EP1387910B1 - Element de raccordement et procede de raccordement d'un composant en beton prefabrique a une partie d'un immeuble - Google Patents

Element de raccordement et procede de raccordement d'un composant en beton prefabrique a une partie d'un immeuble Download PDF

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Publication number
EP1387910B1
EP1387910B1 EP02748706A EP02748706A EP1387910B1 EP 1387910 B1 EP1387910 B1 EP 1387910B1 EP 02748706 A EP02748706 A EP 02748706A EP 02748706 A EP02748706 A EP 02748706A EP 1387910 B1 EP1387910 B1 EP 1387910B1
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EP
European Patent Office
Prior art keywords
connecting element
concrete
extending
section
prefabricated concrete
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.)
Expired - Lifetime
Application number
EP02748706A
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German (de)
English (en)
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EP1387910A1 (fr
Inventor
Christoph Neef
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Pfeifer Holding GmbH and Co KG
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Pfeifer Holding GmbH and Co KG
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Filing date
Publication date
Priority claimed from DE20108339U external-priority patent/DE20108339U1/de
Priority claimed from DE20108341U external-priority patent/DE20108341U1/de
Application filed by Pfeifer Holding GmbH and Co KG filed Critical Pfeifer Holding GmbH and Co KG
Publication of EP1387910A1 publication Critical patent/EP1387910A1/fr
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Publication of EP1387910B1 publication Critical patent/EP1387910B1/fr
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4114—Elements with sockets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/043—Connections specially adapted therefor

Definitions

  • the invention relates to a connecting element which is pourable into a precast concrete part and the connection of a precast concrete part with a building section, in particular a further precast concrete part is used, and a precast concrete part with such a connecting element. Moreover, the invention relates to a cover which can be fastened to the connecting element. Furthermore, the invention relates to a method for connecting a precast concrete part with a building section.
  • the column foot has as a connecting portion substantially a plate which is provided with an opening. Through the opening, a connection with a sleeve by means of a bolt with internal thread, which is formed in the concrete precast element to which the support is to be attached.
  • a suitable recess in the concrete of the support By a suitable recess in the concrete of the support, the area above the opening in the plate is accessible so that the anchoring bolt can be tightened.
  • a compensation of unavoidable tolerances can be done by an eccentric arrangement of the opening and by a slightly enlarged design of the opening.
  • wall shoes are known for the connection between a wall provided as a precast concrete wall and a building section, for example the foundation or a ceiling slab as Vorbehrssutenote, which are designed as well as the above-described column feet.
  • a wall provided as a precast concrete wall and a building section, for example the foundation or a ceiling slab as Vorbehrssutenote, which are designed as well as the above-described column feet.
  • a base plate which is connected by means of an anchoring bolt with the foundation or the ceiling plate, tensile forces from the wall in the building section to which the wall is mounted, can be initiated.
  • the disclosure AT 374 531 an anchoring structure that is concreted into a foundation to anchor a component to the foundation.
  • the anchoring structure allows for lateral force introduction into the foundation, much like a cast-in bar, the document does not disclose transverse force transmission between foundation and component unless the component to be connected is made of steel and a transverse force tooth, eg a piece of pipe, is welded.
  • the anchoring structure has a complicated structure with a high number of parts and welded joints.
  • the disclosure US 2,280,080 a connecting element which is concreted in reinforced concrete parts and has an elongated opening in which a fastening screw with a nut which engages in the connecting element, is displaceable.
  • the anchoring of the connecting element in the concrete takes place primarily by the shape of the connecting element itself and by additionally in the transverse direction (parallel to the concrete surface) inserted reinforcing rods.
  • EP 0 779 309 A1 a connecting or anchoring element made of plastic.
  • the anchoring element comprises a Y-shaped hollow rail into which a V-shaped nut is inserted in order to screw into this an anchoring rod.
  • the anchoring element has receptacles in which reinforcing bars can be loosely inserted, wherein the hollow rail extends substantially parallel to the surface of the reinforced concrete component into which it is installed.
  • a further object of the invention is to provide a method for joining a precast concrete part to a building section, which is simple to perform and improves the transmission of transverse forces between a prefabricated concrete part and a building section.
  • the invention is based on the idea to provide a connecting element, the direct, d. H. without a larger number of components, a lateral force-stiff connection between concrete or reinforcement of the finished part and a building section allows.
  • the connecting element according to the invention is pourable into a first precast concrete part and thereby serves the connection of the first precast concrete part with a building section, in particular a second precast concrete part, in a connecting direction in which tensile forces are transmitted and perpendicular to the transverse forces are transferable.
  • This connection is formed, for example, by tightening an anchoring bolt in the connecting direction, in which tensile forces can be transmitted after tightening.
  • the connecting element has at least one element extending substantially in the connecting direction, which defines a space extending in the connecting direction and open in the connecting direction, laterally open or closed. This item will be for the Training the connection used with another building section.
  • the element (s) defining the described space differ from box-like elements known in the prior art for keeping a mounting space in the vicinity of the connection element when pouring a connecting element in a precast concrete part.
  • the connection with a second precast concrete part or other section of building directly formed for example by an anchor plate is placed on an upper edge of this element to which an anchoring bolt is tightened in such a way that the connection with another building section takes place.
  • at least one permanently attached to the connecting element in particular welded reinforcing steel is provided for anchoring the connecting forces in the finished part.
  • connection element designed according to the invention consist, in particular, in the fact that the element extending in the longitudinal direction is used directly for producing the connection, for example by placing an anchor plate directly on this element. This makes it possible to dispense with welded cross struts, bars or the like.
