EP3263787B1 - Élément structural en béton préfabriqué, en particulier plaque en béton préfabriqué, ancrage de transport pour un tel élément en béton - Google Patents

Élément structural en béton préfabriqué, en particulier plaque en béton préfabriqué, ancrage de transport pour un tel élément en béton Download PDF

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Publication number
EP3263787B1
EP3263787B1 EP17173407.2A EP17173407A EP3263787B1 EP 3263787 B1 EP3263787 B1 EP 3263787B1 EP 17173407 A EP17173407 A EP 17173407A EP 3263787 B1 EP3263787 B1 EP 3263787B1
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EP
European Patent Office
Prior art keywords
anchor
transport
cast concrete
component
transport anchor
Prior art date
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Active
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EP17173407.2A
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German (de)
English (en)
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EP3263787A1 (fr
Inventor
Michael Kispert
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BTE Stelcon GmbH
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BTE Stelcon GmbH
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Priority to PL17173407T priority Critical patent/PL3263787T3/pl
Publication of EP3263787A1 publication Critical patent/EP3263787A1/fr
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • 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
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
    • 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

Definitions

  • Prefabricated concrete components or prefabricated concrete slabs of the type described above are basically known from practice in different embodiments.
  • the precision of the height adjustment often leaves something to be desired during assembly or laying. If, on the other hand, an exact height adjustment is achieved with known components, this is usually associated with considerable effort.
  • a filling material or grouting material is usually filled in between the underside of the component and the assembly substrate for the component. This filling of the filling material / grouting material is also complex and difficult in the known solutions and / or the filling of the cavity does not take place with the desired completeness.
  • the known measures can be improved
  • KR-2015-0057581-A discloses a precast concrete component, in particular a precast concrete slab, according to the preamble of claim 1.
  • the invention is based on the technical problem of specifying a prefabricated concrete component or a prefabricated concrete slab of the type mentioned, which can initially be easily fixed to a transport device and can be transported with the transport device without any problems and which also allows precise and simple height adjustment and on the other hand, a simple and complete filling of a filling material or grouting material is allowed.
  • the invention teaches a precast concrete component, in particular a precast concrete slab, according to claim 1.
  • the invention is based on the knowledge that the precast concrete component according to the invention or the transport anchor according to the invention integrated therein allows simple and safe transport of the component and also allows very simple and precise height adjustment of the assembled component and also enables a safe and complete filling of a filling material or grouting material.
  • the lifting anchor according to the invention has several tasks that are nonetheless effectively and functionally solved.
  • the transport anchor according to the invention is designed to be hollow on the inside, at least in some areas and preferably over its entire length.
  • the transport anchor thus recommended has a cavity which extends in the direction of its longitudinal axis L over its entire length.
  • the diameter of the cavity is expediently at least 70%, preferably at least 75%, very preferably at least 80% and particularly preferably at least 85% of the outer diameter of the transport anchor.
  • the transport anchor is round in cross section and preferably circular or essentially circular.
  • a particularly recommended embodiment of the invention is characterized in that the precast concrete component according to the invention or a precast concrete slab according to the invention is designed for a drivable underground, for example for a drivable road, a drivable parking deck or the like.
  • the thickness of a precast concrete slab according to the invention is recommended to be 50 to 200 mm, preferably 70 to 150 mm and particularly preferably 75 to 140 mm.
  • a transport anchor according to the invention extends over at least 60%, preferably over at least 65%, preferably over at least 60% and very preferably over at least 75% of the thickness of a precast concrete slab.
  • a precast concrete slab according to the invention is rectangular in plan view. The side lengths of such a rectangular plate are according to a recommended embodiment in each case 800 to 3000 mm according to an embodiment variant 900 to 2000 mm and in particular 1000 to 1500 mm.
  • a plurality of transport anchors is concreted into the precast concrete component according to the invention and in particular into the precast concrete slab according to the invention.
  • a component or a plate is recommended to have 2 to 8 transport anchors, preferably 2 to 6 transport anchors, which are concreted into the component or into the plate.
