EP3231952B1 - Composant à isolation thermique - Google Patents

Composant à isolation thermique Download PDF

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Publication number
EP3231952B1
EP3231952B1 EP17166057.4A EP17166057A EP3231952B1 EP 3231952 B1 EP3231952 B1 EP 3231952B1 EP 17166057 A EP17166057 A EP 17166057A EP 3231952 B1 EP3231952 B1 EP 3231952B1
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EP
European Patent Office
Prior art keywords
element according
construction element
insulating body
steel
steel profile
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
EP17166057.4A
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German (de)
English (en)
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EP3231952A1 (fr
Inventor
Peter Schweizer
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.)
M-Plus Bauprodukte AG
Original Assignee
M-Plus Bauprodukte 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 CH00499/16A external-priority patent/CH712368A1/de
Priority claimed from CH00049/17A external-priority patent/CH713371A2/de
Application filed by M-Plus Bauprodukte AG filed Critical M-Plus Bauprodukte AG
Publication of EP3231952A1 publication Critical patent/EP3231952A1/fr
Application granted granted Critical
Publication of EP3231952B1 publication Critical patent/EP3231952B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/003—Balconies; Decks
    • E04B1/0038—Anchoring devices specially adapted therefor with means for preventing cold bridging

Definitions

  • the invention relates to a thermally insulating component for the force-transmitting connection of a cantilever plate to a building ceiling or wall according to the preamble of claim 1.
  • Thermally insulating components are known from the prior art, which produce a force-transmitting connection of a component to a structure, in particular a cantilever plate, to a building ceiling or a building wall.
  • a structure in particular a cantilever plate
  • Such components have a complicated structure and are accordingly complex to manufacture.
  • the installation of reinforcements to absorb shear forces and moment forces in the component is complicated.
  • Such components are also not very flexible in their length adjustment.
  • connection device has at least one connecting element and an insulating body.
  • Each connecting element that penetrates the insulating body consists of a reinforcement profile, two outer upper chords, two inner upper chords, two outer lower chords and two inner lower chords.
  • the straps are rod-shaped and their surface can be smooth, profiled or ribbed.
  • the strength of the reinforcement profile must be chosen as small as possible in order to minimize the heat transfer from the cantilever plate to the wall or ceiling construction. On the other hand, the strength of the reinforcement profile must be chosen large enough to be able to absorb the forces that occur.
  • a cantilever panel connector is disclosed.
  • An insulating part is penetrated by box-shaped tensile force transmission members.
  • the parallel tensile force transmission members are connected to one another by means of reinforcement bars running transversely to the same.
  • a box-shaped pressure force transmission element is used in each insulation part, which has several cells, in which insulation material is also arranged.
  • the problem is solved in a thermally insulating component in that the number of pull-out locks corresponds to at least twice the number of steel profiles. Because the steel profile is straight in the longitudinal direction and has no elevations, there is a risk that it will be pulled out of the cantilever plate or the building elements by tensile loads. This danger of undressing is reliably avoided by providing pull-out locks.
  • the pull-out safety device has at least one protrusion in the vertical direction, for example a pin or a hook, which are cast into the concrete and therefore represent a high resistance in the pull-out direction.
  • the pull-out protection is in each case an end plate arranged on the end faces of the steel profile, which protrudes beyond the cross section of the steel profile. Load tests have surprisingly shown that the end plates alone prevent the steel profiles from being pulled out of the cantilever plate without further pull-out protection.
  • the end plates also serve as a seal for the open ends of the steel profiles and therefore fulfill a dual purpose. Additional pull-out protections can, but do not have to be provided on the steel profiles.
  • the invention is preferably characterized in that the pull-out safety device is a U-shaped bracket, the clear width of which corresponds to the width of the steel profile.
  • the advantage of a U-bracket is that it can be easily manufactured from a steel rod and can protrude the steel profile on opposite sides. By dimensioning the clear width of the U-bracket, both legs can be attached to the steel profile. It has proven to be useful if the legs of the U-bracket protrude beyond the steel profile. The bending of the U-bracket also inevitably projects above the steel profile. The protrusion on both sides of the U-bracket ensures reliable pull-out protection of the steel profile.
  • the steel profile could only be pulled out of the cantilever slab or the building ceiling if concrete was destroyed and broken out.
