FR2471460A1 - Wooden roofing purlin assembly - has two interdependent semi-purlins with chamfered ends connected end to end with adjacent purlin - Google Patents
Wooden roofing purlin assembly - has two interdependent semi-purlins with chamfered ends connected end to end with adjacent purlin Download PDFInfo
- Publication number
- FR2471460A1 FR2471460A1 FR7931620A FR7931620A FR2471460A1 FR 2471460 A1 FR2471460 A1 FR 2471460A1 FR 7931620 A FR7931620 A FR 7931620A FR 7931620 A FR7931620 A FR 7931620A FR 2471460 A1 FR2471460 A1 FR 2471460A1
- Authority
- FR
- France
- Prior art keywords
- purlins
- purlin
- semi
- assembly
- interdependent
- 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.)
- Granted
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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
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
- E04B7/022—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames
- E04B7/024—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames the trusses or frames supporting load-bearing purlins, e.g. braced purlins
-
- 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
- E04C3/14—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members with substantially solid, i.e. unapertured, web
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- 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)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
La présente invention concerne le domaine du bâtiment, en particulier de la charpente, et a pour objet une panne permettant un assemblage par aboutement. The present invention relates to the field of building, in particular the framework, and relates to a breakdown allowing assembly by abutment.
Actuellement, les pannes utilisées dans la construction sont de trois types, à savoir les pannes traditionnelles, les pannes en cantilevers, et les pannes croisées. Currently, the purlins used in construction are of three types, namely traditional purlins, cantilever purlins, and cross purlins.
Les pannes traditionnelles s'étendent de poutre à poutre, ou de ferme à ferme, mais elles nécessitent cependant des sections importantes, donc beaucoup de matière. En outre, ces pannes sont soumises à des déformations importantes. Traditional purlins extend from beam to beam, or from farm to farm, but they however require large sections, therefore a lot of material. In addition, these failures are subject to significant deformation.
Les pannes en cantilevers sont des pannes, dont les joints sont effectués en dehors des appuis, de manière à créer un moment négatif sur ces derniers, et ainsi, à soulager le moment positif en travée. Toutefois, dans une construction utilisant de telles pannes, il subsiste des difficultés de mise en place, du fait de la position du joint en travée et la stabilité n'est pas toujours assurée. En outre, le contr8le des déformations, en tenant compte des déformations intrinsèques des différentes pièces de bois est difficile à réaliser, de sorte qu'on obtient une mauvaise rectitude, qui entraîne des perturbations sur les couvertures. Cantilever purlins are purlins, the joints of which are made outside the supports, so as to create a negative moment on the latter, and thus, to relieve the positive moment in span. However, in a construction using such breakdowns, there remain difficulties in positioning, due to the position of the span joint and stability is not always guaranteed. In addition, the control of deformations, taking into account the intrinsic deformations of the different pieces of wood is difficult to achieve, so that a bad straightness is obtained, which causes disturbances on the covers.
Les pannes croisées sont généralement en appui sur ferme ou sur poutre, de sorte que leur section est double sur appuis, et à section équivalente, les déformations sont fortement réduites. De plus, ces pannes permettent de réaliser un bon alignement. Crossed purlins are generally supported on a truss or on a beam, so that their cross-section is double on supports, and with equivalent cross-section, the deformations are greatly reduced. In addition, these failures allow for good alignment.
Cependant, la réalisation de telles pannes nécessite, du fait de leur chevauchement, des bois de grande longueur. En outre, la disposition des pannes en quinconce est peu esthétique, et leur solidarisation mutuelle au niveau des extrémités du chevauchement est délicate à réaliser, du fait des conditions d'accès difficiles en travée. However, the realization of such purlins requires, because of their overlap, long timber. In addition, the arrangement of the staggered purlins is unattractive, and their mutual joining at the ends of the overlap is difficult to achieve, due to the difficult access conditions in the span.
La présente invention a pour but de pallier ces inconvé nient s. The object of the present invention is to overcome these drawbacks.
