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EP2775063B1 - Agencement de liaison destiné à la formation de produits finis en béton à double paroi - Google Patents

Agencement de liaison destiné à la formation de produits finis en béton à double paroi Download PDF

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Publication number
EP2775063B1
EP2775063B1 EP13157773.6A EP13157773A EP2775063B1 EP 2775063 B1 EP2775063 B1 EP 2775063B1 EP 13157773 A EP13157773 A EP 13157773A EP 2775063 B1 EP2775063 B1 EP 2775063B1
Authority
EP
European Patent Office
Prior art keywords
anchor parts
concrete
concrete body
arrangement
formwork
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.)
Not-in-force
Application number
EP13157773.6A
Other languages
German (de)
English (en)
Other versions
EP2775063A1 (fr
Inventor
Dieter Rausch
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.)
PRECONTECH PRECAST CONCRETE TECHNOLOGY EK
PRECONTECH PRECAST CONCRETE TECHNOLOGY E K
Original Assignee
PRECONTECH PRECAST CONCRETE TECHNOLOGY EK
PRECONTECH PRECAST CONCRETE TECHNOLOGY E K
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 PRECONTECH PRECAST CONCRETE TECHNOLOGY EK, PRECONTECH PRECAST CONCRETE TECHNOLOGY E K filed Critical PRECONTECH PRECAST CONCRETE TECHNOLOGY EK
Priority to EP13157773.6A priority Critical patent/EP2775063B1/fr
Priority to BR112015021490A priority patent/BR112015021490A2/pt
Priority to PCT/EP2013/003222 priority patent/WO2014135182A1/fr
Publication of EP2775063A1 publication Critical patent/EP2775063A1/fr
Application granted granted Critical
Publication of EP2775063B1 publication Critical patent/EP2775063B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/08—Moulds provided with means for tilting or inverting
    • B28B7/085—Moulds provided with means for tilting or inverting for making double wall panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/028—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members for double - wall articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures
    • 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
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18—Spacers of metal or substantially of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • E04G21/145—Means in or on the elements for connecting same to handling apparatus specific for hollow plates
    • 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 present invention relates to a connection arrangement for forming double-shell precast concrete parts, in particular concrete wall elements, such as concrete zero-wall elements.
  • the invention relates to a corresponding precast concrete part and a method for producing such precast concrete parts.
  • preconfigured and custom-made precast concrete elements in particular of reinforced concrete wall elements, is already widespread for the efficient and rapid erection of structures.
  • so-called double-wall elements are used which have a multi-shell, in particular two-shell construction.
  • two concrete shells are connected to one another via lattice girders to form a cavity located between the shells.
  • the lattice girder is in this case embedded in both concrete shells and extends over the space provided between the shells cavity, which is filled at the construction site with ready-mixed or ready-mixed concrete.
  • the in-situ concrete must not only be carefully installed, but also professionally compacted after the cavity filling in order to avoid cavities in the core concrete in particular.
  • Comparatively narrow cavities between the concrete shells prove to be critical here, since the supplied concrete may not be introduced evenly under certain circumstances. Especially with comparatively high double-walled elements, this can lead to segregation of the fresh concrete and thus to defects in the core concrete.
  • the lattice girders extending across the cavity prove to be disadvantageous for this purpose.
  • a double-shelled and hollow double wall is eg in the DE 198 05 571 C2 described. Furthermore, from the DE 10 2007 014 366 A1 a reinforcement device for prefabricated parts known, which is realized by tensile and / or pressure elements, which is to press in not yet cured casting.
  • the DE 1 759 820 A1 describes a set of components for producing a second shell of a wall formwork.
  • the FR 2 836 272 A1 describes a provided with an insulation concrete wall.
  • the DD 211 140 A1 discloses a fastener for reinforced concrete cells consisting of prefabricated reinforced concrete slabs and stiffening trusses and the DE 297 13 029 U1 discloses a transport and laying anchor with welded cross bracing for hollow and Filigrantext.
  • Another double wall with two spaced concrete slabs is from the DE 199 46 320 A1 known.
  • a distance of the two plates is in this case effected by a plurality of zigzag-like stiffeners, which are fastened to the reinforcements of the respective plates.
  • a steel tube is further arranged as a support web for the double wall, wherein each end of the steel tube is provided with a reinforcement.
  • tilting table production In terms of production technology, comparatively large-sized switching tables and turning devices, such as suction cup turning bars, are required for this purpose.
  • Alternative production methods for the described tilting table production include, for example, circulating shingles in a production environment, which are cast in several processing steps with concrete.
  • the present invention is based on the object to provide an improved connection arrangement for forming a clam shell precast concrete, in particular a concrete zero wall, which provides a good connection between two concrete shells or concrete body and which allows efficient, rapid and cost-saving mass production of double or multi-shell precast concrete parts.
  • connection arrangement Furthermore, by means of the connection arrangement, the handling of intermediate products of the precast concrete part as well as of the finished precast concrete part itself, for instance for transport purposes or for on-site installation or construction, shall be simplified.
