EP1105591A1 - Herstellungsverfahren eines faserverstärkten schichtkörpers insbesondere aus holz, sowie ein schichtkörper aus holz - Google Patents
Herstellungsverfahren eines faserverstärkten schichtkörpers insbesondere aus holz, sowie ein schichtkörper aus holzInfo
- Publication number
- EP1105591A1 EP1105591A1 EP99936222A EP99936222A EP1105591A1 EP 1105591 A1 EP1105591 A1 EP 1105591A1 EP 99936222 A EP99936222 A EP 99936222A EP 99936222 A EP99936222 A EP 99936222A EP 1105591 A1 EP1105591 A1 EP 1105591A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layers
- wooden
- fiber layer
- wood
- laminated body
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/10—Next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
- B27M3/0053—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally using glue
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
-
- 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
-
- 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
- E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
-
- 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
- E04C3/18—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with metal or other reinforcements or tensioning members
- E04C3/185—Synthetic reinforcements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/08—Reinforcements
Definitions
- the invention relates to a production method of a fiber-reinforced laminated body, in particular made of wood, in which at least one fiber layer and a connecting means, preferably glue, are brought onto a wooden part or between two wooden layers to be joined and are subsequently connected to one another; as well as a laminate.
- a connecting means preferably glue
- At least one fiber layer which is placed on the wooden part or between the wooden layers, is tensioned in at least one direction of its plane of expansion with a defined tensile force and is connected in this tensioned state to the one wooden part or to the wooden layers so that this fiber layer remains permanently under tension.
- FIG. 1 shows a perspective illustration of a laminated body according to the invention illustrated in cross section
- FIG. 3 shows a perspective illustration of a laminated body illustrated in cross section and composed of a plurality of wood layers
- FIG. 5 shows a schematic view of a method according to the invention for producing a laminated body before joining
- FIG. 8 shows a partial longitudinal section of the laminated body according to FIG. 7,
- FIG. 2 shows an embodiment variant of a laminated body 20 according to the invention, in which, in contrast to that according to FIG. 1, the two wooden layers 22, 24 are provided with identical width and length dimensions, but with different thicknesses.
- the effective tension of the fiber layer 15 in the loaded state of the layer body 20, for example in its bent state can be adjusted accordingly.
- FIG. 3 shows a laminated body 30 which has five equally thick wooden layers 32, 33, 34, 36, 37, between each of which a fiber layer 15 with a defined tension is assigned in its plane of expansion in the longitudinal and / or transverse direction.
- the layers of wood can either be connected one by one or all at the same time.
- FIG. 4 shows a further variant of a laminated body 40, which consists of a U-shaped wooden layer 44 and three wooden panels 42, which are embedded in the longitudinal groove 46 formed by the former. Between these wooden layers 42, 44, fiber layers 45, not shown in detail, are again provided in a tensioned state, which remain permanently tensioned by the hardened glue.
- FIG. 5 shows a schematic representation of a production device for producing a laminated body, for example one according to FIG. 1.
- the fiber layer 15 wound on a roll 51 is initially unrolled approximately over the length of the wooden layers 12, 14 and held at the end by clamping jaws 52, 53.
- the required clamping force can be generated either by moving these jaws 52, 53 or by correspondingly rotating the roller 51, the torque and thus the clamping force being advantageously measured on the roller.
- the wood layers 12, 14 are then pressed in the direction of the arrow against the band-shaped fiber layer, the connecting means 16 provided as glue being applied to the lower wood plate 14.
- the tension on the fiber layer is advantageously left until after the glue has hardened.
- this tension could be released by the jaws and the roller after pressing the plates together if the plates were pressed together so strongly that the tension remains in the fiber layer.
- the fiber layer 15 can be cut laterally flush with the wood panels.
- FIG. 6 illustrates a further tensioning variant of the fiber layer 15 between two wood layers 62, 64.
- the fiber layer 15 is here held laterally by jaws 61, 63 without being stretched. Due to the wave-shaped design of the surfaces 62 ', 64' of the wooden layers that come into contact, the laterally clamped fiber layer 15 is stretched when these wooden panels are pressed together and tensioned accordingly with a defined force.
- the layers of wood could also be profiled in a different way than wave-like, such as tooth-shaped, trapezoidal or otherwise.
- FIG. 7 illustrates a further bracing variant, in which the fiber layer 15 is guided through a loop 15 '' around a core beam 65, which is connected at the corresponding surfaces to cover layers 66.
- the fiber layer 15 is here at the ends of clamping jaws 62, 63 or a roller 61 without being tensioned, this core beam 65 is displaced in the direction of the arrow and tensions the fiber layer 15 on both sides by the semicircular guide element 69 attached to the end face thereof.
- the two outer cover layers 66 are made with the prestressed fiber layer 15 and the core beam 65 glued.
