EP2055846B1 - Use of elements for connecting prefinished concrete elements - Google Patents

Use of elements for connecting prefinished concrete elements Download PDF

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Publication number
EP2055846B1
EP2055846B1 EP09153597A EP09153597A EP2055846B1 EP 2055846 B1 EP2055846 B1 EP 2055846B1 EP 09153597 A EP09153597 A EP 09153597A EP 09153597 A EP09153597 A EP 09153597A EP 2055846 B1 EP2055846 B1 EP 2055846B1
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Prior art keywords
storage box
precast concrete
elements
concrete part
reinforcing loop
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German (de)
French (fr)
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EP2055846A1 (en
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Dipl.-Ing. Matthias Kintscher
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Pfeifer Holding GmbH and Co KG
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Pfeifer Holding GmbH and Co KG
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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
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • 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
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • E04G21/126—Reinforcement continuity box for cable loops

Definitions

  • the precast concrete parts In order to build supporting structures of a building made of precast concrete parts, the precast concrete parts must be connected to each other with a force fit.
  • Disc-shaped wall elements are connected to each other or vertical supports on vertical joints.
  • Vergussnuten At the end faces of the elements corresponding Vergussnuten are arranged on the basis of connecting elements are arranged with storage boxes containing fold-out reinforcing elements.
  • These reinforcing elements can consist of both reinforcing steel and flexible rope elements.
  • Such fasteners are for example in the WO 03/008737 disclosed.
  • FIG Fig. 5 For the transverse force transmission parallel to the joint various industrially manufactured fasteners are known, as shown schematically in FIG Fig. 5 are shown.
  • continuous profile elements such as the Pfeifer VS® rail, PEEIEER VS® rail, Betomax Schlaufmax, Philipp rail, and also individual elements ( Fig. 5a ), b)), which are to ensure the transverse force transmission by repeatedly repeated arrangement of reinforcing loops in the precast joint above the other.
  • the lengths of these rails and strips is for logistical reasons at about 1.20 m.
  • To reach floor height several rail elements are joined together seamlessly. If fewer loops are needed in a joint, individual deposit boxes are used with only one loop at a distance. By way of example, two and two individual loops may be required in the floor above.
  • the individual elements are, for example, the Pfeifer VS® box ( Fig. 5a )) and the Philipp connection loop ( Fig. 5b )) to disposal. Both have in common that it is an elongated storage box, at one end of a rope loop is arranged, which can be stored inside the storage box. The overall length is essentially matched to the one loop and much shorter than the rails and bars.
  • the individual boxes are arranged at the bottom of the Vergussnut, and the opposing loops are folded out and connected overlapping by the introduced and hardening mortar.
  • the US 6,308,478 B1 a connecting device with a plurality of, for example, four or more loop elements, which can be received in a common storage box and folded out of this.
  • the invention is based on the finding that in compact fasteners with only one reinforcement loop or at the free ends of rail-like fasteners with transverse force stress no balance of power adjusts, in which the essential tensile forces are absorbed in the connection by reinforcing elements.
  • the invention therefore aims to design and use the connecting element in particular even with compact dimensions such that the tensile forces that arise in the connection as a result of an oblique concrete strut by transverse force stress, are absorbed and forwarded by reinforcing elements.
  • the invention provides that in a generic connection element, the penetration openings of the two reinforcing loop elements are provided near opposite ends of the storage box.
  • two opposing reinforcing loops are in the bent-out state (final state) near the respective ends of the storage box.
  • each individual, used according to the invention fastener a self-contained support behavior in which due to transverse force stress an inclined compression strut can form in concrete, which can be supported at their (imaginary) ends on the reinforcing loops of the connecting element to initiate excessive tensile forces in the concrete or mortar to avoid.
  • an inclined compression strut can form in concrete, which can be supported at their (imaginary) ends on the reinforcing loops of the connecting element to initiate excessive tensile forces in the concrete or mortar to avoid.
  • a harmful cracking in the connection area can be effectively prevented, which in addition to the load capacity and the durability and rigidity of the compound significantly increased.
  • the connecting element used according to the invention has a simple construction and can be used without modification of the previous construction process without problems.
  • a connecting element with exactly two reinforcing loop elements is an embodiment according to the invention.
  • This is highly variable in use and has, in contrast to known individual elements, a significantly improved, self-contained load-bearing behavior.
  • the maximum distance of the near-end penetrating openings from one end in the longitudinal direction of the storage box is less than 0.5 times a loop length by which the reinforcing loop elements project from the storage box in the bent-out state.
  • a particularly compact connection element is provided.
  • a concrete compression strut forming as a result of transverse force stress can be effectively supported at the proximal ends of the storage box with the perforation openings and thus the installed reinforcement loop elements arranged close to the edge, thereby further improving the load bearing behavior of the connection element.
  • the maximum distance of the proximal penetrating openings from one end in the longitudinal direction of the storage box is less than 0.25 times, particularly preferably 0.1 times, the loop length.
  • the length of the storage box is less than 2.5 times a loop length by which the reinforcing loop elements protrude in the bent-out state of the storage box.
  • this configuration also ensures that the reinforcing loop elements in the installed state are sufficiently close to each other so that the inclination of a pressure strut between the reinforcing loop elements does not become too low and therefore the compressive forces that occur do not become excessively large.
  • An even more compact connection element is obtained according to the invention if the length of the storage box is less than 1.5 times the loop length.
  • the trolley bottom is profiled at least in sections by elevations and / or depressions. This ensures that the reinforcing loop elements of the connecting element also activates under transverse force stress before excessive deformation and cracking occurs in the area of the joint. It is particularly preferred that the elevations and / or depressions are provided adjacent to the penetration openings, so that adjusts the desired, closed support system with the involvement of the reinforcement loop elements.
  • the connecting element according to the invention can be used individually or in combination with similar or different types of connecting elements. In this way, the carrying behavior of the overall connection is advantageously influenced by a locally limited measure.
  • Fig. 1a schematically shows a connecting element 20 according to a first embodiment of the present invention.
  • the connecting element 20 serves for the transverse force joining of precast concrete elements to a joint with transverse forces parallel to the joint longitudinal direction and comprises a storage box 1 and two bendable reinforcing loop elements 3.
  • the storage box 1 has an elongated, hollow box-like shape with a length L and two longitudinal ends 1a, 1b.
  • a storage box floor 1c two openings 1 ', 1 "are provided, on which the reinforcement loop elements 3 penetrate the storage box 1.
  • the reinforcement loop elements 3 may be, for example, beta steel bars or flexible cable elements which are connected at their free ends via a clamp 2, sleeve or the like.
  • the length L of the storage box is designed such that the reinforcing loops 3 can be easily accommodated inside the storage box 1, as in FIG Fig. 1a shown.
  • the length L of the storage box 1 is slightly less than 2.5 times the length of the loop 1.
  • Fig. 1b shows a connecting element 20 according to a second preferred embodiment of the invention.
  • This in Fig. 1b shown connecting element 20 differs from that according to the in Fig. 1a shown, first embodiment in the length L of the storage box 1.
  • the maximum distance a of the penetration openings 1 ', 1 "in absolute terms is approximately the same as in the first embodiment, which, however, results in a somewhat larger ratio between the maximum distance a and length L of the storage box.
  • FIG Fig. 2 schematically shown in a perspective view. This is different from the one in Fig. 1a shown first embodiment by profiling, which are provided in the form of recesses 12 in the storage box floor 1 c. In this case, the recesses 12 are provided in the present embodiment adjacent to the penetration openings 1 ', 1''.
  • FIG. 2 the connecting element 20 with bent by the length of 1 Reinforcement loop elements 3, ie in the final state, which occupies the connecting element in a combination of precast concrete parts.
  • the loop length 1 serves here, as in Fig. 2 shown, the storage box floor 1c.
  • FIG Fig. 4 A connection of precast concrete parts using the connecting element 20 according to the invention is shown schematically in FIG Fig. 4 showing both a vertical and a horizontal sectional view of the connection.
  • the connecting elements 20 according to the invention are provided in end-side potting grooves 11 of precast concrete elements 5 to be joined together.
  • the precast concrete elements 5 are placed side by side with their end faces in such a way that a gap 10 forms in the region of the grouting grooves 11 and is later filled with grout.
  • the reinforcing loop elements 3 are bent out of the custody boxes 1, so that the reinforcing loop elements 3 of opposing connecting elements 20 overlap.
  • a mounting bar 8 made of reinforcing steel is guided by the overlaps. Finally, the grouting of the joint is made to connect the finished parts 5 non-positively with each other.
  • the connecting elements 20, as in the upper part of Fig. 4 can be seen in the vertical section, preferably evenly arranged over the precast concrete elements 5.
  • a model for the in the range of two interconnected by connecting elements 20 precast concrete 5 adjusting behavior is schematically in Fig. 3 shown.
  • a transverse force stress Q whose effective direction is indicated schematically by arrows 6 in FIG Fig. 3 is specified, formed between the precast concrete 5 in the grout or concrete a pressure field, by a inclined concrete strut 7 can be modeled.
  • the model, inclined concrete strut 7 is supported at its ends on the storage boxes 1 of the connecting elements 20, wherein both the Verwahrkastenenden 1 a, 1b and the recesses 12 of the deposit box bottom 1 c contribute to improved support and load transfer of the strut 7.
  • the forces 5 aroused by the strut 7 must be taken up and down.
  • the preferred embodiments described above each have exactly two reinforcing loop elements, since this results in particularly compact and versatile connecting elements with a closed carrying behavior.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Adornments (AREA)

