EP3469161B1 - Prefabricated modular element for constructions - Google Patents

Prefabricated modular element for constructions Download PDF

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Publication number
EP3469161B1
EP3469161B1 EP17752169.7A EP17752169A EP3469161B1 EP 3469161 B1 EP3469161 B1 EP 3469161B1 EP 17752169 A EP17752169 A EP 17752169A EP 3469161 B1 EP3469161 B1 EP 3469161B1
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EP
European Patent Office
Prior art keywords
panel
element according
blades
steel
mechanical
Prior art date
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Active
Application number
EP17752169.7A
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German (de)
French (fr)
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EP3469161A1 (en
Inventor
Marco PEDRI
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Pedri Marco
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Individual
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Priority claimed from PCT/IB2017/053494 external-priority patent/WO2017216718A1/en
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    • 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
    • E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
    • E04F13/0805—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and the wall
    • 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
    • E04B1/14—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements being composed of two or more materials
    • 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
    • E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
    • 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
    • E04C3/292—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 wood and metal
    • 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
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02447—Supporting structures
    • E04F15/02458—Framework supporting the panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/76—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal
    • E04B2/78—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips
    • E04B2/7854—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips of open profile
    • E04B2/789—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of metal characterised by special cross-section of the frame members as far as important for securing wall panels to a framework with or without the help of cover-strips of open profile of substantially U- or C- section

Definitions

  • the present invention relates to a prefabricated modular element for constructions or buildings with the features of the appended claim 1.
  • the purpose of the present model is to be advantageously and effectively used in the field of civil and/or industrial buildings, the description of which will make explicit reference without losing its general nature, for the construction of floor slabs and/or coverings in multifloor buildings with frame, wall, core supporting structure or mixed structure and the like, constructed both in wood and/or steel and/or masonry and in concrete and suitable to develop a suitable diaphragm behaviour with respect to horizontal loads and, furthermore, for the construction of vertical walls acting as vertical upwind frameworks.
  • Another object of the present model is to provide a prefabricated modular element which has a high intrinsic structural lightness and an application flexibility.
  • a further object of the present model is to provide a prefabricated modular element with optimum seismic-resistant features.
  • a further object of the present model is to provide a modular element with high environmental sustainability and which can be easily and quickly assembled and mounted.
  • E generally indicates a modular prefabricated element suitable to be used in the field of civil and/or industrial real estate.
  • Element E is suitable to define a constructive component with a structural and casing function obtained by the joining of a panel made of wood to metallic profiles, preferably cold-formed channels in rectilinear axis steel having an open section.
  • the joining between the wooden panel and the metallic profiles is done by the use of mechanical devices of various types and structural adhesives.
  • the collaboration between the wood-based panel and the metallic profiles gives the so composed element strength and stiffness characteristics which are higher than the sum of the performance capabilities of the individual constituent frameworks.
  • the so-defined constructive component subject to bending for vertical loads, is able to ensure a carrying capacity of 25 or more times its weight, is advantageously used to realize both the horizontal structure such as floor slabs or coverings, and the vertical supporting walls.
  • the wooden panel may be provided with one or more openings and/or through or partial holes, and it is suitable to be fixed to the supporting structure of the building by connections arranged at the edges of the wooden panel and/or at the end of the aforementioned metallic profiles.
  • the peculiarities that distinguish the element E from a constructive point of view are: the collaboration developed between the metallic elements and the wooden element, with the creation of a composed two-dimensional steel-wooden system having high performance and lightness; the assembly of the constituent elements implemented taking suitably into account the different degree of constraint required to the system from the ends to the centreline section, with the consequent reduction of joints used to transfer the composed action on the individual constituent frameworks; the pre-processing of the individual composing elements which, on the one hand, involves the construction of customized metallic beams wherein some parts of the connection system are integrated and, on the other hand, the preparation of the wooden-based panel with the creation of holes or cavities having variable number and shape depending on the mechanical performance to be achieve.
  • the element E comprises, in the upper part, a wooden panel 1 in "XLAM" (plywood made of hardwood board having crossed layers) and two steel collaborating beams 2 and 2' jointly arranged below the wooden panel 1, as better specified hereinafter.
  • XLAM wood made of hardwood board having crossed layers
  • the panel 1 is defined by several layers, preferably five layers, crossed and glued together of fir-wooden axes, with indicative dimensions of 2400 x 6000 mm and an indicative thickness of 85 mm.
  • perforated pockets 3 having indicative dimensions of 20 x 150 mm with an indicative depth of 80 mm.
  • Each beam 2,2' is made of two shaped press-formed made of steel or equivalent material which are welded together to form a single "omega" profile.
  • the base material is, preferably but not limited to, a 4 mm thick steel sheet having the S 355 JR quality.
  • the coupling and the folding of such sheets are designed to create a supporting surface for the soffit of the wooden panel 1, exposing, at the same time, blades 4 having a dimension of about 70 x 140 mm on the top of the shaped elements, on both sides of the shaped elements themselves.
  • the blades 4 are perforated with a plurality of holes, preferably but not limited to eighteen holes with ⁇ 14 mm and, on the same blades 4, it is provided the mechanical fixing of spacer rivets.
  • the so-made steel beams 2 and 2' are then hot galvanized.

