EP2912239B1 - Élément d'armature pour la fabrication d'éléments de construction en béton précontraint, élément de construction en béton et procédé de fabrication - Google Patents

Élément d'armature pour la fabrication d'éléments de construction en béton précontraint, élément de construction en béton et procédé de fabrication Download PDF

Info

Publication number
EP2912239B1
EP2912239B1 EP12766940.6A EP12766940A EP2912239B1 EP 2912239 B1 EP2912239 B1 EP 2912239B1 EP 12766940 A EP12766940 A EP 12766940A EP 2912239 B1 EP2912239 B1 EP 2912239B1
Authority
EP
European Patent Office
Prior art keywords
fibers
concrete
reinforcing element
holding elements
holding
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.)
Active
Application number
EP12766940.6A
Other languages
German (de)
English (en)
Other versions
EP2912239A1 (fr
Inventor
Josef Peter Kurath-Grollmann
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.)
CPC AG
Original Assignee
CPC AG
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 CPC AG filed Critical CPC AG
Priority to PT231582768T priority Critical patent/PT4206413T/pt
Priority to PL12766940.6T priority patent/PL2912239T3/pl
Priority to HUE12766940A priority patent/HUE062126T2/hu
Priority to DK23158276.8T priority patent/DK4206413T3/da
Priority to EP23158276.8A priority patent/EP4206413B1/fr
Publication of EP2912239A1 publication Critical patent/EP2912239A1/fr
Application granted granted Critical
Publication of EP2912239B1 publication Critical patent/EP2912239B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E04C5/127—The tensile members being made of fiber reinforced plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • 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
    • 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
    • E04C2/06—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 reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E04C5/073—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/085—Tensile members made of fiber reinforced plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2103/00—Material constitution of slabs, sheets or the like
    • E04B2103/02—Material constitution of slabs, sheets or the like of ceramics, concrete or other stone-like material