  • At least two pull-out locks are expediently fastened one behind the other on each side of the steel profile, as a result of which there is an outer and an inner pull-out lock on the steel profile.
  • the provision of a pair of pull-out safeguards increases their effectiveness.
  • a connecting rod which connects the pair of U-brackets at the bends and the steel profiles, a force profile is formed which is extremely stable and fulfills all the requirements of a connection element.
  • the leg ends of the outer U-bracket serve as a holder for a drawbar that can be hung into the steel profile.
  • the invention is also preferably characterized in that the steel profile projects beyond the insulating body on both sides by at most 20 cm and preferably by at most 16 cm. Since the insulating body usually has a thickness of about 8 cm, it follows that the steel profile has a length between 30 and 70 cm and preferably between 40 and 60 cm. To prevent the formation of cold bridges, the steel profile must be made of poorly heat-conducting steel. These are high-alloy stainless steels, which have a high material price compared to structural steels. Therefore, the aim should be to keep the steel profiles as short as possible.
  • the steel profile is a square tube.
  • the square tube is characterized by a high degree of transverse stability. Due to the closed cavity inside the pipe, it can be filled with insulation material and extension profiles can also be inserted into it. By filling with insulation material, the insulating properties of the component can be improved.
  • the end plate rests on the outer U-bracket.
  • the end plate then also serves as a reinforcing element for the protruding legs of the outer U-bracket. If very high tensile forces act on the drawbar attached to the steel profile, their protruding leg ends are reinforced by the end plate against which they rest. Bending of the leg ends is therefore reliably prevented by the face plate. Since the end plate extends beyond the steel profile along the circumference, it serves, as already described above, in particular as a pull-out protection.
  • the end plate preferably has a square shape, but can also have other shapes, provided that the projecting leg ends are reinforced by the end plate.
  • an offset element is attached to the end faces of the steel profile.
  • the provision of an offset element makes it possible for a cantilever plate to be connected continuously to a building ceiling through the component, even if the building ceiling is higher than the insulating body of the component.
  • the fact that the offset element can be inserted into the square tube means that a component with an offset option is very easy to produce. In contrast to a circular cross section, the offset element cannot be placed in the square tube twist. It is also conceivable to weld the offset element to the steel profile.
  • the offset element is expediently an angled square tube which essentially has a Z-shaped shape.
  • the external dimensions of the offset element are adapted to the internal dimensions of the square tube, which means that the offset element can be inserted into the square tube.
  • the connection can be made, for example, by welding.
  • the length of the vertical part of the offset element corresponds to the offset so that a continuous connection of a cantilever plate is made possible.
  • the plurality of steel profiles in the upper half of the insulating body penetrate the latter and a plurality of pressure elements penetrate the insulating body in the lower half of the insulating body, the pressure elements each comprising a first part and a second part, which parts are plugged into each other.
  • the pressure element is therefore particularly easy to integrate in the insulating body, even if it has ends with an enlarged cross section. Pressure elements must then be integrated into the insulating body if the cantilever plate is not supported by external supports and therefore pressure forces have to be transmitted from the cantilever plate to the building through the component.
  • the first and second parts each comprise a first and a second pipe piece, the end faces of the pipe pieces facing away from one another being connected with covers, the cross section of which is expanded compared to the cross section of the pipe pieces.
  • the covers with enlarged pressure receiving areas enable an improved and complete transfer of the pressure force of the cantilever plate to the building or the building ceiling.
  • the two-part nature of the pressure element enables the pressure element to be accommodated in the insulating body, regardless of the extent to which the covers protrude beyond the pipe sections.
  • the pressure element is preferably made of stainless steel.
  • the pipe sections can have a circular cross section or a polygonal cross section, in particular a square cross section.
  • the cross section of the first and second pipe sections are dimensioned such that the pipe sections can be plugged into one another, the distance between the covers in the assembled state of the pressure element essentially corresponding to the thickness of the insulating body.
