FR2752257A1 - Concrete floor insulating system - Google Patents
Concrete floor insulating system Download PDFInfo
- Publication number
- FR2752257A1 FR2752257A1 FR9610173A FR9610173A FR2752257A1 FR 2752257 A1 FR2752257 A1 FR 2752257A1 FR 9610173 A FR9610173 A FR 9610173A FR 9610173 A FR9610173 A FR 9610173A FR 2752257 A1 FR2752257 A1 FR 2752257A1
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- France
- Prior art keywords
- concrete
- trellis
- insulating
- heel
- beams
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- 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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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/065—Light-weight girders, e.g. with precast parts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
Description
SYSTEME D'ISOLATION DE PLANCHERS BÉTON
COMPORTANT DES POUTRELLES EN TREILLIS MÉTALLIQUE
La présente invention a pour objet un système d'isolation de planchers béton comportant des poutrelles en treillis métallique.CONCRETE FLOOR INSULATION SYSTEM
INCLUDING METAL MESH BEAMS
The present invention relates to an insulation system for concrete floors comprising steel lattice beams.
Elle concerne le domaine industriel de la construction de bâtiments de tous types, et a pour objectif l'amélioration de l'isolation des planchers utilisant des poutres autoporteuses en treillis d'acier de type "WAREN" à talon, ce type de poutre étant constitué par un fer longitudinal supérieur et deux fers longitudinaux inférieurs reliés entre eux par des diagonales soudées formant un treillis léger, les fers inférieurs étant noyés dans un talon de béton. It concerns the industrial field of construction of buildings of all types, and aims to improve the insulation of floors using self-supporting steel truss beams of the "WAREN" type with heel, this type of beam being made up by an upper longitudinal iron and two lower longitudinal irons linked together by welded diagonals forming a light lattice, the lower irons being embedded in a concrete heel.
Les armatures de type "WAREN" sont le plus souvent utilisées pour réaliser des planchers en béton armé sans coffrages, formés de panneaux supports, souvent désignés sous le nom de "négatifs", reposant sur le bord des talons de deux poutres consécutives, et sur lesquels est coulée la dalle de compression constituant la partie supérieure du plancher. Reinforcements of the "WAREN" type are most often used to make reinforced concrete floors without formwork, formed of support panels, often referred to as "negatives", resting on the edge of the heels of two consecutive beams, and on which are cast the compression slab constituting the upper part of the floor.
A ce jour, l'isolation de ce type de plancher est effectuée soit au-dessus des "négatifs", soit audessous. To date, the insulation of this type of floor is carried out either above the "negatives", or below.
Dans le premier cas, des panneaux isolants sont disposés entre les poutres avant coulage de la dalle de compression, lesdites poutres constituant alors autant de ponts thermiques réduisant très sensiblement l'efficacité de l'isolation. In the first case, insulating panels are placed between the beams before casting the compression slab, said beams then constituting as many thermal bridges very significantly reducing the efficiency of the insulation.
Dans le second cas, on a recours à des plaques rapportées, ou des hourdis à languette onéreux dont la mise en oeuvre délicate nécessite une main-d'oeuvre supplémentaire très qualifiée entraînant une augmentation sensible du prix de revient du plancher. In the second case, recourse is had to plates, or slabs with expensive tabs, the delicate implementation of which requires highly qualified additional labor resulting in a significant increase in the cost price of the floor.
On connaît aussi le remplacement du talon béton par un isolant expansé, technique élaborée faite en atelier qui nécessite un changement ou une transformation du matériel existant. We also know the replacement of the concrete heel with an expanded insulation, an elaborate technique made in the workshop which requires a change or a transformation of the existing material.
L'invention a pour objectif de remédier à ces inconvénients. En effet, elle permet, sans modifier les fabrications traditionnelles, sans augmenter l'épaisseur du plancher, ni générer de main-d'oeuvre supplémentaire, de supprimer les ponts thermiques sur toute la surface de 1 'ouvrage. The invention aims to remedy these drawbacks. Indeed, it allows, without modifying traditional manufacturing, without increasing the thickness of the floor, or generating additional labor, to remove thermal bridges over the entire surface of one structure.
Dans le système selon la présente demande, un isolant tel que la mousse de polystyrène ou de polyuréthanne, coulé ou inséré, grâce à des saignées internes et des entailles prévues à cet effet, sur le treillis des poutrelles, est disposé au-dessus du talon de ces dernières, les risques de flambage du fer supérieur, dus au fait qu'une partie du treillis n'est pas enrobé par le béton de la dalle du plancher, étant compensés par un fer de renfort doublant ledit fer supérieur à mi-portée de la poutre, là où le moment fléchissant est maximum. In the system according to the present application, an insulator such as polystyrene or polyurethane foam, cast or inserted, by means of internal grooves and notches provided for this purpose, on the trellis of the beams, is placed above the heel of the latter, the risks of buckling of the upper iron, due to the fact that part of the lattice is not coated with the concrete of the floor slab, being compensated by a reinforcing iron doubling said upper iron at mid-range of the beam, where the bending moment is maximum.
