EP3144439B1 - Dalle, en particulier dalle de plafond ou de sol pour une construction - Google Patents

Dalle, en particulier dalle de plafond ou de sol pour une construction Download PDF

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Publication number
EP3144439B1
EP3144439B1 EP16189872.1A EP16189872A EP3144439B1 EP 3144439 B1 EP3144439 B1 EP 3144439B1 EP 16189872 A EP16189872 A EP 16189872A EP 3144439 B1 EP3144439 B1 EP 3144439B1
Authority
EP
European Patent Office
Prior art keywords
web
slab
elements
concrete slab
system floor
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
EP16189872.1A
Other languages
German (de)
English (en)
Other versions
EP3144439A1 (fr
EP3144439C0 (fr
Inventor
Michael OLIPITZ
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.)
SDO ZT GmbH
Original Assignee
Franz Oberndorfer GmbH and Co KG
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 Franz Oberndorfer GmbH and Co KG filed Critical Franz Oberndorfer GmbH and Co KG
Priority to HRP20231055TT priority Critical patent/HRP20231055T1/hr
Publication of EP3144439A1 publication Critical patent/EP3144439A1/fr
Application granted granted Critical
Publication of EP3144439B1 publication Critical patent/EP3144439B1/fr
Publication of EP3144439C0 publication Critical patent/EP3144439C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/06—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material the elements being prestressed
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
    • E04C3/294—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete of concrete combined with a girder-like structure extending laterally outside the element
    • 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, i.e. of essentially one-dimensional [1D] or two-dimensional [2D] extent
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02044—Separate elements for fastening to an underlayer
    • E04F2015/02105—Separate elements for fastening to an underlayer without load-supporting elongated furring elements between the flooring elements and the underlayer
    • E04F2015/02127—Separate elements for fastening to an underlayer without load-supporting elongated furring elements between the flooring elements and the underlayer adjustable perpendicular to the underlayer