  • the longitudinal axis L of a lifting anchor is oriented transversely, in particular perpendicular or essentially perpendicular to the mounting base.
  • Assembly subsurface means the subsurface or the floor / ground on which a precast concrete component according to the invention or a precast concrete slab according to the invention is mounted or laid.
  • the longitudinal axis L of a transport anchor is arranged transversely, in particular perpendicular or substantially perpendicular to the upper side or to the upper side of the component or plate that can be driven on.
  • the top side means the side of the component or plate facing away from the mounting base.
  • a transport anchor according to the invention is composed of two part anchors which are connected to one another at their ends facing one another and are particularly preferably welded to one another.
  • the two longitudinal axes of the part anchors expediently complement one another to form the longitudinal axis L of the entire transport anchor.
  • a tried and tested embodiment is characterized in that the two part anchors are fastened to one another via fixing flanges arranged at their mutually facing ends and are preferably welded to one another. It has proven that an upper part anchor extends through the upper half of the component or the plate and that preferably a lower part anchor extends through a lower half of the component or the plate. Above and below refer here to the mounted or laid state of the component / plate.
  • the two partial anchors each have a fixing flange at their ends facing one another and that the fixing flanges extend transversely, preferably perpendicular or substantially perpendicular to the longitudinal axis L of the transport anchor and preferably perpendicular to the two longitudinal axes of the two partial anchors .
  • the fixing flanges of the two part anchors are expediently embedded in concrete in the component or in the plate. As has been proven, a fixing flange runs around the circumference of the associated partial anchor and such a fixing flange is preferably concreted in the component or in the plate with respect to its entire circumference.
  • a transport anchor according to the invention is concreted into the component or into the plate over its entire length. Then, in the embodiment with the two part anchors, both part anchors are concreted into the component or into the plate over their entire length. It is recommended that the upper end of the transport anchor is at a distance from the top of the component or the plate, and preferably the lower end of the transport anchor is also at a distance from the underside of the component or the plate.
  • the component or the plate can be fixed to a transport device by means of a transport anchor.
  • the transport anchor has a fixation device for fixing the transport anchor to the transport device, the fixation device expediently at the upper end of the transport anchor is provided.
  • the fixation device is designed as a fixation thread and particularly preferably as an internal fixation thread of the transport anchor.
  • This fixation thread or fixation internal thread is preferably provided in the embodiment with the two part anchors in the upper part anchor or at the upper end of the upper part anchor.
  • the fixation thread or fixation internal thread has proven to extend over the majority of the length of the upper part anchor, in particular over more than 50% of the length of the upper part anchor. It is recommended that the fixation thread or the fixation internal thread extend over at least 20%, preferably over at least 25%, preferably over at least 30% and very preferably over at least 35% of the length of the transport anchor according to the invention.
  • the transport anchor has at least one and preferably only one adjustable or displaceable adjusting element and with this adjusting element the distance between the component or the distance between the underside of the component and a mounting surface can be adjusted.
  • the adjusting element is designed as a screwable adjusting tube, this adjusting tube being displaced relative to the rest of the transport anchor in the direction of the longitudinal axis L of the transport anchor during a screwing process or when screwing.
  • the adjustment element or the adjustment tube is preferably equipped with an adjustment thread for this screwing capability.
  • the screwable adjusting tube can expediently be unscrewed from the underside of the component / plate and also screwed back into the underside of the component / plate.
  • the screwable adjustment tube can be screwed into an internal adjustment thread of the transport anchor or of the lower partial anchor provided at the lower end of the transport anchor.
  • the internal adjustment thread expediently extends over at least 10%, preferably over at least 15%, preferably over at least 20% and very preferably over at least 25% of the length of the entire transport anchor.
  • the adjustment internal thread extends over at least 30%, preferably over at least 35%, preferably over at least 40% and very preferably over at least 45% of the length of the lower part anchor.
  • the upper side of the screwable adjusting tube is equipped with actuating elements, in particular in the form of cross recess recesses, so that the adjusting tube can be screwed by means of an actuating tool interacting with the actuating elements, in particular in the form of a cross recess tool.
