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EP3470598A1 - Système de fixation de façade et procédé de montage correspondant - Google Patents

Système de fixation de façade et procédé de montage correspondant Download PDF

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Publication number
EP3470598A1
EP3470598A1 EP17195577.6A EP17195577A EP3470598A1 EP 3470598 A1 EP3470598 A1 EP 3470598A1 EP 17195577 A EP17195577 A EP 17195577A EP 3470598 A1 EP3470598 A1 EP 3470598A1
Authority
EP
European Patent Office
Prior art keywords
facade
holding
retaining
elements
base holder
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Withdrawn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
EP17195577.6A
Other languages
German (de)
English (en)
Inventor
Daniel Gasser
Erich Palm
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.)
SFS Group International AG
Original Assignee
SFS Intec Holding 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
Application filed by SFS Intec Holding AG filed Critical SFS Intec Holding AG
Priority to EP17195577.6A priority Critical patent/EP3470598A1/fr
Publication of EP3470598A1 publication Critical patent/EP3470598A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0885—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements specially adapted for being adhesively fixed to the wall; Fastening means therefor; Fixing by means of plastics materials hardening after application
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0801—Separate fastening elements
    • E04F13/0832—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements
    • E04F13/0853—Separate fastening elements without load-supporting elongated furring elements between wall and covering elements adjustable perpendicular to the wall

