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EP0351668A1 - Goujon pour façades - Google Patents

Goujon pour façades Download PDF

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Publication number
EP0351668A1
EP0351668A1 EP89112452A EP89112452A EP0351668A1 EP 0351668 A1 EP0351668 A1 EP 0351668A1 EP 89112452 A EP89112452 A EP 89112452A EP 89112452 A EP89112452 A EP 89112452A EP 0351668 A1 EP0351668 A1 EP 0351668A1
Authority
EP
European Patent Office
Prior art keywords
facade
tube
wall
mortar
borehole
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.)
Granted
Application number
EP89112452A
Other languages
German (de)
English (en)
Other versions
EP0351668B1 (fr
Inventor
Daniel Mächtle
Joachim Mayer
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.)
Maechtle GmbH
Original Assignee
Maechtle GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25870114&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0351668(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE3840055A external-priority patent/DE3840055C2/de
Application filed by Maechtle GmbH filed Critical Maechtle GmbH
Priority to AT89112452T priority Critical patent/ATE81538T1/de
Publication of EP0351668A1 publication Critical patent/EP0351668A1/fr
Application granted granted Critical
Publication of EP0351668B1 publication Critical patent/EP0351668B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
    • E04G23/0222—Replacing or adding wall ties

Definitions

  • the invention relates to a facade dowel for installation in aligned holes of a sub-wall and a spaced in front, for. B. curtain wall.
  • the invention has for its object to provide a facade dowel preferably for the renovation or renovation of existing buildings provided with curtain walls, which advantageously replaces the previously used air-layer anchors.
  • a facade dowel preferably for the renovation or renovation of existing buildings provided with curtain walls, which advantageously replaces the previously used air-layer anchors.
  • an anchor element which extends from the bottom of the borehole of the subsurface to the front of the facade and can be used in particular in a mortar joint
  • a pipe for injecting mortar that extends from the borehole entrance through the facade and the air gap into the underground wall and has outlet openings arranged in its rear area located inside the facade bore, through which the mortar connects to the wall of the facade bore (16) and forms transverse webs through the openings
  • - Lamellar seals surrounding the pipe at the entrances and exits of the holes in the sub-surface and facade - And by an irregular surface of the anchor element to improve the bond with the hardened mortar.
  • Such a proposed dowel for renovation or renovation of existing facades thus comprises a complete filling of the wall bores in the subsurface and in the facade with mortar injection pipe, the dimensions of which can preferably be adapted to the usual mortar joint thickness of about 12 to 15 mm, taking into account the lamellar seals provided for external sealing z.
  • the anchor element is designed as an essentially corrosion-resistant tube with an undersize with respect to the bore diameter, which extends from the bottom of the borehole of the base wall to the front of the facade and which has several diametrical pairs of openings as a mortar outlet in the contains the annulus formed borehole wall.
  • the advantage of this proposal is that the anchor element also serves as a tube for the mortar supply and has a high tensile and bending strength, so that it can be made thin-walled and consequently offers sufficient space as a flow channel for the mortar to be injected and also for one surrounding ring jacket composite between anchor element and borehole wall.
  • the tube of the facade dowel is at several points along its length by pairs of beads or notches, which are oriented transversely or run parallel to the circumference, in particular diametrically arranged stiffened. These notches can be arranged in pairs in the same radial plane and in an axial sequence offset by 90 ° to each other.
  • the tubular anchor element is given a certain degree of flexibility, which may be particularly desirable in the area of the air gap, so that it can follow the lateral or vertical expansion movements of the facade caused by temperature fluctuations to a limited extent without the surrounding mortar bond being destroyed.
  • the diametrically opposite pairs of openings preferably provided in the facade area of the dowel tube are dimensioned such that the mortar injected through the dowel tube initially flows through the unimpeded pipe cross-section to the open end due to the lower resistance and fills the borehole from there, while the mortar continues to build up pressure gradually emerges from the cross holes and fills the annular space in the facade wall which is closed off by the lamellar bushings. Since the largest holding function must be built in the facade wall, special attention is paid to the construction of the mortar backfill in this area.
