EP3029220A1 - Système à ancrage de transport de doubles parois préfabriquées béton/acier - Google Patents

Système à ancrage de transport de doubles parois préfabriquées béton/acier Download PDF

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Publication number
EP3029220A1
EP3029220A1 EP15195846.9A EP15195846A EP3029220A1 EP 3029220 A1 EP3029220 A1 EP 3029220A1 EP 15195846 A EP15195846 A EP 15195846A EP 3029220 A1 EP3029220 A1 EP 3029220A1
Authority
EP
European Patent Office
Prior art keywords
transport anchor
pressure element
anchor according
steel
transport
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.)
Granted
Application number
EP15195846.9A
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German (de)
English (en)
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EP3029220B1 (fr
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.)
Ikona AG
Original Assignee
Ikona 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
Priority claimed from CH01850/14A external-priority patent/CH710498A2/de
Application filed by Ikona AG filed Critical Ikona AG
Publication of EP3029220A1 publication Critical patent/EP3029220A1/fr
Application granted granted Critical
Publication of EP3029220B1 publication Critical patent/EP3029220B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to a transport anchor for prefabricated reinforced concrete double walls, comprising a steel bracket with a bent central portion for suspending the stop means and on both sides of this subsequent, partially parallel bracket legs, and arranged between the stirrup arms, with these under the male loads in their Longitudinally not rigidly connected pressure element.
  • Such a transport anchor is for example off DE 10 2005 009 708 B4 known.
  • the pressure element is formed there from a resilient material such as wood, plastic or textile fiber reinforced concrete.
  • the bar arms are each inserted in end-side, channel-shaped recesses of the pressure element.
  • a bracket in the end region of the stirrup leg which each overlaps U-shaped, the stirrup legs are held together in their parallel orientation. At the same time the pressure element is thereby trapped between them.
  • the invention has as its object to further improve the proven transport anchor on. This object is achieved by the measures specified in claim 1.
  • one of the two shells is first poured into a formwork designed with the usual lattice girders for reinforcement of this shell and provided with the required number of transport anchors.
  • the second shell is created accordingly and after hardening the first shell is placed on top of it and pressed into the still fresh concrete.
  • the reinforcing elements protruding from the concrete of this shell including the lifting anchor or anchors, are covered with a porous concrete layer, which is unfavorable for their embedment in the concrete of the second shell and in the concrete poured later between the shells.
  • this concrete layer is also at least partially removed by cleaning.
  • the porous concrete layer forms a water-permeable layer in addition to the wood material.
  • the stirrup legs or the steel hoop as a whole can be made thinner.
  • the diameter of the stirrup legs must not be less than a certain extent, in order to avoid that the stirrup legs press into the wood material under load.
  • the pressure element can each be provided on the front side with openings which are penetrated by the stirrup legs.
  • the pressure element can be clamped between the stirrup legs and / or fixed by a welding-technical stitching.
  • this stitching must not be so strong that, between the pressure element and the stirrup legs results in a rigidly behaving under the male loads connection.
  • the desired possible deformation of the bar arms under load in the region of the pressure element can be facilitated by inserting a thin, only a few millimeters thick layer of a material softer compared to steel, in particular of a plastic material.
  • the pressure element may be tubular. In this case, it is preferable if, for example, it is not covered at its ends by the bar arms openings has, through which concrete can penetrate into its interior and closes this against the passage of water. Other openings could be provided for this purpose.
  • the raw-shaped pressure element could be sealed in its longitudinal direction by introducing a sealant against the passage of water.
  • the pressure element can be assembled from two pressure element parts and a connecting element.
  • the connecting element can form a thermal barrier.
  • the connecting element may be made of a fiber-reinforced polyamide.
  • a water barrier may be attached to the connecting element, in particular in the form of a projection running around the circumference of the connecting element.
  • the stirrup legs can be connected to each other in the region of their free ends by a transverse web. As a result, the bar arms are held parallel to each other. In addition, the mentioned clamping pressure can be generated on the printing element. If the crosspiece engages around the stirrup legs in each case in a U shape and is welded to them, this also serves to reduce the required anchoring length of the stirrup legs.
  • the cross bar can also be a profile bar, through holes of which the stirrup legs are simply pushed through and preferably firmly welded therein again.
  • the curved middle portion of the steel bracket can be made at least partially flexible.
  • the steel bracket can consist of a steel cable.
  • the pressure element may consist of a round or square pipe, at the ends of guide elements are attached, through which the steel cable is guided.
  • the steel cable may have anchoring elements intended for anchoring in the reinforced concrete double walls.
  • the distance between the pressure element and the curved center section can be at least 150cm.
  • the steel cable can have a length that can be carried over a length of at least 150cm in the reinforced concrete double walls.
  • the steel cable can have a diameter of between 5mm to 12mm.
  • the transport anchor shown in the figures comprises a steel bracket 10 made of a steel rod with a round cross-section with a bent center portion 11 for suspending the stop means such as a crane or a snap hook.
