EP0563006B1 - Elément de répartition des efforts pour un ancrage - Google Patents

Elément de répartition des efforts pour un ancrage Download PDF

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Publication number
EP0563006B1
EP0563006B1 EP19930810106 EP93810106A EP0563006B1 EP 0563006 B1 EP0563006 B1 EP 0563006B1 EP 19930810106 EP19930810106 EP 19930810106 EP 93810106 A EP93810106 A EP 93810106A EP 0563006 B1 EP0563006 B1 EP 0563006B1
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EP
European Patent Office
Prior art keywords
partial
partial body
body according
plastic part
essentially
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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
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EP19930810106
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German (de)
English (en)
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EP0563006A1 (fr
Inventor
David Rogowsky
Erwin Siegfried
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VSL International Ltd
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VSL International Ltd
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Publication of EP0563006A1 publication Critical patent/EP0563006A1/fr
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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

Definitions

  • the present invention relates to a power transmission body for anchoring according to the preamble of claim 1.
  • the dimensioning of the force application zone in the case of anchoring for example a tension anchoring in a structural part made of concrete, is of particular importance.
  • a prestressing cable which can comprise one or more individual links
  • the prestressing forces present in the prestressed state are concentratedly transmitted to the structural part by means of at least one prestressing anchor after the prestressing of the prestressing cable has been applied after the concrete of the structural part has hardened.
  • the tensioning cable can run outside the structural part to be prestressed or can be arranged within this part. In the latter case, a subsequent connection of the tensioning cable to the prestressed structural part can also be provided.
  • the tension anchor usually, one end of the tensioning cable, the individual link or links of which consists of wires, strands, rods of steel or the like, is held in the tension anchor.
  • this includes an anchor plate made of steel, which rests on or is embedded in the prestressed part of the building, and an anchor sleeve, also made of steel, with conical bores for receiving clamping wedges through which the former and the latter the prestressed individual links of the tensioning cable are passed.
  • the anchor plate After the tensioning process, the anchor plate has to transfer the prestressing forces into the building part.
  • the anchor plate which is normally square, must be dimensioned such that a deflection of the Anchor plate is limited so that an almost uniform power transmission to the building part is guaranteed. In order to meet this requirement, the previous anchor plates have been made with a large thickness and a correspondingly large weight.
  • Cast anchor bodies are often used to replace the above-mentioned anchor plates. Like a trumpet, these form the transition from the fanned-out individual members held in the anchor sleeve to the combined individual members running in a cladding tube. They have at least one circumferential bead which extends radially outwards and serves to transmit tensioning forces to the structural part in addition to a front force transmission surface. As a result of this design, the cast anchor body is lighter than the aforementioned anchor plate made of steel.
  • anchor bells have also been proposed to save weight. These include a hollow cylindrical steel body that is concreted into the part of the building to be prestressed. During the concreting process, a niche is placed concentrically within the anchor bell, which has been introduced into the formwork, for later accommodation of a so-called anchor plate, which fulfills the function of the aforementioned anchor sleeve. recessed.
  • a so-called anchor spiral is provided around the anchor bell as additional reinforcement for absorbing expansion forces that arise with all anchorings when force is introduced into the structural part.
  • the anchoring mentioned here requires the same concrete as the building part to be created. The desired, but hardly controllable, void-free introduction of this concrete during the concreting of the structural part into the cavity of the anchor bell poses considerable problems.
  • the one arranged around the anchor bell Anchor spiral, together with the other reinforcement parts, makes this insertion even more difficult. This does not guarantee that the anchor plate or anchor sleeve does not penetrate the concrete during or after prestressing.
  • GB 1 103 345 discloses an anchoring body which is provided for concreting into a structural part. It comprises a metal ring with a contact surface for an anchor sleeve and a conical concrete body, which, embedded between an outer conical wire winding and an inner metal tube, connects to the side of the metal ring facing away from the contact surface.
  • the outer diameter of the anchoring body increases continuously starting from the metal ring. The largest diameter lies at the end of the anchoring body that is completely inside the building part.
  • the concrete body is harder than the concrete of the building part.
  • Such anchoring body is relatively heavy. It is disadvantageous that a large pressure peak occurs on the peripheral edge of the face of the concrete body facing away from the metal ring after the prestressing of the tensioning cable anchored to the anchoring body.