  • the mortar forms cross bars through the pairs of openings, which are firmly connected to the mortar mass in the annular space between the dowel tube and the borehole wall. In the case of larger diameters, it can be expedient if these cross-bar anchors are replaced by those which arise when three or four holes are provided which are distributed uniformly over the circumference of the dowel tube.
  • Outer sockets can each consist of a jacket which directly encompasses the dowel tube with annular or helical lamellae directed towards the borehole wall, while at least one radially directed nub can be formed on the inside of the jacket which can be pressed into an opening of the tube for fixing the socket.
  • the lamellar bushings can be slotted longitudinally, the elasticity of the plastic material forming the bushes being sufficient for them to automatically attach themselves to the circumference of the dowel tube. If, according to another feature, the longitudinal slot runs through the molded positioning knobs of the lamellar bushing, this gives it a certain flexibility, with which it can be easily pressed into the opening in the dowel tube assigned to it and can also be expanded there again.
  • the lamellae can expediently contain a V-shaped recess at least on the side opposite the longitudinal slot, which make it easier to open the lamella bushing and serve to vent the borehole during the injection of mortar.
  • the anchor element consists of a wire nail with at least one head-shaped widening arranged near the bottom of the borehole of the subsurface wall and is surrounded at a distance from the injection pipe which extends into the subsurface wall.
  • This tube carries groups of on its outer circumference Sealing slats, between which there is a distance approximately corresponding to the width of the ventilation gap and a somewhat smaller distance than the facade thickness.
  • the above-described second embodiment is particularly suitable for use in the renovation of older facades which are not yet provided with expansion-restricting devices in accordance with the newer building regulations.
  • the relative displacements of up to 8 mm can occur due to unfavorably large differences in the thermal expansion coefficients, for example between a concrete base wall and a masonry facade.
  • a steel wire of several mm thickness is used as an anchor element under these conditions, it has both the necessary stability and elasticity for power transmission, taking into account the transverse movements and relative displacements that occur between the supporting surface and the facade.
  • Such relative displacements generally destroy the mortar column in the annular gap between the borehole wall and the anchor element, since it has a much lower elasticity than the anchor element.
  • the annular gap in the area of the air gap and on both sides thereof has a relatively small wall thickness, the destruction of the mortar column remains limited, while the mortar bond remains in the depth of the holes in the sub-surface wall and facade wall and thus the power transmission necessary for anchoring the facade is not affected.
  • the tube can consist of a plastic tube bridging the ventilation gap and a sleeve adjoining at the rear, the rear sleeve located in the facade having a plurality of longitudinal slots and molded circumferential lamellae distributed over the circumference.
  • the dowels required for certain applications can be put together by combining and plugging together plastic pipes and sleeves in appropriate prefabricated lengths depending on the width of the ventilation gap and the thickness of the facade wall.
  • the sleeve provided with longitudinal slots can contain a receptacle, surrounded by the circumferential lamellae, for the rear end of the plastic tube bridging the ventilation gap at the preceding end.
  • the injection tube can be closed at its preceding end by a stocking made of plastic fabric, the z. B. is clamped to the subsurface boring lamellae to limit the evasion of the mortar when inserting the dowel in a hollow chamber brick and thus to achieve the gradual pressure build-up by which the mortar leakage from the openings in the facade area of the dowel tube is ensured.
  • a ventilation or insulating gap 26 which is usually used for rear ventilation of the facade and can optionally be filled with insulating material.
  • a bore 16 extends through the facade 12 and is aligned with a bore section 14 in the underground wall 10.
  • the hole corresponds approximately to the thickness of a normal mortar joint of 12 to 15 mm, although other dimensions are also possible. For larger dimensions, if the mortar joint or areas next to it have to be drilled out, the broken-out wall areas 18 and 20 shown in FIG. 1 can arise at the entrance and exit of the facade bore.
  • the dowel tube 22 carries a total of three lamella bushes 24 made of resilient material or plastic, which serve as a concentric end plug for the mortar mass to be filled.
  • Each lamella bushing 24 consists of a jacket 32 which bears against the outside of the dowel tube and from which annular lamellae 34 point in the radial direction.
  • the lamellae 34 which can optionally also be helically formed on the casing, are supported on the wall of the boreholes 14 and 16 and are then effective as a seal against the mortar mass injected through the dowel tube.