Abstract

In a construction project requiring the use of steel wire-reinforced concrete, wire loops (2) are anchored at each end (3) in a closed frame (1). The loops pass through apertures (1') close to the frame end (1a, 1b).

Description

Stand der TechnikState of the art

Um Tragstrukturen eines aus Betonfertigteilen erstellten Gebäudes zu errichten, müssen die Betonfertigteile miteinander kraftschlüssig verbunden werden. Scheibenförmige Wandelemente werden miteinander oder mit vertikal stehenden Stützen an Vertikalfugen verbunden. An den Stirnseiten der Elemente sind entsprechende Vergussnuten angeordnet, auf deren Grund Verbindungselemente mit Verwahrkästen angeordnet werden, die herausklappbare Bewehrungselemente beinhalten. Diese Bewehrungselemente können sowohl aus Betonstahl als auch flexiblen Seilelementen bestehen. Derartige Verbindungselemente sind beispielsweise in der WO 03/008737 offenbart.In order to build supporting structures of a building made of precast concrete parts, the precast concrete parts must be connected to each other with a force fit. Disc-shaped wall elements are connected to each other or vertical supports on vertical joints. At the end faces of the elements corresponding Vergussnuten are arranged on the basis of connecting elements are arranged with storage boxes containing fold-out reinforcing elements. These reinforcing elements can consist of both reinforcing steel and flexible rope elements. Such fasteners are for example in the WO 03/008737 disclosed.

Durch Herausklappen dieser Bewehrungselemente stehen senkrecht zur Stirnseite schlaufenartige Elemente zur Verfügung, die beim Zusammenstellen der Fertigteilelemente in der Fuge überlappen. Die sich in der Fuge überlappenden Schlaufen werden zumeist über die gesamte Höhe der Fertigteilelemente in der Vergussfuge mit Fugenmörtel vergossen. Nach dessen Erhärten kann die Vergussfuge dank der überlappenden Verbindungselemente Kräfte in verschiedenen Richtungen übertragen, d.h. einerseits Zugkräfte in der Überlappung senkrecht zur Stirnseite der Fertigteilelemente, andererseits Querkräfte senkrecht zur Scheibenebene und, besonders wichtig, Querkraft parallel zur Fugenlängsrichtung. Letztere stellt einen baupraktisch sehr häufig auftretenden Lastfall dar.By folding out these reinforcing elements are perpendicular to the front side loop-like elements available that overlap when assembling the precast elements in the joint. The loops that overlap in the joint are usually grouted over the entire height of the precast elements in the grouting joint with joint mortar. After its hardening, the grouting joint can transmit forces in different directions thanks to the overlapping connecting elements, ie tensile forces in the overlap perpendicular to the end face of the precast elements, lateral forces perpendicular to the plane of the pane and, most importantly, transverse force parallel to the joint longitudinal direction. The latter represents a construction practice very frequently occurring load case.

