FR2549878A1 - Device and method for loft conversion. - Google Patents
Device and method for loft conversion. Download PDFInfo
- Publication number
- FR2549878A1 FR2549878A1 FR8312681A FR8312681A FR2549878A1 FR 2549878 A1 FR2549878 A1 FR 2549878A1 FR 8312681 A FR8312681 A FR 8312681A FR 8312681 A FR8312681 A FR 8312681A FR 2549878 A1 FR2549878 A1 FR 2549878A1
- Authority
- FR
- France
- Prior art keywords
- trusses
- farms
- reinforcing
- old
- bolting
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
- E04G23/027—Loft conversion by truss modification
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
La présente invention concerne un dispositif et un procédé permettant de modifier la charpente d'une habitation en vue de transformer les combles perdus en combles aménageables. The present invention relates to a device and a method making it possible to modify the frame of a dwelling in order to transform the lost attic into convertible attic.
L'invention s'applique en particulier aux maisons individuelles dont la charpente est constituée de fermettes légères en forme de W, destinées à supporter la toiture, qui n'offrent pas une résistance suffisante pour reoevoir les surcharges consécutives à un éventuel amdnagement des combles;
Actuellement, 50 % des maisons individuelles sont munies de charpentes en fermettes préfabriquées comportant un entrait princi- pal non porteur, deux arbalétriers et des fiches en forme de W.The invention applies in particular to individual houses, the frame of which consists of light W-shaped small trusses, intended to support the roof, which do not offer sufficient resistance to receive the overloads resulting from a possible attic development;
Currently, 50% of single-family homes are fitted with prefabricated farmhouse frames with a main non-loadbearing entrance, two crossbowmen and W-shaped plugs.
Ce type de construction de charpente ne se prOte évidemment pas a un aménagement ultérieur des combles, sans renforcement préalable des entraits, ni modification des fiches. This type of frame construction obviously does not lend itself to further development of the attic, without prior reinforcement of the ties, or modification of the sheets.
Différents procédés ont été mis au point pour faciliter cette transformation de la charpente en vue de l'aménagement des combles0
Parmi ceux-ci, on peut citer celui décrit dans le brevet fran çais Xc 2.491.111 qui se caractérise principalement par la mise en place de poutres de renforcement et de soutien horizontales reposant sur les murs porteurs, la pose d'un plancher reposant sur les dites poutres, la mise en place d'éléments do renforcement verticaux sur chaque ferme, latéralement par rapport & lespace habitable rocher ohé, puis la suppression des parties ae fiches de chaque forme, si- tuées dans l'espace habitable.Various processes have been developed to facilitate this transformation of the frame for the development of the attic0
Among these, there may be mentioned that described in the French patent Xc 2,491,111 which is mainly characterized by the installation of horizontal reinforcement and support beams resting on the load-bearing walls, the laying of a floor resting on said beams, the installation of vertical reinforcing elements on each truss, laterally in relation to the rocky living space ohé, then the removal of the parts of the sheets of each shape, located in the living space.
Comme on le voit, oe procédé oblige à effeotuer sur place la totalité des travaux nécessaires, en introduisant les matériaux par l'intérieur de la maison, sans aucune possibilité de préfabrication, contrairement aux méthodes utilisées pour réaliser la charpente a l'origine; ce qui rend le dit procédé assez oofteux. As we can see, this process requires all the necessary work to be carried out on site, introducing the materials from inside the house, without any possibility of prefabrication, unlike the methods used to make the frame originally; which makes this process quite expensive.
