EP3879045A1 - Élément de liaison destiné à la liaison à force des composants en béton - Google Patents

Élément de liaison destiné à la liaison à force des composants en béton Download PDF

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Publication number
EP3879045A1
EP3879045A1 EP21161776.6A EP21161776A EP3879045A1 EP 3879045 A1 EP3879045 A1 EP 3879045A1 EP 21161776 A EP21161776 A EP 21161776A EP 3879045 A1 EP3879045 A1 EP 3879045A1
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EP
European Patent Office
Prior art keywords
storage box
connecting element
joint
reinforcement
penetration
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.)
Withdrawn
Application number
EP21161776.6A
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German (de)
English (en)
Inventor
Matthias Kintscher
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.)
Pfeifer Holding GmbH and Co KG
Original Assignee
Pfeifer Holding GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pfeifer Holding GmbH and Co KG filed Critical Pfeifer Holding GmbH and Co KG
Publication of EP3879045A1 publication Critical patent/EP3879045A1/fr
Withdrawn legal-status Critical Current

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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
    • E04G21/126—Reinforcement continuity box for cable loops

Definitions

  • the precast concrete parts In order to erect the load-bearing structures of a building made of precast concrete parts, the precast concrete parts must be positively connected to one another. Usually disc-shaped wall elements, but also other concrete components, are connected to one another or often with vertical supports at vertical joints. Corresponding potting grooves are arranged on the end faces of the elements, on the base of which connecting elements with storage boxes are arranged, which in turn contain reinforcement elements that can be folded out. These reinforcement elements can consist of both reinforcing bars and flexible rope elements. Such connecting elements are for example in the WO 03/008737 disclosed.
  • loop-like elements are available perpendicular to the end face, which overlap in the joint when the precast concrete elements are assembled.
  • the loops that overlap in the joint are usually grouted with grout over the entire height of the precast elements in the grouting joint. After it has hardened, the grouting joint can, thanks to the overlapping reinforcement elements and the grouting mortar in the joint and in the storage box, transmit forces in different directions, i.e.
  • FIG. 6 Various industrially manufactured connecting elements are known for the transmission of shear forces parallel to the joint, as shown schematically in Fig. 6 are shown.
  • continuous profile elements such as the Pfeifer-VS®-Rail, PFEIFER-VS®-Bar, Betomax-Schlaufmax according to EP 0819213 A1 , Philipp rail, and also individual elements ( Fig. 6a) and Fig. 6b )), which are intended to ensure the transmission of shear forces by repeatedly arranging reinforcement loops in the precast joint on top of one another.
  • the length of these rails and strips is around 1.20 m for logistical reasons.
  • the Pfeifer-VS®-Box for example, is available as individual elements EP 0914531 A1 ( Figure 6a )) and the Philipp connection loop ( Figure 6b )) to disposal. Both have in common that it is an elongated short storage box, at one end of which a rope loop is arranged that can be stored inside the storage box. The total length is essentially matched to the one loop and much shorter than the rails and strips.
  • the individual boxes are arranged at the bottom of the grouting groove, which will later form the connecting joint between concrete components, and the loops lying opposite one another are folded out and overlapped by the applied and hardening mortar in the connecting joint.
  • Such a "double box” is aimed at creating a closed force model for the load-bearing behavior in each connecting element, so that excessive tensile forces can be prevented from being introduced into the grouting concrete or mortar.
  • this represented a technically significant improvement over a storage box with a single loop arranged on one side.
  • the strength-wise advantageous double box with two reinforcement elements close to the end requires the use of significantly more material for the design of the larger storage box, more rope for the formation of twice the number of reinforcement loops and also requires an increased number of production steps, which to leads to increased costs.
  • a double box leads to an increased complexity in handling and use due to the double number of reinforcement loops.
  • such a double box is significantly heavier in large quantities and, accordingly, more expensive to transport in large quantities.