Für die Querkraftübertragung parallel zur Fuge sind verschiedene industriell gefertigte Verbindungselemente bekannt, wie sie schematisch in Fig. 5 dargestellt sind. Es gibt kontinuierliche Profilelemente (Fig. 5c)), wie beispielsweise die Pfeifer-VS®-Schiene, PEEIEER-VS®-Leiste, Betomax-Schlaufmax, Philipp-Schiene, und auch Einzelelemente (Fig. 5a), b)), die durch mehrfach wiederholte Anordnung von Bewehrungsschlaufen in der Fertigteilfuge übereinander die Querkraftübertragung sicherstellen sollen. Die Längen dieser Schienen und Leisten liegt aus logistischen Gründen bei etwa 1,20 m. Um Geschosshöhe zu erreichen, werden mehrere Schienenelemente nahtlos aneinandergefügt. Wenn weniger Schlaufen in einer Fuge benötig werden, so kommen einzelne Verwahrkästen mit je nur einer Schlaufen mit individuellem Abstand zum Einsatz. Beispielhaft können im Geschossbau oben zwei und unten zwei Einzelschlaufen benötigt werden.For the transverse force transmission parallel to the joint various industrially manufactured fasteners are known, as shown schematically in FIG Fig. 5 are shown. There are continuous profile elements ( Fig. 5c )), such as the Pfeifer VS® rail, PEEIEER VS® rail, Betomax Schlaufmax, Philipp rail, and also individual elements ( Fig. 5a ), b)), which are to ensure the transverse force transmission by repeatedly repeated arrangement of reinforcing loops in the precast joint above the other. The lengths of these rails and strips is for logistical reasons at about 1.20 m. To reach floor height, several rail elements are joined together seamlessly. If fewer loops are needed in a joint, individual deposit boxes are used with only one loop at a distance. By way of example, two and two individual loops may be required in the floor above.

Als Einzelelemente stehen beispielsweise die Pfeifer-VS®-Box (Fig. 5a)) und die Philipp-Verbindungsschlaufe (Fig. 5b)) zur Verfügung. Beiden ist gemein, dass es sich um einen länglichen Verwahrkastenkastens handelt, an dessen einem Ende eine Seilschlaufe angeordnet ist, die im Inneren des Verwahrkastenkastens verwahrt werden kann. Die Gesamtlänge ist im Wesentlichen auf die eine Schlaufe abgestimmt und wesentlich kürzer als die Schienen und Leisten. Im Endzustand sind die Einzelboxen am Grund der Vergussnut angeordnet, und die einander gegenüberliegenden Schlaufen werden herausgeklappt und überlappend durch den eingebrachten und erhärtenden Mörtel verbunden.The individual elements are, for example, the Pfeifer VS® box ( Fig. 5a )) and the Philipp connection loop ( Fig. 5b )) to disposal. Both have in common that it is an elongated storage box, at one end of a rope loop is arranged, which can be stored inside the storage box. The overall length is essentially matched to the one loop and much shorter than the rails and bars. In the final state, the individual boxes are arranged at the bottom of the Vergussnut, and the opposing loops are folded out and connected overlapping by the introduced and hardening mortar.

Bei den bekannten Verbindungselemententen hat sich jedoch gezeigt, dass insbesondere im Bereich von Einzelelementen und/oder freien Rändern eine frühzeitige Rissbildung im Beton bzw. Mörtel der Verbindung auftritt, wodurch die Tragfähigkeit, Steifigkeit und Dauerhaftigkeit der Verbindung beeinträchtigt wird.In the case of the known connecting element elements, however, it has been shown that, especially in the region of individual elements and / or free edges, premature cracking in the concrete or mortar of the connection occurs, which impairs the load capacity, rigidity and durability of the connection.

Ferner offenbart die US 6,308,478 B1 eine Verbindungsvorrichtung mit einer Mehrzahl von beispielsweise vier oder mehr Schlaufenelementen, die in einem gemeinsamen Verwahrkasten aufnehmbar und aus diesem herausklappbar sind. Darüber hinaus offenbart die CH 666931 A5 eine Verbindungsvorrichtung mit einem Verwahrkasten und einer Mehrzahl gleichmäßig angeordneter Betonstahlelemente, die in dem Verwahrkasten aufnehmbar und aus diesem herausbiegbar sind.Further, the US 6,308,478 B1 a connecting device with a plurality of, for example, four or more loop elements, which can be received in a common storage box and folded out of this. In addition, the reveals CH 666931 A5 a connecting device with a storage box and a plurality of uniformly arranged reinforcing steel elements, which are receivable in the storage box and herausbiegbar out of this.

Darstellung der ErfindungPresentation of the invention

Es ist daher Aufgabe der vorliegenden Erfindung, beim querkraftschlüssigen Verbinden von Betonfertigteilen ein verbessertes Tragverhalten einer Verbindung bei Querkraftbeanspruchung zu ermöglichen.It is therefore an object of the present invention to enable the transverse force-locking connection of precast concrete elements an improved load-bearing behavior of a compound under transverse force stress.

Diese Aufgabe wird erfindungsgemäß durch ein Verfahren zur Herstellung eines Betonfertigteils nach Anspruch 1, ein Betonfertigteil nach Anspruch 5, eine Kombination nach Anspruch 8 sowie eine Verwendung nach Anspruch 9 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den abhängigen Ansprüchen angegeben.This object is achieved by a method for producing a precast concrete part according to claim 1, a precast concrete part according to claim 5, a combination according to claim 8 and a use according to claim 9. Advantageous developments of the invention are specified in the dependent claims.

Der Erfindung liegt die Erkenntnis zugrunde, dass sich bei kompakten Verbindungselementen mit nur einer Bewehrungsschlaufe oder an freien Enden schienenartiger Verbindungselemente bei Querkraftbeanspruchung kein Kräftegleichgewicht einstellt, bei welchem die wesentlichen Zugkräfte in der Verbindung durch Bewehrungselemente aufgenommen werden.The invention is based on the finding that in compact fasteners with only one reinforcement loop or at the free ends of rail-like fasteners with transverse force stress no balance of power adjusts, in which the essential tensile forces are absorbed in the connection by reinforcing elements.

Die Erfindung stellt daher darauf ab, das Verbindungselement insbesondere auch bei kompakten Abmessungen derart auszugestalten und einzusetzen, dass die Zugkräfte, die in der Verbindung infolge einer schrägen Betondruckstrebe durch Querkraftbeanspruchung entstehen, durch Bewehrungselemente aufgenommen und weitergeleitet werden. Zu diesem Zweck ist erfindungsgemäß vorgesehen, dass bei einem gattungsgemäßen Verbindungselement die Durchdringungsöffnungen der zwei Bewehrungsschlaufenelemente nahe gegenüberliegender Enden des Verwahrkastens vorgesehen sind. Mit anderen Worten liegen bei der Erfindung zwei gegenüberliegende Bewehrungsschlaufen im herausgebogenen Zustand (Endzustand) nahe den jeweiligen Enden des Verwahrkastens.The invention therefore aims to design and use the connecting element in particular even with compact dimensions such that the tensile forces that arise in the connection as a result of an oblique concrete strut by transverse force stress, are absorbed and forwarded by reinforcing elements. For this purpose, the invention provides that in a generic connection element, the penetration openings of the two reinforcing loop elements are provided near opposite ends of the storage box. In other words, in the present invention, two opposing reinforcing loops are in the bent-out state (final state) near the respective ends of the storage box.

