EP3540142B1 - Tie - Google Patents

Tie Download PDF

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Publication number
EP3540142B1
EP3540142B1 EP19155655.4A EP19155655A EP3540142B1 EP 3540142 B1 EP3540142 B1 EP 3540142B1 EP 19155655 A EP19155655 A EP 19155655A EP 3540142 B1 EP3540142 B1 EP 3540142B1
Authority
EP
European Patent Office
Prior art keywords
bar
external
internal
tie
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19155655.4A
Other languages
German (de)
French (fr)
Other versions
EP3540142A1 (en
Inventor
Juha Pulkkanen
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.)
Anstar Oy
Original Assignee
Anstar Oy
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 Anstar Oy filed Critical Anstar Oy
Priority to PL19155655T priority Critical patent/PL3540142T3/en
Publication of EP3540142A1 publication Critical patent/EP3540142A1/en
Application granted granted Critical
Publication of EP3540142B1 publication Critical patent/EP3540142B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
    • 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 object of the invention is a tie according to the preamble of claim 1 for connecting internal layer and external layer of a sandwich building element to each other. Furthermore, the object of the invention is a sandwich building element, which comprises an internal layer and an external layer.
  • Ties are used to bind an internal layer and an external layer of concrete sandwich building elements to each other. Ties are installed into fresh concrete of the external layer. Insulations of the element are placed between ties so that ties are in edgings of insulations. Thereafter, the internal layer of the element is cast on the insulation so that the tie extends also into concrete of the internal layer. After concrete has hardened, ties bind the internal layer and the external layer and the insulation between them to each other.
  • Document DE 20 23 363 A1 discloses a tie according to a preamble of claim 1.
  • the aim of this invention is to achieve an improved tie for connecting internal layer and external layer of a sandwich building element to each other.
  • tie comprises an internal bar fittable into the internal layer of the building element, and an external bar, which is fittable into the external layer, and the internal bar and the external bar being parallel with each other and at a distance from each other, and a bracing connecting the internal bar and external bar.
  • the tie comprises a looplike further bond for fastening the tie to a building element,.
  • the bracing, the internal bar, the external bar and the further bond are formed from the same wire blank by bending.
  • the bracing comprises three sides of which a first side and a second side are arranged in the V-form to form a first angle opening towards the internal bar, and the first side, the second side and the internal bar form a triangle, wherein the first side and the second side form sides for the triangle and the internal bar forms the base for the triangle, and the second side and a third side are arranged in the V-form to form a second angle opening towards the external bar.
  • the second side, the third side and the external bar form a triangle, wherein the second side and the third side form sides for the triangle and the external bar forms the base for the triangle.
  • the further bond is formed in the wire blank between the first side and the internal bar.
  • the whole tie i.e. internal bar, external bar bracing and further bond are formed of the same wire blank by bending.
  • Significant advantages can be achieved by the invention.
  • a tie according to the invention a part of a bracing, second bar and a further bond between them are formed from the one and the same wire blank by bending.
  • the whole tie, i.e. bracing, internal bar and external bar and further bond are preferably formed from the one and the same wire blank by bending. Then the bracing, further bond and the internal bar and/or the external bar do not have to be formed as separate parts at first, and thereafter to form a tie of them by connecting the parts together by welding.
  • a tie according to the invention can be produced by cutting the wire forming the tie or a part of the tie to a wire blank of desired length and by bending the wire blank to its final form so that the blank forms the whole tie or a desired part of the tie.
  • wire blank can be bent to a desired form at first and then the wire can be cut. Then the wire is drawn out of the wire coil, bent to a desired form, and finally, the wire is cut.
  • the production method speeds up the production of a tie significantly and thus reduces production costs compared to a traditional solution.
  • the wire forming a tie can be bent to a desired form by existing bending devices.