Definitions

  • the invention relates to a slab, in particular a floor or ceiling slab for a building, with a concrete slab and at least one profiled beam partially embedded therein with a web and at least one flange, the web having at least sections of a profile in its longitudinal direction that is aligned transversely to the longitudinal direction .
  • Such plates are made, for example EP 0 369 914 A1 and WO 95/20073 A1 are known and are prefabricated in the construction industry and placed on supports on foundations, supports or load-bearing walls, with a system floor or the like subsequently being placed on the profiled beams.
  • a generic panel, in particular a roof panel, in which a web made of fiber-reinforced plastic panels in its longitudinal direction at least partially has a transversely aligned to the longitudinal direction profiling, which extends from the flange to the concrete slab, is from EP 1 174 555 A1 known.
  • prestressed concrete slabs which are usually referred to as prestressed concrete slabs, has the advantage that the load capacity of the slabs is the same or higher with a lower slab thickness or construction height and thus weight, which not only has a positive effect on the weight of the slabs themselves, but also on the overall structure or the total weight of the building.
  • profile supports which are embedded in concrete with their web in the prestressed concrete slab and which at the same time serve as supports for the system floor or corresponding system floor elements.
  • profile beams serve on the one hand as a support for the system floor and on the other hand in connection with the concrete slab to increase the strength of the slab, although it is undesirable to prestress the prestressed concrete slab into the profile beams or to redistribute the prestressing forces in the steel.
  • the object of the invention is therefore to solve this problem.
  • the profile supports used in the invention are known per se in the prior art and are referred to as corrugated web supports, the corrugated web in the known supports essentially serving to increase the buckling resistance of the web.
  • this profiling is used to stabilize the upper chord or flange and at the same time to compensate for tensile or compressive forces introduced into the web by the prestressed concrete slab in the longitudinal direction of the profile beams, since the web easily absorbs these forces like a bellows by changing its shape can compensate without introducing them into the top chord or flange.
  • the plate according to the invention is preferably only uniaxially stretched, but can also be given a biaxial load-bearing effect, e.g. by adding in-situ concrete.
  • the profiling does not have to extend over the entire length of the profile supports, although this is preferred.
  • the profiling can have a wide variety of shapes, for example a wave shape, trapezoidal shape or the like.
  • the profiling extends into the prestressed concrete slab, since it is preferred for load-related reasons as well as production-related reasons if the entire web has a continuous profiling.
  • connecting means for improved anchoring of the web in the concrete slab are arranged in the area of the sections of the web accommodated in the concrete slab.
  • These connecting means can, for example, be reinforcement elements that extend longitudinally or transversely to the web and are connected to the web either in a materially bonded manner, for example by welding, or in a form-fitting manner, for example by means of corresponding holes in the web.
  • recesses can be provided in the webs, which are arranged outside or above the concrete slab, through which the installation lines can be laid.
  • the recesses can assume any shape, but are preferably rectangular, trapezoidal or round.
  • the recesses can also extend into the concrete slab and in particular be open towards the edge of the web accommodated in the concrete slab, which simplifies the production of the recesses.
  • the flange and the web preferably consist of different parts which are welded to one another, since this offers the possibility of optimizing both the flange and the web in terms of weight and strength and then connecting them to one another, for example by welding .
  • a system floor can be placed on the profile supports, which extends over the entire area of the plate according to the invention or only over parts of it. It is preferred if the width of the system floor elements essentially corresponds to the distance between two profile supports and the length of the panel is essentially the same size, at most twice the width. The advantage of this dimensioning is that the system floor elements can be easily removed and replaced during installation work.
  • damping elements can be placed between the flanges and the system floor or the system floor elements, as is known.
  • only discrete damping elements are required for the above-mentioned dimensioning of the system floor elements in the invention, which only have to be present in the area of the abutting corners of the system floor elements, which means that savings can be achieved compared to continuous damping elements.
  • spacer elements or height-adjustable adjustment elements can be inserted at the points where the damping elements are arranged, if this is necessary or desirable for level adjustment of the system floor elements.
  • a slab 1 shows a slab 1 according to the invention, which is essentially made up of a prestressed concrete slab 2 or prestressed concrete slab and profiled beams 3, with four profiled beams 3 being provided in the illustrated embodiment. More or fewer profile supports are of course possible, with the concrete slab in the illustrated embodiment for example having a width of 2.4 m and the profile supports 3 having a distance of 60 cm from one another.
  • the length of the concrete slab 2 is arbitrary within the scope of the technical possibilities and can be, for example, up to 8m or 16m long. Since the structure of a prestressed concrete slab is fundamentally known to a person skilled in the art, it will not be described in detail. For the same reason, the clamping elements or the reinforcement of the concrete slab 2 are not shown.
  • the profiled beams 3 are essentially T-profiles with a web 4 and a flange 5.
  • the web 4 is partially concreted into the concrete slab 2, with the end of the web 4 opposite the flange 5 protruding from the opposite surface of the concrete slab 2 has a distance.
  • the web 4 has a profile which, for example as in 6 shown, may be wavy, with the profiling transverse to the longitudinal extent of the Profile carrier 3 extends, as well as the in 2 drawn lines 6 can be removed. Profile shapes other than wavy, for example trapezoidal, are also possible.
  • the profile beams 3 are made of steel.
  • the 2 Fig. 12 shows an enlarged side view of a section of a profile beam 3.
  • the web 4 in this embodiment has trapezoidal recesses 7, the recesses 7 being arranged so that they are partly outside or above the concrete slab 2 and towards the edge 8 of the web 4 are open, so that the recesses 7 extend into the concrete slab 2.
  • trapezoidal sections 9, which are accommodated in the concrete slab 2 openings 10 are attached. Connecting means can be inserted through these openings 10, which can be, for example, reinforcement elements, pins, head bolts or the like, which can be permanently connected to the web 4, for example welded, if required.
  • further connecting means can be provided, which can be rods, for example made of torte steel, which extend in the longitudinal direction of the profiled beam 3 and are firmly connected to the sections 9, for example welded.
  • the length of these bars can be relatively short, but can also correspond to the length of the profiled beams 3.
  • the profiled beams 3 can also be accommodated in the concrete slab 2 without any connecting means at all.
  • recesses 7 are provided, there is a simple possibility of laying both in the longitudinal direction of the profiled support 3 and transversely to these installation lines. Since the inventive effect of the corrugated webs 4 is as possible not stresses from the concrete slab 2 in the profile beam 3 and especially its flange 5, the recesses 7 not only have no negative effect, but also support this function.
  • damping elements 14 are provided in order to achieve sound insulation between the system floor elements 13 and the profiled supports 3. These damping elements 14 can extend over the entire length of the profiled beam 3 . However, it is alternative and preferred in the invention if discrete damping elements 14 are used, which are arranged on the flanges 5 at defined intervals spaced apart from one another, which enables a material saving in this regard.
  • system floor elements 13 are preferred in the invention which are approximately the same length as they are wide , i.e. essentially square.
  • system floor elements 13 which are shorter or longer than their width (e.g. the distance between two profile supports 3 and whose length is in particular an integer multiple of the width.
  • the advantage of the dimension of the system floor elements 13, which is preferred as described above, is that it is easy to handle during installation and also in that it can be easily removed if access to existing installations or the installation of new installations in the space below the system floor elements 13 is required.
  • the discrete damping elements 14 are preferably arranged in the corner areas of the system floor elements 13 , with all system floor elements 13 adjoining one another resting on a single damping element 14 or adjustment element 15 .
  • adjustment elements 15 are used, which are placed on the damping elements 14.
  • these adjusting elements 15 consist of a base plate 16 with a threaded rod 17 onto which a sleeve 18 is screwed.
  • the sleeve 18 has a flange 19 on which a plate 20 is supported.
  • the plate elements 13 In their corner areas, the plate elements 13 have cutouts 21 in the shape of a sector of a circle, in which on the one hand the sleeve 18 is accommodated and on the other hand access from above is provided in order to be able to adjust the height using the adjustment elements 15 when the plate elements 13 are already in place are.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Floor Finish (AREA)
  • Rod-Shaped Construction Members (AREA)