  • the actuating elements or cross-slot recesses are expediently provided on the upper edge of the wall of the adjusting tube. Then, according to a proven embodiment, the adjusting tube can be operated from above through the cavity of the transport anchor with an operating tool or cross-head tool.
  • a transport anchor according to the invention is designed to be hollow on the inside, a cavity extending in the direction of the longitudinal axis L of the transport anchor which forms the filling channel for the filling material or the grouting material.
  • This filling material or pressing material is filled or pressed into the space between the underside of the component / plate and the mounting base.
  • the filling channel extends through the inside hollow adjustment element or extends through the internally hollow adjustment tube. The filling channel expediently extends into the space between the underside of the component / plate and the mounting base. It is recommended that the adjusting element or the adjusting tube has at least one outlet opening for the filling material / grouting material at its lower end.
  • the at least one outlet opening is preferably provided in a side wall of the internally hollow adjusting tube.
  • a particularly preferred embodiment of the invention is characterized in that a plurality of outlet openings for the filler material are provided on the adjustment tube, expediently at least two outlet openings, which are preferably arranged in the side wall of the internally hollow adjustment tube.
  • a particularly proven embodiment is characterized in that at least two diametrically opposite outlet openings are arranged in the side wall of the internally hollow adjusting tube.
  • a recommended embodiment of the invention is characterized in that the transport anchor rests with its lower end on at least one elastic support element in the assembled or laid state of the component / plate.
  • the adjusting element / adjusting tube fixed or screwed into the transport anchor preferably rests with its lower end on the at least one support element.
  • the elastic support element is in particular a support element or a support plate made of rubber or of an elastic plastic.
  • shredded rubber tires can be used as the material for the support element.
  • a subsurface in particular a drivable subsurface, is realized with a plurality or with a plurality of precast concrete slabs arranged next to one another - for example with 300 to 400 precast concrete slabs. It is within the scope of the invention that each of these prefabricated concrete slabs has a plurality of transport anchors embedded in concrete - in particular 3 to 6, for example 4 transport anchors embedded in concrete. Each precast concrete slab preferably takes up an area of 4 to 10 m 2 , preferably 6 to 8 m 2 .
  • the precast concrete slabs for creating the subsurface or the drivable subsurface are initially arranged in the desired positions by means of at least one transport device - for example by means of a transport crane, the precast concrete slabs being fixed to the transport device via their transport anchors. After positioning the precast concrete slabs, the slabs are then expediently adjusted in height by means of the adjustment elements provided in the transport anchors with respect to their distance or with respect to their vertical distance from the mounting base. It is within the scope of the invention that this adjustment is carried out through the transport anchors, which are open at the top, or through the filling channel of the transport anchors.
  • the space between the panels and the assembly subsurface is expediently filled with backfill material.
  • the backfill material is introduced into the intermediate space in a transport anchor that is open at the top through the cavity of the transport anchor or through the filling channel of the transport anchor.
  • a particular advantage of the invention lies in the fact that a single component - namely a transport anchor according to the invention - can fulfill three functions, firstly the fixing function with regard to the fixation of the precast concrete slab on the transport device, secondly the adjustment function with regard to the actuation of the adjustment element through the transport anchor and thirdly, the filling function in relation to the filling or potting of the space between the panels and the mounting surface. Due to this multiple function of the transport anchors according to the invention, the prefabricated concrete slabs can be used to create a traffic area with as few openings as possible by only providing the openings for the transport anchors in the prefabricated concrete slabs or being available for all functions. - In the context of the invention, the elastic support element is of particular importance.
  • the main load of the panels would (still) be taken over by the transport anchors placed on the mounting surface.
  • the adjustment elements of the transport anchors would have to be reset or screwed back in order to distribute the loads.
  • the elastic support elements arranged under the transport anchors have the advantageous effect that it is not necessary to reset or screw back the adjustment elements and that, nevertheless, an optimal load distribution takes place.
