EP2729621B1 - Arrangement for supporting a brace, in particular a stay cable, transversely to the longitudinal extent thereof - Google Patents

Arrangement for supporting a brace, in particular a stay cable, transversely to the longitudinal extent thereof Download PDF

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Publication number
EP2729621B1
EP2729621B1 EP12729356.1A EP12729356A EP2729621B1 EP 2729621 B1 EP2729621 B1 EP 2729621B1 EP 12729356 A EP12729356 A EP 12729356A EP 2729621 B1 EP2729621 B1 EP 2729621B1
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EP
European Patent Office
Prior art keywords
adapter ring
ring
bearing surface
longitudinal axis
arrangement according
Prior art date
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EP12729356.1A
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German (de)
French (fr)
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EP2729621A1 (en
Inventor
Lorenz Schnitzler
Werner Brand
Andreas MÄRZLUFT
Egbert Zimmermann
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Dywidag Systems International GmbH
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Dywidag Systems International GmbH
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Publication of EP2729621A1 publication Critical patent/EP2729621A1/en
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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
    • E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports

Definitions

  • the invention relates to an arrangement for supporting a tension member, in particular a stay cable or a tension member, transversely to its direction of longitudinal extension in the anchoring region of a building according to the preamble of patent claim 1.
  • tension members are known in particular as stay cables or external tendons of bridge structures, where they play a key role in the recording and removal of existing loads.
  • the consisting of steel bars, steel wires or steel strands tension members are stretched for this purpose between two components of a building, the ends of the tension member are each guided within a channel through the components and anchored to the rear side. In the free area between the anchorages, the tension members are free.
  • the object of the invention is to further develop and improve the support of a tension member in the region close to the anchorage transversely to its longitudinal direction.
  • the basic idea of the invention is to provide an eccentric support of the tension member by the interaction of a plurality of axially successive mechanical components, whereby by providing eccentric to each other bearing and bearing surfaces on the components parts eccentricities E 1 and E 2 arise, which by appropriate superposition in the course of Assembly of the individual components in a predetermined relative position to each other give the existing eccentricity.
  • a first advantage of the invention results from the development in the axial direction of construction, ie in a direction in which tension members normally have enough free space.
  • the arrangement according to the invention can be kept slim, which is advantageous not only visually, but also in view of the limited space available in the anchorage area.
  • the location of the installation is in contrast to the known solutions outside of the recess tube and is therefore easily accessible from the outside. This not only facilitates the assembly and disassembly of an arrangement according to the invention, but also their maintenance and repair if necessary.
  • the arrangement according to the invention due to its ability to be dismantled, allows a subsequent adaptation to the changed geometry without any problems.
  • Another advantage of the invention is that structural precautions on the structure, such as the provision of an annular chamber in the recess tube, are not necessary. This makes first advantageous in economic terms noticeable, since the corresponding amount of work does not arise. At the same time, the arrangement according to the invention but also the retrofitting or retrofitting of existing structures without much design overhead on the building itself.
  • the two Operaxzentrizticianen E 1 and E 2 are the same size, resulting in the possibility of setting the arrangement according to the invention also on a centrally extending in the recess tube tension member.
  • eccentricity E which is greater than the sum of the two equal part eccentricities E 1 and E 2
  • one of the two Operaxzentrizticianen E 1 or E 2 is greater than the other by the use of a special adapter ring or support ,
  • radially load bearing surfaces primarily assume the function of guiding and centering surfaces, which facilitate both the axial mating of the individual components as well as their rotation about the longitudinal axis.
  • the axially loadable bearing or bearing surfaces can be composed of several stepped in the axial direction of partial surfaces.
  • the axial offset of the partial surfaces can advantageously be used to form the radially load bearing surfaces.
  • the axially and / or radially loadable bearing or bearing surfaces can be equipped slip-resistant according to an advantageous embodiment of the invention. This can be achieved by suitable surface roughness or by coating with anti-slip materials such as zinc silicate or the like.
  • the slip-resistant equipment increases the adhesion between the individual components and thus their positional safety.
  • the clamping of the components of an inventive arrangement is advantageously carried out by means of a clamping ring and clamping bolt.
  • a clamping ring and clamping bolt By a relative position of the clamping bolt radially outside of the axially loadable bearing or bearing surfaces a stepless adjustment of the part eccentricities E 1 and E 2 is ensured and thus a high-precision adaptation to a given eccentricity E.
  • a further advantageous embodiment of the invention has a spacer ring between the annular flange of the recess tube and the adapter ring.
  • a spacer ring may be welded to the annular flange or adapter ring.
  • the adapter ring and / or the support element and / or the clamping ring are divided into two.
  • the two halves can be arranged around the tension member and held together without having to dismantle the tension member for assembly or disassembly.
  • Fig. 1 one sees a part of a cable-stayed bridge 1 with a pylon 2 made of reinforced concrete, on which a roadway carrier 3 is suspended by means of stay cables 4.
  • the anchoring areas for the stay cables 4 on the pylon 2 and the roadway carrier 3 are formed by a clamping channel, which consists essentially of a steel recess tube 5, which has been passed through the pylon 2 and the carriageway carrier 3 and cast in the course of their production.
  • the clamping channel or the recess tube 5 serves to receive a respective stranded cable 4.
  • Fig. 2 gives the in Fig. 1 with "II" marked lower anchoring area on a larger scale again. It can be seen a coaxially along a first longitudinal axis 6 extending recess tube 5, which penetrates the carriageway carrier 3 and ends flush with its underside an abutment pedestal 7 present there. At the top of the roadway carrier 3, the recess tube 5 forms a projection.
  • the anchoring area in the area of the pylon 2 is essentially designed accordingly, taking into account necessary modifications for adaptation to the local conditions.
  • the tension member 4 which in the present example is formed by a bundle of individual elements 8, e.g. Steel wire strands is formed, which are arranged within a protective tube 9.
  • the annular gap between the protective tube 9 and the individual elements 8 can be filled with a hardening corrosion protection compound.
  • the tension member longitudinal axis is identified by the reference numeral 12.
  • the individual elements 8 extend parallel to each other at a close radial distance parallel to each other.
  • the individual elements 8 are spread in the anchoring area within the recess tube 5 in the direction of anchoring.
  • the individual elements 8 are surrounded by a Ringzugelement 10 cuff-like, which in turn has on its outer circumference elastomeric bearing 11.
  • the individual elements 8 are fixed by means of wedges in an anchor block 13, which is connected via an external thread with a ring nut 14 in engagement.
  • the ring nut 14 is supported on a support plate 15, which in turn rests on the abutment base 7 and the tensile forces from the tension member 4 enters the structure 1.
  • a cap 16 which is tightly connected to the ring nut 14 and filled with a corrosion protection compound surrounds the free ends of the individual elements eighth
  • the tension member 4 is surrounded by a HDPE piping 17, which ends at an axial distance in front of the recess tube 5.
  • the longitudinal axis 6 of the recess tube 5 and the longitudinal axis 12 of the tension member 4 is often not together. This has the consequence that the tension member 4 is not centrally connected to the recess tube 5, but there has an eccentricity E with respect to the longitudinal axis 6.
  • the tension member 4 is secured in the region of the Ringzugelements 10 by means of a support against movements transverse to its longitudinal axis 12.
  • a tubular support member 18, which serves with its one end to a sleeve-like Extension 19 of the casing 17 connects and is rigidly connected to the recess tube 5 with its opposite end on the flange connection according to the invention.
  • the support element 18 is already adjusted during its mounting on the existing eccentricity E of the longitudinal axis 12 relative to the longitudinal axis 6. The necessary constructive training will be described below with reference to FIGS. 3 to 7 explained in more detail.
  • FIGS. 3 to 5 and 7 show the arrangement according to the invention in each case in an exploded view.
  • the end of the recess tube 5 can be seen with the individual components of the support element 18 to be connected to the recess tube 5.
  • an annular flange 20 encircling the outer circumference of the recess tube 5 forms the end of the recess tube 5.
  • vertical side of the annular flange 20 forms a first axially resilient bearing surface 21, which is surrounded by a number on a common circumferential circle and lying at equal circumferential intervals axial through holes 22.
  • An axial view of the annular flange 20 shows Fig. 6 , View AA.
  • annular flange 20 With the annular flange 20, an adjoining in the axial direction adapter ring 23 cooperates, which encloses a central opening 30.
  • the annular flange 20 facing first side of the adapter ring 23 is in Fig. 6 , View BB shown, the opposite second side in view CC.
  • FIGS. 3 to 6 and particularly FIG. 7 make it clear that the first side of the adapter ring 23 along the outer periphery has a concentric with the longitudinal axis 6 encircling a recess resulting edge recess 24. In this way, a first stepped axially load bearing surface 25 'and a radially resilient bearing surface 25 "( Fig. 7 ).
  • the adapter ring 23 When assembling the arrangement according to the invention, the adapter ring 23 can be positively inserted into the end of the recess tube 5 with the bearing surface 25 "until the bearing surface 25 'abuts against the annular flange 20 of the recess tube 5. At this time of assembly, the adapter ring 23 can still be placed around the Longitudinal axis 6 to set a predetermined first part eccentricity E 1 are rotated.
  • FIGS. 3 to 6 and particularly FIG. 7 the specific configuration of the second side of the adapter ring 23 is apparent.
  • a second axis 28 concentrically encircling step-shaped edge recess 29 is provided, whose axis 28 extends axially parallel to the axis 6 with a first part eccentricity E 1 .
  • the two edge recesses 24 and 29 each have a rectangular cross-section, wherein the radial cross-sectional dimension of the edge recess 29 continuously changes due to the part eccentricity E 1 .
  • the radially load bearing surface 25 "and bearing surface 27" may also have a slightly conical shape to facilitate the axial connection of the adapter ring 23 to the recess tube 5 and the support member 18 to the adapter ring 23.
  • the edge recess 29 in the adapter ring 23 serves for the axial connection of a tubular support member 18, which is composed of a tubular portion 31 whose inner periphery is intended to support the tension member 4, and an eccentric flange 32 fixed to the adapter ring 23 facing the end of the tubular Section 31 is connected.
  • the longitudinal axis of the tubular portion 31 coincides with the axis 12 of the tension member 4.
  • the eccentric flange 32 has a peripheral outer edge recess 26, by means of which - in a manner analogous to that of the adapter ring 23 - a second axially loadable support surface 33 'and a radially loadable support surface 33 "are created Adapter ring 23 and eccentrically to the opening of the tubular portion 31 and the axis 12, resulting in a second partial eccentricity E 2 results.
  • the second axially loadable bearing surface 33 'of the eccentric flange 32 is formed complementary to the second axially loadable bearing surface 27' of the adapter ring 23.
  • the clamping ring 34 has an opening 35 whose diameter is smaller than the outer periphery of the Exzenterflansches 32 so that in each position an axial abutment of Clamping ring 34 is ensured on Exzenterflansch 32.
  • the opening 35 can extend both centrally and eccentrically relative to the outer circumference of the clamping ring 34.
  • axial through holes 36 are arranged whose hole pattern corresponds to that of the annular flange 20, so that the clamping ring 34 by means of the axial clamping bolt 37 and associated nuts 38 under clamping of the adapter ring 23 and Exzenterflansches 32 can be clamped against the annular flange 20 ( Fig. 5 and 8th ).
  • the eccentricity E of the tension member 4 with respect to the longitudinal axis 6 of the recess tube 5 is measured.
  • the relative desired position of the adapter ring 23 relative to the recess tube 5 and the relative desired position of the support element 18 relative to the adapter ring 23 can then be determined.
  • the only degree of freedom to achieve the desired position is the individual rotation of the adapter ring 23 and the support member 18 about their longitudinal axes, wherein in each case the radial direction of the part eccentricity E 1 and E 2 can be adjusted.
  • Vector addition of the partial eccentricities E 1 and E 2 results in this way in the measure and the direction of the total eccentricity E.
  • Adapter ring 23 and support member 18 are thus in view of the existing eccentricity E and taking into account the previously determined directions of Operaxzentrizticianen E 1 and E. 2 of the tension member 4 set in the axial direction on the end of the recess tube 5 and clamped by means of the clamping ring 34, the clamping bolt 37 and nuts 38 against the annular flange 20 and thereby fixed in the required relative position to each other.
  • This condition is fragmentary in Fig. 8 shown.
  • FIGS. 10a to 10c show by way of example three possible embodiments of the eccentricity E, which may occur during the assembly of a tension member 4.
  • Fig. 10a shows the centric position of the tension member 4 within the recess tube 5
  • Fig. 10b a relative Position of the tension member 4 with respect to the recess tube 5, in which the maximum compensated eccentricity E is reached
  • Fig. 10c the most common rule case in which the eccentricity E of the tension member 4 is smaller than the maximum compensated eccentricity E.
  • point 39 denotes the longitudinal axis 6 of the recess tube 5
  • point 39 ' the position of the axis 28 due to the Operaxzentriztician E 1 after setting the Adapter ring 23
  • point 39 the position of the longitudinal axis 12 of the tension member 4 after adjusting the eccentricity E 2 by rotating the support member 18 and superposition of the two eccentricities E 1 and E 2 .
  • the maximum total eccentricity E ( Fig. 10b ) is achieved when the part eccentricity E 1 of the adapter ring 23 and the part eccentricity E 2 of the support member 18 point in the same direction, so add up.
  • the areas between a central position of the tension member longitudinal axis 12 in the recess tube 5 and a maximum compensable eccentric position of the tension member longitudinal axis 12 are indicated by the circular line 48 and can be covered by a suitable superposition of the two Operaxzentrizticianen E 1 and E 2 , which, for example, in FIG. 10c is shown.
  • the direction of the partial eccentricity E 1 is first set by suitable rotation of the adapter ring 23 about its longitudinal axis obliquely to the right bottom (135 ° from the vertical).
  • the support member 18 whose part eccentricity E 2 to the left (270 ° from the vertical), the direction and the degree of the desired total eccentricity E.
  • FIGS. 8 and 9 show variations of the under FIGS. 1 to 7 described invention.
  • FIG. 8 one sees a partial longitudinal section through the connection region of adapter ring 23 and support element 30 to the recess tube 5.
  • This embodiment largely corresponds to that in FIGS FIGS. 1 to 7 described so that what is said there applies and use the same reference numerals.
  • a support ring 40 which bridges the axial distance between the annular flange 20 and clamping ring 34.
  • the support ring 40 extends over the entire circumference radially outside of the through holes 22 and 36 and is preferably welded to the annular flange 20 or the clamping ring 34.
  • FIGS. 9a to 9d further embodiments of the invention are explained, wherein Fig. 9a a simplified embodiment relates.
  • the recess tube 5 shown there with annular flange 20 corresponds to that under the FIGS. 1 to 8 described.
  • the adapter ring 23 ' is formed by a planar annular disk whose outer circumference is concentric with the inner circumference. Also concentric with the outer circumference, a first pitch circle is provided with a series of threaded holes whose hole pattern corresponds to the hole pattern of the through holes 22 in the annular flange 20.
  • a second circle of holes with a smaller diameter is eccentric with respect to the first circle of holes and concentric with the inner circumference of the adapter ring 23 ', wherein its hole pattern corresponds to the hole pattern of the through holes 36 in the clamping ring 34.
  • the threaded holes of the second pitch circle serve to connect the support element 18, which is screwed with its Exzenterflansch 32 'by means of the second pitch circle associated screws 44 from the opposite side via the through holes 45 to the adapter ring 23'. Adjusting the part eccentricity E 2 by turning about the longitudinal axis is only possible here in stages in the grid of the circumferential distance of the threaded holes of the second pitch circle.
  • Fig. 9b is a first evolution of the in FIG. 9a shown embodiment, in which the support member 18 is continuously adjustable to the part eccentricity E 2 .
  • the recess tube 5 and the connection of the adapter ring 23 "to the recess tube 5 corresponds to the lower Fig. 9a described.
  • Fig. 9b The embodiment according to Fig. 9b is different from the one in Fig. 9a described in that the second bolt circle in the adapter ring 23 "has a larger diameter than the outer circumference of the axially connected Exzenterflansches 32.
  • the screws 44 are radially outside the Exzenterflansches 32 and practice on the clamping ring 34 only a clamping force in the outermost edge region of the eccentric flange 32.
  • the screws 44 do not hinder the rotation of the support element 18 about its longitudinal axis, so that its stepless rotation relative to the adapter ring 23 "is possible.
  • a spacer ring 46 is arranged between adapter ring 23 "and clamping ring 34, which is penetrated by the screws 44.
  • the spacer ring 46 can be loose between the adapter ring 23" and the clamping ring 34 be inserted or be formed as an annular shoulder on the adapter ring 23 "or clamping ring 34.
  • the embodiment according to the invention Fig. 9c allows continuous adjustment of the part eccentricity E 1 .
  • a clamping flange 47 is stretched by means of the screws 42 against the adapter ring 23"'and engages behind the annular flange 20'.
  • spacer ring 43 may be arranged, which is loosely inserted between the two parts or as an annular shoulder on the clamping flange 47 or the adapter ring 23''is formed.
  • the remaining structural design of the connection of the support member 18 to the adapter ring 23 '' corresponds to the below Fig. 9a described.
  • Fig. 9d embodiment shown corresponds to a combination of in the FIGS. 9b and 9c illustrated embodiments, which allows by clamped attachment of the adapter ring 23 "" on the annular flange 20 'of the recess tube 5 and the Exzenterflansch 32 of the support member 18, a continuous adjustment of both the part eccentricity E 1 and the part eccentricity E 2 .