  • the stop means such as a crane or a snap hook.
  • On both sides of the central portion 11 close in sections parallel to each other arm legs 12 at. Their lower, free end portions 13 are bent towards each other.
  • the steel bracket 10 extends in a plane.
  • the pressure element 20 is made of steel and formed, for example, tubular with a rectangular or round cross-section. Like this in Fig. 3 is shown, the pressure element 20 is provided in each case with the front side by the stirrup arms 12 accessed recesses 21. In Fig. 3a ), the recesses 21 are rounded and close to the stirrup legs 12 at. In Fig. 3b ) The recesses 21 are approximately V-shaped. In Fig. 3c ) is between the pressure element 20 and the stirrup legs 12, an intermediate layer 23 made of a steel softer material, in particular a plastic material inserted. The depth of the recesses 21 is in 3a ) are dimensioned approximately according to the diameter of the stirrup leg 12. In Fig. 3b ) ends the pressure element 20 at about half the diameter of the bar legs 12. In 3 c ) is the pressure element 20 on both sides slightly above the bracket legs 12 before. The depth of the recesses 21 is not necessarily correlated with their shape.
  • Fig. 3 In all three embodiments of Fig. 3 are the bar arms 12 with the pressure element 20, except that they are held positively in the recesses 21 on three sides, at least not rigidly connected.
  • the pressure element 20 can be easily inserted between the bracket legs 12 and held between them, for example by clamping without further fixation. It would also be possible, as in Fig. 3b ), the stirrup legs 12 with the pressure element 20th to be connected by a welding stitch 23.
  • a connection or a clamping may only be so strong that the handling and assembly of the lifting anchor as a whole, on the other hand, however, certain movements of the hanger arms 12 in the recesses 21 under the conditions to be absorbed by the transport anchor loads are possible.
  • 3 c in the recesses 21 additionally existing plastic material 23, these movements are even easier.
  • the pressure element 20 as assumed above tubular and wide enough, it is preferred if it has at its ends by the stirrup legs 12 uncovered openings 24, as in Fig. 2 can be seen.
  • the lateral inner walls of the three pressure elements 20 are indicated by dashed lines. This also shows that the printing elements 20 are open on the front side.
  • the openings 24 can penetrate into the pressure element 20 when installing the transport anchor in the shells of a double wall concrete, which among other things improves its embedding in the shells.
  • the penetrated concrete can also close the pressure element against the passage of water.
  • a sealing compound could be introduced into the pressure element in advance, which may be necessary especially if the pressure element 20 has only a small width, so that openings 24 are only very narrow or possibly not present.
  • the ends 31 of the crossbar 30 are each bent in a U-shape and embrace with these bent ends each of the bar arms 12, where they are also firmly welded with these.
  • the aforementioned clamping pressure for clamping the pressure member 20 between the stirrup legs 12 can also be generated and maintained.
  • a rod-shaped cross bar with a round cross section and bent ends and a profile bar with, for example, rectangular, L-shaped or U-shaped cross-section could be used by end-side holes of which the stirrup legs 12 simply inserted and preferably are again firmly welded. This can be produced with less effort.
  • Fig. 4b shows such a profile bar 30 'with downwardly open U-shape.
  • Fig. 1 two shells 41 and 42 of a reinforced concrete double wall are indicated by dashed lines, so that it can be seen how the inventive transport anchor is usually installed in such a double wall.
  • the two inwardly bent end portions 13 protrude each case out of the shells 41 and 42 a piece out. On them it can be seen whether the transport anchor in the double wall shells 41 and 42 are properly positioned and the bar arms 12 are sufficiently covered with concrete.
  • the stirrup legs 12 embracing, U-shaped bent ends 31 of the crosspiece 30 or, corresponding thereto, the holes framing the material of a profile bar effect with sufficiently strong welded connection an additional anchoring or a higher bond stress of the stirrup legs 12 in the double wall shells 41 and 42, whereby their embedment depth and thus their length can be selected shorter if necessary.
  • This should project as far as possible on all sides by at least 3 mm over the holes or the bar legs 12.
  • the additional anchoring of the hanger arms 12 may be particularly advantageous when using smooth steel for the steel bracket 10 of the inventive transport anchor, as will be explained below.
  • the composite stress of smooth steel is much lower than that of conventional rebar, so that the bar arms 12 must be sized relatively long. Due to the additional anchoring, the length of the stirrup legs can be reduced by up to 30%, if necessary.
  • Reinforced concrete double walls are usually reinforced with elongated lattice girders. If the transport anchor 20 with the stirrup legs 12 has to be installed transversely to the longitudinal extent of the lattice girders, the crossbar 30 is in the way. Either the crosspiece 30 must be omitted for such an installation from the outset or removed, for example by sawing. In both cases, however, when concreting the double-walled shells and also thereafter at the inwardly bent ends 13 of the stirrup legs 12 can be seen whether they are properly embedded in the shells.
  • S235 grade smooth steel is preferably used. Its diameter is typically in the range 13 mm - 20mm, in particular 13 mm or 15 mm. When using a higher quality steel, eg grade S255, the diameter could be reduced to 10 mm.
  • a tubular pressure element could have a wall thickness of approximately 2 mm with a rectangular cross section with external dimensions of only approximately 20 mm ⁇ 20 mm.
  • the length of the bent end sections 13 can be between 30 mm and 100 mm. The turn does not have to be right-angled. An obtuse angle between 105 ° and 150 ° is sufficient.
