EP3842601A1 - Transportanker - Google Patents

Transportanker Download PDF

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Publication number
EP3842601A1
EP3842601A1 EP19219936.2A EP19219936A EP3842601A1 EP 3842601 A1 EP3842601 A1 EP 3842601A1 EP 19219936 A EP19219936 A EP 19219936A EP 3842601 A1 EP3842601 A1 EP 3842601A1
Authority
EP
European Patent Office
Prior art keywords
bar
arms
anchor
transport
transport anchor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19219936.2A
Other languages
English (en)
French (fr)
Inventor
Aleksander Szulc
Pawe Wiechoczek
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.)
Przedsiebiorstwo Produkcyjno Handlowe "alruno" Aleksander Szulc
Przed Produkcyjno Handlowe Alruno Aleksander Szulc
Original Assignee
Przedsiebiorstwo Produkcyjno Handlowe "alruno" Aleksander Szulc
Przed Produkcyjno Handlowe Alruno Aleksander Szulc
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 Przedsiebiorstwo Produkcyjno Handlowe "alruno" Aleksander Szulc, Przed Produkcyjno Handlowe Alruno Aleksander Szulc filed Critical Przedsiebiorstwo Produkcyjno Handlowe "alruno" Aleksander Szulc
Priority to EP19219936.2A priority Critical patent/EP3842601A1/de
Publication of EP3842601A1 publication Critical patent/EP3842601A1/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a transport anchor for transporting building elements in the form of diaphragm walls with an air gap.
  • the industry is constantly looking for an optimal, durable transport anchor which allows for safe transport of increasingly larger and thus heavier building elements in the form of walls to the construction site.
  • the patent description DE102016121271 discloses a transport anchor for double-walled concrete elements. It is made from a bracket shaped in such a way that its arms are mutually parallel and is intended for embedding in double-walled elements, characterized by having anchor arms connected by a crossbar having an adaptive clamping element. According to the invention, the clamping element is made as a thermally insulated hollow body.
  • a clamping element in the form of a crossbar is attached by its ends to the arms of the transport anchor by welding.
  • the clamping element is connected by spot welding. The welding process also locally change and weaken the surrounding material, which decreases stability.
  • the transport anchor described in the DE 100 38 249 B4 document also has a clamping element made of steel and welded to the anchor legs. High forces during the transport of double walls to the construction site overload these weak anchor's points, thereby increasing the risk of welds cracking, and subsequently leading to a very likely excessive deformation of the anchor at a later stage.
  • the welds may cause the transport anchor to break off from the concrete, which may result in the breakdown of the prefabricated concrete part.
  • the object of the invention is to provide a new transport anchor of the said type with even better performance, cheaper in manufacturing while meeting all the technical requirements, and with a structure that does not affect the anchor's load capacity, and therefore making it safe for use on construction sites.
  • the subject of the invention is a transport anchor for hollow walls made from a bar with a bent central part, the ends of which are passed through openings made in a crossbar connecting them rigidly forming arms parallel to each other, characterized in that the bar arms are twisted along their axes, while the crossbar is a steel element with a quadrilateral cross-section and has an internal filling in the form of polyurethane foam.
  • the bar is twisted along the entire length of the transport anchor arms.
  • the bar is twisted over a specific section of the transport anchor arms.
  • the transport anchor is made of a steel bar with a quadrilateral cross-section.
  • the transport anchor is made of a steel bar with a hexagon cross-section.
  • the bar arms are twisted 1.5 to 2.5 times for every 100 mm of their length.
  • the advantage of a transport anchor for hollow walls with a structure according to the invention is the complete absence of any mechanical interference into the material (welding) from which it is made, making it possible to eliminate ways of joining elements that might weaken its durability, which is of key importance due to the danger of accidents that may occur during transport of such large building materials.
  • the optimal anchoring of the element in the wall slab is ensured by embedding in concrete the anchor arms which are twisted along their axes together with the crossbar that connects them.
  • twisting the bar arms from 1.5 to 2.5 times for every 100 mm of their length changes the internal structure of the steel, which results in an increased bar tensile strength, while maintaining the required plasticity, e.g. at a level consistent with the guidelines of the German standard VDI/BV-BS 6205.
  • one arm torsion is equivalent to it being twisted 360° along its axis.
  • the increased tensile strength and the shape of the arms obtained after twisting allow a more secure fixing of the transport anchor according to the invention in concrete, which in turn leads to an increased load capacity of the anchor. Twisting the bar arms themselves causes the anchor element that protrudes from the concrete to have no effect on the original plasticity of the material, which is a very important element due to the nature work for which this part of the transport anchor is designed.
  • twisting the bar arms also allows for better anchoring of the transport anchor according to the invention in concrete.
  • twisting the bar protects the anchor's crossbar from changing its position (falling out) without the need to make welded or welded joint. Therefore, the strength of the transport anchor and its load capacity do not get worse.
  • Transport anchor for hollow walls in the embodiment is made from a bar having a bent central part 1, the ends of which are passed through openings 4, 5 made in a crossbar 3 that connects them rigidly forming arms 6, 7 parallel to each other.
  • the bar arms 6 , 7 are twisted axially along their entire length or, in another version, along a given section, while the crossbar 3 is a steel element with a quadrilateral cross-section and has an internal filling in the form of polyurethane foam having thermal insulation properties.
  • the steel bar from which the transport anchor is made has a quadrilateral cross-section or, in another version, a hexagon one.
  • Transport anchor for hollow walls in the embodiment is made from a bar having a bent central part 1, the ends of which are passed through openings 4, 5 made in a crossbar 3 that connects them rigidly forming arms 6, 7 parallel to each other.
  • the bar arms 6 , 7 are twisted axially along their entire length or, in another version, along a given section.
  • the bar arms 6 , 7 are twisted along the entire length, and the bar arms 6, 7 are twisted 1.5 times for every 100 mm of their length (in other embodiments the number of twists equals from 1.5 to 2.5), and one torsion of the arms 6 , 7 is equivalent to them being twisted 360° along their axes.
  • Such a number of torsions over the length of 100 mm changes the steel structure, which results in an increased tensile strength of the bar arms, while maintaining the required plasticity.
  • Crossbar 3 is a steel element with a quadrilateral cross-section and has an internal filling in the form of polyurethane foam having thermal insulation properties.
  • the steel bar from which the transport anchor is made has a quadrilateral cross-section or, in another version, a hexagon one.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Reinforcement Elements For Buildings (AREA)
EP19219936.2A 2019-12-27 2019-12-27 Transportanker Withdrawn EP3842601A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19219936.2A EP3842601A1 (de) 2019-12-27 2019-12-27 Transportanker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19219936.2A EP3842601A1 (de) 2019-12-27 2019-12-27 Transportanker

