EP1371794B1 - Selbsttragender Gitterträger für die Herstellung von Stahlbetonverbundträgern - Google Patents

Selbsttragender Gitterträger für die Herstellung von Stahlbetonverbundträgern Download PDF

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Publication number
EP1371794B1
EP1371794B1 EP03425377A EP03425377A EP1371794B1 EP 1371794 B1 EP1371794 B1 EP 1371794B1 EP 03425377 A EP03425377 A EP 03425377A EP 03425377 A EP03425377 A EP 03425377A EP 1371794 B1 EP1371794 B1 EP 1371794B1
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EP
European Patent Office
Prior art keywords
lattice
base
stringers
posts
concrete
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 - Lifetime
Application number
EP03425377A
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English (en)
French (fr)
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EP1371794A1 (de
Inventor
Franco Mangione
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TECHNOSTUDI Srl
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Technostudi Srl
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Publication of EP1371794A1 publication Critical patent/EP1371794A1/de
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Publication of EP1371794B1 publication Critical patent/EP1371794B1/de
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Expired - Lifetime legal-status Critical Current

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    • 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
    • E04C5/0653—Light-weight girders, e.g. with precast parts with precast parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • 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
    • E04C3/26—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 prestressed
    • 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
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete

Definitions

  • the present invention relates to the field of prefabricated construction elements generally for building and more particularly an improved self-supporting lattice to provide steel-concrete composite beams for housing and industrial building.
  • Beams for building with a composite steel-concrete construction have typically the shape of a reversed T and consist of a large lower plate or sole, several posts perpendicular thereto, and one or more stringers along the top of such posts. Such constructions are embodied upon installation into the concrete casting except for the intrados of the base plate which is subjected to weather and fire.
  • the main object of the invention is to provide a composite beam of the type mentioned above with a lattice fully embodied in the concrete casting and with a base of concrete reinforced with plastic and/or steel fibres able to avoid the need for provisional moulds during the installation.
  • the upper girder of the lattice consists of three or more stringers 1 with a circular or square cross section laying on a plane parallel to the horizontal plane of the base. Such stringers are assembled in pairs each of them engages the upper end of a post 3. Spacers 2 are interposed between each pair of stringers at such upper end of the posts and have the same shape and size as the connected stringers.
  • the lower girder consists of four or more stringers 4 with a circular or square cross section laying on the horizontal plane of the base. They are made integral with posts 3 too in the same way as in the upper girder. The stringers 4 of the lower girder are also assembled in pairs each of them engages the lower end of the posts 3.
  • the reinforcing fibres mixed to the concrete of the bottom give the latter an even limited tensile strength in order to prevent damages or cracks in the bottom which would cause problems in the mechanical strength and/or fire resistance.
  • the bottom is provided with a little upper mould consisting of side holding walls C to which longitudinal L-shaped section bars 8 supported by cross bars 7 connected to posts 3 are secured.
  • the invention provides several cross irons 5 welded to the lower stringers 4.
  • posts 3 have their lower ends together with the lower stringers 4 embodied in the bottom or base F of concrete reinforced with plastic fibres. It should be appreciated that the particular shape of the mould according to the present invention makes the use of any through bolt which would impair the fire resistance unnecessary.
  • Figure 2 shows a simplified embodiment of the invention in which the lattice is not embodied in the bottom of concrete reinforced with fibres but it is applied directly to the bottom in factory.
  • bottom F is provided with longitudinal supporting bars 6 which are integral with the above-mentioned cross irons 5 welded to the lower stringers 4 and are able to make bottom F integral with the lattice.
  • U-shaped cross brackets 9 are also provided which help to make the bottom integral with the casting of the beam and the relative floor.
  • bottom F in order to allow bottom F to be secured to the lattice of the beam, the upper side of bottom F is provided with a plurality of nuts D "embodied" in the bottom in suitable positions and engaging corresponding bolts B which tighten cross irons 5, thus connecting the bottom to the lower stringers of the lattice.
  • such bolts are not through bolts but are embodied in the bottom so that the fire protection is ensured.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Building Environments (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (9)