  • Such a configuration is disadvantageous, since damage and deformations can often occur as a result of the storage box and thus rejects arise when the storage box is put into operation. This leads to unnecessary costs and delays, for example when erecting a building.
  • a connecting element for a non-positive connection of at least two concrete components at a joint with the forces preferably being able to be transmitted in all three directions described above.
  • this is an axial tensile force in the direction of a cable anchor of the reinforcement element described below, a transverse force perpendicular to the plane of the concrete component and the joint, and a transverse force parallel in the direction of the longitudinal axis of the joint of the concrete components.
  • connecting element for frictional connection of concrete components at a joint, which has an elongated storage box and a (preferably a single) reinforcement element that can be received in the storage box and bent out of it, wherein the reinforcement element with a rope anchor penetrates the storage box through at least one penetration of the storage box.
  • at least one tab is provided along a longitudinal edge of the storage box, which tab can be folded down to the inside or outside around the longitudinal edge of the storage box.
  • the invention is based on the knowledge that in connection elements with only one reinforcement loop close to the end or at free ends of rail-like connection elements under transverse forces after cracks have appeared in the grouting concrete or mortar, an equilibrium of forces is no longer established. As a result, the essential tensile forces that are caused during the transmission of transverse forces cannot be absorbed in the connection by the eccentric reinforcement element.
  • the aim of the invention is to design the connecting element, especially with compact dimensions and a reinforcement element, in such a way that the tensile forces, which arise in particular from transverse forces, are absorbed and passed on through the interaction of controllably small tensile stresses in the mortar and the reinforcement element.
  • tabs are provided on the longitudinal edges of the storage box, some of which are used for Inside and partly to the outside can be folded down in order to prevent the reinforcement element folded out in the storage box in the transport state from being folded out and at the same time to enable it to be closed with adhesive tape.
  • a connecting element for frictional connection of concrete components at a joint for this purpose, the connecting element having an elongated storage box and a reinforcement element which can be received in the storage box and bent out of it.
  • the reinforcement element with a rope anchor penetrates the storage box through at least one penetration of the storage box.
  • the reinforcement element can here preferably be designed as a loop, particularly preferably as a rope loop.
  • a tab is provided along a longitudinal edge of the storage box, which can be folded down to the inside or outside around the longitudinal edge of the storage box.
  • the "penetration" can preferably be a single opening or also be designed as two or more partial openings for receiving a multi-part reinforcement element.
  • An example can be a rope loop, as mentioned above, with two wire rope strands as reinforcement element, which are individually guided through small partial openings. This arrangement of openings is also referred to as penetration.
  • the penetration can have one or more, for example two penetrations for the cable strands.
  • the penetrations can have many shapes: For example, round, oval, slot-like, angular or square, Rectangular, each with rounded edges, with bends or bends, funnel-shaped, with a cylindrical attachment, with locking lugs, notches and notches.
  • the penetration can therefore have any shape in the storage box, as long as the reinforcement element can penetrate there.
  • a circular configuration of the penetration is preferred, since this form of penetration can be produced very cheaply and forces are evenly distributed in the storage box. In this way, deformation of the storage box can be prevented.
  • the resistance to tearing off the inner block of mortar i.e. the mortar which has been poured into the storage box
  • the resistance to tearing off the inner block of mortar can be increased, in particular at a transition to a casting joint, by unwinding the lateral flanges of the storage box towards the outside.
  • the cut surface of the inner mortar block on the upper side of the storage box opposite the penetration can be made larger.
  • the outwardly unwound flanges for receiving the adhesive tape closing the storage box make it possible to achieve a flat cross-section after removing the adhesive tape and potting the entire joint.
  • the term "storage box” is to be understood in such a way that it can include any arrangement that allows the reinforcement element to be accommodated in the box for the delivery or installation state.
  • at least two parts are usually necessary, which circumscribe a receiving volume for accommodating the reinforcement element - usually a folded cable loop.
