DE896999C - Lattice girders as reinforcement of a reinforced concrete rib ceiling - Google Patents
Lattice girders as reinforcement of a reinforced concrete rib ceilingInfo
- Publication number
- DE896999C DE896999C DEB16459A DEB0016459A DE896999C DE 896999 C DE896999 C DE 896999C DE B16459 A DEB16459 A DE B16459A DE B0016459 A DEB0016459 A DE B0016459A DE 896999 C DE896999 C DE 896999C
- Authority
- DE
- Germany
- Prior art keywords
- reinforcement
- reinforced concrete
- ceiling
- concrete rib
- lattice girders
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
Die Erfindung bezieht sich auf einen Gitterträger, der als Bewehrung einer schalungsfrei verlegten Stahlbetonrippen(decke mit Füllkörpern dient.The invention relates to a lattice girder as reinforcement Reinforced concrete ribs laid without formwork (ceiling with fillers is used.
Bei der Stahlbetonrippendecke nach dem Patent 803 368 sind die Füllkörper während der Verlegung auf einem Fertig-Gitterträger aufgelagert, der nach Ausfüllung dest Hohlraumes zwischen den Füllkörpern die Druck- und die Zugbewehrung des Deckentragbalkens bildet. Der Gitterträger besteht hierbei vorzugsweise aus 1-Stahl mit aufgesetztem Stahlgitterwerk, wobei die Berührungspunkte miteinander verschweißt sind.In the reinforced concrete ribbed ceiling according to patent 803 368, the fillers are placed on a prefabricated lattice girder during installation, which forms the compression and tensile reinforcement of the ceiling beam after filling the cavity between the fillers. The lattice girder here is preferably made of 1-steel with a steel latticework attached, the points of contact being welded to one another.
Um nun bei diesem Gitterträger nicht an Profilstahl gebunden zu sein, ist erfindungsgemäß der Untergurt des Trägers aus zwei im Abstand voneinander verlegten Stahlstäben von rundem oder sonstigem Querschnitt gebildet, welche an den Knotenpunkten des aufgesetzten Stahlgitterwerkes durch Querstege miteinander verbunden sind.In order not to be tied to profile steel with this lattice girder, is according to the invention the lower chord of the girder from two laid at a distance from each other Steel rods of round or other cross-section formed, which at the nodes of the attached steel latticework are connected to one another by crossbars.
Diese Ausbildung des Gitterträgers ergibt den weiteren Vorteil, daß sein Untergurt keine durchgehend geschlossene Stahlfläche bildet, der Ausfüllbeton in die Zwischenräume des Untergurtes eindringen kann, diesen restlos umkleidet, die Anordnung von wärmedämmenden Putzträgerstreifen unterhalb des bislang geschlossenen Trägeruntergurtes zur Vermeidung von Schwitzwasser Überflüssig wird und eine glatte durchgehende Deckenputzschicht leichter herstellbar ist.This formation of the lattice girder has the further advantage that its lower chord does not form a continuously closed steel surface, the filling concrete can penetrate into the interstices of the lower chord, completely surrounds it, the arrangement of heat-insulating plaster base strips below the previously closed Lower strap to avoid condensation becomes superfluous and a smooth one continuous ceiling plaster layer is easier to produce.
Ein weiterer Vorzug besteht darin, daß als Füllkörper die bekannten Nasensteine vortrefflich Anwendung finden können, welche nach dem Verlegen mit ihrer Nase den Untergurt des Gitterträgers unterfassen,, wobei der durch die Zwischenräume des Untergurtes fließende Beton einen guten Verbund zwischen Träger und Füllkörpernase abgibt.Another advantage is that the known filling bodies are used Nose stones can find excellent application, which after laying with their Nose under the lower chord of the lattice girder, with the through the gaps The concrete flowing through the lower chord creates a good bond between the girder and the filler nose gives away.
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt, und zwar zeigt Fig. z einen teilweisen Querschnitt der fertigen Decke, Fig. 2 eine Seitenansicht des Gitterträgers, Fig. 3 in größerem Maßstab einen Querschnitt desselben, Fig. 4 eine teilweise Seitenansicht zur Fig. 3, Fig. 5 eine Draufsicht des Gitterträgers.In the drawing, the subject matter of the invention is shown, for example, namely Fig. z shows a partial cross-section of the finished ceiling, Fig. 2 shows a Side view of the lattice girder, FIG. 3, on a larger scale, a cross section of the same, FIG. 4 shows a partial side view of FIG. 3, FIG. 5 shows a plan view of the lattice girder.