  • the element extending substantially in the connection direction may be designed in many different ways.
  • two largely straight and flat plates may be provided, for example, parallel to each other, in the connecting element according to the invention that a space is defined between the plates, which is open at the side, but can be used advantageously in the manner described below.
  • a portion of an L, V or U profile may be provided as the connecting direction extending member.
  • the element is preferably provided with a square tube or rectangular shape as a hollow profile. Since this embodiment is currently preferred, reference will be made in particular to the use of a hollow profile to which the concrete or reinforcing bars are directly attached.
  • the connecting element according to the invention is in fact combined with an anchoring bolt and an anchor plate, which has a suitable size for being placed across the opening at the upper opening of the hollow profile and resting on the edges of the profile.
  • an anchoring bolt On the anchor plate is the head of an anchoring bolt or a nut and possibly an optionally provided washer.
  • the anchoring bolt extends through an opening in the anchor plate in the sleeve of that section of the building, for example, the foundation or a ceiling plate with which the precast concrete element provided with the connecting element according to the invention is to be connected.
  • the anchoring bolt may also be part of a differently shaped armature in the first component, such as a welded construction. It can be seen that is given by the comparatively large opening area of the hollow section according to the invention provided a comparatively extensive mobility of the prefabricated concrete part with respect to that part, with which this is to be connected, as well as with respect to its cast-in sleeves and accordingly with respect to the anchoring bolt and the anchor plate screwed therein ,
  • the reinforcing bars over a considerable length namely the length of the hollow profile are welded, so that here a reliable connection can be ensured.
  • no additional welding is required on the connecting element according to the invention even after its pouring into a precast concrete part.
  • the hollow profile according to the invention can be made comparatively thin-walled, and thus leads to a material saving and less expensive execution than the known in the prior art, relatively thick Baseplates.
  • a wall thickness of about 8 mm is currently preferred for the hollow profile.
  • a hollow profile is preferred for the extending in the direction of connection element, with which preferably at least one extending in the axial direction of the hollow profile reinforcing steel is connected.
  • the axial direction of the hollow profile is understood to be that direction in which the hollow space of the hollow profile extends. In this direction, at least one reinforcing steel is attached to the hollow profile, preferably welded to it.
  • the connecting element according to the invention is cast in a concrete precast element provided as a wall
  • the reinforcing steel as well as the intended section of a hollow profile extend in the vertical direction.
  • the hollow profile is therefore preferably open at its top and bottom and closed at its sides by the corresponding wall sections of the hollow profile.
  • the cross-sectional shape of the hollow profile which is provided for the connecting element according to the invention, is arbitrary, a hollow profile with a rectangular cross-section is preferred. It is further preferred that reinforcing steels are provided at all four corners of the rectangular hollow profile. This embodiment has proved to be sufficiently stable for all applications.
  • the reinforcing bars can be four single, straight bars. Alternatively, the four reinforcing bars can be combined in pairs to form two preferably one-piece, U-shaped brackets, which are welded to the hollow profile with the straight legs. Also individual reinforcing bars with hooks or end anchors are possible. Also conceivable are any serving for anchoring longitudinal rods made of steel, smooth, ribbed or threaded, which can form an anchoring mechanism.
  • the connecting element is particularly well suited for use in truss or beam precast elements when the element extending in the connection direction has a substantially U-shaped cross-section. This makes it possible that the finished part through the lateral opening of the U-shaped element through directly on the building section, for example, a console or a column head, can be placed so that no horizontal threading or mating of the components to be joined is required. At the same time a secure transferability of shear forces, which dominate in Binder- or beam finished parts against normal forces, thereby achieved.
  • connection element An especially simple and economically producible connecting element is obtained if the element extending in the connecting direction is formed by two individual elements each having an L-shaped cross-section, which are preferably connected to a rectangular hollow profile, reinforcing steels preferably being arranged in the region of the connection. As a result, a very rigid connection is achieved, wherein the reinforcing bars serve simultaneously as connecting rods of the longitudinally extending element.
  • the reinforcing steel or bars are symmetrically with respect to at least one axis, in particular the main axes of the element extending in the connecting direction. This will be a uniform Ensure distribution of stresses, and tilting or horizontal forces) are avoided.
  • the one or more reinforcing bars are arranged offset inwardly relative to the outer periphery of the extending in the connecting direction element.
  • the space required for the connecting element is reduced in the finished part, which is particularly advantageous in narrow or highly reinforced components and facilitates the introduction of the concrete on the edge of the component. The force is thus less close to the edge, which results in a more favorable load bearing capacity in concrete.
  • the connecting element according to the invention may indeed be provided without an anchoring bolt and an anchor plate directly combined therewith. In this case, it would have to be combined with a suitable anchoring bolt and an anchor plate at the latest when connecting with another precast concrete element or another section of the building.
  • a combination of the connecting element according to the invention an anchoring bolt, optionally supplemented by a nut, an anchor plate and optionally a washer is provided.
  • a plurality of connecting elements can advantageously be combined with one another by being connected to one another by one or more reinforcing steel bars.
  • the combination of the invention allows a uniform distribution of the connecting and anchoring forces, which is advantageous in particular for components with larger cross sections or high stresses is. At the same time larger component areas can be covered with a single, lightweight unit.
  • the connecting reinforcing steel bars are preferably fixedly attached to the elements extending in the longitudinal direction, in particular welded. But initially also loosely arranged around the elements bracket 34 stabilize the mechanism in the hardened concrete advantageous. Output forces from eccentric introduction of force through the connecting element 10 itself are absorbed both by loose and welded bracket.