  • the tie 1 presented in the drawings is used to connect internal layer 12 and external layer 13 of a building element 11 to each other.
  • the tie 1 is so called beam tie, which is used to connect internal layer 12 and external layer 13 to each other in lower building elements in places where a conventional diagonal tie does not fit, for example above a window beam.
  • Internal layer 12 and external layer 13 are produced of concrete.
  • a tie 1 comprises a diagonal, i.e. a bracing 4 and two bar threads, i.e. an internal bar 2 and an external bar 3. Internal bar 2 and external bar 3 are parallel with each other and at a distance from each other.
  • the bracing 4 is formed of a wire.
  • the bracing 4 comprises three sides 5, 6, 7, which form two angles 8, 9 opening in opposite directions.
  • a first side 5 and second side 6 are arranged in the V-form so that they form a first angle 8.
  • First angle 8 opens towards the internal bar 2.
  • First side 5, second side 6 and the internal bar 2 form a triangle, preferably an isosceles triangle, wherein first side 5 and second side 6 form the sides for the triangle, and the internal bar 2 forms the base for the triangle.
  • a third side 7 and second side 6 are arranged in the V-form so that they form a second angle 9.
  • Second angle 9 opens towards the external bar 3.
  • Second side 6, third side 7 and the external bar 3 form a triangle, preferably a rectangular triangle.
  • the external bar 3 and third side 7 are at a right angle to each other.
  • the external bar 3 and the internal bar 2 are at a distance from each other.
  • the external bar 3 and the internal bar 2 are parallel to each other.
  • First angle 8 and second angle 9 are rounded.
  • First angle 8 forms a first bond for fastening the tie 1 into the external layer 13 of the building element 11.
  • Second angle 9 forms a second bond for fastening the tie 1 into the internal layer 12.
  • the tie 1 comprises a further bond 15 for fastening the tie 1 into the internal layer 12 or into the external layer 13 of the building element 11.
  • the tie 1 is attached into the internal layer 12 by a further bond 15.
  • the further bond 15 is looplike. At least a part of the bracing 4, at least a part of the internal bar 2 or external bar 3 and further bond 15 are formed of the same wire blank by bending. Wire is of stainless steel. The diameter of the wire is 3-7 mm, typically 5 mm.
  • the further bond 15 is formed into wire blank between bracing 4 and said bar, in the drawings internal bar 2.
  • the further bond 15 is placed in thread blank between first side 5 and internal bar 2. Overlapping parts of the wire forming the loop of the looplike further bond 15 are welded together at a crossing point 16.
  • the tie 1, i.e. bracing 4, internal bar 2 and external bar 3 and further bond 15 are formed of the same wire by bending.
  • Wire forming the tie 1 is of stainless steel.
  • the diameter of the wire is 3-7 mm, typically 5 mm.
  • Bracing 4, e.g. first side 5 and/or second side of the bracing, are attached to the external bar 3 by welding, by spot welding, for example.
  • the welding point is at the crossing point of first side 5 and/or second side 6 and the external bar 3.
  • the wire forming the bracing 4, external bar 3, internal bar 2 and further bond 15 comprises only two ends, first end is at the end of the internal bar 2 and second end is at the end of the external bar 3.
  • a sandwich building element 11 comprises an internal layer 12 and an external layer 13, which are bound to each other with a tie 1 described above.
  • the internal bar 2 of the tie is placed into concrete of the internal layer 12, and the external bar 3 into concrete of external layer 13.
  • first angle 8 is placed into concrete of the external layer 13, and second angle 9 into concrete of the internal layer 12.
  • Further bond 15 is placed into concrete of either an internal layer 12 as in figure 2 or into concrete of external layer 13.
  • insulation material 14 mineral wool, for example.
  • Tie 1 is assembled at its place into the sandwich building element 11 so that the external bar 3 is placed into fresh concrete of the external layer 13. Also the tip of first angle 8 is placed into concrete of the external layer 13. Thereafter, insulations 14 of building element 11 are placed so that tie 1 or ties are in edgings of insulations 14. The internal layer 12 of the building element is cast on insulation 14 so that the internal bar 2 extends into concrete of the internal layer 12. Further bond 15 is in concrete of external layer 13 or in concrete of internal layer 12, as in figure 2 . Also the tip of second angle 9 extends into concrete of the internal layer 12. After the concrete has hardened the tie 1 binds the internal layer 12 and the external layer 13 to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Building Environments (AREA)