  • This can be, for example, a box with turned-up sides, on the base of which the penetration is arranged, possibly closed off by a lid.
  • the reinforcement with penetration can possibly also be attached only to a flat cover, with the actual spatial housing being completely or partially removed after concreting. In some cases intermediate stages, for example in oval or rounded shape, are to be understood under the term storage box.
  • Just the ability of the The accommodating arrangement is understood here as a storage box.
  • Such a configuration according to the invention also makes it possible to achieve a compact design, so that more force can also be transmitted in the axial direction of the rope anchor per joint length.
  • the device thus also has particular advantages over the prior art for a connection in the case of transverse force transmission in a parallel or vertical direction.
  • connection element With such a force-fit connection of concrete components, an improved, preferably ductile, load-bearing behavior of a connection under shear force loading is made possible, while compact dimensions and simple usability of the connection element can be achieved with inexpensive production.
  • an arrangement with a self-contained load-bearing behavior can be achieved in which the pressure that occurs as a result of transverse force loading can be supported on the reinforcement loop of the connecting element.
  • such a connecting element has a simple design and can be used without any problems without changing the previous construction process.
  • the storage box according to the invention is trapezoidal in cross section to its longitudinal axis, the cross section (from the bottom of the storage box) expanding towards the longitudinal edges.
  • the storage box extends upwards with an increasing cross section.
  • the trapezoidal design is to be understood as the geometry of a flat square with two sides lying parallel to one another, the storage box bottom being understood as a lower, parallel side and an opposite, further parallel side merely fictitious is present, as this represents, for example, the opening of the storage box.
  • the non-parallel sides of the trapezoidal square are understood here as the legs of the storage box, that is to say the side walls of the storage box.
  • the storage box is preferably configured axially symmetrical in cross section to its longitudinal axis. That is, the legs extend at the same angle and the same distance from the axis of symmetry.
  • a tab is preferably provided along the two longitudinal edges of the storage box. This enables a symmetrical introduction of force along the longitudinal axis of the elongated storage box and thus prevents forces from being introduced unevenly into the concrete surrounding the connecting element.
  • a plurality of tabs are provided along the longitudinal edges of the storage box, which are preferably designed at a distance from one another.
  • the number of flaps that are unfolded or folded in can be "adjusted” or adjusted as required, as flexibly and individually as possible.
  • the required retention force can be adapted by the inwardly folded tabs in the transport state.
  • it can be achieved in this way that a sufficiently large number of tabs can be folded outwards in the installed state.
  • the tabs extend overall only over part of the longitudinal edges, preferably between 50% and 90% of the length of the storage box.
  • the tabs only extend between 60% and 80% of the length of the storage box.
  • all tabs are bent outwards. According to such a configuration, an increased, uniform introduction of force into the concrete surrounding the connecting element can be achieved and peaks in the introduction of force can thus be better prevented.
  • At least one tab preferably each facing tabs along the longitudinal edges, is / are folded inward so that they can secure a reinforcement element received within the storage box against unintentional folding out.
  • the most stable and reliable transport condition possible can be achieved in order to ensure that unnecessary deformations or damage to the storage box during the transport of the Connecting element with the reinforcement element folded into it, preferably a rope loop, occur.
  • the remaining part of the tabs is folded outwards.
  • multiple and repeated folding down along the longitudinal edges of the storage box between the transport state and the state of use, that is, in the state in which the cable loop is folded out of the storage box, is not necessary.
  • both positive effects namely the improved introduction of force into the concrete surrounding the connecting element, as well as the secure protection against unintentional folding out of the reinforcement element, preferably the cable loop, can be achieved .
  • the storage box is designed so that it can be completely filled with mortar having a tough consistency, in particular thixotropic mortar. This is favored by the trapezoidal cross-section and enables z. B. air inclusions or cavities when filling with plastic (thixotropic) mortar can be prevented and such air spaces can not have a negative effect on the load capacity. This means that the storage box can be completely filled with thixotropic mortar - even in the corner areas. This enables the connecting element to be used in a joint without the use of formwork.
