness of the second rail portion (17b) of the second top edge rail (3b),
by the second top edge rail (3b) have a plurality of second anchors (6b) to be cast into concrete of the second concrete floor slab (1b) to anchor the second top edge rail (3b) in the second concrete floor slab (1b), and
by at least one second anchor (6b) of said plurality of second anchors (6b) has been formed by cutting and plastically deforming material forming the second rail portion (17b) of the second top edge rail (3b) so that said at least one second anchor (6b) is an integral part of the second rail portion (17b) of the second top edge rail (3b) and consist of material that has been used forming the second rail portion (17b) of the second top edge rail (3b), and so that the second rail portion (17b) of the second top edge rail (3b) has a second opening (18b) through the second rail portion (17b) of the second top edge rail (3b) at the location said at least one second anchor (6b) has been formed of material forming the second rail portion (17b) of the second top edge rail (3b). - The prefabricated movement joint system according to claim 8, characterized
by the dimensions and the shape of the second opening (18b) in the second rail portion (17b) of the second top edge rail (3b) corresponds at least partly to the dimensions and the shape of said at least one second anchor (6b). - The prefabricated movement joint system according to claim 8, characterized
by the dimensions and the shape of the second opening (18b) in the second rail portion (17b) of the second top edge rail (3b) corresponds essentially to the dimensions and the shape of said at least one second anchor (6b). - The prefabricated movement joint system according to any of the claims 8 to 10, characterized
by said at least one second anchor (6b) having an elongated form, and
by said at least one second anchor (6b) having a thickness corresponding to the thickness of the second rail portion (17b) of the second top edge rail (3b). - The prefabricated movement joint system according to any of the claims 8 to 11, characterized by said at least one second anchor (6b) having an at least partly teethed side edge such as an at least partly saw-toothed side edge.
- The prefabricated movement joint system according to any of the claims 8 to 12, characterized
by the first rail portion (16b) of the second top edge rail (3b) being connected with the second rail portion (17b) of the second top edge rail (3b) by means of a second curved portion (19b) of the second top edge rail (3b),
by the thickness of the second curved portion (19b) of the second top edge rail (3b) corresponding to the thickness of the first rail portion (16b) of the second top edge rail (3b) and to the thickness of the second rail portion (17b) of the second top edge rail (3b). - The prefabricated movement joint system according to any of the claims 1 to 13, characterized by at least one of the first top edge rail (3a) and the second top edge rail (3b) have a plurality of second apertures (13) to suit yieldable fixings and height adjustment jacks (11).
- The prefabricated movement joint system according to any of the claims 1 to 14, characterized by comprising a plurality of first apertures (12) for receiving low tensile yieldable fixings (5) for holding the first top edge rail (3a) and the second top edge rail (3b) in position with respect to each other.
- The prefabricated movement joint system according to claim 15, characterized by the yieldable fixings (5) being variable to suit the strength and design of the concrete floor slabs (1).
- The prefabricated movement joint system according to any of the claim 1 to 16, characterized by comprising a divider plate (4) in the form of a height adjustable divider plate, which is lockable into position between the first top edge rail (3a) and the second top edge rail (3b).
- The prefabricated movement joint system according to any of the claims 1 to 17, characterized by the divider plate (4) have a plurality of shaped apertures (8) to accommodate dowels (14) or corresponding load transfer systems arranged to transfer loads between the first concrete floor slab (1a) and the second concrete floor slab (1b).
- The prefabricated movement joint system according to any of the claims 1 to 18, characterized by the divider plate (4) having a plurality of embossed or raised ridges (9) for the purpose of strengthening the divider plate (4).
- The prefabricated movement joint system according to any of the claims 1 to 19, characterized by comprising an extrusion (7) of a nylon or similar plastic type material, shaped to suit a curved depression between the first top edge rail (3a) and the second top edge rail (3b).
- The prefabricated movement joint system according to claim 20, characterized by the extrusion (7) can be clamped into position between the first top edge rail (3a) and the second top edge rail (3b), thereby preventing detritus from filling the depression and assisting in the smooth transition of wheeled traffic across the joint.
- The prefabricated movement joint system according to any of the claims 1 to 21, characterized by at least one of the first top edge rail (3a) and the second top edge rail (3b) comprises a plurality of second apertures (13) for receiving height adjustment jacks (11) or other similar accessories.