Le dispositif et le procédé selon l'invention, vise & remédier à ces inconvénients, car avec ceux-ci, en effet, les fermettes en W existantes sont renforcées latéralement par des fermettes en A, puis les parties de fiches d'origines situées dans l'espace habitable, sont éliminées,
Ainsi, les fermettes en A, de renfort, peuvent Outre préfabri- tuées et introduites transversalement dans la charpente après avoir découvert partiellement celle-ci, sans qu'il soit nécessaire de ere passer des matériaux par l'intérieur de la maison. The device and the method according to the invention aims to remedy these drawbacks, because with these, in fact, the existing W-shaped farms are laterally reinforced by A-farms, then the parts of origin cards located in living space are eliminated,
Thus, the A-shaped reinforcing trusses can, in addition, be prefabricated and inserted transversely into the frame after having partially discovered it, without it being necessary to pass materials through the interior of the house.
La juxtaposition des entraits et des arbalétriers des fermettes anciennes et nouvelles augmente la résistance à la flexion de 1' ensemble; ce qui permet la pose directe du plancher sur les entraits et d'envisager la création d'ouvertures latérales pour l'éclairage naturel et l'adration. The juxtaposition of ties and rafters of old and new farmhouses increases the flexural strength of the assembly; which allows the direct installation of the floor on the ties and to consider the creation of side openings for natural lighting and adration.
De plus, le dispositif selon l'invention, permet de limiter strictement le renforcement et la modification des fermettes exis- tantes à la partie des combles destinée à être aménagée. In addition, the device according to the invention makes it possible to strictly limit the reinforcement and the modification of existing farms to the part of the attic intended to be fitted out.
Le dispositif objet de l'invention, se caractérisé principalement en ce qu'il est constitué de fermettes préfabriquées de renfort, conçues pour permettre l'aménagement de combles, fixées par boulonnage ou tous autre moyens contre les fermettes existantes. The device object of the invention, characterized mainly in that it consists of prefabricated reinforcing farms, designed to allow the development of attic space, fixed by bolting or any other means against existing farms.
Ces fermettes de renfort ont la forme d'un trapèze dont lten- trait inférieur constitue la grande base et dont l'entrait supérieur constitue la petite base. Ceci, de façon b permettre le libre passage sous la poutre faîtière. These reinforcing farms have the shape of a trapezium whose lower line constitutes the large base and whose upper entry constitutes the small base. This so as to allow free passage under the ridge beam.
Les angles sltuds a la base des fermettes de renfort ont été coupés au niveau de la paroi externe des murs de l'habitation, de façon que la longueur de l'entrait inférieur corresponde à la largeur de la maison. Ceoi, afinPd'éliminer toute intervention au niveau des rives de la toiture. The angle sltuds at the base of the reinforcing trusses were cut at the level of the external wall of the walls of the dwelling, so that the length of the lower entry corresponded to the width of the house. Ceoi, in order to eliminate any intervention on the edges of the roof.
Le procédé objet de l'invention, consiste à découvrir partiellement la charpente au niveau des fermettes existantes, sans toucher au faite, ni aux rives de la toiture, à introduire les fermettes de renfort transversalement dans la charpente jusqu' & ce que les extrê- mités inférieures reposent sur les mnrs de soutènement, à boulonner les entraits, les arbalétriers et les fiches des anoiennes et des nouvelles fermettes les uns contre les autres, puis å éliminer les parties de fiches des anciennes fermettes situées & l'intérieur du volume de combles destiné a outre aménagé0
D'autres caractéristiques et avantages apparaîtront dans la description qui va suivre d'une toiture de pavillon dont les combles ont été rendus aménageables, en utilisant le dispositif et le procédé selon l'invention, donné à titre d'exemple non limitatif, au regard du dessin annexé représentant, en trait interrompu, la fermette de renfort fixée par boulonnage oontre l'ancienne fermette en W dont certaines parties des fiches ont été éliminées pour permettre l'am6- nagement des combles;;
