EP3309327B1 - Ancre de transport - Google Patents

Ancre de transport Download PDF

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Publication number
EP3309327B1
EP3309327B1 EP17196017.2A EP17196017A EP3309327B1 EP 3309327 B1 EP3309327 B1 EP 3309327B1 EP 17196017 A EP17196017 A EP 17196017A EP 3309327 B1 EP3309327 B1 EP 3309327B1
Authority
EP
European Patent Office
Prior art keywords
anchor
pressure member
transport
legs
transport anchor
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.)
Active
Application number
EP17196017.2A
Other languages
German (de)
English (en)
Other versions
EP3309327A1 (fr
Inventor
Renzo De Bondt
Tom De Bondt
Dirk Vael
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.)
Econac bvba
Original Assignee
Econac bvba
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.)
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Publication date
Application filed by Econac bvba filed Critical Econac bvba
Priority to PL17196017T priority Critical patent/PL3309327T3/pl
Publication of EP3309327A1 publication Critical patent/EP3309327A1/fr
Application granted granted Critical
Publication of EP3309327B1 publication Critical patent/EP3309327B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • E04G21/145—Means in or on the elements for connecting same to handling apparatus specific for hollow plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures

Definitions

  • the invention further relates to a method for producing such a transport anchor.
  • Such transport and laying anchors are used for the transport of so-called double walls. They are usually poured into concrete walls in the precast concrete industry and serve on the one hand as a transport device to which sling gear can be attached, and on the other hand as a spacer during the concreting process.
  • a transport anchor is known in which the pressure element is made of steel and welded onto the anchor legs.
  • the large forces mentioned act on this weakened area during the transport of the double walls, as a result of which the risk of the weld seams tearing, and thus the subsequent excessive deformation of the transport anchor, is very high.
  • a similar pressure element made of steel comes from the publication EP 3 029 220 A1 forth.
  • the pressure element is preferably used by spot welding. The welding process also locally changes and weakens the surrounding material, which also reduces stability. In both cases, the welded connections to the Break the lifting anchor out of the concrete, which in turn can cause the precast concrete to fall.
  • the DE 20 2014 103 774 U1 describes a transport anchor in which steel pressure element is slidably held on the base body. Basically, the pressure element should remain in its position due to the diameter of through openings, unless larger forces are exerted from the outside: this can certainly not be guaranteed. In this respect, the pressure element can also shift during installation, which leads to corresponding disadvantages.
  • transport anchors which, instead of a pressure element, are not made of steel but of a flexible material, for example wood.
  • Wood is able to absorb the forces that occur, but does not detach from the anchor legs. It is disadvantageous, however, that wood can absorb liquid, which on the one hand leads to rotting of the pressure element, but on the other hand can also freeze and expand. Both are disadvantageous, since damage can still occur in the double wall or the precast concrete part afterwards.
  • the DE 10 2005 009708 A1 describes, for example, a variant in which the pressure element can be made of textile concrete. However, it is also essential in this variant that the pressure element should be compliant to transverse pressure. In this respect, detachment from the double wall is also possible with this variant.
  • the object of the invention is to provide a transport anchor which does not have the disadvantages mentioned above.
  • the transport anchor should still be inexpensive to manufacture and enable safe use. Furthermore, the transport anchor should not lead to damage or disadvantages even if it later remains in the double wall.
  • the task also consists in proposing a method for producing such a transport anchor.
  • the object of the invention is achieved in that the pressure element consists entirely of reinforcement-free concrete.
  • a method according to the invention for issuing such a transport anchor results from the independent method claim.
  • the pressure element is cast individually and adapted to the transport anchor to be manufactured.
  • the pressure element consists of concrete, since the pressure element then consists of the same material as the double walls into which it is poured. Thus, even after installing the double walls, there are no physical differences or disadvantages between the double walls and the pressure element.
  • the pressure element is connected to the anchor legs in the same way as the double walls themselves.
  • This has the advantage that occurring forces act and are distributed equally.
  • a very stiff steel or a pressure element made of wood there are no deviating conditions in the transition area between the anchor legs and the pressure element.
  • the use of steel or wood pressure elements causes a very rigid and rigid behavior in this transition area, which in turn can lead to compensating movements of the anchor legs and thus to detachment from the double walls.
  • the local change in the welding area and breaking of weld seams, which is usually caused by welding, is excluded.
  • the concrete pressure element according to the invention is furthermore watertight, a transfer of moisture via the pressure element from one double wall to the other is thus prevented. This is not the case, in particular, in the case of pressure elements made of wood and tubular, internally hollow pressure elements made of steel.
  • the pressure element can have any cross-section; round, oval, rectangular or triangular cross-sections are particularly suitable.
