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WO2015194924A1 - Rondin collé et son procédé de fabrication - Google Patents

Rondin collé et son procédé de fabrication Download PDF

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Publication number
WO2015194924A1
WO2015194924A1 PCT/LT2015/000001 LT2015000001W WO2015194924A1 WO 2015194924 A1 WO2015194924 A1 WO 2015194924A1 LT 2015000001 W LT2015000001 W LT 2015000001W WO 2015194924 A1 WO2015194924 A1 WO 2015194924A1
Authority
WO
WIPO (PCT)
Prior art keywords
glued
log
planks
boards
grooves
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.)
Ceased
Application number
PCT/LT2015/000001
Other languages
English (en)
Inventor
Tomas KAZLAUSKAS
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.)
Uab "dreamhouse"
Original Assignee
Uab "dreamhouse"
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 Uab "dreamhouse" filed Critical Uab "dreamhouse"
Publication of WO2015194924A1 publication Critical patent/WO2015194924A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
    • E04B2/701—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function
    • E04B2/702—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function with longitudinal horizontal elements
    • 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
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/122—Laminated

Definitions

  • the present invention belongs to building structural elements, specifically for logs used in timber house construction.
  • logs of hard pine solid wood are for construction of timber houses. Such wood logs are usually dried in kilns for 5 weeks at the temperature 40-60 °C until the residual moisture content does not exceed 20%. After drying, the balks are trimmed by hand or their outside surfaces are otherwise processed and cut-outs (gouges) are made in the corners of the balk connection to make the wall corners. Spacing between the log are filled with natural thermal insulation materials.
  • Such timber house is eco-friendly and aesthetic.
  • balk thickness (diameter) is finite, i.e. the necessary thickness may not always be achieved.
  • drying very thick balks is a rather lengthy and complicated process, because the solid core dries more slowly than the surface, so the balk tends to crook, gaps may appear reducing the tightness of the timber house; moreover, during drying, the surface of such balks tends to crack, in detriment to the aesthetic appearance of the walls and thermal properties.
  • the objective of the invention is to increase the thermal resistance of the eco-friendly log, to reduce its weight while maintaining strength and stability of the log and its resistance to temperature deformations, while facilitating the transportation and installation of logs.
  • the essence of the invention is that the timber is composed of five boards: middle (1), two outer (5) and two inner (6), of which the middle board (1) is cut out of the plank assembly glued in several layers in different directions (2), two outer (5) boards are rigidly bonded to the sides of the board (1) planks and two inner boards (6) are bonded to the cut planks.
  • plank assembly (2) of which cut the middle beam (1) is cut, is glued of planks (3), with longitudinal grooves (7) cut, with a width of up to 5 mm, and the spacing between the grooves of up to 1.5 cm.
  • the longitudinal grooves (7) in the planks (3) of the middle board (1) are cut from both sides of the plank asymmetrically to one another, and the depth of the grooves is chosen, but recommended for the entire thickness of the plank, leaving the uncut area (8) proportional to the width of the groove.
  • Planks (3) of the middle board (1) of the log are bonded together so that the longitudinal (7) grooves of one layer of planks form a right angle with the longitudinal (7) grooves other layer of planks, and the wood fibre of one layer of planks is perpendicular to the wood fibre of another layer of planks.
  • the outer (5) and inner boards (6) of the log are bonded to the middle board (1) so that they make a 45-degree angle with the wood fibre of the middle board (1).
  • the width of the middle board (1) is formed from the number of layers of planks so that after adding the outer boards (6), it matches the desired thickness of the log to be manufactured.
  • Longitudinal grooves can be made in the inner (6) and outer (5) boards of the log.
  • the inner (6) and outer (5) boards of the log have rabbets (9) and grooves (10) for the interlocking of the log.
  • the essence of the invention is that the log is glued of five boards, the middle board (1) of which is made of planks (3), on which the longitudinal grooves (7) are cut on both sides; such planks are glued with each other to panels, which are then cooled by criss-crossing one above the other so that the direction of the grooves (7) cut in the planks of one panel, and the direction of wood fibre on the planks is perpendicular to the direction of grooves (7) and wood fibre on the planks of the other panel, and the middle board (1) is cut from the layer block (2) at an angle of 45 degrees; the outer boards (5) of the log are rigidly glued to its planks and the inner boards (6) of the log are glued to the cut ends of the boards in such a way that the wood fibre of these boards and the wood fibre of the middle board (1) planks makes a 45-degree angle.
  • Grooves (7) in the planks of the middle board are cut on both sides of the plank asymmetrically in relation to each other, in a distance of up to 1.5 cm from each other, and the width of the grooves is up to 5 mm.
  • Grooves (7) in the planks of the middle board are cut throughout the thickness of the plank, even though uncut area (8) proportional to the width of the groove.