Hierdurch ergibt sich bei jedem einzelnen, erfindungsgemäß eingesetzten Verbindungselement ein in sich geschlossenes Tragverhalten, bei dem sich infolge Querkraftbeanspruchung eine geneigte Druckstrebe im Beton ausbilden kann, die sich an ihren (gedachten) Enden auf den Bewehrungsschlaufen des Verbindungselements abstützen kann, um das Einleiten übermäßiger Zugkräfte in den Beton bzw. Mörtel zu vermeiden. Auf diese Weise kann einer schädlichen Rissbildung im Verbindungsbereich wirksam vorgebeugt werden, was neben der Tragfähigkeit auch die Dauerhaftigkeit und Steifigkeit der Verbindung deutlich erhöht. Gleichzeitig besitzt das erfindungsgemäß eingesetzte Verbindungselement eine einfache Konstruktion und kann ohne Veränderung des bisherigen Bauablaufes problemlos eingesetzt werden.This results in each individual, used according to the invention fastener a self-contained support behavior in which due to transverse force stress an inclined compression strut can form in concrete, which can be supported at their (imaginary) ends on the reinforcing loops of the connecting element to initiate excessive tensile forces in the concrete or mortar to avoid. In this way, a harmful cracking in the connection area can be effectively prevented, which in addition to the load capacity and the durability and rigidity of the compound significantly increased. At the same time, the connecting element used according to the invention has a simple construction and can be used without modification of the previous construction process without problems.

Dabei stellt ein Verbindungselement mit genau zwei Bewehrungsschlaufenelementen eine erfindungsgemäße Ausgestaltung dar. Diese ist höchst variabel einsetzbar und besitzt im Unterschied zu bekannten Einzelelementen ein deutlich verbessertes, in sich geschlossenes Tragverhalten.In this case, a connecting element with exactly two reinforcing loop elements is an embodiment according to the invention. This is highly variable in use and has, in contrast to known individual elements, a significantly improved, self-contained load-bearing behavior.

Gemäß einer Weiterbildung der vorliegenden Erfindung ist vorgesehen, dass der maximale Abstand der endnahen Durchdringungsöffnungen von einem Ende in Längsrichtung des Verwahrkastens geringer ist als das 0,5-fache einer Schlaufenlänge, um welche die Bewehrungsschlaufenelemente im herausgebogenen Zustand von dem Verwahrkasten hervorstehen. Hierdurch wird ein besonders kompaktes Verbindungselement bereitgestellt. Darüber hinaus kann sich eine infolge von Querkraftbeanspruchung ausbildende Betondruckstrebe bei randnaher Anordnung der Durchdringungsöffnungen und somit der eingebauten Bewehrungsschlaufenelemente wirksam an den nahegelegenen Enden des Verwahrkastens abstützen, wodurch das Tragverhalten des Verbindungselements weiter verbessert wird. Dabei ist es bevorzugt, dass der maximale Abstand der endnahen Durchdringungsöffnungen von einem Ende in Längsrichtung des Verwahrkastens geringer ist als das 0,25-fache, besonders bevorzugt das 0,1-fache der Schlaufenlänge.According to one embodiment of the present invention, it is provided that the maximum distance of the near-end penetrating openings from one end in the longitudinal direction of the storage box is less than 0.5 times a loop length by which the reinforcing loop elements project from the storage box in the bent-out state. As a result, a particularly compact connection element is provided. In addition, a concrete compression strut forming as a result of transverse force stress can be effectively supported at the proximal ends of the storage box with the perforation openings and thus the installed reinforcement loop elements arranged close to the edge, thereby further improving the load bearing behavior of the connection element. It is preferred that the maximum distance of the proximal penetrating openings from one end in the longitudinal direction of the storage box is less than 0.25 times, particularly preferably 0.1 times, the loop length.

Hinsichtlich kompakter Liefer- und Einbauabmessungen des erfindungsgemäßen Verbindungselements ist gemäß einer Weiterbildung vorgesehen, dass die Länge des Verwahrkastens geringer ist als das 2,5-fache einer Schlaufenlänge, um welche die Bewehrungsschlaufenelemente im herausgebogenen Zustand von dem Verwahrkasten hervorstehen. Gleichzeitig stellt diese Konfiguration jedoch auch sicher, dass die Bewehrungsschlaufenelemente im eingebauten Zustand ausreichend nahe beieinander liegen, sodass die Neigung einer sich zwischen den Bewehrungsschlaufenelementen einstellenden Druckstrebe nicht zu gering wird und die auftretenden Druckkräfte daher nicht übermäßig groß werden. Ein noch kompakteres Verbindungselement wird erfindungsgemäß erhalten, wenn die Länge des Verwahrkastens geringer ist als das 1,5-fache der Schlaufenlänge.With regard to compact delivery and installation dimensions of the connecting element according to the invention is provided according to a development that the length of the storage box is less than 2.5 times a loop length by which the reinforcing loop elements protrude in the bent-out state of the storage box. At the same time, however, this configuration also ensures that the reinforcing loop elements in the installed state are sufficiently close to each other so that the inclination of a pressure strut between the reinforcing loop elements does not become too low and therefore the compressive forces that occur do not become excessively large. An even more compact connection element is obtained according to the invention if the length of the storage box is less than 1.5 times the loop length.

Gemäß einer Weiterbildung der Erfindung ist ferner vorgesehen, dass zumindest zwei Bewehrungsschlaufenelemente im in den Verwahrkasten aufgenommenen Zustand einander zugewandt sind und bevorzugt einander zumindest teilweise überlappen, sodass das erfindungsgemäße Verbindungselement kaum größere Abmessungen besitzt als ein bekanntes Einzelschlaufenelement, jedoch ein drastisch verbessertes Tragverhalten aufweist.According to one embodiment of the invention, it is further provided that at least two reinforcing loop elements in the state taken in the storage box facing each other and preferably at least partially overlap each other, so that the connecting element according to the invention has hardly larger dimensions than a known single loop element, but has a drastically improved structural behavior.

