DE3541310A1 - Reinforcement for reinforced-concrete structural parts - Google Patents
Reinforcement for reinforced-concrete structural partsInfo
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; 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
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)
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)
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 |
-
1985
- 1985-11-22 DE DE19853541310 patent/DE3541310A1/en not_active Ceased
Patent Citations (2)
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 |