Sur les dessins annexés, donnés à titre d'exemples non limitatifs de formes de réalisation de l'objet de l'invention:
la figure 1 représente, vue en bout, une poutrelle autoporteuse de type "WAREN" avec isolant coulé au-dessus du talon,
la figure 2 est une vue en perspective d'un élément isolant avec entailles permettant son insertion dans le treillis de la poutrelle,
la figure 3 est une vue en bout d'une poutrelle avec deux éléments isolants à entailles dont l'un en cours de mise en place et le second à son emplacement définitif,
la figure 4 est une vue de côté partielle de la poutrelle de la figure 3
et les figures 5 et 6 représentent des parties de planchers comportant des aménagements particuliers, vus du bout d'une poutrelle.In the accompanying drawings, given by way of nonlimiting examples of embodiments of the subject of the invention:
FIG. 1 represents, seen at the end, a self-supporting beam of the "WAREN" type with insulation poured over the heel,
FIG. 2 is a perspective view of an insulating element with notches allowing it to be inserted into the truss of the beam,
FIG. 3 is an end view of a beam with two notched insulating elements, one of which is being put in place and the second in its final location,
Figure 4 is a partial side view of the beam of Figure 3
and Figures 5 and 6 show parts of floors with particular arrangements, seen from the end of a beam.
La mise en oeuvre du système illustré par les figures 1 à 6, consiste à disposer au-dessus du talon 1 d'une poutrelle autoporteuse 2 un élément isolant incorporant partiellement le treillis 3 de la poutrelle, de manière à couper le pont thermique au-dessus du béton du talon 1. The implementation of the system illustrated in FIGS. 1 to 6 consists in placing above the heel 1 of a self-supporting beam 2 an insulating element partially incorporating the trellis 3 of the beam, so as to cut the thermal bridge over the above the concrete of the heel 1.
Le treillis 3 est constitué de fers soudés sur les fers supérieurs 4 et inférieurs 5 de la poutrelle 2 de manière à former de chaque côté une série de triangles (figure 4). The trellis 3 consists of irons welded to the upper 4 and lower 5 irons of the beam 2 so as to form on each side a series of triangles (Figure 4).
L'élément isolant peut être constitué d'un bloc 6 coulé, de préférence en atelier, ou d'un assemblage de deux pièces 7, 8 jointives comportant des entailles 9 parallèles aux fers du treillis 3, ainsi que des saignées internes 10 de même inclinaison, l'ensemble étant déterminé de manière à ce que les pièces isolantes 7, 8 puissent être présentées en partie haute du treillis et enfilées sur les fers de celui-ci qui pénètrent ainsi dans les saignées 10 en passant par les entailles 9, la forme de ces dernières étant telle que les pièces isolantes restent bloquées sur le treillis 3 lorsqu'elles sont amenées sur le talon 1 par une translation verticale (figures 3 et 4). The insulating element may consist of a cast block 6, preferably in the workshop, or of an assembly of two contiguous parts 7, 8 comprising notches 9 parallel to the irons of the trellis 3, as well as internal grooves 10 likewise inclination, the assembly being determined so that the insulating parts 7, 8 can be presented in the upper part of the trellis and threaded on the irons thereof which thus penetrate into the grooves 10 passing through the notches 9, the form of the latter being such that the insulating parts remain blocked on the trellis 3 when they are brought to the heel 1 by a vertical translation (Figures 3 and 4).
Les fers du treillis 3, n'étant pas enrobés de béton au droit de l'élément isolant, le fer supérieur 5 comprimé est susceptible de "flamber" s'il est trop sollicité ; on résout cette éventualité soit en augmentant la section des aciers du treillis, soit en positionnant sous cet acier et entre les branches du treillis 3 un fer renfort 11 à mi-portée de la poutrelle 2, là où le moment fléchissant est maximum. Cette technique augmente les portées entre murs, et permet de surcroît de standardiser le stock des armatures. The irons of the lattice 3, not being coated with concrete in line with the insulating element, the compressed upper iron 5 is capable of "flaming" if it is stressed too much; this possibility is resolved either by increasing the section of the steel of the trellis, or by positioning under this steel and between the branches of the trellis 3 a reinforcing iron 11 at mid-range of the beam 2, where the bending moment is maximum. This technique increases the span between walls, and also makes it possible to standardize the stock of reinforcement.