Um eine wirksame Aufnahme und Weiterleitung der infolge einer Querkraftbeanspruchung auftretenden Kräfte im Beton sicherzustellen, ist gemäß einer Weiterbildung der vorliegenden Erfindung vorgesehen, dass der Verwahrkastenboden zumindest abschnittsweise durch Erhebungen und/oder Vertiefungen profiliert ist. Hierdurch wird sichergestellt, dass die Bewehrungsschlaufenelemente des Verbindungselements bei Querkraftbeanspruchung auch aktiviert werden, bevor sich eine übermäßige Verformung und Rissbildung im Bereich der Verbindung einstellt. Dabei ist es besonders bevorzugt, dass die Erhebungen und/oder Vertiefungen benachbart zu den Durchdringungsöffnungen vorgesehen sind, sodass sich das gewünschte, geschlossene Tragsystem unter Einbindung der Bewehrungsschlaufenelemente einstellt.In order to ensure effective absorption and transmission of the forces occurring in the concrete as a result of a transverse force stress, according to a development of the present invention it is provided that the trolley bottom is profiled at least in sections by elevations and / or depressions. This ensures that the reinforcing loop elements of the connecting element also activates under transverse force stress before excessive deformation and cracking occurs in the area of the joint. It is particularly preferred that the elevations and / or depressions are provided adjacent to the penetration openings, so that adjusts the desired, closed support system with the involvement of the reinforcement loop elements.

Das erfindungsgemäße Verbindungselement kann einzeln oder in Kombination mit gleichartigen oder andersartigen Verbindungselementen eingesetzt werden. Auf diese Weise wird durch eine lokal begrenzte Maßnahme das Tragverhalten der Gesamtverbindung vorteilhaft beeinflusst.The connecting element according to the invention can be used individually or in combination with similar or different types of connecting elements. In this way, the carrying behavior of the overall connection is advantageously influenced by a locally limited measure.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Fig. 1aFig. 1a
zeigt schematisch eine Perspektivansicht einer ersten Ausführungsform des erfindungsgemäßen Verbindungselements;shows schematically a perspective view of a first embodiment of the connecting element according to the invention;
Fig. 1bFig. 1b
zeigt schematisch eine Perspektivansicht einer zweiten Ausführungsform des erfindungsgemäßen Verbindungselements;shows schematically a perspective view of a second embodiment of the connecting element according to the invention;
Fig. 2Fig. 2
zeigt schematisch eine Perspektivansicht einer dritten Ausführungsform des erfindungsgemäßen Verbindungselements;shows schematically a perspective view of a third embodiment of the connecting element according to the invention;
Fig. 3Fig. 3
zeigt schematisch eine Modellvorstellung des Tragverhaltens zweier miteinander durch Verbindungselemente verbundener Betonfertigteile;shows schematically a model of the structural behavior of two interconnected by connecting elements precast concrete elements;
Fig. 4Fig. 4
zeigt schematisch eine querkraftschlüssige Verbindung von Betonfertigteilen unter Einsatz des erfindungsgemäßen Verbindungselements;shows schematically a transverse force-locking connection of precast concrete parts using the connecting element according to the invention;
Fig. 5Fig. 5
zeigt schematisch Verbindungselemente gemäß dem Stand der Technik.shows schematically connecting elements according to the prior art.
Ausführliche Beschreibung bevorzugter AusführungsformenDetailed description of preferred embodiments

Bevorzugte Ausführungsformen der Erfindung werden nachfolgend ausführlich unter Bezugnahme auf die begleitenden Zeichnungen beschrieben.Preferred embodiments of the invention will now be described in detail with reference to the accompanying drawings.

Fig. 1a zeigt schematisch ein Verbindungselement 20 gemäß einer ersten Ausführungsform der vorliegenden Erfindung. Das Verbindungselement 20 dient zum querkraftschiüssigen Verbinden von Betonfertigteilen an einer Fuge mit Querkräften parallel zur Fugenlängsrichtung und umfasst einen Verwahrkasten 1 sowie zwei herausbiegbare Bewehrungsschlaufenelemente 3. Der Verwahrkasten 1 besitzt eine längliche, hohlkastenartige Form mit einer Länge L und zwei längsstirnseitigen Enden 1a, 1b. In einem Verwahrkastenboden 1c sind zwei Öffnungen 1', 1" vorgesehen, an welchen die Bewehrungsschlaufenelemente 3 den Verwahrkasten 1 durchdringen. Fig. 1a schematically shows a connecting element 20 according to a first embodiment of the present invention. The connecting element 20 serves for the transverse force joining of precast concrete elements to a joint with transverse forces parallel to the joint longitudinal direction and comprises a storage box 1 and two bendable reinforcing loop elements 3. The storage box 1 has an elongated, hollow box-like shape with a length L and two longitudinal ends 1a, 1b. In a storage box floor 1c two openings 1 ', 1 "are provided, on which the reinforcement loop elements 3 penetrate the storage box 1.

Bei den Bewehrungsschlaufenelementen 3 kann es sich beispielsweise um Betanstabstahl oder um flexible Seilelemente handeln, die an ihren freien Enden über eine Klemme 2, Muffe oder dergleichen verbunden sind.The reinforcement loop elements 3 may be, for example, beta steel bars or flexible cable elements which are connected at their free ends via a clamp 2, sleeve or the like.

Die Durchdringungsöffnungen 1', 1" sind erfindungsgemäß nahe den gegenüberliegenden Enden 1a, 1b des Verwahrkastens 1 vorgesehen, wie in Fig. 1a gezeigt. Dabei ist es bevorzugt, dass der in Fig. 1a gezeigte, maximale Abstand a der Durchdringungsöffnungen 1', 1" von den Enden 1a, 1b des Verwahrkastens 1 geringer ist als das 0,5-fache der untenstehend noch näher definierten Schlaufenlänge 1. Darüber hinaus ist der maximale Abstand a der Durchdringungsöffnungen 1', 1" von den Enden 1a, 1b des Verwahrkastens 1 zumindest bei kompakten Verbindungselementen bevorzugt geringer als das 0,1-fache der Länge L des Verwahrkastens.The penetrating openings 1 ', 1 "are according to the invention provided near the opposite ends 1a, 1b of the storage box 1, as in Fig. 1a shown. It is preferred that the in Fig. 1a shown, the maximum distance a of the penetration openings 1 ', 1 "from the ends 1a, 1b of the storage box 1 is less than 0.5 times the below defined in more detail loop length 1. In addition, the maximum distance a of the penetration openings 1', 1 "of the ends 1a, 1b of the storage box 1, at least for compact fasteners preferably less than 0.1 times the length L of the storage box.