  1. Selbsttragendes Gitterwerk für die Herstellung von Stahlbetonverbundträgern, wobei das Gitterwerk vollständig in dem Betonguss aufgenommen werden soll und einen unteren Träger umfasst, der aus vier oder mehr Streben (4) mit kreisförmigem oder quadratischem Querschnitt, in einer horizontalen Ebene der Basis des Gitterwerkes liegend und aus einem Stück mit Pfosten (3) gefertigt, besteht, wobei die Streben (4) paarweise angeordnet sind, wobei ein jeder derselben in das untere Ende der Pfosten (3) eingreift, wobei das Gitterwerk eine Basis oder ein Unterteil (F) aus mit Kunststoff und/oder Stahlfasern verstärktem Beton aufweist und in der Lage ist, die Notwendigkeit von Hilfsformen während des Einbaus zu vermeiden, wobei die unteren Enden der Pfosten (3) zusammen mit den unteren Streben (4) in der Basis bzw. dem Unterteil aufgenommen werden, wobei die Verstärkungsfasern weiterhin die Aufgabe haben, der Basis bzw. dem Unterteil eine wenigstens begrenzte Zugfestigkeit zu verleihen, wodurch Beschädigung und Risse verhindert werden, die Probleme mit der mechanischen Festigkeit und/oder der Feuerbeständigkeit verursachen würden.
  2. Selbsttragendes Gitterwerk zur Herstellung von Stahlbetonverbundträgern, wobei das Gitterwerk vollständig in dem Betonguss aufgenommen werden soll und einen unteren Träger umfasst, der aus vier oder mehr Streben (4) mit kreisförmigem oder quadratischem Querschnitt besteht, die in der horizontalen Ebene der Basis des Gitterwerkes liegen und die aus einem Teil mit Pfosten (3) gefertigt sind, wobei die Streben (4) paarweise angeordnet sind, wobei eine jede derselben in das untere Ende der Pfosten (3) eingreift, wobei das Gitterwerk eine Basis oder ein Unterteil (F) aus mit Kunststoff und/oder Stahlfasern verstärktem Beton aufweist und in der Lage ist, die Notwendigkeit von Hilfsformen während des Einbaus zu vermeiden, wobei die Basis bzw. das Unterteil mit Längstragstäben (6) versehen ist, die aus einem Stück mit Quereisen (5) an die unteren Streben (4) angeschweißt sind, wobei die Stäbe (6) in der Lage sind, die Basis bzw. das Unterteil (F) aus einem Stück mit dem Gitterwerk zu bilden, wobei die Verstärkungsfasern weiterhin die Aufgabe haben, der Basis bzw. dem Unterteil wenigstens eine begrenzte Zugfestigkeit zu verleihen, wodurch Beschädigung und Risse verhindert werden, die Probleme mit der mechanischen Festigkeit und/oder der Feuerbeständigkeit verursachen würden.
  3. Selbsttragendes Gitterwerk zur Herstellung von Stahlbetonverbundträgern, wobei das Gitterwerk vollständig in dem Betonguss aufgenommen werden soll und einen unteren Träger umfasst, der aus vier oder mehr Streben (4) mit kreisförmigem oder quadratischem Querschnitt besteht, die in der horizontalen Ebene der Basis des Gitterwerkes liegen und die aus einem Teil mit Pfosten (3) gefertigt sind, wobei die Streben (4) paarweise angeordnet sind, wobei eine jede derselben in das untere Ende der Pfosten (3) eingreift, wobei das Gitterwerk eine Basis oder ein Unterteil (F) aus mit Kunststoff und/oder Stahlfasern verstärktem Beton aufweist und in der Lage ist, die Notwendigkeit von Hilfsformen während des Einbaus zu vermeiden, wobei die Oberseite der Basis bzw. des Unterteils an geeigneten Positionen mit einer Vielzahl von eingelassenen Muttern (D) versehen ist, damit die Basis bzw. das Unterteil (F) an dem Gitterwerk gesichert werden kann, wobei die Muttern in jeweilige Schrauben (B) eingreifen, die die Quereisen (5), die an den Streben (4) angeschweißt sind, anziehen, wodurch die Basis bzw. das Unterteil mit den Streben (4) des Gitterwerkes verbunden wird, wobei die Verstärkungsfasern weiterhin die Aufgabe haben, der Basis bzw. dem Unterteil wenigstens eine begrenzte Zugfestigkeit zu verleihen, wodurch Beschädigung und Risse verhindert werden, die Probleme mit der mechanischen Festigkeit und/oder der Feuerbeständigkeit verursachen würden.
  4. Gitterwerk gemäß Anspruch 1 oder 2 oder 3, dadurch gekennzeichnet, dass es einen oberen Träger umfasst, der aus drei oder mehr Streben (1) mit einem kreisförmigen oder quadratischen Querschnitt, in einer Ebene parallel zu der horizontalen Ebene der Basis liegend, besteht, wobei die Streben an den oberen Enden der Pfosten (3) befestigt sind.
  5. Gitterwerk gemäß Anspruch 1, dadurch gekennzeichnet, dass das Unterteil (F) mit einer kleinen oberen Form versehen ist, die aus Seitenhaltewänden (C) besteht, an denen L-förmige Längsprofilstäbe (8) befestigt sind, die von Querstäben (7) gestützt werden, die mit Pfosten (3) verbunden sind.
  6. Gitterwerk gemäß Anspruch 1, dadurch gekennzeichnet, dass mehrere Quereisen (5), an die unteren Streben (4) angeschweißt, bereitgestellt werden.
  7. Gitterwerk gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass es im Werk direkt an dem Unterteil (F) aus mit Fasern verstärktem Beton angebracht wird.
  8. Gitterwerk gemäß Anspruch 3, dadurch gekennzeichnet, dass die Schrauben keine Durchsteckschrauben sind, sondern dass sie in dem Unterteil aufgenommen werden, so dass der Brandschutz gewährleistet ist.
  9. Gitterwerk gemäß Anspruch 2 oder 3, dadurch gekennzeichnet, dass des Weiteren U-förmige Querriegel (9) bereitgestellt werden, welche helfen, das Unterteil aus einem Stück mit dem Guss des Balkens und des jeweiligen Fußbodens herzustellen.
EP03425377A 2002-06-14 2003-06-11 Selbsttragender Gitterträger für die Herstellung von Stahlbetonverbundträgern Expired - Lifetime EP1371794B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRM20020336 2002-06-14
IT2002RM000336A ITRM20020336A1 (it) 2002-06-14 2002-06-14 Perfezionamenti ad un traliccio reticolare autoportante, per la realizzazione di travi miste acciaio-calcestruzzo per l'edilizia civile ed i