Definitions

  • the present invention relates to a reinforcement element for the production of prestressed concrete components. Furthermore, the invention relates to a prestressed concrete component and manufacturing method for the reinforcement element and the prestressed concrete component.
  • Prestressed concrete slabs are known from the prior art. For example disclosed US 2002/0059768 A1 a method for producing a prestressed concrete slab using tensioned wire ropes. To generate the tension, the wire ropes are wound around opposite bolts and then tensioned by moving the bolts apart. This results in a pre-tension of approx. 70% of the breaking strength of the wire rope.
  • Another reinforcement element is from the U.S. 2010/132282 A1 and the U.S. 2007/175583 A1 known.
  • the object of the present invention is to specify an improved reinforcement element for the production of prestressed concrete components, an improved concrete component and improved production methods for the reinforcement element and the prestressed concrete component.
  • the present invention relates to a reinforcement element for the production of prestressed concrete components, with a large number of fibers and several holding elements which are connected to one another by the fibers so that the fibers can be tensioned in their longitudinal direction by means of the holding elements.
  • the fibers which have a net cross-sectional area of less than 5 mm 2 and are coated with a granular material, in particular sand, and form an essentially flat layer in the holding elements (14), are attached to the holding elements by lamination or laminating and clamps fastened in such a way that the fibers in the tensioned state open out largely in a straight line into the holding elements. This achieves both high prestressing and efficient, reliable and therefore cost-effective production of the concrete components.
  • fiber includes both a single or several elongated and flexible reinforcement elements for concrete components, for example a single filament - also called single filament or monofilament - or a bundle of filaments - also called multifilament, multifilament yarn, yarn or - in the case of stretched filaments - roving.
  • the term fiber also includes a single wire or multiple wires.
  • the fibers can also be used individually or coated together and/or the fiber bundle may be stranded or twisted.
  • the net cross-sectional area of the fibers is less than about 5 mm 2 , and specifically ranges from about 0.1 mm 2 to about 1 mm 2 .
  • the tensile elongation of the fibers is greater than about 1%.
  • the tensile strength of the fibers, based on their net cross-sectional area is greater than approximately 1000 N/mm 2 , in particular greater than approximately 1800 N/mm 2 .
  • the reinforcement elements according to the invention are first laid in a mold and then the fibers are stretched by pulling the corresponding holding elements apart.
  • the concrete component is then cast, with the parts of the fibers lying inside the mold being embedded in concrete.
  • the tension previously applied to the fibers is released, with the tension in the cast-in parts of the fibers being maintained, since the cast-in fiber parts are frictionally connected to the concrete and there is practically no relative displacement between these fiber parts and the concrete.
  • the non-positive connection is based - among other things - on the wedging of the fibers in their concrete coating (Hoyer effect).
  • the projecting from the concrete component stress-free parts of the fibers can be separated and together with the Holding elements are removed.
  • the prestress is therefore generated by the tension of the fibers embedded in concrete.
  • connection between fibers and concrete can be strengthened by a variety of means, for example by increasing the surface roughness of the fibres.
  • this connection is designed in such a way that the full dimensioning tensile force can be transmitted via the mechanical shear connection after 200 mm, in particular after 100 mm, further after in particular 70 mm, binding length (i.e. length of the fibers embedded in concrete).
  • the fibers of the reinforcing element according to the invention can be made from a large number of different materials, in particular from non-corrosive material and more particularly from alkali-resistant material.
  • this material is a polymer like carbon, but also glass, steel or natural fibers.
  • the fibers are made of carbon.
  • Carbon fibers have the advantage that they are very durable, which means that there is no noticeable loss of strength even over decades.
  • carbon fibers are corrosion-resistant, in particular they do not corrode on the surface of the concrete components, and are practically invisible. This means that the carbon fibers can often be left on the surface of the concrete components. However, they can also be removed with ease, for example by breaking them off or simply stripping them off.
  • Fastening the fibers “in” the holding elements includes a wide variety of fastening options, in particular also fastening the fibers “to” or “on” the holding elements, for example laminating the fibers without further covering.
  • both a high prestressing of the concrete components and an efficient, reliable and simple handling of the reinforcing elements are achieved.
  • the concrete components can be produced particularly inexpensively.
  • the following is achieved: Due to the fact that the fibers flow in a largely straight line with respect to their longitudinal direction, ie the fibers continue to flow evenly into the holding elements, transverse stresses in the fibers are largely avoided. Such transverse stresses often lead to fiber breaks and occur, for example, at kinks, jams or tight curve radii, i.e. typically with deflection webs, deflection rollers or guide bolts.
  • the fibers can be stressed at a stress of from about 50% to about 95% of the breaking stress of the fibers.
  • the fibers can be stressed with at least about 80%, more preferably at least about 90%, of the breaking stress of the fibers.
  • the thickness of the concrete component to be produced is in the range from approx. 10 mm to 60 mm, in particular approx. 15 mm to 40 mm.
  • the surface area of the concrete component is at least approx. 10 m x 5 m, in particular at least approx. 10 m x 10 m, more particularly at least approx. 15 m x 15 m.
  • the length of the concrete component is at least approx m, further in particular at least approx. 12 m.
  • the reinforcing elements can be produced as intermediate products at a first location, possibly packed in appropriate transport containers and transported to another location for the production of the concrete parts become. At the other location, for example in a concrete production plant, the reinforcement elements that have been delivered are then directly available as prefabricated components.
  • connection of the fibers to the holding elements according to the invention results in a robust and space-saving unit, which is therefore easy to transport.
  • the fibers are individual fibers and/or comprise one or more rovings, in particular carbon rovings.
  • Individual fibers are to be understood as meaning individual fibers that are not directly connected.
  • a continuous fiber assembly is seen where the reciprocating portions of the fiber assembly are connected via loops.
  • roving means a bundle of stretched filaments.
  • a roving also referred to as a stretched yarn, typically comprises a few thousand filaments, in particular approximately 2,000 to approximately 16,000 filaments. Due to the roving, the tensile forces acting on the fibers are distributed largely evenly over a large number of filaments, so that local peak loads are largely avoided.
  • the filaments of the roving have a small fiber diameter, so that a correspondingly large surface-to-diameter ratio and thus a good bond between the concrete and the filaments is achieved. Furthermore, a good shear transmission and a good distribution of the tensile load on the concrete are achieved.
  • the fibers are produced from an arrangement of several rovings, which comprises 2 to 10, in particular 2 to 5, individual rovings.
  • these fibers have about 4,000 to about 160,000 filaments.
  • the holding elements have guide elements for the fibers, in particular a clamping device and/or a carrier for laminating the fibers in the end region, in particular a fiber-reinforced polymer matrix, more particularly a polyester matrix. Good power transmission is achieved by these guide elements. In addition, a particularly space-saving and robust unit is achieved through the lamination.
  • the holding elements can also be designed as double-sided adhesive tape.
  • the fibers in the holding elements form an essentially planar layer and, in one embodiment, are arranged in particular largely parallel and/or largely evenly spaced from one another.
  • the reinforcement element has the shape of a track or a harp. This form is easily stacked or rolled up, optionally using interleaving sheets to keep the respective fibers separate. This means that reinforcement elements are easy to transport.
  • Such a harp-shaped reinforcement element has the advantage over a lattice (grid) that no knotting occurs and thus very high tensile loads can be achieved.
  • lattice grid
  • the reinforcement element has additional spacers which connect the fibers to one another, for example in the form of transverse threads and/or a fabric, so that there is a distance between the individual fibers even when the reinforcement element is not tensioned or is only partially tensioned. This largely or completely prevents the slack fibers from becoming tangled.