  • the use of a unit formed by a plurality of fasteners also contributes to the carrying capacity of the finished part itself, in particular when the elements are enclosed according to a development of the invention by the connecting reinforcing steel bow.
  • a banding effect of the component cross-section is achieved, which is often required in particular in highly stressed connection areas.
  • the invention relates to a precast concrete part with at least one connecting element in one of the embodiments described above.
  • the advantages described for the connecting element can also be used for a precast concrete part which is provided directly with it.
  • the advantages according to the invention also result for a connection between a precast concrete element, which has at least one connecting element according to the invention, and another section of a building.
  • the connecting element according to the invention proves to be advantageous not only with regard to the simplicity of the design or the compensation of tolerances, but also with regard to the transferability of transverse forces.
  • the anchoring bolt can be used as a shear force mandrel and can be designed accordingly.
  • the possibility of using the anchoring bolt as a shear force mandrel consists in that according to the invention the cavity of the hollow profile and / or a mounting cavity provided in the vicinity of the connecting element installed in a precast concrete element is filled with concrete, in particular fast-hardening grouting concrete. As a result, the interaction of concrete and anchoring element or bolt can be used for the transmission of shear forces.
  • another objective provides a cover which has a filling opening for filling concrete and is preferably fastened to the connecting element in such a way that the cavity covered thereby can be cast with concrete .
  • the liquid poured concrete applies a certain pressure on the attached cover, so that according to the invention by appropriate measures, which are described in more detail below, to ensure that the cover reliably remains on the precast concrete part, and the cavity safely can be shed.
  • the cover of the invention is preferably used in combination with a connecting element and / or a precast concrete part, the cover is an independent component, which in German Utility Model no. 201 08 341.8 described as a priority document of this application and in principle can be used in other areas.
  • the mounting cavity above as well as the space provided in the connection direction extending element of the connecting element space can be shed after connection of the precast concrete part with a building section in such a way that the connection can be used for the transmission of shear forces.
  • the encapsulation also acts as corrosion protection.
  • the cover plate or the formwork element can be fastened to the connecting element in an advantageous manner. This ensures that no additional, in particular external holding devices, such as nails, dowels, cross members or other anchoring elements are required for tight coverage of the cover on the surface of the component in the region of the cavity to be cast. In this way, time and labor as well as costs for attaching and securely holding the cover are minimized.
  • the cover is designed for a particularly simple and clean casting of the mounting cavity by having at least one defined filling opening.
  • This is in contrast to the previously practiced approach, in which usually a mounting cavity was boarded by a board or the like, whereby it was ensured by the appropriate arrangement of the board that concrete could be poured into the mounting cavity.
  • the cover of the invention simplifies the Potting the mounting cavity considerably by covering them in any way, covering the cavity, on the precast concrete part is attached, and the defined filling opening is always given the opportunity to fill concrete for potting the mounting cavity.
  • the cover according to the invention is reusable as often as desired and facilitates the clean formation of precast concrete parts and their connections with each other. Alternatively, the cover may also remain on the now filled with solid concrete cavity.
  • the cover additionally comprises a Einglallülle or a filling beak on which / the filling opening is formed.
  • a reliable and simple attachment of the cover according to the invention by at least one band or strip-shaped element can take place, which can cooperate for example with a portion of a provided in a precast concrete element connecting element.
  • the band or strip-shaped element may be a cable tie, a wire or a sheet metal strip. These extend from a suitable element in the mounting cavity through an opening in the cover and can be tightened or bent on the outside of the cover such that the cover is securely fastened to the precast concrete part. It should be noted that the embodiment in which a cable tie is provided is currently particularly preferred.
  • the cover has at least one example, double-sided adhesive tape, by means of which the cover in the vicinity of the mounting cavity can be fastened.
  • the cover has at least one resilient clip or clip, with which / which the cover is clamped to the inner edge of the mounting cavity.
  • cover according to the invention is basically to be seen independently of a connecting element which is pourable into a precast concrete part, it is preferred to provide this in combination with such a connecting element.
  • a particularly reliable fastening of the cover can take place in that a fastening section in the form of a thread is provided on the connecting element.
  • a fastening section in the form of a thread is provided on the connecting element.
  • This may be provided for example in an anchor plate of the connecting element, or at one or more intended for reinforcement to the connecting element reinforcing steel, a nut may be welded.
  • a nut may be welded.
  • the thread or the one or more screws can be screwed in such a way that the cover is securely attached.
  • the cover according to the invention can in principle be provided independently of a precast concrete part, and it can be used several times to make the mounting cavities of several precast concrete successively filled with concrete.
  • the cover according to the invention is provided in combination with a precast concrete part, which offers the advantage that the cover in terms of their Dimensions can be adapted to the dimensions of the mounting cavity of a special precast concrete part to always guarantee a reliable operation.
  • the method according to the setting of the anchoring bolt perpendicular to its axis relative to the extending in the direction of connection element is achieved that a targeted lateral force transmission between the precast concrete part and the building section can take place.
  • the method is characterized by comparatively simple method steps.
  • the anchoring bolt is set by filling a cavity defined in the precast concrete element by the cavity extending in the connection direction and / or a mounting cavity provided in the vicinity of the connecting element with concrete.
  • a particularly stiff and slip-poor lateral force connection is achieved.
  • filling ensures corrosion protection of the steel or reinforcement components.