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Description

Technisches Gebiet:Technical area:

Die Erfindung betrifft eine Anordnung zum Abstützen eines Zugglieds, insbesondere eines Schrägseils oder eines Spannglieds, quer zu seiner Längserstreckungsrichtung im verankerungsnahen Bereich eines Bauwerks gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to an arrangement for supporting a tension member, in particular a stay cable or a tension member, transversely to its direction of longitudinal extension in the anchoring region of a building according to the preamble of patent claim 1.

Stand der Technik:State of the art:

Derartige Zugglieder sind vor allem als Schrägseile oder externe Spannglieder von Brückenbauwerken bekannt, wo ihnen bei der Aufnahme und Abtragung vorhandener Lasten eine Schlüsselfunktion zukommt. Die aus Stahlstäben, Stahldrähten oder Stahllitzen bestehenden Zugglieder sind zu diesem Zweck zwischen zwei Bauteilen eines Bauwerks gespannt, wobei die Enden des Zugglieds jeweils innerhalb eines Kanals durch die Bauteile hindurch geführt und an deren Rückseite verankert sind. Im freien Bereich zwischen den Verankerungen verlaufen die Zugglieder frei.Such tension members are known in particular as stay cables or external tendons of bridge structures, where they play a key role in the recording and removal of existing loads. The consisting of steel bars, steel wires or steel strands tension members are stretched for this purpose between two components of a building, the ends of the tension member are each guided within a channel through the components and anchored to the rear side. In the free area between the anchorages, the tension members are free.

Infolge dynamischer Lasten wie z.B. Windlasten oder Verkehrslasten, aber auch infolge temperaturbedingter Verformungen des Bauwerks, sind Bewegungen des Zugglieds im Betriebszustand insbesondere auch in Querrichtung unvermeidbar. Während solche Bewegungen im freien Bereich in Grenzen hinnehmbar sind, beeinträchtigen diese im Verankerungsbereich jedoch die Dauerfestigkeit des Zugglieds. Dem wird durch Abfangen der Bewegungen in Querrichtung entgegengewirkt.Due to dynamic loads such as Wind loads or traffic loads, but also as a result of temperature-induced deformations of the structure, movements of the tension member in the operating condition, especially in the transverse direction are unavoidable. While such free-range movements are acceptable within limits, they affect the fatigue life of the tension member in the mooring area. This is counteracted by intercepting the movements in the transverse direction.

