EP3263787B1 - Pre-cast concrete component, in particular pre-cast concrete panel, transportation anchor for such a concrete component - Google Patents

Pre-cast concrete component, in particular pre-cast concrete panel, transportation anchor for such a concrete component 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
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
EP17173407.2A
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German (de)
French (fr)
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EP3263787A1 (en
Inventor
Michael Kispert
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.)
BTE Stelcon GmbH
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BTE Stelcon GmbH
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Publication date
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Priority to PL17173407T priority Critical patent/PL3263787T3/en
Publication of EP3263787A1 publication Critical patent/EP3263787A1/en
Application granted granted Critical
Publication of EP3263787B1 publication Critical patent/EP3263787B1/en
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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
    • 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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Description

Beschreibung:Description:

Die Erfindung betrifft ein Fertigbetonbauteil, insbesondere eine Fertigbetonplatte - mit zumindest einem in das Bauteil einbetonierten Transportanker, wobei das Bauteil mittels des Transportankers an einer Transportvorrichtung fixierbar ist. Die Erfindung betrifft weiterhin einen Transportanker zum Einbetonieren in ein Fertigbetonteil.

  • Die erfindungsgemäßen Fertigbetonbauteile bzw. Fertigbetonplatten eignen sich insbesondere für einen befahrbaren Untergrund, beispielsweise für eine befahrbare Straße, ein befahrbares Parkdeck oder dergleichen. - Bei größeren Fertigbetonbauteilen ist der Transport zum Einbauort bzw. zum Montageort eine relevante Aufgabe. Dazu können unter anderem in die Fertigbetonbauteile integrierte Transportanker dienen, die große Lasten aufnehmen können. Diese Transportanker können an einer Transportvorrichtung - beispielsweise an einem Kran oder dergleichen - fixiert werden.
The invention relates to a precast concrete component, in particular a precast concrete slab - with at least one transport anchor concreted into the component, the component being fixable on a transport device by means of the transport anchor. The invention also relates to a transport anchor for setting in concrete in a precast concrete part.
  • The precast concrete components or precast concrete slabs according to the invention are particularly suitable for a drivable underground, for example for a drivable road, a drivable parking deck or the like. - In the case of larger prefabricated concrete components, the transport to the installation site or to the assembly site is a relevant task. Transport anchors integrated into the precast concrete components can be used for this purpose, which can take heavy loads. These transport anchors can be fixed on a transport device - for example on a crane or the like.

Fertigbetonbauteile bzw. Fertigbetonplatten der vorstehend beschriebenen Art sind aus der Praxis grundsätzlich in unterschiedlichen Ausführungsformen bekannt. Bei vielen bekannten Bauteilen bzw. Platten lässt beim Montieren bzw. Verlegen oftmals die Präzision der Höhenjustierung zu wünschen übrig. Wenn andererseits bei bekannten Bauteilen eine genaue Höhenjustierung erzielt wird, ist dies in der Regel mit erheblichem Aufwand verbunden. So ist es beispielsweise bekannt verhältnismäßig aufwendige und kompliziert zu handhabende Justierungseinrichtungen einzusetzen. - Bei der Montage bzw. beim Verlegen der bekannten Bauteile/Platten wird in der Regel zwischen der Unterseite des Bauteils und dem Montage-Untergrund für das Bauteil ein Füllmaterial bzw. Verpressmaterial eingefüllt. Auch dieses Einfüllen des Füllmaterials/Verpressmaterials ist bei den bekannten Lösungen aufwendig und schwierig und/oder die Verfüllung des Hohlraumes erfolgt nicht mit der gewünschten Vollständigkeit. Insoweit sind die bekannten Maßnahmen verbesserungsfähigPrefabricated concrete components or prefabricated concrete slabs of the type described above are basically known from practice in different embodiments. In the case of many known components or panels, 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. For example, it is known to use adjustment devices that are relatively complex and difficult to use. During the assembly or when laying the known components / plates, 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. In this respect, the known measures can be improved

KR-2015-0057581-A offenbart ein Fertigbetonbauteil, insbesondere eine Fertigbetonplatte, nach dem Oberbegriff des Anspruchs 1. KR-2015-0057581-A discloses a precast concrete component, in particular a precast concrete slab, according to the preamble of claim 1.

Dementsprechend liegt der Erfindung das technische Problem zugrunde, ein Fertigbetonbauteil bzw. eine Fertigbetonplatte der eingangs genannten Art anzugeben, das/die zunächst einfach an einer Transportvorrichtung fixierbar und problemlos mit der Transportvorrichtung transportierbar ist und das/die zusätzlich sowohl eine präzise und einfache Höhenjustierung erlaubt sowie zum anderen ein einfaches und vollständiges Einfüllen eines Füllmaterials bzw. Verpressmaterials erlaubt.Accordingly, 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.

Zur Lösung dieses technischen Problems lehrt die Erfindung ein Fertigbetonbauteil, insbesondere eine Fertigbetonplatte, nach Anspruch 1.To solve this technical problem, the invention teaches a precast concrete component, in particular a precast concrete slab, according to claim 1.