Der Gitterträger wird fabrikmäßig hergestellt; sein Untergurt besteht aus zwei im Abstand voneinander verlegten und durch Querstege 2 miteinander verbundenen Rundstäben 3 oder sonstigen Stahlstäben, wobei an die Querstege 2 die Füllglieder 4, vorteilhaft in Form eines zickzackförmig geführten durchgehenden Stabes, angeschweißt sind. Diese sind wiederum mit dem Obergurtdruckstab 5 verschweißt, der zweckmäßig als geschlitztes Rohr 5 ausgebildet ist.The lattice girder is manufactured in the factory; its lower chord is made from two laid at a distance from one another and connected to one another by crossbars 2 Round bars 3 or other steel bars, with the filler links attached to the transverse webs 2 4, advantageously in the form of a zigzag guided continuous rod, welded on are. These are in turn welded to the upper chord pressure rod 5, which is useful is designed as a slotted tube 5.
Die Querstege 2 bestehen aus Flachstahl mit glatter oder irgendwie profilierter Oberfläche. Der das Gitterwerk bildende Zickzackstab kann unter den Stegen 2 hindurchgeführt oder auch auf diese aufgesetzt sein.The crossbars 2 are made of flat steel with smooth or somehow profiled surface. The zigzag bar forming the latticework can under the Web 2 passed through or placed on this.
Dieser Gitterträger wird am Bau in gewünschtem Abstand verlegt, worauf sogleich die Füllkörper 6 eingesetzt werden und anschließend das Ausbetonieren des Hohlraumes. ? zwischen den Füllkörpern 6 unter Einschluß der Bewehrung zur Bildung der Deckenrippen erfolgt.This lattice girder is laid at the desired distance on the building, whereupon immediately the filler 6 are used and then the concreting of the Cavity. ? between the fillers 6 including the reinforcement for formation the ceiling ribs.
Als Füllkörper 6 finden vorteilhaft solche mit Nasen 8 oder 9 Anwendung, da diese den Untergurt 2, 3 des Gitterträgers nach unten abdecken.Those with noses 8 or 9 are advantageously used as filling bodies 6, as these cover the lower chord 2, 3 of the lattice girder downwards.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB16459A DE896999C (en) | 1951-08-25 | 1951-08-25 | Lattice girders as reinforcement of a reinforced concrete rib ceiling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB16459A DE896999C (en) | 1951-08-25 | 1951-08-25 | Lattice girders as reinforcement of a reinforced concrete rib ceiling |
Publications (1)
Publication Number | Publication Date |
---|---|
DE896999C true DE896999C (en) | 1953-11-16 |
Family
ID=6958915
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB16459A Expired DE896999C (en) | 1951-08-25 | 1951-08-25 | Lattice girders as reinforcement of a reinforced concrete rib ceiling |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE896999C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966242A (en) * | 1956-09-18 | 1960-12-27 | Kaiser Willy | Light steel girder |
DE1110847B (en) * | 1954-04-15 | 1961-07-13 | Fritz Lippe | Rigid reinforcement for ribbed ceilings to absorb assembly loads |
DE1146240B (en) * | 1955-09-06 | 1963-03-28 | Max Georg Puwein Dipl Ing Dr T | Truss, especially for reinforced concrete ceilings |
EP3744919A1 (en) * | 2019-05-29 | 2020-12-02 | Briqueteries de Ploegsteert SA | An improved pre-fabricated lightweight joist for constructing concrete floors |
-
1951
- 1951-08-25 DE DEB16459A patent/DE896999C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1110847B (en) * | 1954-04-15 | 1961-07-13 | Fritz Lippe | Rigid reinforcement for ribbed ceilings to absorb assembly loads |
DE1146240B (en) * | 1955-09-06 | 1963-03-28 | Max Georg Puwein Dipl Ing Dr T | Truss, especially for reinforced concrete ceilings |
US2966242A (en) * | 1956-09-18 | 1960-12-27 | Kaiser Willy | Light steel girder |
EP3744919A1 (en) * | 2019-05-29 | 2020-12-02 | Briqueteries de Ploegsteert SA | An improved pre-fabricated lightweight joist for constructing concrete floors |
BE1027279B1 (en) * | 2019-05-29 | 2021-04-20 | Briqueteries De Ploegsteert | Prefabricated Lightweight Upgraded Joist for Concrete Floor Construction |
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