EP0826848B1 - Dispositif pour l'introduction concentrée d'efforts dans le béton - Google Patents

Dispositif pour l'introduction concentrée d'efforts dans le béton Download PDF

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Publication number
EP0826848B1
EP0826848B1 EP97114472A EP97114472A EP0826848B1 EP 0826848 B1 EP0826848 B1 EP 0826848B1 EP 97114472 A EP97114472 A EP 97114472A EP 97114472 A EP97114472 A EP 97114472A EP 0826848 B1 EP0826848 B1 EP 0826848B1
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EP
European Patent Office
Prior art keywords
concrete
forces
previous
filled
construction
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
EP97114472A
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German (de)
English (en)
Other versions
EP0826848A3 (fr
EP0826848A2 (fr
Inventor
Richard Prof. Dr.-Ing. Rojek
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.)
ROJEK, RICHARD, PROF. DR.-ING. EN EISENHOFER, ANDR
Original Assignee
Eisenhofer Andre Dipl-Ing
Schaffer Wolfgang Dipl-Ing
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Publication date
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Application filed by Eisenhofer Andre Dipl-Ing, Schaffer Wolfgang Dipl-Ing filed Critical Eisenhofer Andre Dipl-Ing
Publication of EP0826848A2 publication Critical patent/EP0826848A2/fr
Publication of EP0826848A3 publication Critical patent/EP0826848A3/fr
Application granted granted Critical
Publication of EP0826848B1 publication Critical patent/EP0826848B1/fr
Anticipated expiration legal-status Critical
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups

