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DE20206859U1 - Double connector has anchor bolts with anchoring regions at both ends which can be anchored in receiving borings by hardening mass - Google Patents

Double connector has anchor bolts with anchoring regions at both ends which can be anchored in receiving borings by hardening mass

Info

Publication number
DE20206859U1
DE20206859U1 DE20206859U DE20206859U DE20206859U1 DE 20206859 U1 DE20206859 U1 DE 20206859U1 DE 20206859 U DE20206859 U DE 20206859U DE 20206859 U DE20206859 U DE 20206859U DE 20206859 U1 DE20206859 U1 DE 20206859U1
Authority
DE
Germany
Prior art keywords
double connector
receiving
borings
anchored
anchoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE20206859U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Priority to DE20206859U priority Critical patent/DE20206859U1/en
Publication of DE20206859U1 publication Critical patent/DE20206859U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/0004—Joining sheets, plates or panels in abutting relationship
    • F16B5/0008—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edge
    • F16B5/0024—Joining sheets, plates or panels in abutting relationship by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edge the sheets, plates or panels having holes, e.g. for dowel- type connections
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/08—Lining with building materials with preformed concrete slabs
    • E21D11/083—Methods or devices for joining adjacent concrete segments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
    • F16B13/126—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting an unthreaded element, e.g. pin or nail
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
    • F16B13/141—Fixing plugs in holes by the use of settable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B2013/006—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with sealing means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The double connector (1) connects two components (2), e.g. tubbing, which have aligned receiving borings (3). The anchor bolt (5) fitted in a boring has anchoring regions (6) at both ends. These regions can be anchored in the receiving borings by means of a hardening mass (4). The anchoring regions may have at least one cone.

Description

M 2084 29.04.2002M2084 29.04.2002

Beschreibung
5 Description
5

DoppelverbinderDouble connector

Die Erfindung betrifft einen Doppelverbinder mit den Merkmalen des Oberbegriffs des Anspruchs 1 insbesondere zum Verbinden von Tübbingen im Tunnelbau.The invention relates to a double connector with the features of the preamble of claim 1, in particular for connecting segments in tunnel construction.

Beim Bau von Tunneln wird die eigentliche Tunnelröhre aus einer Vielzahl von Ringsegmenten aus Stahlbeton, sog. Tübbinge, zusammengesetzt. Dabei stellt jeder Tübbing jeweils einen Umfangsabschnitt dar. Zwischen die Tübbinge werden Dichtungen eingelegt, die ein späteres Eindringen von Wasser in die Tunnelröhre verhindern.When building tunnels, the actual tunnel tube is made up of a large number of ring segments made of reinforced concrete, known as tubbings. Each tubbing represents a circumferential section. Seals are inserted between the tubbings to prevent water from penetrating the tunnel tube at a later date.

Zur Verbindung der Tübbinge sind unterschiedliche Systeme bekannt (Kolic, D.; Wagner, H.; Schulter, A.: „Development of Dowelled Connectors for Segmental Linings", Felsbau, Vol. 18 (2000) No. 6, S. 32 - 40). Wurden früher vor allem Schraubverbindungen gewählt, so werden heute zunehmend Dübel als Doppelverbinder verwendet. Diese zeigen ein deutlich besseres Verhalten bezüglich der späteren Bildung von Rissen in den Tübbingen, da die Dübel im Gegensatz zu Schraubverbindungen auch eigens für die Aufnahme und Ableitung von Querkräften gestaltet sind. Bei den verwendeten Dübeln handelt es sich um Spreizdübel, die überwiegend aus Kunststoff hergestellt sind. Diese haben allerdings den Nachteil, dass ihre Ausziehfestigkeit deutlich begrenzt ist. Insbesondere ist ein Kriechverhalten über längere Zeiträume nicht vermeidbar. Hierdurch verringern sich die Anpresskräfte zwischen den Tübbings, wodurch die Wirkung der Dichtung vermindert wird. Im Weiteren kann ein Spalt entstehen, der zum Eindringen von Wasser in die Tunnelröhre führt.Different systems are known for connecting the segments (Kolic, D.; Wagner, H.; Schulter, A.: "Development of Dowelled Connectors for Segmental Linings", Felsbau, Vol. 18 (2000) No. 6, pp. 32 - 40). Whereas screw connections were previously the main choice, dowels are now increasingly used as double connectors. These show significantly better behavior with regard to the later formation of cracks in the segments, since the dowels, in contrast to screw connections, are also specifically designed to absorb and dissipate transverse forces. The dowels used are expansion dowels, which are mainly made of plastic. However, these have the disadvantage that their pull-out strength is significantly limited. In particular, creep behavior over longer periods of time is unavoidable. This reduces the contact forces between the segments, which reduces the effectiveness of the seal. Furthermore, a gap can form that leads to water penetrating the tunnel tube.