L'élément isolant, qu'il soit en un seul bloc 6 coulé, ou constitué de pièces 7, 8 amovibles sera réalisé en mousse de polystyrène ou de polyuréthanne, ou en un matériau similaire. Les pièces isolantes peuvent être de formes diverses et le système de fixation au treillis peut être différent de celui décrit sans remettre en cause l'invention. La partie des pièces isolantes 7, 8 située du côté opposé aux entailles 9 peut avantageusement être rehaussée pour servir de butée aux panneaux isolants 12 placés sur les traditionnels "négatifs" 13 en béton empêchant ainsi leur déplacement au moment du coulage de la dalle de compression 14 (figure 5). The insulating element, whether in a single block 6 cast, or consisting of removable parts 7, 8 will be made of polystyrene or polyurethane foam, or a similar material. The insulating parts can be of various shapes and the system for fixing to the trellis can be different from that described without calling into question the invention. The part of the insulating parts 7, 8 situated on the side opposite the notches 9 can advantageously be raised to serve as a stop for the insulating panels 12 placed on the traditional "negatives" 13 in concrete, thus preventing their displacement when the compression slab is poured. 14 (Figure 5).
La présente invention est également utilisable dans le cas d'emploi de prédalles, apportant aussi une isolation phonique par rupture de la transmission des bruits. The present invention can also be used in the case of using floor slabs, also providing sound insulation by breaking the transmission of noise.
Selon une application particulière de l'invention, les pièces isolantes sont constituées de panneaux 15 couvrant toute la surface du "négatif" 13 en béton ou de la prédalle, en séparant l'épaisseur du plancher en deux couches de béton de masses différentes (figure 6). According to a particular application of the invention, the insulating parts are made up of panels 15 covering the entire surface of the concrete "negative" 13 or of the pre-slab, separating the thickness of the floor into two layers of concrete of different masses (figure 6).
Le positionnement des divers éléments constitutifs donne à l'objet de l'invention un maximum d'effets utiles qui n'avaient pas été, à ce jour, obtenus par des dispositifs similaires. The positioning of the various constituent elements gives the object of the invention a maximum of useful effects which had not, to date, been obtained by similar devices.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9610173A FR2752257B1 (en) | 1996-08-08 | 1996-08-08 | CONCRETE FLOOR INSULATION SYSTEM COMPRISING METAL MESH BEAMS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9610173A FR2752257B1 (en) | 1996-08-08 | 1996-08-08 | CONCRETE FLOOR INSULATION SYSTEM COMPRISING METAL MESH BEAMS |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2752257A1 true FR2752257A1 (en) | 1998-02-13 |
FR2752257B1 FR2752257B1 (en) | 1998-09-18 |
Family
ID=9495034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9610173A Expired - Fee Related FR2752257B1 (en) | 1996-08-08 | 1996-08-08 | CONCRETE FLOOR INSULATION SYSTEM COMPRISING METAL MESH BEAMS |
Country Status (1)
Country | Link |
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FR (1) | FR2752257B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1101879A1 (en) * | 1999-11-19 | 2001-05-23 | A.F.B.A. | Lattice girder |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4494349A (en) * | 1982-07-28 | 1985-01-22 | Clements Arthur C | Truss structure |
EP0136213A2 (en) * | 1983-09-01 | 1985-04-03 | Centre D'etudes Et De Recherches De L'industrie Du Beton Manufacture | Girder intended for the manufacturing of an isolated floor and floor provided with such girders |
FR2554148A1 (en) * | 1983-10-28 | 1985-05-03 | Perraz Guy | Elements for constructing insulating concrete floors |
GB2164367A (en) * | 1984-09-10 | 1986-03-19 | Partek Ab | A concrete building unit of a sandwich structure |
WO1993015287A1 (en) * | 1992-01-31 | 1993-08-05 | Franz Bucher | Lattice girder |
-
1996
- 1996-08-08 FR FR9610173A patent/FR2752257B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4494349A (en) * | 1982-07-28 | 1985-01-22 | Clements Arthur C | Truss structure |
EP0136213A2 (en) * | 1983-09-01 | 1985-04-03 | Centre D'etudes Et De Recherches De L'industrie Du Beton Manufacture | Girder intended for the manufacturing of an isolated floor and floor provided with such girders |
FR2554148A1 (en) * | 1983-10-28 | 1985-05-03 | Perraz Guy | Elements for constructing insulating concrete floors |
GB2164367A (en) * | 1984-09-10 | 1986-03-19 | Partek Ab | A concrete building unit of a sandwich structure |
WO1993015287A1 (en) * | 1992-01-31 | 1993-08-05 | Franz Bucher | Lattice girder |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1101879A1 (en) * | 1999-11-19 | 2001-05-23 | A.F.B.A. | Lattice girder |
FR2801330A1 (en) * | 1999-11-19 | 2001-05-25 | A F B A | LATTICE BEAM |
Also Published As
Publication number | Publication date |
---|---|
FR2752257B1 (en) | 1998-09-18 |
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