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EP3341535B1 - Abstandshalter für betonarmierungen - Google Patents

Abstandshalter für betonarmierungen Download PDF

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Publication number
EP3341535B1
EP3341535B1 EP16762741.3A EP16762741A EP3341535B1 EP 3341535 B1 EP3341535 B1 EP 3341535B1 EP 16762741 A EP16762741 A EP 16762741A EP 3341535 B1 EP3341535 B1 EP 3341535B1
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EP
European Patent Office
Prior art keywords
rods
longitudinal
longitudinal rods
rod
transverse
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EP16762741.3A
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English (en)
French (fr)
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EP3341535A1 (de
Inventor
Hugo Van den Broecke
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Intersig Nv
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Intersig Nv
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Publication date
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Priority to SI201630486T priority Critical patent/SI3341535T1/sl
Priority to HRP20191969TT priority patent/HRP20191969T1/hr
Priority to PL16762741T priority patent/PL3341535T3/pl
Publication of EP3341535A1 publication Critical patent/EP3341535A1/de
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Publication of EP3341535B1 publication Critical patent/EP3341535B1/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18—Spacers of metal or substantially of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/065—Light-weight girders, e.g. with precast parts

Definitions

  • the present invention includes spacing elements for concrete reinforcements.
  • the spacing elements provided herein can be easily stacked, thereby reducing transport and storage related costs. Further provided herein are uses of the spacing elements, stacks of the spacing elements, methods of stacking the spacing elements, and methods of making the spacing elements.
  • Reinforcements for flat structures in reinforced concrete are usually made from steel reinforcement meshes. Often, one or more reinforcement meshes are provided both at the top and bottom in the flat structure, such that both tensile and compressive stresses can be absorbed in an optimum manner.
  • the reinforcement meshes are usually kept at the desired distance from one another by means of linear spacers (also referred to as high chair spacers).
  • linear spacers also referred to as high chair spacers.
  • spacers include lattice girders and U- or ⁇ -shaped spacers. Spacers are known for offering a high strength while requiring very little material.
  • a type of spacer which is often used is a lattice girder with a triangular or trapezoidal cross section. While some configurations of spacers (e.g. lattice girders) pose no stacking issues, spacers with U- or ⁇ -shaped transverse rods (U- or ⁇ -shaped spacers or sometimes also referred to as square top high chairs) have the drawback that they are difficult to stack. Accordingly, there is a need for new spacers. There is also a need for new methods of producing spacers.
  • EP 0 333 897 A1 , NL 7511688 A and JP H10 338995 A show spacing elements comprising longitudinal rods and U- or ⁇ -shaped transverse rods.
  • the present invention relates to a spacing element according to claim 1 for concrete reinforcements and/or concrete structures comprising three parallel straight longitudinal rods including two bottom longitudinal rods and a top longitudinal rod, connected to one another by U- or ⁇ -shaped transverse rods which run perpendicular to the longitudinal rods, and which are laterally connected to the longitudinal rods; characterized in that the top longitudinal rod is positioned off-center.
  • the spacing element comprises three parallel straight longitudinal rods including two bottom longitudinal rods and a top longitudinal rod, connected to one another by U- or ⁇ -shaped transverse rods which run perpendicular to the longitudinal rods, and which are laterally connected to the longitudinal rods; characterized in that the top longitudinal rod is positioned off-center, wherein said spacing element comprises a single top longitudinal rod or a single bundle of top longitudinal rods, and wherein ⁇ and ⁇ are between 60° and 85°, ⁇ being the smallest angle between the first leg element and an imaginary line between the endpoints of the first and second leg elements, and ⁇ being the smallest angle between the second leg element and an imaginary line between the endpoints of the first and second leg elements.
  • the spacing element provides that the transverse rods are U- or ⁇ -shaped transverse rods, the U- or ⁇ -shaped transverse rods each comprising two leg elements, a first leg element and a second leg element, both leg elements having a proximal end and a distal end, the leg elements being connected on their proximal end to a base element.
  • the smallest angle between the base element and the first longitudinal rod is an obtuse angle
  • the smallest angle between the base element and the second longitudinal rod is an acute angle.
  • the transverse rods are U- or ⁇ -shaped transverse rods, the U- or ⁇ -shaped transverse rods each comprising two leg elements, a first leg element and a second leg element, both leg elements having a proximal end and a distal end, the leg elements being connected on their proximal end to a base element.