  • Fig. 5 shows a view of a lifting anchor with a pressure element 20, which is assembled from two pressure element parts 201, 202 and a connecting element 203 for the pressure element parts 201, 202.
  • the connecting element 203 has the shape of a cuboid, wherein on two end faces cuboidal openings are formed.
  • a first pressure element part 201 is inserted into one of the cuboid openings and a second pressure element part 202 is inserted into the other of the cuboid openings.
  • the materials and dimensions, in particular the material of the connecting element 203 and the cross-section and length of the cuboid openings of the connecting element 203, are selected such that the assembled pressure element 20 reliably fulfills the function of achieving a high load capacity. If, for example, the length of the cuboid openings is chosen too short, the pressure element 20 can buckle at high forces.
  • the connecting element 203 is made of a material which is suitable for forming a thermal barrier between the two pressure element parts 201, 202.
  • the connecting element 203 is in particular made of a fiber-reinforced polyamide.
  • the connecting element 203 has a water barrier 204.
  • the water barrier 204 is formed by a circumferential projection on the circumference of the connecting element 203.
  • the dimensioning of the projection can be adapted to the desired effectiveness of the water barrier, with a larger projection improves the effectiveness.
  • the water barrier 204 reduces or eliminates the flow of water along the pressure element 20.
  • the two pressure element parts 201, 202 may have the same length. However, it is also conceivable that the pressure element parts 201, 202 are of different lengths.
  • the pressure element parts 201, 202 may simply be plugged into the connection element 203.
  • An adhesive may also be used to cohesively connect the pressure element parts 201, 202 to the connection element 203.
  • the water barrier 204 may be arranged on an axis of symmetry of the connecting element 203. It is conceivable to arrange the water barrier 204 asymmetrically with respect to the connecting element 203. The water barrier 204 can also be completely eliminated.
  • the surface of the connecting element 203 is designed in such a way that adhesion of concrete or other materials is made difficult or impossible. This can be ensured by adhering the materials no additional possibility is created for a flow of water along the pressure element 20.
  • Fig. 6 shows a transport anchor with a steel bracket 10, which consists of a steel cable 18.
  • the two ends of the steel cable 18 are guided in the reinforced concrete double walls 41, 42.
  • the middle section of the steel cable 18 is located between the reinforced concrete double walls 41, 42 and protrudes out of these.
  • the distance 19 between the middle section of the steel cable 18 and the pressure element 20 is selected so that the steel cable 18 protrudes at least 150 cm from the reinforced concrete double walls.
  • the steel cable 18 may protrude so far that no additional steel cables must be attached to mount stop means for lifting the reinforced concrete double walls 41, 42 of a transport and for moving the reinforced concrete double walls 41, 42nd from the means of transport to an installation point at which the reinforced concrete double walls 41, 42 are installed.
  • the attachment of additional steel cables, the minimum length of the reinforced concrete double walls 41, 42 may be required, for example, due to legal requirements, to avoid that a person before lifting the reinforced concrete double walls 41, 42 must climb the means of transport to the stop means mount.
  • a pressure element 20 is provided, which is then arranged on a central region of the steel cable 18 and holds the two relevant sections of the steel cable 18 at a distance from each other.
  • the steel cable 18 is guided at the ends of the pressure element 20, for example in guides which are attached to the ends of the pressure element 20.
  • the guides can be designed in the form of an eye.
  • the pressure element 20 may be designed as a round or square tube.
  • the guides may be in the form of short tube sections.
  • the guides may be welded to the ends of the pressure element 20.
  • the guides have the shape of a cylindrical tube, which has a diameter of between 10mm and 30mm, preferably 20mm.
  • the steel cable 18 preferably has a diameter of between 5mm and 1 2mm. This results in both the required flexibility and tensile strength.
  • the steel cable 18 preferably has a length such that it can be cast in the reinforced concrete double walls 41, 42 over a length of at least 150 cm. This results in a firm anchoring of the steel cable 18 in the reinforced concrete double walls 41, 42, as is known in ribbed or profiled reinforcing steel.
  • the ends of the steel cord 18 may additionally be provided with anchoring elements 61, 62 for anchoring the steel cord 18 in the reinforced concrete double walls 41, 42.
  • the anchoring elements 61, 62 can be designed in the form of rope thimbles.
  • the steel cable 18 looks 150cm out of the concrete at the top so that a worker standing next to the wall can strike the crane hook.
  • the wall height is between 2.5m and 3.0m.
  • the steel cord 18 is flexible and can be arranged as needed to fit into prefabricated reinforced concrete double walls after installation of the lifting anchor 41, 42 protrudes from the reinforced concrete double walls 41, 42 or that it is between the reinforced concrete double walls 41, 42.
  • the attachment of the stop means is simplified.
  • the steel cable 18 is located between the reinforced concrete double walls 41, 42, the completion of a concrete wall by pouring the reinforced concrete double walls 41, 42 is simplified.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Bridges Or Land Bridges (AREA)
EP15195846.9A 2014-12-02 2015-11-23 Système à ancrage de transport de doubles parois préfabriquées béton/acier Active EP3029220B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01850/14A CH710498A2 (de) 2014-12-02 2014-12-02 Transportanker für vorgefertigte Stahlbeton-Doppelwände.
CH01036/15A CH710495A2 (de) 2014-12-02 2015-07-16 Transportanker für vorgefertigte Stahlbeton-Doppelwände.