Publications (2)

Publication Number Publication Date
EP1371794A1 EP1371794A1 (de) 2003-12-17
EP1371794B1 true EP1371794B1 (de) 2006-09-13

Family

ID=11456368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425377A Expired - Lifetime EP1371794B1 (de) 2002-06-14 2003-06-11 Selbsttragender Gitterträger für die Herstellung von Stahlbetonverbundträgern

Country Status (5)

Country Link
EP (1) EP1371794B1 (de)
AT (1) ATE339566T1 (de)
DE (1) DE60308261T2 (de)
ES (1) ES2269964T3 (de)
IT (1) ITRM20020336A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003204314B1 (en) * 2003-05-25 2004-11-18 Bendtsen, Bo Mr Precast spanning floor system using steel fibre reinforced concrete
DE202004018655U1 (de) * 2004-12-02 2005-04-21 Velthorst Beheer B.V. Stahlverbundträger mit brandgeschütztem Auflager für Deckenelemente
ITUD20050131A1 (it) * 2005-08-08 2007-02-09 Tecnostrutture S R L Elemento di appoggio di componenti per solaio su un elemento portante di una struttura edile
IT1390922B1 (it) * 2008-07-30 2011-10-19 Tecnostrutture S R L Trave portante a struttura mista
IT1392597B1 (it) * 2009-01-07 2012-03-09 Tecnostrutture S R L Trave portante a struttura mista
CN201908380U (zh) * 2009-05-19 2011-07-27 柳忠林 大跨度预应力混凝土梁板小拟框架结构
CN201962792U (zh) * 2010-03-03 2011-09-07 柳忠林 大跨度预应力混凝土梁板拟框架结构
AT516242A1 (de) * 2014-09-08 2016-03-15 Tech Universität Wien Doppelwand aus hochfestem oder ultrahochfestem Stahlbeton
CN106088480B (zh) * 2016-06-15 2018-08-24 杭州材智建筑科技有限公司 桁架梁、应用桁架梁的组合梁及应用桁架梁的复合楼盖
CN113882569B (zh) * 2021-10-09 2022-04-08 西南科技大学 一种装配式uhpc钢筋桁架叠合板及其制作方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL136703C (de) * 1900-01-01
NL111389C (de) * 1958-01-15
AT360722B (de) * 1978-05-08 1981-01-26 Bucher Franz Bewehrungselement fuer einen auf biegung beanspruchten bauteil aus stahlbeton
GB2077792B (en) * 1980-03-22 1983-06-08 Tinsley Building Prod Ltd Casting reinforced concrete floors
FR2712326B1 (fr) * 1993-11-09 1996-02-09 Fimurex Elément de construction en béton armé, partiellement préfabriqué.
DE29906967U1 (de) * 1999-04-19 1999-08-12 Ritter, Karl Konrad, 57518 Betzdorf Schalung

Also Published As

Publication number Publication date
EP1371794A1 (de) 2003-12-17
DE60308261D1 (de) 2006-10-26
ITRM20020336A1 (it) 2003-12-15
ATE339566T1 (de) 2006-10-15
ES2269964T3 (es) 2007-04-01
ITRM20020336A0 (it) 2002-06-14
DE60308261T2 (de) 2007-08-30

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