WO2010102927A1 - Élément modulaire en bois pour réaliser des parois - Google Patents

Élément modulaire en bois pour réaliser des parois Download PDF

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Publication number
WO2010102927A1
WO2010102927A1 PCT/EP2010/052656 EP2010052656W WO2010102927A1 WO 2010102927 A1 WO2010102927 A1 WO 2010102927A1 EP 2010052656 W EP2010052656 W EP 2010052656W WO 2010102927 A1 WO2010102927 A1 WO 2010102927A1
Authority
WO
WIPO (PCT)
Prior art keywords
modular element
laminated wood
wood panel
coupling means
panels
Prior art date
Application number
PCT/EP2010/052656
Other languages
English (en)
Inventor
Claudio Costantini
Original Assignee
Claudio Costantini
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 Claudio Costantini filed Critical Claudio Costantini
Publication of WO2010102927A1 publication Critical patent/WO2010102927A1/fr

Links

Classifications

    • 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
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2/42—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities
    • E04B2/44—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities using elements having specially-designed means for stabilising the position; Spacers for cavity walls
    • 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
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
    • E04B2002/0206—Non-undercut connections, e.g. tongue and groove connections of rectangular shape
    • 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
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0243—Separate connectors or inserts, e.g. pegs, pins or keys
    • E04B2002/0245—Pegs or pins