Der Erfindung liegt die Erkenntnis zugrunde, dass das erfindungsgemäße Fertigbetonbauteil bzw. der erfindungsgemäße darin integrierte Transportanker einen einfachen und sicheren Transport des Bauteils zulässt und außerdem eine sehr einfache und präzise Höhenjustierung des montierten Bauteils erlaubt sowie weiterhin eine sichere und vollständige Einfüllung eines Füllmaterials bzw. Verpressmaterials ermöglicht. Insoweit kommen dem erfindungsgemäßen Transportanker mehrere Aufgaben zu, die nichtsdestoweniger effektiv und funktionssicher gelöst werden.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. In this respect, the lifting anchor according to the invention has several tasks that are nonetheless effectively and functionally solved.

Es liegt im Rahmen der Erfindung, dass der erfindungsgemäße Transportanker zumindest bereichsweise und bevorzugt über seine gesamte Länge innen hohl ausgebildet ist. Der Transportanker weist somit empfohlenermaßen einen Hohlraum auf, der sich in Richtung seiner Längsachse L über seine gesamte Länge erstreckt. Der Durchmesser des Hohlraums beträgt zweckmäßigerweise zumindest 70 %, bevorzugt zumindest 75 %, sehr bevorzugt zumindest 80 % und besonders bevorzugt zumindest 85 % des Außendurchmessers des Transportankers. Es liegt fernerhin im Rahmen der Erfindung, dass der Transportanker im Querschnitt rund und vorzugsweise kreisförmig bzw. im Wesentlichen kreisförmig ausgebildet ist.It is within the scope of the invention that 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. It is also within the scope of the invention that the transport anchor is round in cross section and preferably circular or essentially circular.

Eine besonders empfohlene Ausführungsform der Erfindung zeichnet sich dadurch aus, dass das erfindungsgemäße Fertigbetonbauteil bzw. eine erfindungsgemäße Fertigbetonplatte für einen befahrbaren Untergrund, beispielsweise für eine befahrbare Straße, ein befahrbares Parkdeck oder dergleichen ausgelegt ist. Die Dicke einer erfindungsgemäßen Fertigbetonplatte beträgt empfohlenermaßen 50 bis 200 mm, bevorzugt 70 bis 150 mm und besonders bevorzugt 75 bis 140 mm. Es empfiehlt sich, dass sich ein erfindungsgemäßer Transportanker über zumindest 60 %, vorzugsweise über zumindest 65 %, bevorzugt über zumindest 60 % und sehr bevorzugt über zumindest 75 % der Dicke einer Fertigbetonplatte erstreckt. Zweckmäßigerweise ist eine erfindungsgemäße Fertigbetonplatte in der Draufsicht rechteckig ausgebildet. Die Seitenlängen einer solchen rechteckigen Platte betragen nach einer empfohlenen Ausführungsform jeweils 800 bis 3000 mm gemäß einer Ausführungvariante 900 bis 2000 mm und insbesondere 1000 bis 1500 mm.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. It is recommended that 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. Appropriately, 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.

Es liegt im Rahmen der Erfindung, dass in das erfindungsgemäße Fertigbetonbauteil und insbesondere in die erfindungsgemäße Fertigbetonplatte eine Mehrzahl von Transportankern einbetoniert ist. Empfohlenermaßen weist ein Bauteil bzw. eine Platte 2 bis 8 Transportanker, bevorzugt 2 bis 6 Transportanker auf, die in das Bauteil bzw. in die Platte einbetoniert sind. - Weiterhin liegt es im Rahmen der Erfindung, dass die Längsachse L eines Transportankers quer, insbesondere senkrecht bzw. im Wesentlichen senkrecht zu dem Montage-Untergrund orientiert ist. Montage-Untergrund meint den Untergrund bzw. den Boden/Erdboden, auf dem ein erfindungsgemäßes Fertigbetonbauteil bzw. eine erfindungsgemäße Fertigbetonplatte montiert bzw. verlegt wird. Gemäß besonders bevorzugter Ausführungsform ist die Längsachse L eines Transportankers quer, insbesondere senkrecht bzw. im Wesentlichen senkrecht zu der Oberseite bzw. zu der befahrbaren Oberseite des Bauteils bzw. der Platte angeordnet. Oberseite meint dabei die dem Montage-Untergrund abgewandte Seite des Bauteils bzw. der Platte.It is within the scope of the invention that 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. Furthermore, it is within the scope of the invention that 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. According to a particularly preferred embodiment, 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.

Es liegt im Rahmen der Erfindung, dass ein erfindungsgemäßer Transportanker aus zwei Teilankern zusammengesetzt sind, die an ihren einander zugewandten Enden miteinander verbunden sind und besonders bevorzugt miteinander verschweißt sind. Zweckmäßigerweise ergänzen sich die beiden Längsachsen der Teilanker zur Längsachse L des gesamten Transportankers. Eine bewährte Ausführungsform ist dadurch gekennzeichnet, dass die beiden Teilanker über an ihren aneinander zugewandten Enden jeweils angeordnete Fixierungsflansche aneinander befestigt sind und vorzugsweise miteinander verschweißt sind. Es hat sich bewährt, dass ein oberer Teilanker sich durch die obere Hälfte des Bauteils bzw. der Platte erstreckt und dass sich vorzugsweise ein unterer Teilanker durch eine untere Hälfte des Bauteils bzw. der Platte erstreckt. Oben und unten beziehen sich hier auf den montierten bzw. verlegten Zustand des Bauteils/der Platte. Es liegt im Rahmen der Erfindung, dass die beiden Teilanker an ihren aneinander zugewandten Enden jeweils einen Fixierungsflansch aufweisen und dass sich die Fixierungsflansche quer, vorzugsweise senkrecht bzw. im Wesentlichen senkrecht zur Längsachse L des Transportankers und bevorzugt senkrecht zu den beiden Längsachsen der beiden Teilanker erstrecken. Zweckmäßigerweise sind die Fixierungsflansche der beiden Teilanker in das Bauteil bzw. in die Platte einbetoniert. Bewährtermaßen läuft ein Fixierungsflansch über den Umfang des zugeordneten Teilankers um und bevorzugt ist ein solcher Fixierungsflansch bezüglich seines gesamten Umfangs in das Bauteil bzw. in die Platte einbetoniert.It is within the scope of the invention that 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. It is within the scope of the invention that 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.