  • the invention thus relates to a transport anchor for setting in concrete in a precast concrete part, in particular in a precast concrete slab, the transport anchor having a fixation device for fixing to a transport device, the transport anchor furthermore comprising at least one, preferably only one adjustable or displaceable adjustment element, with this adjustment element is the distance to a mounting surface adjustable and wherein the transport anchor has at least one filling channel for filling in a filling material or grouting material between the component and the mounting base.
  • the invention is based on the knowledge that a plurality of functions can be effectively fulfilled with the component according to the invention and in particular with the transport anchor according to the invention.
  • the transport anchor In addition to being fixed to a transport device, the transport anchor also serves as an adjustment aid for the vertical adjustment of the structure or the plate. Surprisingly, this adjustment can be carried out very precisely and easily with the at least one adjustment element of the transport anchor.
  • the transport anchor according to the invention and in particular the transport anchor in combination with its adjusting element can serve as a filling channel for a filling material or grouting material.
  • the transport anchor according to the invention can also be used for this purpose in a simple, inexpensive and effective manner.
  • the upwardly open opening of a transport anchor serves both to fix the component on a transport device and as access for adjusting an adjusting element and can also be used for filling in the filling material or grouting material. Due to this multi-functional character of the transport anchors and their openings or cavities, concrete components or concrete slabs can be realized with only a small number of interruption openings. It should also be emphasized that a component according to the invention with integrated transport anchors can be produced in a simple and inexpensive manner.
  • the figures show a precast concrete component according to the invention in the form of a precast concrete slab 1.
  • a plurality of transport anchors 2 may be concreted into this precast concrete slab 1.
  • a transport anchor 2 is shown.
  • Such a transport anchor 2 is used to fix the precast concrete slab 1 on a transport device, for example on a crane or the like.
  • the transport anchor 2 has a fixing device in the form of a fixing internal thread 3 at its upper end.
  • the transport anchor 2 or the precast concrete slab 1 is fixed to the transport device, for example to a crane, via this internal fixing thread 3.
  • the fixing internal thread 3 extends preferably and in the exemplary embodiment over at least 30% of the length of the transport anchor 2.
  • the longitudinal axis L of the lifting anchor 2 is oriented transversely or essentially perpendicular to the mounting base 4. Furthermore, this longitudinal axis L is expediently and in the exemplary embodiment arranged perpendicular to the top side 5 of the plate 1.
  • the transport anchor 2 is designed to be hollow on the inside and a cavity 17 extends over the entire length of the transport anchor 2.
  • the transport anchor 2 is composed of two part anchors 6, 7, which are connected at their mutually facing ends; - In the exemplary embodiment, welded to one another via fixing flanges 8 connected there.
  • the upper part anchor 6 extends through the upper half of the plate 1 and the lower part anchor 7 through the lower half of the plate 1.
  • the two fixing flanges 8 each run around and extend over the circumference of the associated part anchor 6, 7 perpendicular to the longitudinal axis L of the transport anchor 2.
  • the fixing flanges 8 welded to one another are integrated or set in concrete in the concrete of the plate 1.
  • the transport anchor 2 and thus also the two part anchors 6, 7 are concreted into the slab 1 over their entire length.
  • the concreted-in lifting anchor 2 is at a distance from the upper side 5 of the plate 1 at its upper end and a distance from the lower side 9 of the plate 1 at its lower end.
  • the transport anchor 2 has an adjustable adjustment element with which the distance between the plate 1 and the mounting base 4 can be adjusted and with which a height adjustment of the plate 1 is thus possible.
  • the adjusting element is designed as a screwable adjusting tube 10, the adjusting tube 10 being displaceable relative to the rest of the lifting anchor 2 in the direction of the longitudinal axis L of the lifting anchor 2 when screwed.
  • the adjusting tube is preferably inserted into a tube provided at the lower end of the transport anchor 2 Adjusting internal thread 11 screwed in. This internal adjustment thread 11 is provided in the lower part anchor 7 in the exemplary embodiment.
  • the adjusting tube 10 can be actuated from above through the cavity 17 of the transport anchor 2 by means of a tool.
  • the transport anchor 2 has a filling channel 13 for filling a filling material or grouting material (not shown) into the space 14 between the underside 9 of the plate 1 and the mounting base 4.