  • These spacers thus serve as an assembly aid and/or transport aid. When concreted in, the spacers absorb practically no tensile loads.
  • the distance between the reinforcements is about 5 mm to about 40 mm, in particular about 8 mm to about 25 mm, and/or at least 10, in particular at least 40 fibers are fixed in each of the holding elements.
  • the reinforcement distance ie the distance between two adjacent fibers, is less than or equal to twice the thickness of the concrete component.
  • the fibers are impregnated with an alkali-resistant polymer, in particular with a resin, more particularly with a vinyl ester resin. This increases the tensile strength of the fibers.
  • the fibers are coated with a granular material, in particular with sand. This improves the bond between the fibers and the concrete and thus increases the resistance of the prestressing in the concrete component.
  • the fibers are fastened to the holding elements in such a way that, in the tensioned state, the fibers continue largely in a straight line in the holding elements, in particular over a distance of at least approx. 5 mm, more particularly at least approx. 10 mm. This achieves good power transmission between the fibers and the holding elements.
  • the holding elements have means for force distribution, in particular running transversely to the direction of the fibers, in particular a curvature and/or a profile. This achieves good distribution of the acting forces and thus high tensile stress and/or low stress on the fibers during tensioning. In addition, this shortens the binding length, that is, shortens the length required for reliable attachment of the fibers to the holding elements.
  • the curvature of the holding element is designed in such a way that the curved fibers each define planes that are arranged largely parallel, in particular perpendicular to the position of the fibers. If the fibers are arranged in a horizontal position, their fiber ends are curved vertically downwards or upwards, for example.
  • the profiling achieves a good non-positive connection between the holding element and the clamping device.
  • the pressure on the holding element and/or on the fibers can thus be reduced.
  • the profiling is arranged on at least one of those surfaces of the holding element which is provided for fastening the holding element in a clamping device.
  • the Profiling wavy or jagged, especially saw-toothed.
  • its width is greater than 0.4 m, in particular greater than 0.8 m, and/or its length is greater than 4 m, in particular greater than 12 m. Efficient production of large concrete components is thereby achieved. For example, a 20 m x 20 m concrete slab can be produced in one work cycle.
  • the holding element is severed after being connected to the fibers, in particular in the middle, so that the two sections produced in turn form two holding elements for two reinforcing elements produced in succession.
  • the first section forms the end of a first reinforcement element and the second section forms the beginning of the subsequent reinforcement element.
  • the holding element is designed as a double holding element, with an open intermediate area between the two parts of the double holding element in which the fibers are exposed.
  • the previously mentioned severing of the holding element can be done by simply severing the fibers in this intermediate area, for example by breaking.
  • efficient separation is achieved during production, in particular in series production, of the reinforcement elements.
  • the retaining element is fastened while the fibers are being pulled out together, in particular by moving the retaining element in synchronism with the movement of the fibers.
  • the retaining element is fastened by fastening an upper part and a lower part of the retaining element from opposite sides of the fibers, in particular by assembling glass fiber mats.
  • the fibers are arranged by placing the fibers on a first part of the holding element and fixing the fibers by adding a second part of the holding element and by pressing these two parts together. As a result, the fibers are firmly enclosed by the holding elements, so that a particularly strong and robust attachment is achieved.
  • the present invention relates to a prestressed concrete component, in particular a concrete slab, which was produced using at least one reinforcing element according to the invention, the prestressing of the concrete component being at least 50%, in particular at least 80%, more in particular at least 90%, of the breaking stress of the fibers.
  • the present invention further relates to a concrete component, in particular a concrete slab, comprising a large number of fibers which are tensioned in their longitudinal direction.
  • the Fibers have a net cross-sectional area of less than 5 mm 2 , are coated with a granular material, in particular sand, and form at least one essentially planar layer, with the prestressing of the concrete component being at least 50%, in particular at least 80%, more particularly at least 90%, the breaking stress of the fibers.
  • this concrete component is produced using a large number of reinforcing elements according to the invention, in particular arranged in groups. Due to the arrangement in groups, an improved adaptation to the conditions of the concrete component is achieved.
  • a grouping can be achieved by one or more horizontal and/or vertical distances or by an angular, in particular right-angled, arrangement.
  • the fibers are pretensioned by tensioning in sections, in particular individually for each of the reinforcement elements used.
  • the preload can be flexibly adjusted to specific requirements.
  • the reinforcement distance ie the distance between two adjacent fibers, is less than or equal to twice the thickness of the concrete component, in particular less than or equal to twice the plate thickness.
  • the method according to the invention is particularly suitable for the production of large prestressed concrete components, for example for concrete slabs approximately 20 m wide and approximately 20 m long.
  • these large prestressed concrete components can then be subdivided into smaller prestressed concrete components, since the prestressing of the concrete components is always maintained during division.
  • the smaller concrete components can then be individually cut to size, for example by sawing, CNC milling or water jet cutting, in order to produce, for example, specially shaped floor panels, stair treads or panels for table tennis tables.
  • such a subdivision can be achieved by using separating elements, in particular a foam.
  • the at least one reinforcement element is provided by arranging several of the reinforcement elements in one layer, in particular by largely parallel and/or adjacent ones To lay next to each other. This means that large areas can be set up efficiently.
  • the at least one reinforcement element is provided by arranging the reinforcement elements in at least two layers, with the reinforcement elements in adjacent layers being aligned at an angle, in particular largely at right angles. This achieves an efficient and flexible set-up of a complex reinforcement.
  • the at least one reinforcement element is provided by stacking several of the reinforcement elements on top of one another.
  • this additionally includes the step of introducing a separating element, in particular a foam, before the concrete component is cast in concrete.
  • a separating element in particular a foam
  • a foam offers a very flexible, easy to use and inexpensive partition.
  • the foam offers an aid for positioning the fibers and/or fixing the fibers during concreting.
  • a solid material can also be used as a separating element, for example rubber or styrofoam.
  • this additionally includes the step of separating the concrete component after concreting, in particular by breaking and/or sawing. Since the foam does not make a significant contribution to the strength, the individual subdivisions of the concrete component are practically only held together by the fibers. The concrete components can thus be easily separated, in particular by simply breaking them. This achieves a breakdown into manageable parts in a convenient and very efficient way. For example, these parts can be distributed from a production plant for concrete components to other work stations and brought into the final form there.
  • FIG. 1 shows a simplified schematic representation of an embodiment of the inventive reinforcement element 10 in the stretched state.
  • Such a reinforcement element 10 is used to produce prestressed concrete components.
  • the reinforcement element 10 comprises ten individual fibers, which in this example are carbon fibers 12 (only partially designated) are formed, and two holding elements in the form of two carriers 14.
  • the carriers 14 are arranged at a distance from one another and are connected to one another by the ten carbon fibers 12.
  • the carbon fibers 12 can be tensioned in their longitudinal direction T by pulling the carriers 14 apart.
  • the carbon fibers 12 are preferably fastened in the supports 14 in such a way that the stretched carbon fibers 12 open into the supports 14 in a straight line. Furthermore, the carbon fibers 12 form an essentially planar layer, in which the carbon fibers 12 are arranged largely parallel and at a largely even distance from one another. As a result, the reinforcement element 10 has the shape of a harp. In this example, the distance between the reinforcements, i.e. the distance between the carbon fibers 12 arranged in parallel, is approximately 10 mm and the width of the reinforcement element 10 is therefore approximately 10 cm.