  • an inwardly directed extension or knobs 36 is formed on the inside of the lamella bushing, which has a circular circumference, for example, in the enlarged illustration according to FIG. 3.
  • a positioning opening 38 is assigned to each knob in the dowel tube, into which the knob 36 is pressed and thereby the lamellae is positioned in the axial direction. The position of these openings 38 in the dowel tube can be adapted to the conditions given by the respective wall.
  • a lamellar bushing 24 closes off the annular space around the dowel tube at the entrance of the borehole 14 into the underground wall.
  • the next following lamella bushing 24 is located on the back of the facade wall 12, i. H. on the inside of the ventilation gap 26, where it closes off the annular space around the dowel inside the facade wall, which on the other hand is closed at the front by the lamella bushing arranged at the borehole entrance to the facade wall.
  • the length of the lamellar bushes 24 is dimensioned such that wall areas which have broken out around the entrance and exit are also taken into account and in any case two lamellas lie sealingly against the undamaged borehole wall.
  • the dowel tube 22 is open at both ends. 1, the dowel tube 22 can be made flexible at various points, preferably in the area of the ventilation gap by transverse beads or notches 40, which are preferably arranged in pairs on opposite sides and are also offset in pairs by 90 ° to one another. In order to achieve a particularly effective bond between the facade wall, mortar mass and dowel, the circumference of the dowel tube 22 can be roughened or grooved as a whole or only in the facade area.
  • the lamella bushing 24 is provided with a longitudinal slot 42.
  • a V-shaped recess 46 in each of the lamellae 34 on the side opposite the longitudinal slot in order to facilitate the opening of the lamellae bushing.
  • Additional V-shaped recesses 44 may be provided to facilitate air leakage from the borehole when the backfill is injected
  • a drill hole 16 is made in the mortar joint between two stones of a facade wall 12 in need of renovation and a blind hole 14 in the underlying substrate by means of a hammer drill.
  • an injection tube preferably made of plastic parts, is then put together and inserted into the aligned boreholes.
  • the injection tube comprises a plastic tube 54 for bridging the ventilation gap 26 and a rear plastic sleeve 62 which are inserted into one another and inserted into the borehole until they are around one defined dimension are pressed into the facade bore 16.
  • the plastic pipe 54 has at the preceding end 56 outer sealing lamellae 58 which prevent the mortar from escaping from the wall bore 14.
  • the plastic pipe is extended beyond the penetration depth of the sealing lamellae, so that, similarly to the steel pipe described above, a molded network can be clamped on using a plastic ring, with which the function is also ensured with hollow bricks, perforated or honeycomb bricks.
  • the total length of the plastic tube 54 depends on the ventilation gap 26 and extends beyond the length of the ventilation gap by a certain amount into the borehole 14 in the underground wall or into the borehole 16 of the facade wall.
  • the rear end 60 of the plastic tube 54 is inserted in a receptacle 68 surrounded by outer sealing fins 64 at the preceding end of the plastic sleeve 62 inserted into the facade bore.
  • the sealing lamellas 64 delimit the cavity filled with mortar and delimited to the outside by the borehole wall in the facade wall in the direction of the ventilation gap 26.
  • the plastic sleeve 62 At the rear end of the plastic sleeve 62 near the entrance of the borehole 16 there are sealing lamellas 66 on the outer circumference and in the area between In the preceding slats 64 and the rear slats 66, the plastic sleeve 62 contains a plurality of longitudinal slots 70 through which the mortar exits into the outer annular space at the latest after the borehole 14 in the underground wall has been completely filled and an increased pressure has built up.
  • the plastic tube 54 is preferably press-fitted into the receptacle 68 of the plastic sleeve 62 and locked there by a stop shoulder.
  • the plastic sleeve 62 can contain a total of four longitudinal slots 70.
  • the material bond between the mortar and the supporting substructure creates a material composite that is essential for anchoring. When using a molding net, this is stretched through the penetrating mortar, so that a force-locking connection is created by forming the borehole.
  • the annular space between the wire anchor and the inner wall of the plastic tube is preferably small.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Road Signs Or Road Markings (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP89112452A 1988-07-15 1989-07-07 Goujon pour façades Expired - Lifetime EP0351668B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89112452T ATE81538T1 (de) 1988-07-15 1989-07-07 Fassadenduebel.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3824001 1988-07-15
DE3824001 1988-07-15
DE3840055A DE3840055C2 (de) 1988-07-15 1988-11-28 Fassadendübel
DE3840055 1988-11-28