Elle a, en effet, pour objet une panne permettant un assemblage par emboitement, essentiellement constituée par deux demi-pannes assemblées avec décalage, par clouage, par collage, ou par vissage, et présentant chacune à ses extrémités une coupe biaise identique, ces coupes biaises étant inversées l'une par rapport à l'autre. It has, in fact, the object of a breakdown allowing assembly by interlocking, essentially constituted by two half-breakdowns assembled with offset, by nailing, by gluing, or by screwing, and each having at its ends an identical bias cut, these cuts bias being reversed with respect to each other.
L'invention sera mieux comprise grace à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence au dessin schématique annexé, dont la figure unique est une vue partielle en perspective d'une panne conforme à 1 'in- vention. The invention will be better understood from the following description, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawing, the single figure of which is a partial view. in view of a failure in accordance with the invention.
-La panne 1 reposant sur une poutre 2 est constituée par deux demi-pannes 3 et 4 assemblées par superposition ou par accollement, avec décalage, par collage, par vissage, par clouage, ou par d'autres moyens, et présentant chacune, à ses extrémités, une coupe biaise identique 5 et 6. Comme le montre le dessin annexé, et conformément à l'invention, ces coupes biaises 5 et 6 sont inversées l'une par rapport à l'autre, de manière à permettre une continuité pratiquement parfaite des pannes. En effet, du fait du décalage des extrémités des demipannes, et de leur coupe biaise, l'aboutement de deux pannes successives permet une reconstitution complète de section en appui ou en travée, donc aux endroits les plus sollicités. -The purlin 1 resting on a beam 2 is constituted by two half-purlins 3 and 4 assembled by superposition or by joining, with shift, by gluing, by screwing, by nailing, or by other means, and each having, its ends, an identical bias cut 5 and 6. As shown in the appended drawing, and in accordance with the invention, these bias cuts 5 and 6 are inverted with respect to each other, so as to allow continuity practically perfect breakdowns. Indeed, due to the offset of the ends of the half valves, and their bias cut, the abutment of two successive failures allows a complete reconstruction of the supporting or span section, therefore in the most stressed places.
Conformément à une variante de réalisation de l'invention, les coupes biaises 5 et 6 peuvent présenter un angle différent de la perpendiculaire par rapport à l'axe longitudinal des demi-pannes, et les coupes biaises d'une même demi-panne sont parallèles entre-eues. In accordance with an alternative embodiment of the invention, the bias cuts 5 and 6 may have an angle different from the perpendicular with respect to the longitudinal axis of the half-purlins, and the bias cuts of the same half-purlin are parallel in between.
Il est également possible de munir les extrémités des demi-pannes de profils permettant un assemblage par coopération de forme, ou d'organes d'assemblage. It is also possible to provide the ends of the half-purlins with profiles allowing assembly by form cooperation, or assembly members.
L'assemblage de pannes au joint peut être effectué rapidement et facilement, par vissage, par clouage, ou autre, des extrémités décalées des demi-pannes. En outre, il est possible, lors de l'assemblage de pannes conformes à l'invention, d'apparier des bois dont les déformations se contrarient. Compte tenu de l'épaisseur relativement faible des composants, il est possible de procéder à un séchage préalable des bois. The assembly of purlins to the joint can be carried out quickly and easily, by screwing, by nailing, or other, of the offset ends of the half-purlins. In addition, it is possible, during the assembly of purlins according to the invention, to match woods whose deformations contradict each other. Given the relatively small thickness of the components, it is possible to dry the wood beforehand.
La constitution de la panne conforme à l'invention, avec des coupes biaises inversées permet un chevauchement de ces dernières lors de l'assemblage de pannes, et ainsi une trans- mission des efforts bois sur bois, de sorte que l'effet de levier n'est pratiquement plus à assurer par des organes auxiliaires tels que des boulons ou des pointes. En outre, l'assemblage de pannes successives étant réalisé dans une portion de section non sollicitée, le maintien des demi-pannes d'extrémité face à face est assuré. The constitution of the purlin according to the invention, with inverted bias cuts allows the latter to overlap during the assembly of purlins, and thus a transmission of the forces from wood to wood, so that the leverage effect is practically no longer to be ensured by auxiliary members such as bolts or spikes. In addition, the assembly of successive purlins being carried out in a portion of unsolicited section, the maintenance of the end half-purlins face to face is ensured.
