FR2543190A1 - Method for erecting and assembling a timber roof frame - Google Patents

Abstract

The method forming the subject of the invention consists in the prefabrication of a roof frame divided into two parts. A lower part consists of elements contained from the side posts 4 whose spacing is ensured by reinforcing sole pieces 7 under the truss heels up to the level of the ties 9 on which rests the upper part via the collar ties up to the ridge pole.

Description

 The present invention relates to the construction of wooden frames for buildings with one or more floors, or single storey houses.

 Currently the different parts of a wooden frame for a house are mounted and assembled one after the other on the load-bearing walls. This implementation is made even more complex by the difficulties of moving in height on wooden beams, which often results in poor distribution of loads and thrusts.

 The framework method of the invention overcomes these drawbacks, in fact, the distribution of loads is done very easily as well as those of the thrusts. In addition, the reduction of a large number of parts facilitates handling and reduces the risk of accident.

 The process which is the subject of the invention consists in dividing the frame into two parts, a lower part consisting of the farm feet up to the level of the turned-up ties or under the false ties and an upper part consisting of the level of the turned-up ties at the ridge. The different parts making up each part are cut and assembled in the workshop. The positioning of the upper part on the lower part of the frame is carried out at the height of the ties rolled up through the molds.

This construction process fits on all roof slopes as well as on new or restored houses.

 This process allows the elimination of intermediate breakdowns and ridge failure, the battens and the creeping ceiling make the spacing up to the ridge. Also the cores can possibly be removed.

This process authorizes the use of a pe weft; putting the precut in the workshop of the different parts, according to straight lines for the same slope with the exception of the months which vary according to the width of the buildings,
Said method also allows various roof projections, such as cornices, cow-tail projections, conventional horizontal projections, etc.

 The accompanying drawings illustrate by way of nonlimiting example an embodiment of the method together with the description below.

 Figure 1 shows a side view, in elevation of the wooden frame.

 Figure 2 shows briefly the upper part of the frame, according to the profile of Figure 1, on a larger scale.

 Figure 3 shows on another scale, in section, the assembly of the upper part of a crossbowman on its lower part at the level of ltentrait upturned.

 Figure 4 briefly shows the lower part of the frame.

 FIG. 5 partially represents one side of the frame according to the arrow A shown in FIG.

 Figure 6 schematically shows a floor construction frame.

As represented by the association of the aforementioned figures, the method consists in first manually positioning the lower part of the frame (shown more particularly in Figures 4 and 5), before which are placed the joists 1 resting on the walls 2 load-bearing and carrying a floor 3, which joists 1 are spaced at a center distance identical to the lower parts of the rafters 5 to allow the port of the latter, which rafters 5 are supported by legs 4 whose spacings are provided by reinforcing flanges 7 under firm trusses, and on the outside are added cores 8, then the upper ends of the rafters 5 are assembled two by two with molds 9, then the upper part of the frame is laid by matching the upper parts crossbowmen 10 in the extension of the lower parts of the crossbowmen 5, and the upper parts of the crossbowmen 10 have ent upturned straps 11 which are positioned respectively in a handle 9, the latter is fixed by dowels 6 or by any other suitable means
The upper part of. the frame also includes punches 12 which can be provided with not shown struts.

 Then, the frame receives a creeping ceiling 17 on which is placed a counter-rafting 13, then an insulation 14 with a non-contiguous flight 15 and finally the covering 16.

 The insulation 14 in the top attic can be directly extended: ement on a horizontal ceiling 18, of course, the ceiling can be replaced by a floor for use in the attic.

 FIG. 6 represents a variant design of the construction to allow access to the attic rooms, the partition 19 rests on a floor 3 supported by joists 1, which partition 19 delimits with the partition 20 a space provided for a staircase, said partition 20 passes through the hopper, like the other two partitions 20.

 The spacing between the joists 1 is regular and corresponds to the spacing of the trusses between them, perrm; iitting at the feet of the rafters 5 to come to rest on the ends of said joists 1.

 The recommended center distance of 0.97 meters between each joist 1 allows the use of wood chipboard or other panels commonly sold commercially, which results in little falls.

 The present framework mounting method allows the installation of nasturtium skylight 21, and the production of croups, in the case of constructions with four slopes, is all the more simple since these are always the same elements.

 Particularly interesting applications of the process may lie in the assembly and restoration of wooden frames located in difficult to access places as well as in craft businesses with little means to devote to their mechanization. In all cases it can be particularly appreciated for its appearance of exposed beams.

Claims (5)

1) A method of assembling a wooden frame, characterized in that a lower part consisting of the farm feet up to the level of the upturned beams (11) is positioned on joists (1) carrying a floor (3), which joists (1) have a spacing equal to that of the rafters (5), which are joined in the upper part by molds (9) which carry the upper part of the frame until malting. 2) Method according to claim 1, characterized in that the upper part of the frame rests by the upturned ties (11) on the molds (9) of the lower part of said frame blocked by dowels (6). 3) Method according to claim 1, characterized in that the rafters of the lower part of the frame do not exceed the upturned ties. 4) Method according to claim 1, characterized in that the joists and upturned ties are placed according to a predetermined frame. 5) Method according to claim 1, characterized in that the feet of the rafters are consolidated by two distribution flanges in the case of adaptation to an existing floor.