  • a filling material or grouting material (not shown) into the space 14 between the underside 9 of the plate 1 and the mounting base 4.
  • the inner cavity 17 of the transport anchor 2 and thus also the cavity of the adjusting tube 10 form this filling channel 13.
  • the filling material or grouting material is therefore filled into the cavity 17 of the transport anchor 2 at the upper end of the transport anchor 2 and passes through this cavity 17 to the space 14 between the underside 9 of the plate 1 and the mounting base 4.
  • the adjusting tube 10 has outlet openings 15 for the filling material at its lower end, the outlet openings 15 preferably and in the exemplary embodiment in a side wall of the hollow adjusting tube 10 are provided.
  • the outlet openings 15 preferably and in the exemplary embodiment in a side wall of the hollow adjusting tube 10 are provided.
  • Fig. 1 is only a front outlet opening 15 recognizable.
  • the transport anchor 2 rests with its lower end on an elastic support element 16 in the mounted or laid state of the plate 1.
  • the lower end of the adjusting tube 10 of the lifting anchor 2 is arranged on the support element 16.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Bridges Or Land Bridges (AREA)

Claims (13)

  1. Élément de construction en béton préfabriqué, notamment dalle en béton préfabriquée (1), pourvu d'au moins une ancre de transport (2) bétonnée dans l'élément de construction, l'élément de construction étant apte à être fixé au moyen de l'ancre de transport (2) sur un dispositif de transport, l'ancre de transport (2) comportant un système de fixation, destiné à fixer l'ancre de transport (2) sur le dispositif de transport, l'ancre de transport (2) comportant au moins un, de préférence uniquement un élément d'ajustage réglable ou translatable, à l'aide dudit élément d'ajustage, l'écart, de préférence l'écart vertical entre l'élément de construction et un support de montage (4) étant réglable et l'ancre de transport (2) comportant au moins un conduit de remplissage (13) pour le chargement d'une matière de remplissage ou d'une matière de compactage entre l'élément de construction et le support de montage (4), caractérisé en ce que l'ancre de transport (2) est composée de deux ancres partielles (6, 7), qui sont assemblées entre elles par leurs extrémités qui se font face, une ancre partielle (6) supérieure s'étendant à travers la moitié supérieure de l'élément de construction ou du panneau (1) et une ancre partielle (7) inférieure s'étendant à travers une moitié inférieure de l'élément de construction ou du panneau (1), les deux ancres partielles (6, 7) étant bétonnées sur toute leur longueur dans l'élément de construction ou dans le panneau (1), le système de fixation étant prévu dans l'ancre partielle (6) supérieure.
  2. Élément de construction en béton préfabriqué selon la revendication 1, caractérisé en ce que l'élément de construction en béton préfabriqué est une dalle en béton préfabriquée (1) pour un support praticable, notamment pour une route praticable ou similaire.
  3. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que dans l'élément de construction en béton préfabriqué ou dans la dalle en béton préfabriquée (1) est/sont bétonnée(s) une multiplicité d'ancres de transport (2), de préférence de 2 à 6 ancres de transport (2).
  4. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'axe longitudinal L de l'ancre de transport (2) est orienté à la transversale, notamment à la perpendiculaire ou sensiblement à la perpendiculaire du support de montage (4) et/ou de la face supérieure (5) ou de la face supérieure (5) praticable de l'élément de construction.
  5. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les deux ancres partielles (6, 7) sont soudées l'une à l'autre sur leurs extrémités qui se font face, de préférence par l'intermédiaire de brides de fixation (8).
  6. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 5, caractérisé en ce que sur leurs extrémités qui se font face, les deux ancres partielles (6, 7) comportent respectivement une bride de fixation (8) et les brides de fixation (8) s'étendant à la transversale, de préférence à la perpendiculaire ou sensiblement à la perpendiculaire de l'axe longitudinal L de l'ancre de transport (2) et étant opportunément bétonnées dans l'élément de construction.
  7. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le système de fixation est conçu sous la forme d'un filetage de fixation ou d'un taraudage de fixation (3) de l'ancre de transport (2).