Zu diesem Zweck ist aus der DE 295 04 739 U1 ein Zugglied bekannt, das im Verankerungsbereich innerhalb eines von einem Aussparungsrohr gebildeten Spannkanals verläuft. Zur konzentrischen Fixierung des Zugglieds im Spannkanal ist dieses von einem Ringzugelement umgeben, das einerseits die einzelnen Litzen des Zugglieds vor deren Aufspreizung zur Verankerung hin bündelt und sich andererseits mit seinem Außenumfang an der Innenseite des Aussparungsrohrs anlegt. Auf diese Weise werden Bewegungen des Zugglieds quer zu seiner Längserstreckungsrichtung auf den Bereich außerhalb des Spannkanals begrenzt und damit die Dauerfestigkeit des Zugglieds gesteigert.For this purpose is from the DE 295 04 739 U1 a tension member known which extends in the anchoring area within a clamping channel formed by a recess tube. For concentric fixation of the tension member in the clamping channel this is surrounded by a Ringzugelement, on the one hand bundles the individual strands of the tension member before spreading for anchoring and on the other hand with its outer periphery on the inside of the recess tube applies. In this way movements of the tension member are limited transversely to its longitudinal direction to the area outside of the tension channel and thus increases the fatigue strength of the tension member.

Infolge fertigungs- und montagebedingter Toleranzen oder des Durchhangs bei Schrägseilen ist es häufig der Fall, dass die tatsächliche Zuggliedlängsachse von der Sollachse abweicht. Um diese Toleranzen zu berücksichtigen, ist es notwendig, das Zugglied nicht konzentrisch im Spannkanal zu fixieren, sondern exzentrisch. Dieser Problematik nimmt sich die in der DE 34 34 620 A1 beschriebene Erfindung an, wo eine ausreichend groß bemessene, den Spannkanal über einen Längsabschnitt erweiternde Ringkammer innerhalb des Bauwerks Platz für die exzentrische Aufnahme des Zugglieds bietet. Nach Abdichtung der Ringkammer wird diese mit einem erhärtenden oder losen schüttfähigen Material verpresst und auf diese Weise die exzentrische Lage des Zugglieds innerhalb des Spannkanals fixiert. Diese Lösung hat sich in der Praxis vielfach bewährt.As a result of manufacturing and assembly-related tolerances or slack in diagonal ropes, it is often the case that the actual tension member longitudinal axis deviates from the desired axis. To account for these tolerances, it is necessary not to fix the tension member concentric in the clamping channel, but eccentric. This problem takes in the DE 34 34 620 A1 described invention, where a sufficiently large, the clamping channel over a longitudinal section widening annular chamber within the building room for the eccentric recording of the tension member offers. After sealing the annular chamber it is pressed with a hardening or loose pourable material and fixed in this way the eccentric position of the tension member within the clamping channel. This solution has proven itself many times in practice.

Eine ähnliche Vorgehensweise offenbart die DE 295 17 250 U1 , gemäß der ein ringförmiges geschlossenes Kissen um das Zugglied herum angeordnet wird, das einen abgeschlossenen Hohlraum bildet und daher ohne weitere Abdichtungsarbeiten mit einem erhärtenden Material bei gleichzeitiger Fixierung des Zugglieds verpresst werden kann.A similar procedure reveals the DE 295 17 250 U1 according to which an annular closed cushion is arranged around the tension member, which forms a closed cavity and can therefore be pressed without further sealing work with a hardening material with simultaneous fixing of the tension member.

Um den mit dem Verpressvorgang verbundenen Zeit- und Arbeitsaufwand nicht aufbringen zu müssen, ist aus der DE 200 14 322 U1 auch schon bekannt, zwei Kreisringe mit jeweils exzentrischer Öffnung so ineinander anzuordnen, dass sie in der gemeinsamen Umfangsfuge gegeneinander verdreht werden können. Dabei umschließt der innere Kreisring das Zugglied, während der äußere Kreisring sich mit seinem Außenumfang am Aussparungsrohr abstützt. Durch gegenseitiges Verdrehen der Ringe kann die Öffnung des inneren Rings an die Exzentrizität des Zugglieds angepasst werden.In order not to have to spend the time and labor associated with the pressing process, is from the DE 200 14 322 U1 also already known to arrange two circular rings with each eccentric opening into one another, that they can be rotated in the common peripheral joint against each other. In this case, the inner annulus encloses the tension member, while the outer annulus is supported with its outer circumference on the recess tube. By mutually rotating the rings, the opening of the inner ring can be adapted to the eccentricity of the tension member.

Darstellung der Erfindung:Presentation of the invention:

Vor diesem Hintergrund liegt die Aufgabe der Erfindung darin, die Abstützung eines Zugglieds im verankerungsnahen Bereich quer zu seiner Längserstreckungsrichtung weiterzuentwickeln und zu verbessern.Against this background, the object of the invention is to further develop and improve the support of a tension member in the region close to the anchorage transversely to its longitudinal direction.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved by a device having the features of patent claim 1.

Vorteilhafte Ausführungsformen ergeben sich aus den Unteransprüchen.Advantageous embodiments will be apparent from the dependent claims.

Der Grundgedanke der Erfindung besteht in der Schaffung einer exzentrischen Abstützung des Zugglieds durch das Zusammenspiel mehrerer axial aufeinanderfolgender mechanischer Bauteile, wobei durch Vorsehen exzentrisch zueinander verlaufender Lager- und Auflagerflächen an den Bauteilen Teilexzentrizitäten E1 und E2 entstehen, die durch geeignete Überlagerung im Zuge der Montage der einzelnen Bauteile in vorbestimmter relativen Lage zueinander die vorhandene Exzentrizität ergeben. Der Kraftschluss zwischen den einzelnen Bauteilen erfolgt über die axial belastbaren Lager- und Auflagerflächen, die mittels axialer Spannelemente zusammengespannt werden.The basic idea of the invention is to provide an eccentric support of the tension member by the interaction of a plurality of axially successive mechanical components, whereby by providing eccentric to each other bearing and bearing surfaces on the components parts eccentricities E 1 and E 2 arise, which by appropriate superposition in the course of Assembly of the individual components in a predetermined relative position to each other give the existing eccentricity. The adhesion between the individual components via the axially load bearing and bearing surfaces, which are clamped together by means of axial clamping elements.

Ein erster Vorteil der Erfindung ergibt sich aus der sich in axialer Richtung entwickelnden Konstruktionsweise, also in eine Richtung, in der Zugglieder im Normalfall genügend freien Raum aufweisen. In radialer Richtung kann die erfindungsgemäße Anordnung schlank gehalten werden, was nicht nur optisch, sondern auch angesichts des im verankerungsnahen Bereich nur begrenzt zur Verfügung stehenden Platzes vorteilhaft ist.A first advantage of the invention results from the development in the axial direction of construction, ie in a direction in which tension members normally have enough free space. In the radial direction, the arrangement according to the invention can be kept slim, which is advantageous not only visually, but also in view of the limited space available in the anchorage area.

Durch den axialen Anschluss der erfindungsgemäßen Anordnung an das Aussparungsrohr liegt der Ort des Einbaus im Gegensatz zu den bekannten Lösungen außerhalb des Aussparungsrohrs und ist somit von außen problemlos zugänglich. Dies erleichtert nicht nur die Montage bzw. Demontage einer erfindungsgemäßen Anordnung, sondern auch deren Wartung und gegebenenfalls Reparatur.Due to the axial connection of the arrangement according to the invention to the recess tube, the location of the installation is in contrast to the known solutions outside of the recess tube and is therefore easily accessible from the outside. This not only facilitates the assembly and disassembly of an arrangement according to the invention, but also their maintenance and repair if necessary.

Sollte sich im Laufe der Zeit die Exzentrizität E des Zugglieds infolge Formänderungsverhaltens des Bauwerks ändern, so ermöglicht die erfindungsgemäße Anordnung aufgrund ihrer Zerlegbarkeit eine nachträgliche Anpassung an die geänderte Geometrie ohne Probleme.Should the eccentricity E of the tension member change in the course of time as a result of the deformation behavior of the structure, the arrangement according to the invention, due to its ability to be dismantled, allows a subsequent adaptation to the changed geometry without any problems.

Ein weiterer Vorteil der Erfindung liegt darin, dass bauliche Vorkehrungen am Bauwerk, wie zum Beispiel das Vorsehen einer Ringkammer im Aussparungsrohr, nicht notwenig sind. Das macht sich zunächst in wirtschaftlicher Hinsicht vorteilhaft bemerkbar, da entsprechender Arbeitsaufwand nicht entsteht. Gleichzeitig eröffnet die erfindungsgemäße Anordnung aber auch die Nachrüstung bzw. das Umrüsten bestehender Bauwerke ohne großen konstruktiven Mehraufwand am Bauwerk selbst.Another advantage of the invention is that structural precautions on the structure, such as the provision of an annular chamber in the recess tube, are not necessary. This makes first advantageous in economic terms noticeable, since the corresponding amount of work does not arise. At the same time, the arrangement according to the invention but also the retrofitting or retrofitting of existing structures without much design overhead on the building itself.

Da eine erfindungsgemäße Anordnung lediglich durch den Zusammenbau weniger mechanischer Bauteile hergestellt wird, ist der dafür aufzubringende Material- und Zeitaufwand sehr gering, was die Wirtschaftlichkeit der Erfindung weiter steigert.Since an inventive arrangement is made only by the assembly of less mechanical components, the time and material required for this is very low, which further increases the efficiency of the invention.

