EP2045395A2 - Elément de plancher - Google Patents

Elément de plancher Download PDF

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Publication number
EP2045395A2
EP2045395A2 EP20080161244 EP08161244A EP2045395A2 EP 2045395 A2 EP2045395 A2 EP 2045395A2 EP 20080161244 EP20080161244 EP 20080161244 EP 08161244 A EP08161244 A EP 08161244A EP 2045395 A2 EP2045395 A2 EP 2045395A2
Authority
EP
European Patent Office
Prior art keywords
edge profile
anchoring
floor element
profile
concrete slab
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.)
Withdrawn
Application number
EP20080161244
Other languages
German (de)
English (en)
Inventor
Ludovicus Franciscus Maria Van Kimmenade
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wernink Beton BV
Original Assignee
Wernink Beton BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wernink Beton BV filed Critical Wernink Beton BV
Publication of EP2045395A2 publication Critical patent/EP2045395A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E01C5/00—Pavings made of prefabricated single units
    • E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
    • E01C5/08—Reinforced units with steel frames

Definitions

  • the present invention relates to a floor element comprising a substantially flat concrete slab and an edge profile attached along the side edges of the concrete slab and protecting a peripheral edge thereof, as well as an anchoring means for anchoring the edge profile in the concrete slab.
  • the invention also relates to a floor composed of such rectangular concrete slabs positioned adjacent to each other.
  • Concrete slabs used for the temporary or (semi-) permanent hardening of a foundation are known in the prior art and comprise a number of separate concrete slabs placed adjacent to each other on the substrate.
  • the concrete slabs are simply placed on or removed from the substrate, for example, by providing the slabs with gripping points for a hoisting crane that can hoist the slabs up or let them down, or by using vacuum apparatus.
  • Such slabs are known, among others, by the name "Stelcon® slabs” and are described, for example, in the document DE 8.903.721 U .
  • Such slabs have been applied for several decades for the hardening of industrial terrains, by transport companies and transshipment companies, and in building projects and the like.
  • an angle-steel frame is attached along the side edges or the top and side edges of the slab in order to protect the uppermost edges of the slabs during operation, as well as to protect the floor in use, for example, against the effects of vehicles driving over the slabs.
  • the frame is manufactured from steel with a thickness of typically more than 3 mm.
  • the frame is affixed to the concrete slab by a large number of anchors welded to the edge of the frame and cast into the concrete of the concrete slab.
  • One drawback of the known slabs is that the frame is manufactured from a relatively thick material, which is not only expensive but also increases the weight of the floor slab (the frame mass is approximately 20 kg or more). This drawback is further increased by the steel anchors that need to be welded separately to the frame.
  • An objective of the present invention is to provide a floor slab and a subfloor comprising such floor slabs which eliminates the above-mentioned drawbacks. It is also an objective of the present invention to produce a floor slab and a subfloor comprising such floor slabs which is provided with a frame that is relatively light, has a relatively high tensile strength and can be well anchored in the concrete slab.
  • a floor element comprising a substantially flat concrete slab and an edge profile attached along the side edges or the sides and upper edges of the concrete slab, thus providing protection of a peripheral edge thereof, as well as anchoring means for anchoring the edge profile in the concrete slab, in which the anchoring means are formed by at least two anchoring flanges extending in the longitudinal direction of the edge profile, wherein the edge profile comprises two profile parts formed substantially at a right angle relative to each other, the longitudinal ends of which profile parts are bent towards each other in order to provide anchoring flanges, and in that at least one of the anchoring flanges comprises a part adjacent to the part that is bent inwardly, the first part of which being bent outwards or inwards relative to the inwardly bent part.
  • one of the anchoring flanges can be provided with such an adjacent part, but in other embodiments each of the anchoring flanges is composed of such an adjacent part.