  • the thickness of the middle beam (1) is formed by increasing the number of the glued plank layers according to the desired thickness of the produced log, by gluing outer boards (5).
  • the height of the middle board (1) is made by cutting off a band of the desired with from the block of the glued plank panels (2) corresponding to the desired height of the log after adding the inner boards (6).
  • the rabbets (9) and the grooves (10) are made for locking the log on the surface of the bonded board.
  • Fig. 1 shows the general cross-sectional view of the log.
  • Fig. 2 shows the longitudinal side view of the log across the plank bonding line.
  • Fig. 3 shows the longitudinal view of the log from the side, in the middle of the plank.
  • Fig. 4 shows the longitudinal sectional view of the log from the top.
  • Fig. 5 illustrates the block of the glued plank panels.
  • the applied log is made of five boards, the middle board (1), two outer (5) boards, and two inner boards (6).
  • the middle board is cut from the block of the glued plank panels (2) interconnected with glue, with longitudinal grooves (7) with uncut areas in the planks (8) cut asymmetrically from both sides of its planks (3) and the planks are layered so that the grooves (7) of each layer and the fibre of those planks are perpendicular to the plank grooves (7) and the plank fibre of the other layer.
  • Groove (7) width is up to 5 mm, and the spacing between the grooves up to 1.5 cm. The groove depth is recommended across the thickness of the board, leaving the uncut area (8) proportional to the groove (7) width.
  • the outer (5) boards are glued to the surface of the planks of the cut inner board (1) and the inner boards (6) are glued to the cut ends of planks in such a way that they make a 45- degree angle with the wood fibre of the plank fibre of the middle board (1).
  • the inner (6) and outer (5) boards of the log have rabbets (9) and grooves (10) over the entire length of the log, for the interlocking of the log. Longitudinal grooves can be made in the inner and the outer boards of the log to increase the thermal insulation.
  • the applied log is made by gluing five wooden beams, where two outer balks (5) and two inner balks (6) are glued to the middle board (1).
  • the middle balk (1) is made of planks (3), in which asymmetric grooves (7) are cut on both sides of the plank, choosing the groove width up to 5 mm and the spacing between the grooves up to 1.5 cm.
  • the grooves are cut lengthwise the plank fibre across the plank thickness, leaving the uncut area (8) proportional to the groove width.
  • Planks (3) prepared in such a way are glued to each into panels. One panel is applied over the other by turning it 90 degrees so that the plank fibre and the grooves (3) of one panel are perpendicular to the fibre and the grooves (3) of the other panel.
  • the number of panels depends on the required thickness of the log. In order to produce a thicker log, more layers of panels are glued. The resulting encasing (2) of panels is cut into strips with the width depending on the required height of the log. The cut is made at an angle of 45 degrees in respect of the plank fibre.
  • the inner boards (6) are glued to the planks of the middle board (1) obtained in such a way and the outer boards (5) to the sides of the planks. These boards enclose the ends of the planks (3) of the middle beam (1 ) facilitating the subsequent processing of the log.
  • the outer (5) and inner boards (6) of the log are glued so that they make a 45-degree angle with the plank fibre of the middle board (1).
  • the resulting work piece is planered and milled, shaping it according to the desired profile.
  • the rabbets (9) and the grooves (10) are then made, to ensure the stability and tiredness of the longitudinal interlocking of the logs. Longitudinal grooves can be cut in the inner (6) and outer (5) boards of the log in order to increase the thermal resistance.
  • the construction of the ready-made log allows higher thermal resistance and resistance to deformation to the log.
  • the grooves (7) in the planks (3) are no larger than 5 mm, as only such grooves make the closed air chambers (10) in the middle board (1) without heat transfer by natural convection. Since air is the best thermal insulator, closed cameras with trapped air provide good thermal resistance of the log. Increasing the notches by more than 5 mm, the movement of air and the heat transfer by natural convection takes place in the air chambers (4) thereby reducing thermal resistance.
  • the optimal distance between the grooves is up to 1.5 cm and the uncut areas proportional to the width of the groove, according to technical capacity, are chosen, to ensure the uniform positioning of the grooves across the entire width of the plank and the panel.
  • the construction of the internal board is formed of planking, where one layer of wood fibre is placed in the direction perpendicular to the direction of the next layer, thus not only producing closed air chambers in the middle beam, but also increasing the stability of the beam, it's resistance to loads and deformations because of the better mechanical properties of timber in respect of the fibre are offset by poorer characteristics.
  • the applied log compared with the known (prototype) has higher thermal resistance (see Table 1). Because of its porous structure the log is much lighter and more resistant to deformation.
  • Table 1 shows that the applied log is characterised by 33% lower heat transfer coefficient and 41% higher thermal resistance, higher compressive strength and it is about 30% lighter and less conductive to sound.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Building Environments (AREA)