  • connection arrangement according to claim 1 with a precast concrete part according to claim 9 and with a method for producing such precast concrete parts according to claim 12.
  • connection arrangement is designed to form a two-shell precast concrete part, in particular a zero wall or a double wall with spaced concrete shells.
  • the connection arrangement in this case has at least two anchor parts, which are arranged at a distance from one another on a carrier.
  • the anchor parts each have two end portions extending in different directions away from the carrier.
  • first and second end portions of the anchor portions are spaced apart from the carrier and extend from different, in particular opposite, outer sides of the carrier in a direction away from the carrier.
  • the at least two anchor parts are in this case arranged on the carrier such that first end sections of the at least two anchor parts lie in a first imaginary plane or span such a first plane.
  • the first imaginary plane extends essentially parallel to a second imaginary plane. In this come opposite, second end portions of the at least two anchor parts to lie.
  • connection arrangement can be positioned directly on a support level or on a Wennisch a formwork arrangement for forming a first concrete body.
  • first imaginary plane can coincide with the plane of the contact area or with the plane of the shift table.
  • anchor parts when concreting a first concrete body enclosed only in some areas of fresh concrete and so far only partially anchored in the first concrete shell formed by the first concrete body. Opposite second end portions of the anchor parts thus protrude from the overhead surface or connecting surface of the first concrete body.
  • the first provided with the at least two anchor parts concrete shell after curing of the concrete turned by 180 ° be placed on another, filled with fresh concrete formwork arrangement, wherein the second end portions of the anchor parts penetrate into the fresh concrete or dip and on a Supporting level of the second formwork arrangement or on a corresponding formwork table.
  • connection arrangement can function not only for connecting two concrete body, but also for maintaining a predetermined distance of the concrete body to each other.
  • the connection arrangement thus has a dual function. It is designed to connect two concrete body, such as two concrete shells together, as well as to hold the two concrete body or concrete shells, in particular during the curing of one of the two concrete body in a predetermined defined distance.
  • connection assembly can also act as a spacer for the production of double-shell precast concrete, in particular Betonullêtn or concrete double walls, in the latter, the two concrete shells to form a cavity at a predetermined distance, possibly arranged to form a cavity to each other.
  • the at least two anchor parts can be formed of approximately the same length and be arranged substantially parallel to one another on the carrier. In this case, it is conceivable in particular that the anchor parts extend at an angle of approximately 90 ° to the longitudinal extent of the carrier.
  • the carrier is in this case arranged in particular between opposite end portions of the anchor parts. It may be located approximately midway between the opposite end portions of the anchor parts.
  • the carrier is located at least 1/5, 1/4, or 1/3 of the longitudinal extent of the anchor portions away from the first and / or second end portions of the anchor portions.
  • the anchor parts in particular their mutually opposite end portions adjoin only selectively to the first and / or the second imaginary plane. That is, the cross-sectional area of the end portions of the anchor parts by means of which these with the contact plane of a Getting shuttering in investment position is relatively small. It is less than 1 cm 2 , less than 5 mm 2 , less than 3 mm 2 or even less than 2 mm 2 .
  • the at least two anchor parts of the connection arrangement may, but need not necessarily, be aligned parallel to one another.
  • the anchor parts are aligned differently and have different lengths.
  • a fastening element extending between the two imaginary planes is arranged on the carrier. In the region of at least one end section projecting toward the first or the second plane, this has a connection structure for forming a releasable connection to a hoist.
  • the fastening element can be embedded so far comparable to the anchor parts in the first and in the second concrete body.
  • Its end portion projecting toward the first or second level may either lie directly in the plane or be slightly spaced from the plane. However, the end portion of the fastener does not protrude through that level, but comes to rest within the later concrete body and thus set back relative to the end portions of the anchor parts.
  • the fastener is connected via the carrier with the anchor parts and also itself and directly anchored in the concrete body, the fastener can be used to handle the first concrete body and the handling of the entire precast concrete part.
  • the first concrete body cast in a first formwork assembly can be replaced by e.g. standardized connection lifted with a hoist and thus lifted out of the first formwork arrangement.
  • the first concrete body provided with the at least one connection arrangement can also be variably aligned, in particular set up and turned over.
  • the fastener can also act after completion of the precast concrete as a means of transport for the precast concrete part.
  • the entire precast concrete can be raised with construction site provided hoists, positioned, aligned and lowered on site in the intended orientation. Furthermore, the finished precast concrete part can be fixed and stabilized by means of supports or struts, for example, for transport purposes or even in an end position provided by the customer.
  • the fastening element furthermore has, in the region of at least one end section projecting toward the first or second plane, a connecting structure in the form of an internal thread.
  • the fastening element may be formed substantially identically or symmetrically at its opposite end portions and each having a connection structure at both opposite end portions.
  • the fastener also has a sleeve provided with an internal thread.
  • a sleeve provided with an internal thread.
  • a fastening bolt provided with a bolt of a hoist are screwed. In this way, a particularly simple and safe and stable connection can be provided with a hoist.