Es liegt im Rahmen der Erfindung, dass ein erfindungsgemäßer Transportanker über seine gesamte Länge in das Bauteil bzw. in die Platte einbetoniert ist. Dann sind bei der Ausführungsform mit den beiden Teilankern beide Teilanker über ihre gesamte Länge in das Bauteil bzw. in die Platte einbetoniert. Empfohlenermaßen weist das obere Ende des Transportankers einen Abstand zur Oberseite des Bauteils bzw. der Platte auf und bevorzugt weist auch das untere Ende des Transportankers einen Abstand zu der Unterseite des Bauteils bzw. der Platte auf.It is within the scope of the invention that 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.

Erfindungsgemäß ist das Bauteil bzw. die Platte mittels eines Transportankers an einer Transportvorrichtung fixierbar. Dazu weist der Transportanker eine Fixierungseinrichtung für die Fixierung des Transportankers an der Transportvorrichtung auf, wobei die Fixierungseinrichtung zweckmäßigerweise am oberen Ende des Transportankers vorgesehen ist. Eine besonders empfohlene Ausführungsform ist dadurch gekennzeichnet, dass die Fixierungseinrichtung als Fixierungs-Gewinde und besonders bevorzugt als Fixierungs-Innengewinde des Transportankers ausgebildet ist. Dieses Fixierungs-Gewinde bzw. Fixierungs-Innengewinde ist bei der Ausführungsform mit den beiden Teilankern vorzugsweise in dem oberen Teilanker bzw. an dem oberen Ende des oberen Teilankers vorgesehen. Das Fixierungs-Gewinde bzw. Fixierungs-Innengewinde erstreckt sich bewährtermaßen über den Großteil der Länge des oberen Teilankers, insbesondere über mehr als 50 % der Länge des oberen Teilankers. Es empfiehlt sich, dass sich das Fixierungs-Gewinde bzw. das Fixierungs-Innengewinde über zumindest 20 %, vorzugsweise über zumindest 25 %, bevorzugt über zumindest 30 % und sehr bevorzugt über zumindest 35 % der Länge des erfindungsgemäßen Transportankers erstreckt.According to the invention, the component or the plate can be fixed to a transport device by means of a transport anchor. For this purpose, 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. A particularly recommended embodiment is characterized in that 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.

Erfindungsgemäß weist der Transportanker zumindest ein und vorzugsweise lediglich ein verstellbares bzw. verschiebbares Justierelement auf und mit diesem Justierelement ist der Abstand des Bauteils bzw. der Abstand der Unterseite des Bauteils zu einem Montage-Untergrund justierbar. Nach sehr bevorzugter Ausführungsform der Erfindung ist das Justierelement als schraubbares Justierrohr ausgebildet, wobei dieses Justierrohr bei einem Schraubvorgang bzw. beim Verschrauben relativ zum übrigen Transportanker in Richtung der Längsachse L des Transportankers verschoben wird. Vorzugsweise ist das Justierelement bzw. das Justierrohr mit einem Justier-Gewinde für diese Verschraubbarkeit ausgestattet. Zweckmäßigerweise kann das schraubbare Justierrohr aus der Unterseite des Bauteils/der Platte herausgeschraubt werden und in die Unterseite des Bauteils/der Platte auch wieder hineingeschraubt werden. Je nach Stellung des schraubbaren Justierrohres ergibt sich dann ein bestimmter Abstand zwischen der Unterseite des Bauteils/der Platte und dem Montage-Untergrund. Durch diese Betätigung des Justierrohrs kann eine sehr effektive Höhenjustierung des erfindungsgemäßen Bauteils vorgenommen werden. Es liegt im Rahmen der Erfindung, dass das schraubbare Justierrohr in ein am unteren Ende des Transportankers vorgesehenes Justier-Innengewinde des Transportankers bzw. des unteren Teilankers einschraubbar ist. Zweckmäßigerweise erstreckt sich das Justier-Innengewinde über zumindest 10 %, vorzugsweise über zumindest 15 %, bevorzugt über zumindest 20 % und sehr bevorzugt über zumindest 25 % der Länge des gesamten Transportankers. Bewährtermaßen erstreckt sich das Justier-Innengewinde über mindestens 30 %, vorzugsweise über mindestens 35 %, bevorzugt über mindestens 40 % und sehr bevorzugt über zumindest 45 % der Länge des unteren Teilankers. Gemäß einer empfohlenen Ausführungsvariante der Erfindung ist die Oberseite des schraubbaren Justierrohres mit Betätigungselementen, insbesondere in Form von Kreuzschlitz-Ausnehmungen ausgestattet, so dass das Justierrohr mittels eines mit den Betätigungselementen wechselwirkenden Betätigungswerkzeuges, insbesondere in Form eines Kreuzschlitz-Werkzeuges schraubbar ist. Zweckmäßigerweise sind die Betätigungselemente bzw. Kreuzschlitz-Ausnehmungen an dem oberen Rand der Wandung des Justierrohres vorhanden. Dann kann nach bewährter Ausführungsform das Justierrohr mit einem Betätigungswerkzeug bzw. Kreuzschlitz-Werkzeug von oben durch den Hohlraum des Transportankers betätigt werden.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. According to a very preferred embodiment of the invention, 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. Depending on the position of the screwable adjusting tube, there is then a certain distance between the underside of the component / plate and the mounting surface. By doing this of the adjusting tube, a very effective height adjustment of the component according to the invention can be carried out. It is within the scope of the invention that 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. As is proven, 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. According to a recommended variant of the invention, 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.

