DE3614392A1 - Prefabricated reinforced-concrete beam - Google Patents

Prefabricated reinforced-concrete beam

Info

Publication number
DE3614392A1
DE3614392A1 DE19863614392 DE3614392A DE3614392A1 DE 3614392 A1 DE3614392 A1 DE 3614392A1 DE 19863614392 DE19863614392 DE 19863614392 DE 3614392 A DE3614392 A DE 3614392A DE 3614392 A1 DE3614392 A1 DE 3614392A1
Authority
DE
Germany
Prior art keywords
curved
reinforced
concrete beam
prefabricated
concreted
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
DE19863614392
Other languages
German (de)
Inventor
Wilhelm Patt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19863614392 priority Critical patent/DE3614392A1/en
Publication of DE3614392A1 publication Critical patent/DE3614392A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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

The fabrication of curved reinforced-concrete beams requires complex and costly shutterings. The novel development provides a straight, prefabricated reinforced-concrete beam which can be deformed to give a curved beam without using special shutterings. The prefabricated straight reinforced-concrete beam exhibits predetermined bending points which are formed by shuttering parts (2) which are concreted in at regular intervals. In order to produce a curved beam, the beam (1) is mounted on a framework with the desired curvature. After cutting through the top steel reinforcing member (3) in the region of the predetermined bending points and pulling out the shuttering parts (2), the beam (1) adapts to the curvature of the framework, the bottom steel reinforcing member (4) being curved correspondingly. The wedge-shaped cavities, resulting from the removal of the shuttering parts (2), at the predetermined bending points are concreted after reinforcement has been introduced. The reinforced-concrete beam can be used for erecting different types of structures in building construction and civil engineering. <IMAGE>

Description

Die Erfindung betrifft Stahlbetonträger mit Ober- und Untergurt aus Bewehrungseisen.The invention relates to reinforced concrete beams with top and Reinforcing iron lower chord.

Die Fertigung gekrümmter Stahlbetonträger erfordert aufwendige und teure Schalungen.The production of curved reinforced concrete beams requires complex and expensive formwork.

Aufgabe der Erfindung ist die Entwicklung eines geraden, vorgefertigten Stahlbetonträgers, der ohne die Verwendung besonderer Schalungen zu einem gekrümmten Träger umgestaltet werden kann.The object of the invention is the development of a straight, prefabricated reinforced concrete beam, which without the use special formwork transformed into a curved beam can be.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale im Kennzeichen des Patentanspruchs.This object is achieved by the Features in the characterizing part of the patent claim.

Die Erfindung zeichnet sich dadurch aus, die gestellte Aufgabe auf einfache und zweckmäßige Weise zu lösen.The invention is characterized by the posed To solve the task in a simple and practical way.

Die Erfindung ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels im einzelnen erläutert. Es zeigtThe invention is based on one in the Drawing shown embodiment in detail explained. It shows

Fig. 1 einen Teillängsschnitt durch den Stahlbetonträger, Fig. 1 shows a partial longitudinal section of the reinforced concrete beam,

Fig. 2 einen Querschnitt im Bereich einer vorbereiteten Knickstelle des Stahlbetonträgers nach Linie II-II der Fig. 1 und Fig. 2 shows a cross section in the region of a prepared kink of the reinforced concrete beam according to line II-II of Fig. 1 and

Fig. 3 einen Teillängsschnitt durch eine vorbereitete Knickstelle des Trägers nach der Verformung. Fig. 3 shows a partial longitudinal section through a prepared kink of the carrier after the deformation.

Der in einer üblichen Schalung vorgefertigte, gerade Stahlbetonträger (1) nach den Fig. 1 und 2 weist vorbereitete Knickstellen auf, die durch in gleichen Abständen einbetonierte Schalteile (2) gebildet werden. Der Stahlbetonträger (1) kann als gerader Träger bei der Erstellung von Bauwerken unterschiedlicher Art eingesetzt werden. The prefabricated in a conventional formwork, straight reinforced concrete beam ( 1 ) according to FIGS. 1 and 2 has prepared kinks, which are formed by formwork parts ( 2 ) concreted in at equal intervals. The reinforced concrete beam ( 1 ) can be used as a straight beam in the construction of buildings of various types.