  • the smallest angle between the base element and the first leg member is an obtuse angle
  • the smallest angle between the base element and the second leg member is an acute angle.
  • the spacing element according to the invention provides that the top longitudinal rod does not project beyond the top of the transverse rods.
  • the spacing element according to the invention provides that at least the top longitudinal rod is attached to the outside of the transverse rods.
  • the spacing element according to the invention provides that said spacing element comprises a single top longitudinal rod or a single bundle of top longitudinal rods.
  • the spacing element according to the invention provides that the transverse rods do not project, or project at most 0.5 mm, beyond the bottom longitudinal rods.
  • the spacing element according to the invention provides that the spacing element comprises two or more transverse rods of different diameters.
  • the present invention relates to the use of a spacing element according to the invention as a construction element.
  • the present invention relates to a stack comprising two or more spacing elements according to the invention, wherein the transverse cross section of each subsequent spacing element is a mirror image of transverse cross section of the underlying spacing element.
  • the present invention relates to a method for preparing a spacing element according to the invention, wherein said method comprises
  • each successive spacing element is the mirror of the previous spacing element.
  • the present invention relates to a method for preparing a spacing element according to the invention, wherein said method comprises
  • step (a) comprises the step: (aa) providing at least six parallel longitudinal rods in a plane, comprising
  • the method according to the invention additionally comprises the step of stacking the successively produced spacing elements.
  • 100 - spacing element 110 - first leg element; 111 - first vertex; 112 - endpoint of the first leg element; 120 - second leg element; 121 - second vertex; 122 - endpoint of the second leg element; 130 - base element; 140 - top longitudinal rod; 141 - top of the top longitudinal rod; 142 - bond between the top longitudinal rod (140) and the base element (130); 150 - first bottom longitudinal rod; 160 - second bottom longitudinal rod (second); 170 - imaginary line; 200 - stack.
  • d distance between the top (141) of the top longitudinal rod and the bond (142) between the top longitudinal rod and the transverse rod, in the direction perpendicular between the top (141) of the top longitudinal rod and the second vertex (121); e - distance between the top (141) of the top longitudinal rod and the second vertex (121); ⁇ - angle between the first leg element and the base element; ⁇ - angle between the second leg element and the base element; ⁇ - angle between the first leg element and the second leg element; ⁇ - angle between the direction in which distance (e) is measured and the base element (130); ⁇ - angle between the second leg element (120) and the imaginary line (170); ⁇ - angle between the first leg element (120) and the imaginary line (170);.
  • an object is "elongate" when the length of the object is greater than two times the width of the object; preferably the length is greater than three, four or five times the width of the object.
  • a first rod is considered to be positioned perpendicularly with respect to a plane or a second rod when the smallest angle between the longitudinal axis of the first rod and the plane or the longitudinal axis of the second rod, is between 89° and 91°; preferably between 89.5° and 90.5°; and most preferably 90°.
  • the spacing elements comprise three parallel straight longitudinal rods.
  • the longitudinal rods include two bottom longitudinal rods and a top longitudinal rod.
  • the longitudinal rods are connected to one another by means of U- or ⁇ -shaped transverse rods.
  • the transverse rods run perpendicular to the longitudinal rods.
  • the transverse rods are connected, laterally connected, to the longitudinal rods.
  • the top longitudinal rod is positioned off-center.
  • the invention provides a spacing element for concrete reinforcements and/or concrete structures comprising three parallel straight longitudinal rods.
  • the longitudinal rods include two bottom longitudinal rods and a top longitudinal rod, connected to one another by U- or ⁇ -shaped transverse rods which run perpendicular to the longitudinal rods.
  • the transverse rods are laterally connected to the longitudinal rods.
  • the top longitudinal rod is positioned off-center, and said spacing element comprises a single top longitudinal rod or a single bundle of top longitudinal rods.
  • ⁇ and ⁇ are between 60° and 85°, ⁇ being the smallest angle between the first leg element and an imaginary line between the endpoints of the first and second leg elements, and ⁇ being the smallest angle between the second leg element and an imaginary line between the endpoints of the first and second leg elements.
  • the transverse rods are U- or ⁇ -shaped transverse rods
  • the U- or ⁇ -shaped transverse rods each comprise two leg elements: a first leg element and a second leg element. Both leg elements have a proximal end and a distal end, and each leg element is connected to a base element via their proximal end.