  • a secure, sufficiently firm support for the anchor sleeve should be guaranteed.
  • the power transmission body according to the invention should be designed such that the forces to be transmitted can be fully absorbed and introduced into the structural part during and after the prestressing. Improved force transmission is to be achieved.
  • the power transmission body according to the invention is designed as a so-called composite body. It consists of a first, preferably metallic, part body, which bears against a second part body made of a preferably non-metallic material.
  • the first part of the body is intended to absorb the clamping forces from the anchor sleeve and to transmit them to the second part of the body.
  • the second part of the body then transfers the tension forces absorbed into the part of the building.
  • the materials of the two partial bodies and the active surfaces on which the forces are transmitted are matched to one another.
  • the active area is to be understood as those parts of the outer surface of the second partial body which are penetrated by lines of force.
  • the constriction has the effect that the transmission of the tensioning forces into the building part does not have to take place solely over the smaller end face and that at least two peripheral circumferences on the second partial body within the building part there are axially spaced edges.
  • the pressure peaks mentioned in the introduction are divided and thus a more uniform introduction is achieved.
  • the bond with the concrete of the building part is improved.
  • Such a construction makes it possible to achieve a not insignificant reduction in weight and an improved introduction of force into the structural part compared to the known anchor plates, cast anchor bodies and anchoring bodies.
  • the shape of the power transmission body according to the invention can be chosen so that the difficulties listed in connection with the aforementioned anchor bell are largely excluded.
  • first active area for absorbing the clamping forces from the first partial body is smaller than a second active area for delivering the absorbed clamping forces to the concrete of the building part.
  • the first active surface essentially corresponds to the larger end surface facing the first partial body and the second active surface essentially to the sum of the other smaller end surface plus the circular ring surface.
  • the latter is advantageously relatively slightly inclined with respect to the longitudinal axis of the power transmission body.
  • the angle of inclination is at most 30 ° with respect to a plane at right angles to the longitudinal axis of the body.
  • the inclination is such that the outer circumferential line of the circular ring surface is spaced further apart from the smaller end surface in the axial direction of the body than the inner circumferential line.
  • a reduction in the specific pressure load on the concrete of the building part is achieved by the above-mentioned area enlargement for a given prestressing force.
  • the prefabricated first partial body is cast into the second partial body during manufacture thereof, or that the second partial body is cast onto the first partial body.
  • the outer surface of the second partial body can be provided with indents, ribs and / or beads so that a better bond is achieved with the prestressed concrete of the building part.
  • the second active area can be enlarged, as a result of which the specific compressive stress on the concrete of the structural part can be further reduced.
  • Axially extending ribs arranged in the region of the constriction serve the same purpose.
  • the strength of the mortar mass lies between the strength of the first part of the body and the strength of the concrete of the building part.
  • the strength of the mortar mass depends on the one hand on the selected shape of the second part body and on the other hand on how far the anchor sleeve extends radially over the contact surface of the first part body.
  • a mortar composition is preferably used which, when cured, has a strength of at least 60 N / mm 2 .
  • the pourable material is advantageously pourable when cold. In this case, smaller demands are placed on the molds. They are inexpensive to manufacture.
  • another material for example, an electrically insulating material can be used.
  • the second part body can additionally contain reinforcing elements in addition to a coordinated mortar mass and a suitable shape.
  • the first partial body has a substantially U-shaped cross section, the second partial body projecting into the circumferential groove formed by the two legs of the U and the base leg.
  • the contact surface is formed on the ring defined by the base leg of the U, facing away from the groove. So that the spreading forces that occur, which extend from the edge of the anchor sleeve into the building part at an angle of about 45 °, can be absorbed without the first partial body having to be made excessively large, it is advantageous if the through the outer leg of the U formed outer circumferential collar of the first part of the body is inclined outwards from the ring and includes an angle of 10 ° to 45 °, preferably 20 ° to 30 °, to the longitudinal axis of the force transmission body. So that the outer collar is not deformed when loaded with the prestressing forces, essentially radially extending webs can be provided which connect the outer with the inner circumferential collar formed by the inner leg of the U.