En examinant le dessin, on remarque que la fermette d'origine constituée de l'entrait I, des arbalétriers 2 et 3, des grandes fiches 4 et 5 et des petites fiches 6 et 7, a été renforcée par une fermette préfabriquée constituée de l'entrait inférieur 8, des arba étriers 9 et IO, de lw-entrait supérieur II, des étais I2 et I3 et des fiches I4 et I5. Les deux fermettes sont réunies l'une b l'autre par les boulons I6 b 29. Les estrêmités de l'entrait 8 de la fermette de renfort repose sur le haut des murs 30 et 31 et viennent à l'aplomb de la paroi externe de ceux-ei. The process which is the subject of the invention consists in partially discovering the frame at the level of the existing farmhouses, without touching the roof or the edges of the roof, introducing the reinforcement farmhouses transversely into the frame until the ends lower units rest on the retaining minutes, bolting the ties, the crossbowmen and the files of the anoiennes and the new small farms against each other, then to eliminate the parts of the files of the old small farms located inside the volume of roof spaces intended for further furnished0
Other characteristics and advantages will appear in the following description of a pavilion roof, the attic of which has been made convertible, using the device and the method according to the invention, given by way of nonlimiting example, with regard to the accompanying drawing showing, in broken lines, the reinforcing farm fastened by bolting against the old W-shaped farmhouse, some parts of the sheets of which have been eliminated to allow the attic to be arranged;
By examining the drawing, we note that the original farmhouse made up of entry I, crossbowmen 2 and 3, large boards 4 and 5 and small boards 6 and 7, has been reinforced by a prefabricated farmhouse made up of l 'lower entry 8, arba stirrups 9 and IO, lw-upper entry II, props I2 and I3 and plugs I4 and I5. The two farms are joined to each other by the bolts I6 b 29. The ends of the entry 8 of the reinforcement farm rests on the top of the walls 30 and 31 and come directly above the external wall of these.
En se reportant au dessin, on remarque que, compte-tenu de la forme trapézotdale des fermes de renfort et de la longueur de l'en- trait 8 qui constitue leur base, il est aisé de l'introduire dans la charpente en ne découvrant celle-ci que partiellement, tant dans le sens horizontal que dans le sens vertical; ce qui élimine toute intervention au niveau du faite de la toiture et de ses rives. Referring to the drawing, it is noted that, taking into account the trapezoidal shape of the reinforcing trusses and the length of the line 8 which constitutes their base, it is easy to introduce it into the frame while not discovering this only partially, both horizontally and vertically; which eliminates any intervention at the level of the roof and its edges.
Il suffit ensuite de laisser reposer ces fermes de renfort sur le sommet des murs latéraux 30 et 31, puis d'assujettir les anciennes fermes aux fermes de renfort par des moyens de fixation et de serrage tels que les boulons I6 à 29, par exemple. It then suffices to allow these reinforcement trusses to rest on the top of the side walls 30 and 31, then to subject the old trusses to the reinforcement trusses by means of fixing and tightening such as the bolts I6 to 29, for example.
Ce renforcement étant effe"Ctu8, il ne reste plus qu'à éliminer la partie des fiches 4, 5, 6 et 7,- des anciennes fermes, située dans le volume à aménager. This reinforcement being effe "Ctu8, it only remains to eliminate the part of files 4, 5, 6 and 7, - of the old farms, located in the volume to be fitted out.
La charpente se trouve ainsi renforcée, tant au niveau des entraits que des arbalétriers, ce qui permet d'envisager un aménagement de combles dans n'importe quelle partie de la toiture, puisque des ouvertures latérales, du type ohien assis, peuvent être réalisées. The frame is thus reinforced, both in terms of ties and rafters, which makes it possible to envisage an attic arrangement in any part of the roof, since lateral openings, of the sitting Ohian type, can be made.
On remarquera que le dispositif et le procédé selon l'invention se prêtent sans restriction à la préfabrication et que leur utilisation diminue considérablement les frais de main d'oeuvre. It will be noted that the device and the method according to the invention lend themselves without restriction to prefabrication and that their use considerably reduces labor costs.