  • the smallest angle between the base element and the first leg member is typically an obtuse angle. Also, the smallest angle between the base element and the second leg member is typically an acute angle.
  • the spacing elements provided herein consists of three longitudinal rods.
  • the term "rod” refers to a shaft or bar as typically used in metal industry to manufacture metal constructions.
  • the rod may have several shapes, including but not limited to circular, oval, square, squircle, ellipse or other geometrical shapes.
  • the surface of the rods may be smooth, ribbed or comprise any other type of surface modification.
  • the spacing elements provided herein can be stacked very densely. According, many spacing elements can be stored and/or transported in a given volume, which allows the spacing elements provided herein to be transported and/or stored at low cost.
  • U- or ⁇ -shaped transverse rods comprise a first leg element and a second leg element. Both leg elements have a proximal end and a distal end, and the leg elements are connected on their proximal end to a base element.
  • the connection between the base element and the first leg element is called the first connection.
  • the connection between the base element and the second leg element is called the second connection.
  • the first connection corresponds to the vertex labeled "111”
  • the second connection corresponds to the vertex labeled "121”.
  • the term "off-center”, when used in connection with U- or ⁇ -shaped transverse rods, refers to the case in which the distance between the top longitudinal rod and the first connection is smaller than the distance between the top longitudinal rod and the second connection.
  • the distance by which the top longitudinal rod is "off-center” is equal to or larger than the diameter of the top longitudinal rod.
  • a spacing element for concrete reinforcements and/or concrete structures comprising three parallel straight longitudinal rods including two bottom longitudinal rods and a top longitudinal rod, connected to one another by U- or ⁇ -shaped transverse rods which run perpendicular to the longitudinal rods, and which are laterally connected to the longitudinal rods; characterized in that the top longitudinal rod is positioned off-center.
  • spacing elements can be stacked very densely, as detailed below.
  • the particular configuration of the spacing elements allows for a dense stacking of the elements, thereby optimizing the space used by the stack.
  • the close fit in the stacking also ensures a more secure and safe stapling.
  • the top longitudinal rod is connected to the proximal end of the U- or ⁇ -shaped transverse rods.
  • the U- or ⁇ -shaped transverse rods comprise leg members running from the proximal end of a transverse rod to its distal end.
  • the two bottom longitudinal rods comprise a first bottom longitudinal rod and a second longitudinal rod.
  • the first bottom longitudinal rod is typically attached to the first leg element and the second longitudinal rod is typically attached to the second leg element.
  • the first leg element and the second leg element each end in an endpoint.
  • the first endpoint corresponds to the first leg element and the second endpoint corresponds to the second leg element.
  • An imaginary line runs through the endpoints. The angle between the first leg element and the imaginary line is called ⁇ .
  • the angle between the second leg element and the imaginary line is called ⁇ .
  • ⁇ is between 60° and 85°, more preferably about 70°.
  • the angle between the second leg element and the imaginary line is called ⁇ .
  • ⁇ is between 60° and 85°, more preferably about 70°.
  • the angles ⁇ and ⁇ are equal within a margin of ⁇ 5.0°.
  • the base element, the first leg element, and the second leg element of a single transverse rod are coplanar.
  • the U- or ⁇ -shaped transverse rods are U- or ⁇ -shaped transverse rods, the U- or ⁇ -shaped transverse rods each comprising two leg elements, a first leg element and a second leg element, both leg elements having a proximal end and a distal end, the leg elements being connected on their proximal end to a base element, wherein preferably the smallest angle between the base element and the first longitudinal rod is an obtuse angle, and preferably the smallest angle between the base element and the second longitudinal rod is an acute or obtuse angle.
  • These spacing elements can be stacked very densely, as detailed below.
  • first leg element and a second leg element have a different length.
  • first leg element and a second leg element have the same length.
  • one and only one longitudinal rod is attached to the base element. This enhances the stack ability of the spacing elements provided herein.
  • the distance between the top longitudinal rod and the first leg element is smaller than the distance between the top longitudinal rod and the second leg element.
  • the first leg element and the second leg element are straight.
  • the first leg element and/or the second leg element are bent.
  • the angle ⁇ ranges between 91° and 150°.