Der Erfindung liegt die Aufgabe zugrunde, einen Doppelverbinder mit höherer Dauerauszugsfestigkeit zu schaffen, der zur Aufnahme von Querkräften geeignet ist.The invention is based on the object of creating a double connector with higher permanent pull-out strength, which is suitable for absorbing transverse forces.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Dabei wird in beiden zu verbindenden Bauteilen eine Verankerung mittels einerThis object is achieved according to the invention by the features of claim 1. In this case, an anchoring is provided in both components to be connected by means of a

• m• m

aushärtbaren Masse hergestellt. Der Doppelverbinder weist an beiden Enden einen Verankerungsbereich auf. Zur Verbindung zweier Bauteile wird in diese zunächst jeweils eine Aufnahmebohrung eingebracht und in diese eine aushärtbare Masse eingepresst. Anschließend wird der Doppelverbinder in eine der Aufnahmebohrungen eingesetzt und das andere Bauteil auf den Doppelverbinder aufgeschoben. Während der Aushärtezeit werden die Bauteile zueinander fixiert, was im Tunnelbau dadurch gegeben ist, dass sich die Vortriebsmaschiene zur Erstellung des Tunnelbohrlochs an den Tübbingen abstützt. Nach dem Aushärten ist der Doppelverbinder beidseitig fest verankert. Hierdurch können deutlich höhere Auszugsfestigkeiten und höhere aufnehmbare Querkräfte erreicht werden. Insbesondere die Dauerfestigkeit ist gegenüber den bekannten Dübel-Verbindungen deutlich erhöht. Da Bewegungen sowohl in der Ebene der Kontaktfläche als auch senkrecht hierzu verhindert werden, kann die Wirkung der Dichtungen auf Dauer sicher gestellt werden. Auch wird die Bildung von Rissen durch Verkantungen oder dgl. vermieden. Gleichzeitig kann durch das Prinzip der Verbund-Verankerung ein lateraler Versatz der Aufnahmebohrungen zueinander während der Montage problemlos ausgeglichen werden. Derartige Versatze sind toleranzbedingt bei der Fertigung und Positionierung der Bauteile und deren Aufnahmebohrungen unvermeidbar.hardenable mass. The double connector has an anchoring area at both ends. To connect two components, a receiving hole is first made in each of them and a hardenable mass is pressed into this. The double connector is then inserted into one of the receiving holes and the other component is pushed onto the double connector. During the hardening time, the components are fixed to one another, which is achieved in tunnel construction by the fact that the tunnel boring machine supports itself on the segments to create the tunnel borehole. After hardening, the double connector is firmly anchored on both sides. This means that significantly higher pull-out strengths and higher absorbable transverse forces can be achieved. In particular, the fatigue strength is significantly increased compared to known dowel connections. Since movements both in the plane of the contact surface and perpendicular to it are prevented, the effect of the seals can be ensured over the long term. The formation of cracks due to tilting or the like is also avoided. At the same time, the principle of composite anchoring means that a lateral offset between the mounting holes can be easily compensated during assembly. Such offsets are unavoidable due to tolerances in the manufacture and positioning of the components and their mounting holes.

In einer bevorzugten Ausführung ist der Ankerbolzen aus Metall und weist jeweils einen oder mehrere Konen im Verankerungsbereich auf. Eine im mittleren Bereich aufgesetzte Manschette aus Kunststoff mit Dichtlamellen bewirkt eine Begrenzung der Verankerungsbereiche. Der eingebrachte Mörtel wird beim Einschieben des Doppelverbinders verdrängt und verteilt sich dadurch in der Aufnahmebohrung. Durch die Dichtlamellen wird ein Austreten aus der Aufnahmebohrung verhindert und gleichzeitig eine gleichmäßige Verteilung um den gesamten Umfang des Verankerungsbereichs des Doppelverbinders erreicht. Die Dichtlamellen sind derart elastisch gestaltet, dass sie auch im Falle eines lateralen Versatzes der Aufnahmebohrungen zueinander vollständig an der Wandung der Aufnahmebohrung anliegen.In a preferred embodiment, the anchor bolt is made of metal and has one or more cones in the anchoring area. A plastic sleeve with sealing lamellas placed in the middle area limits the anchoring areas. The mortar that is introduced is displaced when the double connector is pushed in and is thus distributed in the receiving hole. The sealing lamellas prevent it from escaping from the receiving hole and at the same time ensure that it is evenly distributed around the entire circumference of the anchoring area of the double connector. The sealing lamellas are designed to be so elastic that they lie completely against the wall of the receiving hole even if the receiving holes are laterally offset from one another.