  • the connecting element 10 which is formed in the present embodiment as a wall shoe, consisting essentially of a portion of a hollow section 12 and - in the embodiment shown - four each provided at the corners of the hollow section reinforcing steel 14.
  • the reinforcing steel 14 acts it is known, provided with ribbed reinforcing bars, which have a depending on the application for the forwarding of the forces to be transmitted to be determined length.
  • the reinforcing bars are at the corners of the hollow section 12, which has an approximately rectangular cross section, via fillet welds 16, the better in Fig. 3 are visible, welded.
  • the fillet welds are over most of the length of the Hollow profile 12 is formed.
  • the hollow profile 12 may have a length of, for example, 80, 95, 120 or 135 mm, viewed in the axial direction, ie in the direction of extent of the reinforcing steel 14. It is understood, however, that the hollow profile may also have other dimensions depending on the application. For the longer side of the rectangular cross-section are currently provided dimensions of 120 or 140 mm, and for the shorter side of the rectangular cross-section dimensions of 60 or 70 mm.
  • the hollow profile can be made comparatively thin-walled by currently a wall thickness of 8 mm is preferred.
  • the reinforcing bars preferably have a length of the order of one meter.
  • FIG. 2 An alternative embodiment is in Fig. 2 shown.
  • the respective reinforcing bars 14 to a length of about 70% of the reinforcing bars 14 according to the embodiment of Fig. 1 be shortened.
  • two of the illustrated reinforcing bars 14 are combined to form U-shaped brackets.
  • the upper, free end of each reinforcing steel 14 shown continues after a substantially right-angled turn into a short transverse web, which leads to a further reinforcing steel 14.
  • the crossbar goes over after a largely rectangular turn in this reinforcing steel 14.
  • both the arranged on the short side of the hollow section 12 reinforcing bars 14 may be summarized in this way to form a U-shaped bracket, or that this is done for the two arranged on a common long side of the hollow section 12 reinforcing bars, such as in Fig. 2 is shown.
  • Fig. 3 is, as mentioned, to recognize the connection between the reinforcing bars 14 and the hollow section 12. This is preferably done by welding, in particular by fillet welds 16. It should be noted, however, that the connection can also be made in any other way, provided that the required strength is ensured.
  • the hollow profile is preferably produced by thermoforming and accordingly has rounded corners.
  • the connecting element 10 is cast in a precast concrete element 18, which is provided, for example, as a wall. Accordingly, the connecting element 10 according to the invention is located at the lower edge of the precast concrete part 18. Here, it serves to connect the precast concrete part 18 to another building section 20, in which it may be a foundation or a ceiling plate. At the required points 20 sleeves are embedded in concrete in this building section, in which an anchoring bolt 22 can be screwed. The tightening takes place in the embodiment shown by a nut 24 which is screwed onto the anchoring pin 22 and rests on a so-called anchor plate 28 via a washer 26.
  • the anchoring pin 22 may be embedded in concrete or glued in the building section 20 with an anchoring and protrude from the surface to then cooperate as intended with the connecting element 10.
  • the anchor plate 28 has a size such that it rests with a certain, two-sided projection on the upper edge of the hollow profile.
  • the anchor plate 28 extends in the direction of the shorter side of the rectangular cross section of the hollow profile 12. This configuration, the hollow profile and so that the precast concrete part 18, in which the connecting element 10 is concreted in concrete, to a large extent with respect to the anchor plate 28 and thus with respect to the building section 20 move. As a result, tolerances can be compensated without the existing restrictions.
  • the top and bottom of the hollow section 12 will usually be fully open for this purpose. However, it is not excluded and further allows the realization of the advantages of the invention, when the top and bottom are at least partially closed.
  • substantially larger openings can be provided here, in particular the upper and lower sides can be largely completely open, since the anchor plate 28 is still safe even with a comparatively extensive mobility of the wall shoe with respect to the anchor plate rests on the upper edge of the hollow section 12. After the correct arrangement of the precast concrete 18, the tightening of the nut 24 takes place.
  • a mounting cavity 30 is provided on a precast concrete part 18 which is provided with the connecting element 10 according to the invention, which can be cast with the building section 20 after the connection between the precast concrete part 18, so that the cavity of the hollow profile is filled will be, and between the anchoring pin 22 and the filled into the cavity concrete lateral forces can be transmitted as will be described in more detail later.
  • a certain window 30 is recessed in concreting the precast concrete element 18 in an area above the hollow section 12, which is formed by the fact that when concreting the precast concrete 18 in this area a recess body made of Styrofoam is arranged.
  • This recess body can be removed after hardening of the concrete without residue by placing it in a suitable, thin Separation film is welded.
  • Such a recess body is optionally provided together with the connecting element according to the invention.
  • the recess 30 allows the nut 24 to be tightened by a suitable tool.
  • FIGS. 5 to 10 each show a side view and a cross section of an embodiment of the connecting element 10 according to the invention and a combination 36 of the respective connecting elements 10, which are installed in a precast concrete support 18.
  • Fig. 5 shows four fasteners 10, which are respectively installed in the corners in the foot area of a precast concrete support 18.
  • the fasteners have, similar to the FIGS. 1 to 4 , in each case a hollow section 12, to which two reinforced concrete bars 14 are permanently attached via fillet welds 16.
  • the rods 14 are arranged on the outside of the hollow profile 12 so that they are approximately aligned with the adjacent side surface of the hollow profile. Therefore, reinforcing steel brackets 34 each connecting four connecting members to a connecting unit 36, as in FIG Fig. 5 to recognize flush with the outer surface of the hollow sections 12 and the reinforced concrete bars 14 abut.