  • the pressure element is made entirely of concrete, it is not mixed with a reinforcing material, such as fibers, nets or other elements made of steel or an alternative material with high tensile strength.
  • the pressure element can be arranged in the region of the transport anchor in which the anchor legs run essentially parallel to one another.
  • the pressure element can also be in a transition region between the arcuate central section and the ones parallel to one another extending anchor legs may be arranged.
  • an arrangement within the arcuate central section is also conceivable.
  • the central section can be formed by two straight leg sections that run towards one another and are connected to one another via a relatively short arc.
  • the central section thus has an approximately triangular shape overall.
  • the arc-shaped base body can also run curved over its entire length.
  • the anchor legs can be straight over their entire length, but alternatively they can also have free end regions which are formed from the otherwise straight extension of the anchor legs.
  • the shaping can take place in all directions, for example towards one another, away from one another, or parallel to one another, or in different directions.
  • the base body is usually made of steel. According to the invention, however, this can also consist of a wire or wire rope. It is preferable to use a stainless steel cable, for example a galvanized steel cable, but it is also conceivable to use a rope with sufficient tensile strength, for example made of Kevlar or carbon.
  • a cable or rope makes manufacturing easier and faster due to the flexibility. Since a wire or steel rope consists of a plurality of strands or wires, the use of the transport anchor according to the invention is safer. Usually, not all strands tear at the same time, but individually, so that there is often still time to remove the double walls before the rope breaks completely.
  • the pressure element can have a length that does not protrude beyond a maximum width of the base body.
  • the pressure element is thus arranged between the two arm legs.
  • the pressure element can have grooves at its two free ends, through which an arm leg extends in each case.
  • the pressure element can have a length that exceeds the maximum width of the base body.
  • the free ends of the pressure element protrude laterally beyond the base body.
  • the pressure element can have a continuous opening for each anchor leg, through which the respective anchor leg extends; alternatively, correspondingly deep grooves are also conceivable.
  • the openings for pushing through the base body or the armature legs can preferably run obliquely or be offset from one another, so that the armature legs are led through the pressure element at an angle and do not run parallel to one another.
  • the distance between the two anchor legs increases in the direction of their free ends. This is particularly advantageous if the base body is formed by a flexible steel cable. In this case, the arcuate central section above the pressure element deforms when the component to be transported is lifted. The arcuate central section is stretched. Under load, the anchor legs therefore run straight through the pressure element due to the inclined openings.
  • the pressure element is either connected to the base body in a stationary manner, that is to say immovably, but it can also be provided that the base body at least towards one another along the anchor legs.
  • the base body of a transport anchor according to the invention can preferably be shortened in that the free ends have cross-sectional reinforcements, for example in the form of pipe sections or cylindrical bodies. As a result, the connection of the base body or the anchor leg to the respective double wall is improved.
  • the cross-sectional reinforcements can also be made of a different material.
  • a fixedly connected or removable fixing element can advantageously also be provided, which is approximately parallel to the Pressure element runs.
  • This can also consist of steel, but also of plastic or another suitable material.
  • the free ends of the anchor legs taper. This makes it easier to insert the anchors into the double walls, especially if they have a steel rating.
  • the pressure element has a separating body in its course, which divides the pressure element into two areas, so to speak.
  • This separating element can bring about thermal decoupling, which in turn is advantageous for the durability of the transport anchor, in particular after the double walls have been installed.
  • the separating body is made of a material that is able to absorb the high forces.
  • a transport anchor according to the invention can preferably be produced by first prefabricating the pressure element and then connecting it to the base body.
  • the method step of manufacturing the pressure element can also be combined with the assembly with the base body.
  • the pressure element is manufactured, arranged in the base body and fixed with it in only one method step.
  • the pressure element can be produced using a captive and an captive form. The shape can be made in several parts or in one part.
  • the pressure element can preferably be produced by filling a tubular, cylindrical basic shape with concrete. After the concrete has hardened, the basic shape, which consists, for example, of plastic, can remain on the pressure element. Even before filling with concrete, the basic shape is preferably connected to the basic body or to the anchor legs. This method is quick and simple, but has the disadvantage that liquid concrete material can flow out through the openings for the base body when filling or pouring out the base mold. This is due in particular to the fact that the openings must have a somewhat larger diameter than the anchor legs.
