EP0373308A2 - Tying means for concrete works below ground - Google Patents

Tying means for concrete works below ground Download PDF

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Publication number
EP0373308A2
EP0373308A2 EP89118296A EP89118296A EP0373308A2 EP 0373308 A2 EP0373308 A2 EP 0373308A2 EP 89118296 A EP89118296 A EP 89118296A EP 89118296 A EP89118296 A EP 89118296A EP 0373308 A2 EP0373308 A2 EP 0373308A2
Authority
EP
European Patent Office
Prior art keywords
hook
reinforcement
longitudinal wires
cross
mat
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
EP89118296A
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German (de)
French (fr)
Other versions
EP0373308A3 (en
EP0373308B1 (en
Inventor
Günter Zielinski
Rüdiger Dr. Fenne
Friedrich Wunsch
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.)
Dr R Fenne & Co Eisen- und Metallprodukte KG GmbH
Original Assignee
Dr R Fenne & Co Eisen- und Metallprodukte KG GmbH
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Filing date
Publication date
Application filed by Dr R Fenne & Co Eisen- und Metallprodukte KG GmbH filed Critical Dr R Fenne & Co Eisen- und Metallprodukte KG GmbH
Priority to AT89118296T priority Critical patent/ATE91315T1/en
Publication of EP0373308A2 publication Critical patent/EP0373308A2/en
Publication of EP0373308A3 publication Critical patent/EP0373308A3/en
Application granted granted Critical
Publication of EP0373308B1 publication Critical patent/EP0373308B1/en
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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • 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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
    • E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • 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
    • E21D11/14—Lining predominantly with metal
    • E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
    • E21D11/152—Laggings made of grids or nettings

Definitions

  • the invention relates to a reinforcement according to the preamble of the main claim.
  • the invention has for its object to provide a reinforcement that is suitable to be used in connection with flexible formwork, wherein there are special requirements that the reinforcement cannot come loose when the concrete is poured into the formwork.
  • the invention is based on the consideration that warp mats for underground mine construction are known which, when subjected to pressure from the mountains, lead to an automatic, tensile locking of the mats with one another.
  • the use of such mats as formwork aids, which are now adapted to the new application in terms of their design, has the advantage that when the concrete is poured into the formwork and the pressure then occurs, the mats tighten each other, the through the between the longitudinal and parts of the flexible formwork passing through cross wires formed fields cause the reinforcement to be firmly fixed on the outside of the formwork.
  • A indicates a concrete pillar which has a formwork made of a flexible mat B , this formwork being protected on the outside by three reinforcing mats 1, 2 and 3.
  • Each reinforcing mat 1, 2 or 3 consists of longitudinal wires 4 and transverse wires 5, which are welded together at 6 at their crossing points.
  • the longitudinal wires 4 of the reinforcing mat 1 are hook-shaped o angled in their Endbreich at 10 to about 90 and then bear on their outer side a cross member 7, which is formed by a passage extending over the entire mat width rod firmly welded to the outside of the longitudinal wires 4 is.
  • a crossbar 9 lies freely against the back of the longitudinal wires 4. In its end region it is bent onto the inside of the reinforcement mat 1, 2 or 3 and welded firmly to the longitudinal wires 4.
  • each reinforcement mat 1, 2 or 3 hooks 8 are provided, which can be achieved by simply bending back the respective longitudinal wire 4.
  • a tensile connection of the reinforcement mats 1, 2 and 3 to be connected takes place when pressure is applied due to the concrete A filled in the formwork B.
  • the forces exerted by the hooks 8 on the crossbar 9 cause the hooks 8 to be closed in a loop-shaped manner in connection with the cross element 7, so that the connection thus created is able to transmit tensile forces up to the tensile strength of the longitudinal wires 4.
  • the longitudinal bars 4 are bent or slightly angled, so that - as the drawing shows - through the interaction of the different mats 1, 2 or 3 and the corresponding bend the profile of the pillar can be achieved.
  • the number of longitudinal wires 4 depends on the height of the pillar, but it is also possible to place several mats on top of one another.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

Until now, no satisfactory proposals have been made for a more reliable protection of the flexible form work used in producing essentially round concrete works below ground. It is proposed to use the joining of individual mats known from the case of lagging mats for underground work also as the tying means, made up of such joined-together mats, which interlink in a way resistant to tensile forces when pressure is exerted by the concrete filled into the form work.