  • the inner lateral surface of the force transmission body is lined with an essentially funnel-shaped plastic part.
  • the plastic part at least overlaps with its end region facing the contact surface partially the inner collar of the first part of the body. It protrudes with its other end region from the force transmission body and has at this end means for connecting to another funnel-shaped or tubular plastic part.
  • the two plastic parts mentioned together form the trumpet.
  • the first-mentioned plastic part is provided with fixing means which are operatively connected to the second part body and prevent the material part from being axially displaced relative to the second or the first part body.
  • the power transmission body according to the invention can be cast in the factory or on the construction site.
  • FIG. 1 A longitudinal section through a first embodiment of a power transmission body 1 according to the invention, which is cast in a building part 9 made of concrete, is shown in FIG. 1.
  • the force transmission body consists of a first, essentially annular partial body 5 and a second partial body 6, which is connected to the first partial body 5.
  • the second sub-body 6 consists of a material, preferably a mortar, which is pourable and hardenable.
  • the first partial body 5 is advantageously made of a metal. Cast steel is preferred.
  • the annular first partial body has a substantially U-shaped cross section. The two legs of the U each form a circumferential inner collar 11 and a circumferential outer collar 12. The two collars face the second partial body 6.
  • a ring 13 preferably a circular ring
  • the annular surface facing away from the second partial body 6 is designed as a flat contact surface 2, against which an anchor sleeve marked with the reference number 4 abuts in a force-fitting manner.
  • the armature sleeve has one or more conical bores 39, in which or in each of which an individual member 3 of a tensioning cable is held in the tensioned state by means of clamping wedges 30.
  • Each of the adjacent inner surfaces of the inner collar 11, the outer collar 12 and the ring 13 circumscribe a circumferential groove into which the mortar mass of the second partial body 6 projects.
  • the outer collar 12 extends from Ring 13 extends outwards.
  • the angle to a longitudinal axis 15 of the force transmission body, which the outer collar includes, should be 10 ° to 45 °, preferably 20 ° to 30 °. This angle is shown in FIG. 2 with reference number 16. Because the area of the second partial body 6 facing the first partial body 5 is encompassed by the first partial body 5 according to the embodiment just described, the clamping and spreading forces can be optimally guided from the first partial body 5 into the second partial body 6.
  • the webs 14 are preferably arranged evenly distributed around the circumference.
  • the force transmission body 1 is usually constructed such that the mortar mass of the second part body 6 has a lower strength than the preferably metallic first part body 5. However, the strength of the mortar mass of the second part body 6 is higher than that of the concrete from the building part 9.
  • the second partial body 6, which in the exemplary embodiment shown is essentially a truncated cone-shaped rotating body, has a conical inner circumferential surface 8 which opens towards the first partial body 5.
  • the second partial body 6 has an outer surface 7, which is essentially divided into two end faces 7a, 7d and an outer lateral surface 7b, 7c.
  • the one larger end surface 7a, which faces the first part body 5, is understood to mean the entire surface of the second part body 6 which is in contact with this part body. It essentially comprises that part of the outer surface 7 of the second partial body 6 which projects into the groove of the first partial body 5.
  • the smaller end face 7d is the end face of the second partial body 6 facing away from the first partial body 5. It extends approximately at right angles to the longitudinal axis of the body.
  • the outer circumferential surface would be the circumferential surface of a truncated cone, which tapers from the first partial body 5 to the smaller end surface if the radially circumferential constriction 7b, 7c were not present.
  • This constriction essentially forms an annular surface 7b and a surface 7c of the stanchion.
  • the annular surface 7b, together with the smaller end surface 7d, is used to transmit the clamping forces from the second partial body 6 into the structural part 9.
  • the constricted lateral surface 7c adjoins the smaller end surface 7d and extends in the axial direction of the body towards the annular surface 7b. It connects the outer circumferential line of the smaller end face 7d with the inner circumferential line of the annular surface 7b.
  • the constriction surface 7c is conical, the cone narrowing starting from the smaller end surface 7d in the direction of the circular surface 7b in a preferred embodiment.
  • This measure increases the area active for the transmission of clamping forces, ie the sum of the smaller ones End face 7d and the annular surface 7b reached. This is not the case if the constricted lateral surface 7c would run parallel to the longitudinal axis of the body, or if the cone, as indicated by the dash-dotted line 7c, widens towards the circular surface 7b.