  • the reinforcing steel brackets 34 thus enclose the four connecting elements 10 and are fixedly connected to them, for example by welding.
  • Brackets 34 achieve the same structural behavior in the concrete, when this is hardened.
  • laterally acting output forces are absorbed by the connecting element 10 in the case of an eccentric force attack of the reinforcing steel 14 with respect to the anchoring bolt 22.
  • By surrounding a confinement of the reinforced concrete cross-section is achieved at the same time, which improves the load capacity of the column foot.
  • the arrangement of the plurality of connecting elements 10 existing connection unit 36 is a by the arrangement achieved favorable structural behavior with low labor or installation costs.
  • the arrangement of four connecting elements in the component corners for example, instead of a central, correspondingly enlarged connecting element, not only ensures an improved or more uniform distribution of the stresses, but also increases the bending and shear force capacity of the component.
  • material costs and weight can be saved.
  • the unit 36 is easy to install, since not about four individual elements 10 must be provided and aligned, but the unit 36 can be installed quickly as a whole.
  • Fig. 6 shows an alternative embodiment, different from Fig. 5 distinguished primarily by the fact that the reinforcing bars 14 are arranged offset from the outer edges of the reinforced concrete precast prop inwards. This ensures that more space is available in the outer region of the component, which is often required for anchoring the longitudinal reinforcement of the reinforced concrete precast prop.
  • the increased concrete cover in the overlap area of the anchoring steels with the additional reinforcement reduces the splitting effect and in particular the risk of crack formation in the concrete.
  • the introduction of the concrete is facilitated on the edge of the component, which is very advantageous especially in highly reinforced components.
  • Fig. 7 shows a further alternative embodiment, different from Fig. 5 distinguished primarily by the fact that the hollow sections 12 are made substantially round.
  • Round tubes are particularly economical to produce, so that the overall construction 10 is inexpensive.
  • Fig. 8 shows yet another alternative embodiment, different from Fig. 5 distinguished primarily by the fact that the longitudinally extending elements are each formed by two individual elements 12 "each having an L-shaped cross-section, which are connected to a rectangular hollow profile, wherein in the region of the compound reinforcing bars 14 are arranged achieved simple production a very rigid connection, the reinforcing bars serve as connecting rods of the L-shaped individual elements 12 "simultaneously.
  • Fig. 9 a shows another alternative embodiment of the anchoring detail in the side view and in Figure b in cross-section of the anchor, in which the connecting elements 10 are arranged in the side surfaces of the concrete support 18 and do not come to lie in the corners.
  • the four connecting elements 10 are enclosed by reinforcing steel bars 34.
  • the assembly cavities 30 are located above the hollow sections 12.
  • the arrangement of fasteners 10 in the side surfaces of the concrete support 18 instead of their corners, these mounting cavities 30 are particularly easy to close and shed, especially in combination with the cover according to the invention, which will be described in more detail below ,
  • the arrangement in the side surfaces beyond a completely symmetrical arrangement of the anchoring rods 14 on the hollow section 12 is possible, which reduces output forces from Lastexzentriztician with respect to the anchoring pin 22.
  • Fig. 10 shows an arrangement of the connecting elements 10, which is particularly geared to be able to absorb a moment with respect to a bending axis of the support 18 increased. Also, this arrangement is advantageous if, for example, no access to a on the narrow side of the support 18 Mounting cavity 30 is feasible because this support, for example, adjacent to a wall. Again, the symmetrical arrangement of the anchoring rods 14 on the hollow section 12 is possible.
  • FIGS 11 and 12 each show a side view and a plan view of embodiments of the connecting element 10 according to the invention, which are installed in a precast reinforced concrete beam 18.
  • the entire connecting element 10 is indeed installed in the longitudinal direction of the rod-shaped precast concrete part 18 here. However, since it is a beam, the whole arrangement can be seen horizontally.
  • Fig. 11 shows two fasteners 10, which are respectively installed on the underside of a precast concrete beam 18, which is usually the bending tension side.
  • the fasteners have a portion of a U-profile 12 'to which four reinforced concrete rods 14 are welded via fillet welds 16 in a manner similar to that described above.
  • the U-profiles are installed in the beam 18 so that their opening faces the underside of the beam, so that the interior of the U-profiles 12 'from the outside or down is freely accessible.
  • a particularly simple and safe installation of the precast concrete beam 18 on the construction site, by the beam 18 on a supporting portion, such as a console of the building, just in the vertical direction can be stored, which in Fig. 11a indicated by an arrow.
  • Fig. 12 shows an alternative embodiment, different from Fig. 11 characterized in that one or more connecting elements 10 are provided which have a closed hollow profile 12.
  • the one or more fasteners 10 may be enclosed in the hollow profile portion of brackets 34 when it makes the lateral force removal in the beam 18 statically required.
  • the mounting cavity 30 is then located laterally from the hollow profile 12 and also laterally of the first bracket 34, so that there is no static disadvantage here.
  • the reinforcing bars 14 with fillet welds 16 can be arranged asymmetrically, but also symmetrically.
  • the anchoring bolt 22 must either be subsequently inserted from the side or the entire component 18 are laterally threaded onto the anchoring bolt 22.
  • the connecting element 10 is also arranged in the region of the underside of the beam for the reasons mentioned above, but somewhat spaced from this. This arrangement is particularly preferred when increased demands are placed on the corrosion and / or fire protection of the precast concrete beam 18.
  • the beam can be secured by the closed cross section of the hollow section 12 against lifting more effective.