Description

Die Erfindung bezieht sich auf eine Armierung gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a reinforcement according to the preamble of the main claim.

Der Einsatz von hydraulisch abbindenden Baustoffen nimmt immer weiter zu. Untertage ist man in jüng­ster Zeit auch dazu übergegangen, im übergangsbe­reich zwischen Strecke und Streb Zementpfeiler ein­zusetzen, die an Ort und Stelle gegossen werden, wo­bei als Schalung für diesen Ortbeton flexible, rohr­artige Gewebeschläuche eingesetzt werden. Obgleich diese Gewebeschläuche eine hohe Festigkeit aufweisen, erscheint es doch erstrebenswert, die Gewebeschläuche auch außen noch durch metallische Außenarmierungen zu sichern, wodurch nicht nur der gesamte Setzkraft­druck beim Einfüllen des Betons in die Schalung auf­genommen wird, sondern gleichzeitig bildet später­hin auch die Außenarmierung noch ein Schutzgitter für den so erzielten Pfeiler.The use of hydraulically setting building materials continues to increase. Underground work has recently also started to use cement pillars in the transition area between the track and longwall, which are poured in place, with flexible, tubular fabric hoses being used as formwork for this in-situ concrete. Although these fabric hoses have a high strength, it still seems desirable to secure the fabric hoses on the outside with metallic outer reinforcements, which not only absorbs the entire setting force pressure when pouring the concrete into the formwork, but at the same time the outer reinforcement later also forms a protective grille for the pillar so obtained.

Der Erfindung liegt die Aufgabe zugrunde, eine Ar­mierung zu schaffen, die geeignet ist, in Verbindung mit flexiblen Schalungen eingesetzt zu werden, wobei besondere Anforderungen daran gestellt werden, daß sich die Armierung beim Einfüllen des Betons in die Schalung nicht lösen kann.The invention has for its object to provide a reinforcement that is suitable to be used in connection with flexible formwork, wherein there are special requirements that the reinforcement cannot come loose when the concrete is poured into the formwork.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object on which the invention is based is achieved by the teaching of the main claim.

Die Erfindung geht von der Überlegung aus, daß Ver­zugmatten für den untertägigen Grubenausbau bekannt sind, die bei Druckeinwirkung aus dem Gebirge zu einem selbsttätigen, zugfesten Verriegeln der Matten untereinander führen. Der Einsatz derartiger Matten als Schalungshilfsmittel, die nunmehr hinsichtlich der Gestaltung auf den neuen Einsatzzweck abge­stimmt sind, erbringt den Vorteil, daß beim Ein­füllen des Betons in die Schalung und dem dann auf­tretenden Druck die Matten sich gegenseitig fest­ziehen, wobei die durch die zwischen den Längs- und Querdrähten gebildeten Felder durchtretenden Teile der flexiblen Schalung ein inniges Festlegen der Ar­mierung an der Außenseite der Schalung bewirken.The invention is based on the consideration that warp mats for underground mine construction are known which, when subjected to pressure from the mountains, lead to an automatic, tensile locking of the mats with one another. The use of such mats as formwork aids, which are now adapted to the new application in terms of their design, has the advantage that when the concrete is poured into the formwork and the pressure then occurs, the mats tighten each other, the through the between the longitudinal and parts of the flexible formwork passing through cross wires formed fields cause the reinforcement to be firmly fixed on the outside of the formwork.

