EP3336269B1 - Élément de construction destiné a l'isolation thermique - Google Patents

Élément de construction destiné a l'isolation thermique Download PDF

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Publication number
EP3336269B1
EP3336269B1 EP17206599.7A EP17206599A EP3336269B1 EP 3336269 B1 EP3336269 B1 EP 3336269B1 EP 17206599 A EP17206599 A EP 17206599A EP 3336269 B1 EP3336269 B1 EP 3336269B1
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EP
European Patent Office
Prior art keywords
thermal insulation
anchoring sleeve
anchoring
structural element
structural
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EP17206599.7A
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German (de)
English (en)
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EP3336269A1 (fr
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Schoeck Bauteile GmbH
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Schoeck Bauteile GmbH
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Priority to PL17206599T priority Critical patent/PL3336269T3/pl
Publication of EP3336269A1 publication Critical patent/EP3336269A1/fr
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/07—Reinforcing elements of material other than metal, e.g. of glass, of plastics, or not exclusively made of metal
    • E04C5/073—Discrete reinforcing elements, e.g. fibres
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance

Definitions

  • the present invention relates to a component for thermal insulation according to the preamble of claim 1.
  • components for thermal insulation are known in the prior art, which are primarily used to support building parts projecting from buildings, such as balcony slabs, through a thermally insulated component joint.
  • the integrated reinforcement elements ensure the necessary transmission of force and torque, while the insulating body is responsible for complaining about the two components, insulated from each other while leaving a joint.
  • the components for thermal insulation must be used in different installation situations, with the tensile reinforcement elements in particular, which in the installed state of the component run essentially horizontally and transversely to the essentially horizontal longitudinal extent of the insulating body and each protrude in the horizontal direction from the insulating body and thereby protrude can be connected to at least one of the two components made of concrete and have to contend with space problems.
  • the tension reinforcement elements must be arranged so that they provide the required anchoring in the adjacent components despite the space problems.
  • the tensile reinforcement elements have, for example, a curve which is bent with respect to the horizontal, as in FIG DE-A 197 36 501 or the EP-A 0 947 640 or a graded course like in the EP-A 1 600 569 .
  • the tensile reinforcement elements can be at least suitable Adjust constellations in their orientation to the shape of the adjacent component; For example, a downward curve of the tensile reinforcement elements can result in the tensile reinforcement elements extending into a course of the associated component that is stepped relative to the component for thermal insulation.
  • tensile reinforcement elements have complex bending shapes, for example are loop-shaped, in order to ensure the tensile force by means of a so-called overlap joint.
  • This approach arises in particular from the use of tensile reinforcement elements in connection with brackets for supporting facades, the brackets having a very limited length in the axial direction and thus would not offer enough space for anchoring in the console to run in a straight, horizontal direction.
  • rod-shaped tension reinforcement elements consisting of a head bolt tension reinforcement elements which, in addition to a rod-shaped central section crossing the joint between the two components, have two terminal conical widenings which ensure a positive fit between the tension reinforcement element and the component.
  • bent or stepped tension reinforcement elements do not offer any particular advantage in terms of reducing the anchoring or installation length, but can at best ensure that the tension reinforcement elements can extend into the areas of the adjacent components with different height levels, the above-mentioned studs could be used achieve such a reduction in the anchoring or installation length without problems.
  • the on-site reinforcement would have to be placed exactly next to the headed bolts in order to be able to absorb or derive splitting tensile forces in the area of the conical widenings of the headed bolts.
  • the great difficulty here is that the on-site reinforcement must already be positioned and partially already concreted in if the exact position of the headed bolts is not yet known. This approach therefore has a major disadvantage in practice.
