CH259755A - Floor. - Google Patents
Floor.Info
- Publication number
- CH259755A CH259755A CH259755DA CH259755A CH 259755 A CH259755 A CH 259755A CH 259755D A CH259755D A CH 259755DA CH 259755 A CH259755 A CH 259755A
- Authority
- CH
- Switzerland
- Prior art keywords
- floor
- floor according
- section
- double
- rod
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
Description
Plancher. L'objet de la présente invention est. un plancher, caractérisé en ce qu'il comprend des poutrelles en béton armé en forme de double T, dont la tige présente unie section droite plus étroite dans sa partie médiane qu'à ses extrémités.
Le dessin ci-annexé représente, à titre d'exemples, deux formes d'exécution du plan cher faisant l'objet de l'invention.
La fig. 1 est une coupe transversale de la première forme d'exécution.
La fig. 2 est une coupe transversale de la seconde forme d'exécution.
La fig. 3 est une coupe verticale d'une poutrelle en forme de double T, à échelle agrandie, et la fig. 4 est une vue en perspective d'une moitié d'un moule servant à préparer la pou trelle de la fig. 3.
Le plancher représenté dans la fig. 1 com prend une série de poutrelles 10 disposées à une distance de 42 cm les unes des autres. Les poutrelles 10 sont en forme de double T avec une semelle inférieure 11 de 18 cm de largeur et une semelle supérieure 12 de 10 cm de largeur. La tige reliant les deux semelles pré sente, dans sa partie médiane, un peu plus près de la semelle inférieure 11 que de la se melle supérieure 12, une section droite 13-13 de largeur rétrécie. Cette largeur peut être avantageusement choisie aux environs de 4,4 cm pour toute hauteur de poutrelle de 10 à 24 cm.
A partir de la section 13-13, la tige va en s'élargissant vers le haut et vers le bas, pour atteindre, par exemple, 5 cm à la sec tion 14-14 à laquelle se raccorde la semelle inférieure 11 et 6 cm à la section 15-15 à laquelle se raccorde la semelle supérieure 12. L'armature de la poutrelle, qui peut varier suivant la charge, est constituée par quatre fers ronds longitudinaux de 4 mm, 16, 17, 18, 19, disposés dans la semelle inférieure 11, deux fers ronds longitudinaux de 4 mm, 20 et 21 disposés dans la semelle supérieure 12, et les fils de fer de liaison habituels 22 de 2 mm de diamètre dont les extrémités émergent dans une rainure longitudinale 23 ménagée au centre de la semelle supérieure 12.
Cette rainure, large, par exemple, de 3 cm et pro fonde de 2,5 cm, permet d'alléger la poutrelle et sert de moyen d'ancrage pour le revête ment de béton 25 qui recouvre les tablettes supérieures 24 en terre cuite. Les tablettes inférieures 26 sont également en terre cuite.
Les poutrelles 10 peuvent être coulées à pied d'oeuvre en béton ordinaire ou en béton léger, par exemple en béton de scories. On peut utiliser pour cela des moules formés de deux coquilles latérales en tôle, telles que celle représentée en fig. 4.
Dans la forme d'exécution de la fig. 2, les poutrelles 10 sont juxtaposées. Les semelles inférieure 11 et supérieure 12 sont d'égale largeur.
Floor. The object of the present invention is. a floor, characterized in that it comprises reinforced concrete beams in the shape of a double T, the rod of which has a straight section that is narrower in its middle part than at its ends.
The appended drawing represents, by way of examples, two embodiments of the expensive plan forming the subject of the invention.
Fig. 1 is a cross section of the first embodiment.
Fig. 2 is a cross section of the second embodiment.
Fig. 3 is a vertical section through a double T-shaped beam, on an enlarged scale, and FIG. 4 is a perspective view of one half of a mold used to prepare the bin of FIG. 3.
The floor shown in fig. 1 com takes a series of joists 10 arranged at a distance of 42 cm from each other. The beams 10 are in the shape of a double T with a lower flange 11 of 18 cm in width and an upper flange 12 of 10 cm in width. The rod connecting the two soles presents, in its middle part, a little closer to the lower sole 11 than to the upper sole 12, a straight section 13-13 of narrowed width. This width can be advantageously chosen around 4.4 cm for any beam height of 10 to 24 cm.
From section 13-13, the rod widens up and down, reaching, for example, 5 cm at section 14-14 to which the lower sole 11 and 6 cm connects to section 15-15 to which the upper flange is connected 12. The reinforcement of the joist, which may vary according to the load, consists of four longitudinal round bars of 4 mm, 16, 17, 18, 19, arranged in the lower sole 11, two longitudinal round bars of 4 mm, 20 and 21 arranged in the upper sole 12, and the usual connecting wires 22 of 2 mm in diameter, the ends of which emerge in a longitudinal groove 23 formed in the center of the upper sole 12.
This groove, for example 3 cm wide and 2.5 cm deep, makes it possible to lighten the joist and serves as an anchoring means for the concrete covering 25 which covers the upper terracotta shelves 24. The lower shelves 26 are also made of terracotta.
The beams 10 can be cast on the job in ordinary concrete or in lightweight concrete, for example slag concrete. For this, molds formed from two lateral sheet metal shells, such as the one shown in FIG. 4.
In the embodiment of FIG. 2, the beams 10 are juxtaposed. The lower 11 and upper 12 soles are of equal width.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT259755X | 1945-06-21 | ||
IT140146X | 1946-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH259755A true CH259755A (en) | 1949-02-15 |
Family
ID=26326686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH259755D CH259755A (en) | 1945-06-21 | 1946-12-21 | Floor. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH259755A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE860406C (en) * | 1950-04-11 | 1952-12-22 | Ernst Lexe | Process for the production of reinforced concrete rib ceilings |
DE900384C (en) * | 1951-01-16 | 1953-12-28 | Ing Franz Czernilofsky | Ceiling beams for the production of solid ceilings |
-
1946
- 1946-12-21 CH CH259755D patent/CH259755A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE860406C (en) * | 1950-04-11 | 1952-12-22 | Ernst Lexe | Process for the production of reinforced concrete rib ceilings |
DE900384C (en) * | 1951-01-16 | 1953-12-28 | Ing Franz Czernilofsky | Ceiling beams for the production of solid ceilings |
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