Die Übertragung der Lehre z. B. gemäß der DE-PS 26 01 355 auf den neuen Einsatzzweck ist er­finderisch, da es nicht nahegelegen hat, für die Ar­mierung von Betonbauwerken derartige, aus dem Be­reich der Verzugmatten bekannte Konstruktionsmerk­male zu übernehmen.The transfer of teaching z. B. according to DE-PS 26 01 355 on the new application is inventive, since it was not obvious to take such known from the area of warping construction features for the reinforcement of concrete structures.

Vorteilhafte Ausgestaltungen sind in den Unteran­sprüchen erläutert.Advantageous configurations are explained in the subclaims.

Ein Ausführungsbeispiel wird nachfolgend anhand der Zeichnung beschrieben.An embodiment is described below with reference to the drawing.

In der Zeichnung ist mit A ein Betonpfeiler ange­deutet, der eine Schalung aus einer flexiblen Matte B aufweist, wobei diese Schalung an ihrer Außenseite durch drei Armierungsmatten 1, 2 und 3 geschützt wird. Jede Armierungsmatte 1, 2 oder 3 besteht aus Längsdrähten 4 und Querdrähten 5, die an ihren Kreu­zungsstellen bei 6 miteinander verschweißt sind.In the drawing, A indicates a concrete pillar which has a formwork made of a flexible mat B , this formwork being protected on the outside by three reinforcing mats 1, 2 and 3. Each reinforcing mat 1, 2 or 3 consists of longitudinal wires 4 and transverse wires 5, which are welded together at 6 at their crossing points.

Die Längsdrähte 4 der Armierungsmatte 1 sind dabei in ihrem Endbreich bei 10 hakenförmig um etwa 90o abgewinkelt und tragen dann an ihrer Außenseite ein Querelement 7, das durch einen über die ganze Mat­tenbreite verlaufenden Stab gebildet wird, der fest auf der Außenseite der Längsdrähte 4 aufgeschweißt ist.The longitudinal wires 4 of the reinforcing mat 1 are hook-shaped o angled in their Endbreich at 10 to about 90 and then bear on their outer side a cross member 7, which is formed by a passage extending over the entire mat width rod firmly welded to the outside of the longitudinal wires 4 is.

Ein Querstab 9 liegt frei an der Rückseite der Längsdrähte 4 an. Er ist in seinem Endbereich auf die Innenseite der Armierungsmatte 1, 2 oder 3 abge­bogen und fest mit den Längsdrähten 4 verschweißt.A crossbar 9 lies freely against the back of the longitudinal wires 4. In its end region it is bent onto the inside of the reinforcement mat 1, 2 or 3 and welded firmly to the longitudinal wires 4.

Am gegenüberliegenden Ende jeder Armierungsmatte 1, 2 oder 3 sind Haken 8 vorgesehen, die durch ein­faches Zurückbiegen des jeweiligen Längsdrahtes 4 erreicht werden. Eine zugfeste Verbindung der anein­ander anzuschließenden Armierungsmatten 1, 2 und 3 erfolgt bei Druckeinwirkung aufgrund des in die Schalung B eingefüllten Betons A. Die dabei durch die Haken 8 auf den Querstab 9 ausgeübten Kräfte be­wirken ein schlaufenförmiges Zuziehen der Haken 8 in Verbindung mit dem Querelement 7, so daß dadurch die so geschaffene Verbindung in der Lage ist, Zugkräfte bis zur Zerreißfestigkeit der Längsdrähte 4 zu über­tragen.At the opposite end of each reinforcement mat 1, 2 or 3 hooks 8 are provided, which can be achieved by simply bending back the respective longitudinal wire 4. A tensile connection of the reinforcement mats 1, 2 and 3 to be connected takes place when pressure is applied due to the concrete A filled in the formwork B. The forces exerted by the hooks 8 on the crossbar 9 cause the hooks 8 to be closed in a loop-shaped manner in connection with the cross element 7, so that the connection thus created is able to transmit tensile forces up to the tensile strength of the longitudinal wires 4.