  • the anchoring flanges have a dual effect. On the one hand they increase the constructive strength of the edge profile so that an edge profile with a small material thickness would suffice (typically between 0.8 mm and 2 mm, in some cases between 2 mm and 3 mm, instead of the customary greater thickness), and on the other hand they ensure a good anchoring of the edge profile in the concrete slab in that the known point anchoring method is replaced by linear anchoring.
  • the anchoring flanges are composed of sheet steel, preferably with the aforementioned thickness of between 0.8 and 2 mm. Sheet steel can be readily bent, thus enabling the profiles to be formed in a relatively simple manner with the first bent part and the corresponding second bent part.
  • the edge profile preferably extends only to the upper edge of the concrete slab. Therefore, in this embodiment the edge profile does not extend up to or beyond the lower edge of the concrete slab. Nevertheless, the anchoring flanges ensure sufficient anchoring of the edge profile on the concrete slab.
  • the anchoring flanges are formed by inwardly bent longitudinal edges of the edge profile. It appears that the inwardly bent longitudinal edges cause improved anchoring of the profiles on the concrete slab. Such anchoring flanges are relatively easy to realize. An even better anchoring method can be achieved when at least one of the anchoring flanges is provided with a further adjacent part, for example, by outwardly or inwardly bending the adjacent part relative to the anchoring flange so that the portion has a different position relative to the rest of the profile.
  • At least one of the anchoring flanges comprises a first, inwardly bent part and a second part adjacent to the first part, the second part being bent outwards relative to the first part.
  • the second part thus ensures improved anchoring without reducing accessibility.
  • the edge profile comprises two profile parts formed essentially at a right angle relative to each other, the longitudinal ends of which are bent towards one another in order to provide anchoring flanges.
  • the angle ( ⁇ ) between a profile part and the corresponding bent anchoring flange lies between approximately 30 and 135 degrees, preferably between 45 and 90 degrees.
  • the edge profile consists essentially of one piece and is provided with hinge means.
  • the hinge means are formed, for example, by a number of slits in the profile part.
  • the profile can be readily formed into the desired shape by bending the side wall.
  • the edge profile is divided into four parts.
  • the edge profile can then be provided, for example, at three different positions with such hinge means in order for the four parts of the edge profile to form a single rectangular part.
  • the fastening means for the fastening of the ends of the edge profile to each other can be embodied, for example, to provide a 'click'-engagement.
  • pop rivets are used to fasten the ends of the edge profile or at least parts of the edge profile to each other.
  • a floor element comprising an essentially flat, rectangular concrete slab and an edge profile affixed along the four edges or sides and upper edges of the concrete slab, thus protecting a peripheral edge thereof, as well as anchoring means for anchoring the edge profile in the concrete slab, the edge profile of which comprises:
  • edge profile elements can be coupled with each other without a welding connection being required.
  • the fastening means for the coupling of the coupling elements to the respective edge profile elements are preferably embodied in such a manner that they are formed on the edge profile elements and coupling elements, so that separate customary fastening parts such as bolts and nuts, for example, are no longer necessary.
  • the fastening means comprise a resilient lip affixed to a coupling element which is embodied to rest within a recess in the edge profile element which corresponds to the lip.
  • a "click" engagement can be established between the coupling element and the edge profile elements by sliding the coupling elements into the proper edge profile elements until the lip falls into place in the corresponding opening.
  • the resilient lip can also be provided on the edge profile element and the openings in the coupling element.
  • the edge profile element consists of one piece that is cut in such a manner at a number of positions (for example, at three positions in the case of a rectangular floor slab and at two positions in the case of a triangular floor slab) that it can be pivoted to certain positions relative to each other in order to bring the edge profile into the desired (that is, rectangular or triangular) configuration.
  • openings are provided in at least one of the anchoring flanges in which concrete can be poured during the manufacture of the floor slabs, thus enabling the further anchoring of the flanges to the concrete slab.
  • Figures 1 and 2 show a floor slab 1 according to one embodiment of the invention.
