DE522510C - Compression rod made of a tubular steel jacket and a concrete core - Google Patents

Compression rod made of a tubular steel jacket and a concrete core

Info

Publication number
DE522510C
DE522510C DEM107494D DEM0107494D DE522510C DE 522510 C DE522510 C DE 522510C DE M107494 D DEM107494 D DE M107494D DE M0107494 D DEM0107494 D DE M0107494D DE 522510 C DE522510 C DE 522510C
Authority
DE
Germany
Prior art keywords
core
concrete
steel pipe
concrete core
steel jacket
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.)
Expired
Application number
DEM107494D
Other languages
German (de)
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
Publication date
Priority to DEM107494D priority Critical patent/DE522510C/en
Application granted granted Critical
Publication of DE522510C publication Critical patent/DE522510C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/30Columns; Pillars; Struts
    • E04C3/34Columns; 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
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08Members specially adapted to be used in prestressed constructions

Landscapes

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

Description

Druckstab aus einem Stahlrohrmantel und einem Kern aus Beton Man hat bereits stabförmige Bauteile aus einem mit Beton oder einem ähnlichen Baustoff gefüllten Stahlrohr verwendet. Setzt man diese Stäbe einem Längsdruck aus, so verteilt sich ihre Gesamtbeanspruchung auf den Stahlmantel und den Betonkern im Verhältnis ihrer Ouerschnitte und Elastizitätskoeffizienten. Da der Elastizitätskoeffizient des ummantelten Betons ungefähr % desjenigen des Stahles ist, beträgt, wenn der Stahl bis zu seiner Sicherheitsgrenze beansprucht wird, in der Regel die Beanspruchung des Betons nur einen geringen Bruchteil der für ihn zulässigen Belastung.Compression rod made of a tubular steel jacket and a core made of concrete already rod-shaped components made of one filled with concrete or a similar building material Steel pipe used. If these rods are subjected to longitudinal pressure, they distribute themselves their total stress on the steel jacket and the concrete core in relation to their Cross sections and coefficients of elasticity. As the coefficient of elasticity of the sheathed Concrete is about% that of steel, when the steel is up to its The safety limit is stressed, usually the stress on the concrete only a small fraction of the load that is permissible for him.

Die Erfindung verfolgt den Zweck, die Widerstandsfähigkeit eines solchen Stabes gegen Längsdruck erheblich zu vergrößern. Zu diesem Zwecke wird der Stahlmantel durch einen Längszug einer elastischen Vorspannung im Sinne einer Dehnung unterworfen. Dabei wird der entsprechende Gegendruck mittels an den Enden des Rohres angeordneter Spannvorrichtungen, wie Schraub-Stöpsel, von dem abgebundenen Betonkern aufgenommen und das gegenseitige Anhaften des Mantels und Kernes durch einen auf die Innenfläche des Rohres aufgebrachten nachgiebigen Überzug verhindert.The invention has the purpose of improving the resistance of such To enlarge the rod considerably against longitudinal pressure. For this purpose, the steel jacket subjected to elastic pretensioning in the sense of elongation by a longitudinal pull. In doing so, the corresponding counter pressure is arranged at the ends of the pipe Tensioning devices, such as screw plugs, taken up by the set concrete core and the cladding and core adhering to each other by one on the inner surface The flexible coating applied to the pipe is prevented.

Infolge dieser elastischen Vordehnung des Mantels kann man den Betonkern im Verhältnis zum Mantel höher belasten; nämlich um den Druck, den. er aufnimmt, während der Mantel wieder auf seine normale Länge und die Belastung Null zurückgeht.As a result of this elastic pre-stretching of the jacket, the concrete core can be removed load higher in relation to the coat; namely about the pressure that. he records while the jacket returns to its normal length and zero stress.

Die Zeichnung veranschaulicht die Erfindung an zwei Ausführungsbeispielen.The drawing illustrates the invention using two exemplary embodiments.

Abb. r ist ein Längsschnitt durch ein gefülltes Rohr mit an den Enden eingesetzten Schraubstöpseln.Fig.r is a longitudinal section through a filled tube with at the ends inserted screw plugs.

Abb. 2 zeigt ein aus drei Bogenstücken bestehendes Ringrohr und Abb.3 einen Schnitt durch eine Verbindungsstelle dieses Ringrohres.Fig. 2 shows an annular pipe consisting of three bends and Fig.3 a section through a junction of this ring tube.

Die Innenwand des Stahlrohres i (Abb. i) ist mit einem Schmiermittelüberzug 2 versehen, der das Anhaften des Betonkernes 3 an der Rohrwand verhindert. Das eine Ende des Rohres i ist durch einen vollen Gewindestöpsel 4 verschlossen, das andere Ende durch einen Gewindestöpsel 5 mit Einspritzkanal 6. Innerhalb der Stöpsel sind Scheiben 7 und 8 eingesetzt, von denen letztere mit einem mittleren Loch entsprechend dem Kanal 6 des Stöpsels 5 versehen ist. Die Scheiben 7 und 8 erleichtern das Einschrauben der Stöpsel, da sie das Eintreten von Füllstoff in das Gewinde verhindern. Die Scheiben kommen in Fortfall, wenn das Rohr mit einem pulverförmigen Stoff gefüllt wird.The inner wall of the steel pipe i (Fig. I) is coated with a lubricant 2, which prevents the concrete core 3 from sticking to the pipe wall. The one The end of the tube i is closed by a full threaded plug 4, the other End through a threaded plug 5 with injection channel 6. Inside the plug Discs 7 and 8 are used, the latter with a central hole accordingly the channel 6 of the plug 5 is provided. The washers 7 and 8 make it easier to screw in the plug as they prevent filler from entering the thread. The disks do not apply if the tube is filled with a powdery substance.