  • Fig. 13 is a lower corner of a precast concrete 18, such as the one out Fig. 1 shown in the one Mounting cavity 30 is provided to tighten a fastening nut 24 of a connecting element 10 in the precast concrete element 18 can.
  • the mounting cavity is an approximately rectangular recess with a rectangular front opening. This opening is to be poured after tightening the mounting nut 24 with concrete to form a total, together with the remaining surface of the precast concrete 18, a continuous smooth concrete surface.
  • largely rectangular and slightly larger than the opening of the cavity 30 shaped cover 38 is provided. This is mounted substantially in the direction of the arrows A at the opening of the mounting cavity 30 such that it is covered.
  • the attachment of the cover 38 by means of a fastening screw 40 which is inserted through an opening 42 in the cover 38 and is screwed into a thread 44 which is formed in the case shown in the anchor plate 28 of the connecting element 10.
  • the position of the opening 42 is matched to that of the thread 44.
  • the cover 38 is reliably attached to the precast concrete part, and also the pressure of the filled concrete can not solve this from the precast concrete part.
  • the cover 38 is fixed by means of wire pins on the precast concrete part, in particular nailed.
  • respective openings may be provided to nails wire pins through the openings in the concrete surface of the precast concrete part 18 in the vicinity of the cavity 30.
  • the cover 38 could its surface directed towards the precast concrete element 18, in particular in its edge regions, be provided with double adhesive strips in order to fasten the cover 38 to the edge regions in the vicinity of the mounting cavity 30.
  • the cover 38 In order to facilitate the filling of Vergussbetons compared to the known in the prior art approach considerably, the cover 38 according to the invention at the top of a defined filling opening 48. This is combined in the embodiment shown with a Einphilllülle 50, which has substantially the shape of a halved funnel. By filling spout 50 remains in the state in which the cover 38 is attached to the precast concrete 18, between the concrete surface and the edge of the Ein colllülle 50, the filling opening 48 through which the grouting concrete can be filled safely and in a reproducible manner.
  • the cover 38 may be made of sheet metal, a solid plastic or any other suitable material.
  • the attachment of the cover 38 is such that it is removable from the cavity filled with concrete even after its hardening (see, in particular Fig. 13, 14th . 16 and 17 ).
  • Fig. 14 an alternative possibility of attaching the cover 38 according to the invention to a precast concrete element 18, in particular its connecting element 10 is shown.
  • the connecting element 10 has a plurality of reinforcing bars 14, which in the embodiment shown are mounted in the four corners of the connecting element 10.
  • a nut 54 is welded to allow in each case the insertion of a sufficiently long screw 40.
  • only one of the nuts 54 may be provided, and the existing nuts may be at other portions of the Fastener or the precast concrete 18 and be attached by other measures than welding.
  • Fig. 15 an embodiment of the cover according to the invention is shown, which is held by a plurality of resilient brackets 56 in the mounting cavity.
  • the brackets 56 may be integrally provided on the cover plate 38 made of metal or plastic.
  • the brackets initially extend from the cover 38, starting a little outside of the edge and then, after forming a kink, to a certain extent roof-shaped again in the direction of the cover. This angled to the inside of the cover 38 section facilitates the introduction of the entire circumference formed brackets in the mounting cavity 30.
  • the brackets 56 are slightly deflected during insertion and then resiliently against the inner surface of the mounting cavity 30, so that also in this embodiment the cover 38 is securely held in the mounting cavity.
  • a cable tie 58 is used to tighten the cover 38 in the mounting cavity 30.
  • the cable tie is looped around an anchoring pin 22 of the connecting element 10, and its ends are guided by an opening 42 formed in the cover 38 to the outside.
  • a suitable latching fastener 62 By a suitable latching fastener 62, the cable tie can be tightened so that the cover 38; held by the anchoring pin 22 and the cable tie 58, securely remains on the mounting cavity.
  • a metal strip 64 is advantageous is clamped by means of the fastening nut 24 of the connecting element 10 and extends through an opening 42 formed in the slot 38 in this case.
  • the cover is arranged in the direction of the arrows A, guided by the metal strip 64, on the mounting cavity 30. Subsequently, as indicated in the figure, the protruding to the outside end of the metal strip, for example, angled downwards to hold the cover 38 securely to the mounting cavity.
  • the connecting element 10 is concreted in the region of the abutting surface of the precast concrete part 18 in such a way that in the region of the connecting element, a mounting cavity 30 remains, which is formed for example by a removable Styrofoam Aussparungsisson.
  • the precast concrete element 18 is placed with its abutment surface on the building section 20, which may be a foundation or a ceiling slab.
  • the connecting element 10 in the horizontal position for connecting beams, the procedure is analogous, but the arrangement in the concrete beam 18 according to Fig. 11 and 12 performed.
  • the building section 20 may then constitute a wall or a column.
  • the anchoring pin 22 is correspondingly arranged horizontally.
  • the application is particularly advantageous Fig. 11 where, during the assembly of the beam, this is lowered from top to bottom and thus the anchoring bolt 22 is not introduced axially, but perpendicular to the longitudinal axis in the U-profile 12.
  • an anchoring bolt 22 is provided, on which the precast concrete part 18 is placed in such a way that it in the connecting element 10, more precisely in its hollow section 12, in Connecting direction extends. Thereafter, an anchor plate 28 is placed on the anchoring pin 22 such that it bears against the hollow profile 12.
  • a nut 24, possibly with washer 26, on the anchoring pin 22 this is clamped with hollow section 12 and the precast concrete part 18 and the building section 20 in the axial direction of the anchoring bolt.