  • the reference numeral 28 denotes ribs which, in the region of the constriction, preferably extend uniformly around the circumference of the body in the axial direction of the latter. With these ribs 28, the active surface serving for the transmission of tensioning forces can be further enlarged by the end face portions designated 7e.
  • the inner lateral surface 8 of the second partial body 6 forms a conical opening 19, the larger diameter of which faces the contact surface 2.
  • the inner lateral surface 8 is lined with an essentially funnel-shaped plastic part 18, for example made of polyethylene.
  • the end region of the plastic part 18 facing the contact surface 2 overlaps the inner collar 11 of the first partial body 5 at least partially.
  • the end region of the plastic part 18 facing away from the contact surface 2 protrudes from the second part body 6 and has at its front end connection means 20 for connecting this named material part to a further funnel-shaped or tubular plastic part 21.
  • the connecting means 20 can comprise, for example, a circumferential collar which projects inwards at the plastic part end.
  • the further plastic part 21 preferably has, at the end to be held, an outwardly directed, circumferential collar, designated by 36.
  • the further plastic part 21 is inserted from the contact surface 2 into the conical opening 19 of the power transmission part until the two mentioned collars 20, 36 stand against each other. It is easily possible to design the mentioned collars 20, 36 of the two plastic parts 18, 21 as a mutual snap lock.
  • fixing means 24, 25 projecting outwards in the form of circumferential beads which protrude into the second partial body 6 are provided on the outer lateral surface of the funnel-shaped plastic part 18 .
  • a device in the form of a pipe socket 22 is provided for connecting a ventilation or injection hose 23.
  • the wall of the plastic part forming a ventilation and / or injection opening 33, is pierced within the pipe socket 22.
  • the strength of the second partial body 6 can be largely matched to the strength of the concrete of the structural part 9. This can be done on the one hand by an appropriate choice of material for the mortar mass and on the other hand can be done by providing reinforcing elements 10, for example fibrous reinforcing elements, within the second partial body 6.
  • the power transmission body according to the invention is advantageously produced in such a way that the prefabricated first partial body 5 is cast into the second partial body 6, or that the second Part body is cast onto the first part body.
  • the first partial body 5 and the funnel-shaped plastic part 18 can be used as formwork elements for a casting mold.
  • the first partial body 5, which may have a shoulder 41 on its inner collar, is placed on the correspondingly designed end of the funnel-shaped plastic part 18 prior to the casting process.
  • the size of the second part body 6 can also be adapted to the building part to be created.
  • the casting process can take place locally on the construction site. Transport costs can be saved.
  • the first partial body and appropriately designed pouring molds would be attached to the formwork of the structural part to be concreted. After concreting, the cavity between the molds, which are preferably made of plastic, would be injected with the mortar.
  • An anchor spiral 26, which surrounds the anchoring body 1 in the building part 9, can be arranged in a known manner. It is needless to mention that in the power transmission body according to the invention means are provided in the figures for fastening the body to formwork parts of the building part to be created.
  • FIG. 2 shows a longitudinal section through the force transmission body and FIG. 3 shows a plan view of the force transmission body from the side of the first partial body.
  • the outer circumferential collar 12 of the first partial body 5 extends outwards from the ring 13. This with an angle 16 to the longitudinal axis 15 of the power transmission body from 10 ° to 45 °, advantageously from 20 ° to 30 °.
  • the outer circumferential surface of the ribs 28 runs viewed from the contact surface 2, also inclined outwards.
  • the angle of inclination is designated by the reference number 17 and is, based on the longitudinal axis 15, 5 ° to 30 °, preferably 10 ° to 20 °.
  • the side faces of the indentations 27 formed between two ribs are provided with a relatively strong tightening of 5 ° to 20 °.
  • the annular surface 7b and the end face portions of the ribs 28 designated 7e are inclined in such a way that the lines of force of the force flow emerge from the second partial body approximately at right angles and can enter the structural part adjoining the end faces mentioned.
  • the corresponding angles of inclination 42, 43 are 5 ° to 20 ° in relation to a plane intended at right angles to the longitudinal axis.