Definitions

  • the present invention is concerned with a system for facade mounting, more precisely: a curtain, ventilated facade system, which is compared to the prior art significantly simplified and allows a more favorable as well as more flexible installation. Furthermore, a mounting system is described, which allows a quick and easy attachment of facade elements and its use or method of assembly.
  • a building envelope Today, the building shell is understood as the totality of all components that close a building to the outside. In modern residential and commercial buildings, a building envelope therefore has to fulfill a multitude of functions; as a barrier against weather influences, as thermal as well as acoustic insulation and not least as a design element that gives a building its recognition value. Under a curtain facade is meant a building envelope, which is not like a plaster layer or paint applied directly to the wall, but is fixed at a distance.
  • a curtain wall requires a substructure that specifies the distance between the actual wall (or the load-bearing building structure) and a façade element.
  • a façade element For this purpose, it is known to use for load dissipation punctiform recordings, as well as horizontal or vertical profile rail systems on which the facade elements mounted (ie mounted, screwed, snapped, glued, riveted) can be.
  • Such rail profiles must be installed in the planned distance in front of the wall and then attached to the facade elements.
  • the method of attachment is determined by the weight, size and material of the facade elements.
  • the rail profiles must be mounted on girders that divert the load from the suspended elements to the static load-bearing walls. This requires a considerable effort in the assembly of the substructure.
  • façade elements in all three dimensions should be adjustable during installation, horizontally (x-direction), vertically (y-direction) and in z-direction (distance to the building).
  • the substructure can be aligned so that a flush mounting of the facade elements on the substructure predetermines or allows the intended facade surface.
  • the invention therefore has the task of describing a facade system that works with as few components as possible, easy to assemble and adjust and can be attached invisibly. This is solved by the features of independent claim 1. Furthermore, the invention relates to a method for mounting a facade system and a use of holding elements in a facade system.
  • façade elements are understood in the following components that are to be attached as part of a building envelope to a substructure. These façade elements are usually large, flat and have a square or rectangular basic shape. They are often made of fiber cement, plastics, natural stone or composite materials. They are used for the protection, insulation, shuttering and / or decoration of the building envelope.
  • “Holding elements” is understood to mean mechanical components which can produce a load-bearing connection between a component to be held (for example, facade element) and a receiving surface (structurally viable building surface).
  • the holding elements as a whole thus form the substructure.
  • the holding elements according to the present invention are designed so that they can be invisible after installation of the building envelope, so are hidden for a viewer after completion of the building envelope by the facade elements to be held.
  • a holding element according to the present invention comprises several basic components; At least one base holder 12, an adjusting element 20 and a connecting element or retaining plate 30 are advantageously provided a compensating element 40 which allows a certain angular play of the mounted facade element in the assembled state, e.g. to compensate for temperature fluctuations, wind loads and mounting tolerances resiliently.
  • This holding element 10 is designed for use in a facade fastening system and consists in one of its embodiments of a base plate 13 and a shaft 15 which is preferably arranged perpendicular to the base plate 13. He can also stiffening elements like reinforcing rib (s) 17, which help to divert forces from the shaft 15 to the base plate 13. Their dimensioning and position will be interpreted by a specialist depending on the requirement.
  • the base holder 12 has at least one attachment position 14 for attachment to a structurally viable outer surface 16 (building surface) of a building, preferably on the bottom plate 13 of the base holder.
  • attachment position this means any attachment option that ensures a statically resilient, non-positive connection with the outer surface of a building in the assembled state.
  • An attachment position may be a bore in the base holder through which a dowel / screw connection is made to the building. Alternatively, it can be a plug / clamp / clamp connection, with which the basic holder is attached, for example, to a steel element of the building. It would also be conceivable for a base holder to be glued to an outer surface or to be concreted in with its base plate 13.
  • the holding element has an adjusting element 20, which is arranged between the base holder 12 and the connecting element 30 and allows a power transmission and a distance regulation between connecting element 30 and base holder 12.
  • the adjusting element 20 may be formed as a rod with a threaded portion (threaded rod) which can be screwed into a mating thread in the shaft 15 of the base holder 12. If the base holder 12 is manufactured as an injection-molded element made of high-strength plastic, the mating thread (plus the fastening position) can be co-molded.
  • the base plate 13 from metal and to design the shaft 15 as a threaded rod, which is caulked or welded to the base plate.
  • the adjusting element could then be designed as a sleeve with internal thread, which is screwed onto the shaft thread.
  • per facade element at least two holding elements are provided (preferably at least 3, with larger elements also 4 to 9), it is excluded in the threaded solution that by wind loads the adjusting element is actuated unintentionally. A backup of the adjustment of the retaining element is unnecessary.
  • the retaining element of the present invention must and can therefore be adjusted only one dimension, namely the z-direction, which defines the distance between the outer surface 16 and the retaining plate 30.
  • the arrangement in the x and y direction, ie the (laying) grid on the outer surface 16, is essentially determined by the size and weight of a facade element 50.
  • the loads of heavy elements are derived with more holding elements 10 per unit area outer surface 16.
  • additional security reserves are created by a higher density of retaining elements without the substructure itself having to be designed differently.