Definitions

  • the invention relates to components with anchoring devices by open Niches with the concrete is toothed, whereby Glas- or Compressive forces and, if necessary, lateral forces are concentrated in steel and prestressed concrete structures can be initiated.
  • the elements can be used for this purpose with conventional reinforcements or the most diverse special elements be connected or can also be part of a rigid special construction be, since they - in contrast to rod-shaped elements with circular Cross-section - also good for transfer due to its rectangular cross-sectional shape of bending moments and shear forces are suitable.
  • the anchoring effect of the construction according to the invention can be significantly enhanced be formed by the edges of the recesses with Aufkantungen become. This creates additional contact surfaces compared to planar anchor elements for transferring compressive forces into the concrete.
  • the anchor element is combined with a reinforcing bar, it can vary depending on the selected Assignment between rebar and anchor element during power transmission From the rod to anchor an offset moment arise. Due to the bending stiffness of the armature, it is possible for this offset moment by a couple of forces, the introduces the anchor element into the concrete, keeping it in balance.
  • the anchor elements according to the invention can except with reinforcing bars also be combined with all conceivable surface or rod-shaped construction parts.
  • rigid constructions can be in addition to normal forces and shear forces over the recesses and / or recesses as support forces in the concrete be directed.
  • the device according to the invention is an anchor element, which is the introduction of force From tensile or compressive bars in the concrete with comparatively allows very short lengths and thus constructive for many applications and offers economic benefits.
  • Essential is the possible utilization comparatively high concrete compressive stresses.
  • the anchor elements are in usually equally well suited for the introduction of tensile or compressive forces. By the Full-surface embedding of the elements in the concrete can occur under compressive stress no stability problems arise.
  • Figures 1 to 3 show a solution in which two reinforcing bars 1 with a common perforated plate anchors 2 are welded.
  • the anchor element takes over the tensile or compressive force of the two rods and passes them essentially over the Face 3 or 3 a and the Lochleibungs vom the in this example circular recesses 4 each as compressive force in the concrete.
  • FIG. 4 shows an anchor element with internal, continuous recess 5, the figure 5 with such inside, one-sided recess 6, the figure 6 another with internal, two-sided recesses 7 and Figure 7 an anchor element with the margins arranged recesses 8.
  • FIG. 8 shows a longitudinal section of an anchoring device according to the invention, in which the edges of the recesses 9 are provided with upstands 10 are. These shapes can be made by casting or pressing or by in the recesses annular, small pipe sections welded become. Opposite anchoring elements with even surfaces This creates more pressure contact surfaces to the concrete, causing the anchoring effect the elements is significantly increased.
  • Figures 9 to 11 show a variant in which a reinforcing rod 11 on one side is welded to an anchor element 12.
  • the anchor element transmits the train or Compressive force substantially over the end face 13 and 13 a and above all over the Lochleibungs vom the in this example semicircular recesses 14 at the edges in the concrete.
  • FIG. 12 shows with the plan view of a further variant that it for the planform or the cross section of the device according to the invention a great variety of design options.
  • the anchor element 15 for example, a trapezoidal plan as well as recesses 16 and 17 in the interior and on the edges. In particular, at the edges also offer triangular Recesses on.
  • FIG. 12 shows the arrangement for a tie-down anchor, Figure 13, however, the arrangement for a pressure anchorage.
  • FIG. 14 shows a variant in which first the basic forms of FIGS. 1 and 9 were combined so that recesses 18 and 19 in the interior and at the edges available.
  • This approximately sinusoidal shape first has the advantage that both in the anchoring element as well as in the concrete Notch effects are avoided. This will increase the carrying capacity of the anchor elements not only for static load, but also for dynamic influences increased.
  • FIG. 14 Another essential advantage of the shaping according to FIG. 14 is that shown in FIG 15 shown sectional view: It can be chosen so low, that when cutting the anchor elements only for the inner recesses 18 Material waste is created.
  • FIG. 16 shows one of numerous possible application examples rigid carrier 21 with z. B. rectangular cross section, the loads of the left Concrete member 22 via the expansion joint 23 to the right concrete part 24 transmitted got to. In order not to disturb the function of the expansion joint, it is within the left Concrete part mounted longitudinally displaceable in a sleeve 25. As a result of the power transmission the carrier receives a bending stress, each by a vertical Force pair is kept in balance. Due to the rectangular cross-sectional shape can transmit significantly larger forces at the same cost of materials be considered with a circular cross-section. Immediately to the right of the fugue arise downwardly directed support forces, at the right end of the carrier are the Forces directed upwards. In both places, the forces except the Surfaces additionally with the help of the rectangular recesses in this example 26 led into the concrete. The support length can thereby in the concreted part opposite a full-surface rod with the same carrying capacity chosen significantly shorter become.
  • the illustrated carrier 21 may consist of a single element, of pairs or Also consist of several elements arranged one behind the other. If this with Intermediate gaps can be arranged, the power transmission surfaces between the girders and the concrete with comparatively high compressive stresses be charged.
  • Figure 17 shows a supporting structure, which the loads and for the balance necessary Kragmoment a left illustrated reinforced concrete collar plate 27 on the thermally insulated joint 28 into the subsequent reinforced concrete structure 29 passes.
  • the anchoring device can - As shown here - horizontally lying, or arranged vertically standing become.
  • the tensile forces turn anchored in the concrete with an anchor element 30 according to the invention.
  • the concrete is conventionally provided with reinforcement 32, with which the anchor element 30 may be welded.
  • the rods 31 can connected via diagonal bars with a designated as a whole with 45 device be, which are arranged more deeply and for the reception and transmission of the occurring Bending pressure forces and shear forces is set up.
  • a device according to the invention is shown, the loads the reinforced concrete element 34 receives and a bearing plate 35 on a support structure 36 delivers.
  • the resulting offset torque is determined by a horizontal Paired forces, with which the angular, d. H. two-legged support 33 against the structure 34.
  • Support member 21 may also be the support member 33 of a single element, from consist of pairs or even several consecutively arranged elements.
  • the serially arranged individual elements can with an intermediate element 37 so be connected to each other, that this intermediate element as a transport anchor can be used. This eliminates the case in which the reinforced concrete element 34 is prefabricated, additional lifting anchor.
  • the support element 33 according to the invention can u. a. be varied in the way that the load-receiving part of the construction shown perpendicularly in Figure 18 also can be arranged inclined. This can u. U. a more favorable state of tension be achieved in the concrete.
  • the support element 33 according to the invention can - if adapted accordingly Shaping - for the storage of various reinforced concrete components such as Plates, stairs, beams, discs u. ⁇ . Be used. Thereby can especially in the production of such parts in precast construction economical Storage and installation conditions can be achieved. If necessary - z. B. in the Storage of stairs or stair landing on the subsequent components - can the support structure according to the invention combined with sound-absorbing bearings become.
  • FIGs 19 and 20 is a steel anchor plate 38 in the side and in the Rear view shown.
  • Such anchor plates are used to z. B. steel structures how to attach suspended canopies to reinforced concrete structures.
  • the loads on the anchoring elements according to the invention 39 led into the concrete.
  • the vertical load components can be considered as lateral forces favorably received both by the pressure and the Glasanank ceremonies and to get redirected.
  • Figures 21 and 22 show in a side view and in cross section, as the Anchoring devices according to the invention as a particularly advantageous composite can be used for the production of steel composite structures.
  • the concrete structure 40 relative to the steel beam 41 in the common contact joint 42 can not move.
  • suitable Composite means horizontal in Figure 21 extending in the image plane shear forces be transmitted as possible slip.
  • the anchor elements according to the invention 43 offer ideal conditions for this: they can use these forces over their large contact surfaces to the concrete absorb well and because of their great flexural rigidity actually slip without slip to the steel girder, where they use these forces z. B. via welds.
  • the composite element of EP 0 215 148 A is rod-shaped and we continuously with welded to a steel girder. Due to the rod shape, on the one hand, the per unit length strong forces are limited; on the other hand, the composite element as a result of the continuous welding connection is not bent be claimed. As a result, the composite forces can not arbitrarily far, but only be led into the edge area of the concrete slab. In addition, are the continuous welds comparatively costly.
  • fastening aids eg as an injection-molded part Plastic
  • FIG. 1 An example of such a fastening aid 44 shown in FIG.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Claims (10)