Description

  • The object of the invention is a tie according to the preamble of claim 1 for connecting internal layer and external layer of a sandwich building element to each other. Furthermore, the object of the invention is a sandwich building element, which comprises an internal layer and an external layer.
  • Ties are used to bind an internal layer and an external layer of concrete sandwich building elements to each other. Ties are installed into fresh concrete of the external layer. Insulations of the element are placed between ties so that ties are in edgings of insulations. Thereafter, the internal layer of the element is cast on the insulation so that the tie extends also into concrete of the internal layer. After concrete has hardened, ties bind the internal layer and the external layer and the insulation between them to each other.
  • Document DE 20 23 363 A1 discloses a tie according to a preamble of claim 1.
  • The aim of this invention is to achieve an improved tie for connecting internal layer and external layer of a sandwich building element to each other.
  • The aim of the invention is achieved with a tie according to claim 1, which tie comprises an internal bar fittable into the internal layer of the building element, and an external bar, which is fittable into the external layer, and the internal bar and the external bar being parallel with each other and at a distance from each other, and a bracing connecting the internal bar and external bar. Additionally, the tie comprises a looplike further bond for fastening the tie to a building element,. The bracing, the internal bar, the external bar and the further bond are formed from the same wire blank by bending. The bracing comprises three sides of which a first side and a second side are arranged in the V-form to form a first angle opening towards the internal bar, and the first side, the second side and the internal bar form a triangle, wherein the first side and the second side form sides for the triangle and the internal bar forms the base for the triangle, and the second side and a third side are arranged in the V-form to form a second angle opening towards the external bar. The second side, the third side and the external bar form a triangle, wherein the second side and the third side form sides for the triangle and the external bar forms the base for the triangle. The further bond is formed in the wire blank between the first side and the internal bar.
  • According to the invention the whole tie, i.e. internal bar, external bar bracing and further bond are formed of the same wire blank by bending. Significant advantages can be achieved by the invention. By further bond the fastening of a tie into a building element can be improved. A tie according to the invention, a part of a bracing, second bar and a further bond between them are formed from the one and the same wire blank by bending. The whole tie, i.e. bracing, internal bar and external bar and further bond are preferably formed from the one and the same wire blank by bending. Then the bracing, further bond and the internal bar and/or the external bar do not have to be formed as separate parts at first, and thereafter to form a tie of them by connecting the parts together by welding. A tie according to the invention can be produced by cutting the wire forming the tie or a part of the tie to a wire blank of desired length and by bending the wire blank to its final form so that the blank forms the whole tie or a desired part of the tie. Alternatively, wire blank can be bent to a desired form at first and then the wire can be cut. Then the wire is drawn out of the wire coil, bent to a desired form, and finally, the wire is cut. The production method speeds up the production of a tie significantly and thus reduces production costs compared to a traditional solution. The wire forming a tie can be bent to a desired form by existing bending devices.
  • In the following, the invention will be described in more detail by the aid of an example with reference to the attached drawings, wherein
    • Fig. 1
    shows a side view of a tie according to one embodiment of the invention, and
    Fig. 2
    shows the tie of Fig. 1 installed in a sandwich building element.
  • The tie 1 presented in the drawings is used to connect internal layer 12 and external layer 13 of a building element 11 to each other. The tie 1 is so called beam tie, which is used to connect internal layer 12 and external layer 13 to each other in lower building elements in places where a conventional diagonal tie does not fit, for example above a window beam. Internal layer 12 and external layer 13 are produced of concrete.
  • A tie 1 comprises a diagonal, i.e. a bracing 4 and two bar threads, i.e. an internal bar 2 and an external bar 3. Internal bar 2 and external bar 3 are parallel with each other and at a distance from each other. The bracing 4 is formed of a wire. The bracing 4 comprises three sides 5, 6, 7, which form two angles 8, 9 opening in opposite directions. A first side 5 and second side 6 are arranged in the V-form so that they form a first angle 8. First angle 8 opens towards the internal bar 2. First side 5, second side 6 and the internal bar 2 form a triangle, preferably an isosceles triangle, wherein first side 5 and second side 6 form the sides for the triangle, and the internal bar 2 forms the base for the triangle.
  • A third side 7 and second side 6 are arranged in the V-form so that they form a second angle 9. Second angle 9 opens towards the external bar 3. Second side 6, third side 7 and the external bar 3 form a triangle, preferably a rectangular triangle. Then the external bar 3 and third side 7 are at a right angle to each other. The external bar 3 and the internal bar 2 are at a distance from each other. The external bar 3 and the internal bar 2 are parallel to each other. First angle 8 and second angle 9 are rounded. First angle 8 forms a first bond for fastening the tie 1 into the external layer 13 of the building element 11. Second angle 9 forms a second bond for fastening the tie 1 into the internal layer 12.
  • Additionally, the tie 1 comprises a further bond 15 for fastening the tie 1 into the internal layer 12 or into the external layer 13 of the building element 11. In the embodiment of the drawings the tie 1 is attached into the internal layer 12 by a further bond 15. The further bond 15 is looplike. At least a part of the bracing 4, at least a part of the internal bar 2 or external bar 3 and further bond 15 are formed of the same wire blank by bending. Wire is of stainless steel. The diameter of the wire is 3-7 mm, typically 5 mm. The further bond 15 is formed into wire blank between bracing 4 and said bar, in the drawings internal bar 2. The further bond 15 is placed in thread blank between first side 5 and internal bar 2. Overlapping parts of the wire forming the loop of the looplike further bond 15 are welded together at a crossing point 16.
  • In the embodiment of the drawings the tie 1, i.e. bracing 4, internal bar 2 and external bar 3 and further bond 15 are formed of the same wire by bending. Wire forming the tie 1 is of stainless steel. The diameter of the wire is 3-7 mm, typically 5 mm. Bracing 4, e.g. first side 5 and/or second side of the bracing, are attached to the external bar 3 by welding, by spot welding, for example. The welding point is at the crossing point of first side 5 and/or second side 6 and the external bar 3. The wire forming the bracing 4, external bar 3, internal bar 2 and further bond 15 comprises only two ends, first end is at the end of the internal bar 2 and second end is at the end of the external bar 3.
  • A sandwich building element 11 according to the invention comprises an internal layer 12 and an external layer 13, which are bound to each other with a tie 1 described above. The internal bar 2 of the tie is placed into concrete of the internal layer 12, and the external bar 3 into concrete of external layer 13. Additionally, first angle 8 is placed into concrete of the external layer 13, and second angle 9 into concrete of the internal layer 12. Further bond 15 is placed into concrete of either an internal layer 12 as in figure 2 or into concrete of external layer 13. Between the internal layer 12 and external layer 13 there is insulation material 14, mineral wool, for example.
  • Tie 1 is assembled at its place into the sandwich building element 11 so that the external bar 3 is placed into fresh concrete of the external layer 13. Also the tip of first angle 8 is placed into concrete of the external layer 13. Thereafter, insulations 14 of building element 11 are placed so that tie 1 or ties are in edgings of insulations 14. The internal layer 12 of the building element is cast on insulation 14 so that the internal bar 2 extends into concrete of the internal layer 12. Further bond 15 is in concrete of external layer 13 or in concrete of internal layer 12, as in figure 2. Also the tip of second angle 9 extends into concrete of the internal layer 12. After the concrete has hardened the tie 1 binds the internal layer 12 and the external layer 13 to each other.
  • It is obvious to the person skilled in the art that the various embodiments of the invention are not limited solely to the examples described above, but that they may be varied within the scope of the claims presented below.