  • the object of the present invention to provide a component for thermal insulation with the features of the preamble of claim 1 to further develop and enable their installation even in adjacent components that have a reduced length in the horizontal direction transverse to the longitudinal extension of the insulating body and thus offer less space for anchoring the tensile reinforcement elements, as is the case, for example, with adjacent components with mutual level differences.
  • the anchoring element consists of at least one anchoring sleeve made of concrete building material and has an outward, in particular radially projecting profile provided on the radial outside of the anchoring sleeve.
  • the anchoring sleeve surrounds the associated tensile reinforcement element on its radial outside and also has an outwardly protruding profile there, an outer circumferential surface of the anchoring sleeve and the profiling automatically results, the area of which is significantly larger than the lateral surface of the tensile reinforcement element. It is not difficult to see that such an enlargement of the lateral surface leads to a correspondingly significant improvement in the anchoring of the anchoring element in the adjacent component. This can be used in a clever way to reduce the length of the tensile reinforcement element by which it protrudes into the adjacent component.
  • the anchoring length can be reduced to such a degree that, finally, one no longer has to rely on bent, stepped or loop-shaped courses of the tensile reinforcement elements in order to achieve the desired degree of anchoring of the tensile reinforcement elements.
  • the tensile reinforcement element combined with the anchoring element requires significantly less space in the axial direction and can also be used with a suitable dimensioning if the adjacent one Component in the axial direction transverse to the longitudinal extent of the insulating body has a significantly reduced length.
  • components for thermal insulation can be used without any problems in installation situations with level differences between the adjacent components or in the case of adjacent components with a height offset, since the tension reinforcement elements only protrude into the adjacent components by an extremely reduced amount, and preferably only as far as possible corresponds to the thickness of the building wall.
  • the adjacent component is then arranged at a higher or lower level than the installation height of the component for thermal insulation is no longer relevant in the case of such an advantageous component for thermal insulation with anchoring sleeve according to the invention, since the anchoring of the tensile reinforcement elements is already in the area adjacent to the joint Area of the component, for example in a console-like angling of the component.
  • the anchoring sleeve consists of a hardening and / or setting concrete material, in particular with a reduced thermal conductivity compared to in-situ concrete (such as in particular C45), and in particular of a cement-containing and / or fiber-reinforced concrete building material such as high-strength or ultra-high-strength concrete, such as high-strength or ultra -high-strength mortar, such as a concrete-synthetic resin mixture and / or a concrete-reactive resin mixture.
  • a concrete building material which in particular has a strength that corresponds to the concrete strength class C55 or higher to in particular C180, is able to absorb the stress increase resulting from the increase in cross section without damage.
  • the concrete building material with its reduced thermal conductivity compared to in-situ concrete, forms an insulation layer around the associated tensile reinforcement element, which further improves the thermal insulation property of the structural element for thermal insulation.
  • the tensile reinforcement element and the anchoring sleeve are fixed to one another in a form-fitting, force-fitting and / or material-locking manner.
  • the fixing can take place, for example, by wrapping and / or casting the reinforcement element with the material of the anchoring sleeve, that is to say in particular the concrete building material.
  • the profiling serves in particular to transmit shear stresses that can occur between the outer surface of the anchoring element and the component surrounding this anchoring element. In addition, they can also be used to absorb the split tensile forces that occur in the event of a load.
  • the profiling expediently consists of ribs which extend at least over part of the circumference. These ribs can advantageously have a rib height, measured from the nominal diameter in the radial direction, of at least 0.5 mm and preferably in the order of half the outer radius of the anchoring sleeve, i.e.