Es liegt im Rahmen der Erfindung, dass ein erfindungsgemäßer Transportanker innen hohl ausgebildet ist, wobei sich in Richtung der Längsachse L des Transportankers ein Hohlraum erstreckt, der den Einfüllkanal für das Füllmaterial bzw. das Verpressmaterial bildet. Dieses Füllmaterial bzw. Verpressmaterial wird in den Zwischenraum zwischen der Unterseite des Bauteils/der Platte und dem Montage-Untergrund gefüllt bzw. verpresst. Es liegt weiterhin im Rahmen der Erfindung, dass sich der Einfüllkanal durch das innen hohle Justierelement bzw. durch das innen hohle Justierrohr erstreckt. Zweckmäßigerweise erstreckt sich der Einfüllkanal bis in den Zwischenraum zwischen der Unterseite des Bauteils/der Platte und dem Montage-Untergrund. Empfohlenermaßen weist das Justierelement bzw. das Justierrohr an seinem unteren Ende zumindest eine Austrittsöffnung für das Füllmaterial/Verpressmaterial auf. Vorzugsweise ist die zumindest eine Austrittsöffnung in einer Seitenwandung des innen hohlen Justierrohres vorgesehen. Eine besonders bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass eine Mehrzahl von Austrittsöffnungen für das Füllmaterial an dem Justierrohr vorgesehen sind und zwar zweckmäßigerweise zumindest zwei Austrittsöffnungen, die bevorzugt in der Seitenwandung des innen hohlen Justierrohres angeordnet sind. Eine besonders bewährte Ausführungsform zeichnet sich dadurch aus, dass zumindest zwei diametral gegenüberliegende Austrittsöffnungen in der Seitenwandung des innen hohlen Justierrohres angeordnet sind. Durch den Füllkanal und durch die Austrittsöffnung bzw. die Austrittsöffnungen wird das Füllmaterial/Verpressmaterial in den Zwischenraum zwischen der Unterseite des Bauteils/der Platte und dem Montage-Untergrund gebracht. Bei dem Füllmaterial handelt es sich beispielsweise um einen Flüssigkunststoff bzw. um eine kunststoffhaltige Flüssigkeit. Hier können aber auch Mörtel oder dergleichen eingesetzt werden.It is within the scope of the invention that 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. It is also within the scope of the invention that 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. Through the filling channel and through the outlet opening or the outlet openings, the filling material / grouting material is brought into the space between the underside of the component / plate and the mounting base. The filler material is, for example, a liquid plastic or a plastic-containing liquid. However, mortar or the like can also be used here.

Eine empfohlene Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass der Transportanker im montierten bzw. verlegten Zustand des Bauteils/der Platte mit seinem unteren Ende auf zumindest einem elastischen Auflagerelement aufliegt. Vorzugsweise liegt das in dem Transportanker fixierte bzw. eingeschraubte Justierelement/Justierrohr mit seinem unteren Ende auf dem zumindest einen Auflagerelement auf. Bei dem elastischen Auflagerelement handelt es sich insbesondere um ein Auflagerelement bzw. um eine Auflagerplatte aus Gummi bzw. aus einem elastischen Kunststoff. Hier können beispielsweise zerschredderte Gummireifen als Material für das Auflagerelement eingesetzt werden.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. Here For example, shredded rubber tires can be used as the material for the support element.