  • the slab is composed of a reinforced or non-reinforced concrete slab 2 on the uppermost peripheral edges to which an edge profile 3 is attached.
  • floor slab 1 has a rectangular shape (with typical dimensions of length 200 cm, width 200 cm and height 12 cm, 14 cm, 16 cm, 18 cm or 20 cm, or, of course, any other conceivable dimensions), although other polygonal shapes are also conceivable.
  • the concrete slab 2 is not provided with a means of reinforcement, but in other embodiments that are not shown the concrete is reinforced, for example, by placing one or more reinforcement mats therein.
  • the concrete slab may consist of gravel-based concrete having a wear-resistant upper layer, but the use of concrete with a different composition is also possible.
  • the edge profiles 3 are manufactured from metal, for example, from rolled sheet steel, or plastic.
  • Such floor slabs with an angle-steel frame are particularly well-suited for the temporary or permanent hardening of a foundation.
  • the floor slabs are provided, in a known manner, with hoisting bars to enable the slabs to be lifted and transported.
  • hoisting bars to enable the slabs to be lifted and transported.
  • hoisting bars there are also other embodiments without hoisting bars, whereby laying work is performed, for example, with the use of vacuum apparatus.
  • a floor is composed of a number of floor slabs placed side by side with spacing in between the slabs in the region of between 0.5 cm to 2 cm.
  • FIG. 3 shows a first embodiment of an edge profile 3 according to the present invention.
  • the edge profile 3 is composed of a horizontally positioned profile part 4 and a vertically positioned profile part 5 arranged at a right angle thereof.
  • anchors fastened to profile parts 4 and 5 as would otherwise be customary in such cases, so that the means of anchoring must be achieved in a different manner.
  • anchoring is achieved by bending the longitudinal edges of profile parts 4 and 5 somewhat in order to form respective anchoring flanges 8 and 9. By applying an appropriate degree of bend to the longitudinal edges and by choosing anchoring flanges of a satisfactory width, sufficient concrete remains in place behind the flanges to ensure a strong anchoring of the profile of concrete slab 2.
  • the longitudinal edges are bent along the entire length of the profile and in other embodiments the profile parts are bent only along a part of the length.
  • the angle ⁇ 1 between the horizontal profile 4 and the protruding flange 8 and the angle ⁇ 2 between the vertical profile 5 and the upright flange 9 is the same as in the embodiment shown and lies within the range of between 30 to 135 degrees, preferably between 45 and 90 degrees. In this way, a good anchoring of the profile is achieved.
  • a third embodiment of the invention may be applied, as is illustrated in figures 5-7 .
  • the third embodiment is, to a large extent, quite similar to the second embodiment but differs in that further flange parts 12 and 13 are attached to flanges 10 and 11.
  • the angle ⁇ ( figure 5 ) must be greater than 90 degrees, preferably between 120 and 150 degrees in order not to hinder the supply of concrete during the manufacturing process.
  • the spacing d 3 can be the same as the spacing d 2 shown in figure 4 , so as to enable a good filling.
  • flanges 10 and 11 are widened, an improved anchoring of the profile can also be achieved.
  • FIGS 6 and 7 show that respective openings 17 and 16 are positioned in anchoring flanges 10, 11, i.e. in the parts directly engaging profile parts 4 and 5 thereof and/or in the opposite parts 12 and 13 thereof.
  • concrete may remain in openings 16, 17 which will result, after hardening, in a further anchoring of profile 3 to concrete floor slab 2. If necessary, such openings may also be provided in each of the remaining embodiments of the invention described here. If the anchoring provided by the anchoring flanges themselves is sufficient, openings 16, 17 may be omitted.
  • Figure 8 shows a fourth embodiment of the invention.
  • the fourth embodiment is a combination of the second embodiment illustrated in figure 4 and the third embodiment of the invention illustrated in Figures 5-7 .
  • Flange 10, that borders upon the horizontal profile part 4 is not widened here, whereas flange 14, which borders upon upright part 5 of the profile, is widened.
  • the widened part is bent somewhat in an outward direction.
  • the widened part is bent inwards, as opposed to the embodiment shown.
  • Figures 1 and 2 show that edge profile 3 is attached along the four side edges of concrete slab 2.
  • the edge profile here is composed of four edge profile elements 3'-3'''' fastened to each other at each end. In some situations the edge profile elements are welded together.
