EP0511193A2 - Elément d'armature pour un panneau de plafond - Google Patents

Elément d'armature pour un panneau de plafond Download PDF

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Publication number
EP0511193A2
EP0511193A2 EP92890074A EP92890074A EP0511193A2 EP 0511193 A2 EP0511193 A2 EP 0511193A2 EP 92890074 A EP92890074 A EP 92890074A EP 92890074 A EP92890074 A EP 92890074A EP 0511193 A2 EP0511193 A2 EP 0511193A2
Authority
EP
European Patent Office
Prior art keywords
reinforcement
basic
displacement
body according
stiffening ribs
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.)
Ceased
Application number
EP92890074A
Other languages
German (de)
English (en)
Other versions
EP0511193A3 (en
Inventor
Klaus Dipl.-Ing. Ritter
Gerhard Dipl.-Ing. Dr. Ritter
Klaus Dipl.-Ing. Dr. Matz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVI Alpenlaendische Veredelungs Industrie GmbH
Original Assignee
AVI Alpenlaendische Veredelungs Industrie GmbH
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 AVI Alpenlaendische Veredelungs Industrie GmbH filed Critical AVI Alpenlaendische Veredelungs Industrie GmbH
Publication of EP0511193A2 publication Critical patent/EP0511193A2/fr
Publication of EP0511193A3 publication Critical patent/EP0511193A3/de
Ceased legal-status Critical Current

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Classifications

    • 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
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • 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
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
    • 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 [3D] extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars

Definitions

  • the invention relates to a reinforcement body for a ceiling plate provided with stiffening ribs made of cast concrete, with a basic reinforcement, a distribution reinforcement and at least one displacement body arranged between these reinforcements, which consists in particular of foam, the displacement body delimiting cavities for forming the stiffening ribs.
  • a precast concrete slab is known, the reinforcement body of which consists of an upper and a lower reinforcement mat as well as several displacement bodies which keep these reinforcement mats at a distance.
  • the displacement bodies are spaced from one another such that the formation of concrete stiffening ribs of predetermined width and height is made possible in the precast slab.
  • connecting brackets which are arranged in the spaces provided for the stiffening ribs, the two reinforcement mats are bound together, thereby clamping the displacement body between the two reinforcement mats.
  • a disadvantage of the construction of this reinforcement body is first of all the insufficient fixing of the position of the displacement body, which is only achieved by the brackets mentioned above.
  • the reinforcement body also does not have sufficient rigidity, for example, to prevent the reinforcement mats from moving relative to one another during transport.
  • the connecting bracket can also insufficiently absorb shear forces, whereby there is no statically effective shear reinforcement of the stiffening ribs. Since the displacement bodies also lie on the lower reinforcement mat, the concrete covering of the lower element slab is insufficient.
  • EP-O 066 647 discloses a reinforced concrete building board provided with at least one displacement body and with reinforced stiffening ribs, in which shear reinforcement of the stiffening ribs is formed by elevations formed from the lower reinforcement mat, the tips of the elevations can be connected to the upper reinforcement mat.
  • This reinforcement has the disadvantage that the displacer is insufficiently fixed by the elevations and also the concrete coverage of both the lower reinforcement mat and the upper reinforcement mat is insufficient.
  • the reinforcement of the stiffening ribs cannot be selected independently of the shape of the basic reinforcement mat.
  • the object of the invention is to provide a reinforcement body of the type specified in the introduction, which contains as an integrated component a displacement body which is fixed in the reinforcement body in such a way that the same is prevented from floating during the concreting process.
  • the reinforcement body should be designed so variable that it can be adapted to the different static requirements of the ceiling slab with simple means.
  • the reinforcement body should also be easy to manufacture and keep its shape, so that it can be transported and processed without undesired changes in shape.
  • the reinforcement should enable the production of ceiling slabs with a variable degree of prefabrication in the manufacturing plant.
  • the reinforcement body according to the invention is characterized in that the displacement body is fixed immovably in a manner known per se by means of web wires connecting the basic reinforcement to the distributor reinforcement at a selectable distance, so that the basic reinforcement, the distributor reinforcement and the displacement body form a dimensionally stable unit, and that additional reinforcement elements are inserted in accordance with the structural requirements of the ceiling slab into the rib cavities, which are either formed in a one-piece displacement body or formed between a plurality of displacement bodies and have a predetermined direction course in the reinforcement body and a predetermined width.
  • the displacement body is held by the web wires in a manner known per se at a predetermined distance from the basic reinforcement and to the distributor reinforcement.
  • the web wires, which penetrate the displacement body in a manner known per se, are designed as shear reinforcement elements.
  • additional shear reinforcement elements or lattice girders consisting of upper chord, lower chord and infill wires can be arranged in the rib cavities to increase the strength of the stiffening ribs. Additional reinforcement elements designed as individual bars can also be inserted into the rib cavities.
  • the basic reinforcement projects laterally beyond the distribution reinforcement and / or on the opposite side the distribution reinforcement extends beyond the basic reinforcement.
  • the basic reinforcement 1 serves for the reinforcement of a concrete ceiling slab provided with stiffening ribs and consists of a basic reinforcement 1 and a distribution reinforcement 2, which are expediently flush on all sides.
  • the basic reinforcement 1 and the distributor reinforcement 2 consist of reinforcement mats, which in turn are each formed from longitudinal wires 3 and 5 and transverse wires 4 and 6, which are welded to one another and run perpendicular to one another.
  • the basic reinforcement 1 and the distributor reinforcement 2 are connected to one another by web wires 7 which run between the correspondingly aligned longitudinal wires 3 and 5 and are welded to them.
  • a connection of appropriately aligned transverse wires 4 and 6 with the web wires 7 is also possible within the scope of the invention.
  • the distance between the basic reinforcement 1 and the distribution reinforcement 2 and thus the length of the web wires 7 can be freely selected and can be adapted to the structural requirements of the ceiling slab to be reinforced.
  • a displacement body 8 of a predetermined height is arranged at a predetermined distance from these reinforcements, which expediently consists of foam, for example made of polystyrene, and makes it possible to save concrete in the ceiling slab to be reinforced and thus to reduce its weight.
  • the displacement body 8 can be formed in one piece within the scope of the invention, but a plurality of displacement bodies can also be provided.
  • displacement bodies 8 are used, they are arranged at a lateral distance from one another in such a way that rib cavities 9 with a predetermined width are created. With the help of spacers or spacers, not shown, this distance can be exactly maintained during the manufacture of the reinforcement body.
  • the rib cavities 9 are either machined out of the displacement body during the manufacture of the reinforcement body, for example punched out, or a displacement body already provided with rib cavities is used.
  • the rib cavities 9 expediently run parallel to the longitudinal wires 3 and 5, but can also run parallel to the transverse wires 4 and 6.
  • the rib cavities 9 are filled with concrete during the manufacture of the ceiling slab to be reinforced and thus form the stiffening ribs of the ceiling slab.
  • the width of the rib cavities 9 must therefore be chosen in accordance with the static requirements placed on the stiffening ribs of the ceiling slab to be reinforced.
  • FIG. 2 shows a possible arrangement of the bridge wires 7, all bridge wires 7 running between two associated longitudinal wires 3 and 5 being arranged alternately in opposite directions at an angle to one another in the form of a framework.
  • the web wires 7 are able to fix the displacement body in its position in the reinforcement body and also parallel and perpendicular to the longitudinal wires 3 and 5 on the reinforcement body absorb acting thrust forces.
  • the rib cavities 9 can be free of land wires.
  • This embodiment of the reinforcement body according to the invention is selected for those applications in which reinforcement of the stiffening ribs of the ceiling slab to be reinforced is not necessary either for structural reasons, or for the arrangement variant of the web wires, in which these are only intended for fixing the displacement body in the reinforcement body and that Bridge wires otherwise do not perform any other static functions.
  • the rib cavities 9 must also always be free of web wires if the insertion of additional reinforcement elements for reinforcing the stiffening ribs into the rib cavities 9 is made difficult or even impossible by any web wires present, as will be described with reference to the following exemplary embodiments.
  • FIG 3 shows an exemplary embodiment of a reinforcement body according to the invention with additional reinforcement elements 10, which are inserted into the rib cavities 9 for reinforcing the stiffening ribs of the ceiling slab.
  • the reinforcement elements 10O are expediently designed as shear reinforcement elements, but depending on the structural requirements of the ceiling slab to be reinforced, they can also be designed as tension and / or compression reinforcement elements.
  • the reinforcement ribs can be reinforced in the rib cavities 9 inserted reinforcement elements also consist of lattice girders 11, each consisting of an upper chord 12, a lower chord 13 and diagonally extending infill wires 14 running diagonally between the upper chord and lower chord.
  • reinforcement elements also consist of lattice girders 11, each consisting of an upper chord 12, a lower chord 13 and diagonally extending infill wires 14 running diagonally between the upper chord and lower chord.
  • additional reinforcement elements 15 for example in the form of individual bars, into the rib cavities 9, the arrangement of the additional reinforcement elements 15 being freely selectable in accordance with the structural requirements.
  • the reinforcement bodies according to the invention form a dimensionally stable unit which can be transported to the user in a prefabricated state and processed by the latter without an undesirable displacement of the reinforcements relative to one another or displacements of the displacement body relative to the reinforcements taking place.
  • the reinforcement elements 10, 11, 15 can be inserted into the rib cavities 9 at the user's site, but can also be carried out in the manufacturing plant. In the latter case, the reinforcement elements 10, 11, 15 are at least connected, in particular welded, to the basic reinforcement 1, and depending on the static requirements of the ceiling slab to be reinforced, this connection can either be only positive or also non-positive.
  • the reinforcement body according to the invention can be provided with an element plate 16 made of concrete immediately after its manufacture and can be delivered as a so-called prefabricated element ceiling.
  • the concrete layer of the element plate 16 completely covers the basic reinforcement 1.
  • FIG. 4b shows a reinforcement body which corresponds in its embodiment to the reinforcement body shown in FIG. 4a, only the additional reinforcement elements having been omitted.
  • a concrete 17 can either be made in one piece together with the element plate 16 or can only be concreted onto the element plate 16 later, for example, at the user's site. The concrete 17 once fills the rib cavities 9, so that thereby the stiffening ribs of the ceiling slab, on the other hand it covers the distributor reinforcement 2.
  • the distribution reinforcement 2 is interrupted in the area of the rib cavities 9 in order to create space for a lattice girder 11 which, for static and / or reasons related to the manner in which the ceiling slab is manufactured, must be dimensioned such that it projects beyond the distribution reinforcement 2. This is necessary, for example, if the finished ceiling slab must have a very thick concrete 17 for structural reasons or if a large span of the assembly support is desired when concreting the ceiling slab.
  • the additional reinforcement elements 15 are arranged outside the lattice girder 11.
  • the reinforcement body according to the invention is designed in such a way that with one floor slab, the basic reinforcement projects beyond the distributor reinforcement, while with the reinforcement body of the adjacent floor slab, the distribution reinforcement projects beyond the basic reinforcement, or vice versa. Also possible is an embodiment of the reinforcement body according to the invention, in which the basic reinforcement projects over the distributor reinforcement on one side of the reinforcement body and the distribution reinforcement for the basic reinforcement projects over the opposite side of the same reinforcement body. In all cases, an overlap joint is achieved by these embodiments of the reinforcement body according to the invention when a plurality of ceiling panels are arranged adjacent.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP19920890074 1991-04-23 1992-04-01 Reinforcing element for a ceiling panel Ceased EP0511193A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT837/91 1991-04-23
AT0083791A AT396274B (de) 1991-04-23 1991-04-23 Bewehrungskoerper fuer eine deckenplatte

