DE3541310A1 - Reinforcement for reinforced-concrete structural parts - Google Patents

Reinforcement for reinforced-concrete structural parts

Info

Publication number
DE3541310A1
DE3541310A1 DE19853541310 DE3541310A DE3541310A1 DE 3541310 A1 DE3541310 A1 DE 3541310A1 DE 19853541310 DE19853541310 DE 19853541310 DE 3541310 A DE3541310 A DE 3541310A DE 3541310 A1 DE3541310 A1 DE 3541310A1
Authority
DE
Germany
Prior art keywords
reinforcement
reinforced
bars
structural parts
steel
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.)
Ceased
Application number
DE19853541310
Other languages
German (de)
Inventor
Erfinder Wird Nachtraeglich Benannt Der
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.)
DROESE SIEGFRIED DR ING
Original Assignee
DROESE SIEGFRIED DR ING
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 DROESE SIEGFRIED DR ING filed Critical DROESE SIEGFRIED DR ING
Priority to DE19853541310 priority Critical patent/DE3541310A1/en
Publication of DE3541310A1 publication Critical patent/DE3541310A1/en
Ceased legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

A combination of a steel profile 1, provided with anchor structures 2 on the bearing members, and additional bars comprising steel bars or fibrous composite bars 3 is arranged as tension reinforcement of reinforced-concrete structural parts, for example reinforced-concrete beams. The anchor structures are designed such that the additional bars are anchored as a result of the concrete being pressed transversely. <IMAGE>

Description

Die Erfindung betrifft eine Bewehrungsform für Stahl­ betonbauteile, insbesondere Stahlbetonbalken, bei denen die Zugbewehrung aus einer Kombination eines Stahlprofils und geeigneten Zulagen gebildet wird.The invention relates to a reinforcement form for steel concrete components, especially reinforced concrete beams, at which the tensile reinforcement from a combination of one Steel profile and suitable allowances is formed.

Eine derartige Bewehrungsform ist von großem prakti­ schem Interesse, da solcherart bewehrte Bauteile sehr wirtschaftlich hergestellt werden können und es mög­ lich wird, als Zulagebewehrung auch Verbundstäbe aus in Kunstharz eingebetteten Glasfasern, Kohlefasern o.ä. zu verwenden. Die Verwendung derartiger Stäbe im Stahlbetonbau gilt bisher in der Fachwelt als nicht sinnvoll, da das Problem der Verankerung dieser Stäbe bisher nicht gelöst ist.Such a form of reinforcement is very practical chemical interest, because such reinforced components can be produced economically and it is possible composite bars are also used as additional reinforcement glass fibers embedded in synthetic resin, carbon fibers or similar to use. The use of such rods in the field of reinforced concrete construction has so far not been considered by experts useful since the problem of anchoring these rods has not yet been resolved.