Die Erfindung wird nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Die einzige Figur 1 zeigt in einer Schnittdarstellung den Doppelverbinder 1 im montierten Zustand. In die beiden Bauteile 2 (beispielsweise Tübbinge aus Beton) sind Aufnahmebohrungen 3 eingebracht. In diese wird vor demThe invention is explained in more detail below using an embodiment shown in the drawing. The only figure 1 shows a sectional view of the double connector 1 in the assembled state. In the two components 2 (for example, concrete segments) receiving holes 3 are made.

• · · ♦ I• · · ♦ I

• ··

• ··

· a· a

-3-3

Einschieben des Doppelverbinders die aushärtbare Masse 4 eingebracht. Der Doppelverbinder 1 umfasst den Ankerbolzen 5 mit den beiden jeweils einen Konus 11 aufweisenden Verankerungsbereichen 6 sowie die Manschette 7 mit den Dichtlamellen 8. Die Manschette 7 kann beispielsweise aus Kunststoff hergestellt und durch einen Presssitz oder eine Klebeverbindung auf dem Ankerbolzen 5 aus Stahl fixiert sein. Die Dichtlamellen 8 verhindern ein Austreten der aushärtbaren Masse 4 aus den Aufnahmebohrungen 3 beim Einführen des Ankerbolzens 5. Sollte ein lateraler Versatz der Aufnahmebohrungen 3 gegeben sein (nicht dargestellt), so verformen sich die Dichtlamellen entsprechend aufgrund Ihrer Elastizität und bleiben an der Wand 9 der Aufnahmebohrungen 3 angelegt. Da der Ankerbolzen 6 deutlich schlanker ausgeführt ist als die Aufnahmebohrung 3, hat er für den Fall eines Versatzes entsprechendes Spiel, das durch die Masse 4 ausgeglichen wird. Während des Aushärtens der Masse 4 müssen die Bauteile 2 zusammengepresst werden, um die Rückstellkräfte der elastischen Dichtung 10 zu überwinden. Danach stellt der Doppelverbinder 1 eine dauerfeste Verbindung zur Aufnahme von Zug- und Querkräften dar, so dass die Dichtwirkung langfristig sichergestellt werden kann und es zu keinen Relativbewegungen der Bauteile 2 kommt.The hardenable mass 4 is introduced when the double connector is inserted. The double connector 1 comprises the anchor bolt 5 with the two anchoring areas 6, each with a cone 11, and the sleeve 7 with the sealing lamellae 8. The sleeve 7 can be made of plastic, for example, and fixed to the steel anchor bolt 5 by a press fit or an adhesive connection. The sealing lamellae 8 prevent the hardenable mass 4 from escaping from the receiving holes 3 when the anchor bolt 5 is inserted. If the receiving holes 3 are laterally offset (not shown), the sealing lamellas deform accordingly due to their elasticity and remain in place on the wall 9 of the receiving holes 3. Since the anchor bolt 6 is significantly slimmer than the receiving hole 3, it has corresponding play in the event of an offset, which is compensated for by the mass 4. While the mass 4 is hardening, the components 2 must be pressed together in order to overcome the restoring forces of the elastic seal 10. The double connector 1 then represents a permanent connection for absorbing tensile and transverse forces, so that the sealing effect can be ensured in the long term and there is no relative movement of the components 2.

Claims (5)