  • the angle ⁇ may range between 60° and 120°, though typically, the angle ⁇ is between 60° and 89°.
  • the angle ⁇ ranges between 1° and 40°.
  • the angle ⁇ ranges between 10° and 40°.
  • the angle ⁇ is, according to the invention, between 60° and 85°.
  • the angle ⁇ is, according to the invention, between 60° and 85°.
  • the length e ranges between 5 mm and 50 mm.
  • the length d ranges between 2 mm and 10 mm.
  • the length of the first leg element ranges between 20 mm and 300 mm.
  • the length of the second leg element ranges between 25 mm and 305 mm.
  • the length of the base element ranges between 10 mm and 60 mm, more
  • the distance d is equal to or greater than the diameter of the top longitudinal rod. This enhances the stack ability of the spacing elements provided herein. However, it should be clear that similar effect can be obtained if the distance d is slightly smaller than the diameter of the top longitudinal rod. Preferably, the distance d is ranges between -10% and +10% of the diameter of the top longitudinal rod, more preferably between -5% and +5%, and more preferably between -1% and +1% of the diameter of the top longitudinal rod.
  • the distance "d” is defined in the examples.
  • At least the top longitudinal rod is attached to the outside of the transverse rods. This enhances the stack ability of the spacing elements provided herein.
  • the outside of a spacing element corresponds to the convex side of the smallest convex hull enclosing the spacer.
  • the spacing element comprises a single top longitudinal rod or a single bundle of top longitudinal rods.
  • the recitation "single bundle of top longitudinal rods” as used herein refers to a plurality of closely-spaced, longitudinally aligned longitudinal rods.
  • the recitation "single bundle of top longitudinal rods” as used herein refers to a plurality of longitudinal rods, which are longitudinally aligned, and between which the spacing is less than the diameter of the longitudinal rods, preferably less than half the diameter of the longitudinal rods, more preferably less than four times the diameter of the longitudinal rods, most preferably less than 8 times the diameter of the longitudinal rods.
  • a “single bundle of top longitudinal rods” may comprise longitudinal rods with varying diameters.
  • the transverse rods do not project, or project at most 0.5 mm, beyond the bottom longitudinal rods. Accordingly, the spacing elements can be dragged easily over reinforcement meshes.
  • the spacing element comprises two or more transverse rods of different diameters. This can enhance the trade-off between strength and material efficiency of the spacers provided herein.
  • the spacing element comprises two or more longitudinal rods of different diameters.
  • the top longitudinal rod may have a different diameter compared to the peripheral longitudinal rods. This can enhance the trade-off between strength and material efficiency of the spacers provided herein.
  • the present invention provides the use of a spacing element provided herein as a construction element.
  • Construction elements provided herein may be very effectively used as construction elements.
  • construction elements provided herein can be stacked easily and densely thereby allowing for storage- and transport-related cost reductions and efficiency enhancements in the construction industry.
  • the present invention provides a stack comprising two or more spacing elements provided herein, wherein the transverse cross section of each subsequent spacing element is a mirror image of transverse cross section of the underlying spacing element.
  • the spacing element is a spacing element according to aspect 1 and/or an embodiment thereof.
  • Such stacks allow very efficient storage and/or transport of the spacing elements provided herein, thereby allowing for storage- and transport-related cost reductions and efficiency enhancements in, for example, the construction industry.
  • a stack comprises at least 5, more preferably at least 10, more preferably at least 25 spacing elements.
  • the particular configuration of the spacing elements according to the present invention allows stacks to comprise up to 100 or more spacing elements.
  • the stacks with the spacing elements according to the present invention have been found to be particularly stable and ensure that the structural integrity of the spacing elements is maintained during transport. As a result, transport of the stacks will not affect the quality of the spacing elements, e.g. during transport.
  • a spacing element In a fourth aspect, provided herein are methods for preparing a spacing element.
  • the methods for manufacturing can be either in cross or parallel direction (referring to the direction of the placement of the longitudinal rods).
  • the method provides in a cross direction manufacturing method of a spacing element according to the invention, wherein said method comprises
  • each successive spacing element is the mirror of the previous spacing element.
  • subsequent spacing element are produced, each of them separately exiting the machine and transported to the stacking system where the spacing elements are stacked onto each other.