Publications (2)

Publication Number Publication Date
EP0351668A1 true EP0351668A1 (fr) 1990-01-24
EP0351668B1 EP0351668B1 (fr) 1992-10-14

Family

ID=25870114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112452A Expired - Lifetime EP0351668B1 (fr) 1988-07-15 1989-07-07 Goujon pour façades

Country Status (3)

Country Link
US (1) US4938631A (fr)
EP (1) EP0351668B1 (fr)
ES (1) ES2035457T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740033A1 (fr) * 1995-04-29 1996-10-30 Gerd Dipl.-Ing. Pleyers Dispositif pour l'application d'une méthode d'injection de trous forés
EP0779438A1 (fr) * 1995-12-15 1997-06-18 UPAT GMBH & CO Ancrage de support pour fixer une paroi extérieure à une paroi support
EP0811736A1 (fr) * 1996-06-04 1997-12-10 William George Edscer Armature de maçonnerie
DE102011017606A1 (de) 2011-04-27 2012-10-31 Hilti Aktiengesellschaft Ankervorrichtung zum Befestigen einer Platte an einer tragenden Grundstruktur
DE102019106180A1 (de) 2018-04-13 2019-10-17 Johann Moissl Verfahren zur befestigung eines dübels in einem bohrloch

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487249A (en) * 1994-03-28 1996-01-30 Shaw; Ronald D. Dowel placement apparatus for monolithic concrete pour and method of use
US5678952A (en) * 1995-11-16 1997-10-21 Shaw; Lee A. Concrete dowel placement apparatus
USD419700S (en) * 1998-11-20 2000-01-25 Shaw Lee A Load transfer dowel holder
USD459205S1 (en) 1999-02-05 2002-06-25 Lee A. Shaw Concrete dowel tube with clip
US6210070B1 (en) 1999-04-14 2001-04-03 Ron D. Shaw Concrete dowel slip tube with clip
DE60140711D1 (de) * 2000-04-28 2010-01-21 Peter James Verfahren zur Verstärkung einer Struktur
US7404274B2 (en) * 2003-11-12 2008-07-29 Hayes John T Masonry wall anchoring system
US20070134063A1 (en) * 2005-12-14 2007-06-14 Shaw And Sons, Inc. Dowel device with closed end speed cover
SE532203C2 (sv) * 2006-12-22 2009-11-10 Dynamic Rock Support As En deformerbar bergbult
US20110038675A1 (en) * 2008-10-02 2011-02-17 Nippon Steel Corporation Steel pipe for reinforcing ground, method of reinforcing ground using the same, and method of reinforcing structure
WO2012115138A1 (fr) * 2011-02-22 2012-08-30 新日本製鐵株式会社 Tuyau d'acier comprenant des renfoncements et pieu composite
US20150197898A1 (en) 2014-01-15 2015-07-16 Shaw & Sons, Inc. Concrete dowel system
US9340969B1 (en) 2014-11-13 2016-05-17 Shaw & Sons, Inc. Crush zone dowel tube
CN107820533B (zh) 2015-05-08 2020-11-27 挪曼尔特国际有限公司 局部锚固的自钻式中空岩石锚杆
US20170096810A1 (en) 2015-10-05 2017-04-06 Shaw & Sons, Inc. Concrete dowel placement system and method of making the same
US20190024367A1 (en) 2015-10-05 2019-01-24 Shaw & Sons, Inc. Concrete dowel placement system and method of making the same
PE20171394A1 (es) * 2015-12-10 2017-09-20 Ncm Innovations (Pty) Ltd Anclaje de roca de soporte de malla
US11578491B2 (en) 2020-02-07 2023-02-14 Shaw Craftsmen Concrete, Llc Topping slab installation methodology
CN115559762A (zh) * 2022-10-29 2023-01-03 中国电建集团昆明勘测设计研究院有限公司 高应力隧道碎裂岩体大变形分区锚注支护装置以及方法

Citations (11)

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DE1802770A1 (de) * 1968-10-12 1970-04-23 Alfons Harke Verfahren zum Verankern eines Befestigungselementes in einer Wand od.dgl. und zugehoeriges Befestigungselement
FR2170763A6 (fr) * 1970-12-04 1973-09-14 Omnitechnic Gmbh
FR2223587A1 (fr) * 1973-03-30 1974-10-25 Harke Alfons
GB1515162A (en) * 1976-10-07 1978-06-21 Pynford Ltd Stabilization of cavity walls
DE3225051A1 (de) * 1982-07-05 1984-01-05 Hilti AG, 9494 Schaan Duebel fuer hohlraeume aufweisende aufnahmematerialien
GB2137273A (en) * 1983-03-30 1984-10-03 Alan Geoffrey Barnett Improvements in or relating to wall ties
GB2145459A (en) * 1983-08-27 1985-03-27 Hilti Ag Ties for existing cavity-wall constructions, e.g. panels or walls
GB2152993A (en) * 1983-12-22 1985-08-14 Pynford Ltd Installing wall-tie in existing cavity wall
GB2180286A (en) * 1985-09-04 1987-03-25 Press Bat Holdings Ltd Cavity wall tie
GB2183687A (en) * 1985-12-02 1987-06-10 David Patrick Payne Fixing building components together
EP0171250B1 (fr) * 1984-07-31 1992-09-30 OLLIS, William John Bernard Méthode de fabrication d'une armature de liaison pour murs et armature obtenue par cette méthode