Neben der üblichen Bewehrungsform von biegebeanspruch­ ten Stahlbetonbauteilen mit Rundstählen wurde schon früher vorgeschlagen, als Bewehrung Formstähle einzu­ setzen, wobei als Verbundmittel über die Bauteillänge verteilt angeordnet aufgeschweißte Stahlteile, Kopf­ bolzendübel o.ä. vorgeschlagen wurden. Ein derart be­ wehrtes Bauteil kann als Sonderfall eines Verbundträ­ gers angesehen werden. Die Verwendung von Verbundstäben, insbesondere Glasfaser-Verbundstäben, als Bewehrung von Stahlbetonbauteilen wurde ebenfalls bereits vorgeschla­ gen. Eine praktische Anwendung scheiterte jedoch an der fehlenden Möglichkeit, diese Stäbe sowohl wirtschaft­ lich tragbar - also mit einfachen Mitteln - als auch ausreichend sicher zu verankern. Vorgeschlagen wurden u.a. Klemmverankerungen, Keilverankerungen, Profilie­ rung der Stäbe, Eingießen mit Kunstharz in Ankerhülsen. Derartige Verankerungen sind jedoch aufwendig her­ zustellen und/oder schädigen die Struktur der Ver­ bundstäbe, so daß die Tragfähigkeit herabgesetzt wird. Der Erfindung liegt die Aufgabe zugrunde, die Bewehrung von Stahlbetonbauteilen so auszubilden, daß gegenüber bisherigen Ausführungen eine wirt­ schaftlichere Herstellung sowie die Verwendung von Verbundstäben als Zulagebewehrung ermöglicht wird. Dies wird - wie in der Zeichnung für einen über ein Feld gespannten Stahlbetonbalken dargestellt - durch eine Bewehrung aus einem Stahl-Walzprofil 1, bei­ spielsweise einem U-Profil, das an den Auflagern mit geeigneten Konstruktionen 2, beispielsweise aus Stahl zusammengeschweißten Ankerkonstruktion, versehen ist, die geeignet sind, gleichzeitig die aus der Biegewirkung entstehende Zuggurtkraft in das Walzprofil einzuleiten und außerdem infolge geeigneter Formgebung auch glatte Zulagestäbe der Zugbewehrung, insbesondere auch Verbundstäbe, zu verankern. Dies wird bevorzugt durch konische Formgebung einer zur Feldmitte des Balkens hin offenen Verankerungskon­ struktion erreicht. Die infolge der Balkenbelastung, hier als Einzellast 3 dargestellt, im Beton des Bal­ kens sich ausbildende Druckstrebe 4 ruft innerhalb der Verankerungskonstruktion Querspannungen in einer Größe hervor, daß dadurch die Zulagestäbe 5 ausrei­ chend verankert werden.In addition to the usual form of reinforcement of bending-stressed reinforced concrete components with round steel, it was previously proposed to use shaped steel as reinforcement, with welded steel parts, head bolt anchors or the like distributed over the component length. were proposed. Such a reinforced component can be regarded as a special case of a composite beam. The use of composite bars, in particular glass fiber composite bars, as reinforcement for reinforced concrete components has also already been proposed. However, a practical application failed because of the lack of the possibility of anchoring these bars both economically - with simple means - and sufficiently securely. Among others, clamp anchors, wedge anchors, profiling of the rods, casting with synthetic resin in anchor sleeves were proposed. However, such anchors are expensive to manufacture and / or damage the structure of the United bundles, so that the load capacity is reduced. The invention has for its object to design the reinforcement of reinforced concrete components so that a more economical production and the use of composite bars as additional reinforcement is possible compared to previous versions. This is - as shown in the drawing for a reinforced concrete beam stretched over a field - by a reinforcement made of a rolled steel profile 1 , for example a U-profile, which is provided on the supports with suitable constructions 2 , for example anchoring construction welded together from steel , which are suitable for simultaneously introducing the tensile belt force resulting from the bending action into the rolled profile and also for anchoring smooth additional bars of the tensile reinforcement, in particular also composite bars, as a result of suitable shaping. This is preferably achieved by conical shaping of an anchoring structure that is open toward the field center of the beam. The resulting due to the beam load, shown here as a single load 3 , in the concrete of the Bal kens pressure strut 4 causes transverse stresses in a size within the anchoring structure that thereby the additional bars 5 are adequately anchored.

Claims (1)

Bewehrung für Stahlbetonbauteile, dadurch gekennzeich­ net, daß zur Aufnahme der Zugkräfte ein Stahlprofil mit geeigneten Zulagen wie Stabstählen, Glasfaser-Verbund­ stäben, Kohlefaser-Verbundstäben verwendet wird, diese Zulagen an den Auflagern des Bauteils verankert durch geeignete Konstruktionen, die eine Querpressung des Betons auf die Zulagen bewirken.Reinforcement for reinforced concrete components, characterized net gekennzeich that for recording of the tensile forces carbon fiber composite rods is used, a steel profile with appropriate supplements such as steel bars, rods, glass-fiber composite, these supplements at the supports of the component anchored by means of suitable constructions that on a transversal compression of the concrete effect the allowances.
DE19853541310 1985-11-22 1985-11-22 Reinforcement for reinforced-concrete structural parts Ceased DE3541310A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853541310 DE3541310A1 (en) 1985-11-22 1985-11-22 Reinforcement for reinforced-concrete structural parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853541310 DE3541310A1 (en) 1985-11-22 1985-11-22 Reinforcement for reinforced-concrete structural parts

Publications (1)

Publication Number Publication Date
DE3541310A1 true DE3541310A1 (en) 1987-06-04

Family

ID=6286564

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853541310 Ceased DE3541310A1 (en) 1985-11-22 1985-11-22 Reinforcement for reinforced-concrete structural parts

Country Status (1)

Country Link
DE (1) DE3541310A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1102595A (en) * 1954-04-08 1955-10-24 Method of execution of a beam and beam obtained by this method
DE1509028A1 (en) * 1963-10-07 1969-02-27 Texas Industries Inc Precast component

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1102595A (en) * 1954-04-08 1955-10-24 Method of execution of a beam and beam obtained by this method
DE1509028A1 (en) * 1963-10-07 1969-02-27 Texas Industries Inc Precast component

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8181 Inventor (new situation)

Free format text: ERFINDER IST ANMELDER

8131 Rejection