  • Manufacturing successive spacing element each being the mirror of the previous spacing element allows for easy stacking and no need for the stacking machine to rotate the spacing elements. Accordingly only linear movements are required, thereby simplifying the stacking process.
  • the method provides in a parallel direction manufacturing method of a spacing element according to the invention, wherein said method comprises
  • the interstitial longitudinal rod forms a top longitudinal rod in the finished spacing element after completion of the steps of the method.
  • the parallel direction manufacturing method provides in an efficient and high-throughput method for manufacturing the spacing elements.
  • these methods are used for producing spacing elements according to the first aspect of the present invention.
  • the present method allows for the efficient production of spacing elements.
  • the longitudinal rods are fastened to the transverse rods by means of welding.
  • step (a) comprises the step: (aa) providing at least six parallel longitudinal rods in a plane, comprising
  • spacing elements preferably the spacing elements provided herein, can be produced in a very efficient manner.
  • the spacing elements provided herein are made using a method described in European patent application no. 14193221.0 .
  • a separate roll is provided for each longitudinal rod.
  • Different rolls may be provided with longitudinal rods having different cross sections, which may be unrolled independently. Accordingly, spacing elements of which one or more longitudinal rods have different cross sections than the other longitudinal rods can be efficiently made.
  • the central longitudinal rods are cut to a desired length before performing step (d). Accordingly, spacing elements, preferably the spacing elements provided herein, can be produced in a very efficient manner.
  • a desired length is, for example, the length of a spacing element which is produced using the method.
  • Fig. 1 shows a transverse cross section of a spacing element (100) comprising a first leg element (110), a second leg element (120), and a base element (130).
  • the first leg element (110) and the base element (130) are joined in a first vertex (111).
  • the second leg element (120) and the base (130) are joined in a second vertex (121).
  • the vertices (111,121) are formed by bending transverse rods.
  • the spacing element (100) has a proximal side and a distal side. At the proximal side, a top longitudinal rod (140) is attached to the base element (130).
  • two bottom longitudinal rods (150,160) are attached to the leg elements (110,120).
  • a first bottom longitudinal rod (150) is attached to the first leg element (110)
  • a second bottom longitudinal rod (160) is attached to the second leg element (120).
  • the angle between the first leg element (110) and the base element (130) is an obtuse angle ( ⁇ ).
  • the angle between the second leg element (120) and the base element (130) is an acute angle ( ⁇ ). It should be noted that the angle between the second leg element (120) and the base element (130) may also be an obtuse angle ( ⁇ )
  • the first leg element (110) and the second leg element (120) each end in an endpoint (112,122).
  • endpoint (112) corresponds to the first leg element (110)
  • the second endpoint (122) corresponds to the second leg element (120).
  • An imaginary line (170) runs through the endpoints (112,122).
  • the angle between the first leg element (110) and the imaginary line (170) is called ⁇ .
  • the angle between the second leg element (120) and the imaginary line (170) is called ⁇ .
  • angles ⁇ and ⁇ are both equal to 80° within a margin of +10° and -20°.
  • Fig. 2 shows a close-up of the transverse cross section of the spacing element (100) shown in Fig. 1 .
  • the spacing element (100) of Fig. 2 has a particular configuration.
  • the configuration can be described by means of angles ( ⁇ ), ( ⁇ ), ( ⁇ ), and ( ⁇ ).
  • the configuration can be described by means of lengths (d) and (e).
  • the ⁇ -angle ( ⁇ ) is the smallest angle between the first leg element (110) and the base element (130).
  • the ⁇ -angle ( ⁇ ) is the smallest angle between the second leg element (120) and the base element (130).
  • the ⁇ -angle ( ⁇ ) is the smallest angle between the first leg element (110) and the second leg element (120).
  • the ⁇ -angle ( ⁇ ) is the smallest angle between the base element (130) and the line running through the following two points: 1) the top (141) of the top longitudinal rod (140), and 2) the vertex (121) at the interconnection between the second leg element (120) and the base element (130).
  • the length (d) is equal to the distance between the following two points: 1) the bond (141) between the top longitudinal rod (140) and the base element (130), and 2) the top (141) of the top longitudinal rod (140), measured in the direction perpendicular to the direction in which the length (e) is measured.
  • the length (e) is equal to the distance between the top (141) of the top longitudinal rod (140), and the vertex (121) between the base element (130) and the second leg element (120).
