EP0023042B1 - Elément de plancher préfabriqué pour planchers de bâtiments - Google Patents

Elément de plancher préfabriqué pour planchers de bâtiments Download PDF

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Publication number
EP0023042B1
EP0023042B1 EP80104252A EP80104252A EP0023042B1 EP 0023042 B1 EP0023042 B1 EP 0023042B1 EP 80104252 A EP80104252 A EP 80104252A EP 80104252 A EP80104252 A EP 80104252A EP 0023042 B1 EP0023042 B1 EP 0023042B1
Authority
EP
European Patent Office
Prior art keywords
ceiling
concrete
steel girder
web
ceiling panel
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
EP80104252A
Other languages
German (de)
English (en)
Other versions
EP0023042A1 (fr
Inventor
Ulrich Fiergolla
Josef Rottmayr
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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 AT80104252T priority Critical patent/ATE3454T1/de
Publication of EP0023042A1 publication Critical patent/EP0023042A1/fr
Application granted granted Critical
Publication of EP0023042B1 publication Critical patent/EP0023042B1/fr
Expired legal-status Critical Current

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    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
    • E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
    • E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling

Definitions

  • the invention relates to a prefabricated ceiling element for building ceilings according to the preamble of claim 1.
  • the steel beams are intended to absorb the tensile forces which are caused by the bending stress of the concrete ceiling slab; furthermore, they should transmit transverse forces to the support. They therefore extend over the entire length of the ceiling element, ie they go through to the support, in other words almost to the narrow side of the concrete ceiling slab (GB-A No. 586394, 925236; US-A No. 4115971; " Merkblatt 115" der Advice center for steel use, Düsseldorf, p. 15; DIN 1045).
  • a prefabricated ceiling element for building ceilings which consists of a concrete ceiling tile and a reinforced concrete beam running in the longitudinal direction of the ceiling element (FR-A No. 2242533).
  • the ends of the concrete ceiling slab are thickened relative to the central part.
  • the bottom edge of the reinforced concrete beam which runs obliquely upwards at the end, opens into the underside of the concrete ceiling slab at a distance from the narrow side.
  • the reinforcement of the concrete girder like the ceiling elements mentioned at the beginning, essentially goes through to the support. Due to the thickening of the concrete ceiling slab, installation routes remain free on the narrow sides, so that installation lines can be laid essentially freely from below.
  • the object of the invention is therefore to provide a prefabricated ceiling element for building ceilings of the type mentioned, i.e. with a steel girder, to be made available, in which installation lines can be laid freely from below, the construction height does not limit the diameter of installation lines and the material expenditure for production is kept to a minimum.
  • a ceiling element according to the invention is placed in each case at the end free of the steel beam on a support, for example the top of a load-bearing wall. Due to the distance of the end of the steel girder from the narrow side, a free space remains between the inside of the support and the adjacent end of the steel girder running in the longitudinal direction of the ceiling element, so that an installation street running transversely to the longitudinal direction of the ceiling elements and the associated steel girder is created at this point. Installation routes also remain free between the longitudinal steel beams. These installation routes are freely accessible from below when the ceiling is installed, so that any installation lines can be easily installed.
  • the construction height of the ceiling can be selected to a minimum without limiting the permissible diameter of the installation lines to be laid, as can the material expenditure, since the ceiling essentially only consists of the relatively thin concrete ceiling slab and the support provided with many recesses.
  • the steel girder had the shape of a lattice girder in a known ceiling element (GB-A No. 925236); instead, the forms characterized in claims 2 and 3, which are also known per se, are currently preferred (US-A No. 4115971).
  • the ceiling elements according to the invention are prefabricated, it is generally not possible to use steel beams which are specifically matched to the desired length of the ceiling elements, i.e. those in which the distances between the steel girder web tips are dimensioned such that a tip can be anchored in the concrete ceiling tile at the desired distance from the narrow sides of the concrete ceiling tile.
  • a tension element the free end of which is anchored in the concrete ceiling plate, is fastened to the ends of the steel beam in each case at an acute angle to the concrete ceiling plate.