  1. Dispositif pour l'introduction concentrée de forces au béton, avec un dispositif d'ancrage qui peut être endenté avec le béton, comprend au moins une zone à niche (4, 5, 6, 7, 8, 9, 14, 16, 17, 18, 19, 26) ouverte d'un côté au moins qui peut être remplie de béton, la limitation de bord de cette zone à niche présentant - au moins dans la zone arrière vue dans la direction de force - une surface intrados s'étendant au moins en partie transversalement à la direction de force, caractérisé par le fait que le dispositif présente des dimensions en forme de plaque avec une section résistante à la flexion.
  2. Dispositif selon la revendication 1, caractérisé par le fait que le dispositif d'ancrage présente au moins un élément d'ancrage (2, 12, 15, 20, 30, 39, 43) de préférence en forme de plaque qui est fixé sur un élément de construction de bâtiment (1, 11, 31, 38, 41) lequel peut être sollicité par les forces à appliquer et ponte, de préférence, un joint (28), ledit élément d'ancrage présentant au moins une zone à niche qui peut être remplie de béton.
  3. Dispositif selon l'une des revendications précédentes, caractérisé par une zone à niche (26) qui est formée sur un élément de construction de bâtiment (21, 23) qui peut être sollicité par les forces à transmettre et ponte, de préférence, un joint (23), ladite zone à niche pouvant être remplie de béton.
  4. Dispositif selon l'une des revendications précédentes, caractérisé par le fait qu'une zone à niche au moins qui peut être remplie de béton est réalisée comme trou de passage (5, 9, 16, 18) ou comme trou borgne (6, 7, 26) ou en tant que profilage de bord (8, 14, 17, 19).
  5. Dispositif selon la revendication 4, caractérisé par le fait que le profilage de bord (19) présente une allure ondulée d'une manière à peu près sinusoïdale.
  6. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que, dans la zone d'au moins une zone à niche (9) qui peut être remplie de béton, on prévoit une partie en saillie (10) de préférence sous forme d'une boíte insérée ou formée.
  7. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que du moins un élément de construction pourvu de zones à niche formées qui peuvent être remplies de béton est réalisé comme élément porteur (33) à deux branches dont la branche faisant saillie de la branche qui comprend les zones à niche et qui est ancrée dans une partie de bâtiment (34) peut être appuyée sur une surface d'appui, de préférence sur une plaque d'appui (35) de la partie de bâtiment (36) respectivement voisine.
  8. Dispositif selon la revendication 7, caractérisé par le fait que l'élément porteur (33) peut être positionné de préférence sur le coffrage de béton au moyen d'un élément auxiliaire (44) réalisé en tant que pièce moulée par injection se composant de matière plastique.
  9. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que l'on prévoit au moins une poutre (21) en forme de plaque, traversant un joint (23) entre deux parties de béton (22, 24), qui est ancré dans l'une (24) des parties de béton par le biais de zones à niche formées (26) et qui est logé à déplacement dans une boíte (25) disposée dans l'autre partie de construction (22).
  10. Dispositif selon l'une des revendications précédentes, caractérisé par le fait que du moins un élément de construction pourvu de zones à niche formées qui peuvent être remplies de béton est réalisé comme élément d'assemblage (39, 43) qui fait saillie du côté de la partie d'acier (38, 41), qui montre vers la surface de contact entre une partie d'acier (38, 41) et le béton (42).
EP97114472A 1996-08-29 1997-08-21 Dispositif pour l'introduction concentrée d'efforts dans le béton Expired - Lifetime EP0826848B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29615019U 1996-08-29
DE29615019U DE29615019U1 (de) 1996-08-29 1996-08-29 Vorrichtung zur konzentrierten Krafteinleitung in Beton