  • the cylindrical basic shape is made up of several parts. At the end of each cylindrical base body there are cover elements with openings for inserting the anchor legs.
  • the cover elements are essentially cup-shaped and are attached with their open side to the ends of the cylindrical base body.
  • the free end faces of the cylindrical base body can be designed and arranged parallel to one another, but they can also run obliquely to one another.
  • the insertable cover elements also have inclined surfaces on their side facing the base body, so that when the three elements are assembled, a completely straight shape results.
  • the openings for pushing through the base body or the armature legs are preferably arranged obliquely or offset from one another, so that the armature legs are passed through the pressure element at an angle and do not run parallel to one another.
  • FIGS. 1 to 21 show different variants of a transport anchor 20.
  • This has a base body with an arc-shaped central section 24 and adjoining, parallel armature legs 26. Furthermore, a pressure element 28 arranged between the armature legs 26 is shown.
  • FIGS. 1 and 2 further illustrate that a length L of the pressure element 28 in the exemplary embodiment shown minimally exceeds a width B of the transport anchor 20 or of the base body.
  • the pressure element 28 can also be designed such that it does not exceed the width B of the transporter 20.
  • the base body preferably consists of steel, a steel cable or a cable made of another resistant, suitable material.
  • the pressure element 28 is formed from concrete.
  • the pressure element 28 can be arranged at various points in the course of the base body.
  • the Figures 1 and 2 show, by way of example, two positioning options, namely in a transition region 30 between the armature legs 26 and the arcuate central section, or between the armature legs 26 running parallel to one another be arranged within the arcuate central portion 24.
  • the arcuate central section 24 can have a substantially triangular shape, formed by two straight leg sections 32 which merge into a relatively narrow arc 34.
  • the arcuate central section 24 can also be designed as an arc as a whole, for example in FIGS Figures 3 to 6 shown.
  • the armature legs 26 can be made conical or tapering at their free ends, but can also be at the free ends
  • Cross-sectional reinforcements 36 may be provided.
  • the Figures 5 to 12 show different design variants of such cross-sectional reinforcements 36 in combination with different arc-shaped central sections 24. It is explicitly pointed out that further combinations are conceivable and sensible.
  • the cross-sectional reinforcements 36 can consist of the same material as the base body, but they can also be made of other materials.
  • FIGS. 13 and 14 illustrate a particularly advantageous embodiment of the invention.
  • a separating body 38 is provided, which divides the pressure element 28 into two separate areas, a first pressure element section 40 and a second pressure element section 42.
  • the separating body 38 is used in particular for the thermal decoupling of the two pressure element sections 40, 42. This effectively prevents an unwanted cold bridge between the two double walls.
  • a wire body 46 is shown, each of which surrounds an armature leg 26.
  • the wire body 46 reinforces the pressure element 28 on the one hand, but also brings about a better attachment to the armature leg 26.
  • the pressure element 28 can have further elements for reinforcement, for example braids, fibers made of steel or plastic.
  • FIGS 17 and 18 show a fixing element 48 which runs essentially parallel to the pressure element 28 and holds the two armature legs 26 in position or holds them towards one another under pretension.
  • the fixing element 48 By connecting, preferably welding, the fixing element 48 to the two anchor legs 26, the total length of the anchor legs 26 and thus the entire transport anchor 20 can be shortened.
  • the show purely by way of example Figures 19 and 20 an embodiment variant in which the free ends of the armature legs 26 are formed from the essentially straight direction of the armature legs 26.
  • the armature legs 26 each have an end section 50 running transversely to the actual course of the armature legs 26
  • the end sections 50 extend at right angles in different directions, but alternatively they can also be arranged tapering toward one another or at different angles away from the anchor legs 26.
  • FIG. 21 shows a further advantageous embodiment of the invention.
  • the pressure element 28 is formed in a basic form, which is made in three parts.
  • the basic shape is filled with concrete and remains on the transport anchor 20, it has a base body 60 and two cover elements 62.
  • the cover elements 62 with openings 52 for pushing through the armature legs 26 connect to the end of the cylindrical base body 60.
  • the cover elements 62 are essentially cup-shaped and are attached with their open side to the ends of the cylindrical base body 60.
  • the free end faces of the cylindrical base body 60 run obliquely to one another in the exemplary embodiment shown.
  • the plug-in cover elements 62 also have inclined surfaces on their side facing the base body 60, so that when the three elements 60, 62 are in the assembled state, there is a consistently straight shape.
  • the openings 52, through which the armature legs 26 extend, run obliquely or offset from one another, so that the armature legs 26 are passed through the pressure element 28 at an angle and do not run parallel to one another.
  • the base body is formed from a steel cable.
  • each type of the arcuate central section 24 can be combined with all different variants of the arrangement of the pressure element 28 or end sections 50.
  • the armature legs 26 extend through openings 52 of the respective pressure element 28.
  • grooves (not shown) formed at the end can also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (17)