Claims (3)

  1. A tie (1) for connecting an internal layer (12) and an external layer (13) of a sandwich building element (11) to each other, which tie (1) comprises an internal bar (2) fittable into the internal layer (12) of the building element and an external bar (3) fittable into the external layer (13), and the internal bar (2) and the external bar (3) being parallel with each other and at a distance from each other, and
    a bracing (4) connecting the internal bar (2) and the external bar (3), and a looplike further bond (15) for fastening the tie (1) to a building element (11),
    wherein
    - the bracing (4), the internal bar, the external bar (2, 3) and the further bond (15) are formed from the same wire blank by bending,
    - the bracing (4) comprises three sides of which a first side (5) and a second side (6) are arranged in the V-form to form a first angle (8) opening towards the internal bar (2), and
    the first side (5), the second side and the internal bar (2) form a triangle, wherein the first side (5) and the second side (6) form sides for the triangle and the internal bar (2) forms the base for the triangle, and
    the second side (6) and a third side (7) are arranged in the V-form to form a second angle (9) opening towards the external bar (3),
    characterized in that
    - the second side (6), the third side (7) and the external bar (3) form a triangle, wherein the second side (6) and the third side (7) form sides for the triangle and the external bar (3) forms the base for the triangle, and
    - the further bond (15) is formed in the wire blank between the first side (5) and the internal bar (2).
  2. The tie (1) according to claim 1, characterized in that the external bar (3) is fastened to the bracing (4) and/or the internal bar (2) is fastened to the bracing (4) by welding.
  3. A sandwich building element (11) comprising an internal layer (12) and an external layer (13), characterized in that the internal layer (12) and the external layer (13) are bound to each other with a tie (1) according to claim 1 or 2, the internal bar (2) of which tie (1) is placed into concrete of the internal layer (12), the external bar (3) into concrete of the external layer (13) and the further bond (15) into concrete of the internal layer (12).
EP19155655.4A 2018-03-12 2019-02-06 Tie Active EP3540142B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19155655T PL3540142T3 (en) 2018-03-12 2019-02-06 Tie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FIU20184042U FI12036U1 (en) 2018-03-12 2018-03-12 TRUSS

Publications (2)

Publication Number Publication Date
EP3540142A1 EP3540142A1 (en) 2019-09-18
EP3540142B1 true EP3540142B1 (en) 2021-03-31

Family

ID=62111299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19155655.4A Active EP3540142B1 (en) 2018-03-12 2019-02-06 Tie

Country Status (5)

Country Link
EP (1) EP3540142B1 (en)
DK (1) DK3540142T3 (en)
FI (1) FI12036U1 (en)
LT (1) LT3540142T (en)
PL (1) PL3540142T3 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937051U (en) * 1966-01-25 1966-04-21 Ernst Dr Ing Haeussler PRE-FABRICATED WALL ELEMENT MADE OF REINFORCED CONCRETE OUTER PANEL, REINFORCED CONCRETE INNER PANEL AND INTERMEDIATE INSULATION LAYER.
DE2023363A1 (en) * 1970-05-13 1971-12-02 Körner, Manfred, 7500 Karlsruhe-Durlach Connection anchor for multi-layer concrete slabs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DK3540142T3 (en) 2021-05-25
LT3540142T (en) 2021-05-25
PL3540142T3 (en) 2021-10-18
EP3540142A1 (en) 2019-09-18
FI12036U1 (en) 2018-04-13

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