  • a rib height of the order of twice the diameter of the tensile reinforcement element is also particularly suitable or advantageous.
  • the profiling and / or ribs can consist, for example, of a rod or wire material which partly dips into the clear outer diameter of the anchoring sleeve and partly with respect to the clear outer diameter the anchoring sleeve protrudes in the radial direction.
  • This rod or wire material can, for example, form strapping from a steel wire, which is arranged in a helical manner along the outer surface of the anchoring sleeve.
  • the profiling and / or the ribs can have a substantially sawtooth-shaped or fir-tree-shaped course with respect to the longitudinal section, in particular with end faces that run essentially in the radial direction and face the joint between the two components and are inclined to the radial direction and the joint between the two Flanks facing away from components.
  • the profiling extends only over an axial partial area of the anchoring sleeve and / or that the anchoring sleeve is essentially smooth-walled on its radial outside in the edge area near the joint. This makes it possible to ensure that the profile starts from the joint behind the component or connecting reinforcement, whereas the area of the anchoring sleeve between the joint and the component reinforcement remains smooth-walled and thus comparatively free of stress and is protected against material fatigue or excessive splitting forces , which would otherwise lead to destruction, in particular chipping or breaking off of this edge region near the joint.
  • the anchoring sleeve expediently has a substantially cylindrical outer surface with a circular cross section in particular.
  • it can, for example, have a flattened area on its upper side, which is exempted from the cylindrical anchoring sleeve in the form of a segment of a circle.
  • This flattened area can be used, for example, to increase the degree of concrete coverage of the component above the anchoring sleeve.
  • the outside diameter of the anchoring sleeve be at least 1.5 times and in particular at least twice and / or a maximum of 5 times and in particular at most 3 times as large as the outside diameter of the tensile reinforcement element.
  • the anchoring element expediently extends only in the region of the adjacent component and does not protrude into the joint between the two adjacent components. After all, it is precisely the area of the adjacent component in which the anchoring element can and should fulfill its function. In addition, it is entirely possible for the anchoring sleeve to protrude from the one adjacent component into the insulating body and possibly even to cross it and extend into the second adjacent component.
  • the anchoring element cannot fulfill the intended function of improving the anchoring at all, and even the insulating effect does not appear or is hardly advantageous compared to the insulating material, so that it also does not appear to make sense in this regard to insert the anchoring sleeve into the adjacent component Let the joint protrude into it.
  • Figure 4 shows a component for thermal insulation 1 with a cuboid insulating body 2, which is intended to be arranged in a component joint left between two concrete components (which are not shown here, but whose position is only indicated by the reference numerals A, B) and these two Concrete components A, B spaced apart from each other in a thermally insulated manner.
  • the insulating body 2 is composed of several parts in order to enable the installation of reinforcement elements in the form of tension rods 3, in the form of transverse force rods 4 and in the form of pressure elements 5.
  • the arrangement of the reinforcement elements takes place in the manner known and customary in the prior art, namely by arranging the tensile reinforcement elements 3 in the upper region of the insulating body 2, which extend in the installed state in the horizontal direction and for transmitting tensile force between the two to the component Components A, B are used for thermal insulation and are anchored in these components.
  • the pressure elements 5 are arranged, likewise with a horizontal direction of extension, but they do not protrude from the insulating body 2.
  • shear force rods 4 which run in the region of the insulating body 2 at an angle to the horizontal and which correspond to the loads to be borne by the reinforcement elements of the component for thermal insulation from the tensile zone on one side of the insulating body obliquely downward into the pressure zone on the other side of the insulating body run in order to be angled vertically upwards in the direction of the tensile zones and then, after a further angling, parallel to the tensile reinforcement elements.