  • Each of the carbon fibers 12 comprises a carbon roving, ie a bundle of a few thousand stretched filaments arranged next to one another and essentially aligned in the same way (approx. 2,000 to approx. 16,000 filaments). These filaments and thus also the carbon fibers 12 are impregnated with an alkali-resistant resin in the form of vinyl ester resin, so that the carbon fibers 12 form a compact unit, similar to a metal wire.
  • the impregnation can, for example, by means of a Take place immersion bath through which the roving for the production of the carbon fibers 12 is pulled.
  • the carbon fibers 12 are coated with sand, so that an improved connection between fibers and concrete is achieved.
  • the full dimensioning tensile force can be transmitted via the mechanical shear connection.
  • the carriers 14 each have two openings 16 (shown in dashed lines) by means of which the carriers 14 can be positioned on a clamping device (not shown). With the clamping device, the carbon fibers 12 can be aligned precisely during the production of the concrete components, in particular without horizontal and/or vertical tilting.
  • the carrier 14 has a hole or a multiplicity of holes, in particular more than two holes, for positioning the carrier 14 .
  • carrier 14 is manufactured using inexpensive materials.
  • An exemplary material composition and the corresponding production of the carrier 14 is based on 2 described.
  • Other materials can also be used since the carrier 14 is not part of the concrete component to be produced and is usually separated and removed after concreting.
  • FIG 2 shows a simplified schematic detail view of a carrier 14 according to FIG 1 .
  • the carrier 14, also referred to as a patch, comprises a fiber-reinforced polymer matrix in the form of a polyester matrix with fibers enclosed therein in the form of two glass fiber mats.
  • This polyester matrix encloses the stretched carbon fibers 12 in their end areas.
  • the size of this polyester matrix is about 10 cm x 10 cm and the total thickness is about 2 mm.
  • the length of the polyester matrix in the direction of the carbon fibers 12 is between approximately 10 cm and approximately 20 cm.
  • the fiber mats form a lower and an upper layer, the stretched carbon fibers 12 being arranged between these layers and fixed therein by lamination with polyester.
  • the polyester matrix therefore forms a rectilinear guide element for the carbon fibers 12 (indicated by dashed lines), with the carbon fibers 12 continuing largely rectilinearly within the polyester matrix, ie within the carrier 14 .
  • the carbon fibers 12 are fixed in their mutual arrangement by means of the carrier 14, namely in a flat position, largely parallel and spaced evenly apart from one another.
  • the ends of the carbon fibers 12 protrude a little beyond the supports 14 on the exit side of the supports 14 .
  • the fibers 12 can also end in the carrier 14 or flush on its surface, for example if the carrier 14 has been separated from a larger unit.
  • the carrier 14 forms a compact and robust unit together with the carbon fibers 12 .
  • FIG. 12 shows a simplified schematic representation of an intermediate stage in the manufacture of a prestressed concrete slab 20, for example in a prefabricated concrete slab plant.
  • the intermediate state corresponds to an arrangement after the preparatory work has been completed, but before the concrete slab 20 is poured.
  • the arrangement comprises a concreting table (not shown), a hollow frame 30 arranged thereon and a multiplicity of identical reinforcing elements 10 according to the invention (in some cases only indicated schematically). Together with the surface of the concreting table, the hollow frame 30 forms a mold for the concrete, also called a prestressing bed.
  • the reinforcement elements 10 each have a large number of carbon fibers 12 (for the sake of clarity, only the outer fibers are shown in some cases) and two carriers 14 and largely correspond in their structure to the reinforcement elements 10 according to FIG 1 .
  • the length of the carbon fibers 12 is approximately 20 m and the width of the carrier 14 is approximately 1 m.
  • the distance between the reinforcements corresponds to the previous example, ie as in FIG 1 approx. 10 mm, so that approx. 100 carbon fibers 12 are fastened to the carriers 14 in each case.
  • the carriers 14 are each pulled apart, so that the carbon fibers 12 are in the hollow frame 30 in the stretched state.
  • the carbon fibers 12 are guided outwards through the hollow frame 30, so that the ends of the carbon fibers 12 and the supports 14 are outside of the hollow frame 30, for example at a distance of 30 cm from the hollow frame 30.
  • the passage channels are also formed by corresponding gaps between the lower part and the upper part of the hollow frame 30 .
  • the hollow frame 30 is constructed from a plurality of slats lying one above the other, so that the carbon fibers 12 can be guided through the interstices of the individual slats.
  • the gaps can also be sealed with foam rubber and/or brush hairs.
  • the height of the superimposed bars is 3mm, 12mm and 3mm.
  • the first half of the reinforcing elements 10 are in a first layer, parallel and adjacent to each other and the second half of the reinforcing elements 10 are in a second layer, also parallel and adjacent to but perpendicular to the reinforcing elements 10 of the first layer.
  • the reinforcing elements 10 are thus superimposed in separate layers and in the two adjacent ones Layers aligned at right angles to each other.
  • the reinforcement elements 10 therefore form both a longitudinal reinforcement and a transverse reinforcement, but without individual interweaving of the individual carbon fibers 12.
  • the carriers 14 are pulled apart, for example with a clamping device, also called a prestressing system, or manually with a torque wrench (not shown).
  • a stress of at least approx. 30 kN/m or at least approx. 300 kN/m is generated, depending on the load requirements on the concrete slab (dimensioning force).
  • concrete can be poured into the hollow frame 30 prepared in this way in order to concrete the concrete slab 20 in one operation.
  • the parts of the tensioned carbon fibers 12 which are located in the hollow frame 30 are enclosed by the concrete and thus embedded in concrete.
  • SCC fine concrete at least C30/37 according to the SIA SN505 262 standard
  • the concrete can also be introduced into the hollow frame 30 by spraying or spatula and evenly distributed by vibration.
  • the concrete slab 20 can be removed from the hollow frame 30 .
  • the concreted carbon fibers 12 the static reinforcement of the concrete slab 20.
  • the parts of the carbon fibers 12 protruding from the concrete are broken off at the edges of the concrete slab 20 and removed together with the supports 14.
  • the concrete slab produced is approximately 6 mx 2.5 m in size and the reinforcement content of this concrete slab 20 is more than 20 mm 2 /m width. In another example, the concrete slab produced is about 7 mx about 2.3 m.
  • FIG 4 14 shows a simplified schematic side view of a carrier 14 according to FIG 2 .
  • the carbon fibers 12 flow straight into the carrier 14. Furthermore, the carbon fibers 12 continue in a straight line inside the carrier 14, so that the carrier 14 forms a straight guide for the carbon fibers 12.
  • the length of the carrier 14 in the direction of the carbon fibers 12 is approximately 3 cm.
  • the carrier 14 can additionally have a profile 16 (shown in dashed lines).
  • a serrated profile 16 is arranged on a first (upper) surface and on the opposite (lower) surface of the carrier 14 . These surfaces are provided for mounting the carrier 14 in a fixture (not shown), for example by clamping.
  • the jagged profiling 16 achieves a non-positive connection between the carrier 14 and the clamping device in the form of teeth.
  • FIG. 5 shows a representation according to 3
  • a subdivision is also made in that a construction foam 40 (shown as a wavy line) is foamed as a separating element both on the bottom of the hollow mold and under and over the carbon fibers 12.
  • This subdivision means that no or only a negligible amount of the poured concrete can penetrate into the space occupied by the subdivision.
  • the construction foam 40 offers a fixation of the fibers during concreting.
  • the concrete slab 20 can be broken into individual raw slabs along the construction foam subdivisions. These raw panels can then be processed further, for example by cutting the raw panels into the desired shape using a circular saw.
  • the concrete slab produced is approx. 20 mx approx. 20 m and its thickness is approx. 20 mm.
  • 3 table tennis tables can then be sawn from these smaller slabs.
  • FIG 6 14 shows a simplified schematic side view of a carrier 14 according to FIG 2 , but this has a means for force distribution in the form of a bend 18.
  • the carbon fibers 12 flow straight into the carrier 14 and then run inside the carrier 14, corresponding to the curvature 18 of the carrier 14, also with a curvature.
  • the carbon fibers 12 are fastened in the entry area of the carrier 14 in such a way that the carbon fibers 12 continue largely in a straight line into the carrier 14 over a distance d of 10 mm. This shape achieves both good introduction of the fibers into the carrier 14 and an even distribution of the forces to be absorbed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (17)