  • the anchor parts at least partially have a curved, corrugated, coiled, jagged or curved contour, by means of which the anchor parts are positively anchored in a first concrete body.
  • Such an uneven design of the anchor parts serves to fix the anchor parts in the hardened concrete body.
  • the anchor parts Due to a curved, corrugated, coiled, serrated or otherwise arbitrary curved outer contour, the anchor parts are fixed even under the action of a significant tensile load firmly and directly in the concrete body without a separate attachment of the anchor parts with a reinforcement of the concrete body is required.
  • the anchor parts are made of a corrosion-resistant material.
  • the anchor parts are also in the connection direction, i. formed pressure stable along the surface normal of the first or second imaginary plane, in particular to bear a load of a first concrete body when it is placed on a fresh concrete provided with formwork arrangement.
  • the anchor parts are preferably designed as a stainless steel anchor, which has sufficient pressure stability and corrosion resistance.
  • the corrosion-resistant embodiment is of importance insofar as the end sections of the anchor parts project up to the outer surface of the precast concrete part. Since the connection arrangement only selectively is provided with comparatively filigree in cross section designed anchor parts, the material and cost of the use of corrosion-resistant material is limited.
  • connection arrangement by means of the at least two anchor parts can be erected or positioned in a tilt-proof manner on a ridge plane coinciding with the first or the second plane.
  • the anchor parts are designed and arranged on the support such that they are in a predetermined orientation, in which the anchor parts, e.g. extend substantially perpendicular to the plateau, can be placed on this stable and tip over.
  • connection arrangement has only two anchor parts, it is advantageous if at least one of the two anchor parts has two free ends or end sections spaced apart from one another in the contact plane, so that the connection arrangement can be positioned tilt-proof on the contact plane according to the principle of a tripod.
  • connection arrangement has more than two anchor parts, individual anchor parts can also be designed only as anchor rods.
  • the carrier has an at least partially curved or kinked outer contour, so that the at least three anchor parts not only in one, but in both, the first or second imaginary plane spanning directions (x, y) are spaced from each other.
  • the carrier in the direction of the distance of the at least two anchor parts at least partially a curved, corrugated, coiled, jagged or curved contour.
  • the support itself can be embedded in the first or in a second concrete body in a form-fitting manner, at least in some areas, and accordingly anchored in a form-fitting manner in the concrete.
  • first and / or second end portions of the e.g. are substantially perpendicular to the longitudinal axis of the carrier extending first and second anchor parts in both directions (x, y) parallel to the first or second plane spaced from each other.
  • first and second anchor parts e.g. are substantially perpendicular to the longitudinal axis of the carrier extending first and second anchor parts in both directions (x, y) parallel to the first or second plane spaced from each other.
  • the fastener may have at its end portions a closure element, e.g. in the form of a cap or a sealing stopper, which on the one hand prevents the penetration of fresh concrete into the fastening element formed as a sleeve and which on the other hand, for example by a flange-like and radially outward, from the free end of the fastener protruding disc-like configuration can ensure that the Fastening element comes to lie in a recess or recess of the later outer side of the precast concrete part.
  • a closure element e.g. in the form of a cap or a sealing stopper
  • a recess or recess with a defined diameter and with a essentially flat bottom are formed, which is particularly well suited for receiving tensile or compressive forces of the hoist.
  • the depression or recess formed by the plug of the fastener in the outside of the precast concrete part can be filled after professional installation or final assembly of precast concrete, about to be filled.
  • the hoisting device can be connected to the fastening element in a contact-free or non-contact configuration with respect to the outer surface. Damage to the outer surface or formwork side of the precast concrete by the hoist can thus be effectively avoided.
  • the closure plug can also be made of a thermoplastic material. Furthermore, it is advantageously provided that an outer side of the sealing plug facing away from the fastening element comes to rest approximately flush with the first and / or the second end sections of the at least two anchor parts of the connecting arrangement. In that regard, the sealing plug can provide additional support against a riot plane and a tilt-proof positioning of the connection assembly to e.g. support a formwork table.
  • the sealing plug made of thermoplastic material, the closure plug and with him the entire connection assembly, for example, by area melting of the plastic adhesive or non-positively to connect with the plateau.
  • the sealing plug can also be used for fixing the connection arrangement in the xy plane with respect to a formwork arrangement.
  • the anchor parts on a substantially elongated or at least two legs comprehensive U-shaped outer contour provision is made in particular for one, for instance the first end section of the anchor part, to have two free ends spaced apart from one another, which correspond to the leg ends of the U-shaped configuration.
  • the opposite end portion, such as the second end portion may be e.g. have a bow-shaped and accordingly rounded configuration.
  • the U-shaped configuration is advantageous insofar as that the corresponding anchor part is provided with two legs and thus with two free end portions, by means of which the connection arrangement can be set up tilt-safe even at only two anchor parts on the support level.
  • the U-shaped anchor part can be slipped over the reinforcement of the first concrete body collision-free, with the free leg ends facing down towards the first plane.