  • this construction is modified in accordance with the characterizing features of claim 6, the special configurations of which are characterized in claims 7 and 8.
  • a reinforced concrete ceiling is shown from three ceiling elements, each consisting of a reinforced concrete ceiling slab 1 and two steel beams 2 arranged on the underside of the ceiling slab 1.
  • Each of these steel beams 2 consists of a web plate 2a, which is cut straight on its side shown in FIG. 1 below and zigzag-shaped on its side shown in FIG. 1 in such a way that tips such as 2c are formed, between which recesses such as 2d are located.
  • Such a cut can be made in such a way that two web plates, such as 2a, are created from a sheet metal strip of the desired width or a corresponding flat steel, which are identical to one another.
  • a flange 2b is welded onto the straight side of the web plate 2a, the two ends 2e of which protrude beyond the web plate 2a and lead to it at 45 ° to the level of the ceiling plate 1 and are anchored there.
  • the anchoring takes place by means of two round steels, one of which is shown at 2f, and which are welded to both the free ends of the flange parts 2e and to each of the tips 2c.
  • the distance of the free ends of the flange parts 2e from the narrow sides of the concrete ceiling slab 1 is evidently greater than the construction height of the ceiling element itself, i.e. the sum of the thickness of the ceiling plate 1 and the free height of the steel beam 2.
  • the upper limit for this distance is given by the bending capacity of the ceiling plate 1.
  • the ceiling panels 1 are placed on supports 3 in the vicinity of their narrow sides, in the exemplary embodiment shown the upper edges of two load-bearing walls.
  • the attachment there is carried out in the usual way.
  • a ceiling opening 6 can be connected to a vertical installation line 8 by a line 7 which, as can best be seen in FIG. 1, can have an arbitrarily large diameter without changing the construction height of the ceiling.
  • the line 7, as also shown in FIG. 2 can run between the steel beams 2 through an installation line 5 which remains free between the steel beams 2.
  • Weaker installation lines can be carried out in a manner not shown through the recesses between the tips 2c of the steel girders 2, which under certain circumstances can shorten the line routing.
  • the ceiling element according to the invention behaves in the central area like a composite beam, i.e. the concrete ceiling slab 1 absorbs compressive forces as the upper chord, while the steel beam 2 absorbs tensile forces as well as shear forces between the tensile and compression chords.
  • all forces are absorbed only by the concrete ceiling slab or its reinforcement and then introduced into the flange 2b of the steel beam 2 at a distance from the supports 3 via the flange ends 2e.
  • the procedure is such that after the flange 2b is welded to the web plate 2a, the two round steels 2f to the Flange ends 2e and the web tips 2c are welded on.
  • a slab formwork is then prepared insofar as the longitudinal reinforcement is inserted and the transverse reinforcement in the later upper part of the slab 1, then the beam 2 is used in the manner shown, such that the tips 2c penetrate up to half the depth of the formwork.
  • the transverse reinforcements in the lower part of the slab are then pushed through the recesses between the tips 2c and then the formwork is poured with concrete in the usual way.
  • a ceiling plate 1 ' is also provided as well as a steel beam 2', which, however, in this embodiment is half of a double-T beam, the web of which is cut open in a zigzag shape, so that again Peaks such as 2c 'arise between which recesses remain open.
  • two T-profiles 9 are welded, which run approximately at 45 ° to the ceiling plate 1'.
  • headed studs 10 are welded on.
  • the production of the actual ceiling element is carried out analogously to the production in the embodiment according to FIGS. 1 and 2, but in this embodiment all reinforcing bars for the ceiling slab 1 ', which are indicated in FIGS. 4 and 5 at 11, can be used in the Ceiling slab formwork are inserted before the girder with its tips 2c 'and the stud bolts 10 welded to them are inserted into the formwork, since the stud bolts 10 easily fit between the transverse reinforcing bars, as can best be seen in FIG. 4.
  • the steel beam 2 "consists of a T-profile 12 and a round steel 13 welded onto the upper edge of its web, which, as shown, is bent in a zigzag shape; apart from that, the structure is the same as for the steel beam 2 'of the embodiment according to FIG. 3 to 5.
  • web plates 14 are provided in this embodiment, which are welded to the T-profile 12, but can also be welded to the round steel 13, and their The side facing away from the steel beam 2 "extends at approximately 45 ° to the ceiling plate 1". These web plates 14 are anchored in the ceiling plate 1 in the same way as in the embodiment according to FIGS. 3 to 5.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Building Environments (AREA)
  • Panels For Use In Building Construction (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Finishing Walls (AREA)