  • prefabricated elements that have been previously treated against rust formation, this often means that the pretreatment is damaged at the site of the welds and that an intensive additional anti-corrosion treatment is therefore required.
  • This drawback is all the greater if, on the other hand, untreated prefabricated elements are used. After the untreated prefabricated elements are welded to each other an intensive surface treatment of the elements must be undertaken in order to protect them adequately from rust and other external influences.
  • fastening means can be used whereby the edge profile elements are fastened to each other.
  • the edge profile elements can be "clinched", for example.
  • the edge profiles can be fastened to each other, for example, by means of rivets, in particular by (but not limited to) the use of pop rivets.
  • the fastening means are then formed by the pop rivets, also called blind rivets.
  • blind rivets are known according to prior art and a further description of them is therefore omitted here.
  • fastening means in combination with coupling elements may be used in order to avoid welding the edge profile elements in the corners.
  • Edge profile elements can be fastened to each other in the corners with the use of coupling elements.
  • Figures 9 and 10 illustrate an embodiment of such a coupling element 20.
  • Coupling element 20 is composed of a first U-profile 21 and a second U-profile 22 positioned at a right angle thereto.
  • the uppermost part of the two U-profiles 20, 21 is provided with two protruding strips 29, each having a resilient lip 30 fastened thereto.
  • the lowest part of both U-profiles 20, 21 is provided with two lips 31.
  • Lips 30 and 31 are embodied in such a manner that they slide automatically under resilient force into the respective openings 19 and 18 thus producing a 'click'-engagement between coupling element 20 and the respective edge profile.
  • the edge coupling elements and the coupling piece are shown in more detail in the mounted assembly illustrated in figure 11 .
  • the edge profile elements can be coupled to each other at the four corner points in a rapid and efficient manner without any subsequent operation being required, such as the welding of the elements.
  • Figure 12A shows a top view of an elongated edge profile 32 composed of a single part.
  • the edge profile 32 has four edge profile elements 33-34, each of which may be affixed along a single edge of the concrete slab.
  • Edge profile elements 33-34 can be hinged relative to each other by three hinge parts 38. These hinge parts are formed by providing the edge profile with three slits 37. The slits are formed in such a manner that the edge profile is provided with three V-shaped recesses.
  • edge profile can be hinged along hinges 38 (compare the intermediate state shown in figure 12B , just before the final state is reached, as shown in figure 12C ) until the edge profile can be caused to produce a rectangular configuration.
  • Figure 12B shows that ends 39 and 40 of edge profile elements 33 and 36 of edge profile 32 can be caused to engage each other after a coupling piece 41 is applied.
  • the coupling piece ensures the required mutual fastening of both ends 39 and 40 of edge profile 32.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP20080161244 2007-08-03 2008-07-28 Elément de plancher Withdrawn EP2045395A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2000794A NL2000794C2 (nl) 2007-08-03 2007-08-03 Vloerelement.

Publications (1)

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EP2045395A2 true EP2045395A2 (fr) 2009-04-08

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ID=40119317

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Application Number Title Priority Date Filing Date
EP20080161244 Withdrawn EP2045395A2 (fr) 2007-08-03 2008-07-28 Elément de plancher

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EP (1) EP2045395A2 (fr)
NL (1) NL2000794C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2595020C2 (ru) * 2014-09-29 2016-08-20 Игорь Алексеевич Иванов Дорожная плита

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8903721U1 (de) 1989-03-24 1989-05-24 Stelcon Ag, 4300 Essen Industriefußbodenplatte aus Beton

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106670A1 (de) * 1971-02-12 1972-08-17 Büchner, Fritz, 5500 Trier Stahlbetonplatte, insbesondere für schienengleiche Bahnüberwege
DE10155980A1 (de) * 2001-11-14 2003-05-22 Dietrich Poburski Bodenplatte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8903721U1 (de) 1989-03-24 1989-05-24 Stelcon Ag, 4300 Essen Industriefußbodenplatte aus Beton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2595020C2 (ru) * 2014-09-29 2016-08-20 Игорь Алексеевич Иванов Дорожная плита

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Publication number Publication date
NL2000794C2 (nl) 2009-02-04

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