In vorteilhafter Weiterbildung der Erfindung sind die beiden Teilexzentrizitäten E1 und E2 gleich groß, woraus sich die Möglichkeit ergibt, die erfindungsgemäße Anordnung auch auf ein im Aussparungsrohr zentrisch verlaufendes Zugglied einzustellen. Bei einer vorhandenen Exzentrizität E, die größer ist als die Summe der beiden gleich großen Teilexzentrizitäten E1 und E2 ist es auch denkbar, dass durch den Einsatz eines speziellen Adapterrings oder Abstützelements eine der beiden Teilexzentrizitäten E1 oder E2 größer ist als die andere.In an advantageous embodiment of the invention, the two Teilxzentrizitäten E 1 and E 2 are the same size, resulting in the possibility of setting the arrangement according to the invention also on a centrally extending in the recess tube tension member. With an existing eccentricity E, which is greater than the sum of the two equal part eccentricities E 1 and E 2 , it is also conceivable that one of the two Teilxzentrizitäten E 1 or E 2 is greater than the other by the use of a special adapter ring or support ,

Als vorteilhaft erweist sich ferner eine Ausführungsform der Erfindung, bei der zusätzlich zu den axial belastbaren Lager- bzw. Auflagerflächen noch radial belastbare Lagerflächen vorgesehen sind. Die radial belastbaren Lagerflächen übernehmen in erster Linie die Funktion von Führungs- und Zentrierflächen, die sowohl das axiale Zusammenstecken der einzelnen Bauteile als auch deren Verdrehen um die Längsachse erleichtern.Also proves to be advantageous embodiment of the invention, in which in addition to the axially resilient bearing or bearing surfaces still radially resilient bearing surfaces are provided. The radially load bearing surfaces primarily assume the function of guiding and centering surfaces, which facilitate both the axial mating of the individual components as well as their rotation about the longitudinal axis.

Die axial belastbaren Lager- bzw. Auflagerflächen können sich aus mehreren in axialer Richtung gestuften Teilflächen zusammensetzen. Der axiale Versatz der Teilflächen kann dabei vorteilhafterweise zur Bildung der radial belastbaren Lagerflächen genutzt werden. So ist es möglich, dass die axialen Druckkräfte in der Kontaktfuge über eine verhältnismäßig große zusammengesetzte Lager- bzw. Auflagerfläche abgetragen werden, was insgesamt zur Stabilität der Verbindung beiträgt.The axially loadable bearing or bearing surfaces can be composed of several stepped in the axial direction of partial surfaces. The axial offset of the partial surfaces can advantageously be used to form the radially load bearing surfaces. Thus, it is possible that the axial compressive forces are removed in the contact joint over a relatively large composite bearing or bearing surface, which contributes to the overall stability of the compound.

Die axial und/oder radial belastbaren Lager- bzw. Auflagerflächen können gemäß einer vorteilhaften Ausführungsform der Erfindung rutschhemmend ausgerüstet sein. Dies kann durch eine geeignete Oberflächenrauhigkeit oder durch Beschichtung mit rutschhemmenden Materialien wie zum Beispiel Zink-Silikat oder dergleichen erreicht werden. Durch die rutschhemmende Ausrüstung wird der Kraftschluss zwischen den einzelnen Bauteilen erhöht und damit deren Lagesicherheit.The axially and / or radially loadable bearing or bearing surfaces can be equipped slip-resistant according to an advantageous embodiment of the invention. This can be achieved by suitable surface roughness or by coating with anti-slip materials such as zinc silicate or the like. The slip-resistant equipment increases the adhesion between the individual components and thus their positional safety.

Das Zusammenspannen der Bauteile einer erfindungsgemäßen Anordnung erfolgt vorteilhafterweise mittels eines Klemmrings und Spannbolzen. Durch eine relative Lage der Spannbolzen radial außerhalb der axial belastbaren Lager- bzw. Auflagerflächen ist eine stufenlose Einstellung der Teilexzentrizitäten E1 und E2 gewährleistet und damit eine hochpräzise Anpassung an eine gegebene Exzentrizität E.The clamping of the components of an inventive arrangement is advantageously carried out by means of a clamping ring and clamping bolt. By a relative position of the clamping bolt radially outside of the axially loadable bearing or bearing surfaces a stepless adjustment of the part eccentricities E 1 and E 2 is ensured and thus a high-precision adaptation to a given eccentricity E.

Um Biegebeanspruchungen im Klemmring und/oder den Spannbolzen zu vermeiden weist eine weitere vorteilhafte Ausführungsform der Erfindung einen Abstandsring zwischen dem Ringflansch des Aussparungsrohrs und dem Adapterring auf. Zur Vereinfachung der Montage kann der Abstandsring am Ringflansch oder Adapterring angeschweißt sein.To avoid bending stresses in the clamping ring and / or the clamping bolt, a further advantageous embodiment of the invention has a spacer ring between the annular flange of the recess tube and the adapter ring. To simplify the assembly of the spacer ring may be welded to the annular flange or adapter ring.

Vor allem bei einer nachträglichen Montage der erfindungsgemäßen Anordnung an einem Zugglied erweist es sich als Vorteil, wenn der Adapterring und/oder das Abstützelement und/oder der Klemmring zweigeteilt sind. So können die beiden Hälften um das Zugglied herum angeordnet und zusammengehalten werden, ohne das Zugglied für die Montage oder Demontage demontieren zu müssen.Especially in a subsequent assembly of the inventive arrangement on a tension member, it proves to be an advantage if the adapter ring and / or the support element and / or the clamping ring are divided into two. Thus, the two halves can be arranged around the tension member and held together without having to dismantle the tension member for assembly or disassembly.

Kurze Beschreibung der Zeichnungen:Brief description of the drawings:

Die Erfindung wird nachstehend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert, wobei weitere Merkmale und Vorteile der Erfindung offenbart werden. Zur Erleichterung des Verständnisses werden in den einzelnen Figuren für gleiche oder funktionsgleiche Merkmale gleichlautende Bezugszeichen verwendet, soweit dies sinnvoll erscheint.The invention will be explained in more detail below with reference to an embodiment shown in the drawings, wherein further features and advantages of the invention are disclosed. To facilitate understanding, the same reference numerals are used in the individual figures for identical or functionally identical features, as far as this makes sense.

Es zeigen

Fig. 1
eine Teilansicht auf eine Schrägseilbrücke mit einer erfindungsgemäßen Anordnung,
Fig. 2
einen Längsschnitt durch den in Fig. 1 mit II gekennzeichneten Bereich, die
Fig. 3, 4
jeweils eine Schrägansicht des in Fig. 2 mit III gekennzeichneten Bereichs einer erfindungsgemäßen Anordnung in einer Explosionsdarstellung,
Fig. 5
einen Längsschnitt durch die in den Figuren 3 und 4 dargestellte Anordnung,
Fig. 6
vier Ansichten A - A bis E - E wie in Fig. 5 angegeben,
Fig. 7
einen Teillängsschnitt durch den Anschlussbereich von Abstützelement und Adapterring in größerem Maßstab,
Fig. 8
einen Teillängsschnitt durch eine Weiterentwicklung der erfindungsgemäßen Anordnung, die
Fig. 9a-e
weitere Ausführungsformen der Erfindung jeweils im Längsschnitt, und die
Fig. 10a-c
Beispiele zur zentrischen und exzentrischen Abstützung eines Schrägseils mit Hilfe einer erfindungsgemäßen Anordnung.
Show it
Fig. 1
a partial view of a cable-stayed bridge with an inventive arrangement,
Fig. 2
a longitudinal section through the in Fig. 1 marked with II area, the
Fig. 3, 4
in each case an oblique view of the in Fig. 2 III marked area of an arrangement according to the invention in an exploded view,
Fig. 5
a longitudinal section through the in the FIGS. 3 and 4 illustrated arrangement,
Fig. 6
four views A - A to E - E as in Fig. 5 stated
Fig. 7
a partial longitudinal section through the connection region of the support element and adapter ring on a larger scale,
Fig. 8
a partial longitudinal section through a further development of the inventive arrangement, the
Fig. 9a-e
further embodiments of the invention in each case in longitudinal section, and the
Fig. 10a-c
Examples of centric and eccentric support of a cable with the aid of an inventive arrangement.

Wege zur Ausführung der Erfindung und gewerbliche Verwertbarkeit:Ways to carry out the invention and commercial usability:

In Fig. 1 sieht man einen Teil einer Schrägseilbrücke 1 mit einem Pylon 2 aus Stahlbeton, an dem ein Fahrbahnträger 3 mit Hilfe von Schrägseilen 4 aufgehängt ist. Die Verankerungsbereiche für die Schrägseile 4 am Pylon 2 und Fahrbahnträger 3 werden von einem Spannkanal gebildet, der im Wesentlichen aus einem stählernen Aussparungsrohr 5 besteht, das durch den Pylon 2 bzw. den Fahrbahnträger 3 hindurchgeführt und im Zuge deren Herstellung einbetoniert worden ist. Der Spannkanal bzw. das Aussparungsrohr 5 dient zur Aufnahme jeweils eines Schrägseils 4.In Fig. 1 one sees a part of a cable-stayed bridge 1 with a pylon 2 made of reinforced concrete, on which a roadway carrier 3 is suspended by means of stay cables 4. The anchoring areas for the stay cables 4 on the pylon 2 and the roadway carrier 3 are formed by a clamping channel, which consists essentially of a steel recess tube 5, which has been passed through the pylon 2 and the carriageway carrier 3 and cast in the course of their production. The clamping channel or the recess tube 5 serves to receive a respective stranded cable 4.