  • the tightening of the nut on the mounting cavity 30 can be done from the outside by means of a conventional tool.
  • a cover 30 is fitted flush to the surface of the precast concrete member 18 so as to cover the mounting cavity 30.
  • the covers can be held in different ways to the precast concrete part, for example by means of screws 40 which engage a welded to reinforcing bars 14 of the connecting element 10 nuts 54.
  • the cover 38 has a Einglallülle 50, through which the concrete is introduced clean so that the interior of the hollow section 12 and the mounting cavity 30 are completely filled.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (20)

  1. Elément de raccordement à un ouvrage porteur (10), susceptible d'être coulé dans une pièce en béton préfabriqué (18) et convenant pour raccorder la pièce en béton préfabriqué (18) à un tronçon de bâtiment (20) dans une direction de raccordement dans laquelle des efforts de traction et, perpendiculaire à laquelle, des efforts transversaux sont susceptibles d'être transmis, avec au moins un élément (12), s'étendant notablement dans la direction de raccordement et définissant un espace s'étendant dans la direction de raccordement, ouvert dans la direction de raccordement, ouvert latéralement ou fermé, et au moyen duquel le raccordement est réalisé directement, et sur lequel au moins un fer à béton (14) est monté rigidement, en particulier rapporté par soudage.
  2. Elément de raccordement selon la revendication 1, caractérisé en ce que l'élément s'étendant dans la direction de raccordement est formé par un profilé creux (12), auquel le ou les fers à béton (14) est/sont relié(s).
  3. Elément de raccordement selon la revendication 2, caractérisé en ce que le profilé creux (12) présente une section notablement rectangulaire, à tous les quatre coins étant prévus des fers à béton (14), groupés le cas échéant pour former deux étriers en forme de U.
  4. Elément de raccordement selon la revendication 1,
    caractérisé en ce que l'élément (12') s'étendant dans la direction de raccordement présente une section transversale sensiblement en forme de U.
  5. Elément de raccordement selon la revendication 1, caractérisé en ce que l'élément s'étendant dans la direction de raccordement est formé par deux éléments individuels (12") ayant chacun une section transversale en forme de L, reliés de préférence pour composer un profilé creux rectangulaire, des fers à béton (14) étant de préférence disposés dans la zone de la liaison.
  6. Elément de raccordement selon l'une des revendications 1 à 5, caractérisé en ce que le ou les fers à béton (14) sont disposés symétriquement par rapport à au moins un axe, en particulier les axes principaux de l'élément (12 ; 12' ; 12") s'étendant dans la direction de raccordement.
  7. Elément de raccordement selon l'une des revendications 1 à 5, caractérisé en ce que le ou les fers à béton (14) sont disposés de façon décalée vers l'intérieur, par rapport à la périphérie extérieure de l'élément s'étendant dans la direction de raccordement.
  8. Elément de raccordement selon au moins l'une des revendications précédentes, en combinaison avec un boulon d'ancrage (22) et une plaque d'ancrage (28), reposant directement sur l'élément (12 ; 12' ; 12") s'étendant dans la direction longitudinale.
  9. Combinaison de plusieurs éléments de raccordement selon l'une des revendications 1 à 7 ou de plusieurs combinaisons selon la revendication 8, relié(e)s ensemble au moyen d'un ou de plusieurs étriers en fer à béton (34), montés rigidement, en particulier rapportés par soudage, sur les éléments (12 ; 12' ; 12") s'étendant dans la direction longitudinale.
  10. Combinaison selon la revendication 9, caractérisée en ce que les éléments (12 ; 12' ; 12") s'étendant dans la direction longitudinale sont entourés par les étriers en fer à béton (34).
  11. Pièce en béton préfabriqué (18), en particulier composant de soutien, de mur ou paroi, de plafond ou d'assemblage, avec au moins un élément de raccordement (10) selon l'une des revendications 1 à 7 ou avec au moins une combinaison selon l'une des revendications 8 à 10.
  12. Pièce en béton préfabriqué (18) selon la revendication 11, caractérisée en ce que l'espace défini par l'élément (12 ; 12' ; 12") s'étendant dans la direction de raccordement et/ou un espace creux de montage (30), prévu dans l'environnement de l'élément de raccordement (10), est/sont coulé(s) en béton.
  13. Elément de raccordement selon l'une des revendications 1 à 7, ou combinaison selon l'une des revendications 8 à 12, en combinaison avec un couvercle (38), présentant une ouverture de remplissage (50) pour introduire du béton et susceptible d'être fixé sur l'élément de raccordement (10), de manière qu'un espace creux (30), couvert de ce fait, puisse être coulé en béton.
  14. Combinaison selon la revendication 13, caractérisée en ce que l'ouverture de remplissage (50) est configurée sous forme de bec de remplissage ou de bouchon verseur de remplissage.
  15. Combinaison selon la revendication 13 ou 14, caractérisée en ce que le couvercle (38) présente au moins une bande adhésive ou une patte (56) élastique.
  16. Combinaison selon la revendication 13 ou 14, en combinaison avec au moins un élément (58 ; 64), se présentant sous forme de ruban ou de bande, tel que, par exemple, une ligature de câbles (58), un fil ou une bande en tôle (64), pour fixation du couvercle (38) à l'élément de raccordement.