  • the pressure element is filled with an insulating material, which is made possible by its two-part design, the component is also well insulated in the area of the pressure elements.
  • a leaf spring is advantageously attached to the ends of the steel profile and a tension bracket can be hung between the outer pull-out safety device and the leaf spring.
  • the leaf spring makes it possible that the tension bow does not have to be attached to the component during the manufacture of the component, but can only be attached to it afterwards. This makes it easier to transport and install the component.
  • the square tube and the drawbar can be made of different materials. It is preferred if the steel profile is made from a high-alloy stainless steel and the tension bracket from an unalloyed or low-alloy steel.
  • foam inserts are arranged on the vertical sides of the square tube. This can dampen horizontal displacements of the cantilever plate. This is particularly important with regard to improved earthquake safety of the building in which the component is integrated.
  • a thermally insulating component for the force-transmitting connection of a cantilever plate to a building ceiling or building wall.
  • the component is designated as a whole by reference number 11.
  • the component serves as a connection element of the cantilever plate to a building.
  • the tensile, compressive and transverse forces generated by the cantilever plate are introduced into the building by the component 11.
  • the component 11 has a heat-insulating effect on the cantilever plate.
  • the component 11 comprises an insulating body 13, which preferably has a cuboid shape and can be made of a heat-insulating material, such as a foamed plastic, glass wool or rock wool.
  • the insulating body 13 is penetrated by a plurality of steel profiles. Because steel profiles are used as reinforcement elements instead of bars, tensile and transverse forces can be absorbed by the steel profiles without additional reinforcement elements being necessary. The steel profiles can therefore also be called force profiles. Steel profiles with a rectangular or square cross-section have proven to be particularly stable. In the two embodiments of the component 11 shown, the steel profiles are square tubes 15. Of course, polygonal or round tubes other than steel profiles are also conceivable. Since steel profiles usually have no projections or elevations along their longitudinal extent, they can be pulled out of the concrete elements adjacent to the structural element by tensile loading. To prevent this, 15 pull-out safeguards in the form of U-brackets 17 are permanently attached to the square tubes, in particular welded on.
  • An outer U-bracket 17a and an inner U-bracket 17b are preferably attached to each side of the square tube 15. This increases the pull-out security of the square tubes 15 from the concrete elements.
  • the U-bracket 17 have two legs, the inside width of which corresponds to the width of the square tubes 15. This allows both legs of the U-bracket 17 to be attached to the sides of the square tubes 15.
  • the legs of the U-bracket 17 protrude beyond the square tubes. This ensures a pull-out resistance above and below the square tubes 15.
  • Each outer and inner U-bracket 17a, 17b of a pair of brackets are connected to a connecting rod 19, which increases the stability of the pull-out protection and prevents cracking in the concrete, since the outer and inner U-bracket 17a, 17b do not move relative to one another can.
  • the component 11 is manufactured in various required lengths between 1 and 4 meters. Depending on the loads to be expected in the building, between 2 and 6 square tubes 15 are inserted into the insulating body 13 per running meter of component 11. So that the component 11, in particular with longer lengths, during the Transport and installation is not damaged by bending, the individual square tubes are connected to a longitudinal rod 21 on both sides of the insulating body 13.
  • the longitudinal bar 21 is welded to the square tubes 15 and / or to the inner U-brackets 17b.
  • the upper side of the insulating body 13 can be covered with a plastic rail as weather protection.
  • a component 11 with a length of more than one meter is produced by connecting a plurality of insulating bodies 13 each having a length of one meter, in particular by gluing them, and shortening one of the insulating bodies 13 to the desired dimension.
  • the square pipes 15 are filled with an insulating material 23 and closed with a plug 25.
  • the square tubes 15 have a length of only about 40 cm, since at the ends of the square tubes 15 a pull bracket 27 can be attached.
  • This two-part construction has several advantages.
  • the tensile reinforcement does not have to be made entirely of expensive, poorly heat-conducting stainless steel, but only the square tubes 15.
  • the tension brackets 27 can be made of a low-alloy or unalloyed structural steel, since the thermal conductivity plays no role in the concrete elements.
  • the transport and installation of the component is facilitated if the pulling brackets 27 are not part of the component 11 from the beginning.
  • the leaf spring 29 is preferably Z-shaped and attached to the top of the square tube 15.
  • a second embodiment with an offset element 31 is shown.