Claims (14)

  1. Dalle, en particulier dalle de sol ou de plafond, pour une construction avec une dalle en béton (2) et au moins une poutre profilée (3) partiellement encastrée dans celle-ci avec une âme (4) et une bride (5), l'âme (4) présentant dans sa direction longitudinale, au moins par sections, un profilage orienté transversalement à la direction longitudinale, qui s'étend de la bride (5) jusque dans la dalle en béton (2), caractérisée en ce que la dalle en béton (2) est précontrainte et en ce que la poutre profilée (3) est en acier.
  2. Dalle selon la revendication 1, caractérisée en ce que le profilage présente une forme ondulée, trapézoïdale ou similaire.
  3. Dalle selon la revendication 1 ou 2, caractérisée en ce qu'au moins une partie des poutres se présente sous la forme de poutres en T dont l'âme (4) est encastrée dans la dalle en béton (2).
  4. Dalle selon l'une des revendications 1 à 3, caractérisée en ce que des moyens de liaison sont disposés dans la zone des sections de l'âme (4) logées dans la dalle en béton (2) pour améliorer l'ancrage de l'âme (4) dans la dalle en béton (2), les moyens de liaison étant de préférence des éléments d'armature s'étendant longitudinalement ou transversalement par rapport à l'âme (4).
  5. Dalle selon la revendication 4, caractérisée en ce que les moyens de liaison sont reliés à l'âme (4) par liaison de matière ou de forme.
  6. Dalle selon la revendication 4, caractérisée en ce que les moyens de liaison sont des parties pliées de l'âme (4).
  7. Dalle selon l'une des revendications 1 à 6, caractérisée en ce que l'âme (4) présente des évidements (7) qui sont disposés à l'extérieur de la dalle en béton (2) et qui s'étendent de préférence jusque dans la dalle en béton (2).
  8. Dalle selon l'une des revendications 1 à 7, caractérisée en ce que la bride (5) et l'âme (4) sont soudées l'une à l'autre.
  9. Dalle selon l'une des revendications 1 à 8, caractérisée en ce que deux ou plusieurs poutres profilées (3) sont disposées essentiellement parallèlement les unes à côté des autres et en ce qu'un fond de système, en particulier des éléments de fond de système (13), reposent sur les brides (5).
  10. Dalle selon la revendication 9, caractérisée en ce que la largeur des éléments de fond de système (13) correspond essentiellement à la distance entre deux poutres profilées (3).
  11. Dalle selon la revendication 9 ou 10, caractérisée en ce que la longueur des éléments de fond de système (13) correspond essentiellement à la distance entre deux poutres profilées (3) .
  12. Dalle selon l'une des revendications 9 à 11, caractérisée en ce que les éléments de fond de système (13) reposent sur les brides (5) par l'intermédiaire d'éléments amortisseurs discrets (14).
  13. Dalle selon la revendication 11 ou 12, caractérisée en ce que les éléments amortisseurs (14) sont disposés sur les brides (5) à une distance qui correspond essentiellement à la longueur des éléments de fond de système (13).
  14. Dalle selon l'une des revendications 9 à 13, caractérisée en ce que des éléments de réglage (15) réglables en hauteur sont disposés entre la bride (5) et les éléments de fond de système (13), en particulier aux endroits où sont disposés les éléments amortisseurs (14).
EP16189872.1A 2015-09-21 2016-09-21 Dalle, en particulier dalle de plafond ou de sol pour une construction Active EP3144439B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20231055TT HRP20231055T1 (hr) 2015-09-21 2016-09-21 Ploča, posebice podna ili stropna ploča za građevinsku konstrukciju