Description

  • The present invention relates to a prefabricated modular element for constructions or buildings with the features of the appended claim 1.
  • The purpose of the present model is to be advantageously and effectively used in the field of civil and/or industrial buildings, the description of which will make explicit reference without losing its general nature, for the construction of floor slabs and/or coverings in multifloor buildings with frame, wall, core supporting structure or mixed structure and the like, constructed both in wood and/or steel and/or masonry and in concrete and suitable to develop a suitable diaphragm behaviour with respect to horizontal loads and, furthermore, for the construction of vertical walls acting as vertical upwind frameworks.
  • Another object of the present model is to provide a prefabricated modular element which has a high intrinsic structural lightness and an application flexibility.
  • A further object of the present model is to provide a prefabricated modular element with optimum seismic-resistant features.
  • A further object of the present model is to provide a modular element with high environmental sustainability and which can be easily and quickly assembled and mounted.
  • DE 16 59 195 A1 discloses a modular prefabricated element with the features of the preamble of claim 1.
  • The structural and functional characteristics of the present model and its advantages with respect to prefabricated elements belonging to the known art and currently available on the market will be clearer and more evident from the claims below, and in particular from an analysis of the description that follows, made with reference to the attached schematic drawings, and relative to a preferred but not-limiting embodiment of the present prefabricated modular element, wherein:
    • Figure 1 shows a front view of the present prefabricated element;
    • Figure 2 is a side view of the prefabricated element of Figure 1;
    • Figure 3 is a plan bottom view of the prefabricated element of Figure 1;
    • Figure 4 is a perspective bottom view of the present prefabricated element; and
    • Figure 5 is a perspective top view of the present prefabricated element.
  • With reference to the accompanying figures, E generally indicates a modular prefabricated element suitable to be used in the field of civil and/or industrial real estate.
  • Element E is suitable to define a constructive component with a structural and casing function obtained by the joining of a panel made of wood to metallic profiles, preferably cold-formed channels in rectilinear axis steel having an open section. The joining between the wooden panel and the metallic profiles is done by the use of mechanical devices of various types and structural adhesives. The collaboration between the wood-based panel and the metallic profiles gives the so composed element strength and stiffness characteristics which are higher than the sum of the performance capabilities of the individual constituent frameworks.
  • In particular, the so-defined constructive component, subject to bending for vertical loads, is able to ensure a carrying capacity of 25 or more times its weight, is advantageously used to realize both the horizontal structure such as floor slabs or coverings, and the vertical supporting walls. The wooden panel may be provided with one or more openings and/or through or partial holes, and it is suitable to be fixed to the supporting structure of the building by connections arranged at the edges of the wooden panel and/or at the end of the aforementioned metallic profiles. In particular, the peculiarities that distinguish the element E from a constructive point of view are: the collaboration developed between the metallic elements and the wooden element, with the creation of a composed two-dimensional steel-wooden system having high performance and lightness; the assembly of the constituent elements implemented taking suitably into account the different degree of constraint required to the system from the ends to the centreline section, with the consequent reduction of joints used to transfer the composed action on the individual constituent frameworks; the pre-processing of the individual composing elements which, on the one hand, involves the construction of customized metallic beams wherein some parts of the connection system are integrated and, on the other hand, the preparation of the wooden-based panel with the creation of holes or cavities having variable number and shape depending on the mechanical performance to be achieve.
  • More in detail, according to what illustrated in Figures 1 to 5, the element E comprises, in the upper part, a wooden panel 1 in "XLAM" (plywood made of hardwood board having crossed layers) and two steel collaborating beams 2 and 2' jointly arranged below the wooden panel 1, as better specified hereinafter.
  • The panel 1 is defined by several layers, preferably five layers, crossed and glued together of fir-wooden axes, with indicative dimensions of 2400 x 6000 mm and an indicative thickness of 85 mm.
  • In the panel 1 there are perforated pockets 3 having indicative dimensions of 20 x 150 mm with an indicative depth of 80 mm.
  • Each beam 2,2' is made of two shaped press-formed made of steel or equivalent material which are welded together to form a single "omega" profile. The base material is, preferably but not limited to, a 4 mm thick steel sheet having the S 355 JR quality. The coupling and the folding of such sheets are designed to create a supporting surface for the soffit of the wooden panel 1, exposing, at the same time, blades 4 having a dimension of about 70 x 140 mm on the top of the shaped elements, on both sides of the shaped elements themselves. The blades 4 are perforated with a plurality of holes, preferably but not limited to eighteen holes with ⌀14 mm and, on the same blades 4, it is provided the mechanical fixing of spacer rivets.
  • Preferably, the so-made steel beams 2 and 2' are then hot galvanized.
  • The junction between the wooden panel 1 and the beams 2,2' is done with the following preferential mode:
    • casting an epoxy resin mixture HILTI CB-G EG in the pockets 3 of the wooden panel 1;
    • inserting the blades 4 into the pockets 3 just resinated (the spacer rivets ensure that the blade has its entire surface in contact with the epoxy resin mixture);
    • fixing screws, such as Wütrh ASSY VG TC ø6*80 mm screws and full washers for Wütrh ASSY 3.0 TPS ø6 screws.
  • The modular prefabricated element E described above and illustrated is, thus, provided with the following remarkable advantages:
    • Intrinsic structural lightness, with high carrying capacity/weight ratio.
    • Dry mounting, with few and simple operations that likely require the use of screws and/or bolts.
    • Rapid production and marking in production plant;
    • Environmental sustainability: during the construction of the composed components, recyclable and/or natural materials are mainly used. In addition, the element has been studied with the aim of developing an effective collaboration between the wooden-based and the metallic-based elements, with the aim of reducing consumption and avoiding material waste;
    • Modularity: the present element has plan view dimensions designed to facilitate the transportation and the installation. In addition, the composed element is able to integrate into the major modern bearing systems without changing the related construction process and it also allows to replace the floor slabs and/or the coverings of the existing buildings;
    • Flexibility: the present element can be disassembled, retrieved and reused, or replaced at any time after the construction of the building.
    • Seismic-resistance: in the construction of the horizontal structure and of the vertical walls of the present element, it gives the entire structure a high stamina to both horizontal and vertical loads, particularly limiting the damage to seismic actions, in particular thanks to the reduction of the structural seismic mass.

