AT505350B1 - METHOD FOR PRODUCING NEW CARRIER ELEMENTS FOR BUILDINGS - Google Patents

METHOD FOR PRODUCING NEW CARRIER ELEMENTS FOR BUILDINGS Download PDF

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Publication number
AT505350B1
AT505350B1 AT8682005A AT8682005A AT505350B1 AT 505350 B1 AT505350 B1 AT 505350B1 AT 8682005 A AT8682005 A AT 8682005A AT 8682005 A AT8682005 A AT 8682005A AT 505350 B1 AT505350 B1 AT 505350B1
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AT
Austria
Prior art keywords
lattice
lightweight concrete
lattice girders
girders
double
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Application number
AT8682005A
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German (de)
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AT505350A1 (en
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Feichtmayr Josef
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Priority to AT8682005A priority Critical patent/AT505350B1/en
Publication of AT505350A1 publication Critical patent/AT505350A1/en
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Publication of AT505350B1 publication Critical patent/AT505350B1/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/065Light-weight girders, e.g. with precast parts
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement

Claims (7)

Österreich ischö psMmi AT505 350 B1 2009-08-15 kg/m2) 400 bis 800 kg/m2) K-Wert 0,45W/m2K Patentansprüche 1. Verfahren zur Fertigung von neuen Trägerelementen für Tragkonstruktionen, wie Decken, Unterzüge od. dgl. auf Basis von Beton mit Wärme- und Schalldämmwirkung, welche mit, vorzugsweise in gleichen Abständen voneinander und zueinander parallel angeordneten, mit Vorspannung beaufschlagten, die Deckenlast aufnehmenden, in einer erhärteten Leicht-Betonmasse eingebetteten, sich längserstreckenden Gitterträger (1) gebildet sind, die bevorzugterweise als zwei zumindest entlang von zwei aneinander anliegend verlaufenden Längsstreben, insbesondere Untergurten (3) angeordnete und aneinander gebundene Doppel-Gitterträger (T) mit nach abwärts hin offenem Dreiecks-Querschnitt ausgebildet sind, wobei innerhalb jedes der Gitterträger (1) zumindest ein im Bereich jeder der seiner beiden Enden in höherer Position verankertes, zum Längsmitten-Bereich des Gitterträgers (1) hin absinkend verlaufendes Stahl-Vorspannseil (6) angeordnet ist, dadurch gekennzeichnet, dass auf einer - nach Erhärten der Betonmasse lösbaren - Schalungs-Unterlage in einem ersten Schritt in einer im Vergleich zur Gesamt-Dicke des Trägerelementes (100) geringen, vorzugsweise, maximal 20 % der Decken-Gesamtdicke bzw. -Höhe (h) betragenden, Dicke bzw. Höhe (hs) aufgetragenen ersten bzw. Basis-Schicht (101) aus Leichtbeton in dessen noch "feuchtem" Zustand, also vor Beginn von dessen Abbindung und Erhärtung, die genannten Gitterträger (1), sowie eine dieselben miteinander verbindende, "schlaffe", Bewehrung (8, 8'), bevorzugt Bewehrungsgitter, angeordnet werden und dort einsinken und, dass danach in an sich bekannter Weise die Gitterträger (1) bzw. Doppel-Gitterträger (T) und die Bewehrung (8, 8') mit einer, vorzugsweise die gleiche Zusammensetzung wie die Masse der genannten Basis-Schicht (101) aufweisenden, sich mit derselben materialintegral und materialschlüssig verbindenden, eine Zweitschicht (102) bildenden Leichtbetonmasse (LB), voll einbettend, umgossen wird, wonach - nach Erhärten der den Trägerelement-Körper (10) bildenden Leichtbetonmasse (LB) - das so gebildete Trägerelement (100) ausgeschalt wird.Austria ischö psMmi AT505 350 B1 2009-08-15 kg / m2) 400 to 800 kg / m2) K-value 0,45W / m2K Claims 1. Process for the manufacture of new support elements for supporting structures, such as ceilings, joists or the like. based on concrete with heat and sound insulation, which with, preferably equally spaced from each other and arranged parallel to each other, biased, the ceiling load receiving, embedded in a hardened lightweight concrete mass, longitudinally extending lattice girder (1) are formed, preferably as two at least along two adjoining extending longitudinal struts, in particular lower chords (3) arranged and bonded to each other double lattice girder (T) are formed with downwardly open triangular cross-section, within each of the lattice girder (1) at least one in each area the one of its two ends anchored in a higher position to the longitudinal center region of the lattice girder (1) h arranged in sinking steel tensioning cable (6), characterized in that on a - after hardening of the concrete mass detachable - formwork underlay in a first step in a compared to the total thickness of the support element (100) low, preferably, maximum 20% of the total ceiling thickness or height (h), thickness or height (hs) applied first or base layer (101) of lightweight concrete in its still "wet". Condition, so before the beginning of its setting and hardening, said lattice girders (1), as well as the same interconnecting, "flabby", reinforcement (8, 8 '), preferably reinforcing grid, are arranged and sink there and that then in known manner, the lattice girder (1) or double lattice girder (T) and the reinforcement (8, 8 ') with a, preferably the same composition as the mass of said base layer (101) having, with the same material integral and integrally bonding, a second layer (102) forming lightweight concrete mass (LB), fully embedding, is poured, after which - after hardening of the carrier element body (10) forming lightweight concrete mass (LB) - the carrier element (100) thus formed is turned off. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass Gitterträger (1) eingesetzt werden, welche mittels mit einer Zugspannung von 50 bis 80 bar, insbesondere von 50 bis 60 bar, beaufschlagten Stahlseilen (6) vorgespannt sind.2. The method according to claim 1, characterized in that lattice girders (1) are used, which are biased by means of a tensile stress of 50 to 80 bar, in particular from 50 to 60 bar, acted upon steel cables (6). 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass Gitterträger (1) eingesetzt werden, bei welchen deren Obergurt (2) eine, bevorzugt um 30 bis 150%, insbesondere um 50 bis 120%, höhere Querschnittsfläche aufweist, als dessen beiden Untergurte (3).3. The method according to claim 1 or 2, characterized in that lattice girders (1) are used, in which the upper belt (2) one, preferably by 30 to 150%, in particular by 50 to 120%, higher cross-sectional area than the two Lower straps (3). 4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass Gitterträger (1) eingesetzt werden, bei welchen die Digital-Streben (4) zwischen Obergurt (2) und jedem der beiden Untergurte (3) eine, bevorzugt um 20 bis 50%, geringere Querschnittsfläche aufweisen, als dessen Untergurten (3).4. The method according to any one of claims 1 to 3, characterized in that lattice girders (1) are used, in which the digital struts (4) between the upper flange (2) and each of the two lower chords (3) one, preferably 20 to 50%, smaller cross-sectional area than its lower chords (3). 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass in den Gitterträgern (1) ein mit Stahllitzen gebildetes Vorspann-Stahlseil (6) eingesetzt wird, das im wesentlichen die gleiche Querschnittsfläche aufweist wie die Obergurten (2) der Gitterträger 5/8 osterechsKhes AT505 350 B1 2009-08-15 (1).5. The method according to any one of claims 1 to 4, characterized in that in the lattice girders (1) formed with steel strands tempering steel cable (6) is used, which has substantially the same cross-sectional area as the upper chords (2) of the lattice girders. 5 / 8 osterechsKhes AT505 350 B1 2009-08-15 (1). 6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Gitterträger (1) bzw. die Doppel-Gitterträger (1') und die zwischen denselben sich erstreckende und mit denselben verbundene Armierung (8, 8') mit einer Überdeckung von zumindest 2 cm, vorzugsweise von 2,5 bis 5 cm, von dem Leichtbeton (LB) umgossen bzw. in den Trägerelementkörper (100) eingebettet werden.6. The method according to any one of claims 1 to 5, characterized in that the lattice girder (1) or the double-lattice girder (1 ') and between the same extending and connected to the same reinforcement (8, 8') with an overlap of at least 2 cm, preferably 2.5 to 5 cm, of the lightweight concrete (LB) cast or embedded in the carrier element body (100). 7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass nach Fertigung einer auf eine Schalungsunterlage aufgebrachten dünnen, ersten Leichtbeton-Basis-Schicht (101) in den zwischen den voneinander beabstandet angeordneten Gitterträgern (1) bzw. Doppel-Gitterträgern (Γ) angeordneten Räumen Dämmkörper (14) aus einem Wärme- und Schalldämm-Material, insbesondere Kunststoffschaum-Material, bevorzugt aus Polystyrol, oder aus einem natürlichen Dämm-Material, insbesondere gepresstes Stroh, Naturfasern, beispielsweise Flachs, oder Mineralfaser-Material, eingebracht werden, wonach die Umgießung bzw. Einbettung der (Doppel-)Gitterträger (1, 1') und der Bewehrung (8, 8') mit der Leichbetonmasse (LB) erfolgt. Hierzu 2 Blatt Zeichnungen 6/87. The method according to any one of claims 1 to 6, characterized in that after production of a deposited on a formwork base thin, first lightweight concrete base layer (101) in between the spaced-apart lattice girders (1) and double lattice girders ( Insulated body (14) of a heat and sound insulation material, in particular plastic foam material, preferably made of polystyrene, or of a natural insulating material, in particular pressed straw, natural fibers, such as flax, or mineral fiber material, are introduced , According to which the Umgießung or embedding of the (double) lattice girders (1, 1 ') and the reinforcement (8, 8') with the Leichbetonmasse (LB) takes place. For this 2 sheets drawings 6/8
AT8682005A 2005-05-20 2005-05-20 METHOD FOR PRODUCING NEW CARRIER ELEMENTS FOR BUILDINGS AT505350B1 (en)