  • the tightening of the inner lateral surface 8 of the second partial body 6 corresponds to the cone of the funnel-shaped plastic part 18 and has a tightening angle 35 of approximately 3 °.
  • the inner circumferential collar 11 of the first partial body 5 is also inclined to extend in accordance with the inner surface mentioned.
  • the tightening of the conical constriction surface 7c is approximately ⁇ 5 ° to ⁇ 20 ° with respect to the longitudinal axis 15 of the body.
  • the second partial body 6 has been designed in such a way that the mortar mass can be poured into the casting mold without any problems, without the risk of air pockets exists and in such a way that in the finished power transmission body inserted into the structural part to be concreted, hardly any air-enclosing cavities can arise during the concreting process.
  • FIG. 4 shows a detail of a longitudinal section of the power transmission body according to the invention according to FIG. 1 in a modified embodiment.
  • the funnel-shaped plastic part 18 overlaps the inner collar 11 of the first partial body 5 essentially completely.
  • the inner lateral surface 8 of the second partial body 6 forms, together with the inner lateral surface of the inner collar 11 of the first partial body 5, a continuously extending conical opening of the force transmission body.
  • the end of the plastic part 18 facing the contact surface 2 has a reduced wall thickness in an end region which is not greater than the height of the inner collar 11.
  • An annular insulation intermediate layer 37 is placed over it and has an L-shaped cross section. The leg thereof which does not overlap the plastic part 18 extends at the front end of the force transmission body at least over part of the contact surface 2.
  • the intermediate layer 37 which is arranged between the abutting surfaces of the anchor sleeve 4 and the first part body 5 of the anchoring body 1, permits an electrical connection Insulated application of the armature sleeve 4 to the first partial body 5 of the force transmission body 1.
  • Cevolit for example, can be used as the insulation material, which must have a very high strength be used.
  • FIG. 5 A second embodiment of a power transmission body according to the invention is shown in FIG. 5.
  • This power transmission body corresponds to a simple embodiment. It differs from that described above only in that there are no ribs extending in the axial direction in the region of the constriction 7b, 7c.
  • FIGS. 6, 7 and 8 Another embodiment of this embodiment is shown as a third embodiment of a power transmission body according to the invention in FIGS. 6, 7 and 8. This differs from the previously described designs in the shape of the second partial body 6 and the arrangement of the ventilation or injection hose 23.
  • the second part body 6 also made of a pourable and hardenable mortar, has the shape of a hollow body of revolution with respect to its longitudinal axis 15. As already described above, it is cast onto the first part body 5.
  • its outer lateral surface has a radially outwardly extending, circumferential bead 29 which is arranged in the region of the constriction surface 7c.
  • the bead forms a further annular surface on the side facing the small end face 7d, which is designated 7f. This annular surface is also inclined and extends approximately parallel to the annular surface 7b.
  • the inclinations of the circular ring surfaces mentioned and the smaller end surface are also selected here so that one is possible right-angled exit of the lines of force from the second partial body 6 and entry thereof into a part of the building can take place.
  • the shape is such that hardly any air pockets can occur both when the second partial body is cast and when the force transmission body that has been created is concreted in.
  • the bead 29 extends at most up to the largest diameter of the second partial body 6, which is predetermined by the larger end face 7a.
  • the diameter of the bead is preferably smaller than the largest diameter of the second partial body.
  • the first partial body 5 not only has a flange 31 with a through opening 32 for passing through or connecting a ventilation and / or injection hose 23, but also has an integrated hose guide channel 38 through which the ventilation or injection hose in the area of the first partial body 5 can be guided into the conical opening 19 of the power transmission body.
  • a vent or injection opening 33 is provided in the funnel-shaped plastic part 18 in the overlap area with the first partial body 5 at the corresponding point.
  • An example of the shape and arrangement of said flange 31 and hose guide channel 38 is shown in FIGS. 7 and 8.
  • the wall of the hose guide channel 38 can at the same time be a connecting element intended to reinforce the inner and outer collar 11, 12.
  • a modified shape is indicated by dash-dotted lines in the region of the constriction in FIG. 6.
  • the constriction surface 7c would taper conically against the larger end face without a bead 7a extend.