  1. Ancre de transport (20) pour doubles parois, comprenant
    - un corps de base en forme d'étrier, avec
    - une section centrale (24) en forme d'arc destinée à accrocher des dispositifs d'élingage,
    - deux branches d'ancre (26) qui s'étendent à partir de ladite section centrale (24) et s'étendent pour l'essentiel parallèlement l'une à l'autre,
    - un élément de pression (28) disposé entre les branches d'ancre (26),
    caractérisée par le fait que ledit élément de pression (28) est constitué entièrement de béton exempt de matériau de renfort.
  2. Ancre de transport (20) selon la revendication 1, caractérisée par le fait que l'élément de pression (28) présente une forme en coupe transversale du groupe comprenant ronde, ovale, rectangulaire ou triangulaire.
  3. Ancre de transport (20) selon la revendication 1 ou 2, caractérisée par le fait que l'élément de pression (28) est disposé dans une zone de transition (30) entre la section centrale (24) et les branches d'ancre (26).
  4. Ancre de transport (20) selon la revendication 1 ou 2, caractérisée par le fait que l'élément de pression (28) est agencé dans le tracé des branches d'ancre (26) s'étendant parallèlement l'une à l'autre.
  5. Ancre de transport (20) selon l'une quelconque des revendications 1 à 4, caractérisée par le fait qu'une longueur L de l'élément de pression (28) est inférieure à une largeur B de l'ancre de transport (20).
  6. Ancre de transport (20) selon l'une quelconque des revendications 1 à 4, caractérisée par le fait que la longueur L de l'élément de pression (28) est supérieure à la largeur B de l'ancre de transport (20) de sorte que l'élément de pression (28) dépasse latéralement le corps de base.
  7. Ancre de transport (20) selon l'une quelconque des revendications 1 à 6, caractérisée par le fait que l'élément de pression (28) présente des ouvertures (52) à travers lesquelles s'étend respectivement une branche d'ancre (26).
  8. Ancre de transport (20) selon l'une quelconque des revendications 1 à 6, caractérisée par le fait que l'élément de pression (28) présente aux extrémités respectivement une rainure à travers laquelle s'étend respectivement une branche d'ancre (26).
  9. Ancre de transport (20) selon l'une quelconque des revendications 1 à 8, caractérisée par le fait qu'un corps de séparation (38) thermiquement isolant est prévu dans le tracé de l'élément de pression (28), qui divise l'élément de pression (28) en une première section d'élément de pression (40) et en une deuxième section d'élément de pression (42).
  10. Ancre de transport (20) selon l'une quelconque des revendications 1 à 9, caractérisée par le fait que le corps de base est réalisé en acier.
  11. Ancre de transport (20) selon l'une quelconque des revendications 1 à 9, caractérisée par le fait que le corps de base est fait à partir de câble en acier.
  12. Ancre de transport (20) selon l'une quelconque des revendications 1 à 11, caractérisée par le fait qu'un élément de fixation (48) est prévu qui s'étend pour l'essentiel parallèlement à l'élément de pression (28) et fixe les branches d'ancre (26) dans leur position.
  13. Ancre de transport (20) selon l'une quelconque des revendications 1 à 12, caractérisée par le fait que les branches d'ancre (26) présentent des renforts de coupe transversale (36) à leurs extrémités libres.
  14. Ancre de transport (20) selon l'une quelconque des revendications 1 à 13, caractérisée par le fait que les branches d'ancre (26) présentent chacune à leurs extrémités libres une section d'extrémité (50) qui s'étend transversalement à l'extension sensiblement droite des branches d'ancre (26).
  15. Procédé de fabrication d'une ancre de transport (20) selon l'une quelconque des revendications 1 à 14, caractérisé par les étapes de procédé consistant à
    - fabriquer un corps de base en forme d'étrier comprenant une sec tion centrale (24) en forme d'arc et deux branches d'ancre (26) qui s'étendent à partir de ladite section centrale (24) et s'étendent pour l'essentiel parallèlement l'une à l'autre,
    - fabriquer un élément de pression (28) à partir de béton complète ment exempt de matériau de renfort,
    - disposer et relier l'élément de pression (28) au corps de base.
  16. Procédé selon la revendication 15, caractérisé par le fait que l'élément de pression (28) est préfabriqué et est ensuite relié au corps de base.
  17. Procédé selon la revendication 15, caractérisé par le fait que la fabrication de l'élément de pression (28) et la liaison de l'élément de pression (28) au corps de base s'effectuent en une seule étape de procédé.
EP17196017.2A 2016-10-11 2017-10-11 Ancre de transport Active EP3309327B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17196017T PL3309327T3 (pl) 2016-10-11 2017-10-11 Kotwa transportowa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016119352.6A DE102016119352A1 (de) 2016-10-11 2016-10-11 Transportanker