In Abhängigkeit der Größe des zu gießenden Pfeilers und in Abhängigkeit der Länge der Längsdrähte 4 werden, um den entsprechenden Umfang des Pfeilers sicher umfassen zu können, die Längsstäbe 4 gebogen oder leicht abgewinkelt, so daß - wie dies die Zeichnung zeigt - durch das Zusammenspiel der ver­schiedenen Matten 1, 2 oder 3und der entsprechenden Abwinkelung das Profil des Pfeilers erzielbar ist. Die Anzahl der Längsdrähte 4 richtet sich nach der Höhe des Pfeilers, aber es ist auch möglich, mehrere Matten übereinander zu setzen.Depending on the size of the pillar to be cast and depending on the length of the longitudinal wires 4, in order to be able to safely encompass the corresponding circumference of the pillar, the longitudinal bars 4 are bent or slightly angled, so that - as the drawing shows - through the interaction of the different mats 1, 2 or 3 and the corresponding bend the profile of the pillar can be achieved. The number of longitudinal wires 4 depends on the height of the pillar, but it is also possible to place several mats on top of one another.

Claims (6)

1. Armierung für eine flexible Schalung zur Her­stellung von im wesentlichen runden Betonbau­werken, gekennzeichnet durch mehrere mitein­ander verbundene Armierungsmatten (1, 2, 3), die je aus Längs- und Querdrähten (4, 5) be­stehen, die an den Kreuzungsstellen (6) mit­einander verbunden sind und deren Längs­drähte (4) einerseits an den Enden hakenför­mig abgebogen und andererseits abgewinkelt und mit einem fest angeordneten Querelement (7) versehen sind, gegen das sich das freie Ende jedes Hakens (8) der Längsdrähte (4) der anschließenden Armierungsmatte mit seiner Außenseite abstützend anlegt, wobei der Haken (8) im Hakentiefsten einen an der Rückseite der anderen Armierungsmatte an­geordneten Querstab (9) hintergreift und der mit dem Hakentiefsten zusammenarbeitende Querstab (9) im Bereich der angreifenden Haken (8) nachgiebig an den Längsdrähten (3) der zugeordneten Matte (1,2, 3) angeordnet ist.1. Reinforcement for flexible formwork for the production of essentially round concrete structures, characterized by several interconnected reinforcement mats (1, 2, 3), each consisting of longitudinal and transverse wires (4, 5), which are located at the crossing points (6) are connected to one another and the longitudinal wires (4) are bent on the one hand at the ends in a hook-like manner and on the other hand are angled and provided with a fixedly arranged cross element (7) against which the free end of each hook (8) of the longitudinal wires (4) of the subsequent reinforcing mat is joined supports the outside of the hook, the hook (8) in the deepest part of the hook engages behind a cross bar (9) arranged on the back of the other reinforcement mat and the transverse rod (9) cooperating with the deepest hook in the area of the engaging hooks (8) resiliently on the longitudinal wires (3 ) the assigned mat (1, 2, 3) is arranged. 2. Armierung nach Anspruch 1, dadurch gekenn­zeichnet, daß der Querstab (9) in seinen End­bereichen auf die Oberseite der Armierungs ­matte (1, 2, 3) gebogen und an einem oder mehreren der Längsdrähte (4) festgelegt ist.2. Reinforcement according to claim 1, characterized in that the cross bar (9) in its end regions on the top of the reinforcing mat (1, 2, 3) is bent and fixed to one or more of the longitudinal wires (4). 3. Armierung nach Anspruch 1 oder 2, dadurch ge­kennzeichnet, daß das Querelement (7) durch einen über die Armierungsmattenbreite durch­gehenden Querdraht (5) gebildet ist, der auf die Enden der Längsdrähte (4) aufgeschweißt ist, wobei dieses Mattenende etwa um 90o abgebogen ist.3. Reinforcement according to claim 1 or 2, characterized in that the cross element (7) is formed by a continuous across the reinforcing mat width cross wire (5) on the ends of the longitudinal wires (4) is welded, said matte finish is about o bent at 90th 4. Armierung nach einem oder mehreren der vor­hergehenden Ansprüche, dadurch gekennzeich­net, daß der das Querelement (7) bildende Querdraht einen größeren Durchmesser als die übrigen Querdrähte (5) aufweist.4. Reinforcement according to one or more of the preceding claims, characterized in that the cross wire forming the cross element (7) has a larger diameter than the other cross wires (5). 5. Armierung nach einem oder mehreren der vor­hergehenden Ansprüche, dadurch gekennzeich­net, daß der Querstab (9) den gleichen Durch­messer wie die Längsdrähte (4) aufweist.5. Reinforcement according to one or more of the preceding claims, characterized in that the cross bar (9) has the same diameter as the longitudinal wires (4). 6. Armierung nach einem oder mehreren der vor­hergehenden Ansprüche, dadurch gekennzeich­net, daß die Längsdrähte jeder Matte (1, 2, 3) nach innen gewölbt oder abgewinkelt sind.6. Reinforcement according to one or more of the preceding claims, characterized in that the longitudinal wires of each mat (1, 2, 3) are curved or angled inwards.
EP89118296A 1988-12-10 1989-10-03 Tying means for concrete works below ground Expired - Lifetime EP0373308B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118296T ATE91315T1 (en) 1988-12-10 1989-10-03 REINFORCEMENT FOR UNDERGROUND CONCRETE STRUCTURES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3841636A DE3841636A1 (en) 1988-12-10 1988-12-10 ARMORING FOR CONCRETE CONSTRUCTIONS UNDERGROUND
DE3841636 1988-12-10