  • these holding elements are laying tolerant, in other words, an offset of an element, for example, by a few centimeters vertically or horizontally is possible, for. Holders, cable ducts or similar on the building exterior surface 16 mounted components evade.
  • the individual holding elements 10 have the advantage that they can be set sequentially by a fitter as a whole and not as e.g. Profile rails of teams.
  • a development of the invention described below can be used in particular if a large projection must be achieved; In other words, if the distance between the building surface 16 and target position of the holding plate 30 is very large.
  • a strut 18 can be provided which additionally connects the adjusting element 20 to the building surface 16.
  • the strut thus has the function of an oblique load dissipation.
  • a strut can be designed as a suitably angular flat iron having a through hole or aperture at each end. For example, one end may be mounted between the retaining plate 30 and the adjusting element 20, and the other end is bolted to the building surface.
  • the strut 18 can basically be designed as a tension strut or as a compression strut and thus cause a load transfer to train or pressure.
  • the technical design will be made by a person skilled in the art according to his expertise. Under strut should also be understood a solution with a guy rope, which may also include means for adjusting the length beyond.
  • the holding element 10 furthermore has a connecting element 30 (holding plate), which allows a fixed connection to a facade element 50.
  • the holding plate 30 thus represents the interface between the holding element 10 and the facade element 50.
  • the core element of the invention lies in the connection between the facade element 50 and the metallic holding plate 30, which comprises a hot-melt adhesive layer for this purpose.
  • hotmelt adhesive layer is meant in the broadest sense of any thermally activated compound such as thermoplastics or hot melt adhesives. It is particularly advantageous that they can be applied in the correct quantity and thickness in the manufacture of the retaining element 10 from the factory. Storage of adhesives, errors during storage or processing on site are hereby omitted. As will be shown below, this passive safety is easy to produce even during further assembly.
  • an elastic compensation element 40 can be arranged between the adjusting element 20 and the connecting element 30.
  • the compensating element can be a simple ball joint with limited angular clearance or, more preferably, a tilting capability between retaining plate 30 and the adjusting element 20 made possible by an elastic ring.
  • the retaining plate 20 can be replaced by a screw, a bolt or rivet together with an elastic O-ring. Ring are mounted on the adjusting element 20. The O-ring allows the holding plate a game by a few degrees tilt angle. This play ensures that the bond is relieved during assembly or under wind load.
  • a first step (a) consists of providing such retaining elements as well as facade elements. Fixing and auxiliary material or tools, as known in the art, are implied.
  • a plurality of retaining elements 10 are fastened to a structurally stable building surface.
  • This surface may be a concrete, wood or steel surface of the building, wherein area does not necessarily mean a flat, flat area, but in at least one area sufficient to statically secure a base plate safely.
  • a laying plan exists that prescribes the desired position of the individual holding elements. This will take into account building regulations, the wishes of the client as well as the size and weight of the façade elements. As a rule, the laying plan will specify a publisher grid.
  • the attachment of the holding elements via the attachment position 14, which, as described above, can be varied.
  • the holding element 10 can be fastened to a concrete wall by means of a screw-dowel combination. In a continuing connection and specific tools can be used, which fix the holding element during the setting process, thus relieving the operator.
  • the x- or y-positioning is determined by the mounting position on the building, remains as the only setting step yet (c) the adjustment of the adjusting elements (in the z-direction) such that the retaining plates occupy a desired position.
  • the control of the actual position can be done manually by applying a spirit level or with the aid of lasers or gauges.
  • the adjustment is preferably carried out by turning on or turning a threaded rod. After the attachment of the facade element itself takes place later, a "twisting" of the holding plate 30 is irrelevant, especially since it is preferably carried out rotationally symmetrical.
  • a certain number of retaining elements per facade element is provided. This depends on how big and heavy the facade elements are, how high the permissible load of a holding element is or how large the required span of a holding element. If the holding elements are applied and adjusted, a facade element can be applied to the holding plates in assembly step (d). By applying is meant that the facade elements brought into mechanical contact, but not yet fixed.
  • step (e) the facade element is aligned, i. easiest by relative alignment to adjacent elements or a stop, limit or the like.
  • the easiest way to achieve this is by means of distance gauges, which are pushed or clamped onto already mounted elements and on which the facade element now to be mounted is aligned.
  • the facade elements are temporarily retained, e.g. with magnets, which are placed on the positions on the facade element, behind which the holding plate 30 are located.
  • the facade element may also be e.g. be temporarily held by magnets and the exact alignment then done.
  • an additional, non-positive connection between the building surface 16 and the connecting element 20 can be produced via a strut 18 in a further assembly step.
  • This can be designed as a tension strut or as a strut.
  • a key element of the invention is the bonding of the facade element with the retaining plate of the retaining element. This is done according to the invention by means of an induction heater, which is placed on the facade element (step (f)) and inductively heated by the element through the holding plate, which in turn the hot-melt adhesive layer for Melting brings (step (g)).
  • the alignment of the inductor on the position of the holding plate must be relatively precise, so that the bonding surface is as large as possible. This can be ensured, for example, by means of corresponding metal detectors in the inductor, which indicate when the induction head has the required relative position.
  • the heater can be designed so that only with sufficiently accurate positioning, the induction heater can be turned on.
  • the induction heating can be controlled so that the duty cycle of the induction heating is predetermined and fits optimally to the hot-melt adhesive and the nature of the facade element. Thus, independently of the operator, it can be determined that the adhesive is not melted too long or too short, both of which could affect the quality of the connection.