  • an arrangement of the anchor parts is conceivable that any approximately parallel to the supporting plane extending reinforcing elements, such as in the form of steel rods, come to rest between the legs of the anchor parts.
  • the approximately bow-shaped second end portion of the U-shaped anchor member can protrude like a tab from the first concrete body.
  • that bracket section can also basically be used for lifting and positioning as well as aligning the first concrete body.
  • a U-shaped anchor member on the support is further provided that, for example, down to the first level extending free ends of the two legs have a corrugated or coiled outer contour, while the opposite second end portion of the U-shaped anchor member a merely Having in a plane extending U-shaped bracket section.
  • the bent, approximately U-shaped and wegerSCHnde from one side of the support bracket portion may form a positive connection with the second concrete body already due to its shape, while the free end portions of the leg ends of the U-shaped anchor member preferably corrugated, coiled or serrated or even bent only partially, so that the anchor parts can form a positive connection with the first concrete body here as well.
  • anchor parts ring-like, Z-shaped or M-shaped or form a triangle.
  • the anchor part can have a rod-shaped, either rectilinear or also curved, approximately U-shaped contour, the anchor part itself or the rod forming the anchor part being e.g. is designed as a round rod or as a comparatively thick stainless steel wire.
  • the U-shaped configuration of the anchor part of a hairpin similar.
  • connection arrangement at least one of the anchor parts is connected to the carrier on the inside of a curved, corrugated, coiled, jagged or curved section of the carrier.
  • the carrier may in particular have individual kinks or bent or bent regions.
  • the arrangement on an inner side of the curved, kinked or otherwise not rectilinear section on the carrier is advantageous in that the anchor part, such as a leg of the U-shaped anchor member is as narrow as possible enclosed or enclosed by the curved or curved contour of the carrier.
  • anchor part is welded to the carrier.
  • a precast concrete element with a first concrete body and with at least one connection arrangement described above is further provided.
  • the at least two anchor parts of the connection arrangement are in this case partially anchored in the first concrete body. It is particularly provided here that e.g. the first end portions of the at least two anchor parts are anchored in the concrete body, while the second, opposite provided end portions of the anchor parts protrude from a connecting surface of the first concrete body. In that regard, the anchor parts protrude in areas out of the concrete body to form a fluid connection with a second concrete body.
  • the precast concrete element may have at least one concrete body made of conventional concrete or lightweight concrete.
  • Lightweight concrete typically has a lower dry bulk density of at most 2000 kg / m 3 .
  • the lightweight concrete body can be designed with grain porosities to form a so-called closed structure.
  • the lightweight concrete may be mixed with expanded clay or the like pore-forming, relatively dense aggregates to form a hauftechniksporigen structure.
  • connection arrangement on a riot plane which coincides with the formwork table provided for the first concrete body formwork arrangement, erected tilting and already not only positioned by their non-tilt installation in the intended manner, but also aligned are.
  • the anchor parts may in this case extend substantially perpendicular to the contact surface. It is hereby provided in particular that all embedded in the first concrete body anchor parts of all connection assemblies are on the uprising level and supported on this.
  • the armature parts opposite thereto, namely with their second ends in a second plane extending substantially parallel to the supporting plane the armature parts can act as spacers, which in particular uniformly or regularly distributed over the surface of the concrete body arranged a comparatively uniform support of the first Concrete body can provide against a second support level, in particular when the first concrete body is positioned in a rotated by 180 ° configuration with the downwardly projecting second end portions of the anchor parts on a provided with fresh concrete second formwork arrangement.
  • the precast concrete part further comprises a second concrete body, in which the anchoring parts projecting from the connecting surface of the first concrete body are anchored at least in some areas.
  • the connecting arrangements designed as a zero wall two-shell precast concrete part can be made.
  • a double wall or cavity wall may be provided that only the second end portion of the anchor parts corresponding to the thickness of the second concrete body penetrate into it, wherein the first and second concrete body remain at a predetermined distance from each other.
  • it can further be provided to provide an insulating layer between the first and the second concrete body.
  • the insulating layer can be placed on the fresh concrete located in the second formwork arrangement, for example, before the rotated by 180 ° first Concrete body is lowered with the second ends of the anchor parts projecting therefrom ahead of the second formwork arrangement.
  • the connection arrangement is equally suitable for the production of zero walls, double walls as well as for the realization of bivalve precast concrete with integrated insulation layer.
  • the first and second imaginary planes formed by the anchor parts of the connection arrangement coincide with opposite shuttering outer sides of the precast concrete part.
  • the construction height of the anchor parts perpendicular to the first or second imaginary plane corresponds to the extent of the wall thickness of the clam shell, the first and the second concrete body having precast concrete part.
  • a method for producing a precast concrete part which can be carried out using a connection arrangement described above.
  • the method begins with the positioning of at least one connection arrangement on a contact plane of a first formwork arrangement.
  • the at least two anchor parts of the connection arrangement are based on their first end sections at the contact surface.
  • the connection arrangement with the first end portions of its at least two or more anchor parts is on the contact surface of the formwork assembly, which typically coincides with the plane of a formwork table in a mass production process.