  • thixotropic mortar can prevent formwork from having to be used, and the thixotropic mortar can be applied easily and quickly.
  • the storage box has transverse sides arranged at right angles to its longitudinal axis. According to such an embodiment, it can be achieved that the two adjoining components are not pushed apart when the joint with the storage boxes is subjected to transverse forces.
  • the connecting element has a single reinforcement element and the storage box preferably has a single penetration.
  • the transport volume and transport weight of the connecting element with a penetration arranged in the middle or almost in the middle of the storage box, through which the single reinforcement element runs can be reduced due to the reduced dimensions of the storage box compared to, for example, double boxes, the significantly reduced amount of rope used for the single reinforcement element , and the resulting reduced weight of the connecting element can be achieved with improved load-bearing properties at the same time.
  • the penetration is arranged such that the distance of the penetration from the center of the storage box is at most 10% of the length and / or at most 10% of the width of the storage box. More preferably, the penetration is arranged closer to the center of the storage box than to the edge of the storage box.
  • this connecting element has a single reinforcement loop that passes through the penetration, in the bent-out state (final state) in the center or only in an area of up to a maximum of 10% from the center in the length and / or width of the storage box.
  • each individual connecting element results in a self-contained load-bearing behavior in which, as a result of a transverse force loading, the pressure that occurs is applied to the center the reinforcement loop of the connecting element can support.
  • this avoids the introduction of excessive tensile forces into the concrete or mortar.
  • the length of the reinforcement loop is so short that the distance on both sides from the penetration to the short end faces of the storage box is particularly small. Due to this relative proximity between the reinforcement loop and the end of the storage box, favorable force and leverage ratios act and the tendency for the mortar block in the storage box to tear off prematurely can be reduced. This leads to increased resilience with a relatively small storage box.
  • the transverse force is transmitted through the storage box via the wire ropes and the grouting of the joint.
  • the transverse force that occurs is introduced into the precast concrete part by means of a very short overlap of the loops and the inclined pressure support of the centrally arranged reinforcement loop with the rope anchor.
  • the effective tensile resistance of the centrally arranged rope loop adequately covers these tensile forces in the areas.
  • it is important that the rope loop is as short as possible so that the distance from the rope anchor in the area of the penetration to the end of the narrow end faces of the storage box is as small as possible. In this way it can be ensured that the balance of forces is such that the overall connection for the parallel force is particularly effective.
  • the length of the reinforcement loop is so short that the distance on both sides from the penetration to the short end faces or the ends of the longer extension is particularly small in the case of round shapes of the storage box.
  • a preferred embodiment has a length of the foldable loop of about 1.1 to 1.6 times the width of the storage box. Due to this relative proximity between the reinforcement loop and the end of the storage box, favorable force and lever ratios act and the tendency for the mortar block in the storage box to tear off prematurely is greatly reduced.
  • the reinforcement element is arranged at a distance of up to a maximum of 5% of the length and / or up to a maximum of 5% of the width from the center of the storage box, and is particularly preferably arranged in the center of the storage box.
  • Such an embodiment is particularly easy to manufacture and, in contrast to known individual elements, has a significantly improved, self-contained load-bearing behavior.
  • the length of the storage box is less than 2.5 times a loop length, preferably less than 2.2 times the loop length by which the reinforcement element protrudes from the storage box in the bent-out state.
  • a particularly compact connecting element is achieved in this way.
  • a concrete / mortar compression strut that forms as a result of transverse forces can be effectively supported on the front of the compact storage box if the penetration and thus the built-in reinforcement element are arranged in the middle, which further improves the load-bearing behavior of the connecting element. That is, in addition to the compact and lightweight design of the connecting element, the most ductile load behavior possible with a robust load plateau on the surrounding concrete is ensured when using the connecting element, instead of spontaneous, brittle failure.