  1. Élément d'armature (10) pour fabriquer des éléments en béton précontraint (20) comprenant une pluralité de fibres (12) et plusieurs éléments de retenue (14) raccordés entre eux par les fibres (12), de sorte que les fibres (12) peuvent être tendues dans leur sens longitudinal (T) à l'aide des éléments de retenue (14),
    caractérisé en ce que les fibres (12) présentent une aire de la section nette inférieure à 5 mm2, en ce qu'elles sont recouvertes d'un matériau granuleux, en particulier du sable, en ce qu'elles forment dans les éléments de retenue (14) une couche sensiblement plane et en ce qu'elles sont fixées aux éléments de retenue (14) par laminage ou par laminage et serrage de telle sorte que les fibres (12) débouchent, à l'état tendu, en grande partie de façon rectiligne dans les éléments de retenue (14).
  2. Élément d'armature (10) selon la revendication 1, dans lequel les fibres (12) sont des fibres individuelles et/ou comprennent un ou plusieurs rovings, en particulier des rovings de carbone.
  3. Élément d'armature (10) selon la revendication 1 ou 2, dans lequel les éléments de retenue (14) présentent des éléments de guidage pour les fibres (12), en particulier un dispositif de serrage et/ou un support pour laminer les fibres (12) dans la zone d'extrémité, en particulier une matrice polymère renforcée par des fibres, plus particulièrement une matrice en polyester.
  4. Élément d'armature (10) selon l'une des revendications précédentes, dans lequel les fibres (12) sont agencées dans les éléments de retenue (14) en grande partie parallèles et/ou espacées de manière sensiblement égale.
  5. Élément d'armature (10) selon l'une des revendications précédentes, la distance d'armature étant d'environ 5 mm à environ 40 mm, en particulier d'environ 8 mm à environ 25 mm, et/ou au moins 10, en particulier au moins 40 fibres (12) étant fixées dans les éléments de retenue (14).
  6. Élément d'armature (10) selon l'une des revendications précédentes, dans lequel les fibres (12) sont fixées aux éléments de retenue (14) de telle sorte que les fibres (12), à l'état tendu, se poursuivent en grande partie de façon rectiligne dans les éléments de retenue (14), en particulier sur une distance (d) d'au moins environ 5 mm, plus particulièrement d'au moins environ 10 mm.
  7. Élément d'armature (10) selon l'une des revendications précédentes, dans lequel les éléments de retenue (14) présentent un moyen s'étendant en particulier transversalement par rapport au sens des fibres (12) pour répartir la force, en particulier une courbure (18) et/ou un profilage (16).
  8. Élément d'armature (10) selon l'une des revendications précédentes, la largeur de cet élément étant supérieure à 0,4 m, en particulier supérieure à 0,8 m, et/ou la longueur de cet élément étant supérieure à 4 m, en particulier supérieure à 12 m.
  9. Procédé pour fabriquer un élément d'armature pour des éléments en béton précontraint (20), comprenant les étapes consistant à :
    - fournir des fibres tendues (12) en tirant ensemble une pluralité de fibres (12) espacées les unes des autres, les fibres (12) présentant une aire de la section nette inférieure à 5 mm2 et étant recouvertes d'un matériau granuleux, en particulier du sable ; et
    - fixer un élément de retenue (14) aux fibres tendues (12) par laminage ou serrage et laminage pour fixer les fibres (12) dans leur agencement mutuel, notamment en ce qui concerne la distance et/ou l'orientation, les fibres (12) formant dans l'élément de retenue (14) une couche sensiblement plane.
  10. Procédé pour fabriquer un élément d'armature pour des éléments en béton précontraint (20), comprenant les étapes consistant à :
    - recouvrir les fibres d'un matériau granuleux, en particulier du sable ; fournir des fibres tendues (12) en tirant ensemble une pluralité de fibres (12) espacées les unes des autres, les fibres (12) présentant une aire de la section nette inférieure à 5 mm2 ; et
    - fixer un élément de retenue (14) aux fibres tendues (12) par laminage ou par serrage et laminage pour fixer les fibres (12) dans leur agencement mutuel, notamment en ce qui concerne la distance et/ou l'orientation, les fibres (12) formant dans l'élément de retenue (14) une couche sensiblement plane.
  11. Procédé selon la revendication 9 ou 10, dans lequel la fixation de l'élément de retenue (14) intervient pendant que les fibres (12) sont tirées ensemble, en particulier en déplaçant l'élément de retenue (14) de façon synchrone par rapport au déplacement des fibres (12).
  12. Élément en béton (20), en particulier plaque de béton avec au moins un élément d'armature (10) selon l'une des revendications 1 à 8, la précontrainte de l'élément en béton (20) étant d'au moins 50 %, en particulier d'au moins 80 %, plus particulièrement d'au moins 90 % de la contrainte de rupture des fibres (12).
  13. Élément en béton (20), en particulier plaque de béton, comprenant une pluralité de fibres (12) tendues dans leur sens longitudinal (T), caractérisé en ce que les fibres (12) présentent une aire de la section nette inférieure à 5 mm2, en ce qu'elles sont recouvertes d'un matériau granuleux, en particulier du sable, et en ce qu'elles forment au moins une couche sensiblement plane, la précontrainte de l'élément en béton (20) étant d'au moins 50 %, en particulier d'au moins 80 %, plus particulièrement d'au moins 90 % de la contrainte de rupture des fibres (12).
  14. Procédé pour fabriquer un élément en béton précontraint (20), comprenant les étapes consistant à :
    - fournir au moins un élément d'armature (10) selon l'une des revendications 1 à 8 ;
    - tendre les fibres (12) de l'élément d'armature (10) en tirant les éléments de retenue correspondants (14) ; et
    - bétonner l'élément en béton (20) en coulant au moins partiellement les fibres tendues (12) dans le béton.
  15. Procédé selon la revendication 14, dans lequel la fourniture du au moins un élément d'armature se fait en agençant plusieurs desdits éléments d'armature (10) dans une couche, en particulier en les agençant de façon essentiellement parallèle et/ou adjacente entre eux.
  16. Procédé selon la revendication 14, dans lequel la fourniture du au moins un élément d'armature (10) se fait en agençant les éléments d'armature (10) dans au moins deux couches, l'orientation des éléments d'armature (10) dans les couches adjacentes se faisant selon un angle donné, en particulier en grande partie à angle droit.
  17. Procédé selon l'une des revendications 14 à 16, ce dernier comprenant en outre l'étape consistant à introduire un élément de séparation, en particulier une mousse (40) avant de couler l'élément en béton (20) dans le béton.
EP12766940.6A 2012-09-17 2012-09-17 Élément d'armature pour la fabrication d'éléments de construction en béton précontraint, élément de construction en béton et procédé de fabrication Active EP2912239B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PT231582768T PT4206413T (pt) 2012-09-17 2012-09-17 Componentes de betão pré-esforçado e método para produzir componentes de betão pré-esforçado
PL12766940.6T PL2912239T3 (pl) 2012-09-17 2012-09-17 Element zbrojeniowy do wytwarzania sprężonych elementów betonowych, element betonowy i sposób wytwarzania
HUE12766940A HUE062126T2 (hu) 2012-09-17 2012-09-17 Erõsítõ elem elõfeszített beton alkatrészek elõállításához, beton alkatrész és gyártási eljárás
DK23158276.8T DK4206413T3 (da) 2012-09-17 2012-09-17 Forspændte betonelementer og fremgangsmåde til fremstilling af forspændte betonelementer
EP23158276.8A EP4206413B1 (fr) 2012-09-17 2012-09-17 Éléments de construction en béton précontraint et procédé de fabrication d'éléments de construction en béton précontraint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/068237 WO2014040653A1 (fr) 2012-09-17 2012-09-17 Élément d'armature pour la fabrication d'éléments de construction en béton précontraint, élément de construction en béton et procédé de fabrication