- The prefabricated movement joint system according to any of the claims 1 to 22, characterized by can be manufactured in discrete lengths and coupled together to provide the total desired length of joint.
- The prefabricated movement joint system according to any of the claims 1 to 23, characterized by can be supplied for use either fully assembled or in Kit Form, for assembly by others.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15707692T PL3111011T3 (en) | 2014-02-14 | 2015-02-13 | A prefabricated movement joint system for concrete floors |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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FI20145148A FI125421B (en) | 2014-02-14 | 2014-02-14 | Prefabricated joint joints for concrete floors |
AU2014201090A AU2014201090A1 (en) | 2014-02-14 | 2014-02-28 | A prefabricated movement joint system for concrete floors |
NZ621895A NZ621895B (en) | 2014-02-14 | 2014-02-28 | A prefabricated movement joint system for concrete floors |
PCT/FI2015/050088 WO2015121538A1 (en) | 2014-02-14 | 2015-02-13 | A prefabricated movement joint system for concrete floors |
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EP3111011A1 EP3111011A1 (en) | 2017-01-04 |
EP3111011B1 true EP3111011B1 (en) | 2019-05-22 |
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EP15707692.8A Active EP3111011B1 (en) | 2014-02-14 | 2015-02-13 | A prefabricated movement joint system for concrete floors |
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EP (1) | EP3111011B1 (en) |
AU (2) | AU2014201090A1 (en) |
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AU2018226394A1 (en) | 2017-10-13 | 2019-05-02 | Illinois Tool Works Inc. | Edge protection system having clip retainment |
AU2018226389A1 (en) | 2017-10-13 | 2019-05-02 | Illinois Tool Works Inc. | Edge protection system having bridging pins |
AU2018226393A1 (en) | 2017-10-13 | 2019-05-02 | Illinois Tool Works Inc. | Edge protection system with intersection module |
AU2018226392A1 (en) | 2017-10-13 | 2019-05-02 | Illinois Tool Works Inc. | Edge protection system having dowel plate |
AU2018226390A1 (en) | 2017-10-13 | 2019-05-02 | Illinois Tool Works Inc. | Edge protection system having retaining clip |
AU2018226391A1 (en) | 2017-10-13 | 2019-05-02 | Illinois Tool Works Inc. | Edge protection system having support foot |
CN109083320A (en) * | 2018-09-26 | 2018-12-25 | 重庆普珞沃建筑科技有限公司 | Combine prefabricated panel and laminated floor slab structure and laminated floor slab construction method |
AU2019264633A1 (en) | 2018-11-19 | 2020-06-04 | Illinois Tool Works Inc. | Support bracket |
CN110397198B (en) * | 2019-07-30 | 2021-01-29 | 中山建华墙体材料有限公司 | Assembled precast concrete floor |
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2014
- 2014-02-14 FI FI20145148A patent/FI125421B/en not_active IP Right Cessation
- 2014-02-28 AU AU2014201090A patent/AU2014201090A1/en not_active Abandoned
-
2015
- 2015-02-13 EP EP15707692.8A patent/EP3111011B1/en active Active
- 2015-02-13 AU AU2015216827A patent/AU2015216827B2/en not_active Ceased
- 2015-02-13 EA EA201691583A patent/EA029728B1/en not_active IP Right Cessation
- 2015-02-13 US US15/113,322 patent/US20170009446A1/en not_active Abandoned
- 2015-02-13 PL PL15707692T patent/PL3111011T3/en unknown
- 2015-02-13 PT PT15707692T patent/PT3111011T/en unknown
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
FI125421B (en) | 2015-10-15 |
PL3111011T3 (en) | 2020-02-28 |
PT3111011T (en) | 2019-09-10 |
AU2015216827A1 (en) | 2016-07-14 |
AU2014201090A1 (en) | 2015-09-03 |
US20170009446A1 (en) | 2017-01-12 |
EA201691583A1 (en) | 2017-01-30 |
EP3111011A1 (en) | 2017-01-04 |
NZ621895A (en) | 2015-03-27 |
EA029728B1 (en) | 2018-05-31 |
AU2015216827B2 (en) | 2019-03-07 |
FI20145148A (en) | 2015-08-15 |
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