  • a reinforcement is also typically provided for the formation of a first concrete body.
  • the first formwork arrangement is at least partially filled with fresh concrete to form a first concrete body.
  • the filling amount is in this case dimensioned such that the anchor parts are at least partially anchored in the first concrete body, but partially, typically with their opposite second end portions, protrude from a surface of the fresh concrete which coincides with a later joining surface of the first concrete body.
  • the at least partially cured first concrete body is turned.
  • the turned concrete body which is typically rotated by 180 °, is arranged above or on a second formwork arrangement provided with fresh concrete such that the second end portions of the anchor portions projecting from the first concrete body are supported on a contact surface of the second formwork arrangement.
  • the second formwork arrangement provided with fresh concrete serves in this case for the formation of the second concrete body, which is permanently and non-detachably connected to the first concrete body by means of the connection arrangement, in particular with the anchor parts provided thereon.
  • connection arrangement in particular with its first and second anchor parts, provides a spacer by means of which the first concrete body can be held at a predetermined distance from the contact plane of the second formwork arrangement.
  • provision is made in particular for a plurality of connection arrangements to be distributed approximately uniformly over the surface of the first, and thus of the second concrete body. In this way, a uniform support and uniform force transmission from the first concrete body into the second formwork arrangement can be provided at least during the curing of the second concrete body.
  • connection arrangement provided with a fastening element is further provided for producing the precast concrete part.
  • the connection arrangement can be similar as the second end portions of the anchor parts protrude from the surface or from the connecting surface of the first concrete body after casting and curing of the first concrete body and are thus raised by means of a cooperating with the fastener hoist from the first formwork assembly.
  • the first concrete body can not only be raised, but also turned and / or positioned and lowered above or on the second formwork arrangement already provided with fresh concrete such that the second ends of the anchor parts immerse in the fresh concrete of the second formwork arrangement and be supported on the support level of the second formwork arrangement.
  • the fastening element has at its two opposite end sections a connecting structure, for example in the form of a screw thread.
  • a connecting structure for example in the form of a screw thread.
  • rotated about 90 ° to the side orientation of the hoist can then be implemented and connected to about a first end portion of the fastener, so that the already cast first concrete body turned by another 90 °, thus held from above, on the second formwork arrangement can be lowered.
  • connection arrangement according to the invention in particular zero-wall precast concrete parts can be made in high quality and smooth on both sides smooth surface, with a surface processing, such as the filling of any recesses or recesses in the region of the fastener is no longer required.
  • a surface processing such as the filling of any recesses or recesses in the region of the fastener is no longer required.
  • the production capacity of existing production facilities for precast concrete parts be noticeably improved and increased, since the previously required surface finishing processes can be omitted.
  • connection arrangements which are typically regularly distributed over the surface of the precast concrete part and accordingly to be provided selectively, can completely replace previous lattice girders provided for connecting concrete shells for double walls. Since the connection arrangements are only occasionally anchored and spaced over the surface of the precast concrete part each spaced in the precast concrete elements, the filling of hollow double walls with in-situ concrete can be simplified and improved quality.
  • connection arrangement 10 in a first embodiment is shown in a side view in the xz plane, while FIG. 2 represents the connection assembly 10 from above in the xy plane.
  • the connecting arrangement 10 has an approximately horizontally extending support 18, on which at least two, in the present embodiment, three anchor parts 12, 14, 16 are arranged.
  • the anchor parts 12, 14, 16 are U-shaped. They have upwardly projecting a second end portion 22 which is bow-shaped.
  • all the anchor parts 12, 14, 16 on two legs 12A, 12B which form a first imaginary plane 1 with their free ends. Consequently, all lower, ie first end portions 20 of the three anchor parts 12, 14, 16 lie in a common plane 1.
  • first and two levels 1, 2 coincide with the shuttering outer sides 102, 104 of the finished precast concrete part 100, as for example in Fig. 11 is clear.
  • the anchor parts 12, 14, 16 have an outer contour resembling a hairpin.
  • the first end portions 20 of the anchor parts 12, 14, 16 are formed wavy, in particular with a first, in the FIGS. 6 to 10 shown concrete body 40 to form a positive connection, or a positive anchoring. Since the opposite end portions 20, 22 of the anchor parts 12, 14, 16 in its final installation position in the precast concrete part 100 on its formwork outer sides 102, 104 protrude or adjacent, the anchor parts 12, 14, 16 made of a corrosion-resistant material, in particular made of stainless steel.
  • FIG. 2 also shows that the carrier 18, with which the anchor parts 12, 14, 16 connected, in particular welded, in the xy plane at least partially curved, corrugated, coiled, jagged or curved contour.
  • the carrier 18 itself can undergo a form-fitting anchoring in one of the concrete bodies 40, 60 forming the precast concrete part 100.
  • connection assembly 10 can be achieved, for example, when this is on a support level 42 one in FIG. 5 schematically shown formwork arrangement 38 is turned off.
  • FIG. 2 Furthermore, it is shown that the U-shaped anchor parts 12, 14, 16 are each fastened with one of their two legs 12a, 12b in the region of a bend, or a bent or bent position of the carrier 18.