1. Doppelverbinder (1) zum Verbinden zweier miteinander fluchtende Aufnahmebohrungen (3) aufweisende Bauteile (2), insbesondere von Tübbingen, dadurch gekennzeichnet, dass der Ankerbolzen (5) an beiden Enden Verankerungsbereiche (6) aufweist, die mittels einer aushärtbaren Masse (4) in den Aufnahmebohrungen (3) verankerbar sind. 1. Double connector ( 1 ) for connecting two components ( 2 ) having aligned receiving bores ( 3 ), in particular segments, characterized in that the anchor bolt ( 5 ) has anchoring regions ( 6 ) at both ends which can be anchored in the receiving bores ( 3 ) by means of a hardenable mass ( 4 ). 2. Doppelverbinder nach Anspruch 1, dadurch gekennzeichnet, dass die Verankerungsbereiche (6) jeweils mindestens einen Konus (11) aufweisen. 2. Double connector according to claim 1, characterized in that the anchoring regions ( 6 ) each have at least one cone ( 11 ). 3. Doppelverbinder nach Anspruch 1, dadurch gekennzeichnet, dass der Ankerbolzen (5) aus Metall ist. 3. Double connector according to claim 1, characterized in that the anchor bolt ( 5 ) is made of metal. 4. Doppelverbinder nach Anspruch 1, dadurch gekennzeichnet, dass der Doppelverbinder (1) im mittleren Bereich eine Manschette (7) mit den Verankerungsbereich (6) begrenzende und einen lateralen Versatz der Achsen der Aufnahmebohrungen (3) ausgleichende Dichtlamellen (8) aufweist. 4. Double connector according to claim 1, characterized in that the double connector ( 1 ) has a sleeve ( 7 ) in the central region with sealing lamellae ( 8 ) which delimit the anchoring region ( 6 ) and compensate for a lateral offset of the axes of the receiving bores ( 3 ). 5. Doppelverbinder nach Anspruch 4, dadurch gekennzeichnet, dass die Manschette (7) aus Kunststoff ist. 5. Double connector according to claim 4, characterized in that the sleeve ( 7 ) is made of plastic.
DE20206859U 2002-04-30 2002-04-30 Double connector has anchor bolts with anchoring regions at both ends which can be anchored in receiving borings by hardening mass Expired - Lifetime DE20206859U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE20206859U DE20206859U1 (en) 2002-04-30 2002-04-30 Double connector has anchor bolts with anchoring regions at both ends which can be anchored in receiving borings by hardening mass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20206859U DE20206859U1 (en) 2002-04-30 2002-04-30 Double connector has anchor bolts with anchoring regions at both ends which can be anchored in receiving borings by hardening mass

Publications (1)

Publication Number Publication Date
DE20206859U1 true DE20206859U1 (en) 2003-09-04

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163760A1 (en) * 2016-05-24 2017-11-24 Fama S R L ANTI-SEISMIC JOINT FOR CONCEPTS IN CONCRETE

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315859A1 (en) * 1973-03-30 1974-10-03 Alfons Harke ANCHORING BOLTS
GB1411077A (en) * 1971-10-29 1975-10-22 Harris Ltd Edgar Method of fastening two or more members with respect to one another
CH606830A5 (en) * 1975-10-15 1978-11-15 Josef Buchholz
DE3309953A1 (en) * 1983-03-19 1984-10-11 Walter 4520 Melle Fischer Invisible joint of planar parts, in particular in furniture
DE3805538A1 (en) * 1988-02-23 1989-08-31 Int Intec Co Ets INJECTION ANCHOR TO BE INSERTED INTO PRE-DRILLED HOLES OF A MULTI-SHELLED BUILDING WALL
DE3840055A1 (en) * 1988-07-15 1990-01-18 Maechtle Gmbh FACADE DOUBLE
US5033904A (en) * 1990-01-31 1991-07-23 Challis Stairways, Inc. Tubular dowel system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1411077A (en) * 1971-10-29 1975-10-22 Harris Ltd Edgar Method of fastening two or more members with respect to one another
DE2315859A1 (en) * 1973-03-30 1974-10-03 Alfons Harke ANCHORING BOLTS
CH606830A5 (en) * 1975-10-15 1978-11-15 Josef Buchholz
DE3309953A1 (en) * 1983-03-19 1984-10-11 Walter 4520 Melle Fischer Invisible joint of planar parts, in particular in furniture
DE3805538A1 (en) * 1988-02-23 1989-08-31 Int Intec Co Ets INJECTION ANCHOR TO BE INSERTED INTO PRE-DRILLED HOLES OF A MULTI-SHELLED BUILDING WALL
DE3840055A1 (en) * 1988-07-15 1990-01-18 Maechtle Gmbh FACADE DOUBLE
US5033904A (en) * 1990-01-31 1991-07-23 Challis Stairways, Inc. Tubular dowel system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20163760A1 (en) * 2016-05-24 2017-11-24 Fama S R L ANTI-SEISMIC JOINT FOR CONCEPTS IN CONCRETE
WO2017203390A1 (en) * 2016-05-24 2017-11-30 Fama S.P.A. Anti-seismic joint for joining concrete quoins

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