Publications (2)

Publication Number Publication Date
EP0511193A2 true EP0511193A2 (fr) 1992-10-28
EP0511193A3 EP0511193A3 (en) 1993-04-07

Family

ID=3500923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920890074 Ceased EP0511193A3 (en) 1991-04-23 1992-04-01 Reinforcing element for a ceiling panel

Country Status (3)

Country Link
US (1) US5398470A (fr)
EP (1) EP0511193A3 (fr)
AT (1) AT396274B (fr)

Cited By (12)

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WO1994016167A1 (fr) * 1993-01-12 1994-07-21 Avi Alpenländische Veredelungs-Industrie Gesellschaft Mbh Structure de plafond et son procede de fabrication
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EP1106745A3 (fr) * 1999-12-09 2001-08-22 Schwörer Haus KG Elément de plancher préfabriqué avec du polyuréthanne expansé et son procédé de fabrication
EP1529893A3 (fr) * 2003-09-10 2006-06-07 Schwörer Haus KG Elément de plafond du type semi-fini et son procédé de fabrication
ES2325512A1 (es) * 2006-09-06 2009-09-07 Puentes Y Calzadas Grupo De Empresas, S.A. Sistema estructural prefabricado para construir forjados reeticulares.
EP2746015A3 (fr) * 2012-12-19 2014-07-02 Xella Baustoffe GmbH Plaque de construction armée et procédé et dispositif de fabrication de la plaque de construction
CN105220807A (zh) * 2015-10-28 2016-01-06 龙元建设集团股份有限公司 用于现浇砼空心楼盖的箱体空心抗浮装置及方法
CN105625620A (zh) * 2016-03-11 2016-06-01 中国五冶集团有限公司 一种空心板内置模方盒卡紧装置
BE1022899B1 (nl) * 2015-09-02 2016-10-10 SD Building & Engineering - Group bvba Werkwijze voor het vervaardigen van een funderingsplaat en funderingsplaat
ITUB20152940A1 (it) * 2015-08-06 2017-02-06 Emmedue S P A Struttura di pannello edilizio prefabbricato e procedimento per la sua realizzazione
DE102017211092A1 (de) * 2017-06-29 2019-01-03 Ventur GmbH Turm und Verfahren zur Herstellung
FR3103503A1 (fr) * 2019-11-26 2021-05-28 Spurgin Leonhart Elément de construction préfabriqué et procédé de fabrication dudit élément de construction préfabriqué

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ATA83791A (de) 1992-11-15
US5398470A (en) 1995-03-21

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