Nach einer bevorzugten Ausgestaltung der Erfindung wird ein Untergrund, insbesondere ein befahrbarer Untergrund mit einer Mehrzahl bzw. mit einer Vielzahl nebeneinander angeordneter Fertigbetonplatten - beispielsweise mit 300 bis 400 Fertigbetonplatten - realisiert. Es liegt dabei im Rahmen der Erfindung, dass jede dieser Fertigbetonplatten eine Mehrzahl von einbetonierten Transportankern - insbesondere 3 bis 6, beispielsweise 4 einbetonierte Transportanker - aufweist. Vorzugsweise nimmt jede Fertigbetonplatte eine Fläche von 4 bis 10 m2, bevorzugt von 6 bis 8 m2 ein. Es liegt weiterhin im Rahmen der Erfindung, dass die Fertigbetonplatten zur Erstellung des Untergrundes bzw. des befahrbaren Untergrundes zunächst mittels zumindest einer Transportvorrichtung - beispielsweise mittels eines Transportkrans - in den gewünschten Positionen angeordnet werden, wobei die Fertigbetonplatten über ihre Transportanker an der Transportvorrichtung fixiert sind. Nach Positionierung der Fertigbetonplatten werden die Platten dann zweckmäßigerweise mittels der in den Transportankern vorgesehenen Justierelementen bezüglich ihres Abstandes bzw. bezüglich ihres vertikalen Abstandes zum Montage-Untergrund höhenjustiert. Es liegt dabei im Rahmen der Erfindung, dass diese Justierung jeweils durch die nach oben hin offenen Transportanker bzw. durch den Einfüllkanal der Transportanker hindurch erfolgt. Nachdem auf diese Weise vorzugsweise die Platten des gesamten Untergrundes bzw. des gesamten verfahrbaren Untergrundes höhenjustiert wurden, erfolgt zweckmäßigerweise die Verfüllung des Zwischenraumes zwischen den Platten und dem Montage-Untergrund mit Verfüllmaterial. Dabei liegt es weiterhin im Rahmen der Erfindung, dass das Verfüllmaterial in einem nach oben hin offenen Transportanker durch den Hohlraum des Transportankers bzw. durch den Einfüllkanal des Transportankers in den Zwischenraum eingebracht wird. Ein besonderer Vorteil der Erfindung liegt insoweit darin, dass ein einziges Bauelement - nämlich ein erfindungsgemäßer Transportanker - drei Funktionen erfüllen kann und zwar erstens die Fixierungsfunktion hinsichtlich der Fixierung der Fertigbetonplatte an der Transportvorrichtung, zweitens die Justierfunktion bezüglich der Betätigung des Justierelementes durch den Transportanker hindurch und drittens die Verfüllfunktion in Bezug auf das Verfüllen bzw. Vergießen des Zwischenraumes zwischen Platten und Montage-Untergrund. Aufgrund dieser Mehrfachfunktion der erfindungsgemäßen Transportanker kann mit den Fertigbetonplatten eine Verkehrsfläche mit möglichst geringen Öffnungsunterbrechungen geschaffen werden, indem in den Fertigbetonplatten lediglich die Öffnungen der Transportanker vorgesehen sind bzw. für alle Funktionen zur Verfügung stehen. - Besondere Bedeutung kommt im Rahmen der Erfindung auch dem elastischen Auflagerelement zu. Nach dem Verfüllen des Zwischenraumes zwischen den Platten und dem Montage-Untergrund würde die Hauptlast der Platten (immer noch) von den auf den Montage-Untergrund aufgestellten Transportankern übernommen. Insoweit müsste zur Verteilung der Lasten ein Zurückstellen bzw. Zurückschrauben der Justierelemente der Transportanker erfolgen. Die unter den Transportankern angeordneten elastischen Auflagerelemente bewirken in vorteilhafter Weise, dass ein Zurückstellen bzw. Zurückschrauben der Justierelemente nicht erforderlich ist und dass nichtsdestoweniger eine optimale Lastverteilung erfolgt.According to a preferred embodiment of the invention, 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 . It is also within the scope of the invention that 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. After the panels of the entire subsurface or of the entire movable subsurface have preferably been adjusted in height in this way, the space between the panels and the assembly subsurface is expediently filled with backfill material. It is also within the scope of the invention that 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. After filling the gap between the panels and the mounting surface, the main load of the panels would (still) be taken over by the transport anchors placed on the mounting surface. To this extent, 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.

Gegenstand der Erfindung ist somit ein Transportanker zum Einbetonieren in ein Fertigbetonteil, insbesondere in eine Fertigbetonplatte, wobei der Transportanker eine Fixierungseinrichtung für die Fixierung an einer Transportvorrichtung aufweist, wobei der Transportanker fernerhin zumindest ein, vorzugsweise lediglich ein verstellbares bzw. verschiebbares Justierelement umfasst, wobei mit diesem Justierelement der Abstand zu einem Montage-Untergrund einstellbar und wobei der Transportanker zumindest einen Einfüllkanal für das Einfüllen eines Füllmaterials bzw. Verpressmaterials zwischen Bauteil und Montage-Untergrund aufweist.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.

Der Erfindung liegt die Erkenntnis zugrunde, dass bei dem erfindungsgemäßen Bauteil und insbesondere mit dem erfindungsgemäßen Transportanker eine Mehrzahl von Funktionen effektiv erfüllt werden können. So dient der Transportanker neben der Fixierung an einer Transportvorrichtung auch als Justierhilfe für die vertikale Justierung des Bauwerks bzw. der Platte. Überraschenderweise ist diese Justierung mit dem zumindest einen Justierelement des Transportankers sehr präzise und einfach durchführbar. Zugleich kann der erfindungsgemäße Transportanker und insbesondere der Transportanker in Kombination mit seinem Justierelement als Einfüllkanal für ein Füllmaterial bzw. Verpressmaterial dienen. Auch hierzu ist der erfindungsgemäße Transportanker auf einfache, wenig aufwendige und effektive Weise einsetzbar. Von besonderer Bedeutung ist im Rahmen der Erfindung, dass die nach oben offene Öffnung eines Transportankers sowohl zur Fixierung des Bauteils an einer Transportvorrichtung als auch als Zugang für die Justierung eines Justierelementes dient und zudem auch für das Einfüllen des Füllmaterials bzw. Verpressmaterials benutzt werden kann. Aufgrund dieses mehrfunktionalen Charakters der Transportanker und ihrer Öffnungen bzw. Hohlräume können Betonbauteile bzw. Betonplatten mit lediglich einer geringen Anzahl von Unterbrechungsöffnungen realisiert werden. Hervorzuheben ist weiterhin, dass ein erfindungsgemäßes Bauteil mit integrierten Transportankern auf einfache und kostengünstige Weise hergestellt werden kann.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. 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. At the same time, 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. It is of particular importance within the scope of the invention that 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.

Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Es zeigen in schematischer Darstellung:

Fig. 1
einen Schnitt durch ein erfindungsgemäßes Bauteil bzw. durch eine erfindungsgemäße Platte mit integriertem/einbetoniertem Transportanker und
Fig. 2
eine Draufsicht auf ein in dem Transportanker angeordnetes Justierelement/Justierrohr.
The invention is explained in more detail below with the aid of a drawing showing only one exemplary embodiment. It shows in a schematic representation:
Fig. 1
a section through a component according to the invention or through a plate according to the invention with an integrated / concreted transport anchor and
Fig. 2
a plan view of an adjusting element / adjusting tube arranged in the transport anchor.

Die Figuren zeigen ein erfindungsgemäßes Fertigbetonbauteil in Form einer Fertigbetonplatte 1. In diese Fertigbetonplatte 1 mögen eine Mehrzahl von Transportankern 2 einbetoniert sein. Im Ausführungsbeispiel nach Fig. 1 ist lediglich ein Transportanker 2 dargestellt. Ein solcher Transportanker 2 dient zur Fixierung der Fertigbetonplatte 1 an einer Transportvorrichtung, beispielsweise an einem Kran oder dergleichen. Empfohlenermaßen und im Ausführungsbeispiel weist der Transportanker 2 an seinem oberen Ende eine Fixierungseinrichtung in Form eines Fixierungs-Innengewindes 3 auf. Über dieses Fixierungs-Innengewinde 3 wird der Transportanker 2 bzw. die Fertigbetonplatte 1 an der Transportvorrichtung - beispielsweise an einem Kran, fixiert. Das Fixierungs-Innengewinde 3 erstreckt sich bevorzugt und im Ausführungsbeispiel über zumindest 30 % der Länge des Transportankers 2.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. In the embodiment according to Fig. 1 only 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. Recommended and in the exemplary embodiment, 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.

In der Fig. 1 ist erkennbar, dass empfohlenermaßen und im Ausführungsbeispiel die Längsachse L des Transportankers 2 quer bzw. im Wesentlichen senkrecht zu dem Montage-Untergrund 4 orientiert ist. Weiterhin ist zweckmäßigerweise und im Ausführungsbeispiel diese Längsachse L senkrecht zu der Oberseite 5 der Platte 1 angeordnet. Vorzugsweise und im Ausführungsbeispiel ist der Transportanker 2 innen hohl ausgebildet und ein Hohlraum 17 erstreckt sich über die gesamte Länge des Transportankers 2.In the Fig. 1 it can be seen that, as recommended and in the exemplary embodiment, 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. Preferably and in the exemplary embodiment 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.

Der Transportanker 2 ist aus zwei Teilankern 6, 7 zusammengesetzt, die an ihren aneinander zugewandten Enden verbunden sind; - im Ausführungsbeispiel über dort angeschlossene Fixierungsflansche 8 miteinander verschweißt. Dabei erstreckt sich der obere Teilanker 6 durch die obere Hälfte der Platte 1 und der untere Teilanker 7 durch die untere Hälfte der Platte 1. - Empfohlenermaßen und im Ausführungsbeispiel laufen die beiden Fixierungsflansche 8 jeweils über den Umfang des zugeordneten Teilankers 6, 7 um und erstrecken sich senkrecht zur Längsachse L des Transportankers 2. Es liegt im Rahmen der Erfindung, dass die miteinander verschweißten Fixierungsflansche 8 in den Beton der Platte 1 integriert bzw. einbetoniert sind. Im Übrigen ist der Transportanker 2 und damit auch die beiden Teilanker 6, 7 über ihre gesamte Länge in die Platte 1 einbetoniert. Im Ausführungsbeispiel weist der einbetonierte Transportanker 2 an seinem oberen Ende einen Abstand zur Oberseite 5 der Platte 1 auf und an seinem unteren Ende einen Abstand zur Unterseite 9 der Platte 1 auf.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. - Recommended and in the exemplary embodiment, 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. It is within the scope of the invention that the fixing flanges 8 welded to one another are integrated or set in concrete in the concrete of the plate 1. In addition, the transport anchor 2 and thus also the two part anchors 6, 7 are concreted into the slab 1 over their entire length. In the exemplary embodiment, 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.