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AT505350B1 true AT505350B1 (en) 2009-08-15

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031276A1 (en) * 1980-08-19 1982-03-04 Koch Gmbh Bau + Beton Kg, 7800 Freiburg Hollow self supporting reinforced concrete ceiling element - has filling of hard foam pieces in cavities between internal ribs
US4372092A (en) * 1976-08-16 1983-02-08 Lopez Fred T Precast concrete modular building panel
JPH1018491A (en) * 1996-07-03 1998-01-20 Fujita Corp Composite light-weight floor board and manufacture and installation method therefor
AT405955B (en) * 1997-01-08 2000-01-25 Feichtmayr Josef Load-bearing element for the production of load-bearing structures, and load-bearing structure produced using such load-bearing elements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372092A (en) * 1976-08-16 1983-02-08 Lopez Fred T Precast concrete modular building panel
DE3031276A1 (en) * 1980-08-19 1982-03-04 Koch Gmbh Bau + Beton Kg, 7800 Freiburg Hollow self supporting reinforced concrete ceiling element - has filling of hard foam pieces in cavities between internal ribs
JPH1018491A (en) * 1996-07-03 1998-01-20 Fujita Corp Composite light-weight floor board and manufacture and installation method therefor
AT405955B (en) * 1997-01-08 2000-01-25 Feichtmayr Josef Load-bearing element for the production of load-bearing structures, and load-bearing structure produced using such load-bearing elements

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