Werden gekrümmte, z.B. parabelförmige Stahlbetonträger benötigt, kann der gerade Träger (1) auf einfache Weise entsprechend umgeformt werden. Zu diesem Zweck wird der Träger (1) auf einem Gerüst mit der Krümmung des herzustellenden Trägers gelagert. Nach Durchtrennen des oberen Bewehrungseisens (3) im Bereich der vorbereiteten Knickstellen und Herausziehen der Schalteile (2) paßt sich der Träger (1) aufgrund seines Eigengewichts der Krümmung des Gerüstes an, wobei das untere Bewehrungseisen (4) entsprechend gekrümmt wird. Die durch das Entfernen der Schalteile (2) entstehenden keilförmigen Hohlräume an den vorbereiteten Knickstellen werden nach Einbringen einer Bewehrung ausbetoniert.If curved, for example parabolic, reinforced concrete beams are required, the straight beam ( 1 ) can easily be shaped accordingly. For this purpose, the carrier ( 1 ) is mounted on a frame with the curvature of the carrier to be manufactured. After cutting through the upper reinforcing iron ( 3 ) in the area of the prepared bends and pulling out the formwork parts ( 2 ), the beam ( 1 ) adapts to the curvature of the frame due to its own weight, the lower reinforcing iron ( 4 ) being curved accordingly. The wedge-shaped cavities resulting from the removal of the formwork parts ( 2 ) at the prepared kinks are concreted after the introduction of reinforcement.

Claims (1)

Vorgefertigter Stahlbetonträger mit Ober- und Untergurt, gekennzeichnet durch in gleichen Abständen einbetonierte, vorbereitete Knickstellen bildende Schalteile (2) zur Herstellung eines gekrümmten Trägers durch Herausziehen der Schalteile (2) nach dem Durchtrennen des bzw. der oberen Bewehrungseisens bzw. Eisen (3) aus dem auf einem Gerüst mit der Krümmung des herzustellenden Trägers lagernden, vorgefertigten Träger (1) und Ausbetonieren der durch das Entfernen der Schalteile (2) entstehenden keilförmigen Hohlräume nach Einbringen einer Bewehrung.Prefabricated reinforced concrete girder with upper and lower chord, characterized by formwork parts ( 2 ) concreted in at equal intervals and prepared to form kinks for the production of a curved girder by pulling out the formwork parts ( 2 ) after cutting through the upper reinforcing iron or iron ( 3 ) the prefabricated support ( 1 ), which is supported on a scaffold with the curvature of the support to be manufactured, and concreting the wedge-shaped cavities resulting from the removal of the formwork parts ( 2 ) after the introduction of reinforcement.
DE19863614392 1986-04-28 1986-04-28 Prefabricated reinforced-concrete beam Ceased DE3614392A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863614392 DE3614392A1 (en) 1986-04-28 1986-04-28 Prefabricated reinforced-concrete beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863614392 DE3614392A1 (en) 1986-04-28 1986-04-28 Prefabricated reinforced-concrete beam

Publications (1)

Publication Number Publication Date
DE3614392A1 true DE3614392A1 (en) 1987-11-26

Family

ID=6299732

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863614392 Ceased DE3614392A1 (en) 1986-04-28 1986-04-28 Prefabricated reinforced-concrete beam

Country Status (1)

Country Link
DE (1) DE3614392A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094490A (en) * 2011-03-11 2011-06-15 湖南大学 Partially confined concrete beam

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312230B (en) * 1971-06-07 1973-12-27 Katzenberger Helmut Precast concrete part
DE3129347A1 (en) * 1981-07-24 1983-02-10 Richard Dipl.-Ing. 8332 Massing Laumer Process for producing and mounting roof frames or frame parts consisting of reinforced concrete, and a roof frame or frame part of this type

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312230B (en) * 1971-06-07 1973-12-27 Katzenberger Helmut Precast concrete part
DE3129347A1 (en) * 1981-07-24 1983-02-10 Richard Dipl.-Ing. 8332 Massing Laumer Process for producing and mounting roof frames or frame parts consisting of reinforced concrete, and a roof frame or frame part of this type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094490A (en) * 2011-03-11 2011-06-15 湖南大学 Partially confined concrete beam

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Legal Events

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8120 Willingness to grant licenses paragraph 23
8110 Request for examination paragraph 44
8131 Rejection