Publications (3)

Publication Number Publication Date
EP0826848A2 EP0826848A2 (fr) 1998-03-04
EP0826848A3 EP0826848A3 (fr) 1999-04-21
EP0826848B1 true EP0826848B1 (fr) 2005-04-27

Family

ID=8028502

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Application Number Title Priority Date Filing Date
EP97114472A Expired - Lifetime EP0826848B1 (fr) 1996-08-29 1997-08-21 Dispositif pour l'introduction concentrée d'efforts dans le béton

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EP (1) EP0826848B1 (fr)
AT (1) ATE294299T1 (fr)
DE (2) DE29615019U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE221598T1 (de) * 1998-05-19 2002-08-15 Maurer Friedrich Soehne Verankerungsvorrichtung
DE102004019005A1 (de) * 2004-04-20 2005-11-10 Viet Tue, Nguyen, Prof. Dr.-Ing.habil Ein duktiles Verbundmittel für den Einsatz in Hoch- und Ultrahochleistungsbeton

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR765943A (fr) * 1933-03-14 1934-06-18 Perfectionnements aux armatures pour poutres en béton armé
DE825002C (de) * 1948-10-02 1952-01-07 Karl Kolster Metalleinlage fuer Leichtbaukoerper
FR1164683A (fr) * 1957-01-09 1958-10-13 éléments de plancher autoporteur et poutrelle constituée de ces éléments
US3221458A (en) * 1962-06-11 1965-12-07 A A Wire Products Co Shear transfer tie
FR1509977A (fr) * 1966-10-26 1968-01-19 Système d'armature d'élément de construction
DE3422905A1 (de) * 1984-06-20 1986-01-02 Hansjörg Dipl.-Ing. 7542 Schömberg Braun Vorrichtung zum verbinden einer balkonplatte und einer geschossdecke
ATE59685T1 (de) * 1985-09-17 1991-01-15 Wolfhart Andrae Verbundmittel fuer stahlbeton-verbundtragwerke.
DE3700295C2 (de) * 1987-01-07 1993-11-11 Schoeck Bauteile Gmbh Bauelement zur Isolierung bei Gebäuden

Also Published As

Publication number Publication date
DE59710948D1 (de) 2003-12-11
DE29615019U1 (de) 1996-12-05
EP0826848A3 (fr) 1999-04-21
ATE294299T1 (de) 2005-05-15
EP0826848A2 (fr) 1998-03-04

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