Claims (8)

1. Elément préfabriqué de plafonds de bâtiment, constitué d'une dalle en béton formant plafond (1, 1', 1") d'épaisseur uniforme et d'au moins une poutre (2, 2', 2") en acier, qui s'étend suivant la direction longitudinale de l'élément formant plafond, qui a une section droite en forme de Letdont l'âme présente des pointes (2c, 2c') en saillie et, entre celles-ci, des creux sensiblement triangulaires, les pointes (2c, 2c') de l'âme de la poutre en acier étant ancrées dans la dalle en béton formant plafond (1,1',1 "), caractérisé en ce que la poutre (2, 2', 2") en acier, qui s'étend suivant la direction longitudinale de l'élément formant plafond, se termine à une distance des petits côtés de la dalle en béton formant plafond, qui est au moins égale à la hauteur de construction de l'ensemble de l'élément formant plafond.
2. Elément de plafond suivant la revendication 1, caractérisé en ce que la poutre (2') en acier est constituée de la moitié d'un profilé en T double divisé dans l'âme par une coupe s'étendant en zigzag.
3. Elément de plafond suivant la revendication 1, caractérisé en ce que la poutre (2) en acier est constituée d'une tôle (2a) découpée en zigzag sur une face et droite sur l'autre face, et d'une bride (2b) soudée sur la face droite et perpendiculaire à la tôle (2a).
4. Elément de plafond suivant l'une des revendications 1 à 3, caractérisé en ce que les pointes (2c, 2c') de l'âme de la poutre en acier sont reliées les unes aux autres par au moins de l'acier en barre (2f) et sont ancrées dans la dalle en béton formant plafond (1, 1', 1 ").
5. Elément de plafond suivant l'une des revendications 1 à 3, caractérisé en ce que les pointes (2c') de l'âme de la poutre en acier sont ancrées dans la dalle en béton formant plafond par des goujons à tête (10).
6. Elément de plafond suivant l'une des revendications 1 à 5, dans lequel, aux extrémités de la poutre (2', 2") en acier, est fixé respectivement un tirant (9, 14), qui s'étend en faisant un angle aigu par rapport à la dalle en béton formant plafond (1', 1 ") et dont l'extrémité libre est ancrée dans la dalle en béton formant plafond (1', 1 "), caractérisé en ce que l'extrémité libre du tirant (9,14) se termine à une distance des petits côtés de la dalle en béton formant plafond (1', 1 "), qui est au moins égale à la hauteur de construction de l'ensemble de l'élément de plafond.
7. Elément de plafond suivant la revendication 6, caractérisé en ce que le tirant (9) a un profil en T.
8. Elément de plafond suivant la revendication 6, caractérisé en ce que le tirant (14) est une âme pleine.
EP80104252A 1979-07-20 1980-07-18 Elément de plancher préfabriqué pour planchers de bâtiments Expired EP0023042B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104252T ATE3454T1 (de) 1979-07-20 1980-07-18 Vorgefertigtes deckenelement fuer gebaeudedecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792929350 DE2929350A1 (de) 1979-07-20 1979-07-20 Verbundtraeger fuer gebaeudedecken
DE2929350 1979-07-20

Publications (2)

Publication Number Publication Date
EP0023042A1 EP0023042A1 (fr) 1981-01-28
EP0023042B1 true EP0023042B1 (fr) 1983-05-18

Family

ID=6076224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104252A Expired EP0023042B1 (fr) 1979-07-20 1980-07-18 Elément de plancher préfabriqué pour planchers de bâtiments

Country Status (5)