Publications (2)

Publication Number Publication Date
EP3029220A1 true EP3029220A1 (fr) 2016-06-08
EP3029220B1 EP3029220B1 (fr) 2021-09-29

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3309327A1 (fr) 2016-10-11 2018-04-18 Econac bvba Réservoir de transport
DE102016121271A1 (de) 2016-11-08 2018-05-09 Betonwerk Oschatz GmbH Transportanker für Doppelwandbauelemente
DE102017102903A1 (de) 2017-02-14 2018-09-06 Georg Weidner Bewehrungsmaterial aus Flachstahl
EP3441542A1 (fr) * 2017-08-10 2019-02-13 ALP Supply, Inc. Ancre de levage de composant en béton préfabriqué
DE202018102224U1 (de) * 2018-04-20 2019-07-23 Philipp Gmbh Transportanker
CN110485558A (zh) * 2019-09-09 2019-11-22 信息产业电子第十一设计研究院科技工程股份有限公司 一种索杆协同吊挂重物的连接结构及方法
EP3640410A1 (fr) * 2018-10-18 2020-04-22 BS Ingenieure AG Ancre de levage
DE102019102065A1 (de) 2019-01-28 2020-07-30 Econac Bvba Transportanker mit Faserkunststoffverbundmaterial-Druckelement
EP3842601A1 (fr) 2019-12-27 2021-06-30 Przedsiebiorstwo Produkcyjno-Handlowe "ALRUNO" Aleksander Szulc Ancrage de transport
EP3964674A1 (fr) 2020-09-08 2022-03-09 Aleksander Szulc Ancrage de transport pour murs creux
US11421431B1 (en) 2019-02-21 2022-08-23 ALP Supply, Inc. Erection anchor with coil legs

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL131162U1 (pl) 2022-12-27 2024-07-01 Szulc Aleksander Przedsiębiorstwo Produkcyjno-Handlowe Alruno Kotwa transportowa do podnoszenia i transportu elementów budowlanych