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA617/2015A AT517824B1 (de) 2015-09-21 2015-09-21 Platte, insbesondere Boden- bzw. Deckenplatte für ein Bauwerk

Publications (3)

Publication Number Publication Date
EP3144439A1 EP3144439A1 (fr) 2017-03-22
EP3144439B1 true EP3144439B1 (fr) 2023-06-07
EP3144439C0 EP3144439C0 (fr) 2023-06-07

Family

ID=56979465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16189872.1A Active EP3144439B1 (fr) 2015-09-21 2016-09-21 Dalle, en particulier dalle de plafond ou de sol pour une construction

Country Status (6)

Country Link
EP (1) EP3144439B1 (fr)
AT (1) AT517824B1 (fr)
ES (1) ES2954862T3 (fr)
HR (1) HRP20231055T1 (fr)
HU (1) HUE063142T2 (fr)
PL (1) PL3144439T3 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174555A1 (fr) * 2000-07-21 2002-01-23 SÜBA Bau Aktiengesellschaft Plaque préfabriquée de béton

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT25309B (de) * 1903-08-28 1906-08-10 Theodor Franke <IMAGE>-Eisen mit wellenförmigem Steg als Einlage für Betonkonstruktionen.
GB504146A (en) * 1938-01-27 1939-04-20 Budd Edward G Mfg Co Improvements in or relating to composite sheet metal structures and methods of fabricating the same
DE1004790B (de) * 1954-04-22 1957-03-21 Hanns Hess Vollwandtraeger mit hoelzernen Gurtbohlen und quer zur Laengsachse gewelltem oder gefaltetem Steg
GB937440A (en) * 1960-04-07 1963-09-18 United Steel Companies Ltd Improvements relating to metal members for use in composite structural parts of concrete and metal
CH551599A (de) * 1971-07-06 1974-07-15 Tschudin Hans Rudolf Gebaeude mit einer anlage zum belueften bewohnter raeume.
US4115971A (en) * 1977-08-12 1978-09-26 Varga I Steven Sawtooth composite girder
DE2929350A1 (de) * 1979-07-20 1981-02-12 Ulrich Dipl Ing Fiergolla Verbundtraeger fuer gebaeudedecken
DE3019744A1 (de) * 1980-05-23 1981-12-03 Ulrich Dipl.-Ing. 4992 Espelkamp Fiergolla Verbundtraeger in montagebauweise als biegesteife verbindung vorgefertigter deckenplatten
BE889795A (fr) * 1981-07-29 1981-11-16 Smal Freddy Procede de fabrication d'une poutre preflechie, dont la poutre de base est une poutre mixte beton-acier, et poutre preflechie ainsi realisee.
DE3738524A1 (de) * 1987-11-13 1989-05-24 Gernot Wolperding Verbundtraeger mit stahlsteg
CA2003060A1 (fr) * 1988-11-16 1990-05-16 Pierre Trouillet Procede de solidarisation d'une masse de matiere a un support fonctionnel et dispositifs ainsi obtenus
GB2267720B (en) * 1992-06-08 1996-05-15 Huang Chien Teh Modular access floor unit
US5509243A (en) * 1994-01-21 1996-04-23 Bettigole; Neal H. Exodermic deck system
US20030097806A1 (en) * 1996-03-05 2003-05-29 Brown John G. Inner accessible commutering enterprise structure interfaced with one or more workplace, vehicle or home commutering stations
DE20206230U1 (de) * 2002-02-05 2002-07-04 Weiss-Ausbausysteme GmbH, 73527 Schwäbisch Gmünd Hohlboden mit Brandschutz

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174555A1 (fr) * 2000-07-21 2002-01-23 SÜBA Bau Aktiengesellschaft Plaque préfabriquée de béton

Also Published As

Publication number Publication date
AT517824A1 (de) 2017-04-15
HUE063142T2 (hu) 2023-12-28
AT517824B1 (de) 2017-10-15
EP3144439A1 (fr) 2017-03-22
ES2954862T3 (es) 2023-11-27
HRP20231055T1 (hr) 2023-12-22
PL3144439T3 (pl) 2023-12-27
EP3144439C0 (fr) 2023-06-07

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