EP1987211A1 - Element de construction - Google Patents

Element de construction

Info

Publication number
EP1987211A1
EP1987211A1 EP07701323A EP07701323A EP1987211A1 EP 1987211 A1 EP1987211 A1 EP 1987211A1 EP 07701323 A EP07701323 A EP 07701323A EP 07701323 A EP07701323 A EP 07701323A EP 1987211 A1 EP1987211 A1 EP 1987211A1
Authority
EP
European Patent Office
Prior art keywords
wire mesh
wires
barrier layer
component according
mats
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.)
Withdrawn
Application number
EP07701323A
Other languages
German (de)
English (en)
Inventor
Klaus Ritter
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs 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 EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP1987211A1 publication Critical patent/EP1987211A1/fr
Withdrawn legal-status Critical Current

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
    • E04C5/0636—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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/842—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf
    • E04B2/845—Walls made by casting, pouring, or tamping in situ by projecting or otherwise applying hardenable masses to the exterior of a form leaf the form leaf comprising a wire netting, lattice or the like
    • 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
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • 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
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • E04C2002/045—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete with two parallel leaves connected by tie anchors
    • E04C2002/048—Bent wire anchors

Definitions

  • the invention relates to a component consisting of two parallel flat wire mesh mats of intersecting and welded together at the intersections longitudinal and transverse wires of the wire mesh mats in a predetermined, mutually spaced, at each end connected to the two wire mesh mats straight ridge wires, and consists of a between the wire mesh mats and at a predetermined distance parallel to these arranged central element.
  • a device which consists of two parallel welded wire mesh mats, of the wire mesh mats at a predetermined mutual distance, at each end connected to the two wire mesh mats straight ridge wires and one, with its top surfaces parallel to the wire mesh mats and with insulating body.
  • the building element is provided with a layer of concrete or mortar covering the wire mesh mats on its two cover surfaces.
  • This device has the disadvantage that in the middle of the component, a complex insulating body is arranged, which is unnecessary for many applications.
  • a three-dimensional reinforcement element which consists of two smooth, flat outer layers and reinforcement connecting the outer layers.
  • outer layers of wire mesh mats which consist of intersecting and welded together at the crossing points longitudinal and transverse wires.
  • the connecting reinforcement has a plurality of zigzag-shaped longitudinal wires and a plurality of transverse wires welded to the longitudinal wires.
  • Between the outer layers at least one substrate layer is arranged, which serves as a carrier layer for the concrete, plaster or mortar to be sprayed onto the reinforcement element. tel Anlagen serves.
  • This reinforcing element has the disadvantage that the outer layers are located on the outer sides of the component and therefore can not be covered with concrete.
  • the object of the invention is to provide a reinforcing element which avoids the disadvantages of the known reinforcing elements, and can be used for producing a precast element of shotcrete.
  • a component according to the invention of the type described in the introduction is characterized in that the central element consists of a dimensionally stable, thin barrier layer, which is penetrated by the webs and held by them at a predetermined distance from each of the wire mesh mats.
  • the web wires in predetermined directions to the wire mesh mats are alternately inclined in opposite directions, arranged like a façade between the wires of the wire mesh mats.
  • the barrier layer is flush with its edges flush with the wire mesh mats.
  • the barrier layer may in the context of the invention consist of cardboard, plasterboard or plywood, but e.g. also consist of an expanded metal grid.
  • At least one wire mesh mat is designed as a mesh reinforcement mat which has a minimum strength of the welding nodes corresponding to the static requirements of the component, corresponding mechanical strength of the wires of the wire mesh mats and corresponding diameters and geometries. has geneeit distances of the wires, that the web wires are formed as shear reinforcement elements and welded to the wires of at least one of the wire mesh mats with a predetermined minimum weld knot strength.
  • the invention also provides a method for producing a prefabricated element with at least one component, characterized in that an outer shell is applied by spraying in each case to the outer wire mesh mat of the component intended to form the outside of the prefabricated element, which adjoins the barrier layer of the component and enclosing the outer wire mesh mat, and that in each case on the inner wire grid mat of the component intended for forming the inside of the prefabricated element, an inner shell is applied by spraying, which adjoins the barrier layer and surrounds the inner wire mesh mat, the barrier layer in each case acting as an impact surface for the Spraying the outer shell and the inner shell is used.
  • FIG. 2 shows a side view of the component
  • FIG. 3 shows a prefabricated element with outer and inner concrete shell
  • FIG. 4 shows a side view of the finished part element.
  • the component B shown in FIG. 1 has two parallel, flat wire mesh mats M 1 and M 2, which respectively consist of longitudinal and transverse wires L 1, L 2 or Q 1, Q 2 which intersect and which are welded together at the intersection points.
  • the mutual distance of the longitudinal wires Ll, L2 and the cross wires Ql, Q2 to each other is selected according to the static requirements of the component B.
  • the distances are preferably the same size, for example in the range of 50 to Selected 150 mm, so that the respective adjacent longitudinal and transverse wires form square mesh.
  • the meshes of the wire mesh mats Ml, M2 may also be rectangular and, for example, have short side lengths of 50 to 100 mm and long side lengths in the range of 75 to 150 mm.
  • the diameters of the longitudinal and transverse wires L1, L2 and Q1, Q2 are also selectable according to the static requirements and are preferably in the range of 2 to 7 mm.
  • the component B has several, the two wire mesh mats Ml, M2 in a predetermined mutual distance holding straight ridge wires Vl, V2.
  • the web wires V 1, V 2 are welded at their ends to the wires of the two wire mesh mats M 1, M 2, wherein the web wires V 1, V 2 in the context of the invention are either connected to the respective longitudinal wires L 1, L 2 or, as shown in FIG can also be welded to the transverse wires Ql, Q2.
  • the web wires Vl, V2 are alternately inclined in opposite directions, ie arranged in a lattice, whereby the grid body is stiffened against shearing stress. All web wires Vl, V2 form a matrix-like structure in the component B, which gives the component B the required rigidity, so that a dimensionally stable grid body is formed.