  • Fig. 3 shows a stack (200) of spacing elements (100). Each subsequent spacing element (100) is rotated for about 180° about the vertical direction with respect to the orientation of the underlying spacing element (100). Accordingly, a very densely stacked stack (200) is obtained.

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Claims (14)

  1. Abstandshalterelement (100) für Betonarmierungen und/oder Betonkonstruktionen, umfassend drei parallele gerade Längsstäbe (140, 150, 160), die zwei untere Längsstäbe (150, 160) und einen oberen Längsstab (140) umfassen, die durch U- oder Π-förmige Querstäbe verbunden sind, die rechtwinklig zu den Längsstäben (140, 150, 160) verlaufen und die quer mit den Längsstäben (140, 150, 160) verbunden sind,
    wobei die U- oder Π-förmigen Querstäbe ein erstes Schenkelelement (110) und ein zweites Schenkelement (120) umfassen, wobei das erste und das zweite Schenkelelement (110, 120) ein nahe gelegenes Ende und ein entfernt gelegenes Ende aufweisen, wobei das erste Schenkelelement (110) an seinem nahe gelegenen Ende über eine erste Verbindung (111) mit dem Basiselement (130) verbunden ist und das zweite Schenkelelement (120) an seinem nahe gelegenen Ende über eine zweite Verbindung (112) mit dem Basiselement (130) verbunden ist,
    dadurch gekennzeichnet, dass wenigstens der obere Längsstab (140) an der Außenseite der Querstäbe angebracht ist,
    dass der obere Längsstab (140) außermittig platziert ist, wobei sich der Begriff "außermittig" auf eine der folgenden zwei Situationen bezieht:
    - der Abstand zwischen dem oberen Längsstab (140) und der ersten Verbindung (111) ist kleiner als der Abstand zwischen dem oberen Längsstab (140) und der zweiten Verbindung (112), oder
    - der Abstand zwischen dem oberen Längsstab (140) und der zweiten Verbindung (112) ist kleiner als der Abstand zwischen dem oberen Längsstab (140) und der ersten Verbindung (111),
    dass das Abstandshalterelement (100) einen einzelnen oberen Längsstab (140) oder ein einzelnes Bündel von oberen Längsstäben umfasst,
    und dass ζ und ε zwischen 60° und 85° liegen, wobei ζ der kleinste Winkel zwischen dem ersten Schenkelelement (110) und einer gedachten Linie zwischen den Endpunkten (112, 122) des ersten und des zweiten Schenkelelements (110, 120) ist und ε der kleinste Winkel zwischen dem zweiten Schenkelelement (120) und einer gedachten Linie zwischen den Endpunkten (112, 122) des ersten und des zweiten Schenkelelements (110, 120) ist.
  2. Abstandshalterelement (100) nach Anspruch 1, wobei der kleinste Winkel zwischen dem Basiselement (130) und dem ersten Schenkelelement (110) ein stumpfer Winkel ist und wobei der kleinste Winkel zwischen dem Basiselement (130) und dem zweiten Schenkelelement (120) ein spitzer Winkel ist.
  3. Abstandshalterelement (100) nach Anspruch 2, wobei der obere Längsstab (140) nicht über das obere Ende der Querstäbe hinausragt.
  4. Abstandshalterelement (100) nach einem der Ansprüche 1 bis 3, wobei das Abstandshalterelement einen einzelnen oberen Längsstab (140) umfasst.
  5. Abstandshalterelement (100) nach einem der Ansprüche 1 bis 4, wobei das Abstandshalterelement ein einzelnes Bündel von oberen Längsstäben umfasst.
  6. Abstandshalterelement (100) nach einem der Ansprüche 1 bis 5, wobei die Querstäbe nicht oder höchstens 0,5 mm über die unteren Längsstäbe (150, 160) hinausragen.
  7. Abstandshalterelement (100) nach einem der Ansprüche 1 bis 6, wobei das Abstandshalterelement (100) zwei oder mehrere Querstäbe mit unterschiedlichen Durchmessern umfasst.
  8. Verwendung eines Abstandshalterelements (100) nach einem der Ansprüche 1 bis 7 als ein Konstruktionselement.
  9. Stapel (200), umfassend zwei oder mehrere Abstandshalterelemente (100) nach einem der Ansprüche 1 bis 7, wobei der transversale Querschnitt jedes nachfolgenden Abstandshalterelements (100) spiegelbildlich zu dem transversalen Querschnitt des darunter liegenden Abstandshalterelements (100) ist.