  • carrier 18 and anchor part 12, 14, 16 In a welded connection of carrier 18 and anchor part 12, 14, 16, a particularly strong and robust connection can be provided in this way.
  • connection arrangement 10 has a plurality of armature parts 12, 14, 16, which are aligned parallel to one another and extend away from the support 18 with opposite end sections 20, 22, the connection arrangement 10 can be seen in FIG FIGS. 5 to 7 be positioned and placed on a formwork riot level 42 shown.
  • the length of the anchor parts 12, 14, 16 in the Z direction ultimately corresponds to the wall thickness of the precast concrete part 100 to be manufactured.
  • FIGS. 3 and 4 differs from the one according to the Figures 1 and 2 in that on the support 18 in addition a trained in the form of a sleeve fastener 24 is arranged.
  • the fastening element 24 is in this case provided with a connecting structure 26, which is formed at least at the opposite first and second end portions 28, 30 of the fastening element 24.
  • the connecting structure 26 is designed as an internal thread, which in the delivery state of the connection arrangement can be provided with a closure element 32 functioning as a sealing stopper.
  • Closing element 32 shown has a plate-like adjacent to a screwed into the fastener 24 thread Flange portion 33, the fastening element 24 facing away from the outside typically in the first and / or in the second imaginary plane 1, 2 comes to rest.
  • the closure member 32 can increase the footprint of the connection assembly 10 on the footprint 42 of the formwork assembly 38. If the closure member 32 is further e.g. is made of a thermoplastic material, it can not only be positioned by heating together with the associated connection assembly 10 at a predetermined position of the support level 42 of the formwork assembly 38 but also fixed accordingly.
  • connection arrangement 10 is positioned on a support level 42, which coincides with the level of a formwork table, such that the first end portions 20 of the anchor parts 12, 14, 16 and the closure element 32 largely stable and stable stand on the plateau 42 of the formwork arrangement 38.
  • a support level 42 which coincides with the level of a formwork table, such that the first end portions 20 of the anchor parts 12, 14, 16 and the closure element 32 largely stable and stable stand on the plateau 42 of the formwork arrangement 38.
  • a plurality of connecting arrangements 10 distributed over the surface of the later wall element are, of course, to be arranged in or on the formwork arrangement 38 in a corresponding manner.
  • the formwork arrangement 38 furthermore has a circumferential side wall 44.
  • FIG. 6 an intermediate step of the manufacturing process is shown after fresh concrete has been introduced into the first formwork arrangement 38 to form a first concrete body 40.
  • first end portions 22 in particular the corrugated trained Leg 12a, 12b of the anchor parts 12, 14, 16 anchored in the first concrete body 40, while the opposite second and bow-shaped end portions 22 of the anchor parts 12, 14, 16 protrude from the overhead connecting surface 41 of the concrete body 40.
  • fastening element 24 is also also for the fastening element 24.
  • closure member 32 may be a with a in FIG. 7 merely indicated screw 48 provided hoist 46 are connected to the upwardly projecting second end portion 30 of the fastener 24.
  • the hoist 46 is presently equipped with a drawbar eye 50, which is provided with a plate-like mounting or Abstützflansch 52.
  • the closure element 32 Due to its radially widened flange portion 33, the closure element 32 leaves a correspondingly and correspondingly formed, in FIG. 8 shown depression 106 in the formwork outer side 102 of the first concrete body 40th
  • the first concrete body 40 may be configured to connect another or the same hoist 46 to the first end portion 28 of the fastener 24 such that the flange 52 projecting radially outwardly from the drawbar 50 receives support from the recess formed on the first concrete body 40 ,
  • the first concrete body 40 can be rotated by a further 90 ° and thus in a 180 ° relative to its in FIG. 7 shown pivoted configuration, as shown schematically in FIG FIG. 10 is shown.
  • the first concrete body 40 can be lowered with the projecting from the now lower joint surface 41 end portions of the anchor members 12, 14, 16 to another, such as a second formwork assembly 58, in which already fresh concrete to form the second concrete body 60th is provided.
  • the free and protruding from the first concrete body 40 end portion 30 of the fastener 24 may be provided with a geometrically modified closure element 32 'so that no fresh concrete penetrate into the cavity of the fastener 24 and the connection structure 26 remains intact even after completion of the precast concrete part 100 and handling of the precast 100 can be used.
  • the in the FIGS. 10 and 11 only indicated by its contact surface 62 formwork assembly 58 may be formed comparable or identical to the first formwork assembly 38.
  • the filling level of the fresh concrete in the second formwork arrangement 58 corresponds to the formation of a zero wall preferably approximately the length of the protruding from the first concrete body 40 portions of the anchor parts 12, 14, 16. In this way can by lowering of the first concrete body 40 on the second formwork assembly 58 may be formed as a zero wall formed precast element 100, wherein the second end portions 20 of the anchor parts 12, 14, 16 resting on the contact surface 62 of the second formwork arrangement 58 put on.