Ferner ist die Länge L des Verwahrkastens derart ausgelegt, dass die Bewehrungsschlaufen 3 problemlos im Inneren des Verwahrkastens 1 aufgenommen werden können, wie in Fig. 1a gezeigt. Dabei sind die Schlaufen 3 im Unterschied zum Stand der Technik einander zugewandt. Ausgehend von diesem Zustand können die Schlaufen 3 aus dem Verwahrkasten 1 herausgebogen werden, um den in Fig. 2 gezeigten Endzustand zu erreichen, in welchem die Schlaufen 3 um eine Schlaufenlänge 1 von dem Verwahrkasten 1 hervorstehen. In der in Fig. 1a gezeigten Ausführungsform ist die Länge L des Verwahrkastens 1 etwas geringer als das 2,5-fache der Schlaufenlänge 1.Further, the length L of the storage box is designed such that the reinforcing loops 3 can be easily accommodated inside the storage box 1, as in FIG Fig. 1a shown. The loops 3, in contrast to the prior art, face each other. Based on this state, the loops 3 can be bent out of the storage box 1 to the in Fig. 2 to reach shown final state in which the loops 3 protrude by a loop length 1 of the storage box 1. In the in Fig. 1a In the embodiment shown, the length L of the storage box 1 is slightly less than 2.5 times the length of the loop 1.

Fig. 1b zeigt ein Verbindungselement 20 gemäß einer zweiten bevorzugten Ausführungsform der Erfindung. Das in Fig. 1b gezeigte Verbindungselement 20 unterscheidet sich von demjenigen gemäß der in Fig. 1a gezeigten, ersten Ausführungsform in der Länge L des Verwahrkastens 1. Diese ist bei der in Fig. 1b gezeigten, zweiten Ausführungsform erheblich geringer und beträgt etwas weniger als das 1,5-fache der Schlaufenlänge 1. Hierdurch ergibt sich ein noch kompakteres Verbindungselement, in welchem die Schlaufen 3 im eingeklappten Zustand überlappend angeordnet sind. Gleichzeitig ist der maximale Abstand a der Durchdringungsöffnungen 1', 1" in der zweiten Ausführungsform absolut gesehen etwa genauso groß wie in der ersten Ausführungsform, wodurch sich jedoch ein etwas größeres Verhältnis zwischen maximalem Abstand a und Länge L des Verwahrkastens ergibt. Fig. 1b shows a connecting element 20 according to a second preferred embodiment of the invention. This in Fig. 1b shown connecting element 20 differs from that according to the in Fig. 1a shown, first embodiment in the length L of the storage box 1. This is in the in Fig. 1b shown second embodiment considerably less and is slightly less than 1.5 times the loop length 1. This results in a more compact connection element in which the loops 3 are arranged overlapping in the folded state. At the same time, in the second embodiment, the maximum distance a of the penetration openings 1 ', 1 "in absolute terms is approximately the same as in the first embodiment, which, however, results in a somewhat larger ratio between the maximum distance a and length L of the storage box.

Eine dritte bevorzugte Ausführungsform des erfindungsgemäßen Verbindungselements 20 ist in Fig. 2 schematisch in einer Perspektivansicht dargestellt. Diese unterscheidet sich von der in Fig. 1a gezeigten, ersten Ausführungsform durch Profilierungen, die in der Form von Vertiefungen 12 im Verwahrkastenboden 1c vorgesehen sind. Dabei sind die Vertiefungen 12 in der vorliegenden Ausführungsform benachbart zu den Durchdringungsöffnungen 1', 1'' vorgesehen.A third preferred embodiment of the connecting element 20 according to the invention is shown in FIG Fig. 2 schematically shown in a perspective view. This is different from the one in Fig. 1a shown first embodiment by profiling, which are provided in the form of recesses 12 in the storage box floor 1 c. In this case, the recesses 12 are provided in the present embodiment adjacent to the penetration openings 1 ', 1''.

Ferner zeigt Fig. 2 das Verbindungselement 20 mit um die Länge 1 herausgebogenen Bewehrungsschlaufenelementen 3, d.h. in dem Endzustand, welchen das Verbindungselement in einer Verbindung von Betonfertigteilen einnimmt. Als Bezugspunkt für die Schlaufenlänge 1 dient hierbei, wie in Fig. 2 gezeigt, der Verwahrkastenboden 1c.Further shows Fig. 2 the connecting element 20 with bent by the length of 1 Reinforcement loop elements 3, ie in the final state, which occupies the connecting element in a combination of precast concrete parts. As reference point for the loop length 1 serves here, as in Fig. 2 shown, the storage box floor 1c.

Eine Verbindung von Betonfertigteilen unter Einsatz des erfindungsgemäßen Verbindungselements 20 ist schematisch in Fig. 4 dargestellt, die sowohl eine vertikale als auch eine horizontale Schnittansicht der Verbindung zeigt. Wie insbesondere in der unten dargestellten, horizontalen Schnittansicht zu erkennen ist, sind die erfindungsgemäßen Verbindungselemente 20 in stirnseitigen Vergussnuten 11 von miteinander zu verbindenden Betonfertigteilen 5 vorgesehen. Die Betonfertigteile 5 sind mit ihren Stirnseiten derart nebeneinander gestellt, dass sich im Bereich der Vergussnuten 11 eine Fuge 10 bildet, die später mit Vergussmörtel gefüllt wird. Nach dem Nebeneinanderstellen der Betonfertigteile 5 werden die Bewehrungsschlaufenelemente 3 aus den Verwahrkästen 1 herausgebogen, sodass sich die Bewehrungsschlaufenelemente 3 einander gegenüberliegender Verbindungselemente 20 überlappen. Anschließend wird ein Montagestab 8 aus Betonstahl durch die Überlappungen geführt. Abschließend wird der Verguss der Fuge vorgenommen, um die Fertigteile 5 kraftschlüssig miteinander zu verbinden. Dabei sind die Verbindungselemente 20, wie im oberen Teil von Fig. 4 in dem Vertikalschnitt zu erkennen ist, bevorzugt gleichmäßig über die Betonfertigteile 5 angeordnet.A connection of precast concrete parts using the connecting element 20 according to the invention is shown schematically in FIG Fig. 4 showing both a vertical and a horizontal sectional view of the connection. As can be seen in particular in the horizontal sectional view, shown below, the connecting elements 20 according to the invention are provided in end-side potting grooves 11 of precast concrete elements 5 to be joined together. The precast concrete elements 5 are placed side by side with their end faces in such a way that a gap 10 forms in the region of the grouting grooves 11 and is later filled with grout. After the juxtaposition of the precast concrete elements 5, the reinforcing loop elements 3 are bent out of the custody boxes 1, so that the reinforcing loop elements 3 of opposing connecting elements 20 overlap. Subsequently, a mounting bar 8 made of reinforcing steel is guided by the overlaps. Finally, the grouting of the joint is made to connect the finished parts 5 non-positively with each other. In this case, the connecting elements 20, as in the upper part of Fig. 4 can be seen in the vertical section, preferably evenly arranged over the precast concrete elements 5.