Abstract

La présente invention concerne un rondin collé et son procédé de fabrication, se rapportant au domaine de la construction d'éléments structuraux, en particulier pour des rondins utilisés dans la construction de maison en bois. Le rondin selon l'invention est caractérisé en ce qu'il présente une résistance thermique et une résistance à la déformation supérieures et en ce qu'il est suffisamment léger. Ledit rondin est obtenu par collage de cinq plaques, des chambres à air fermées étant formées dans la plaque centrale (1), qui sont obtenues à partir du bloc (2) de panneaux collés (3) coupant la plaque centrale à un angle de 45 degrés. Des rainures asymétriques (7) présentant une largeur inférieure ou égale à 5 mm sont découpées sur les deux côtés des planches comprenant la plaque centrale, les panneaux de planches étant collés à un angle de 90 degrés les uns par rapport aux autres. Les plaques externes (5) et internes (6) sont collées à la plaque centrale (1) de sorte que leur fibre de bois forme un angle de 45 degrés avec la fibre de bois de la plaque centrale (1).
PCT/LT2015/000001 2014-06-18 2015-02-03 Rondin collé et son procédé de fabrication Ceased WO2015194924A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LT2014084 2014-06-18
LT2014084A LT6264B (lt) 2014-06-18 2014-06-18 Klijuotas sienojas ir jo gamybos būdas

Publications (1)

Publication Number Publication Date
WO2015194924A1 true WO2015194924A1 (fr) 2015-12-23

Family

ID=52875737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/LT2015/000001 Ceased WO2015194924A1 (fr) 2014-06-18 2015-02-03 Rondin collé et son procédé de fabrication

Country Status (2)

Country Link
LT (1) LT6264B (fr)
WO (1) WO2015194924A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2852146C2 (ru) * 2024-05-15 2025-12-04 Николай Михайлович Мурзин Комбинированный деревянный брус

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007519A1 (fr) 1994-09-07 1996-03-14 Honkarakenne Oy Procede de preparation d'une poutre en bois
WO2006048945A1 (fr) 2004-11-08 2006-05-11 Michiru Imase Materiau de construction
CH701370A2 (de) * 2009-06-30 2010-12-31 Gisler Holzbau Verfahren zur Herstellung von Holz-Strukturelementen, ein Holz-Strukturelement und Lamellenelement.
WO2011090418A1 (fr) * 2010-01-21 2011-07-28 Oestling Mikael Eléments structuraux pour bâtiments
US20110203193A1 (en) 2010-02-19 2011-08-25 Rodney Robertson Laminated insulated timber for building construction
EP2492091A1 (fr) * 2011-02-28 2012-08-29 Denis De Luca Procédé pour travailler ou réaliser une fabrication en bois avec application de divers types de bois
US20120317907A1 (en) 2011-05-13 2012-12-20 Wrightman Ronald A Log with Thermal Break

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996007519A1 (fr) 1994-09-07 1996-03-14 Honkarakenne Oy Procede de preparation d'une poutre en bois
WO2006048945A1 (fr) 2004-11-08 2006-05-11 Michiru Imase Materiau de construction
CH701370A2 (de) * 2009-06-30 2010-12-31 Gisler Holzbau Verfahren zur Herstellung von Holz-Strukturelementen, ein Holz-Strukturelement und Lamellenelement.
WO2011090418A1 (fr) * 2010-01-21 2011-07-28 Oestling Mikael Eléments structuraux pour bâtiments
US20110203193A1 (en) 2010-02-19 2011-08-25 Rodney Robertson Laminated insulated timber for building construction
EP2492091A1 (fr) * 2011-02-28 2012-08-29 Denis De Luca Procédé pour travailler ou réaliser une fabrication en bois avec application de divers types de bois
US20120317907A1 (en) 2011-05-13 2012-12-20 Wrightman Ronald A Log with Thermal Break

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2852146C2 (ru) * 2024-05-15 2025-12-04 Николай Михайлович Мурзин Комбинированный деревянный брус

Also Published As

Publication number Publication date
LT6264B (lt) 2016-04-25
LT2014084A (lt) 2015-12-28

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