  • the fastener 24 extends approximately to both opposite formwork outer sides 102, 104. Even after completion of the precast concrete 100, the opposite end portions 28, 30 of the fastener 24 remain accessible, so that the fastener not only for the manufacturing process of the precast concrete part 100, but can also be used equally for its transport and on-site positioning.
  • the precast concrete part 100 at least three, four or even more spaced-apart fasteners 24, by means of which the precast concrete part 100 can be positioned and aligned as accurately as possible.
  • connection arrangements in the xy plane can vary greatly according to the strength requirements as well as according to the geometric configurations of the precast concrete part. In that regard, the number of connection arrangements to be used is also dependent on the dimensioning and specific configuration of the connection arrangements themselves.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Claims (12)

  1. Système d'assemblage pour former un élément préfabriqué en béton à double coque, avec au moins deux parties d'ancrage (12, 14, 16), qui sont disposées à distance l'une de l'autre sur un support (18), dans lequel une première et une deuxième sections d'extrémité (20, 22) opposées l'une à l'autre des parties d'ancrage (12, 14, 16) s'écartent du support (18) dans des directions différentes, de telle manière que les premières sections d'extrémité (20) desdites au moins deux parties d'ancrage (12, 14, 16) soient situées dans un premier plan imaginaire (1), qui s'étend pour l'essentiel parallèlement à un deuxième plan imaginaire (2), dans lequel les deuxièmes sections d'extrémité (22) desdites au moins deux parties d'ancrage (12, 14, 16) sont situées, caractérisé en ce qu'un élément de fixation (24) s'étendant entre les deux plans imaginaires (1, 2) est disposé sur le support (18), élément qui présente dans la région d'au moins une section d'extrémité (28, 30) arrivant au premier ou au deuxième plan imaginaire (1, 2) une structure d'assemblage réalisée sous la forme d'un filet intérieur pour la formation d'un assemblage démontable avec un engin de levage (46) et dans lequel l'élément de fixation (24) présente une douille munie du filet intérieur (26).
  2. Système d'assemblage selon la revendication 1, dans lequel les parties d'ancrage (12, 14, 16) présentent au moins localement un contour courbe, ondulé, dentelé ou plié, au moyen duquel les parties d'ancrage (12, 14, 16) peuvent être ancrées par emboîtement dans un premier corps en béton (40).
  3. Système d'assemblage selon l'une quelconque des revendications précédentes, dans lequel les parties d'ancrage (12, 14, 16) sont fabriquées en un matériau résistant à la corrosion.
  4. Système d'assemblage selon l'une quelconque des revendications précédentes, qui peut être installé au moyen desdites deux parties d'ancrage (12, 14, 16) de façon stable au déversement sur un plan de montage (42) qui coïncide avec le premier ou le deuxième plan (1, 2).
  5. Système d'assemblage selon l'une quelconque des revendications précédentes, dans lequel le support (18) présente dans la direction de la distance desdites au moins deux parties d'ancrage (12, 14, 16) au moins localement un contour courbe, ondulé, dentelé ou plié.
  6. Système d'assemblage selon l'une quelconque des revendications précédentes, dans lequel l'élément de fixation (24) présente respectivement une structure d'assemblage (26) dans des sections d'extrémité (28, 30) arrivant au premier et au deuxième plan (1, 2).
  7. Système d'assemblage selon l'une quelconque des revendications précédentes, dans lequel les parties d'ancrage (12, 14, 16) présentent un contour extérieur essentiellement allongé ou en forme de U comprenant deux branches (12a, 12b).
  8. Système d'assemblage selon l'une quelconque des revendications précédentes 5 à 7, dans lequel au moins une des parties d'ancrage (12, 14, 16) est assemblée au support (18) sur le côté intérieur d'une partie courbe, ondulée, dentelée ou pliée du support (18).
  9. Elément préfabriqué en béton avec un premier corps en béton (40) et avec au moins un système d'assemblage (10) selon l'une quelconque des revendications précédentes, dont les parties d'ancrage (12, 14, 16) sont ancrées localement dans le premier corps en béton (40) et qui sortent localement hors d'une face d'assemblage (41) du premier corps en béton (40).
  10. Elément préfabriqué en béton selon la revendication 9 et avec un deuxième corps en béton (60), dans lequel les parties d'ancrage (12, 14, 16) sortant de la face d'assemblage (41) du premier corps en béton (40) sont ancrées au moins localement.
  11. Elément préfabriqué en béton selon l'une quelconque des revendications précédentes 9 ou 10, dans lequel les premier et deuxième plans imaginaires (1, 2) formés par les parties d'ancrage (12, 14, 16) desdits un ou plusieurs systèmes d'assemblage (10) coïncident avec des côtés extérieurs de coffrage opposés de l'élément préfabriqué en béton (100).