  • the tensile reinforcement elements 3 of which one, namely a tension rod 3 in Figure 4 sees especially on the left side of the insulating body 2, while this tension rod in the area of the insulating body 2 and on the right side is only schematically indicated with its outer contours.
  • the pull rod 3 has on its radial outside anchoring element 6 surrounding it. This comprises on the one hand an anchoring sleeve 6a and on the other hand a profiling 6b which projects radially outwards and is provided on the radial outside of the anchoring sleeve 6a.
  • the profiling 6b is made of wire rings which, with their half cross-section, dip into the anchoring sleeve 6a with their inside , while they protrude with their other half cross-section, namely with their radial outer side, against the anchoring sleeve 6a and thus form a positive connection with the concrete of component B.
  • the anchoring sleeve 6a also forms a positive connection with the pull rod 3.
  • the anchoring sleeve 6a is flush with the end face of the component B facing the insulating body 2 and, starting from there, extends into the component B over a comparatively short axial length L (measured perpendicular to the longitudinal extension of the insulating body 2 in the horizontal direction) ,
  • the tension rod 3 also has the same axial length L in the area of the component B. If the tension rod 3 would extend into the component B without the anchoring element 6 consisting of anchoring sleeve 6a and profiling 6b, it would have to have a significantly greater axial length L, which can often lead to difficult installation problems.
  • an anchoring element for an inventive component for thermal insulation is in the Figures 1 to 3 shown schematically.
  • an adjacent component B there is only one insulating body 2, an adjacent component B, a tensile reinforcement element in the form of a tension rod 3 and a anchoring element 16 ( Figure 1 ), 26 ( Figure 2 ) or 36 ( Figure 3 ).
  • the anchoring element 16 consists of an anchoring sleeve 16a with integrated profiling 16b on its radial outside, ie the profiling here does not consist of a separate component, but is introduced in the form of a sawtooth-shaped rib in the outer surface of the anchoring sleeve 16a.
  • the profiling 16b does not begin directly at the front edge of the component B adjacent to the insulating body 2; rather, the anchoring sleeve 16a initially has a smooth-walled jacket area, so that the profiling that enters into a positive connection with the concrete of the adjacent component B only begins after approximately 30% of the axial length L.
  • the anchoring sleeve 16a has at its end facing the insulating body 2 on the radial inside a recess or a recess 16c, which ensures that the tension rod 3 does not abruptly increase its stiffness when it emerges from the anchoring sleeve and when it enters the insulating body experienced radial anchoring, which would lead to material fatigue in this transition area. Due to the recess 16c, the exit area from the sleeve 16a is shifted somewhat in the axial direction into the component B, so that a rather continuous transition of stiffness is provided in the area from the sleeve to the insulating body.
  • the embodiment according to Figure 2 differs in that the anchoring element 26 has, in addition to an anchoring sleeve 26a, a profile 26b on its radial outside, which consists of a helical circumferential strapping made of wire material.
  • the strapping 26b is partially embedded in the anchoring sleeve 26a and protrudes with a second part in relation to the anchoring sleeve or its clear outer diameter in the radial direction to enter into a positive connection with the concrete of component B.
  • an anchoring element 36 which has an anchoring sleeve 36a, which is very similar to the anchoring sleeve 16a Figure 1 with the only difference that the anchoring sleeve 36a has on its upper side a circular segment-shaped flattening 36d, through which more space for the concrete material of component B can remain above the anchoring sleeve, that is to say there the concrete cover can be higher than would be the case with a conventional cylindrical outer shape of the anchoring sleeve.
  • a loop-shaped component reinforcement 8 is shown, which consists of a reinforcement bar bent in a rectangular shape and arranged essentially in a vertical plane. It can be seen here that the region of the anchoring sleeve 36a provided with the profiling 36b only extends in the axial direction behind the area in which the leg of the component reinforcement 8 running in the vertical direction overlaps the anchoring sleeve 36a.
  • the present invention offers the advantage of providing a component for thermal insulation with tensile reinforcement elements that require a significantly reduced anchoring length and can therefore be used above all if there is little space in the adjacent component in the horizontal direction for anchoring the tensile reinforcement element ,