Es liegt weiterhin im Rahmen der Erfindung, dass der erfindungsgemäße Transportanker 2 ein verstellbares Justierelement aufweist, mit dem der Abstand der Platte 1 zu dem Montage-Untergrund 4 einstellbar ist und mit dem somit eine Höhenjustierung der Platte 1 möglich ist. Empfohlenermaßen und im Ausführungsbeispiel ist das Justierelement als schraubbares Justierrohr 10 ausgebildet, wobei das Justierrohr 10 beim Verschrauben relativ zum übrigen Transportanker 2 in Richtung der Längsachse L des Transportankers 2 verschiebbar ist. Dazu ist vorzugsweise und im Ausführungsbeispiel das Justierrohr in ein am unteren Ende des Transportankers 2 vorgesehenes Justier-Innengewinde 11 eingeschraubt. Dieses Justier-Innengewinde 11 ist im Ausführungsbeispiel im unteren Teilanker 7 vorgesehen. Es erstreckt sich bevorzugt und im Ausführungsbeispiel über zumindest 25 % der Länge des Transportankers sowie bevorzugt und im Ausführungsbeispiel über zumindest 50 % der Länge des unteren Teilankers 7. Bewährtermaßen und im Ausführungsbeispiel sind an dem oberen Ende des Justierrohres 10 Kreuzschlitz-Ausnehmungen 12 vorgesehen, die mit einem nicht dargestellten Kreuzschlitz-Werkzeug betätigbar sind, so dass auf diese Weise das Justierrohr 10 aus der Unterseite 9 der Platte 1 herausgeschraubt oder in die Unterseite 9 der Platte 1 hereingeschraubt werden kann. Dadurch ist eine Höhenjustierung der Platte 1 möglich. Empfohlenermaßen und im Ausführungsbeispiel kann das Justierrohr 10 von oben durch den Hohlraum 17 des Transportankers 2 mittels eines Werkzeuges betätigt werden.It is also within the scope of the invention that the transport anchor 2 according to the invention 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. Recommended and in the exemplary embodiment, 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. For this purpose, and in the exemplary embodiment, 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. It extends preferably and in the exemplary embodiment over at least 25% of the length of the transport anchor and preferably and in the exemplary embodiment over at least 50% of the length of the lower part anchor 7. Proven dimensions and in the exemplary embodiment 10 cross-slot recesses 12 are provided at the upper end of the adjusting tube can be actuated with a Phillips tool (not shown), so that in this way the adjusting tube 10 can be screwed out of the underside 9 of the plate 1 or screwed into the underside 9 of the plate 1. This enables the height of the plate 1 to be adjusted. Recommended and 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.

Es liegt im Rahmen der Erfindung, dass der erfindungsgemäße Transportanker 2 einen Einfüllkanal 13 für das Einfüllen eines (nicht dargestellten) Füllmaterials bzw. Verpressmaterials in den Zwischenraum 14 zwischen der Unterseite 9 der Platte 1 und dem Montage-Untergrund 4 aufweist. Zweckmäßigerweise und im Ausführungsbeispiel bildet der innere Hohlraum 17 des Transportankers 2 und somit auch der Hohlraum des Justierrohres 10 diesen Einfüllkanal 13. Das Einfüllmaterial bzw. Verpressmaterial wird also am oberen Ende des Transportankers 2 in den Hohlraum 17 des Transportankers 2 eingefüllt und gelangt über diesen Hohlraum 17 zu dem Zwischenraum 14 zwischen der Unterseite 9 der Platte 1 und dem Montage-Untergrund 4. Dabei hat sich bewährt, dass das Justierrohr 10 an seinem unteren Ende Austrittsöffnungen 15 für das Füllmaterial aufweist, wobei die Austrittsöffnungen 15 bevorzugt und im Ausführungsbeispiel in einer Seitenwandung des hohlen Justierrohres 10 vorgesehen sind. In der Fig. 1 ist lediglich eine vordere Austrittsöffnung 15 erkennbar. Hier mögen zwei diametral gegenüberliegende Austrittsöffnungen 15 für das Füllmaterial vorhanden sein.It is within the scope of the invention that the transport anchor 2 according to the invention 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. Appropriately and in the exemplary embodiment, 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. It has proven useful that 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. In the Fig. 1 is only a front outlet opening 15 recognizable. Here there may be two diametrically opposite outlet openings 15 for the filler material.

Gemäß bevorzugter Ausführungsform und im Ausführungsbeispiel liegt der Transportanker 2 im montierten bzw. verlegten Zustand der Platte 1 mit seinem unteren Ende auf einem elastischen Auflagerelement 16 auf. Zweckmäßigerweise und im Ausführungsbeispiel ist dabei das untere Ende des Justierrohres 10 des Transportankers 2 auf dem Auflagerelement 16 angeordnet.According to the preferred embodiment and in the exemplary embodiment, 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. Appropriately and in the exemplary embodiment, the lower end of the adjusting tube 10 of the lifting anchor 2 is arranged on the support element 16.

Claims (13)