Publications (2)

Publication Number Publication Date
EP3309327A1 EP3309327A1 (fr) 2018-04-18
EP3309327B1 true EP3309327B1 (fr) 2020-07-08

Family

ID=60083157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17196017.2A Active EP3309327B1 (fr) 2016-10-11 2017-10-11 Ancre de transport

Country Status (4)

Country Link
EP (1) EP3309327B1 (fr)
DE (1) DE102016119352A1 (fr)
LT (1) LT3309327T (fr)
PL (1) PL3309327T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3918153B1 (fr) * 2019-01-28 2023-06-07 Econac bvba Ancrage de transport comprenant un élément de pression et procede de production d'un tel ancrage de transport

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL427814A1 (pl) * 2018-11-19 2019-05-06 Szulc Aleksander Przed Produkcyjno Handlowe Alruno Kotwa transportowa do ścian z pustką
EP3851616B1 (fr) * 2020-01-20 2022-10-12 Georg Weidner Ancre de transport pourvue de bande de maintien
EP4273349A1 (fr) * 2022-05-04 2023-11-08 Georg Weidner Espaceur mural à étrier en u

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Publication number Priority date Publication date Assignee Title
FR2159792A5 (fr) * 1971-11-12 1973-06-22 Tenar Ag
DE10038249B4 (de) 1999-08-12 2006-02-09 Syspro-Gruppe Betonbauteile E.V. Transportanker für sogenannte Doppelwände
DE10127870A1 (de) * 2001-06-08 2002-12-12 Georg Weidner Transport- oder Verlegeanker für Hohl- und Filigranwände mit Arretier- oder Sicherungsabschnitt
DE102005009708B4 (de) * 2005-03-03 2009-08-13 Pape, Heinz, Dr.-Ing Transportanker für vorgefertigte Stahlbetonelemente
DE202014103774U1 (de) * 2014-08-14 2015-11-17 Philipp Gmbh Hohlwandanker
EP3029220B1 (fr) 2014-12-02 2021-09-29 Ikona AG Système à ancrage de transport de doubles parois préfabriquées béton/acier

Non-Patent Citations (1)

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Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3918153B1 (fr) * 2019-01-28 2023-06-07 Econac bvba Ancrage de transport comprenant un élément de pression et procede de production d'un tel ancrage de transport

Also Published As

Publication number Publication date
PL3309327T3 (pl) 2020-12-14
DE102016119352A1 (de) 2018-04-26
EP3309327A1 (fr) 2018-04-18
LT3309327T (lt) 2020-10-12

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