Fig. 2 gibt den in Fig. 1 mit "II" gekennzeichneten unteren Verankerungsbereich in größerem Maßstab wieder. Man sieht ein koaxial entlang einer ersten Längsachse 6 verlaufendes Aussparungsrohr 5, das den Fahrbahnträger 3 durchdringt und an dessen Unterseite bündig mit einem dort vorhandenen Widerlagersockel 7 endet. An der Oberseite des Fahrbahnträgers 3 bildet das Aussparungsrohr 5 einen Überstand. Der Verankerungsbereich im Bereich des Pylons 2 ist unter Berücksichtung notwendiger Modifikationen zur Anpassung an die dortigen Gegebenheiten im Wesentlichen dementsprechend ausgebildet. Fig. 2 gives the in Fig. 1 with "II" marked lower anchoring area on a larger scale again. It can be seen a coaxially along a first longitudinal axis 6 extending recess tube 5, which penetrates the carriageway carrier 3 and ends flush with its underside an abutment pedestal 7 present there. At the top of the roadway carrier 3, the recess tube 5 forms a projection. The anchoring area in the area of the pylon 2 is essentially designed accordingly, taking into account necessary modifications for adaptation to the local conditions.

Innerhalb des Aussparungsrohrs 5 verläuft das Zugglied 4, das im vorliegenden Beispiel von einem Bündel aus Einzelelementen 8 wie z.B. Stahldrahtlitzen gebildet ist, die innerhalb eines Schutzrohres 9 angeordnet sind. Der Ringspalt zwischen dem Schutzrohr 9 und den Einzelelementen 8 kann mit einer erhärtenden Korrosionsschutzmasse verfüllt sein. Die Zuggliedlängsachse ist mit dem Bezugszeichen 12 gekennzeichnet.Within the recess tube 5 runs the tension member 4, which in the present example is formed by a bundle of individual elements 8, e.g. Steel wire strands is formed, which are arranged within a protective tube 9. The annular gap between the protective tube 9 and the individual elements 8 can be filled with a hardening corrosion protection compound. The tension member longitudinal axis is identified by the reference numeral 12.

Im freien Bereich des Zugglieds 4 verlaufen die Einzelelemente 8 in engem radialem Abstand achsparallel nebeneinander. Um ausreichenden Platz für die Verankerung der Einzelelemente 8 zu schaffen, sind die Einzelelemente 8 im Verankerungsbereich innerhalb des Aussparungsrohrs 5 in Richtung der Verankerung aufgespreizt. Zur Aufnahme der im Übergangsbereich infolge der Aufspreizung auftretenden Ringzugkräfte sind die Einzelelemente 8 von einem Ringzugelement 10 manschettenartig umgeben, das wiederum an seinem Außenumfang elastomere Lager 11 aufweist.In the free area of the tension member 4, the individual elements 8 extend parallel to each other at a close radial distance parallel to each other. In order to provide sufficient space for the anchoring of the individual elements 8, the individual elements 8 are spread in the anchoring area within the recess tube 5 in the direction of anchoring. To accommodate the occurring in the transition region as a result of the spreading Ringzugkräfte the individual elements 8 are surrounded by a Ringzugelement 10 cuff-like, which in turn has on its outer circumference elastomeric bearing 11.

Die Einzelelemente 8 sind mittels Keile in einem Ankerblock 13 festgelegt, der über ein Außengewinde mit einer Ringmutter 14 in Eingriff steht. Die Ringmutter 14 stützt sich auf einer Auflagerplatte 15 ab, die wiederum am Widerlagersockel 7 anliegt und die Zugkräfte aus dem Zugglied 4 in das Bauwerk 1 einträgt. Eine Kappe 16, die dicht mit der Ringmutter 14 verbunden und mit einer Korrosionsschutzmasse verfüllt ist, umschließt die freien Enden der Einzelelemente 8.The individual elements 8 are fixed by means of wedges in an anchor block 13, which is connected via an external thread with a ring nut 14 in engagement. The ring nut 14 is supported on a support plate 15, which in turn rests on the abutment base 7 and the tensile forces from the tension member 4 enters the structure 1. A cap 16, which is tightly connected to the ring nut 14 and filled with a corrosion protection compound surrounds the free ends of the individual elements eighth

Im freien Bereich ist das Zugglied 4 von einer HDPE-Verrohrung 17 umgeben, die in axialem Abstand vor dem Aussparungsrohr 5 endet.In the free area, the tension member 4 is surrounded by a HDPE piping 17, which ends at an axial distance in front of the recess tube 5.

Aufgrund fertigungs- und montagebedingter Toleranzen sowie lastbedingter Verformungen des Bauwerks fallen im Verankerungsbereich die Längsachse 6 des Aussparungsrohres 5 und die Längsachse 12 des Zugglieds 4 häufig nicht zusammen. Dies hat zur Folge, dass das Zugglied 4 nicht zentrisch an das Aussparungsrohr 5 anschließt, sondern dort eine Exzentrizität E gegenüber der Längsachse 6 aufweist.Due to manufacturing and assembly-related tolerances and load-induced deformations of the structure fall in the anchoring area, the longitudinal axis 6 of the recess tube 5 and the longitudinal axis 12 of the tension member 4 is often not together. This has the consequence that the tension member 4 is not centrally connected to the recess tube 5, but there has an eccentricity E with respect to the longitudinal axis 6.

Um die eingangs beschriebenen negativen Auswirkungen von Querbewegungen des Zugglieds 4 im unmittelbaren Verankerungsbereich möglichst gering zu halten, ist das Zugglied 4 im Bereich des Ringzugelements 10 mit Hilfe einer Abstützung gegen Bewegungen quer zu seiner Längsachse 12 gesichert. Zu diesem Zweck dient ein rohrförmiges Abstützelement 18, das mit seinem einen Ende an eine muffenartige Erweiterung 19 der Verrohrung 17 anschließt und mit seinem gegenüber liegenden Ende über die erfindungsgemäße Flanschverbindung biegesteif mit dem Aussparungsrohr 5 verbunden ist. Auf diese Weise ist es möglich, dass sich das Zugglied 4 mit den elastomeren Lagern 11 am Innenumfang des Abstützelements 18 anlegt und so in seiner Position gehalten wird. Das Abstützelement 18 wird dabei bereits bei seiner Montage auf die vorhandene Exzentrizität E der Längsachse 12 gegenüber der Längsachse 6 eingestellt. Die dazu notwendige konstruktive Ausbildung wird nachfolgend anhand der Figuren 3 bis 7 näher erläutert.In order to keep the negative effects of transverse movements of the tension member 4 described in the immediate anchoring area as low as possible, the tension member 4 is secured in the region of the Ringzugelements 10 by means of a support against movements transverse to its longitudinal axis 12. For this purpose, a tubular support member 18, which serves with its one end to a sleeve-like Extension 19 of the casing 17 connects and is rigidly connected to the recess tube 5 with its opposite end on the flange connection according to the invention. In this way, it is possible that the tension member 4 with the elastomeric bearings 11 on the inner periphery of the support member 18 applies and is held in position. The support element 18 is already adjusted during its mounting on the existing eccentricity E of the longitudinal axis 12 relative to the longitudinal axis 6. The necessary constructive training will be described below with reference to FIGS. 3 to 7 explained in more detail.

Die Figuren 3 bis 5 und 7 zeigen die erfindungsgemäße Anordnung jeweils in einer Explosionsdarstellung. Man sieht das Ende des Aussparungsrohrs 5 mit den einzelnen Komponenten des an das Aussparungsrohr 5 anzuschließenden, erfindungsgemäßen Abstützelements 18. Zu diesem Zweck bildet ein den Außenumfang des Aussparungsrohrs 5 umlaufender Ringflansch 20 den Abschluss des Aussparungsrohrs 5. Mit seiner dem Abstützelement 18 zugewandten und zur Längsachse 6 senkrechten Seite bildet der Ringflansch 20 eine erste axial belastbare Lagerfläche 21 aus, die von einer Anzahl auf einem gemeinsamen Umfangskreis und in gleichen Umfangsabständen liegenden axialen Durchgangsbohrungen 22 umgeben ist. Eine axiale Ansicht auf den Ringflansch 20 zeigt Fig. 6, Ansicht A-A.The FIGS. 3 to 5 and 7 show the arrangement according to the invention in each case in an exploded view. The end of the recess tube 5 can be seen with the individual components of the support element 18 to be connected to the recess tube 5. For this purpose, an annular flange 20 encircling the outer circumference of the recess tube 5 forms the end of the recess tube 5. With its the support element 18 facing and to the longitudinal axis 6 vertical side of the annular flange 20 forms a first axially resilient bearing surface 21, which is surrounded by a number on a common circumferential circle and lying at equal circumferential intervals axial through holes 22. An axial view of the annular flange 20 shows Fig. 6 , View AA.

Mit dem Ringflansch 20 wirkt ein sich in axialer Richtung anschließender Adapterring 23 zusammen, der eine zentrale Öffnung 30 umschließt. Die dem Ringflansch 20 zugewandte erste Seite des Adapterrings 23 ist in Fig. 6, Ansicht B-B dargestellt, die gegenüberliegende zweite Seite in Ansicht C-C. Die Figuren 3 bis 6 und insbesondere Figur 7, machen deutlich, dass die erste Seite des Adapterrings 23 entlang des Außenumfangs eine konzentrisch die Längsachse 6 umlaufende einen Rücksprung ergebende Randausnehmung 24 aufweist. Auf diese Weise entsteht eine erste gestufte axial belastbare Auflagerfläche 25' und eine radial belastbare Auflagerfläche 25" (Fig. 7). Beim Zusammenbau der erfindungsgemäßen Anordnung kann der Adapterring 23 mit der Auflagerfläche 25" formschlüssig in das Ende des Aussparungsrohrs 5 eingeschoben werden, bis die Auflagerfläche 25' am Ringflansch 20 des Aussparungsrohrs 5 anliegt. Zu diesem Zeitpunkt des Zusammenbaus kann der Adapterring 23 noch beliebig um die Längsachse 6 zur Einstellung einer vorgegebenen ersten Teilexzentrizität E1 verdreht werden.With the annular flange 20, an adjoining in the axial direction adapter ring 23 cooperates, which encloses a central opening 30. The annular flange 20 facing first side of the adapter ring 23 is in Fig. 6 , View BB shown, the opposite second side in view CC. The FIGS. 3 to 6 and particularly FIG. 7 , make it clear that the first side of the adapter ring 23 along the outer periphery has a concentric with the longitudinal axis 6 encircling a recess resulting edge recess 24. In this way, a first stepped axially load bearing surface 25 'and a radially resilient bearing surface 25 "( Fig. 7 ). When assembling the arrangement according to the invention, the adapter ring 23 can be positively inserted into the end of the recess tube 5 with the bearing surface 25 "until the bearing surface 25 'abuts against the annular flange 20 of the recess tube 5. At this time of assembly, the adapter ring 23 can still be placed around the Longitudinal axis 6 to set a predetermined first part eccentricity E 1 are rotated.