  • the delivery and packing requirements of the connecting element can also be improved.
  • material savings can be achieved for better competitiveness of the connecting element due to cost savings.
  • the connecting element forms part of a connection at the joint between concrete components, this connection preferably being suitable for the transmission of transverse force parallel to the longitudinal direction of the joint and / or transverse force perpendicular to the longitudinal direction of the joint and / or axial tensile force.
  • the connecting element according to the invention can be used individually or in combination with similar or different connecting elements. In this way, the load-bearing behavior of the overall connection is advantageously influenced by a locally limited measure.
  • the present invention further comprises a component, often a concrete component, in particular a precast concrete part, the connecting element preferably being arranged on an end face of the concrete component.
  • the precast concrete part With such a precast concrete part, it is possible to use a connecting element with compact dimensions and low costs in production and assembly, while the precast concrete part has an improved load-bearing behavior in all three directions of force and its reliability can be ensured.
  • the tabs can make it possible to prevent the storage box from being deformed or bent in the transport state, as a result of which a higher level of reliability and resistance of the connecting element can be ensured.
  • the present invention also has a combination of at least two concrete components described above, more than one connecting element being arranged in the direction of the longitudinal axis of the joint and the joint with the overlapping reinforcement elements being positively filled with mortar, in particular thixotropic mortar.
  • FIG. 1 shows schematically a connecting element 20 according to an exemplary embodiment of the present invention in an original state (transport and storage state).
  • the connecting element 20 is used for the frictional connection of precast concrete parts at a joint with various forces such as vertical and / or axial forces and / or transverse forces parallel to the longitudinal direction of the joint, and has a storage box 1, a loop introduction element 2 and a reinforcing element 3 that can be bent out. Embodiments without a separate loop introduction element are also possible.
  • An opening (penetration) 1 ' is provided in a storage box bottom 1a, at which the reinforcement element 3 penetrates the storage box 1 and the loop introduction element 2 can be inserted.
  • the storage box has a length of 12 to 20 cm, preferably about 16 cm.
  • the opening 1 ' is arranged exactly in the middle in a width and length of the storage box. In other words, the opening 1 'is arranged exactly centered in the plane of the storage box bottom 1a.
  • the reinforcement element 3 can be, for example, reinforcing steel, bleaching strips, round steel or flexible rope elements, which at their free ends via a Clamp 4, sleeve or the like are connected so that they form a loop.
  • the length L of the storage box is designed such that the reinforcement element in the form of a reinforcement loop 3 can be accommodated in the interior of the storage box 1 without any problems, as in FIG Fig. 1 shown.
  • the loop 3 can be bent out of the storage box 1 in order to protect the in Fig. 3
  • the loop 3 protrudes by a loop length SL from the storage box 1 perpendicular to the storage box bottom 1a.
  • the length L of the storage box 1 is slightly less than 2.5 times the loop length SL, preferably almost 2.0 times the loop length SL.
  • FIG. 3 shows Figure 3 the connecting element 20 with a reinforcing element 3 bent out by the length SL, ie in the final state in which the connecting element 20 connects precast concrete parts.
  • the storage box bottom 1a serves as a reference point for the loop length SL.
  • the loop introduction element 2 in the storage box 1 as one of shown many possible configurations of the penetration.
  • This loop introduction element 2 serves to receive the reinforcement element 3, which penetrates through the (penetration) opening 1 '. That is, the outer shape of the loop introduction element 2 corresponds in the exemplary embodiment of the connecting element to the shape of the opening 1 'of the storage box 1, which is configured in the storage box bottom 1a.
  • the opening 1 ' is circular in the storage box bottom 1a, and thus the loop introduction element 2 is also circular and is received in the opening 1' of the storage box bottom 1a of the storage box 1.
  • the present invention is not limited to such a configuration.
