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DE939229C - Steel lattice girder, especially as reinforcement for reinforced concrete filler ceilings - Google Patents

Steel lattice girder, especially as reinforcement for reinforced concrete filler ceilings

Info

Publication number
DE939229C
DE939229C DEK10560A DEK0010560A DE939229C DE 939229 C DE939229 C DE 939229C DE K10560 A DEK10560 A DE K10560A DE K0010560 A DEK0010560 A DE K0010560A DE 939229 C DE939229 C DE 939229C
Authority
DE
Germany
Prior art keywords
ceilings
reinforcement
reinforced concrete
lattice girder
steel lattice
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
DEK10560A
Other languages
German (de)
Inventor
Willy Dipl-Ing Kaiser
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 DEK10560A priority Critical patent/DE939229C/en
Application granted granted Critical
Publication of DE939229C publication Critical patent/DE939229C/en
Expired legal-status Critical Current

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
    • E04C5/065—Light-weight girders, e.g. with precast parts
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • 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
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Landscapes

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

Description

Zur Verringerung des Gewichtes der Träger für Stahlbeton-Füllkörperdecken ist es bekannt, an Stelle der üblichen Walzstahl-Profilträger aus Band- und/oder Rundmaterial zusammengesetzte Träger zu verwenden und dabei den Trägersteg nach Art eines Gitters weitgehend aufzuteilen. Unter anderem ist es bekannt, den Untergurt eines derartigen Gitterträgers aus zwei Winkelschienen zu bilden, deren einander zugekehrte, aufrecht stehende Schenkel einzelne V- oder U-förmig zugeschnittene Flachstahlstreifen zwischen sich einschließen, die an abgebogenen Lappen den aus Bandmaterial bestehenden Obergurt aufnehmen. Nach einer anderen Ausbildung besteht der Steg aus einem in Zickzackförm gebogenen Rundstahl, der auf einen Streifen Bandstahl aufgesetzt ist und dessen freie Ecken durch einen geraden Rundstahl miteinander verbunden sind. Diese Träger haben nur eine geringe Seitensteifigkeit, die oft dem rauhen Betrieb auf den Baustellen vor dem Einbetonieren nicht gewachsen ist.To reduce the weight of the girders for reinforced concrete filling body ceilings, it is known to use girders composed of strip and / or round material instead of the usual rolled steel profile girders and largely to divide the girder web like a grid. Among other things, it is known to form the lower chord of such a lattice girder from two angle rails, the facing, upright legs of which enclose individual V- or U-shaped cut flat steel strips between them, which accommodate the upper chord made of strip material on bent tabs. According to another embodiment, the web consists of a round steel bent in a zigzag shape, which is placed on a strip of steel strip and whose free corners are connected to one another by a straight round steel. These girders only have a low level of lateral stiffness, which is often not up to the rough operation on the construction sites before they are set in concrete.

Die Erfindung betrifft eine neue Ausbildung eines stählernen Gitterträgers, . insbesondere als Bewehrung für Stahlbeton-Füllkörperdecken, die sich durch gute Seitensteifigkeit auszeichnet und leicht herstellbar ist. Erfindungsgemäß besteht bei einem stählernen Gitterträger der Untergurt aus zwei im Abstand voneinander liegenden Winkelblechen, wobei zwischen deren einander zugekehrten Schenkeln ein- in Zickzackform gebogener Winkelblechstrefen eingesetzt und auf diesen der Obergurt, ebenfalls als Winkelblech, aufgesetzt ist. Durch die Ausführung der Diagonalen und der Gurte in Winkelblech erhält der neue Träger eine gute Seiten- und Verwindungssteifigkeit.The invention relates to a new design of a steel lattice girder, . especially as reinforcement for reinforced concrete packing ceilings, which are characterized by good Lateral stiffness is characterized and is easy to manufacture. According to the invention there is in the case of a steel lattice girder, the lower chord consists of two spaced apart lying angle plates, with a Zigzag bent sheet metal strips are inserted and the top flange on top of them, is also attached as an angle plate. By executing the diagonals and The belts in the angle plate give the new beam good lateral and torsional stiffness.

Die neue Ausbildung ist nachstehend an Hand der Zeichnung näher erläutert. Es zeigt Fig. i eine Stirnansicht und Fig. 2 eine Seitenansicht.The new training is explained in more detail below with reference to the drawing. FIG. 1 shows a front view and FIG. 2 shows a side view.

Der Untergurt ist von zwei Winkelblechen ia, 1b gebildet, zwischen deren einander zugekehrten, aufrecht stehenden Schenkeln i. ein zickzackförmig gebogenes Winkelblech 2f eingeschweißt ist, das den ebenfalls von einem Winkelblech 3a gebildeten Obergurt trägt.The lower chord is formed by two angle plates ia, 1b, between their upright legs facing each other i. a zigzag curved one Angle plate 2f is welded, which is also formed by an angle plate 3a Top belt wears.

Claims (1)

PATENTANSPRUCH: Stählerner Gitterträger, insbesondere als Bewehrung für Stahlbeton-Füllkörperdecken, dadurch gekennzeichnet; daß der Untergurt aus zwei im Abstand voneinander liegenden Winkelblechen besteht, daß zwischen deren einander zugekehrten Schenkeln ein in Zickzackform gebogener Winkelblechstreifen eingesetzt und daß auf diesen der Obergurt, ebenfalls als Winkelblech, aufgesetzt ist. Angezogene Druckschriften:. »Die Bauwirtschaft«, Heft 18A950, S. io; österreichische Patentschrift Nr. 137 162; deutsche Patentschrift Nr. 216 6o4. PATENT CLAIM: Steel lattice girder, in particular as reinforcement for reinforced concrete packing ceilings, characterized; that the lower chord consists of two angled sheets at a distance from one another, that a zigzag bent sheet-metal strip is inserted between their facing legs and that the upper chord, also as an angular sheet, is placed on this. Referred publications :. "Die Bauwirtschaft", issue 18A950, p. Io; Austrian Patent No. 137 162; German patent specification No. 216 6o4.
DEK10560A 1951-07-10 1951-07-10 Steel lattice girder, especially as reinforcement for reinforced concrete filler ceilings Expired DE939229C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK10560A DE939229C (en) 1951-07-10 1951-07-10 Steel lattice girder, especially as reinforcement for reinforced concrete filler ceilings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK10560A DE939229C (en) 1951-07-10 1951-07-10 Steel lattice girder, especially as reinforcement for reinforced concrete filler ceilings

Publications (1)

Publication Number Publication Date
DE939229C true DE939229C (en) 1956-02-16

Family

ID=7212925

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK10560A Expired DE939229C (en) 1951-07-10 1951-07-10 Steel lattice girder, especially as reinforcement for reinforced concrete filler ceilings

Country Status (1)

Country Link
DE (1) DE939229C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216604C (en) *
AT137162B (en) * 1932-02-17 1934-04-10 Andreas Gisshammer Truss used as reinforcement for reinforced concrete structures.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE216604C (en) *
AT137162B (en) * 1932-02-17 1934-04-10 Andreas Gisshammer Truss used as reinforcement for reinforced concrete structures.

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