Claims (7)

  1. Modular prefabricated element (E), suitable for the structural construction of slabs in multistory buildings, comprising:
    - panel means (1),
    - beam means (2,2') that are provided with blades (4) inserted into perforated seats (3) which are in said panel means (1), and
    - mechanical and adhesive fixing means that connect panel means (1) and beam means (2,2') to each other,
    characterized in that:
    - said panel means (1) is a wood XLAM panel defined by several crossed layers of plywood made of hardwood board,
    - wherein the beam means are two steel collaborating beams (2, 2') jointly arranged below said panel (1) and
    - each beam (2, 2') is made of two shaped press-formed elements made of steel which are welded together to form a single "omega" profile.
  2. Element according to claim 1, characterized in that the said panel means (1) are realized with preferably five layers, crossed and glued together of fir-wooden axes.
  3. Element according to one or more of the claims 1 to 2, characterized in that the said means (2.2) are made of galvanized steel.
  4. Element according to claim 1, characterized in that the said mechanical fixing means comprise a plurality of holes provided on the blades (4) and screws.
  5. Element according to claim 1, characterized in that the said adhesive means comprise a mixture based on epoxy resin.
  6. Element according to claim 1, characterized in that the blades (4) are perforated with a plurality of holes and, on the same blades (4), it is provided the mechanical fixing of spacer rivets.
  7. Slab made of at least one modular prefabricated element according to one or more of the preceding claims 1 to 6.
EP17752169.7A 2016-06-14 2017-06-13 Prefabricated modular element for constructions Active EP3469161B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUA20168539 2016-06-14
PCT/IB2017/053494 WO2017216718A1 (en) 2016-06-14 2017-06-13 Prefabricated modular element for constructions

Publications (2)

Publication Number Publication Date
EP3469161A1 EP3469161A1 (en) 2019-04-17
EP3469161B1 true EP3469161B1 (en) 2022-03-30

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Application Number Title Priority Date Filing Date
EP17752169.7A Active EP3469161B1 (en) 2016-06-14 2017-06-13 Prefabricated modular element for constructions

Country Status (1)

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EP (1) EP3469161B1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "What Is Cross Laminated Timber?", INTERNET CITATION, 1 January 2016 (2016-01-01), XP009516899, Retrieved from the Internet <URL:http://web.archive.org/web/20161115141418/http://www.xlam.co.nz/xlam-clt.html> [retrieved on 20161115] *

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