  • the loop introduction element 2 can thus accommodate the reinforcement element 2 in itself regardless of the folded or unfolded state of the reinforcement element 2.
  • the loop introduction element 2 is inserted into the opening 1 'of the storage case 1 and the reinforcement element 3 penetrates through the penetration bores 6 of the loop introduction element 2, which completely encloses the individual strands of the reinforcement loop 3 and seals against the ingress of concrete, through.
  • Figures 1 to 3 Storage boxes shown according to a first embodiment tabs 11 on the longitudinal edges of the storage box, which extend along the full length of the longitudinal edge of the storage box and can be folded down to the inside or outside around the longitudinal edge of the storage box.
  • the embodiment shown are the tabs extending along the two longitudinal edges of the storage box Outside of the storage box folded down.
  • FIG. 1 to 3 Storage box shown transverse sides 12 of the storage box, which are arranged at right angles to the longitudinal side of the storage box.
  • the transverse sides 12 of the storage box 1 are arranged at right angles to the longitudinal sides 13 of the storage box and are connected to the longitudinal sides 13 of the storage box at right angles thereto.
  • FIG. 13 shows a cross-sectional view through the storage box along the line AA in FIG Figure 2 .
  • FIG. 4 clearly and unmistakably a trapezoidal cross-sectional configuration of the storage box 1. That is, the cross-section in Figure 4
  • the storage box 1 shown has the storage box bottom 1a, from which the two long sides 13 of the storage box extend at an angle and not at right angles thereto.
  • the storage box is designed axially symmetrically along the axis S. That is, the angles between the storage box bottom 1a and the long sides 13 of the storage box are identical on both "sides of the axis S" and the height of the storage box 1 extending from the storage box bottom 1a is also identical on both sides.
  • Figure 4 Again the arrangement of the tabs 11 on the two longitudinal edges of the longitudinal side 13 of the storage box emerges more clearly.
  • Such an angled and not rectangular extension of the long sides of the storage box 13 from the storage box bottom 1a enables the storage box to be completely filled with thixotropic mortar.
  • a thixotropic mortar can be applied particularly easily without the need to use formwork for this purpose.
  • Figure 5 shows a further embodiment of the storage box.
  • Storage box shown with tabs formed on both sides of the storage box along the longitudinal edge Figure 5 an arrangement of the storage box with a plurality of tabs 11 which extend along the longitudinal edges of the storage box and which are designed at a distance from one another.
  • the “spacing” of the tabs relates to the arrangement of the tabs 11 along the longitudinal direction of the elongated storage box 1.
  • the reinforcement element 3 can be held securely in the transport state by the tabs that are additionally folded inward. This prevents the connecting element from being unintentionally folded out when it is in the transport state. According to such an embodiment, additional folding over can also be prevented.
  • connection element 20 A connection of concrete components using the connection element 20 according to the invention will now be briefly described below.
  • the connecting elements 20 are provided in end-face casting grooves of precast concrete parts to be connected to one another.
  • the prefabricated concrete parts are placed side by side with their front sides in such a way that they are in the area of the casting grooves Form a joint that will later be filled with grout.
  • the reinforcement elements 3 are bent out of the storage boxes 1 arranged between the respective precast concrete parts, so that the reinforcement elements 3 of opposing connecting elements 20 overlap.
  • an assembly rod for example made of reinforcing steel, is passed through the overlaps.
  • the joint is then cast in order to connect the precast concrete parts with one another in a force-locking manner.
  • the connecting elements 20 are preferably arranged uniformly over the precast concrete parts.