  • the offset element 31 is used to connect a cantilever plate to a building, the cantilever plate having a height which is higher than the height of the insulating body 13.
  • the raised cantilever plate can then, for example, be continuously aligned with the top of a building ceiling.
  • the offset element 31 comprises a first and a second horizontal part 33a, 33b and a vertical part 35 which connects the two horizontal parts 33a, 33b.
  • the offset element 31 is therefore essentially Z-shaped.
  • the offset element 31 consists of an angled square tube, the outer dimensions of the second horizontal part 33b being dimensioned such that it can be inserted into the square tube 15.
  • the square tube 15 preferably closes in the present embodiment on the side on which the offset element 31 is inserted, flush with the insulating body 13. As a result, the vertical part 35 can bear against the insulating body 13 and the square tube 15.
  • the first horizontal part 33a serves as a support for the U-brackets 17a, 17b and the leaf spring 29.
  • the displacement element 31 thus displaces the force profile upwards on one side.
  • the offset height is preferably between 80 and 140 mm.
  • pressure elements 37 must be arranged in the insulating body 13 below the force profiles.
  • the pressure elements 37 absorb the pressure forces which the cantilever plate exerts on the insulating body and pass the pressure forces on to the building ceiling or the building wall.
  • the pressure elements 37 can be arranged directly below the square tubes 15 or penetrate the insulating body 13 offset thereto.
  • the pressure element 37 is preferably designed in two parts and comprises a first part 39 and a second part 41.
  • the first and the second part are preferably pieces of pipe, for example with a square or round cross section, the outer dimensions of which are dimensioned such that the first and second part 39 , 41 put one into the other.
  • the opposite end faces of the pipe sections are covered with covers 43.
  • the covers 43 project beyond the cross section of the pipe sections in order to provide an enlarged receiving area for the pressure loads.
  • the overlaps of the covers 43 also act as stop faces on the insulating body 13.
  • the first part 39 preferably has a length which essentially corresponds to the thickness of the insulating body 13.
  • the pressure element 37 can be easily arranged in the insulating body, since the first and second parts 39, 41 can be inserted into the insulating body from two sides. In addition, the interior of the pressure element 37 can be filled with an insulating material due to the open construction.
  • the plug 25 is replaced by an end plate 45.
  • the end plates 45 are welded to the ends of the square tube 15 and protrude the square tube 15 on all sides by about 2 cm.
  • the outer U-bracket 17a lies against the end plate 45 and is flush with the protruding legs of the U-bracket 17a, as is particularly the case in FIG Figure 9 is shown.
  • the end plate 45 reinforces the protruding legs, which prevents bending of the legs, even if a very large tensile force acts on the protrusion of the legs due to the attached drawbar 27.
  • the circumferential protrusion of the end plate 45 on the square tube 15 further secures the force profile from being pulled out.
  • two longitudinal bars 21 can be arranged above and below the square tube 15 on each side of the component 11.
  • the longitudinal bars 21 can also be arranged in front of or behind the inner U-bracket 17b.
  • the longitudinal bars can be welded to the inner U-bracket 17b and / or to the sides of the square tube 15.
  • the longitudinal bars 21 alone cannot provide sufficient pull-out protection since the protrusion from the square tubes 15 is too small and the longitudinal bars 21 are naturally round in cross section. However, you can further improve the pull-out security of the other pull-out safeguards 17a, 17b, 45.
  • FIG. 10 to 12 Another particularly preferred embodiment of the component 11 is shown. Load tests have shown that the U-brackets 17a, 17b are not absolutely necessary for reliable pull-out protection if the end plates 45 are arranged on the end faces of the square tubes 15. The end plates preferably project beyond all four sides of the square tube 15. This results in a secure hold of the cantilever plate on the square tubes 15, even without the U-brackets 17a, 17b being present. A circumferential protrusion of the end plate 45 from the square tube 15 of 1 to 3 cm is preferred.
  • Component 11 is shown without pressure element 37. This embodiment is therefore intended for supported cantilever elements or cantilever plates. In this embodiment, the Figures 10 to 12 however, pressure elements 37 may also be provided.
  • plastic rails 47 acting as weather protection during the transport of the component 11 are also shown.
  • the plastic rails 47 are attached to the top and bottom of the insulating body 13. Before the component 11 is installed, the plastic rail 47 is removed.
  • Foam inserts 49 can be attached to the vertical sides of the insulating bodies 13, as is the case with the Figure 10 shows.
  • the foam inserts 49 serve to absorb or dampen horizontal displacements of the cantilever plate.