Aus den Figuren 3 bis 6 und insbesondere Figur 7 geht zudem die konkrete Ausgestaltung der zweiten Seite des Adapterrings 23 hervor. Dort ist entlang des Innenumfangs der Öffnung 30 eine zu einer zweiten Achse 28 konzentrisch umlaufende stufenförmige Randausnehmung 29 vorhanden, deren Achse 28 mit einer ersten Teilexzentrizität E1 achsparallel zur Achse 6 verläuft. Infolge der Randausnehmung 29 entstehen eine zweite gestufte axial belastbare Lagerfläche 27' und eine zweite radial belastbare Auflagerfläche 27" (Figur 7). Die beiden Randausnehmungen 24 und 29 besitzen jeweils einen rechteckförmigen Querschnitt, wobei sich die radiale Querschnittsabmessung der Randausnehmung 29 infolge der Teilexzentrizität E1 stetig ändert. Die radial belastbaren Lagerfläche 25" und Auflagerfläche 27" können auch einen leicht konischen Verlauf aufweisen, um den axialen Anschluss des Adapterrings 23 an das Aussparungsrohr 5 bzw. des Abstützelements 18 an den Adapterring 23 zu erleichtern.From the FIGS. 3 to 6 and particularly FIG. 7 In addition, the specific configuration of the second side of the adapter ring 23 is apparent. There is along the inner circumference of the opening 30 to a second axis 28 concentrically encircling step-shaped edge recess 29 is provided, whose axis 28 extends axially parallel to the axis 6 with a first part eccentricity E 1 . As a result of the peripheral recess 29, a second stepped axially load bearing surface 27 'and a second radially load bearing surface 27 "(FIG. FIG. 7 ). The two edge recesses 24 and 29 each have a rectangular cross-section, wherein the radial cross-sectional dimension of the edge recess 29 continuously changes due to the part eccentricity E 1 . The radially load bearing surface 25 "and bearing surface 27" may also have a slightly conical shape to facilitate the axial connection of the adapter ring 23 to the recess tube 5 and the support member 18 to the adapter ring 23.

Die Randausnehmung 29 im Adapterring 23 dient dem axialen Anschluss eines rohrförmigen Abstützelements 18, das sich zusammensetzt aus einem rohrförmigen Abschnitt 31, dessen Innenumfang zur Abstützung des Zugglieds 4 bestimmt ist, und einem Exzenterflansch 32, der fest mit dem dem Adapterring 23 zugewandten Ende des rohrförmigen Abschnitts 31 verbunden ist. Dabei fällt die Längsachse des rohrförmigen Abschnitts 31 mit der Achse 12 des Zugglieds 4 zusammen.The edge recess 29 in the adapter ring 23 serves for the axial connection of a tubular support member 18, which is composed of a tubular portion 31 whose inner periphery is intended to support the tension member 4, and an eccentric flange 32 fixed to the adapter ring 23 facing the end of the tubular Section 31 is connected. In this case, the longitudinal axis of the tubular portion 31 coincides with the axis 12 of the tension member 4.

Entlang seines Außenumfangs weist der Exzenterflansch 32 eine umlaufende äußere Randausnehmung 26 auf, durch welche - in analoger Weise wie beim Adapterring 23 - eine zweite axial belastbare Auflagerfläche 33' und eine radial belastbare Auflagerfläche 33" entstehen. Die Randausnehmung 26 verläuft konzentrisch zur Randausnehmung 29 im Adapterring 23 und exzentrisch zur Öffnung des rohrförmigen Abschnitts 31 bzw. zur Achse 12, woraus sich eine zweite Teilexzentrizität E2 ergibt.Along its outer circumference, the eccentric flange 32 has a peripheral outer edge recess 26, by means of which - in a manner analogous to that of the adapter ring 23 - a second axially loadable support surface 33 'and a radially loadable support surface 33 "are created Adapter ring 23 and eccentrically to the opening of the tubular portion 31 and the axis 12, resulting in a second partial eccentricity E 2 results.

Die zweite axial belastbare Auflagerfläche 33' des Exzenterflansches 32 ist komplementär zur zweiten axial belastbaren Lagerfläche 27' des Adapterrings 23 ausgebildet. Durch Verdrehen des Abstützelements 30 gegenüber dem Adapterring 23 um die Achse 28 während des Zusammenbaus einer erfindungsgemäßen Anordnung kann die Richtung der Teilexzentrizität E2 eingestellt werden.The second axially loadable bearing surface 33 'of the eccentric flange 32 is formed complementary to the second axially loadable bearing surface 27' of the adapter ring 23. By rotating the support member 30 relative to the adapter ring 23 about the axis 28 during assembly of an assembly according to the invention, the direction of the part eccentricity E 2 can be adjusted.

Zum Festlegen des Adapterrings 23 und des Abstützelements 18 in vorbestimmter relativer Lage gegenüber dem Aussparungsrohr 5 dient ein Klemmring 34. Der Klemmring 34 besitzt eine Öffnung 35, deren Durchmesser kleiner ist als der Außenumfang des Exzenterflansches 32, so dass in jeder Lage eine axiale Anlage des Klemmrings 34 am Exzenterflansch 32 gewährleistet ist. Die Öffnung 35 kann dabei sowohl zentrisch als auch exzentrisch gegenüber dem Außenumfang des Klemmrings 34 verlaufen.To fix the adapter ring 23 and the support member 18 in a predetermined relative position relative to the recess tube 5 is a clamping ring 34. The clamping ring 34 has an opening 35 whose diameter is smaller than the outer periphery of the Exzenterflansches 32 so that in each position an axial abutment of Clamping ring 34 is ensured on Exzenterflansch 32. The opening 35 can extend both centrally and eccentrically relative to the outer circumference of the clamping ring 34.

Im Klemmring 34 sind axiale Durchgangsbohrungen 36 angeordnet, deren Lochbild dem des Ringflansches 20 entspricht, so dass der Klemmring 34 mit Hilfe der axialen Spannbolzen 37 und dazugehörigen Muttern 38 unter Klemmung des Adapterrings 23 und Exzenterflansches 32 gegen den Ringflansch 20 gespannt werden kann (Fig. 5 und 8).In the clamping ring 34 axial through holes 36 are arranged whose hole pattern corresponds to that of the annular flange 20, so that the clamping ring 34 by means of the axial clamping bolt 37 and associated nuts 38 under clamping of the adapter ring 23 and Exzenterflansches 32 can be clamped against the annular flange 20 ( Fig. 5 and 8th ).

Im Folgenden wird die Montage einer erfindungsgemäßen Anordnung unter Berücksichtigung einer gegebenenfalls vorhandenen Abweichung der Längsachse 12 eines Zugglieds 4 von der Längsachse 6 der Verankerung näher erläutert.In the following, the assembly of an arrangement according to the invention is explained in more detail taking into account an optionally existing deviation of the longitudinal axis 12 of a tension member 4 from the longitudinal axis 6 of the anchoring.

Nach der Installation des Zugglieds 4 wird die Exzentrizität E des Zugglieds 4 im Hinblick auf die Längsachse 6 des Aussparungsrohrs 5 gemessen. Auf Basis der vorhandenen Exzentrizität E kann dann die relative Solllage des Adapterrings 23 gegenüber dem Aussparungsrohr 5 und die relative Solllage des Abstützelements 18 gegenüber dem Adapterring 23 ermittelt werden. Einziger Freiheitsgrad zur Erreichung der Solllage ist dabei das individuelle Verdrehen des Adapterrings 23 und des Abstützelements 18 um ihre Längsachsen, wobei jeweils die radiale Richtung der Teilexzentrizität E1 bzw. E2 eingestellt werden kann. Durch Vektoraddition der Teilexzentrizitäten E1 und E2 ergibt sich auf diese Weise das Maß und die Richtung der Gesamtexzentrizität E. Adapterring 23 und Abstützelement 18 werden also im Hinblick auf die vorhandene Exzentrizität E und unter Berücksichtigung der zuvor ermittelten Richtungen der Teilexzentrizitäten E1 und E2 des Zugglieds 4 in axialer Richtung auf das Ende des Aussparungsrohrs 5 gesetzt und mit Hilfe des Klemmrings 34, der Spannbolzen 37 und Muttern 38 gegen den Ringflansch 20 gespannt und dabei in der erforderlichen relativen Lage zueinander fixiert. Dieser Zustand ist ausschnittsweise in Fig. 8 gezeigt.After installation of the tension member 4, the eccentricity E of the tension member 4 with respect to the longitudinal axis 6 of the recess tube 5 is measured. On the basis of the existing eccentricity E, the relative desired position of the adapter ring 23 relative to the recess tube 5 and the relative desired position of the support element 18 relative to the adapter ring 23 can then be determined. The only degree of freedom to achieve the desired position is the individual rotation of the adapter ring 23 and the support member 18 about their longitudinal axes, wherein in each case the radial direction of the part eccentricity E 1 and E 2 can be adjusted. Vector addition of the partial eccentricities E 1 and E 2 results in this way in the measure and the direction of the total eccentricity E. Adapter ring 23 and support member 18 are thus in view of the existing eccentricity E and taking into account the previously determined directions of Teilxzentrizitäten E 1 and E. 2 of the tension member 4 set in the axial direction on the end of the recess tube 5 and clamped by means of the clamping ring 34, the clamping bolt 37 and nuts 38 against the annular flange 20 and thereby fixed in the required relative position to each other. This condition is fragmentary in Fig. 8 shown.