  12. Procédé de fabrication d'un élément préfabriqué en béton au moyen d'au moins un système d'assemblage (10) selon l'une quelconque des revendications 1 à 8, comprenant les étapes suivantes:
    - positionner ledit au moins un système d'assemblage (10) sur un plan de montage (42) d'un premier système de coffrage (38) au moyen desdites au moins deux parties d'ancrage (12, 14, 16), de telle manière que des premières sections d'extrémité (20) des parties d'ancrage (12, 14, 16) prennent appui sur le plan de montage (42),
    - remplir au moins localement le premier système de coffrage (38) avec du béton frais pour former un premier corps en béton (40), de telle manière que les parties d'ancrage (12, 14, 16) soient ancrées au moins localement dans le premier corps en béton (40) et sortent au moins localement hors de la face d'assemblage (41) du premier corps en béton (40),
    - retourner ledit premier corps en béton (40) au moins partiellement durci,
    - agencer le premier corps en béton retourné (40) au-dessus ou sur un deuxième système de coffrage (58) garni de béton frais, de telle manière que des deuxièmes sections d'extrémité (22) des parties d'ancrage (12, 14, 16) sortant du premier corps en béton (40) prennent appui sur un plan de montage (62) du deuxième système de coffrage (58), et
    - dans lequel au moins le premier corps en béton (40) est, au moyen d'un engin de levage (46) coopérant avec le filet intérieur (26) de l'élément de fixation (24), soulevé hors du premier système de coffrage (38), retourné et/ou positionné au-dessus ou sur le deuxième système de coffrage (58).
EP13157773.6A 2013-03-05 2013-03-05 Agencement de liaison destiné à la formation de produits finis en béton à double paroi Not-in-force EP2775063B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP13157773.6A EP2775063B1 (fr) 2013-03-05 2013-03-05 Agencement de liaison destiné à la formation de produits finis en béton à double paroi
BR112015021490A BR112015021490A2 (pt) 2013-03-05 2013-10-25 disposição de ligação para a formação de peças pré-fabricadas de concreto de duas cascas
PCT/EP2013/003222 WO2014135182A1 (fr) 2013-03-05 2013-10-25 Système d'assemblage pour former des éléments préfabriqués en béton à double coque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13157773.6A EP2775063B1 (fr) 2013-03-05 2013-03-05 Agencement de liaison destiné à la formation de produits finis en béton à double paroi

Publications (2)

Publication Number Publication Date
EP2775063A1 EP2775063A1 (fr) 2014-09-10
EP2775063B1 true EP2775063B1 (fr) 2016-10-12

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EP (1) EP2775063B1 (fr)
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CN111424841B (zh) * 2020-05-15 2025-01-14 上海圣奎塑业有限公司 反打保温层预制装配式墙体构件及其制作方法
CN113494644B (zh) * 2021-06-30 2022-11-22 三一筑工科技股份有限公司 一种用于生产预埋防水套管叠合墙构件的方法、施工方法
EP4269054A1 (fr) * 2022-04-26 2023-11-01 Martin Schwarzenbeck & Co. Bauunternehmung und Betonwerk GmbH & Co. KG Elément de double paroi en béton ainsi que produit semi-fini et dispositif de support pour sa fabrication
DE102022110053A1 (de) 2022-04-26 2023-10-26 Martin Schwarzenbeck & Co. Bauunternehmung und Betonwerk GmbH & Co. KG Beton-Doppelwandelement sowie Halbzeug und Stützvorrichtung zu seiner Herstellung
CN115853154B (zh) * 2022-12-02 2023-11-21 无锡锡晟建设有限公司 一种复合式外墙板用环保节能预制构件

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DE1759820A1 (de) * 1968-06-11 1972-01-13 Hubmann Georg Bauelementesatz zur Herstellung der zweiten Schale einer Wandschalung aus zwei durch Teile ihrer Bewehrung miteinander verbundenen mittragenden Fertigteilwandschalungen
DE6753427U (de) * 1968-08-02 1969-04-30 Dorothe Uth Geborene Schneider Stehbuegel fuer armierungszwecke
DE3229488A1 (de) * 1981-09-15 1983-03-31 Georg Christian 8883 Gundelfingen Preißing Abstandhalter fuer bewehrungsmatten
DD211140A1 (de) * 1982-11-12 1984-07-04 Bauakademie Ddr Verbindungselement fuer stahlbetonzellen
DE29713029U1 (de) * 1997-07-23 1997-09-18 Weidner, Georg, 97854 Steinfeld Transport- und Verlegeanker mit eingeschweißter Querverstrebung für Hohl- und Filigranwände
DE19805571C2 (de) 1998-02-12 2003-10-16 Syspro Gruppe Betonbauteile E Betonbauelement
DE19946320B4 (de) 1999-09-28 2012-08-09 Max Bögl Bauunternehmung GmbH & Co. KG Doppelwand
FR2835272B1 (fr) * 2002-01-25 2004-12-24 Didier Helmstetter Dispositif de mur isolant et procede pour sa fabrication
DE102007014366A1 (de) * 2007-03-26 2008-10-02 Gerhard Maier Bewehrungsvorrichtung für Fertigbau-Teile

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BR112015021490A2 (pt) 2018-05-15
EP2775063A1 (fr) 2014-09-10

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