Ein Modell für das sich im Bereich zweier miteinander durch Verbindungselemente 20 verbundener Betonfertigteile 5 einstellende Tragverhalten ist schematisch in Fig. 3 dargestellt. Bei Vorliegen einer Querkraftbeanspruchung Q, deren Wirkrichtung schematisch durch Pfeile 6 in Fig. 3 angegeben ist, bildet sich zwischen den Betonfertigteilen 5 im Vergussmörtel bzw. Beton ein Druckfeld aus, das durch eine geneigte Betondruckstrebe 7 modelliert werden kann. Die modellhafte, geneigte Betondruckstrebe 7 stützt sich an ihren Enden auf den Verwahrkästen 1 der Verbindungselemente 20 ab, wobei sowohl die Verwahrkastenenden 1a, 1b als auch die Vertiefungen 12 des Verwahrkastenbodens 1c zu einer verbesserten Abstützung und Lastabtragung der Druckstrebe 7 beitragen. Um ein Kräftegleichgewicht zu erzielen, müssen die von der Druckstrebe 7 geweckten Kräfte 5 unten und oben aufgenommen werden. Dies erfolgt in dem Modell durch die an den Verwahrkastenenden angeordneten Bewehrungsschlaufenelemente 3, in denen sich horizontale Zugstreben 4 bilden. Ein derartiges Gleichgewicht ohne erhebliche Zugbeanspruchung des Betons kann sich bei Einsatz des erfindungsgemäßen Verbindungselements 20 durch die vorteilhafte Anordnung der Bewehrungsschlaufenelemente 3 einstellen, was bei bekannten Einzelschlaufenelementen bisher nicht möglich gewesen ist. Daher wird durch den Einsatz des erfindungsgemäßen Verbindungselements 20 die Entstehung von Schädigungen und Rissen im Mörtel bzw. Beton verhindert und somit die Tragfähigkeit, Steifigkeit und Dauerhaftigkeit der Verbindung beträchtlich erhöht.A model for the in the range of two interconnected by connecting elements 20 precast concrete 5 adjusting behavior is schematically in Fig. 3 shown. In the presence of a transverse force stress Q, whose effective direction is indicated schematically by arrows 6 in FIG Fig. 3 is specified, formed between the precast concrete 5 in the grout or concrete a pressure field, by a inclined concrete strut 7 can be modeled. The model, inclined concrete strut 7 is supported at its ends on the storage boxes 1 of the connecting elements 20, wherein both the Verwahrkastenenden 1 a, 1b and the recesses 12 of the deposit box bottom 1 c contribute to improved support and load transfer of the strut 7. In order to achieve an equilibrium of forces, the forces 5 aroused by the strut 7 must be taken up and down. This takes place in the model by means of the reinforcing loop elements 3 arranged on the storage bin ends, in which horizontal drawstrings 4 are formed. Such equilibrium without significant tensile stress on the concrete can be adjusted by the advantageous arrangement of the reinforcing loop elements 3 when using the connecting element 20 according to the invention, which has hitherto not been possible with known single loop elements. Therefore, the use of the connecting element 20 according to the invention prevents the formation of damage and cracks in the mortar or concrete and thus significantly increases the load capacity, rigidity and durability of the connection.

Die vorstehend beschriebenen, bevorzugten Ausführungsformen weisen jeweils genau zwei Bewehrungsschlaufenelemente auf, da sich hierdurch besonders kompakte und vielseitige Verbindungselemente mit einem in sich geschlossenen Tragverhalten ergeben.The preferred embodiments described above each have exactly two reinforcing loop elements, since this results in particularly compact and versatile connecting elements with a closed carrying behavior.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Verwahrkasten für die BewehrungsschlaufenDeposit box for the reinforcement loops
1a, b1a, b
VerwahrkastenendenVerwahrkastenenden
1c1c
Verwahrkastenbodenstorage box
1', 1"1 ', 1 "
Durchdringungsöffnungenpenetration holes
22
Endverankerung der BewehrungsschlaufeEnd anchorage of the reinforcement loop
33
Bewehrungsschlaufe aus Drahtseil oder BetonstahlReinforcement loop made of wire rope or reinforcing steel
44
Horizontale ZugkraftHorizontal traction
55
Betonfertigteil wand- oder stützenartigPrecast concrete wall or pedestal
66
Querkraft parallel zur WandfugeTransverse force parallel to the wall joint
77
Schräge Druckstrebe im VergussbereichOblique pressure strut in the casting area
88th
Montagestab aus BetonstahlAssembling rod made of reinforcing steel
99
Bereich mit VergussmortelArea with grouting mortar
1010
Fuge zwischen zwei BetonfertigteilenJoint between two precast concrete elements
1111
Vergussnutgrouting groove
1212
Vertiefungen oder Erhebungen zur Verbesserung des DruckstrebenangriffsDepressions or elevations to improve the strut engagement
2020
Verbindungselementconnecting element
LL
Länge des VerwahrkastensLength of the storage box
11
Schlaufenlängestrap

Claims (13)