  17. Procédé de raccordement d'une pièce en béton préfabriqué (18) à un tronçon de bâtiment (20), présentant les étapes suivantes :
    - coulée d'un élément de raccordement à un ouvrage porteur (10) dans la zone de la surface de joint d'une pièce en béton préfabriqué (18) ;
    - pose de la pièce en béton préfabriqué avec sa surface de joint sur le tronçon de bâtiment (20), de manière qu'un boulon d'ancrage (22), prévu dans le tronçon de bâtiment, soit susceptible d'être agencé de manière à s'étendre dans un élément (12 ; 12' ; 12"), s'étendant dans la direction de raccordement, de l'élément de raccordement (10), également dans la direction de raccordement ;
    - serrage du boulon d'ancrage (22), avec l'élément (12 ; 12' ; 12") s'étendant dans la direction longitudinale et le tronçon de bâtiment (20), dans la direction axiale du boulon d'ancrage, en utilisant une plaque d'ancrage (28)
    - blocage du boulon d'ancrage (22), perpendiculairement à son axe par rapport à l'élément (12 ; 12' ; 12"), s'étendant dans la direction de raccordement
  18. Procédé selon la revendication 17, le blocage du boulon d'ancrage (22) s'effectuant par remplissage en béton d'un espace creux, défini dans la pièce en béton préfabriqué (18) par l'élément (12 ; 12' ; 12") s'étendant dans la direction de raccordement et/ou d'un espace creux de montage (30), prévu dans l'environnement de l'élément de raccordement.
  19. Procédé selon la revendication 17, le blocage du boulon d'ancrage s'effectuant au moyen d'éléments de maintien, de préférence de coins ou clavettes et/ou de vis de réglage.
  20. Procédé selon la revendication 17, la pose de la pièce en béton préfabriqué, réalisée en particulier du genre reliant, s'effectue principalement dans une direction perpendiculaire à l'axe longitudinale de la pièce en béton préfabriqué.
EP02748706A 2001-05-17 2002-05-16 Element de raccordement et procede de raccordement d'un composant en beton prefabrique a une partie d'un immeuble Expired - Lifetime EP1387910B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE20108341U 2001-05-17
DE20108339U 2001-05-17
DE20108339U DE20108339U1 (de) 2001-05-17 2001-05-17 Verbindungselement und Betonfertigteil mit einem Verbindungselement
DE20108341U DE20108341U1 (de) 2001-05-17 2001-05-17 Abdeckung
PCT/EP2002/005430 WO2003006758A1 (fr) 2001-05-17 2002-05-16 Element de raccordement et procede de raccordement d'un composant en beton prefabrique a une partie d'un immeuble

Publications (2)

Publication Number Publication Date
EP1387910A1 EP1387910A1 (fr) 2004-02-11
EP1387910B1 true EP1387910B1 (fr) 2009-01-14

Family

ID=26056996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02748706A Expired - Lifetime EP1387910B1 (fr) 2001-05-17 2002-05-16 Element de raccordement et procede de raccordement d'un composant en beton prefabrique a une partie d'un immeuble

Country Status (7)

Country Link
EP (1) EP1387910B1 (fr)
AT (1) ATE421006T1 (fr)
DE (1) DE50213219D1 (fr)
DK (1) DK1387910T3 (fr)
ES (1) ES2318026T3 (fr)
PL (1) PL209884B1 (fr)
WO (1) WO2003006758A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20051070A1 (it) * 2005-06-10 2006-12-11 D L C S R L "muri realizzati con elementi prefabbricati a fori verticali"
GB2442061B (en) * 2006-09-19 2011-03-02 Waycon Precast Ltd Precast concrete panels
IT1395506B1 (it) * 2009-07-24 2012-09-28 B B Bonelli Building S R L Elemento di parete prefabbricato
IT1400605B1 (it) * 2010-06-17 2013-06-14 Rappo Dispositivo di giunzione tra pannelli armati per l'edilizia, e tra pannelli e fondazioni o solai, e struttura di pannello prefabbricato armato preposto all'impiego con tale dispositivo.
AT522359B1 (de) * 2019-03-25 2021-04-15 Progress Holding Ag Verbindungsvorrichtung zum kraftschlüssigen Verbinden wenigstens zweier Betonfertigteile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2280080A (en) * 1939-11-13 1942-04-21 Nicholas A Predan Concrete insert
DE1658947A1 (de) * 1967-04-14 1970-12-03 Guy Peeters Verfahren und Elemente zum Erstellen von vorfabrizierten Gebilden
AT374531B (de) 1981-05-21 1984-05-10 Koss Kurt Vorrichtung zur zugfesten verbindung zweier bauteile
FR2682141B1 (fr) * 1991-10-04 1998-10-02 Sogea Procede pour realiser un joint de construction entre deux elements prefabriques d'un ouvrage, joint de construction s'y rapportant et ouvrage comportant un tel joint.
US5625993A (en) * 1995-01-06 1997-05-06 The Burke Group Concrete structure having load transferring insert and method for making same
US6058672A (en) * 1998-06-03 2000-05-09 Mcclellan; Robert B. Construction of wall panel and panel structure
DE20108341U1 (de) 2001-05-17 2001-08-02 Pfeifer Seil Hebetech Abdeckung

Also Published As

Publication number Publication date
PL209884B1 (pl) 2011-11-30
WO2003006758A1 (fr) 2003-01-23
ES2318026T3 (es) 2009-05-01
DK1387910T3 (da) 2009-04-14
DE50213219D1 (de) 2009-03-05
PL366895A1 (en) 2005-02-07
EP1387910A1 (fr) 2004-02-11
ATE421006T1 (de) 2009-01-15

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