FR2472064A1 - Roofing truss for building - includes beams made up of interconnected thin sheet-iron tubes of semicircular cross-section - Google Patents
Roofing truss for building - includes beams made up of interconnected thin sheet-iron tubes of semicircular cross-section Download PDFInfo
- Publication number
- FR2472064A1 FR2472064A1 FR7931560A FR7931560A FR2472064A1 FR 2472064 A1 FR2472064 A1 FR 2472064A1 FR 7931560 A FR7931560 A FR 7931560A FR 7931560 A FR7931560 A FR 7931560A FR 2472064 A1 FR2472064 A1 FR 2472064A1
- Authority
- FR
- France
- Prior art keywords
- thin sheet
- profile
- elements
- device characterized
- sheet metal
- 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- Withdrawn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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/366—Connecting; Fastening by closing the space between the slabs or sheets by gutters, bulges, or bridging elements, e.g. strips
-
- 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
- E04B7/026—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of prefabricated modules, e.g. box-like or cell-like units
-
- 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
- E04B7/08—Vaulted roofs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Les dispositions de structure en tôle mince précontrainte ou autocontrainte ont fait l'objet de différents brevets. Rappelons, en particulier, que ces techniques consistent, pour des éléments en tôle précontrainte, a utiliser des tôles minces, déformées en forme de cylindre à concavité dirigée vers le haut, et raidies sur les bords par des profilés coulissant librement. The structural arrangements in pre-stressed or self-stressed thin sheet metal have been the subject of various patents. Let us recall, in particular, that these techniques consist, for prestressed sheet elements, of using thin sheets, deformed in the shape of a cylinder with concavity directed upwards, and stiffened on the edges by sections sliding freely.
La précontrainte consiste à tendre la tôle en prenant appui sur le profilé. Prestressing consists in tensioning the sheet by resting on the profile.
Dans le système autocontraint, on associe des éléments en tôle mince autoportants avec des arbalétriers de forme triangulaire. In the self-restraining system, we associate self-supporting thin sheet metal elements with crossbows of triangular shape.
L'autocontrainte est assurée par la réaction de l'arbalétrier qui provoque une traction dans la tôle mince. Self-stressing is ensured by the reaction of the crossbowman which causes traction in the thin sheet.
L'effort de traction étant excentré par rapport au centre de gravité de l'élément en tôle mince, permet de compenser une partie des moments dûs aux charges directement appliquées. The tensile force being eccentric relative to the center of gravity of the thin sheet metal element, makes it possible to compensate for part of the moments due to the loads directly applied.
Dans le but d'améliorer la technique, il est possible de remplacer l'arbalétrier en charpente traditionnelle par un élément en tôle mince qui à ce moment deviendra comprimé au lieu d'être tendu. In order to improve the technique, it is possible to replace the traditional crossbowman with a thin sheet metal element which at that time will become compressed instead of being stretched.
En conservant des éléments en tôle mince de même forme cylindrique, à concavité dirigee vers le haut, on constate qu'en assurant la liaison par des nervures situées sur le bord des tôles, l'effort de compression d'ensemble va provoquer un moment fléchissant qui sera de même sens que le moment fléchissant des forces appliquées. By keeping elements in thin sheet of the same cylindrical shape, with concavity directed upwards, it is noted that by ensuring the connection by ribs located on the edge of the sheets, the overall compression force will cause a bending moment. which will have the same meaning as the bending moment of the applied forces.
Ainsi donc, alors que dans le système autocontraint appliqué aux élé- ments tendus, des moments fléchissants dûs à l'autocontrainte sont opposés aux moments fléchissants dûs aux charges verticales, on constate que l'autocontrainte appliquée à des éléments comprimés se traduit au contraire par un accroissement du moment dû aux charges verticales. Thus, while in the self-stressing system applied to tensioned elements, bending moments due to self-stressing are opposite to the bending moments due to vertical loads, we note that self-stressing applied to compressed elements results on the contrary by an increase in moment due to vertical loads.