  • the distances of the web wires Vl, V2 to each other and their distribution in the component B depend on the static requirement of the component B and are for example along the longitudinal wires 200 mm and along the transverse wires 100 mm, the number of web wires Vl, V2 preferably 50 to 200 per m 2 .
  • the mutual distances of the web wires Vl, V2 in the direction of the longitudinal wires Ll, L2 and the cross wires Ql, Q2 are expediently a multiple of the mesh pitch.
  • the diameter of the web wires Vl, V2 is preferably in the range of 2 to 7 mm. Within the scope of the invention it is possible the diameter of the web wires Vl, V2 greater than the diameters of the wires Ll, Ql; L2, Q2 of the wire mesh mats Ml, M2 to choose.
  • the spatial grid body formed from the two wire mesh mats M1, M2 and the bridge wires V1, V2 must not only be dimensionally stable, but also fulfill the function of a spatial reinforcement element when used as a wall and / or ceiling element, i. Absorb thrust and pressure forces. Therefore, both the longitudinal and transverse wires are common to one another, as is usual with reinforcing mats, as well as the web wires V 1, V 2 with the wires L 1, L 2; Ql, Q2 of wire mesh mats Ml, M2 welded while maintaining a minimum strength of the welding knots.
  • wires Ll, L2; Ql, Q2 of the wire mesh mats Ml, M2 and the web wires Vl, V2 of the component B are made of suitable materials and have corresponding mechanical strength values, so that they as reinforcing wire for use as reinforcing mesh mats mesh Ml, M2 or as the two wire mesh mats Ml, M2 connecting Shear reinforcement elements are used.
  • M2 In the space between the wire mesh mats Ml, M2 is at a predetermined distance from the wire mesh mats Ml, M2 is a dimensionally stable, thin barrier layer T arranged substantially parallel to the wire mesh mats Ml, M2 and at their edges flush with the outer edges of the wire mesh mats , M2 completes.
  • the barrier layer T has the task in the production of a prefabricated element F shown schematically in FIGS. 3 and 4 and described in greater detail below as an impact surface for the concrete to be applied in the spray process of an outer shell Sl and an inner shell S2 of FIG
  • the barrier layer T is preferably arranged centrally to the wire mesh mats Ml, M2, wherein the distance to each Wire mesh mat Ml; M2 is preferably 10 to 30 mm.
  • the barrier layer T is penetrated by the web wires V 1, V 2 and fixed in their position relative to the wire mesh mats M 1, M 2 by the alternately opposite, ie oblique, ie, lattice-like arrangement of the web wires.
  • the barrier layer T may in the context of the invention of cardboard, thin cardboard, made of a thin plywood or gypsum board or other thin, dimensionally stable materials.
  • the barrier layer T can also consist of a close-meshed expanded metal mesh or of a close-meshed, welded wire mesh.
  • these grids must be so tight that these grids represent an effective barrier during spraying of the outer and inner shells Sl, S2 and when spraying the material only very little material can penetrate the barrier layer T.
  • these grids can be equipped with a layer of building paper.
  • the web wires Vl, V2 pierce the barrier layer T, wherein the holes O arise.
  • the holes 0 in the barrier layer T can also be pushed or drilled into the barrier layer T during manufacture of the component B in the production apparatus immediately prior to the attachment of the bridge wires V1, V2.
  • the diameter of the holes O may be only slightly larger than the diameter of the web wires Vl, V2, to represent an effective barrier for the shotcrete.
  • the barrier layer T can be provided in the invention with pre-drilled holes 0 for receiving the web wires Vl, V2.
  • the position and the number and the diameter of the predrilled holes O in the barrier layer T is determined by the oblique ridge wires Vl, V2, which penetrate the barrier layer T.
  • an outer shell Sl is formed on the outer wire mesh mat M1 intended for forming the outside of the finished part element F. applied, which adjoins the barrier layer T and encloses the outer wire mesh mat Ml and forms together with this the supporting component of the precast element F.
  • the thickness of the outer shell Sl is chosen according to the static as well as the sound and heat requirements of the precast element F and is for example 20 to 200 mm. If the prefabricated element F is used as a ceiling element, the minimum thickness of the outer shell S1 must be at least 50 mm for static reasons.
  • the outer shell Sl is preferably made of concrete.
  • An inner shell S2 which adjoins the barrier layer T and encloses the inner wire mesh mat M2, is applied to the inner wire mesh mat M2, which is intended to form the inside of the prefabricated element F.
  • the inner shell S2 can, for example, as well as the outer shell Sl consist of concrete or in the context of the invention also of other materials, such as mortar or plaster, are produced.
  • the thickness of the inner shell S2 is chosen according to the static as well as the sound and heat-technical requirements of the finished part element F and is for example 20 to 200 mm.
  • the inner shell S2 can also be formed so strong in the context of the invention that it forms the supporting component of the finished element F together with the inner wire mesh mat M2.
  • the two shells Sl, S2 are applied at the place of use of the precast element F, for example sprayed by wet or dry method.
  • the barrier layer T serves as a barrier and as an impact surface for the réellespritzenden Concrete.
  • the thickness of the barrier layer T is arbitrary and should be chosen so strong that, depending on the material used, the barrier layer T during spraying of the outer and inner shells Sl or S2 no deformation occurs. In the case of different materials of the outer shell Sl and the inner shell S2, the required thickness of the outer shell Sl and the inner shell S2 also determines the respective distance between the barrier layer T and the wire mesh mats M2, M2, ie the barrier layer T can also be off-center in the context of the invention Wire mesh Ml, M2 can be arranged.
  • plaster support gratings may also be used within the scope of the invention, which lie on the top surfaces of the barrier layer T and are fixed on the barrier layer T by the bridge wires V1, V2.
  • the plaster carrier grid consist for example of a fine-mesh welded or woven wire mesh with a mesh size of for example 10 to 25 mm and wire diameters in the range of 0.8 to 1 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne un élément de construction constitué de deux treillis de fils (M1, M2) parallèles et plats constitués de fils longitudinaux et de fils transversaux (L1, L2; Q1, Q2) qui se croisent et sont soudés les uns aux autres aux points de croisement, de fils rectilignes d'entretoise (V1, V2) qui maintiennent les treillis de fils à une distance mutuelle prédéterminée et dont chaque extrémité est reliée à un treillis de fils, ainsi que d'un élément central disposé entre les treillis de fils à distance prédéterminée et parallèlement à ceux-ci, formé d'une mince couche de barrière (T) de forme stable qui est traversée par les fils d'entretoise et qui est maintenue par ces derniers à une distance prédéterminée de chacun des treillis de fils.
EP07701323A 2006-02-22 2007-02-14 Element de construction Withdrawn EP1987211A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2912006A AT503489B1 (de) 2006-02-22 2006-02-22 Bauelement
PCT/AT2007/000079 WO2007095653A1 (fr) 2006-02-22 2007-02-14 Element de construction