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US2347581A (en) * 1941-02-03 1944-04-25 Merrill E Turner Anchor bolt
US2633735A (en) * 1948-04-02 1953-04-07 John A Dondero Building construction
US3786605A (en) * 1971-03-16 1974-01-22 H Winfrey Stone anchor
US4028857A (en) * 1974-09-26 1977-06-14 Artur Fischer Method and arrangement for mounting an object at a distance from a support structure
US4096672A (en) * 1974-11-14 1978-06-27 Artur Fisher Anchoring arrangement for securing an object to a support structure having an internal cavity
GB2132299B (en) * 1982-12-17 1986-11-26 Itt Phillips Drill Uk Limited Fixing devices
DE3515146A1 (de) * 1985-04-26 1986-10-30 International Intec Co. Ets., Vaduz Vorhangfassade fuer gebaeudewaende
DE3751982T2 (de) * 1986-03-15 1997-05-07 Baker & Finnemore Ltd Verankerungsvorrichtung
DE3608775C2 (de) * 1986-03-15 1995-03-16 Int Intec Patent Holding Ets In vorgebohrte Löcher einzusetzender Injektionsanker
AT385306B (de) * 1986-06-16 1988-03-25 Pointner Ferdinand Anker

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802770A1 (de) * 1968-10-12 1970-04-23 Alfons Harke Verfahren zum Verankern eines Befestigungselementes in einer Wand od.dgl. und zugehoeriges Befestigungselement
FR2170763A6 (fr) * 1970-12-04 1973-09-14 Omnitechnic Gmbh
FR2223587A1 (fr) * 1973-03-30 1974-10-25 Harke Alfons
GB1515162A (en) * 1976-10-07 1978-06-21 Pynford Ltd Stabilization of cavity walls
DE3225051A1 (de) * 1982-07-05 1984-01-05 Hilti AG, 9494 Schaan Duebel fuer hohlraeume aufweisende aufnahmematerialien
GB2137273A (en) * 1983-03-30 1984-10-03 Alan Geoffrey Barnett Improvements in or relating to wall ties
GB2145459A (en) * 1983-08-27 1985-03-27 Hilti Ag Ties for existing cavity-wall constructions, e.g. panels or walls
GB2152993A (en) * 1983-12-22 1985-08-14 Pynford Ltd Installing wall-tie in existing cavity wall
EP0171250B1 (fr) * 1984-07-31 1992-09-30 OLLIS, William John Bernard Méthode de fabrication d'une armature de liaison pour murs et armature obtenue par cette méthode
GB2180286A (en) * 1985-09-04 1987-03-25 Press Bat Holdings Ltd Cavity wall tie
GB2183687A (en) * 1985-12-02 1987-06-10 David Patrick Payne Fixing building components together

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740033A1 (fr) * 1995-04-29 1996-10-30 Gerd Dipl.-Ing. Pleyers Dispositif pour l'application d'une méthode d'injection de trous forés
EP0779438A1 (fr) * 1995-12-15 1997-06-18 UPAT GMBH & CO Ancrage de support pour fixer une paroi extérieure à une paroi support
RU2146748C1 (ru) * 1995-12-15 2000-03-20 Упат ГмбХ унд Ко. Несущий анкер для закрепления облицовочной свод-оболочки на несущей свод-оболочке
EP0811736A1 (fr) * 1996-06-04 1997-12-10 William George Edscer Armature de maçonnerie
DE102011017606A1 (de) 2011-04-27 2012-10-31 Hilti Aktiengesellschaft Ankervorrichtung zum Befestigen einer Platte an einer tragenden Grundstruktur
EP2518236A2 (fr) 2011-04-27 2012-10-31 HILTI Aktiengesellschaft Dispositif d'ancrage destiné à la fixation d'une plaque sur une structure de base porteuse
DE102019106180A1 (de) 2018-04-13 2019-10-17 Johann Moissl Verfahren zur befestigung eines dübels in einem bohrloch

Also Published As

Publication number Publication date
US4938631A (en) 1990-07-03
EP0351668B1 (fr) 1992-10-14
ES2035457T3 (es) 1993-04-16

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