Publications (3)

Publication Number Publication Date
EP0373308A2 true EP0373308A2 (en) 1990-06-20
EP0373308A3 EP0373308A3 (en) 1992-03-04
EP0373308B1 EP0373308B1 (en) 1993-07-07

Family

ID=6368877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118296A Expired - Lifetime EP0373308B1 (en) 1988-12-10 1989-10-03 Tying means for concrete works below ground

Country Status (4)

Country Link
EP (1) EP0373308B1 (en)
AT (1) ATE91315T1 (en)
DE (2) DE3841636A1 (en)
ZA (1) ZA898744B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105018A1 (en) * 2006-03-14 2007-09-20 Sebok Tamas Method and mould for casting or repearing columns
ITBZ20080042A1 (en) * 2008-09-26 2010-03-27 Arcosistem Di Zangari Vincenzo FORMWORK TO LOSE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT110527B (en) * 1927-07-20 1928-09-10 Bruno Dr Bauer Workpiece used to reinforce columns made of laced concrete.
FR2526465A1 (en) * 1982-05-06 1983-11-10 Standarm Metal reinforcement cage for reinforced concrete column - has two complementary halves hooked together at corner bars

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601355C2 (en) * 1976-01-15 1977-12-01 Dr. R. Fenne Gmbh & Co Eisen- Und Metallprodukte Kg, 4270 Dorsten Embedding mat for pit lining with high flexibility and a high tensile strength connection

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT110527B (en) * 1927-07-20 1928-09-10 Bruno Dr Bauer Workpiece used to reinforce columns made of laced concrete.
FR2526465A1 (en) * 1982-05-06 1983-11-10 Standarm Metal reinforcement cage for reinforced concrete column - has two complementary halves hooked together at corner bars

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105018A1 (en) * 2006-03-14 2007-09-20 Sebok Tamas Method and mould for casting or repearing columns
ITBZ20080042A1 (en) * 2008-09-26 2010-03-27 Arcosistem Di Zangari Vincenzo FORMWORK TO LOSE

Also Published As

Publication number Publication date
EP0373308A3 (en) 1992-03-04
ATE91315T1 (en) 1993-07-15
EP0373308B1 (en) 1993-07-07
DE58904872D1 (en) 1993-08-12
ZA898744B (en) 1990-08-29
DE3841636A1 (en) 1990-06-13

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