Definitions

  • Wooden modular element for making walls Wooden modular element for making walls.
  • the present patent application for industrial invention relates to a wooden modular element for making walls.
  • Wooden modular elements for making walls are known on the market, which are composed of a bearing structure made of solid wood and lateral sides made of laminated wood.
  • the values of total volumetric shrinkage of solid wood are comprised between 9% and 23% approximately, with high variability also between samples taken from the same trunk.
  • Total axial shrinkage can vary from 0.1 % to 0.8% (most frequent values: 0.2%-0.5%); total radial shrinkage from 2% to 12% (most frequent values: 3%-6%) and total tangential shrinkage from 4% to 23% (most frequent values 6%-12%).
  • Wood anisotropy against shrinkage is the main cause of the following drawbacks (of course, in addition to volume reduction): - distortion of solids: any three-dimensional solid obtained from fresh wood after drying will be impaired, in addition to volume reduction, also by considerable distortion, that is to say the change of ratios between the geometrical dimensions of the piece with respect to initial values (i.e. cross- sections of sawn pieces with ratio between sides not too far from unit tend to assume a rhomboidal shape);
  • Warping is a type of deformation from shrinkage that occurs in boards that do not contain central medulla, being cut along tangential planes.
  • the side of the board in most tangential position with respect to the opposite side will tend to shrink more than the second one, exerting a tensile force that will bring the sawn piece to curve transversally, always directing the convexity of the curve towards the medulla; warping tends to increase with tangentiality and thickness of the board and it is a defect that considerably reduces processing output. Warping can be reduced, although not eliminated, by forcing the board in flat position during drying; however, this favours the occurrence of internal stress that can cause problems during the next processing operations.
  • the patent application EP 0 744 507 discloses a modular element for making vertical walls of buildings that comprises intermediate elements disposed between two external parallel panels. Intermediate elements are provided with upper protruding parts and lower recessed parts in such a way to allow for inserting one module on top of the other. However, the lower border of the external panels is situated at the same level as the lower border of the intermediate elements. This configuration prevents from using self-tapping screws to fix two modules.
  • the purpose of the present invention is to eliminate the drawbacks of the known art, by devising a wooden modular element for making walls characterised by reliability, resistance, homogeneity and stable dimensions.
  • the wooden modular element for making walls of the invention comprises a central bearing structure disposed between two lateral sides. Each lateral side is composed of a panel that acts as formwork.
  • the central bearing structure comprises at least two bodies that act as connection of the two lateral sides. Each body consists of a laminated wood panel.
  • the laminated wood panel body is provided with a flat protruding part that extends on a vertical plane and protrudes on top with respect to the upper border of the lateral panels.
  • the lower border of the lateral panels protrudes from the bottom with respect to the lower border of the bodies of the bearing structure, in such a way to generate an air space adapted to receive the flat protruding part of the body of the inferior module.
  • the laminated wood used for the bearing structure conjugates the positive properties of solid wood (renewability, lightness, workability, adequate seismic behaviour, etc.) with the characteristics of a more reliable, homogeneous, high-performance material, obtainable in multiple dimensions and shapes with limited energy dispersion and good recyclability properties.
  • laminated wood has the following advantages: - better resistance and mechanical rigidity properties;
  • Laminated wood normally has the best properties in terms of resistance and rigidity (comparable in all directions of the plane); therefore, it is able to originate works with bearing function, not only as intermediate floor or roof elements, but also as punctiform structures with box-shaped section.
  • bearing function not only as intermediate floor or roof elements, but also as punctiform structures with box-shaped section.
  • the crossed arrangement of longitudinal and transversal plates ensures that:
  • each board forming the plates is subject to its own particular deformation, thus causing different internal stress levels that are set off mutually. This results in higher reliability of the product, also because the boards are subject to preventive quality control to eliminate any macro defects.
  • the crossed disposition of the longitudinal and transversal plates of laminated wood allows for reducing bulging and shrinking phenomena to negligible values, while considerably increasing static resistance and dimensional stability.
  • laminated wood is a material characterised by predictable and interpretable behaviour.
  • Fig. 1 is an exploded perspective view that shows a wooden modular element according to the invention
  • Fig. 1 A is an exploded perspective view of the wooden plates used to make the laminated wood body
  • Fig.1 B is an enlarged view of a detail of Fig. 1 that shows the configuration of the laminated wood used for the body of the modular element of the invention
  • Fig. 2 is a front view of the modular element of Fig. 1 in assembled condition
  • Fig. 3 is a side view of the modular element of Fig. 1 in assembled condition
  • Fig. 4 is a top view of the modular element of Fig. 1 in assembled condition
  • Fig. 5 is a perspective view that shows a wall made with the modular elements of Fig. 1 in assembled condition
  • Fig. 6 is a plan view of the wall of Fig. 5
  • Fig. 7 is a front view of the wall of Fig. 1 ;
  • the modular element (1 ) comprises a central bearing structure (2) disposed between two lateral sides (3) composed of panels (30) acting as formworks.
  • the bearing structure (2) comprises at least two bodies (20) consisting in laminated wood panels that act as vertical connection for the two lateral sides (3).
  • the laminated wood panel bodies (20) have a basically square or rectangular section.
  • the planes of the two bodies (20) are parallel and orthogonal with respect to the planes of the two panels (30) of the lateral sides (3).
  • the thickness of the bodies (20) is higher than the thickness of the panels (30) of the sides.
  • the thickness of each body (20) is comprised in the range from 60 mm to 240 mm.
  • each laminated wood panel body (20) is obtained by overlapping at least two plates (layers) of wood (26) with grain (fibres) of a plate disposed orthogonally with respect to the grain of the adjacent plate.
  • an odd number of plates is used, in which the two ending plates have fibres in vertical direction to give higher resistance to peak loads to the body (20).
  • the body (20) is fixed to the lateral panels (30) on the sides of the thickness of the plates (26) of the body (20) in such a way that the fibres of the ending plates are arranged in vertical direction.
  • each plate (26) is composed of a plurality of strips (27) with parallelepiped shape, placed one next to the other and glued.
  • the strips (27) of the ending plates have parallel fibres in vertical direction.
  • the bodies (20) of the bearing structure have at least one seat or through housing (21 ) for passage of cables or pipes.
  • Two seats (21 ) are preferably provided on the sides of each body (20) in such a way that the body (20) has an overturned-H configuration.
  • Each body (20) has a basically rectangular configuration with rounded corners (22) that act as invitation for centring when multiple modules (1 ) are stacked.
  • At least a blind hole (23) is obtained on the upper side of each body (20) to receive a plug (4) used for connection with the body of the superior module. Accordingly, also the lower side of each body is provided with a blind hole (24) (Fig. 2) to receive a plug for connection with the body of the inferior module.
  • the plugs (4) can be made of wood.
  • the material of the panels (30) of the lateral sides is not important from the static point of view because it is the vertical connection body (20) that acts as bearing element for the entire module (1 ). Therefore, any type of inexpensive material can be chosen for the panels (30) of the sides, because they only act as formwork without any stability function.
  • the lateral sides (3) are preferably made of oriented strand board (OSB) panels (30) with 600x300 mm area and 25 mm thickness.
  • a longitudinal groove (31 ) is obtained on the lower border of each panel (30) of the sides, whereas a longitudinal rib (32) is obtained on the upper border of each panel (30).
  • This generates a male-female fitting system on the horizontal borders and for the entire length of the lateral sides of the modular element (1 ) in order to fit modular elements (1 ) in overlapped position one on top of the other.
  • the panels (30) of the sides are fixed to the bodies (20) of the support structure by means of self-tapping screws (5).
  • the lower border of the panels (30) of the sides protrudes in lower position with respect to the lower border of the bodies (20) of the bearing structure, in such a way to generate an air space (6) adapted to receive the upper part of the inferior module.
  • the upper side of the bodies (20) protrudes in upper position with respect to the upper border of the panels (30).
  • the body (20) has a flat protruding part (29) that extends on a vertical plane.
  • the self-tapping screw crosses the lateral panel (30) of the upper module and is screwed in the flat protruding area (29) of the body of the inferior module, ensuring perfect fitting between two stacked modules.
  • Figs. 5 - 7 shows a wall obtained with the modular elements (1 ) of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Panels For Use In Building Construction (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