Country Link
US (1) US4586307A (fr)
EP (1) EP0023042B1 (fr)
AT (1) ATE3454T1 (fr)
DE (2) DE2929350A1 (fr)
WO (1) WO1981000272A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE436213B (sv) * 1981-02-20 1984-11-19 Per Hofman Balkformat byggelement
DE8203302U1 (de) * 1982-02-08 1982-06-24 Brendel, Irnfried, Dipl.-Ing., 7847 Badenweiler Einlage fuer stahlverbundtraeger
DE3204590C2 (de) * 1982-02-10 1984-12-20 Idsteiner Stahl- und Verbundträgerbau GmbH, 6270 Idstein Verbundträger
DE8429708U1 (de) * 1984-07-18 1985-02-07 Kurt Hirsch Kunststoffwerk Gesellschaft mbH, Glanegg Montageplatte fuer fussbodenheizungen
GB2226058B (en) * 1988-12-14 1992-12-02 Kenneth John Pryce Improvements relating to building construction
DE29615361U1 (de) * 1996-09-04 1996-11-14 Maack, Peter, Dr.-Ing., 21376 Salzhausen Decke für Gebäude
US5884442A (en) * 1997-03-28 1999-03-23 Structural Systems Ltd. Composite joist and concrete panel assembly
NL1023875C2 (nl) * 2003-07-10 2005-01-11 Aslo Twenty Five B V Prefab vloerdeel met uitwendige wapening en een werkwijze voor het vervaardigen van een dergelijk prefab-vloerdeel.
US9957713B2 (en) * 2011-05-11 2018-05-01 Composite Technologies Corporation Load transfer device
US9273458B2 (en) * 2011-08-18 2016-03-01 King Solomon Creative Enterprises Corp. Wide span static structure
AT517824B1 (de) * 2015-09-21 2017-10-15 Franz Oberndorfer Gmbh & Co Kg Platte, insbesondere Boden- bzw. Deckenplatte für ein Bauwerk

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA619536A (en) * 1961-05-02 Gerald V. Roney, Jr. Structural building units
CA648462A (en) * 1962-09-11 Gerald V. Roney, Jr. Structural building units
US1725501A (en) * 1927-11-22 1929-08-20 Roy V Yeager Structural building joist
US1804132A (en) * 1928-09-17 1931-05-05 Edward H Tashjian Construction unit
US1974730A (en) 1931-09-17 1934-09-25 Zollinger Fritz Steel girder for concrete structures
US2055701A (en) * 1934-05-24 1936-09-29 Palmer Robert Kendrick Steel joist for concrete floors
GB498281A (en) * 1937-08-27 1939-01-04 Geoffrey Murray Boyd Improvements in built-up structural members
US2558946A (en) * 1943-11-19 1951-07-03 Fromson Bertram William Reinforced cast structure
GB586394A (en) * 1944-09-11 1947-03-18 George Kilner Reinforced concrete construction
US2636377A (en) * 1945-11-07 1953-04-28 Hilpert Meier George Reinforced concrete beam
AT190260B (de) 1955-09-03 1957-06-25 Ebenseer Betonwerke Gmbh Tragwerk, insbesondere Träger, Säule, Armierung für Gußmassen od. dgl.
US2987855A (en) * 1958-07-18 1961-06-13 Gregory Ind Inc Composite tall-beam
GB937440A (en) * 1960-04-07 1963-09-18 United Steel Companies Ltd Improvements relating to metal members for use in composite structural parts of concrete and metal
GB925236A (en) * 1960-08-05 1963-05-01 Gerald Vanluven Roney Jr Structural building units
US3094813A (en) * 1961-04-07 1963-06-25 Van Rensselaer P Saxe Bar joist
GB1117111A (en) * 1963-12-16 1968-06-12 Christiani And Nielsen Ltd Improvements in or relating to composite steel and concrete structures
FR2242533A1 (en) * 1973-08-31 1975-03-28 Sechoy Raymond Precast post-tensioned concrete floor units - are supported by beams and have T-shaped cross sections
GB1540575A (en) 1976-06-25 1979-02-14 Hereford Woodwool Ltd Structural element
LU77749A1 (de) * 1977-07-12 1979-03-26 Arbed Verbundtraeger
US4115971A (en) 1977-08-12 1978-09-26 Varga I Steven Sawtooth composite girder

Also Published As

Publication number Publication date
EP0023042A1 (fr) 1981-01-28
DE2929350A1 (de) 1981-02-12
WO1981000272A1 (fr) 1981-02-05
ATE3454T1 (de) 1983-06-15
US4586307A (en) 1986-05-06
DE3063320D1 (en) 1983-07-07

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