Pour éviter le cumul des moments fléchissants de même sens, il est alors indispensable de prévoir un système permettant d'éviter la transmission des efforts de compression sur la tôle constituant l1élément comprimé. To avoid the accumulation of bending moments in the same direction, it is then essential to provide a system making it possible to avoid the transmission of the compressive forces on the sheet forming the compressed element.
Ce dispositif consiste à transmettre l'effort de compression à un profilé qui est toujours placé dans le joint des éléments en tôle mince mais qui est désolidarise des tôles elles-mêmes. This device consists in transmitting the compression force to a profile which is always placed in the joint of the thin sheet metal elements but which is separated from the sheets themselves.
Le dessin joint à la présente description fait mieux comprendre le dispositif. The drawing attached to the present description makes the device better understood.
Sur la figure 1, on a représenté, en élévation, un élément en tôle mince, repère 1, de forme sensiblement horizontale. En repère 2, ona -- repré- senté deux éléments en tôle mince formant les deux côtés d'un triangle, et, en repère 3, une suspente venant soutenir l'élément repère 1 au milieu de la portée. In Figure 1, there is shown, in elevation, a thin sheet member, reference 1, of substantially horizontal shape. In item 2, we have - two elements in thin sheet metal forming the two sides of a triangle, and, in item 3, a hanger supporting the item item 1 in the middle of the span.
La figure 2 représente la coupe de l'élément repère 1, où l'on reconnaît les tôles minces repère 4 et les raidisseurs repère 5. FIG. 2 represents the section of the element mark 1, where the thin sheets mark 4 are recognized and the stiffeners mark 5.
Sur la figure 3, on a représenté la coupe des éléments repère 2 ; on retrouve les tôles minces en repère 6, les raidisseurs en repère 7 et le profilé qui reprend les efforts de compression en repère 8. Ce profilé est lié au raidisseur par les agrafes représentées sur la figure 4. On remarquera que ces agrafes permettent de solidariser les profilés 8 avec les profilés 7. In Figure 3, there is shown the section of the reference elements 2; we find the thin sheets in reference 6, the stiffeners in reference 7 and the profile which takes up the compression forces in reference 8. This profile is linked to the stiffener by the staples shown in FIG. 4. It will be noted that these staples make it possible to secure profiles 8 with profiles 7.
Ces profilés 7-sont eux-mêmes solidarisés avec la tôle par un procédé connu, boulons par exemple. These profiles 7 are themselves secured to the sheet by a known process, bolts for example.
La suspente repère 3 sera reliée directement au profilé 8. The reference line 3 will be directly connected to the profile 8.
De même, ce profilé 8 viendra se fixer à ses deux extrémités basses sur les profilés repère 5 de l'onde repère 1. Likewise, this profile 8 will come to be fixed at its two low ends on the profile marks 5 of the wave reference 1.
De cette façon, on constate que l'effort de compression sera transmis uniquement au profile 8. In this way, it can be seen that the compression force will be transmitted only to profile 8.
Mais la présence des agrafes reliant le profilé 8 aux ondes permettra d'éviter le flambement de ce profilé 8 grâce à la présence des tôles repère 6, de la même manière que dans le procédé des ondes précontraintes déjà bre veté, on évite le flambement du profilé par la liaison des profilés raidisseurs avec la tôle. But the presence of staples connecting the profile 8 to the waves will prevent buckling of this profile 8 thanks to the presence of the reference sheets 6, in the same way as in the pre-stressed wave process already patented, the buckling of the profile is avoided. profiled by the connection of the stiffening profiles with the sheet.
I1 est à noter que les tôles repère 2 travailleront en flexion comme une onde précontrainte, les profilés 7 étant reliés à leur extrémité sur la tôle repère 6 par des ancrages appropriés. It should be noted that the reference sheets 2 will work in bending like a prestressed wave, the profiles 7 being connected at their end to the reference sheet 6 by suitable anchors.