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Building Environments (AREA)

Claims (13)

  1. Élément de construction pour l'isolation thermique entre deux parties d'une construction, en particulier entre un bâtiment (B) et une partie extérieure (A) en saillie,
    constitué d'un corps isolant (2) à disposer entre les deux parties de construction et d'éléments d'armature sous la forme au moins d'éléments d'armature de traction (3) qui, dans l'état installé de l'élément de construction (1), s'étendent à travers le corps isolant pour l'essentiel horizontalement et transversalement à l'étendue longitudinale pour l'essentiel horizontale de ce corps isolant, et qui dépassent respectivement en direction horizontale par rapport au corps isolant et peuvent ce faisant être raccordés à au moins une (B) des deux parties de construction constituées de béton, sachant que les éléments d'armature de traction (3) présentent un élément d'ancrage (6, 16, 26, 36) qui les entoure dans la région de la partie de construction au moins unique (B) sur leur côté extérieur radial,
    caractérisé en ce que l'élément d'ancrage (6, 16, 26, 36) est au moins constitué d'un manchon d'ancrage (6a, 16a, 26a, 36a) en matériau de construction à base de béton, et en ce que l'élément d'ancrage (6, 16, 26, 36) présente un profilage (6b, 16b, 26b, 36b) prévu sur le côté extérieur radial du manchon d'ancrage et dépassant vers l'extérieur, en particulier radialement.
  2. Élément de construction pour l'isolation thermique selon la revendication 1, caractérisé en ce que le manchon d'ancrage (6a, 16a, 26a, 36a) est constitué d'un matériau de construction à base de béton durcissant et/ou à prise, en particulier avec une conductibilité thermique réduite par rapport à du béton coulé sur place, et en particulier d'un matériau de construction à base de béton contenant du ciment et/ou armé de fibres, comme du béton à haute résistance ou à ultra-haute résistance, comme du mortier à haute résistance ou à ultra-haute résistance, comme un mélange de béton et de résine synthétique et/ou comme un mélange de béton et de résine synthétique réactive.
  3. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que l'élément d'armature de traction (3) et le manchon d'ancrage (6a, 16a, 26a, 36a) sont fixés l'un à l'autre par engagement positif, à force et/ou par liaison de matière.
  4. Élément de construction pour l'isolation thermique selon au moins la revendication 3, caractérisé en ce que la fixation du manchon d'ancrage (6a, 16a, 26a, 36a) sur l'élément d'armature de traction (3) s'effectue en enroulant et/ou en coulant le matériau du manchon d'ancrage (6a, 16a, 26a, 36a) autour de l'élément d'armature de traction (3).
  5. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le profilage (16b, 36b) est constitué de nervures s'étendant au moins sur une partie du pourtour du manchon d'ancrage (16a, 36a).
  6. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le profilage (6b, 16b, 26b, 36b) ne s'étende que sur une région axiale partielle du manchon d'ancrage (6a, 16a, 26a, 36a), et/ou en ce que le manchon d'ancrage (6a, 16a, 26a, 36a) est réalisé sensiblement à la paroi lisse sur son côté extérieur radial dans la région de bord proche du joint.
  7. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le manchon d'ancrage (6a, 16a, 26a, 36a) présente une surface d'enveloppe sensiblement cylindrique avec en particulier une section circulaire.
  8. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le diamètre extérieur du manchon d'ancrage (6a, 16a, 26a, 36a) est égal à au moins 1,5 fois et en particulier au moins 2 fois et/ou au maximum 5 fois et en particulier au plus 3 fois le diamètre extérieur de l'élément d'armature de traction (3).
  9. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le manchon d'ancrage (6a, 16a, 26a, 36a) ne s'étend que dans la région de la partie de construction attenante (B) et non dans le joint entre les deux parties de construction attenantes (A, B).
  10. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le profilage (6b, 26b) est constitué d'un matériau en barre ou en fil métallique, qui pour partie s'enfonce dans le diamètre extérieur libre du manchon d'ancrage (6a, 26a) et pour partie dépasse en direction radiale par rapport au diamètre extérieur libre du manchon d'ancrage.
  11. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que le profilage (16b, 36b) présente une allure sensiblement en dents de scie relativement à la section longitudinale, en particulier avec des faces frontales s'étendant sensiblement en direction radiale et tournées vers le joint entre les deux parties de construction, et des flancs s'étendant en inclinaison par rapport à la direction radiale et opposés au joint entre les deux parties de construction (A, B).
  12. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que l'élément de construction présente un élément d'armature de raccordement (8), qui s'étend en particulier dans un plan vertical et est réalisé en forme de boucle de forme rectangulaire, et en ce que l'élément d'armature de raccordement est disposé au voisinage du manchon d'ancrage (36a).
  13. Élément de construction pour l'isolation thermique selon au moins la revendication 1, caractérisé en ce que l'élément de construction (1) pour l'isolation thermique présente, en plus des éléments d'armature de traction (3), des éléments de pression (5) et/ou des éléments de force transversale (4).
EP17206599.7A 2016-12-19 2017-12-12 Élément de construction destiné a l'isolation thermique Active EP3336269B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17206599T PL3336269T3 (pl) 2016-12-19 2017-12-12 Element budowlany do izolacji cieplnej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016124736.7A DE102016124736A1 (de) 2016-12-19 2016-12-19 Bauelement zur Wärmedämmung

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EP3336269A1 EP3336269A1 (fr) 2018-06-20
EP3336269B1 true EP3336269B1 (fr) 2020-02-05

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US (1) US10640967B2 (fr)
EP (1) EP3336269B1 (fr)
CA (1) CA2987995A1 (fr)
DE (1) DE102016124736A1 (fr)
DK (1) DK3336269T3 (fr)
PL (1) PL3336269T3 (fr)

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DE102016124736A1 (de) 2018-06-21
DK3336269T3 (da) 2020-04-06
CA2987995A1 (fr) 2018-06-19
EP3336269A1 (fr) 2018-06-20
PL3336269T3 (pl) 2020-07-27
US10640967B2 (en) 2020-05-05
US20180171619A1 (en) 2018-06-21

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