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Claims (15)

  1. Corps de transmission de charge (1) pour un ancrage, notamment pour un ancrage sous tension, prévu pour être bétonné dans une portion de construction (9) en béton, avec une surface d'appui (2) prévue pour l'adhérence d'une douille d'ancrage (4) contenant un élément de traction (3), le corps de transmission de charge comprenant au moins deux portions de corps, une première portion de corps (5) essentiellement en forme d'anneau sur laquelle la surface d'appui est prévue, et une deuxième portion de corps (6) disposée du côté opposé de la première portion de corps à celui comportant la face d'appui, la deuxième portion de corps ayant la forme d'un corps creux comportant une surface extérieure (7) et une surface d'enveloppe intérieure (8), la surface extérieure étant séparée en deux parois frontales (7a, 7d) essentiellement en forme d'anneau circulaire et une surface d'enveloppe extérieure (7b, 7c) qui représente essentiellement une forme en tronc de cône du manteau, dont la plus grande paroi frontale (7a) est tournée vers la première portion de corps, la surface d'enveloppe extérieure comportant au moins un rétrécissement radial (7b, 7c) formant un rétrécissement d'une surface circulaire annulaire (7b), la surface circulaire annulaire (7b) ainsi que la plus petite paroi frontale (7d) de la deuxième portion de corps étant destinées à supporter les charges de tension dans la portion de construction, caractérisé en ce que les deux portions de corps sont fermement reliées entre elles, les deux bordures voisines des deux portions de corps (5, 6) se superposent au plus partiellement, la deuxième portion de corps étant constituée d'un matériau dont la résistance est inférieure à celle du matériau de la première portion de corps et supérieure à celle du béton de la portion de construction.
  2. Corps selon la revendication 1, caractérisé en ce que le rétrécissement (7b, 7c) comprend, en plus de ladite surface circulaire annulaire (7b) essentiellement une surface d'enveloppe rétrécie (7c), la surface d'enveloppe rétrécie étant connectée à la plus petite paroi frontale (7d) et s'étend selon une direction axiale du corps taillée en cône contre la plus grande paroi frontale (7a).
  3. Corps selon l'une des revendications 1 ou 2, caractérisé en ce que la surface circulaire annulaire (7b) est inclinée selon un angle réfléchi d'au plus 30° perpendiculaire à l'axe longitudinal du corps, la ligne de pourtour interne de la surface circulaire annulaire étant tournée vers la plus petite paroi frontale (7d).
  4. Corps selon l'une des revendications 1 à 3, caractérisé en ce que la surface d'enveloppe extérieure de la deuxième portion de corps comprend, dans la région du rétrécissement (7b, 7c), au moins un renflement (29) s'étendant radialement vers l'extérieur, la plus grande dimension radiale du renflement étant inférieure à la plus grande dimension radiale de la deuxième portion de corps (6) dans la région de la paroi frontale (7a) tournée vers la première portion de corps (5).
  5. Corps selon l'une des revendications 1 à 3, caractérisé en ce que des nervures (28) s'étendant axialement au-dessus du pourtour sont disposées dans la région du rétrécissement (7b, 7c).
  6. Corps selon l'une des revendications 1 à 5, caractérisé en ce que la deuxième portion de corps (6) est obtenue en un matériau moulable et durcissable de préférence un mortier.
  7. Corps selon l'une des revendications 1 à 6, caractérisé en ce que la première portion de corps (5) est de préférence obtenue en acier moulé et comprend une section essentiellement en forme de U, les deux côtés du U formant des rebords circulaires (11,12) externe et interne et la surface d'appui (2) est formée par l'anneau (13) défini par le côté de base, et la deuxième portion de corps (6) pénètre dans la rainure circonscrite à travers les surfaces tournées l'une vers l'autre de l'anneau (23) et du rebord (11,12).
  8. Corps selon la revendication 7, caractérisé en ce que le rebord extérieur (12) de la première portion de corps (5) est tourné vers l'extérieur depuis l'anneau (13) et comprend un angle (16) de 10° à 45° avec un axe longitudinal (15) du corps (1), et en ce que des traverses (14) sont prévues, s'étendant essentiellement radialement, reliant les deux rebords.