Claims (14)

  1. Elément de construction isolant thermiquement (11) pour la connexion transmettant des forces d'une plaque en porte-à-faux à un plafond de bâtiment ou un mur de bâtiment avec
    - un corps isolant (13) à placer entre la plaque en porte-à-faux et le plafond de bâtiment ou le mur de bâtiment,
    - une multitude de profilés en acier (15) qui traversent le corps isolant (13) et qui servent à absorber des forces de traction et des forces transversales et
    - des sécurités antiretrait individuelles (17) qui sont fixées de manière inamovible des deux côtés du corps isolant (13) sur la multitude de profilés en acier (15) et qui sont saillie du profilé (15) à au moins un endroit, cependant que le nombre de sécurités antiretrait (17) correspond au moins au double du nombre des profilés en acier (15),
    caractérisé en ce que la sécurité antiretrait est une plaque frontale (45), placée sur chacun des côtés frontaux du profilé en acier (15), qui fait saillie de la section transversale du profilé en acier (15).
  2. Elément de construction selon la revendication 1, caractérisé en ce que la sécurité antiretrait est un étrier en U (17) dont la largeur intérieure correspond à la largeur du profilé en acier (15).
  3. Elément de construction selon la revendication 2, caractérisé en ce que les montants de l'étrier en U (17) font saillie du profilé en acier (15).
  4. Elément de construction selon l'une des revendications précédentes, caractérisé en ce qu'au moins deux sécurités antiretrait (17) sont fixées l'une derrière l'autre sur chaque côté du profilé en acier (17) si bien qu'il existe une sécurité antiretrait extérieure et intérieure sur le profilé en acier (17).
  5. Elément de construction selon l'une des revendications précédentes, caractérisé en ce que le profilé en acier (15) fait saillie du corps isolant (13) des deux côtés d'au plus 20 cm et de préférence d'au plus 16 cm.
  6. Elément de construction selon l'une des revendications précédentes, caractérisé en ce que le profilé en acier est un tube carré (15).
  7. Elément de construction selon l'une des revendications précédentes, caractérisé en ce que la plaque frontale (45) repose sur l'étrier en U extérieur (17a).
  8. Elément de construction selon l'une des revendications 5 ou 6, caractérisé en ce qu'un élément déporté (31) est fixé sur chacun des côtés frontaux du profilé en acier (15).
  9. Elément de construction selon la revendication 8, caractérisé en ce que l'élément déporté (31) est un tube carré coudé qui possède substantiellement une forme en Z.
  10. Elément de construction selon l'une des revendications précédentes, caractérisé en ce que la multitude de profilés en acier (15) pénètre le corps isolant (13) dans sa moitié supérieure et une multitude d'éléments de pression (37) pénètrent le corps isolant (13) dans la moitié inférieure du corps isolant (13), cependant que les éléments de pression (37) comprennent chacun une première partie (39) et une seconde partie (41), lesquelles parties peuvent être emboîtées l'une dans l'autre.
  11. Elément de construction selon la revendication 10, caractérisé en ce que la première et la seconde partie comprennent chacune une première ou une seconde pièce tubulaire (39), (41), cependant que les côtés frontaux opposés l'un à l'autre des pièces tubulaires sont reliés à des recouvrements (43) dont la section est élargie par rapport à la section des pièces tubulaires.
  12. Elément de construction selon la revendication 11, caractérisé en ce que la section de la première et de la seconde pièce tubulaire (39), (41) est dimensionnée telle que les pièces tubulaires (39), (41) peuvent être emboîtées l'une dans l'autre, cependant que, l'élément de pression (37) étant à l'état assemblé, la distance des recouvrements (43) correspond substantiellement à l'épaisseur du corps isolant (13).
  13. Elément de construction selon l'une des revendications 10 à 12, caractérisé en ce que l'élément de pression (37) est rempli d'un matériau isolant.
  14. Elément de construction selon l'une des revendications à 13, caractérisé en ce que des inserts de mousse sont placés sur les côtés verticaux du tube carré (15)
EP17166057.4A 2016-04-15 2017-04-11 Composant à isolation thermique Active EP3231952B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00499/16A CH712368A1 (de) 2016-04-15 2016-04-15 Thermisch isolierendes Bauelement.
CH00049/17A CH713371A2 (de) 2017-01-16 2017-01-16 Thermisch isolierendes Bauelement für den kraftübertragenden Anschluss einer Kragplatte an eine Gebäudedecke oder eine Gebäudewand.

Publications (2)

Publication Number Publication Date
EP3231952A1 EP3231952A1 (fr) 2017-10-18
EP3231952B1 true EP3231952B1 (fr) 2020-01-01

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Application Number Title Priority Date Filing Date
EP17166057.4A Active EP3231952B1 (fr) 2016-04-15 2017-04-11 Composant à isolation thermique

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EP (1) EP3231952B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4001529A1 (fr) * 2020-11-24 2022-05-25 AVI Alpenländische Veredelungs-Industrie Gesellschaft m.b.H. Dispositif pour éléments préfabriqués en béton pourvu de logement intégré pour un moyen de levage de charge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT408675B (de) * 1999-02-12 2002-02-25 Avi Alpenlaendische Vered Einrichtung zum anschliessen von kragplatten an eine wand- oder deckenkonstruktion
DE10063747A1 (de) * 2000-12-21 2002-06-27 Schoeck Bauteile Gmbh Bauelement zur Wärmedämmung
DE50214264D1 (de) * 2001-12-20 2010-04-15 Sfs Locher Ag Kragplattenanschlusselement und kragplattenanschlussbaugruppe mit einer anzahl solcher kragplattenanschlusselementen

Non-Patent Citations (1)

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

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