  1. Method for the manufacture of a precast concrete part (5), in which at at least one end face of the precast concrete part (5) are arranged several connecting elements (20) which serve to join precast concrete parts (5) by transverse force locking at a joint (10) with transverse forces parallel to the longitudinal direction of the joint and comprise a preferably elongate storage box (1) and exactly two reinforcing loop elements which can be received in the storage box (1) and bent out of the latter, wherein the reinforcing loop elements (3) pass through the storage box (1) in each case in the region of a through-opening (1', 1") in the storage box (1), characterised in that the through-openings (1', 1") for the two reinforcing loop elements (3) are provided near opposite ends (1a, 1b) of the storage box (1).
  2. Method according to claim 1, characterised in that the connecting elements (20) are arranged evenly over the precast concrete part (5).
  3. Method according to claim 1 or 2, characterised in that the connecting elements (20) are arranged adjacent to each other.
  4. Method according to any of the preceding claims, characterised in that the connecting elements (20) are arranged on the bottom of a casting groove (11) at the end face of the precast concrete part (5).
  5. Precast concrete part, in which at at least one end face are arranged several connecting elements (20) which serve to join precast concrete parts (5) by transverse force locking at a joint (10) with transverse forces parallel to the longitudinal direction of the joint and comprise a preferably elongate storage box (1) and exactly two reinforcing loop elements which can be received in the storage box (1) and bent out of the latter, wherein the reinforcing loop elements (3) pass through the storage box (1) in each case in the region of a through-opening (1', 1") in the storage box (1), characterised in that the through-openings (1', 1") for the two reinforcing loop elements (3) are provided near opposite ends (1a, 1b) of the storage box (1) and wherein the connecting elements (20) are arranged in casting grooves (11) at the face of the precast concrete parts (5).
  6. Precast concrete part according to claim 5, characterised in that the connecting elements (20) are arranged evenly over the precast concrete part (5).
  7. Precast concrete part according to claim 5 or 6, characterised in that the connecting elements (20) are arranged on the bottom of a casting groove (11) at the end face of the precast concrete part (5).
  8. Combination of several connecting elements (20) which can be arranged at at least one end face of a precast concrete part (5), for joining precast concrete parts (5) by transverse force locking at a joint (10) with transverse forces parallel to the longitudinal direction of the joint, and comprise a preferably elongate storage box (1) and exactly two reinforcing loop elements which can be received in the storage box (1) and bent out of the latter, wherein the reinforcing loop elements (3) pass through the storage box (1) in each case in the region of a through-opening (1', 1") in the storage box (1), characterised in that the through-openings (1', 1") for the two reinforcing loop elements (3) are provided near opposite ends (1a, 1b) of the storage box (1).
  9. Use of several connecting elements (20) which serve to join precast concrete parts (5) by transverse force locking at a joint (10) with transverse forces parallel to the longitudinal direction of the joint, and comprise a preferably elongate storage box (1) and exactly two reinforcing loop elements which can be received in the storage box (1) and bent out of the latter, wherein the reinforcing loop elements (3) pass through the storage box (1) in each case in the region of a through-opening (1', 1") in the storage box (1), characterised in that the through-openings (1', 1") for the two reinforcing loop elements (3) are provided near opposite ends (1a, 1b) of the storage box (1), for arrangement at at least one end face of a precast concrete part (5).
  10. Method, precast concrete part, combination or use according to any of the preceding claims, characterised in that the maximum distance between the through-openings (1', 1") which are close to the ends, from one end (1a, 1b) in the longitudinal direction of the storage box (1), is shorter than 0.5 times, preferably 0.25 times, particularly - preferably 0.1 times a loop length (1) by which the reinforcing loop elements (3) protrude from the storage box (1) in the bent-out state.
  11. Method, precast concrete part, combination or use according to any of the preceding claims, characterised in that the length (L) of the storage box (1) is shorter than 2.5 times, preferably 1.5 times a loop length (1) by which the reinforcing loop elements (3) protrude from the storage box (1) in the bent-out state.
  12. Method, precast concrete part, combination or use according to any of the preceding claims, characterised in that the at least two reinforcing loop elements (3) in the state received in the storage box (1) face towards each other and preferably at least partially overlap each other.
  13. Method, precast concrete part, combination or use according to any of the preceding claims, characterised in that the bottom (1c) of the storage box is profiled in at least one section by projections and/or recesses (12), wherein the projections and/or recesses (12) are preferably provided adjacent to the through-openings (1', 1").
EP09153597A 2004-02-11 2005-02-10 Use of elements for connecting prefinished concrete elements Active EP2055846B1 (en)

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DE102008063525B4 (en) * 2008-12-18 2017-03-09 P & T Technische Mörtel GmbH & Co. KG Method and device for connecting precast concrete elements
DE202009000910U1 (en) 2009-01-23 2010-06-17 Philipp Gmbh Device for holding rope loops
DE102010003272A1 (en) 2010-03-25 2011-09-29 Georg Weidner Device for producing connection between precast concrete parts, has reinforcement part arranged in groove such that anchor region is extended outside support part on bottom side and connecting portion is inserted into groove
DE202010010127U1 (en) * 2010-07-12 2011-10-24 Pfeifer Seil- Und Hebetechnik Gmbh Deposit box and use of a deposit box
RU2499103C1 (en) * 2012-05-05 2013-11-20 Открытое акционерное общество Центральный научно-исследовательский и проектный институт жилых и общественных зданий (ОАО "ЦНИИЭП жилища") Method for manufacturing of cast in place and precast node of pillar connection with crossbar
CN110185155B (en) * 2019-06-25 2024-03-15 中国建筑标准设计研究院有限公司 Joint connector of prefabricated part, prefabricated wall system and construction method of prefabricated wall system
DE102020203108A1 (en) 2020-03-11 2021-09-16 Pfeifer Holding Gmbh & Co. Kg Connection element for frictional connection of concrete components

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EP0103060B2 (en) * 1982-09-10 1991-11-06 Pawe Ag Reinforcement-iron holder for use in joining cast concrete work and method of manufacturing the same
DE8336278U1 (en) * 1983-12-17 1984-03-29 Hoff, Walter, 4000 Düsseldorf REINFORCEMENT ELEMENT
FR2710091A1 (en) * 1993-09-16 1995-03-24 Sauveplane Pierre Device for placing and positioning reinforcement bars in formwork (shuttering) for reinforced concrete
DE9407998U1 (en) * 1994-05-13 1994-07-14 Dausend, Hans-Werner, 42279 Wuppertal Storage box for connection reinforcement bars
DE29612573U1 (en) * 1996-07-20 1997-11-20 Pfeifer Seil- und Hebetechnik GmbH & Co, 87700 Memmingen Device for joining precast concrete parts
DE29711542U1 (en) * 1997-07-03 1998-10-29 Pfeifer Seil- und Hebetechnik GmbH & Co, 87700 Memmingen Device for connecting reinforced concrete parts
EP1021630B1 (en) 1997-07-03 2001-11-21 Pfeifer Seil- und Hebetechnik GmbH & Co. Device for linking reinforced concrete elements
DE29906417U1 (en) * 1999-04-12 2000-09-14 Reus Gmbh & Co Kg Device for storing at least one elastically deformable rope loop in the surface of precast concrete parts
DE20111702U1 (en) * 2001-07-18 2002-11-21 Pfeifer Holding Gmbh & Co Kg Device for joining precast concrete parts
DE20319471U1 (en) * 2003-12-16 2005-01-20 Pfeifer Holding Gmbh & Co. Kg Joint for prefabricated concrete sections has grooves in joint faces to receive connectors armatures with wire loops to receive tension forces

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EP1589156B1 (en) 2009-05-27
DK2055846T3 (en) 2013-01-07
DK1589156T3 (en) 2009-09-07
EP1589156A3 (en) 2008-05-21
ATE432393T1 (en) 2009-06-15
ES2327047T3 (en) 2009-10-23
ES2396476T3 (en) 2013-02-21
PL1589156T3 (en) 2009-10-30
DE502005007331D1 (en) 2009-07-09
EP2055846A1 (en) 2009-05-06
DE202004002110U1 (en) 2005-06-30
PL2055846T3 (en) 2013-03-29
EP1589156A2 (en) 2005-10-26

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