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP23158276.8A Division EP4206413B1 (fr) 2012-09-17 2012-09-17 Éléments de construction en béton précontraint et procédé de fabrication d'éléments de construction en béton précontraint

Publications (2)

Publication Number Publication Date
EP2912239A1 EP2912239A1 (fr) 2015-09-02
EP2912239B1 true EP2912239B1 (fr) 2023-03-15

Family

ID=46968179

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12766940.6A Active EP2912239B1 (fr) 2012-09-17 2012-09-17 Élément d'armature pour la fabrication d'éléments de construction en béton précontraint, élément de construction en béton et procédé de fabrication
EP23158276.8A Active EP4206413B1 (fr) 2012-09-17 2012-09-17 Éléments de construction en béton précontraint et procédé de fabrication d'éléments de construction en béton précontraint

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP23158276.8A Active EP4206413B1 (fr) 2012-09-17 2012-09-17 Éléments de construction en béton précontraint et procédé de fabrication d'éléments de construction en béton précontraint

Country Status (15)

Country Link
US (2) US9938721B2 (fr)
EP (2) EP2912239B1 (fr)
JP (1) JP6198832B2 (fr)
KR (1) KR102073598B1 (fr)
CN (2) CN109281439A (fr)
AU (1) AU2012389581B2 (fr)
CA (1) CA2884137C (fr)
DK (2) DK2912239T3 (fr)
ES (2) ES2942845T3 (fr)
FI (2) FI2912239T3 (fr)
HU (2) HUE062126T2 (fr)
PL (2) PL2912239T3 (fr)
PT (2) PT4206413T (fr)
RU (1) RU2015114179A (fr)
WO (1) WO2014040653A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106574462B (zh) * 2014-05-15 2019-04-12 叶夫根尼·维亚切斯拉沃维奇·科姆拉科夫 多部件式建筑构件和用于组装该多部件式建筑构件的工艺
DE102015100438B3 (de) * 2015-01-13 2016-03-24 Technische Universität Dresden Herstellung von Fertigteilen aus Textilbeton
DE102016211176B4 (de) * 2016-06-22 2019-12-24 Lenz Tankred Verfahren und Verwendung einer Vorrichtung zur Durchführung des Verfahrens zur Herstellung von Betonbauteilen
DK3418465T3 (da) 2017-06-23 2022-05-30 Solidian Gmbh Fremgangsmåde til fremstilling af en tekstilarmeret byggematerialekomponent samt anvendelse af en spændeindretning dertil
KR101980324B1 (ko) * 2017-11-13 2019-05-20 공주대학교 산학협력단 섬유 강화 플라스틱 및 그 제조 방법
IT201800005076A1 (it) * 2018-05-04 2019-11-04 Sistema di precompressione di una struttura
JP6602928B1 (ja) * 2018-05-23 2019-11-06 株式会社スカイ・アーク コンクリート構造物の切除方法
US11186991B2 (en) * 2018-10-31 2021-11-30 Shenzhen University Early warning device and ductility control method for prestressed FRP reinforced structure
CN111189768B (zh) * 2018-11-14 2023-03-10 青岛理工大学 一种腐蚀驱动智能纤维及其制备方法和应用
US12031315B2 (en) 2019-09-06 2024-07-09 Cpc Ag Concrete ceiling, concrete ceiling elements and method for producing a concrete ceiling and a concrete ceiling element
EP3845354B1 (fr) * 2019-12-10 2024-08-28 Wobben Properties GmbH Procédé de fabrication de segments pour une tour, segment précontraint, anneau de tour, tour et éolienne
BE1028361B1 (nl) * 2020-05-29 2022-01-11 Ecosourcen Werkwijze voor het produceren van een bouwelement en een trap en een bouwelement en een trap die volgens deze werkwijze geproduceerd zijn
CN111691679B (zh) * 2020-06-24 2021-11-12 北京工业大学 基于数字孪生的预应力钢结构智能张拉方法
KR102226759B1 (ko) * 2020-08-04 2021-03-12 한국건설기술연구원 매립 스트랜드에 긴장력을 도입한 프리캐스트 프리스트레스트 콘크리트 패널의 제작 방법
CN112476739B (zh) * 2020-12-03 2024-09-27 洛阳中冶重工集团有限公司 一种蒸压加气混凝土制品生产用夹坯装置
HUE072957T2 (hu) 2022-10-04 2025-12-28 Holcim Technology Ltd Eljárás betonlap elõállítására elõfeszített betonból
EP4357092A1 (fr) 2022-10-17 2024-04-24 Holcim Technology Ltd Procédé et dispositif pour la fabrication d'une dalle en béton précontraint
CN117774395A (zh) * 2023-12-05 2024-03-29 福建理工大学 一种具有纤维预应力的复合材料液体成型装置
WO2025162590A1 (fr) 2024-02-02 2025-08-07 Cpc Ag Raccord en forme de pignon, pièce de jonction raccordable en forme de pignon et production associée, procédé d'assemblage de pièces de jonction, utilisation d'un raccord en forme de pignon pour assembler des pièces de jonction, et composant assemblé en plusieurs parties

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070175583A1 (en) * 2006-01-31 2007-08-02 Mosallam Ayman S Technique for prestressing composite members and related apparatuses
DE102008011517A1 (de) * 2008-03-02 2009-09-03 Schottdorf, Bernd, Dr. Verfahren, Vorrichtung und Stützstruktur sowie deren Verwendung zur Herstellung eines Faserverbundteils

