DE975557C - Steel light beam as reinforcement of concrete structures - Google Patents
Steel light beam as reinforcement of concrete structuresInfo
- Publication number
- DE975557C DE975557C DEK5384A DEK0005384A DE975557C DE 975557 C DE975557 C DE 975557C DE K5384 A DEK5384 A DE K5384A DE K0005384 A DEK0005384 A DE K0005384A DE 975557 C DE975557 C DE 975557C
- Authority
- DE
- Germany
- Prior art keywords
- strips
- reinforcement
- concrete structures
- lightweight steel
- light beam
- 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
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
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web 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
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
- E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several 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
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
- E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
-
- 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
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Rod-Shaped Construction Members (AREA)
Description
Die Erfindung betrifft einen Stahlleichtträger als Bewehrung von Betonkonstruktionen, der aus zwei mit Abstand nebeneinander angeordneten profilierten Blechen besteht, die durch aus den Stegen geschnittene, nach innen gebogene Streifen miteinander verbunden sind.The invention relates to a lightweight steel beam as reinforcement of concrete structures, which consists of two profiled sheets arranged at a distance from one another, through which the webs cut, inwardly curved strips are connected to each other.
Bei einer bekannten Ausbildung dieser Art sind aus den Stegen der Blechprofile Z-förmig gebogene Zungen ausgestanzt, die an den freien Enden miteinander verbunden sind. Diese ausgeschnittenen und abgebogenen Zungen führen zu einer Schwächung des Trägerquerschnittes und lassen zudem eine Verschiebung der beiden Blechprofile in Längsrichtung gegeneinander zu.In a known design of this type, the sheet metal profiles are bent into a Z shape from the webs Tongues punched out, which are connected to one another at the free ends. These cut out and bent tongues lead to a weakening of the carrier cross-section and also leave a shift of the two sheet metal profiles in the longitudinal direction against each other.
Demgegenüber sind nach der Erfindung bei einem Stahlleichtträger der vorgenannten Art die Streifen in Trägerlängsrichtung ausgeschnitten, spitzwinklig ausgebogen und mit den Stegen längs durchgehend kraftschlüssig verbunden. Die Streifen sind dabei vorteilhaft durch zwei parallele längsgeführte Schnitte gebildet, nach innen ausgebaucht und jeweils mit einem gegenüberliegenden Streifen verbunden. Auch können die Streifen durch zwei parallele, längsgeführte Schnitte und einen quergeführten Schnitt gebildet sein, wobei die freien Enden der Streifen an dem jeweils gegenüberliegenden Steg befestigt sind. Durch diese Ausbildung tritt keine Schwächung des Trägerquerschnittes ein. Die ihn bildenden profilierten Bleche sind fest und unnachgiebig durch die Stege miteinander verbunden. Es wird ferner erreicht, daß der zwischen die beiden profilierten Bleche eingefüllte Beton glatt zwischen diesen hindurchfallen kann, so daß sich im Bereich des Trägers keine Hohlräume in dem Beton bilden können.In contrast, according to the invention, in a lightweight steel beam of the aforementioned type, the strips Cut out in the longitudinal direction of the carrier, bent at an acute angle and continuous with the webs positively connected. The strips are advantageous here by two parallel, longitudinally guided Sections formed, bulged inwards and each connected with an opposite strip. The strips can also be cut through two parallel, longitudinal cuts and one cross-cut Be formed cut, the free ends of the strips at the opposite Bridge are attached. As a result of this design, there is no weakening of the cross-section of the carrier a. The profiled sheets forming it are firmly and rigidly connected to one another by the webs. It is also achieved that the poured between the two profiled sheets of concrete can fall smoothly between these so that there are no cavities in the area of the carrier can form the concrete.
Die neue Ausbildung ist nachstehend an Hand der Zeichnung näher erläutert. Es zeigenThe new training is explained in more detail below with reference to the drawing. Show it
Abb. ιa bis ic eine Ausführungsform mit durch zwei parallele längsgeführte Schnitte gebildeten Streifen in einem Schnitt und zwei Ansichten,Fig. Ιa to ic an embodiment with through two parallel longitudinal cuts formed strips in one cut and two views,
Abb. 2 a bis 2 c eine zweite Ausführungsform mit ausgeschnittenen Zungen in einem Schnitt und zwei Ansichten,Fig. 2 a to 2 c a second embodiment with cut out tongues in one section and two views,
Abb. 3 einen Querschnitt durch eine Geschoß-♦5 decke unter Verwendung des Trägers nach Abb. 1. Der Träger nach den Abb. 1 a bis 1 c zeigt zwei Bandstahlprofile 1, die am unteren Rand rechtwinklig abgebogene Flansche 2 und oben einen im stumpfen Winkel abgekanteten Rand 3 aufweisen. In die Stegbleche 1 sind Lamellen 4 eingeschnitten, die nach innen durchgestreckt und mit den entsprechenden Lamellen des gegenüberliegenden Blechprofils auf bekannte Art, z. B. durch Punkt- oder Raupenschweißung, Nietung, Falzung oder mittels Klammern, fest verbunden sind. Wie die Draufsicht zeigt, wird damit eine gitterförmige Verspannung beider Profile erzielt. Zur Versteifung des Stegbleches sind Querwellen 4 a eingeprägt.Fig. 3 shows a cross-section through a floor ceiling using the girder according to Fig. 1. The carrier according to Fig. 1 a to 1 c shows two steel strip profiles 1, which are at right angles at the bottom have bent flanges 2 and at the top an edge 3 bent at an obtuse angle. In the web plates 1 slats 4 are cut, which stretched inward and with the corresponding Slats of the opposite sheet metal profile in a known manner, for. B. by dot or Bead welding, riveting, folding or by means of clamps, are firmly connected. Like the top view shows, a grid-like bracing of both profiles is achieved. To stiffen the web plate are transverse waves 4 a stamped.