  8. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'élément d'ajustage est conçu sous la forme d'un tube d'ajustage (10) à visser, lors d'un vissage, le tube d'ajustage (10) étant translatable par rapport au reste de l'ancre de transport (2) dans la direction de l'axe longitudinal (L) de l'ancre de transport (2) et de préférence le tube d'ajustage (10) s'engageant dans un taraudage d'ajustage (11) de l'ancre de transport (2) ou de l'ancre partielle (7) inférieure, prévu sur l'extrémité inférieure de l'ancre de transport (2)
  9. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'ancre de transport (2) est conçue avec un intérieur creux, la cavité (17) qui s'étend dans la direction de l'axe longitudinal L de l'ancre de transport (2) formant le conduit de remplissage (13) pour la matière de remplissage ou la matière de compactage.
  10. Élément de construction en béton préfabriqué selon la revendication 9, caractérisé en ce que le conduit de remplissage (13) s'étend à travers l'élément d'ajustage creux ou à travers le tube d'ajustage (10) à intérieur creux.
  11. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 10, caractérisé en ce que sur l'extrémité inférieure, l'élément d'ajustage ou le tube d'ajustage (10) comporte au moins un orifice de sortie (15) pour la matière de remplissage ou la matière de compactage et de préférence l'au moins un orifice de sortie (15) étant prévu dans une paroi latérale du tube d'ajustage (10) à intérieur creux.
  12. Élément de construction en béton préfabriqué selon l'une quelconque des revendications 1 à 11, caractérisé en ce lorsque l'élément de construction ou la dalle (1) est montée(e) ou posé(e), l'ancre de transport (2) repose par son extrémité inférieure sur au moins un élément d'appui (16) élastique et de préférence l'élément d'ajustage ou le tube d'ajustage (10) reposant par son extrémité inférieure sur l'élément d'appui (16).
  13. Ancre de transport destinée à être bétonnée dans une pièce en béton préfabriquée, prioritairement dans une dalle en béton préfabriquée (1) (notamment selon l'une quelconque des revendications 1 à 12, l'ancre de transport (2) comportant un système de fixation destiné à être fixé sur un dispositif de transport, l'ancre de transport (2) comprenant en outre au moins un, de préférence uniquement un élément d'ajustage réglable ou translatable, à l'aide dudit élément d'ajustage, l'écart par rapport à un support de montage (4) étant réglable et l'ancre de transport (2) comportant au moins un conduit de remplissage (13) pour le chargement d'une matière de remplissage ou d'une matière de compactage, caractérisée en ce que l'ancre de transport (2) se compose de deux ancres partielles (6, 7) qui sont assemblées entre elles par leurs extrémités qui se font face, une ancre partielle (6) supérieure pouvant s'étendre à travers la moitié supérieure de l'élément de construction ou de la dalle (1) et une ancre partielle (7) inférieure pouvant s'étendre à travers une moitié inférieure de l'élément de construction ou de la dalle (1), les deux ancres partielles (6, 7) pouvant être bétonnées sur toute leur longueur dans l'élément de construction ou dans la dalle (1), le système de fixation étant prévu dans l'ancre partielle (6) supérieure.
EP17173407.2A 2016-06-29 2017-05-30 Élément structural en béton préfabriqué, en particulier plaque en béton préfabriqué, ancrage de transport pour un tel élément en béton Active EP3263787B1 (fr)

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US3429092A (en) * 1966-05-26 1969-02-25 Dyna Structures Structural frames and methods and means therefor
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US9347232B1 (en) * 2014-03-10 2016-05-24 Sidney E. Francies, III Lifting and leveling assembly for precast concrete slabs and method
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KR101644784B1 (ko) * 2015-08-25 2016-08-03 한국건설기술연구원 높이 재조정이 가능한 프리캐스트 슬래브의 높이조절장치 및 이를 이용한 프리캐스트 슬래브의 높이조절방법

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DE102016111921A1 (de) 2018-01-04
EP3263787A1 (fr) 2018-01-03

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