  1. A pre-cast concrete component, in particular a pre-cast concrete panel (1), - having at least one transport anchor (2) embedded in the component, the component being fixable to a transport apparatus by means of the transport anchor (2), the transport anchor (2) having a fixing device for fixing the transport anchor (2) to the transport apparatus, the transport anchor (2) having at least one, preferably only one, movable or displaceable adjusting element, by means of which adjusting element the distance, preferably the vertical distance, of the component from an installation subsurface (4) can be set, and the transport anchor (2) having at least one filling channel (13) for introducing a filling material or grouting material between the component and the installation subsurface (4), characterised in that the transport anchor (2) is composed of two part-anchors (6, 7) which are connected to each other by their mutually facing ends, wherein an upper part-anchor (6) extends through the upper half of the component or panel (1), and a lower part-anchor (7) extends through a lower half of the component or panel (1), wherein both part-anchors (6, 7) are embedded in the component or panel (1) over their entire length, wherein the fixing device is provided in the upper part-anchor (6).
  2. The pre-cast concrete component according to Claim 1, characterised in that the pre-cast concrete component is a pre-cast concrete panel (1) for a subsurface which can be driven on, in particular for a road which can be driven on, or the like.
  3. The pre-cast concrete component according to either of Claims 1 or 2, characterised in that a plurality of transport anchors (2), preferably 2 to 6 transport anchors (2), is/are embedded in the pre-cast concrete component or pre-cast concrete panel (1).
  4. The pre-cast concrete component according to any one of Claims 1 to 3, characterised in that the longitudinal axis L of the transport anchor (2) is oriented transversely, in particular perpendicularly or substantially perpendicularly, to the installation subsurface (4) and/or to the top (5) or the top (5) which can be driven on, of the component.
  5. The pre-cast concrete component according to any one of Claims 1 to 4, characterised in that the two part-anchors (6, 7) are welded to each other at their mutually facing ends, preferably welded to each other via fixing flanges (8) .
  6. The pre-cast concrete component according to any one of Claims 1 to 5, characterised in that the two part-anchors (6, 7) each have a fixing flange (8) at their mutually facing ends, wherein the fixing flanges (8) extend transversely, preferably perpendicularly or substantially perpendicularly, to the longitudinal axis L of the transport anchor (2) and are expediently embedded in the component.
  7. The pre-cast concrete component according to any one of Claims 1 to 6, characterised in that the fixing device is in the form of a fixing thread or a fixing internal thread (3) of the transport anchor (2).
  8. The pre-cast concrete component according to any one of Claims 1 to 7, characterised in that the adjusting element is in the form of a screwable adjusting tube (10), wherein the adjusting tube (10) is displaceable relative to the other transport anchor (2) in the direction of the longitudinal axis (L) of the transport anchor (2) during a screwing process, and wherein the adjusting tube (10) preferably engages in an adjusting internal thread (11) of the transport anchor (2) or of the lower part-anchor (7), said adjusting internal thread being provided at the lower end of the transport anchor (2).
  9. The pre-cast concrete component according to any one of Claims 1 to 8, characterised in that the transport anchor (2) is internally hollow, wherein the hollow space (17) extending in the direction of the longitudinal axis L of the transport anchor (2) forms the filling channel (13) for the filling material or grouting material.
  10. The pre-cast concrete component according to Claim 9, characterised in that the filling channel (13) extends through the internally hollow adjusting element or through the internally hollow adjusting tube (10).
  11. The pre-cast concrete component according to any one of Claims 1 to 10, characterised in that the adjusting element or the adjusting tube (10) has at the lower end at least one outlet opening (15) for the filling material or grouting material, and wherein preferably the at least one outlet opening (15) is provided in a side wall of the internally hollow adjusting tube (10).
  12. The pre-cast concrete component according to any one of Claims 1 to 11, characterised in that in the installed or laid state of the component or panel (1), the transport anchor (2) rests with its lower end on at least one elastic bearing element (16), and wherein preferably the adjusting element or the adjusting tube (10) rests with its lower end on the bearing element (16).
  13. A transport anchor for embedding in a pre-cast concrete component, in particular in a pre-cast concrete panel (1) - in particular according to any one of Claims 1 to 12 - the transport anchor (2) having a fixing device for fixing to a transport apparatus, the transport anchor (2) further comprising at least one, preferably only one, movable or displaceable adjusting element, by means of which adjusting element the distance from an installation subsurface (4) can be set, and the transport anchor (2) having at least one filling channel (13) for introducing a filling material or grouting material, characterised in that the transport anchor (2) is composed of two part-anchors (6, 7) which are connected to each other by their mutually facing ends, wherein an upper part-anchor (6) can extend through the upper half of the component or panel (1), and a lower part-anchor (7) can extend through a lower half of the component or panel (1), wherein both part-anchors (6, 7) can be embedded in the component or panel (1) over their entire length, wherein the fixing device is provided in the upper part-anchor (6).
EP17173407.2A 2016-06-29 2017-05-30 Pre-cast concrete component, in particular pre-cast concrete panel, transportation anchor for such a concrete component Active EP3263787B1 (en)

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EP3744895B1 (en) * 2019-05-29 2022-01-05 BTE Stelcon GmbH Method for producing a traffic area, traffic area and pre-cast concrete panel

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US3429092A (en) * 1966-05-26 1969-02-25 Dyna Structures Structural frames and methods and means therefor
JP3569878B2 (en) * 1995-10-05 2004-09-29 大成ロテック株式会社 Jig for connecting precast concrete slabs
JP3581534B2 (en) * 1997-09-01 2004-10-27 株式会社Ｎｉｐｐｏコーポレーション Precast concrete slab and manufacturing method thereof
KR20150057581A (en) * 2013-11-20 2015-05-28 한국건설기술연구원 Level adjusting apparatus for precast slab and precast slab construction method using therewith
US9347232B1 (en) * 2014-03-10 2016-05-24 Sidney E. Francies, III Lifting and leveling assembly for precast concrete slabs and method
KR101697314B1 (en) * 2015-03-17 2017-01-18 콘비젼스 주식회사 Precast concrete panel for paving road, and method for quickly paving on road of downtown area
KR101644784B1 (en) * 2015-08-25 2016-08-03 한국건설기술연구원 Apparatus and Method for Control Gap between Precast Slab and Ground Surface

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