Le mode de réalisation de la panne selon l'invention peut également s'appliquer à la réalisation d'autres éléments de poutre. The embodiment of the purlin according to the invention can also be applied to the production of other beam elements.
Grâce à l'invention, il est possible de réaliser rapidement et simplement un bon alignement de pannes en réalisant, à flèche équivalente, une économie de bois. En outre, il est possible d'utiliser des bois aboutés, et la fabrication industrielle de pannes est favorisée. Thanks to the invention, it is possible to quickly and simply achieve good alignment of purlins by achieving, with equivalent deflection, a saving in wood. In addition, it is possible to use finger-jointed timber, and the industrial manufacture of purlins is favored.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté au dessin annexé. Des modifications restent possibles, sans sortir pour autant du domaine de protection de l'invention. Of course, the invention is not limited to the embodiment described and shown in the accompanying drawing. Modifications remain possible, without departing from the scope of protection of the invention.
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7931620A FR2471460A1 (en) | 1979-12-13 | 1979-12-13 | Wooden roofing purlin assembly - has two interdependent semi-purlins with chamfered ends connected end to end with adjacent purlin |
DE19803046303 DE3046303A1 (en) | 1979-12-13 | 1980-12-09 | A BANDAGE THROUGH POSSIBLE FATS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7931620A FR2471460A1 (en) | 1979-12-13 | 1979-12-13 | Wooden roofing purlin assembly - has two interdependent semi-purlins with chamfered ends connected end to end with adjacent purlin |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2471460A1 true FR2471460A1 (en) | 1981-06-19 |
FR2471460B1 FR2471460B1 (en) | 1985-01-18 |
Family
ID=9233134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7931620A Granted FR2471460A1 (en) | 1979-12-13 | 1979-12-13 | Wooden roofing purlin assembly - has two interdependent semi-purlins with chamfered ends connected end to end with adjacent purlin |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3046303A1 (en) |
FR (1) | FR2471460A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2624902A1 (en) * | 1987-12-21 | 1989-06-23 | Antignac Paul | Octagonal grids of glued laminated timber beams |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR695480A (en) * | 1930-05-12 | 1930-12-17 | Armand Beaumartin Sa Des Ets | Assembly of slats, battens and other pieces of wood |
US2475046A (en) * | 1947-02-15 | 1949-07-05 | Axel V Pedersen | Wood joint |
US2498180A (en) * | 1946-05-31 | 1950-02-21 | Axel V Pedersen | Wood joint |
DE842709C (en) * | 1951-10-31 | 1952-06-30 | Nailed beam-shaped wooden member | |
FR1165379A (en) * | 1956-11-20 | 1958-10-21 | Nemaho Nv | Joining beams |
US3830581A (en) * | 1972-05-26 | 1974-08-20 | Ecodyne Corp | Green wood joint |
US3910001A (en) * | 1974-06-10 | 1975-10-07 | Steel Web Corp | Beam connector |
-
1979
- 1979-12-13 FR FR7931620A patent/FR2471460A1/en active Granted
-
1980
- 1980-12-09 DE DE19803046303 patent/DE3046303A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR695480A (en) * | 1930-05-12 | 1930-12-17 | Armand Beaumartin Sa Des Ets | Assembly of slats, battens and other pieces of wood |
US2498180A (en) * | 1946-05-31 | 1950-02-21 | Axel V Pedersen | Wood joint |
US2475046A (en) * | 1947-02-15 | 1949-07-05 | Axel V Pedersen | Wood joint |
DE842709C (en) * | 1951-10-31 | 1952-06-30 | Nailed beam-shaped wooden member | |
FR1165379A (en) * | 1956-11-20 | 1958-10-21 | Nemaho Nv | Joining beams |
US3830581A (en) * | 1972-05-26 | 1974-08-20 | Ecodyne Corp | Green wood joint |
US3910001A (en) * | 1974-06-10 | 1975-10-07 | Steel Web Corp | Beam connector |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2624902A1 (en) * | 1987-12-21 | 1989-06-23 | Antignac Paul | Octagonal grids of glued laminated timber beams |
Also Published As
Publication number | Publication date |
---|---|
FR2471460B1 (en) | 1985-01-18 |
DE3046303A1 (en) | 1981-08-27 |
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ST | Notification of lapse |