- FIGS. 9 to 11 show three further variants of joined wooden layers according to the invention, the fiber layers 75 laid and prestressed between these wooden layers being viewed in cross section not being arranged over the entire area but only in the outer region of the contacting surfaces of the wooden layers. Only in the embodiment according to FIG. 11, in which six lamellar wooden layers 96 lie one above the other, do the fiber layers 95 in the two outermost layer pairs extend over the entire joint area. rich, while the inner joints are only reinforced on the outside with a strip-like fiber layer 75 each. This division can be particularly advantageous when using such a laminated body in a column-like manner for the purpose of homogenizing the strengths or resilience to this column.
- these fiber layers 75 could be designed anywhere in these joints with freely selectable dimensions and prestresses.
- the individual fiber layers for a laminate could also be provided with different prestresses.
- the wood layers are preferably glued over the entire contact surfaces, but they could also only be bonded to the fiber layers with glue or the like.
- a bar is composed of four wooden parts 85, through which a crosswise arrangement of the contact surfaces is created. Again, the fiber layers 75 are only provided in the outer areas.
- the prestressing of the fiber layer could also be achieved by fixing it to a wood layer and then bending the latter so that the fiber layer is stretched by pressing the bent wood into the straight starting position when gluing.
- the fiber layer can in principle also be stretched by thermal and / or chemical prestressing.
- heated glue could cause thermal expansion on the fibers, which would then be stretched when the layers of wood are pressed together when they cool down.
- the warp thread under tension can be made high-strength, but the weft thread serving only as a stabilizer can be made of an inexpensive material.
- a yarn, thread, net, ribbon or the like can be used as the fiber layer as required.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH167198 | 1998-08-13 | ||
CH167198 | 1998-08-13 | ||
PCT/CH1999/000374 WO2000009830A1 (de) | 1998-08-13 | 1999-08-11 | Herstellungsverfahren eines faserverstärkten schichtkörpers insbesondere aus holz, sowie ein schichtkörper aus holz |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1105591A1 true EP1105591A1 (de) | 2001-06-13 |
Family
ID=4215891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99936222A Withdrawn EP1105591A1 (de) | 1998-08-13 | 1999-08-11 | Herstellungsverfahren eines faserverstärkten schichtkörpers insbesondere aus holz, sowie ein schichtkörper aus holz |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1105591A1 (de) |
AU (1) | AU5145399A (de) |
WO (1) | WO2000009830A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6217976B1 (en) * | 1999-10-22 | 2001-04-17 | Weyerhaeuser Company | Edge densified lumber product |
DE10102417A1 (de) * | 2001-01-11 | 2002-08-01 | Univ Dresden Tech | Verstärkung hölzerner Bauteile durch auflaminierte textile Strukturen |
DE10148181A1 (de) * | 2001-09-28 | 2003-06-12 | Holzbau Seufert Niklaus Gmbh | Leimholz |
DE102006051316A1 (de) * | 2006-10-31 | 2008-05-08 | Ernst Huber | Leimbinder mit Glasfaserverstärkung |
NO337441B1 (no) * | 2010-09-29 | 2016-04-11 | Arne Vaslag | Forspente bjelker av massive tverrsnitt og fremgangsmåte for tilvirkning av slik bjelke. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB969843A (en) * | 1962-07-24 | 1964-09-16 | Kalley Timber Dev Corp Proprie | Improvements in or relating to the manufacture of glued laminated timber products |
US3294608A (en) * | 1964-02-27 | 1966-12-27 | Peterson John | Method of prestressing a wood beam |
DE1952920A1 (de) * | 1968-10-22 | 1970-05-06 | Werner Zahlmann | Verfahren zur Herstellung von Platten,Brettern od.dgl. auf Grundlage von Holz |
US3783066A (en) * | 1971-09-29 | 1974-01-01 | R Myers | Reinforced structural member of fiber glass and method of making the same |
NO162124C (no) * | 1984-06-22 | 1989-11-08 | Arne Engebretsen | Forspent bjelke av trevirke. |
US5547729A (en) * | 1993-03-24 | 1996-08-20 | Tingley; Daniel A. | Glue-laminated wood structural member with synthetic fiber reinforcement |
US5744228A (en) * | 1994-03-04 | 1998-04-28 | Tingley; Daniel A. | Use of synthetic fibers in a glueline to increase resistance to sag in wood and wood composite structures |
-
1999
- 1999-08-11 WO PCT/CH1999/000374 patent/WO2000009830A1/de not_active Application Discontinuation
- 1999-08-11 EP EP99936222A patent/EP1105591A1/de not_active Withdrawn
- 1999-08-11 AU AU51453/99A patent/AU5145399A/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0009830A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU5145399A (en) | 2000-03-06 |
WO2000009830A1 (de) | 2000-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20010220 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20020311 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: METHOD FOR PRODUCING A FIBRE-REINFORCED LAMINATE, ESPECIALLY A WOOD LAMINATE, AND A WOOD LAMINATE |
|
RTI1 | Title (correction) |
Free format text: METHOD FOR PRODUCING A FIBRE-REINFORCED WOOD LAMINATE, AND A WOOD LAMINATE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20031122 |