Le fait que les travaux de transformation se fassent directement par la toiture, sans qu'il soit nécessaire de passer par l'intérieur de la maison constitue aussi un avantage non négligeable. The fact that the transformation works are done directly by the roof, without the need to go through the interior of the house is also a significant advantage.
Le dispositif et le procédé selon l'invention, sont destinés principalement å l'aménagement de combles dans des pavillons ou des maisons individuelles. The device and method according to the invention are intended mainly for the development of attics in pavilions or individual houses.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8312681A FR2549878B1 (en) | 1983-07-29 | 1983-07-29 | DEVICE AND METHOD FOR FITTING UP ROOFS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8312681A FR2549878B1 (en) | 1983-07-29 | 1983-07-29 | DEVICE AND METHOD FOR FITTING UP ROOFS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2549878A1 true FR2549878A1 (en) | 1985-02-01 |
FR2549878B1 FR2549878B1 (en) | 1985-12-20 |
Family
ID=9291311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8312681A Expired FR2549878B1 (en) | 1983-07-29 | 1983-07-29 | DEVICE AND METHOD FOR FITTING UP ROOFS |
Country Status (1)
Country | Link |
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FR (1) | FR2549878B1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588590A1 (en) * | 1985-10-14 | 1987-04-17 | Lebrun Alain | Self-supporting box element for lost roof spaces |
FR2589914A2 (en) * | 1985-10-14 | 1987-05-15 | Lebrun Alain | Truss with load-bearing main tie used to change the slope |
FR2589913A2 (en) * | 1985-10-14 | 1987-05-15 | Lebrun Alain | Truss with load-bearing main tie without dragon beam |
FR2592905A1 (en) * | 1985-10-14 | 1987-07-17 | Lebrun Alain | Truss with load-bearing tie-beam used to change the slope |
FR2650019A1 (en) * | 1989-07-19 | 1991-01-25 | Jacob Structures Bois Entr | Method for converting industrially produced timber frames with lost roof space into an attic for dwelling purposes by adding industrially manufactured timber elements |
FR2789424A1 (en) * | 1999-02-10 | 2000-08-11 | Christophe Roland Mari Legrand | Roof structure conversion, for building, enables loft or attic space to be used as rooms and has floors with low side-walls on either side |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491111A1 (en) * | 1980-10-01 | 1982-04-02 | Harnois Georges | Reinforcement for roofing timbers - has horizontal reinforcing beams with vertical supports and temporary diagonal braces |
-
1983
- 1983-07-29 FR FR8312681A patent/FR2549878B1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2491111A1 (en) * | 1980-10-01 | 1982-04-02 | Harnois Georges | Reinforcement for roofing timbers - has horizontal reinforcing beams with vertical supports and temporary diagonal braces |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588590A1 (en) * | 1985-10-14 | 1987-04-17 | Lebrun Alain | Self-supporting box element for lost roof spaces |
FR2589914A2 (en) * | 1985-10-14 | 1987-05-15 | Lebrun Alain | Truss with load-bearing main tie used to change the slope |
FR2589913A2 (en) * | 1985-10-14 | 1987-05-15 | Lebrun Alain | Truss with load-bearing main tie without dragon beam |
FR2592905A1 (en) * | 1985-10-14 | 1987-07-17 | Lebrun Alain | Truss with load-bearing tie-beam used to change the slope |
FR2650019A1 (en) * | 1989-07-19 | 1991-01-25 | Jacob Structures Bois Entr | Method for converting industrially produced timber frames with lost roof space into an attic for dwelling purposes by adding industrially manufactured timber elements |
FR2789424A1 (en) * | 1999-02-10 | 2000-08-11 | Christophe Roland Mari Legrand | Roof structure conversion, for building, enables loft or attic space to be used as rooms and has floors with low side-walls on either side |
Also Published As
Publication number | Publication date |
---|---|
FR2549878B1 (en) | 1985-12-20 |
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ST | Notification of lapse |