Publications (1)

Publication Number Publication Date
EP1987211A1 true EP1987211A1 (fr) 2008-11-05

Family

ID=37969585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07701323A Withdrawn EP1987211A1 (fr) 2006-02-22 2007-02-14 Element de construction

Country Status (4)

Country Link
EP (1) EP1987211A1 (fr)
AT (1) AT503489B1 (fr)
WO (1) WO2007095653A1 (fr)
ZA (1) ZA200708752B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3086308B1 (fr) * 2018-09-25 2021-01-29 Spurgin Leonhart Element de construction prefabrique du type mur a coffrage integre
DE102021117171A1 (de) 2021-07-02 2023-01-05 Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Körperschaft des öffentlichen Rechts Verfahren und System zum Erzeugen einer Wand

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609660C3 (de) * 1966-01-29 1973-09-13 Ernst Dr.-Ing. 4300 Essen Haeussler Wandbauplatte
BE804565A (nl) * 1973-09-07 1974-03-07 Bekaert Sa Nv Driedimensionele wapening
FR2327045A1 (fr) * 1975-10-09 1977-05-06 Int Etud Tech Archit Centre Procede de fabrication d'elements en beton arme
AU4726279A (en) * 1979-05-22 1980-11-27 Christopher Allen Rockstead Box beam building structure
FR2564879B1 (fr) * 1984-05-22 1988-02-26 Brami Max Procede pour l'edification de murs de constructions et elements de structure pour la mise en oeuvre de ce procede
AT406064B (de) * 1993-06-02 2000-02-25 Evg Entwicklung Verwert Ges Bauelement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007095653A1 *

Also Published As

Publication number Publication date
WO2007095653A1 (fr) 2007-08-30
AT503489B1 (de) 2009-12-15
AT503489A1 (de) 2007-10-15
ZA200708752B (en) 2009-04-29

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