Der geschlossene Ring gemäß Abb. 2 ist im wesentlichen als waagerechte Bewehrung für Schachtauskleidungen gedacht. Er besteht aus drei Rohrbögen 9, io und i i, die durch Schraubmuffen i2, 13, 14 mit Rechts- und Linksgewinde vereinigt sind. jede dieser Muffen ist mit einem Einspritzloch 15 (Abb. 3) versehen. Durch Anziehen der Schraubmuffen wird das Stahlrohr unter Zugspannung und der Kern unter Druckspannung gesetzt.The closed ring according to Fig. 2 is essentially horizontal Reinforcement intended for manhole linings. It consists of three pipe bends 9, io and i i, which are united by screw sockets i2, 13, 14 with right-hand and left-hand threads are. each of these sleeves is provided with an injection hole 15 (Fig. 3). By Tightening the screw sockets puts the steel pipe under tension and the core under Compressive stress set.

Claims (2)

PATENTANSPRÜCHE: i. Druckstab aus einem Stahlrohrmantel und einem Kern aus Beton oder ähnlichen Baustoffen, dadurch gekennzeichnet, daß das Stahlrohr durch einen Längszug unter Zugspannung gesetzt ist, dessen entsprechender Gegendruck mittels an den Enden des Rohres angeordneter Spannvorrichtungen, wie Schraubstöpsel, von dem abgebundenen Betonkern aufgenommen wird, wobei das gegenseitige Anhaften des Rohres und Kernes durch einen auf die Innenfläche des Rohres aufgebrachten nachgiebigen Überzug verhindert ist. PATENT CLAIMS: i. Pressure rod made of a tubular steel jacket and a Core made of concrete or similar building materials, characterized in that the steel pipe is placed under tensile stress by a longitudinal pull, its corresponding counter pressure by means of clamping devices, such as screw plugs, arranged at the ends of the pipe, is absorbed by the set concrete core, whereby the mutual adhesion of the tube and core by a resilient applied to the inner surface of the tube Coating is prevented. 2. Druckstab nach Anspruch i in geschlossener Ringform, dadurch gekennzeichnet, daß das Stahlrohr in mehrere Abschnitte unterteilt ist, die untereinander durch Schraubmuften verbunden sind, durch deren Anziehen das Stahlrohr unter Zugspannung und der Kern unter Druckspannung gesetzt ist.2. Pressure rod according to claim i in a closed ring shape, characterized in that the steel pipe is divided into several sections, which are connected to each other by screw sockets, by tightening the steel pipe is under tensile stress and the core is under compressive stress.
DEM107494D Compression rod made of a tubular steel jacket and a concrete core Expired DE522510C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM107494D DE522510C (en) Compression rod made of a tubular steel jacket and a concrete core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM107494D DE522510C (en) Compression rod made of a tubular steel jacket and a concrete core

Publications (1)

Publication Number Publication Date
DE522510C true DE522510C (en) 1931-04-10

Family

ID=7326193

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM107494D Expired DE522510C (en) Compression rod made of a tubular steel jacket and a concrete core

Country Status (1)

Country Link
DE (1) DE522510C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056348B (en) * 1955-11-08 1959-04-30 Mannesmann Ag Support made of a tubular steel jacket and a core made of concrete od
DE1175412B (en) * 1956-07-30 1964-08-06 Johannes Dieter Gollnow Dr Ing Process for manufacturing components with internal excess pressure
DE1179690B (en) * 1963-02-13 1964-10-15 Georg Finsterhoelzl Process for subsequent reinforcement of solid floors with cavities and for prestressing solid components
US3948010A (en) * 1971-12-17 1976-04-06 Sonneville Roger P Reinforcing device for an element of prestressed concrete
US4612748A (en) * 1985-01-14 1986-09-23 Arnold Ronald G Polymer concrete block
US4691488A (en) * 1981-08-11 1987-09-08 Oy Wartsila Ab Method for producing a concrete-filled steel body for suppressing vibrations
US4724639A (en) * 1985-01-17 1988-02-16 Vsl International Ag Prestressing anchor arrangement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056348B (en) * 1955-11-08 1959-04-30 Mannesmann Ag Support made of a tubular steel jacket and a core made of concrete od
DE1175412B (en) * 1956-07-30 1964-08-06 Johannes Dieter Gollnow Dr Ing Process for manufacturing components with internal excess pressure
DE1179690B (en) * 1963-02-13 1964-10-15 Georg Finsterhoelzl Process for subsequent reinforcement of solid floors with cavities and for prestressing solid components
US3948010A (en) * 1971-12-17 1976-04-06 Sonneville Roger P Reinforcing device for an element of prestressed concrete
US4691488A (en) * 1981-08-11 1987-09-08 Oy Wartsila Ab Method for producing a concrete-filled steel body for suppressing vibrations
US4612748A (en) * 1985-01-14 1986-09-23 Arnold Ronald G Polymer concrete block
US4724639A (en) * 1985-01-17 1988-02-16 Vsl International Ag Prestressing anchor arrangement

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