Die Figuren 10a bis 10c zeigen exemplarisch drei mögliche Fallgestaltungen der Exzentrizität E, die bei der Montage eines Zugglieds 4 auftreten können. Fig. 10a zeigt die zentrische Lage des Zugglieds 4 innerhalb des Aussparungsrohrs 5, Fig. 10b eine relative Lage des Zugglieds 4 gegenüber dem Aussparungsrohr 5, bei der die maximal ausgleichbare Exzentrizität E erreicht ist, und Fig. 10c den am häufigsten auftretenden Regelfall, bei dem die Exzentrizität E des Zugglieds 4 kleiner ist als die maximal ausgleichbare Exzentrizität E. Dabei kennzeichnet Punkt 39 die Längsachse 6 des Aussparungsrohrs 5, Punkt 39' die Position der Achse 28 infolge der Teilexzentrizität E1 nach Einstellen des Adapterrings 23 und Punkt 39" die Position der Längsachse 12 des Zugglieds 4 nach Einstellen der Exzentrizität E2 durch Verdrehen des Abstützelements 18 und Überlagerung der beiden Exzentrizitäten E1 und E2.The FIGS. 10a to 10c show by way of example three possible embodiments of the eccentricity E, which may occur during the assembly of a tension member 4. Fig. 10a shows the centric position of the tension member 4 within the recess tube 5, Fig. 10b a relative Position of the tension member 4 with respect to the recess tube 5, in which the maximum compensated eccentricity E is reached, and Fig. 10c the most common rule case in which the eccentricity E of the tension member 4 is smaller than the maximum compensated eccentricity E. Here, point 39 denotes the longitudinal axis 6 of the recess tube 5, point 39 ', the position of the axis 28 due to the Teilxzentrizität E 1 after setting the Adapter ring 23 and point 39 "the position of the longitudinal axis 12 of the tension member 4 after adjusting the eccentricity E 2 by rotating the support member 18 and superposition of the two eccentricities E 1 and E 2 .

Im Falle des zentrischen Verlaufs der Zuggliedlängsachse 12 innerhalb des Aussparungsrohrs 5 (Fig. 10a) werden der Adapterring 23 und das Abstützelement 18 derart zusammengefügt, dass die Teilexzentrizitäten E1 und E2 in entgegengesetzter Richtung wirken. Sind die Teilexzentrizitäten E1 und E2 gleich groß, so heben sie sich gegenseitig auf und das Maß der Gesamtexzentrizität E beträgt Null.In the case of the centric course of the tension member longitudinal axis 12 within the recess tube 5 (FIG. Fig. 10a ), the adapter ring 23 and the support member 18 are assembled such that the Teilxzentrizitäten E 1 and E 2 act in the opposite direction. If the part eccentricities E 1 and E 2 are the same, they cancel each other out and the measure of the total eccentricity E is zero.

Die maximale Gesamtexzentrizität E (Fig. 10b) wird dann erreicht, wenn die Teilexzentrizität E1 des Adapterrings 23 und die Teilexzentrizität E2 des Abstützelements 18 in gleiche Richtung weisen, sich also addieren.The maximum total eccentricity E ( Fig. 10b ) is achieved when the part eccentricity E 1 of the adapter ring 23 and the part eccentricity E 2 of the support member 18 point in the same direction, so add up.

Die Bereiche zwischen einer zentrischen Lage der Zuggliedlängsachse 12 im Aussparungsrohr 5 und einer maximal ausgleichbaren exzentrischen Lage der Zuggliedlängsachse 12 sind mit der Kreislinie 48 gekennzeichnet und können durch eine geeignete Überlagerung der beiden Teilexzentrizitäten E1 und E2 abgedeckt werden, was beispielsweise in Figur 10c dargestellt ist. Dort wird zunächst die Richtung der Teilexzentrizität E1 durch geeignetes Verdrehen des Adapterrings 23 um seine Längsachse schräg nach rechts unten (135° aus der Vertikalen) eingestellt. Im Zuge des Aufsetzens des Abstützelements 18, dessen Teilexzentrizität E2 nach links (270° aus der Vertikalen) weist, ergibt sich die Richtung und das Maß der gewünschten Gesamtexzentrizität E.The areas between a central position of the tension member longitudinal axis 12 in the recess tube 5 and a maximum compensable eccentric position of the tension member longitudinal axis 12 are indicated by the circular line 48 and can be covered by a suitable superposition of the two Teilxzentrizitäten E 1 and E 2 , which, for example, in FIG. 10c is shown. There, the direction of the partial eccentricity E 1 is first set by suitable rotation of the adapter ring 23 about its longitudinal axis obliquely to the right bottom (135 ° from the vertical). In the course of placing the support member 18, whose part eccentricity E 2 to the left (270 ° from the vertical), the direction and the degree of the desired total eccentricity E.

Die Figuren 8 und 9 zeigen Abwandlungen der unter den Figuren 1 bis 7 beschriebenen Erfindung. In Figur 8 sieht man einen Teillängsschnitt durch den Anschlussbereich von Adapterring 23 und Abstützelement 30 an das Aussparungsrohr 5. Diese Ausführungsform entspricht weitestgehend der in den Figuren 1 bis 7 beschriebenen, so dass das dort Gesagte gilt und gleiche Bezugszeichen Verwendung finden.The FIGS. 8 and 9 show variations of the under FIGS. 1 to 7 described invention. In FIG. 8 one sees a partial longitudinal section through the connection region of adapter ring 23 and support element 30 to the recess tube 5. This embodiment largely corresponds to that in FIGS FIGS. 1 to 7 described so that what is said there applies and use the same reference numerals.

Zusätzlich weist die in Fig. 8 dargestellte Ausführungsform einen Abstützring 40 auf, der den axialen Abstand zwischen Ringflansch 20 und Klemmring 34 überbrückt. Der Abstützring 40 verläuft dabei über den gesamten Umfang radial außerhalb der Durchgangsbohrungen 22 bzw. 36 und ist vorzugsweise am Ringflansch 20 oder am Klemmring 34 angeschweißt.In addition, the in Fig. 8 illustrated embodiment, a support ring 40, which bridges the axial distance between the annular flange 20 and clamping ring 34. The support ring 40 extends over the entire circumference radially outside of the through holes 22 and 36 and is preferably welded to the annular flange 20 or the clamping ring 34.

Anhand der Figuren 9a bis 9d werden weitere Ausführungsformen der Erfindung erläutert, wobei Fig. 9a eine vereinfachte Ausführungsform betrifft. Das dort dargestellte Aussparungsrohr 5 mit Ringflansch 20 entspricht dem unter den Figuren 1 bis 8 beschriebenen. Der Adapterring 23' wird von einer planen Ringscheibe gebildet, deren Außenumfang konzentrisch zum Innenumfang verläuft. Ebenfalls konzentrisch zum Außenumfang ist ein erster Lochkreis mit einer Reihe von Gewindebohrungen vorgesehen, deren Lochbild dem Lochbild der Durchgangsbohrungen 22 im Ringflansch 20 entspricht. Ein zweiter Lochkreis mit geringerem Durchmesser verläuft exzentrisch gegenüber dem ersten Lochkreis und konzentrisch zum Innenumfang des Adapterrings 23', wobei dessen Lochbild dem Lochbild der Durchgangsbohrungen 36 im Klemmring 34 entspricht. Mittels der dem ersten Lochkreis zugeordneten Schrauben 42 ist der Adapterring 23' derart am Ringflansch 20 angeschraubt, dass die Teilexzentrizität E1 in die vorbestimmte Richtung zeigt. Die Einstellung der Exzentrizität E1 durch Verdrehen des Adapterrings 23' ist nur stufenweise im Umfangsabstand der Durchgangsbohrungen 22 möglich.Based on FIGS. 9a to 9d further embodiments of the invention are explained, wherein Fig. 9a a simplified embodiment relates. The recess tube 5 shown there with annular flange 20 corresponds to that under the FIGS. 1 to 8 described. The adapter ring 23 'is formed by a planar annular disk whose outer circumference is concentric with the inner circumference. Also concentric with the outer circumference, a first pitch circle is provided with a series of threaded holes whose hole pattern corresponds to the hole pattern of the through holes 22 in the annular flange 20. A second circle of holes with a smaller diameter is eccentric with respect to the first circle of holes and concentric with the inner circumference of the adapter ring 23 ', wherein its hole pattern corresponds to the hole pattern of the through holes 36 in the clamping ring 34. By means of the bolts 42 assigned to the first bolt circle, the adapter ring 23 'is screwed onto the ring flange 20 in such a way that the part eccentricity E 1 points in the predetermined direction. The adjustment of the eccentricity E 1 by rotating the adapter ring 23 'is only gradually in the circumferential distance of the through holes 22 possible.

Die Gewindebohrungen des zweiten Lochkreises dienen dem Anschluss des Abstützelements 18, das mit seinem Exzenterflansch 32' mittels der dem zweiten Lochkreis zugeordneten Schrauben 44 von der gegenüberliegenden Seite über die Durchgangsbohrungen 45 an den Adapterring 23' angeschraubt wird. Ein Einstellen der Teilexzentrizität E2 durch Verdrehen um die Längsachse ist auch hier nur stufenweise im Raster des Umfangsabstands der Gewindebohrungen des zweiten Lochkreises möglich.The threaded holes of the second pitch circle serve to connect the support element 18, which is screwed with its Exzenterflansch 32 'by means of the second pitch circle associated screws 44 from the opposite side via the through holes 45 to the adapter ring 23'. Adjusting the part eccentricity E 2 by turning about the longitudinal axis is only possible here in stages in the grid of the circumferential distance of the threaded holes of the second pitch circle.