  9. Corps selon l'une des revendications 1 à 8, caractérisé en ce que la surface d'enveloppe interne (8) est de forme conique, le plus grand diamètre d'une ouverture (19) de forme conique à travers la surface d'enveloppe interne (8) étant situé sur le côté de la surface d'appui (2).
  10. Corps selon l'une des revendications 1 à 9, caractérisé en ce que la surface d'enveloppe interne (8) est revêtue d'une portion en matériau synthétique (18) essentiellement en forme de pavillon, la région de la portion en matériau synthétique (18) tournée vers la surface d'appui (2) et le rebord intérieur (11) de la première portion de corps (5) se superposent au moins partiellement.
  11. Corps selon la revendication 10, caractérisé en ce que la région d'extrémité de la portion en matériau synthétique (18) opposée à la surface d'appui (2) fait saillie hors de l'ouverture conique (19) de la deuxième portion de corps (6) et est munie de moyens (20) de liaison avec une autre portion en matériau synthétique (21) en forme de pavillon ou de tube.
  12. Corps selon la revendication 11, caractérisé en ce qu'un dispositif (22) pour connecter un tuyau de ventilation et/ou d'injection (23) est prévu dans la région d'extrémité faisant saillie de la portion en matériau synthétique (18).
  13. Corps selon la revendication 11, caractérisé en ce qu'un tuyau de ventilation et/ou d'injection débouche dans la portion en matériau synthétique (18) dans la région de la surface d'enveloppe interne (8).
  14. Corps selon l'une des revendications 10 à 13, caractérisé en ce que sur la portion en matériau synthétique (18), au moins un moyen de fixation (24, 25) permanent en liaison fonctionnelle avec la deuxième portion de corps (6) est prévu, pour empêcher un déplacement axial de la portion en matériau synthétique (18) vis-à-vis de la deuxième portion de corps (6).
  15. Corps selon l'une des revendications 10 à 14, caractérisé en ce que la première portion de corps (5) et la portion en matériau synthétique (18) sont prévues comme portion de coffrage pour obtenir la deuxième portion de corps (6).
EP19930810106 1992-03-24 1993-02-19 Elément de répartition des efforts pour un ancrage Expired - Lifetime EP0563006B1 (fr)

Priority Applications (1)

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EP19930810106 EP0563006B1 (fr) 1992-03-24 1993-02-19 Elément de répartition des efforts pour un ancrage

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Application Number Priority Date Filing Date Title
EP92810216 1992-03-24
EP92810216 1992-03-24
EP19930810106 EP0563006B1 (fr) 1992-03-24 1993-02-19 Elément de répartition des efforts pour un ancrage

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EP0563006A1 EP0563006A1 (fr) 1993-09-29
EP0563006B1 true EP0563006B1 (fr) 1997-04-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019025330A1 (fr) 2017-07-31 2019-02-07 Soletanche Freyssinet Dispositif d'ancrage d'armatures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596854A (en) * 1994-01-19 1997-01-28 Vsl International Ag Post-tensioning anchor head assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1124220B (de) * 1956-11-12 1962-02-22 Hermann Donath Bewehrungsstab fuer Beton, insbesondere fuer Spannbeton
GB894240A (en) * 1959-06-25 1962-04-18 Stup Procedes Freyssinet Improvements in anchorage devices for prestressing reinforcements
BE608227A (fr) * 1961-11-30 1962-01-02 Stressed Concrete Design Ltd Perfectionnements à la précontrainte de bâtiments ou d'ouvrages
BE663446A (fr) * 1964-05-21
AU1752167A (en) * 1967-02-09 1968-08-15 Tensioning device for pres-stressed concrete components
DE2423741A1 (de) * 1974-05-16 1975-11-20 Dyckerhoff & Widmann Ag Verankerungsvorrichtung fuer buendelspannglieder fuer spannbeton
FR2628777B1 (fr) * 1988-03-18 1990-08-17 Vsl France Dispositif d'ancrage de cables precontraints pour ouvrages du type maconnerie
DE3819023A1 (de) * 1988-06-03 1989-12-07 Werner Zapf Bewehrungsanordnung fuer baukonstruktionen aus spannbeton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019025330A1 (fr) 2017-07-31 2019-02-07 Soletanche Freyssinet Dispositif d'ancrage d'armatures

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