  10. Verfahren zum Vorbereiten eines Abstandshalterelements (100) nach einem der Ansprüche 1 bis 7, wobei das Verfahren Folgendes umfasst:
    (a) Bereitstellen einer Vielzahl von Querstäben in einer Ebene,
    (b) nachfolgendes Platzieren und Befestigen eines ersten, eines zweiten und eines dritten parallelen Längsstabes an der Vielzahl von Querstäben, wobei die Längsstäbe rechtwinklig zu den Querstäben verlaufen und wobei
    - der erste und der dritte Längsstab umfangseitige Längsstäbe sind und
    - der zweite Längsstab der in dem Zwischenraum zwischen den umfangseitigen Längsstäben gelegene Längsstab ist,
    wodurch eine Gitterstruktur hergestellt wird,
    (c) Abschneiden der Querstäbe, die über die umfangseitigen Längsstäbe vorstehen, und
    (d) Biegen der Gitterstruktur, wodurch ein Abstandshalterelement hergestellt wird, das drei parallele gerade Längsstäbe umfasst, die zwei untere Längsstäbe und einen oberen Längsstab umfassen, die durch U- oder Π-förmige Querstäbe miteinander verbunden sind, die rechtwinklig zu den Längsstäben verlaufen und die quer mit den Längsstäben verbunden sind,
    dadurch gekennzeichnet, dass der in dem Zwischenraum zwischen umfangseitigen Längsstäben gelegene Längsstab exzentrisch platziert ist.
  11. Verfahren nach Anspruch 10, wobei jedes nachfolgende Abstandshalterelement (100) spiegelbildlich zu dem vorhergehenden Abstandshalterelement (100) ist.
  12. Verfahren zum Vorbereiten eines Abstandshalterelements (100) nach einem der Ansprüche 1 bis 7, wobei das Verfahren Folgendes umfasst:
    (a) Bereitstellen von wenigstens drei parallelen Längsstäben in einer Ebene, umfassend:
    - zwei umfangseitige Längsstäbe und
    - einen in dem Zwischenraum zwischen den umfangseitigen Längsstäben gelegenen Längsstab,
    (b) Platzieren von Querstäben rechtwinklig zu den Längsstäben auf und/oder unter den Längsstäben und Befestigen der Querstäbe an den Längsstäben, wodurch eine Gitterstruktur hergestellt wird,
    (c) optional Abschneiden von Querstäben, die über die umfangseitigen Längsstäbe vorstehen, und
    (d) Biegen der Gitterstruktur, wodurch ein Abstandshalterelement hergestellt wird, das drei parallele gerade Längsstäbe umfasst, die zwei untere Längsstäbe und einen oberen Längsstab umfassen, die durch U- oder Π-förmige Querstäbe miteinander verbunden sind, die rechtwinklig zu den Längsstäben verlaufen und die quer mit den Längsstäben verbunden sind,
    dadurch gekennzeichnet, dass der in dem Zwischenraum zwischen umfangseitigen Längsstäben gelegene Längsstab exzentrisch platziert ist.