In Fig. 9b ist eine erste Weiterentwicklung der in Figur 9a dargestellten Ausführungsform gezeigt, bei der das Abstützelement 18 stufenlos auf die Teilexzentrizität E2 einstellbar ist. Das Aussparungsrohr 5 und der Anschluss des Adapterrings 23" an das Aussparungsrohr 5 entspricht dem unter Fig. 9a beschriebenen.In Fig. 9b is a first evolution of the in FIG. 9a shown embodiment, in which the support member 18 is continuously adjustable to the part eccentricity E 2 . The recess tube 5 and the connection of the adapter ring 23 "to the recess tube 5 corresponds to the lower Fig. 9a described.

Die Ausführungsform gemäß Fig. 9b unterscheidet sich von der in Fig. 9a beschriebenen dadurch, dass der zweite Lochkreis im Adapterring 23" einen größeren Durchmesser aufweist als der Außenumfang des axial anzuschließenden Exzenterflansches 32. Auf diese Weise liegen die Schrauben 44 radial außerhalb des Exzenterflansches 32 und üben über den Klemmring 34 lediglich eine Klemmkraft im äußersten Randbereich des Exzenterflansches 32 aus. Die Schrauben 44 behindern dabei nicht die Verdrehung des Abstützelements 18 um dessen Längsachse, so dass dessen stufenloses Verdrehen gegenüber dem Adapterring 23" möglich ist.The embodiment according to Fig. 9b is different from the one in Fig. 9a described in that the second bolt circle in the adapter ring 23 "has a larger diameter than the outer circumference of the axially connected Exzenterflansches 32. In this way, the screws 44 are radially outside the Exzenterflansches 32 and practice on the clamping ring 34 only a clamping force in the outermost edge region of the eccentric flange 32. The screws 44 do not hinder the rotation of the support element 18 about its longitudinal axis, so that its stepless rotation relative to the adapter ring 23 "is possible.

Um Biegebeanspruchungen in den Schrauben 44 und im Klemmring 34 bestmöglich zu verhindern, ist zwischen Adapterring 23" und Klemmring 34 ein Abstandsring 46 angeordnet, welcher von den Schrauben 44 durchsetzt ist. Der Abstandsring 46 kann dabei lose zwischen dem Adapterring 23" und dem Klemmring 34 eingelegt sein oder aber als Ringschulter an den Adapterring 23" oder Klemmring 34 angeformt sein.In order to best prevent bending stresses in the screws 44 and in the clamping ring 34, a spacer ring 46 is arranged between adapter ring 23 "and clamping ring 34, which is penetrated by the screws 44. The spacer ring 46 can be loose between the adapter ring 23" and the clamping ring 34 be inserted or be formed as an annular shoulder on the adapter ring 23 "or clamping ring 34.

Die erfindungsgemäße Ausführungsform nach Fig. 9c ermöglicht eine stufenlose Einstellung der Teilexzentrizität E1. Dazu ragt der Adapterring 23"' mit seinem Außenumfang radial über den Außenumfang des Ringflansches 20'. Ein Klemmflansch 47 ist mittels der Schrauben 42 gegen den Adapterring 23"' gespannt und hintergreift dabei den Ringflansch 20'. Auch hier kann zwischen dem Adapterring 23"' und dem Klemmflansch 47 ein von den Schrauben 42 durchdrungener Abstandsring 43 angeordnet sein, der lose zwischen die beiden Teile eingefügt oder als Ringschulter an den Klemmflansch 47 oder den Adapterring 23"' angeformt ist. Die übrige konstruktive Ausbildung des Anschlusses des Abstützelements 18 an den Adapterring 23"' entspricht der unter Fig. 9a beschriebenen.The embodiment according to the invention Fig. 9c allows continuous adjustment of the part eccentricity E 1 . To this end, the adapter ring 23 "'protrudes with its outer circumference radially beyond the outer circumference of the annular flange 20'. A clamping flange 47 is stretched by means of the screws 42 against the adapter ring 23"'and engages behind the annular flange 20'. Again, between the adapter ring 23 "'and the clamping flange 47 a penetrated by the screws 42 spacer ring 43 may be arranged, which is loosely inserted between the two parts or as an annular shoulder on the clamping flange 47 or the adapter ring 23''is formed. The remaining structural design of the connection of the support member 18 to the adapter ring 23 '' corresponds to the below Fig. 9a described.

Die in Fig. 9d gezeigte Ausführungsform entspricht einer Kombination der in den Figuren 9b und 9c dargestellten Ausführungsformen, die durch klemmende Befestigung des Adapterrings 23"" am Ringflansch 20' des Aussparungsrohrs 5 und am Exzenterflansch 32 des Abstützelements 18 eine stufenlose Einstellung sowohl der Teilexzentrizität E1 als auch der Teilexzentrizität E2 erlaubt.In the Fig. 9d embodiment shown corresponds to a combination of in the FIGS. 9b and 9c illustrated embodiments, which allows by clamped attachment of the adapter ring 23 "" on the annular flange 20 'of the recess tube 5 and the Exzenterflansch 32 of the support member 18, a continuous adjustment of both the part eccentricity E 1 and the part eccentricity E 2 .

Es versteht sich, dass die Erfindung nicht auf die Merkmalskombinationen der einzelnen Ausführungsbeispiele beschränkt ist, sondern ebenso Kombinationen der Merkmale unterschiedlicher Ausführungsformen umfasst.It is understood that the invention is not limited to the feature combinations of the individual embodiments, but also includes combinations of the features of different embodiments.

Claims (10)

  1. Arrangement for supporting a tension member (4), in particular a stay cable or a tendon, transversely with respect to a longitudinal extent direction thereof in the region of a structure (1) which is close to the anchorage,
    - comprising a cavity pipe (5) which receives the tension member (4) in the region close to the anchorage and extends coaxially along a first longitudinal axis (6), one end of said cavity pipe having a first axially loadable bearing surface (21) that is concentric with respect to the first longitudinal axis (6), characterised by an adapter ring (23)
    which has a first axially loadable support surface (25') on its first side facing the cavity pipe (5), which bearing surface extends concentrically with respect to the first longitudinal axis (6) and is designed for mounting the adapter ring (23) in a predetermined position on the first bearing surface (21) of the cavity pipe (5) after rotation about the first longitudinal axis (6), and
    - which has a second axially loadable bearing surface (27') on its second side facing away from the cavity pipe (5), which bearing surface extends concentrically with respect to a second longitudinal axis (28) and has an eccentricity E1 with respect to the first longitudinal axis (6),
    - a tubular or annular supporting element (18) that has a second axially loadable support surface (33') which is arranged concentrically with respect to the second axially loadable bearing surface (27') of the adapter ring (23) and the opening in which, which encircles a third longitudinal axis (12), forms a supporting surface for the tension member (4) by means of its inner circumference, the opening having an eccentricity E2 with respect to the second axially loadable support surface (33') of the supporting element (18),
    - fastening means (37, 38) for axially clamping the cavity pipe (5), the adapter ring (23) and the supporting element (18) in their position relative to one another.
  2. Arrangement according to claim 1, characterised in that the degree of partial eccentricity E1 is equal to or less than the degree of partial eccentricity E2.
  3. Arrangement according to either claim 1 or claim 2, characterised in that the adapter ring (23) has, on its first side, a first radially loadable bearing surface (25") which cooperates in a positive-fit manner with a radially loadable surface, preferably the inner circumference, of the cavity pipe (5).
  4. Arrangement according to any of claims 1 to 3, characterised in that the adapter ring (23) has, on its second side, a second radially loadable bearing surface (27") which cooperates in a positive-fit manner with a radially loadable surface (33") on the supporting element (18).
  5. Arrangement according to any of claims 1 to 4, characterised in that the adapter ring (23) has, on its first and/or second side, an annular recess (24, 29), and the first axially loadable support surface (25') and/or the second axially loadable bearing surface (27') is/are formed by two partial surfaces having an axial offset.
  6. Arrangement according to claim 5, characterised in that the surface of the recess (24, 29) which forms the axial offset in each case forms the radially loadable bearing surface (25", 27").
  7. Arrangement according to any of claims 1 to 6, characterised in that the contact surfaces between the cavity pipe (5) and the adapter ring (23) and/or between the adapter ring (23) and the supporting element (18) are slip-resistant at least in part.
  8. Arrangement according to any of claims 1 to 7, characterised in that the fastening means includes at least one clamping ring (34) which is clamped against the ring flange (20) of the cavity pipe (5) via clamping bolts (37), in order to clamp the adapter ring (23) and the supporting element (18).
  9. Arrangement according to claim 8, characterised in that a spacer ring (40) is arranged between the clamping ring (34) and the cavity pipe (5) and bridges the axial spacing therebetween.
  10. Arrangement according to either claim 1 or claim 2, characterised in that the adapter ring (23) and/or the supporting element (18) and/or the clamping ring (34) has/have a multipart, preferably two-part, design.
EP12729356.1A 2011-07-04 2012-06-21 Arrangement for supporting a brace, in particular a stay cable, transversely to the longitudinal extent thereof Active EP2729621B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110106431 DE102011106431B3 (en) 2011-07-04 2011-07-04 Arrangement for supporting a tension member, in particular a stay cable, transversely to its longitudinal direction
PCT/EP2012/002612 WO2013004350A1 (en) 2011-07-04 2012-06-21 Arrangement for supporting a brace, in particular a stay cable, transversely to the longitudinal extent thereof

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EP2729621A1 EP2729621A1 (en) 2014-05-14
EP2729621B1 true EP2729621B1 (en) 2015-07-29

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EP (1) EP2729621B1 (en)
DE (1) DE102011106431B3 (en)
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WO (1) WO2013004350A1 (en)

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US20140115984A1 (en) 2014-05-01
DE102011106431B3 (en) 2012-10-25
US9009899B2 (en) 2015-04-21
EP2729621A1 (en) 2014-05-14
WO2013004350A1 (en) 2013-01-10
ES2549957T3 (en) 2015-11-03

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