La figure 5 représente le détail d'une agrafe, ces agrafes étant disposées alternativement dans un sens et dans l'autre. FIG. 5 represents the detail of a staple, these staples being arranged alternately in one direction and in the other.
On mettra en place une première agrafe, puis on engagera la deuxième agrafe à une certaine distance pour pouvoir déformer le profilé ; enfin, on fera glisser cette deuxième agrafe contre la première, ce qui provoquera l'emprisonnement des deux profilés et du tube. We will put in place a first clip, then we will engage the second clip at a certain distance to be able to deform the profile; finally, we will slide this second clip against the first, which will cause the imprisonment of the two sections and the tube.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7931560A FR2472064A1 (en) | 1979-12-20 | 1979-12-20 | Roofing truss for building - includes beams made up of interconnected thin sheet-iron tubes of semicircular cross-section |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7931560A FR2472064A1 (en) | 1979-12-20 | 1979-12-20 | Roofing truss for building - includes beams made up of interconnected thin sheet-iron tubes of semicircular cross-section |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2472064A1 true FR2472064A1 (en) | 1981-06-26 |
Family
ID=9233122
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7931560A Withdrawn FR2472064A1 (en) | 1979-12-20 | 1979-12-20 | Roofing truss for building - includes beams made up of interconnected thin sheet-iron tubes of semicircular cross-section |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2472064A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003275A1 (en) * | 1982-03-16 | 1983-09-29 | Edvin Lindell | Method of bearing a metal sheet roof and roof structure for carrying out the method |
-
1979
- 1979-12-20 FR FR7931560A patent/FR2472064A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003275A1 (en) * | 1982-03-16 | 1983-09-29 | Edvin Lindell | Method of bearing a metal sheet roof and roof structure for carrying out the method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6026613A (en) | Truss arch for fabric covered buildings and the like | |
JPS61502697A (en) | Large cross-section conduit for burial | |
FR2472064A1 (en) | Roofing truss for building - includes beams made up of interconnected thin sheet-iron tubes of semicircular cross-section | |
US2632538A (en) | Building structure | |
JP2015121287A (en) | Pipe material fixing saddle | |
FR2672326A1 (en) | Device for the erecting of roofing formed by bent one-piece metal pans (troughs) and by pantographically deployed supports, and the resulting product | |
JPH0132397B2 (en) | ||
KR200385464Y1 (en) | jointing apparatus of corrugate steel pipes | |
US4805855A (en) | Bar hanger for hanging conduits or the like | |
JPH07247513A (en) | Clamp structure for fastening cable intermediate part | |
US7823361B2 (en) | Conduit holder for use with a metal stud | |
US2548758A (en) | Roof structure | |
KR200443458Y1 (en) | Clamp for pipes and construction for connecting pipes using the same | |
JP4105219B1 (en) | Greenhouse roof structure | |
FR3103245A1 (en) | Device for connecting at least one electric cable and at least one conduit to at least one support, aircraft comprising at least one such connecting device | |
FR2511757A2 (en) | PIPE TO BE INSTALLED IN THE FLOOR OF A FLOOR AND IN PREFABRICATED ELEMENTS | |
JP3065940B2 (en) | Metal roof support structure | |
SU1742494A1 (en) | Pipe for mechanical ventilation system | |
FR2940337A1 (en) | Metallic joist for forming floor of building, has connection strip whose upper support comprises fixation tabs fixed on sheath, where strip is dimensioned so as to slide inside sheath before fixation on walls of sheath | |
CN219888902U (en) | Shock attenuation, resistant pipeline fixing device who waits | |
RU2181818C2 (en) | Arch bearing joint | |
RU60100U1 (en) | FASTENING AN ARCH FROM METAL CORRUGATED STRUCTURES TO THE FOUNDATION (OPTIONS) | |
RU2049872C1 (en) | Assembled arched construction | |
RU2072470C1 (en) | Crimping clip | |
FI58824C (en) | SLANGFOERBINDNING SAERSKILT FOERBINDNING FOER GRUVSLANGAR |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Withdrawal of published application |