  • a pressure field is formed between the precast concrete parts in the grouting mortar or concrete, which pressure field can be accommodated on the storage boxes of the connecting elements 20.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
EP21161776.6A 2020-03-11 2021-03-10 Élément de liaison destiné à la liaison à force des composants en béton Withdrawn EP3879045A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020203108.8A DE102020203108A1 (de) 2020-03-11 2020-03-11 Verbindungselement zum kraftschlüssigen Verbinden von Betonbauteilen

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EP3879045A1 true EP3879045A1 (fr) 2021-09-15

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1684254A1 (de) * 1967-08-11 1971-05-27 Franz Gaertner Haltevorrichtung fuer platten- oder blockfoermige Masseformteile
EP0819213A1 (fr) 1995-04-07 1998-01-21 Robert Bosch Gmbh Detecteur de fuite dans un systeme d'alimentation en carburant
EP0914531A1 (fr) 1996-07-20 1999-05-12 Pfeifer Seil- und Hebetechnik GmbH & Co. Dispositif d'assemblage de pieces prefabriquees en beton
WO2003008737A2 (fr) 2001-07-18 2003-01-30 Pfeifer Holding Gmbh & Co. Kg Dispositif d'assemblage de composants en beton prefabriques
DE20305662U1 (de) * 2003-04-08 2004-08-19 Pfeifer Holding Gmbh & Co. Kg Haltevorrichtung
EP1589156A2 (fr) 2004-02-11 2005-10-26 Pfeifer Holding GmbH & Co. KG Connecteur pour éléments préfabriqués en béton
WO2008090260A1 (fr) * 2007-01-23 2008-07-31 Peikko Group Oy Procédé et appareil pour fournir un joint de construction renforcé dans une structure en béton
FR2927344A1 (fr) * 2008-02-13 2009-08-14 Alain Molard Couvercle pvc servant a l'etancheite des boites d'attentes ou de reservation
DE202010010127U1 (de) * 2010-07-12 2011-10-24 Pfeifer Seil- Und Hebetechnik Gmbh Verwahrungsbox und Verwendung einer Verwahrungsbox
WO2013064497A1 (fr) * 2011-10-31 2013-05-10 Inventio Ag Boîtier d'anneau de halage et dispositif d'ancrage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826985C2 (de) 1998-06-18 2003-07-03 Georg Weidner Schalungsteil
FI8099U1 (fi) 2008-08-11 2008-11-21 Group Finland Oy R Vaarnalenkki
DE202008017065U1 (de) 2008-12-23 2010-05-12 Pfeifer Holding Gmbh & Co. Kg Verbindungsvorrichtung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1684254A1 (de) * 1967-08-11 1971-05-27 Franz Gaertner Haltevorrichtung fuer platten- oder blockfoermige Masseformteile
EP0819213A1 (fr) 1995-04-07 1998-01-21 Robert Bosch Gmbh Detecteur de fuite dans un systeme d'alimentation en carburant
EP0914531A1 (fr) 1996-07-20 1999-05-12 Pfeifer Seil- und Hebetechnik GmbH & Co. Dispositif d'assemblage de pieces prefabriquees en beton
WO2003008737A2 (fr) 2001-07-18 2003-01-30 Pfeifer Holding Gmbh & Co. Kg Dispositif d'assemblage de composants en beton prefabriques
DE20305662U1 (de) * 2003-04-08 2004-08-19 Pfeifer Holding Gmbh & Co. Kg Haltevorrichtung
EP1589156A2 (fr) 2004-02-11 2005-10-26 Pfeifer Holding GmbH & Co. KG Connecteur pour éléments préfabriqués en béton
WO2008090260A1 (fr) * 2007-01-23 2008-07-31 Peikko Group Oy Procédé et appareil pour fournir un joint de construction renforcé dans une structure en béton
FR2927344A1 (fr) * 2008-02-13 2009-08-14 Alain Molard Couvercle pvc servant a l'etancheite des boites d'attentes ou de reservation
DE202010010127U1 (de) * 2010-07-12 2011-10-24 Pfeifer Seil- Und Hebetechnik Gmbh Verwahrungsbox und Verwendung einer Verwahrungsbox
WO2013064497A1 (fr) * 2011-10-31 2013-05-10 Inventio Ag Boîtier d'anneau de halage et dispositif d'ancrage

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