  • magnets can be used. After the heating process is completed, a magnet in the size of the holding plate is placed on the fresh splice. The heat dissipation via the holding element 10, the facade element (depending on the material) and also on the magnet, which can take over the function of a cooling element. This step (h) is important in the case of hotmelt adhesives for the quality of the adhesive bond.
  • the magnets described can be used for both the temporary attachment of the facade element as well as the holding / cooling process, which reduces the number of necessary assembly tools.
  • an operator alone can temporarily fix the facade element, then each remove a holding magnet, perform the induction melting process and start the magnet again.
  • the other magnets mark the coarse position of the other holding plates and the centering attraction forces When attaching the magnet, an operator will also be able to indirectly detect the position of the retaining plate, even if he can not see it directly.
  • an installer may also be responsible for setting the facade elements and the magnets, while a second performs only the melting process. After the cooling time, the magnets can be removed and used for other fastener inserts.
  • the chips, dusts or sparks could produce or consumables needed. This can be particularly important if, after setting the retaining elements insulation layers are attached, which could be contaminated or damaged by such processing steps.
  • a further advantage of the method according to the invention or of the façade system according to the invention is that the holding elements in the basic version (without strut) project only selectively and slenderly on the building surface.
  • the accessibility of the static building surface is not affected by the longitudinal and transverse beams of a substructure. This may in particular play a role when insulation or other functional layers or elements are to be mounted after the attachment of the holding elements or must.
  • the holding elements are each connected to the static load-bearing building surface only via the base holder and formulated exclusively with the facade elements via the holding plate or otherwise, between the holding elements no additional necessary fasteners or profiles must be used.
  • the bonding method according to the invention moreover has the advantage that individual façade elements can be removed without destruction by renewed heating of the adhesive layer.
  • a holding element as described above in a facade fastening system can also be referred to as a sequence of process steps, wherein the base holder 12 of the holding elements 10 are fixed in a grid on a structurally sustainable building surface 16, so that the holding plate with its hot melt adhesive layer of the Building surface are oriented away to the outside; the position of the retaining plate is brought by adjustment of the adjusting element 20 in a mounting position and then a facade element 50 is brought into a desired position in contact with the hot-melt adhesive layer of several retaining plate. Subsequently, the hotmelt adhesive layer is melted by an induction heater and fixed the splice by means of a holding magnet until a firm connection between the holding plate and facade element 50.
  • FIG. 1 (Side view) and FIG. 5 (Longitudinal section) show a holding element 10 with its basic components basic holder 12, adjusting element 20 and connecting element 30.
  • Connecting element 30 is also in FIG. 2 recognizable in plan view, where it is shown as a round retaining plate 30. Rotationally symmetric designs are preferred, but not required.
  • the base holder 12 in turn can be subdivided into a base plate 13 and a shaft 15 which is usually perpendicular to the base plate.
  • the base plate 13 also has a mounting position 14, over which the base holder 12 on a building surface 16 can be attached.
  • Detail 17 shows a reinforcing rib 17 which, as in FIG FIG. 5 shown, forces from the facade element 50 on the outer surface 16 of the building helps to derive.
  • the adjusting element 20 is in the sectional drawing FIG. 1 recognizable as a threaded rod which is inserted into a mating thread of the base holder 12.
  • FIG. 5 shows the holding plate 30 and 30 'in 2 positions.
  • the compensation element 40 is in FIG. 1 seen in the preferred embodiment as an O-ring, which is arranged as a damping ring between retaining plate 30 and adjusting 20 and provides the described angle elasticity.
  • FIG. 2 shows an axial plan view of a retaining element 10 with the retaining plate 30. Visible is the overhanging base plate 13 of the base 12.
  • the design of the base plate is made as needed as a square, rectangular, round or possibly triangular design.
  • FIGS. 3 and 4 show oblique views of a holding element 10 from two different perspectives.
  • the reference numbers and details are as previously described. Attached to FIG. 3 is a coordinate system for the x / y / z orientations used in the description.
  • FIG. 6 the holding element is shown as a variant 11 with a strut 18.
  • FIG. 6 in this case includes the design as a tension strut, the end of which is mounted on the building surface 16 higher lying.
  • a version as a compression strut would cause a downward force.
  • FIG. 7 additionally shows a view obliquely from above in the assembled state.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
EP17195577.6A 2017-10-10 2017-10-10 Système de fixation de façade et procédé de montage correspondant Withdrawn EP3470598A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17195577.6A EP3470598A1 (fr) 2017-10-10 2017-10-10 Système de fixation de façade et procédé de montage correspondant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17195577.6A EP3470598A1 (fr) 2017-10-10 2017-10-10 Système de fixation de façade et procédé de montage correspondant

Publications (1)

Publication Number Publication Date
EP3470598A1 true EP3470598A1 (fr) 2019-04-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17195577.6A Withdrawn EP3470598A1 (fr) 2017-10-10 2017-10-10 Système de fixation de façade et procédé de montage correspondant

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EP (1) EP3470598A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2159345A1 (fr) * 2008-08-27 2010-03-03 Guido Berger Produktmanagement GmbH Fixation pour éléments de revêtement
KR20110027439A (ko) * 2009-09-10 2011-03-16 현대산업개발 주식회사 대형 복합석재 접착시공방법
WO2011085507A1 (fr) * 2010-01-18 2011-07-21 Flumroc Ag Isolation de façade

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2159345A1 (fr) * 2008-08-27 2010-03-03 Guido Berger Produktmanagement GmbH Fixation pour éléments de revêtement
KR20110027439A (ko) * 2009-09-10 2011-03-16 현대산업개발 주식회사 대형 복합석재 접착시공방법
WO2011085507A1 (fr) * 2010-01-18 2011-07-21 Flumroc Ag Isolation de façade

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