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036356A (en) * 1957-06-27 1962-05-29 Ceco Steel Products Corp Method of producing prestressed concrete slabs
US2971237A (en) * 1959-01-06 1961-02-14 Graham Phillip Flexible building panel form
US3882651A (en) * 1972-06-19 1975-05-13 Gilchrist Timothy M Floor supporting framework
US4205926A (en) * 1977-08-15 1980-06-03 Carlson Drexel T Sucker rod and coupling therefor
DE2759161A1 (de) * 1977-12-31 1979-07-12 Strabag Bau Ag Vorgespannter zugstab aus beton
EP0343316A1 (fr) * 1979-08-13 1989-11-29 RESTRA-Patentverwertung GmbH Système pour l'ancrage d'extrémité d'au moins une barre de tension en un matériau composite fibreux dans des constructions en béton précontraint
AT373015B (de) * 1980-05-24 1983-12-12 Strabag Bau Ag Verankerung fuer ein spanndrahtbuendel
JPS60203761A (ja) * 1984-03-28 1985-10-15 財団法人鉄道総合技術研究所 プレストレストコンクリ−ト用緊張材
AT390027B (de) * 1984-05-28 1990-03-12 Katzenberger Helmut Verfahren zur herstellung von vorgespannten betonfertigteilen
FR2582335B1 (fr) * 1985-05-24 1987-08-14 Gtm Ets Sa Dispositif pour l'ancrage d'une extremite d'au moins un cable ou barre sous tension, notamment pour ouvrage en beton precontraint.
JPS646442A (en) * 1987-06-26 1989-01-11 Shimizu Construction Co Ltd Prestressed concrete member using lattice like reinforcing bar and its production
DE3870993D1 (de) * 1987-06-26 1992-06-17 Shimizu Construction Co Ltd Vorgespanntes betonelement mit gitterverstaerkung, verfahren und apparat fuer seine herstellung.
JP2593311B2 (ja) * 1987-06-26 1997-03-26 清水建設株式会社 二方向プレストレス導入コンクリート部材の製造装置
JPH0715937Y2 (ja) 1988-01-28 1995-04-12 日本コンクリート工業株式会社 Ｆｒｐ筋の緊張定着装置
US5072558A (en) * 1988-04-21 1991-12-17 Varitech Industries, Inc. Post-tension anchor system
JPH0272905A (ja) * 1988-09-07 1990-03-13 Shimizu Corp プレストレストコンクリート部材の製造方法およびプレストレストコンクリート部材用の格子状補強筋
US4932178A (en) * 1989-05-05 1990-06-12 Mozingo Ralph R Compound timber-metal stressed decks
EP0532140A1 (fr) * 1991-09-13 1993-03-17 Board of Regents of the University of Nebraska Panneaux-sandwich préfabriqués en béton
CH687399A5 (de) * 1992-04-06 1996-11-29 Eidgenoessische Materialpruefung Verfahren und Vorrichtung zur Schubverstaerkung an einem Bauwerkteil.
JPH0715851Y2 (ja) * 1992-11-02 1995-04-12 株式会社富士ピー・エス プレストレス用非鉄線材の一括曲げ上げ具
DE4318904A1 (de) * 1993-06-07 1995-01-05 Horst Dr Ing Kinkel Verfahren zur Bewehrung eines Betonbauwerks, und Bewehrungselemente hierfür
JP2601596Y2 (ja) * 1993-10-19 1999-11-22 宇部日東化成株式会社 プレストレストコンクリート用緊張材
US5613334A (en) * 1994-12-15 1997-03-25 Cornell Research Foundation, Inc. Laminated composite reinforcing bar and method of manufacture
US6067757A (en) * 1999-02-17 2000-05-30 Olson; Timothy Tilt-up concrete panel and forming system therefore
FR2798409B1 (fr) * 1999-09-15 2002-01-04 Freyssinet Int Stup Systeme de connection d'un cable a une structure d'ouvrage de construction
JP2001262708A (ja) * 2000-03-15 2001-09-26 Oriental Construction Co Ltd Ｆｒｐ積層パネルを用いたｆｒｐコンクリート合成構造
US6711866B2 (en) 2000-10-06 2004-03-30 Brian M. Blount Thin prestressed concrete panel and apparatus for making the same
US6811861B2 (en) * 2000-11-28 2004-11-02 Wisconsin Alumni Research Foundation Structural reinforcement using composite strips
WO2002056629A1 (fr) * 2001-01-12 2002-07-18 Evolium S.A.S. Procede de gestion de ressources de traitement dans un systeme de radiocommunications mobiles
US7124547B2 (en) * 2002-08-26 2006-10-24 Bravinski Leonid G 3-D construction modules
US6761002B1 (en) * 2002-12-03 2004-07-13 Felix L. Sorkin Connector assembly for intermediate post-tension anchorage system
US20060218870A1 (en) * 2005-04-01 2006-10-05 Messenger Harold G Prestressed concrete building panel and method of fabricating the same
CN100410452C (zh) * 2006-06-23 2008-08-13 天津市永定河管理处 纤维筋混凝土水工闸门及制作方法
US8036356B1 (en) * 2006-08-08 2011-10-11 Avaya Inc. System and method of identifying geographic location for the source of a call
CN101463638A (zh) * 2007-12-23 2009-06-24 柳州欧维姆机械股份有限公司 碳纤维板锚具
CN101285333B (zh) * 2008-06-06 2010-08-04 湖南科技大学 组合式变波纹纤维片材专用锚具及其预应力张拉方法
KR101084992B1 (ko) * 2009-03-25 2011-11-18 주식회사 젬콘 프리스트레스트거더제작대와 이의 설치방법 및 이를 이용한거더제작방법
CN201486017U (zh) * 2009-06-16 2010-05-26 张军 改进的建材基体
US8511013B2 (en) * 2009-09-03 2013-08-20 General Electric Company Wind turbine tower and system and method for fabricating the same
US8312683B2 (en) * 2009-09-15 2012-11-20 Tadros Maher K Method for constructing precast sandwich panels
CN101851985B (zh) * 2010-05-27 2012-08-08 卓清 铰式锚及高强度纤维复合材料片材的预应力张拉方法
RU2455436C1 (ru) 2010-12-15 2012-07-10 Христофор Авдеевич Джантимиров Арматурный элемент для предварительно напряженных бетонных конструкций
CN202000558U (zh) * 2011-03-24 2011-10-05 广西工学院 预应力纤维树脂复合筋
CN102242505A (zh) * 2011-05-23 2011-11-16 天津市银龙预应力钢材集团有限公司 一种防腐预应力钢绞线及其制造方法
US8555584B2 (en) * 2011-09-28 2013-10-15 Romeo Ilarian Ciuperca Precast concrete structures, precast tilt-up concrete structures and methods of making same
US8613172B2 (en) * 2012-01-06 2013-12-24 Clark—Pacific Corporation Composite panel including pre-stressed concrete with support frame, and method for making same
WO2014182178A1 (fr) * 2013-05-06 2014-11-13 University Of Canterbury Barres ou panneaux précontraint(e)s