  13. Verfahren nach Anspruch 12, wobei Schritt (a) den folgenden Schritt umfasst:
    (aa) Bereitstellen von wenigstens sechs parallelen Längsstäben in einer Ebene, umfassend:
    - zwei umfangseitige Längsstäbe,
    - wenigstens eine Stanz- oder Schneidnut, die ein Paar von einander benachbarten Längsstäben umfasst,
    - einen in dem Zwischenraum zwischen jedem umfangseitigen Längsstab und der benachbarten Stanz- oder Schneidnut exzentrisch gelegenen Längsstab,
    - optional einen oder mehrere in dem Zwischenraum gelegene Längsstäbe, wobei ein weiterer in dem Zwischenraum gelegener Längsstab, vorzugsweise nur ein weiterer in dem Zwischenraum gelegener Längsstab, exzentrisch zwischen jedem Paar von benachbarten Stanznuten vorgesehen ist, wenn die Längsstäbe von zwei oder mehreren Stanznuten, und
    - optional einen oder mehrere zusätzliche Längsstäbe, die sich zwischen umfangseitigen Längsstäben und außerhalb der Stanznuten befinden,
    wobei Schritt (b) den folgenden Schritt umfasst:
    (ba) Platzieren von Querstäben rechtwinklig zu den Längsstäben auf und/oder unter denselben und Befestigen der Querstäbe an den Längsstäben, wodurch eine Gitterstruktur hergestellt wird,
    wobei Schritt (c) den folgenden Schritt umfasst:
    (ca) Ausstanzen oder Durchschneiden der Querstababschnitte zwischen den benachbarten Längsstäben der Stanznut, wodurch zwei oder mehrere längserstreckte Gitter hergestellt werden, wobei jedes Gitter drei parallele Längsstäbe umfasst, die durch Querstäbe miteinander verbunden sind, die rechtwinklig zu den Längsstäben verlaufen und die quer mit denselben verbunden sind, wobei die Querstäbe vorzugsweise nicht oder höchstens 0,5 mm über die äußeren Längsstäbe hinausragen, und
    wobei Schritt (d) den folgenden Schritt umfasst:
    (da) Biegen der zwei oder mehreren längserstreckten Gitter, wodurch zwei oder mehrere Abstandshalter hergestellt werden, die jeweils drei parallele gerade Längsstäbe umfassen, die zwei untere Längsstäbe und einen oberen Längsstab umfassen, die durch U- oder Π-förmige Querstäbe miteinander verbunden sind, die rechtwinklig zu den Längsstäben verlaufen und die quer mit den Längsstäben verbunden sind, wobei die Querstäbe vorzugsweise nicht oder höchstens 0,5 mm über die unteren Längsstäbe hinausragen.
  14. Verfahren nach den Ansprüchen 10 bis 13, zusätzlich umfassend den Schritt des Stapelns nacheinander hergestellter Abstandshalterelemente (100).
EP16762741.3A 2015-08-25 2016-08-23 Abstandshalter für betonarmierungen Active EP3341535B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201630486T SI3341535T1 (sl) 2015-08-25 2016-08-23 Distančnik za betonske armature
HRP20191969TT HRP20191969T1 (hr) 2015-08-25 2016-08-23 Držač razmaka za betonske armature
PL16762741T PL3341535T3 (pl) 2015-08-25 2016-08-23 Element dystansowy do zbrojenia betonu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2015/5529A BE1022796B1 (nl) 2015-08-25 2015-08-25 Afstandhouder voor betonwapeningen
PCT/EP2016/069875 WO2017032767A1 (en) 2015-08-25 2016-08-23 Spacer for concrete reinforcements

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EP3341535B1 true EP3341535B1 (de) 2019-10-02

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BE (1) BE1022796B1 (de)
DK (1) DK3341535T3 (de)
ES (1) ES2762935T3 (de)
HR (1) HRP20191969T1 (de)
LT (1) LT3341535T (de)
PL (1) PL3341535T3 (de)
PT (1) PT3341535T (de)
SI (1) SI3341535T1 (de)
WO (1) WO2017032767A1 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1135646B (de) * 1959-08-06 1962-08-30 O G Ohlssons Byggnads A B Buegelfoermiger Abstandhalter aus Bewehrungsstahl
FR1408791A (fr) * 1964-07-06 1965-08-20 Armatures de poutre en béton armé
GB1134546A (en) * 1966-07-25 1968-11-27 Cufflin Engineering And Tradin Improvements in girders for ferro-concrete ceilings
FR2288197A1 (fr) * 1974-10-17 1976-05-14 Arbed Dispositif de support metallique pour treillis d'armatures de construction en beton arme
EP0333897B1 (de) * 1988-03-22 1992-06-03 Von Roll Ag Distanzhaltevorrichtung für Stahlbeton-Konstruktionen
JPH10338995A (ja) * 1997-06-07 1998-12-22 Hirao Tetsuken Kk ブロック式マットスペーサー

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* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
SI3341535T1 (sl) 2019-12-31
EP3341535A1 (de) 2018-07-04
LT3341535T (lt) 2019-12-10
WO2017032767A1 (en) 2017-03-02
BE1022796B1 (nl) 2016-09-08
PL3341535T3 (pl) 2020-07-13
PT3341535T (pt) 2019-12-16
HRP20191969T1 (hr) 2020-01-24
DK3341535T3 (da) 2020-01-02
ES2762935T3 (es) 2020-05-26

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