Publications (1)

Publication Number Publication Date
EP3842601A1 true EP3842601A1 (de) 2021-06-30

Family

ID=76034371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19219936.2A Withdrawn EP3842601A1 (de) 2019-12-27 2019-12-27 Transportanker

Country Status (1)

Country Link
EP (1) EP3842601A1 (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8207185U1 (de) * 1982-03-13 1982-09-16 Deha-Baubedarf Gmbh & Co Kg, 6080 Gross-Gerau Transportanker fuer betonfertigteile
DE19853712A1 (de) * 1998-11-20 2000-05-31 Weidner Georg Transport- und Verlegeanker mit querverstrebten Längsverankerungsschenkeln
DE10038249B4 (de) 1999-08-12 2006-02-09 Syspro-Gruppe Betonbauteile E.V. Transportanker für sogenannte Doppelwände
DE102006062411A1 (de) * 2006-12-22 2008-06-26 Weidemann, Christian Transportanker für ein doppelschaliges Wand- oder/und Deckenbauelement
DE202013100995U1 (de) * 2013-03-07 2013-05-03 Friedrich Schroeder Gmbh & Co. Kg Transportanker für Doppelwände
DE202014103774U1 (de) * 2014-08-14 2015-11-17 Philipp Gmbh Hohlwandanker
EP3029220A1 (de) 2014-12-02 2016-06-08 Ikona AG Transportanker für vorgefertigte stahlbeton doppelwände
DE102016121271A1 (de) 2016-11-08 2018-05-09 Betonwerk Oschatz GmbH Transportanker für Doppelwandbauelemente
PL427814A1 (pl) * 2018-11-19 2019-05-06 Szulc Aleksander Przed Produkcyjno Handlowe Alruno Kotwa transportowa do ścian z pustką

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8207185U1 (de) * 1982-03-13 1982-09-16 Deha-Baubedarf Gmbh & Co Kg, 6080 Gross-Gerau Transportanker fuer betonfertigteile
DE19853712A1 (de) * 1998-11-20 2000-05-31 Weidner Georg Transport- und Verlegeanker mit querverstrebten Längsverankerungsschenkeln
DE10038249B4 (de) 1999-08-12 2006-02-09 Syspro-Gruppe Betonbauteile E.V. Transportanker für sogenannte Doppelwände
DE102006062411A1 (de) * 2006-12-22 2008-06-26 Weidemann, Christian Transportanker für ein doppelschaliges Wand- oder/und Deckenbauelement
DE202013100995U1 (de) * 2013-03-07 2013-05-03 Friedrich Schroeder Gmbh & Co. Kg Transportanker für Doppelwände
DE202014103774U1 (de) * 2014-08-14 2015-11-17 Philipp Gmbh Hohlwandanker
EP3029220A1 (de) 2014-12-02 2016-06-08 Ikona AG Transportanker für vorgefertigte stahlbeton doppelwände
DE102016121271A1 (de) 2016-11-08 2018-05-09 Betonwerk Oschatz GmbH Transportanker für Doppelwandbauelemente
PL427814A1 (pl) * 2018-11-19 2019-05-06 Szulc Aleksander Przed Produkcyjno Handlowe Alruno Kotwa transportowa do ścian z pustką

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