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070175583A1 (en) * 2006-01-31 2007-08-02 Mosallam Ayman S Technique for prestressing composite members and related apparatuses
DE102008011517A1 (de) * 2008-03-02 2009-09-03 Schottdorf, Bernd, Dr. Verfahren, Vorrichtung und Stützstruktur sowie deren Verwendung zur Herstellung eines Faserverbundteils

Also Published As

Publication number Publication date
FI2912239T3 (fi) 2023-06-02
JP2015534613A (ja) 2015-12-03
AU2012389581A1 (en) 2015-03-19
PL2912239T3 (pl) 2023-08-14
HUE071228T2 (hu) 2025-08-28
CA2884137C (fr) 2019-04-30
US11365544B2 (en) 2022-06-21
DK4206413T3 (da) 2025-05-05
CA2884137A1 (fr) 2014-03-20
KR20150082216A (ko) 2015-07-15
US9938721B2 (en) 2018-04-10
RU2015114179A (ru) 2016-11-10
HUE062126T2 (hu) 2023-09-28
PT4206413T (pt) 2025-04-09
PT2912239T (pt) 2023-05-09
WO2014040653A1 (fr) 2014-03-20
FI4206413T3 (fi) 2025-03-03
DK2912239T3 (da) 2023-06-19
AU2012389581B2 (en) 2017-09-28
CN104797764A (zh) 2015-07-22
PL4206413T3 (pl) 2025-06-09
EP4206413B1 (fr) 2025-01-29
ES2942845T3 (es) 2023-06-07
KR102073598B1 (ko) 2020-02-05
US20180179757A1 (en) 2018-06-28
ES3025101T3 (en) 2025-06-06
EP4206413A1 (fr) 2023-07-05
AU2012389581A8 (en) 2015-04-02
JP6198832B2 (ja) 2017-09-20
US20150267408A1 (en) 2015-09-24
EP2912239A1 (fr) 2015-09-02
CN109281439A (zh) 2019-01-29

Similar Documents

Publication Publication Date Title
EP4206413B1 (fr) Éléments de construction en béton précontraint et procédé de fabrication d'éléments de construction en béton précontraint
EP3310976B1 (fr) Structure en treillis et procédé de fabrication de cette structure
DE102016100455B4 (de) Textile Bewehrung und deren Herstellung
EP2839089B1 (fr) Élément de construction et procédé de fabrication d'un élément de construction
EP1628790A1 (fr) Filet de protection, en particulier pour un dispositif de protection contre la chute de pierres ou pour un dispositif de protection de talus
EP3266951B1 (fr) Élément constitutif composite comprenant des parties plates en béton préfabriqué
EP3258029B1 (fr) Élément de treillis en textile pour béton armé et procédé de fabrication de l'élément de treillis pour béton armé
WO2003064789A1 (fr) Dispositif de consolidation
EP2236686A1 (fr) Elément d'armature pour la reprise des efforts dans les dalles en béton aux alentours d'éléments d'appui
DE2613579C2 (de) Verfahren zum Herstellen eines ebenen oder räumlichen Bewehrungsgebildes aus parallel verlaufenden Längsbewehrungsstäben und quer dazu angeordneten Querbewehrungsstäben
DE102020126584B3 (de) Maschine und Verfahren zur Herstellung einachsiger Bewehrungsstahlstabmatten
DE69123517T2 (de) Verfahren zur Herstellung einer Stahlblechbetondecke
DE1812865C3 (de) Bewehrung fur flächige Betonbauteile
EP0628675B1 (fr) Méthode pour le renforcement d'une structure en béton et éléments de renfort pour la mise en oeuvre du procédé
DE4135581A1 (de) Bauplatte und verfahren zu ihrer herstellung
EP3705657B1 (fr) Structure de renfort textile pour un composant, procédé de fabrication pour une structure de renfort, composant et pièce semi-finie
EP0361227A2 (fr) Traverse de chemin de fer en béton précontraint
DE19719049C1 (de) Verfahren zur Herstellung textilbewehrter Bauelemente bzw. Verstärkungsschichten für Bauelemente
DE3543369A1 (de) Verfahren zum bewehren von vorgefertigten stahlbetonbauteilen sowie vorrichtung zur durchfuehrung des verfahrens
DE102024114142A1 (de) Maschine und Verfahren zur Herstellung einachsiger Bewehrungsstahlstabmatten, sowie einachsige Bewehrungsstabmatte
EP2096220B1 (fr) Elément de plaques creuses préconstraintes
AT399006B (de) Verfahren zur herstellung von teilen für stahlbetonbewehrungen
DE102021115774A1 (de) Vorrichtung und Verfahren zur Herstellung eines flächigen Bauteils mit vorgespannter textiler Bewehrung
DE102016118301B4 (de) Holz-Beton-Verbundkörper und Herstellverfahren
EP4030013A1 (fr) Élément d'armature destiné à l'augmentation de la résistance à la force transversale

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150401

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190320

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220516

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTC Intention to grant announced (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: KURATH-GROLLMANN, JOSEF PETER

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20221006

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012017141

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1554078

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230415

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 2912239

Country of ref document: PT

Date of ref document: 20230509

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20230503

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: FI

Ref legal event code: FGE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2942845

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20230607

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20230613

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

REG Reference to a national code

Ref country code: NO

Ref legal event code: T2

Effective date: 20230315

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20230400789

Country of ref document: GR

Effective date: 20230710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

REG Reference to a national code

Ref country code: HU

Ref legal event code: AG4A

Ref document number: E062126

Country of ref document: HU

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012017141

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

26N No opposition filed

Effective date: 20231218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230917

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230917

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20240912

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20240916

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NO

Payment date: 20240910

Year of fee payment: 13

Ref country code: SE

Payment date: 20240828

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230315

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240823

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120917

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20250826

Year of fee payment: 14

REG Reference to a national code

Ref country code: CH

Ref legal event code: U11

Free format text: ST27 STATUS EVENT CODE: U-0-0-U10-U11 (AS PROVIDED BY THE NATIONAL OFFICE)

Effective date: 20251001

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20250911

Year of fee payment: 14

Ref country code: DE

Payment date: 20250819

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 20250829

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20250827

Year of fee payment: 14

Ref country code: PL

Payment date: 20250826

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: HU

Payment date: 20250915

Year of fee payment: 14

Ref country code: GB

Payment date: 20250821

Year of fee payment: 14

Ref country code: BE

Payment date: 20250825

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20250827

Year of fee payment: 14

Ref country code: FR

Payment date: 20250821

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20250905

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: RO

Payment date: 20250905

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20251001

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20251017

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20250917

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20260317