L'invention porte sur un élément modulaire en bois (1) pour réaliser des parois, lequel élément comprend une structure de support centrale (2) disposée entre deux côtés latéraux (3) constitués par des panneaux (30) jouant le rôle de coffrage. La structure de support centrale (2) comprend au moins deux corps (20) constitués par des panneaux en bois stratifiés qui jouent le rôle de liaison pour les deux côtés latéraux (3).
PCT/EP2010/052656 2009-03-10 2010-03-03 Élément modulaire en bois pour réaliser des parois WO2010102927A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000044A ITMC20090044A1 (it) 2009-03-10 2009-03-10 Elemento modulare in legno per la realizzazione di pareti.
ITMC2009A000044 2009-03-10

Publications (1)

Publication Number Publication Date
WO2010102927A1 true WO2010102927A1 (fr) 2010-09-16

Family

ID=41228734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/052656 WO2010102927A1 (fr) 2009-03-10 2010-03-03 Élément modulaire en bois pour réaliser des parois

Country Status (2)

Country Link
IT (1) ITMC20090044A1 (fr)
WO (1) WO2010102927A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743422A3 (fr) * 2012-12-14 2015-11-18 Wolfgang Gebetsroither Module de construction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744507A1 (fr) 1995-04-07 1996-11-27 Josef Kolb Module de construction pour constructions planes, notamment murs
US20070175158A1 (en) * 2006-01-04 2007-08-02 Cope Ted E Timber end-joint

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1377891A (en) * 1918-03-22 1921-05-10 Eugene V Knight Wooden beam
CH544199A (de) * 1972-04-11 1973-11-15 Kistler Laurenz Stegträger aus Holz, insbesondere Schalungsträger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0744507A1 (fr) 1995-04-07 1996-11-27 Josef Kolb Module de construction pour constructions planes, notamment murs
US20070175158A1 (en) * 2006-01-04 2007-08-02 Cope Ted E Timber end-joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2743422A3 (fr) * 2012-12-14 2015-11-18 Wolfgang Gebetsroither Module de construction

Also Published As

Publication number Publication date
ITMC20090044A1 (it) 2010-09-11

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