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29706644U1 (de) 1997-04-14 1997-08-14 Bauersfeld, Fred, Dipl.-Ing., 39240 Calbe Betonanker für Stahlbeton-Konstruktionen
DE19853712A1 (de) * 1998-11-20 2000-05-31 Weidner Georg Transport- und Verlegeanker mit querverstrebten Längsverankerungsschenkeln
DE10038249A1 (de) 1999-08-12 2001-04-05 Syspro Gruppe Betonbauteile E Transportanker für sogenannte Doppelwände
WO2003104577A1 (fr) * 2002-06-10 2003-12-18 U-H Rakennus Oy Ensemble element de construction
DE102005009708B4 (de) 2005-03-03 2009-08-13 Pape, Heinz, Dr.-Ing Transportanker für vorgefertigte Stahlbetonelemente
DE102011055142A1 (de) * 2011-02-09 2012-08-09 Bs Ingenieure Ag Doppelwand und Transportanker für eine Doppelwand

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29706644U1 (de) 1997-04-14 1997-08-14 Bauersfeld, Fred, Dipl.-Ing., 39240 Calbe Betonanker für Stahlbeton-Konstruktionen
DE19853712A1 (de) * 1998-11-20 2000-05-31 Weidner Georg Transport- und Verlegeanker mit querverstrebten Längsverankerungsschenkeln
DE10038249A1 (de) 1999-08-12 2001-04-05 Syspro Gruppe Betonbauteile E Transportanker für sogenannte Doppelwände
WO2003104577A1 (fr) * 2002-06-10 2003-12-18 U-H Rakennus Oy Ensemble element de construction
DE102005009708B4 (de) 2005-03-03 2009-08-13 Pape, Heinz, Dr.-Ing Transportanker für vorgefertigte Stahlbetonelemente
DE102011055142A1 (de) * 2011-02-09 2012-08-09 Bs Ingenieure Ag Doppelwand und Transportanker für eine Doppelwand

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3309327A1 (fr) 2016-10-11 2018-04-18 Econac bvba Réservoir de transport
DE102016119352A1 (de) 2016-10-11 2018-04-26 Econac Bvba Transportanker
DE102016121271A1 (de) 2016-11-08 2018-05-09 Betonwerk Oschatz GmbH Transportanker für Doppelwandbauelemente
DE102017102903A1 (de) 2017-02-14 2018-09-06 Georg Weidner Bewehrungsmaterial aus Flachstahl
EP3441542A1 (fr) * 2017-08-10 2019-02-13 ALP Supply, Inc. Ancre de levage de composant en béton préfabriqué
CN109440943A (zh) * 2017-08-10 2019-03-08 Alp供应股份有限公司 用于预浇制混凝土构件的提升锚
US11549273B2 (en) 2017-08-10 2023-01-10 ALP Supply, Inc. Lift anchor for precast concrete component
DE202018102224U1 (de) * 2018-04-20 2019-07-23 Philipp Gmbh Transportanker
EP3640410A1 (fr) * 2018-10-18 2020-04-22 BS Ingenieure AG Ancre de levage
DE102019102065A1 (de) 2019-01-28 2020-07-30 Econac Bvba Transportanker mit Faserkunststoffverbundmaterial-Druckelement
WO2020157041A1 (fr) 2019-01-28 2020-08-06 Econac Bvba Ancrage de transport comprenant un élément de pression en matériau composite en fibres synthétiques
US20210355696A1 (en) * 2019-01-28 2021-11-18 Econac Bvba Transport anchor having a fibre-plastic composite material pressure element
AU2020213876B2 (en) * 2019-01-28 2022-06-30 Econac Bvba Transport anchor having a fibre-plastic composite material pressure element
US11834854B2 (en) 2019-01-28 2023-12-05 Econac Bvba Transport anchor having a fibre-plastic composite material pressure element
US11421431B1 (en) 2019-02-21 2022-08-23 ALP Supply, Inc. Erection anchor with coil legs
CN110485558A (zh) * 2019-09-09 2019-11-22 信息产业电子第十一设计研究院科技工程股份有限公司 一种索杆协同吊挂重物的连接结构及方法
EP3842601A1 (fr) 2019-12-27 2021-06-30 Przedsiebiorstwo Produkcyjno-Handlowe "ALRUNO" Aleksander Szulc Ancrage de transport
EP3964674A1 (fr) 2020-09-08 2022-03-09 Aleksander Szulc Ancrage de transport pour murs creux

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