In den Abb. 2 a bis 2 c sind an Stelle der eingeschnittenen und gestreckten Lamellen Zungen 5 ausgestanzt, die zum gegenüberliegenden Stegblech abgebogen und mit diesem fest verbunden sind.In Figs. 2 a to 2 c, tongues 5 are shown instead of the incised and stretched lamellae punched out, which are bent to the opposite web plate and firmly connected to this.
Bei der Verwendung als Balkenarmierung für Montagedecken bilden, wie in Abb. 3 beispielsweise gezeigt ist, die auf den unteren Flanschen zweier Leichtstahlträger aufliegenden Hohlkörper 8 die Füllung zwischen zwei Doppelträgern und zugleich die Schalung für den nach der Montage einzubringenden Ortbeton, in den die Leichtstahlträger als Armierung eingehen.When used as beam reinforcement for assembly ceilings, as in Fig. 3 for example is shown, the hollow body 8 resting on the lower flanges of two light steel girders Filling between two double girders and at the same time the formwork for the one to be brought in after assembly In-situ concrete, in which the light steel girders are used as reinforcement.
In Abb. 3 ist ein Füllkörper 8 gezeigt, der eine die ganze untere Trägerbreite unterfassende Fußleiste 9 aufweist. Der nur schmale Schlitz zwischen den Trägerflanschen und Fußleisten kann sich nur deshalb mit Beton füllen, weil zwischen den auf Abstand gehaltenen Blechprofilen 1 genügend Raum für den Durchtritt des Betons frei ist.In Fig. 3 a filler body 8 is shown, which has a skirting board that encompasses the entire lower beam width 9 has. The only narrow slot between the support flanges and baseboards can only be therefore fill with concrete, because there is enough space between the sheet metal profiles 1, which are kept at a distance is free for the concrete to pass through.
Die im Blechprofil mit Hilfe der durchgedrückten Lamellen oder abgebogenen Zungen entstehenden rechteckigen Öffnungen stellen eine innige homogene Verbindung des eingebrachten Betons sicher, so daß hierdurch Schub- und Scherkräfte aufgenommen werden.The resulting in the sheet metal profile with the help of the pushed-through lamellae or bent tongues rectangular openings ensure an intimate, homogeneous connection of the poured concrete, so that this way shear and shear forces are absorbed.
Durch Einwalzen an sich bekannter Sicken 4α bei den Stahlleichtträgerprofilen gemäß der Erfindung läßt sich eine weitere Erhöhung der Montagefestigkeit erzielen.By rolling in per se known beads 4α in the light steel beam profiles according to the invention a further increase in assembly strength can be achieved.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK5384A DE975557C (en) | 1950-07-04 | 1950-07-05 | Steel light beam as reinforcement of concrete structures |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE295922X | 1950-07-04 | ||
DEK5384A DE975557C (en) | 1950-07-04 | 1950-07-05 | Steel light beam as reinforcement of concrete structures |
Publications (1)
Publication Number | Publication Date |
---|---|
DE975557C true DE975557C (en) | 1962-01-18 |
Family
ID=25782767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK5384A Expired DE975557C (en) | 1950-07-04 | 1950-07-05 | Steel light beam as reinforcement of concrete structures |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE975557C (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH66059A (en) * | 1913-06-06 | 1914-08-01 | Emil Thierman | Sheet metal carrier |
DE382930C (en) * | 1923-10-08 | Claudius Dornier Dipl Ing | Metal hollow beam | |
DE449632C (en) * | 1927-09-22 | Dornier Metallbauten Gmbh | Bracket bent in a box shape from sheet metal | |
DE816145C (en) * | 1950-06-25 | 1951-10-08 | Johannes Mander | Sheet metal girders as rib reinforcement for hollow stone ceilings that can be laid without formwork |
DE916284C (en) * | 1949-11-08 | 1954-08-09 | Therese Pfeffer | Carrier profile with reinforcement against oblique and twisting forces |
-
1950
- 1950-07-05 DE DEK5384A patent/DE975557C/en not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE382930C (en) * | 1923-10-08 | Claudius Dornier Dipl Ing | Metal hollow beam | |
DE449632C (en) * | 1927-09-22 | Dornier Metallbauten Gmbh | Bracket bent in a box shape from sheet metal | |
CH66059A (en) * | 1913-06-06 | 1914-08-01 | Emil Thierman | Sheet metal carrier |
DE916284C (en) * | 1949-11-08 | 1954-08-09 | Therese Pfeffer | Carrier profile with reinforcement against oblique and twisting forces |
DE816145C (en) * | 1950-06-25 | 1951-10-08 | Johannes Mander | Sheet metal girders as rib reinforcement for hollow stone ceilings that can be laid without formwork |
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