BE444601A - - Google Patents

Info

Publication number
BE444601A
BE444601A BE444601DA BE444601A BE 444601 A BE444601 A BE 444601A BE 444601D A BE444601D A BE 444601DA BE 444601 A BE444601 A BE 444601A
Authority
BE
Belgium
Prior art keywords
hollow
longitudinal
hollows
elements
element according
Prior art date
Application number
Other languages
French (fr)
Priority date (The priority date 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 date listed.)
Publication of BE444601A publication Critical patent/BE444601A/fr

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated hollow cores
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/18Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
    • E04B5/19Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members the filling members acting as self-supporting permanent forms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00Roofs; Roof construction with regard to insulation
    • E04B7/08Vaulted roofs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00Roofs; Roof construction with regard to insulation
    • E04B7/08Vaulted roofs
    • E04B7/10Shell structures, e.g. of hyperbolic-parabolic shape; Grid-like formations acting as shell structures; Folded structures
    • E04B7/102Shell structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Lining And Supports For Tunnels (AREA)

Description

       

  "Hourdis creux". 

  
L'invention concerne les hourdis creux et plus particulièrement les hourdis construits en agglomérés. Le but de l'invention est de réaliser des éléments de hourdis creux, présentant

  
à la fois une résistance maximum et un poids mort minimum.

  
On connaît des éléments de hourdis ou dalles creuses présentant des creux longitudinaux, dans le but essentiel d'alléger

  
ces éléments. D'une manière générale, ces creux sont disposés dans

  
un même plan au droit de la fibre neutre. De tels éléments de

  
hourdis sont à la fois très économiques et très manoeuvrables.

  
Suivant l'invention, on a réalisé de tels éléments creux, mais

  
 <EMI ID=1.1> 

  
ments connus.

  
Substantiellement, l'élément de hourdis conforme à l'invention, est constitué par une dalle traversée longitudinale-

  
 <EMI ID=2.1> 

  
voisinage du noyau- central de la pièce, la section du hourdis forme ou approche le profil d'une voûte.

  
En effet, si l'on considère un hourdis traversé de trois creux longitudinaux par exemple, dont l'axe longitudinal

  
 <EMI ID=3.1> 

  
creux médian étant situé en dehors de ce plan, on aura créé une section de l'élément approchant le dessin d'une voûte. Semblablement, la répartition des tensions internes dans la masse se fera d'une manière approchant celle que l'on rencontre dans les voûtes et, par ce fait, on aura réalisé une stabilité maximum de l'élément et, par conséquent, du hourdis.

  
Pour compléter cette stabilité, les faces latérales

  
des éléments de hourdis sont inclinées, de telle sorte que plu-  sieurs éléments jointifs peuvent être assimilés aux voussoirs d'une voûte de rayon infini,- par exemple...-' 

  
En fait, la disposition jointive de tels éléments

  
de hourdis pourrait être assimilée à une succession de voussettes, dont la résistance à la flexion est particulièrement élevée

  
et dans lesquelles les efforts transversaux s'équilibrent mu-

  
 <EMI ID=4.1> 

  
Moyennant ces prescriptions nouvelles, on peut évidemment réaliser des éléments de hourdis de sections diverses, soit en modifiant la coupe trapézoïdale, soit en modifiant le nombre

  
de creux longitudinaux, soit encore en modifiant la section de

  
ces creux, leurs dimensions etc.

  
Un mode d'exécution est décrit plus en détail ci-après et schématisé au dessin annexé, qui représente une coupe transversale d'un élément de hourdis, conforme à l'invention, avec une vue

  
 <EMI ID=5.1>  

  
Le hourdis peut être exécuté en tout matériau approprié et plus généralement en béton, ciment, béton armé ou aggloméré composite de toute nature.

  
L'élément de hourdis _1 se présente donc sous la forme d'une dalle, généralement oblongue, de section trapézoïdale. Les

  
 <EMI ID=6.1> 

  
nière à former des espèces de claveaux ou voussoirs, comme exposé précédemment.

  
Ses deux faces latérales présentent généralement au

  
 <EMI ID=7.1> 

  
gement d'une armature longitudinale ou d'un lien ou élément support supplémentaire. Généralement, on logera entre les éléments jointifs dans les creux ainsi adjacents, des barres métalliques ou bien encore de petites poutrelles ou tous autres éléments rigides appropriés.

  
L'élément 1 est traversé longitudinalement, en l'oc-

  
 <EMI ID=8.1> 

  
par exemple, une courbe continue tangente à la partie supérieure des trois creux.

  
On pourrait évidemment, suivant l'importance des éléments 1 considérés, multiplier le nombre de creux longitudinaux, en les rapprochant éventuellement, de manière à reproduire le plus fidèlement possible la voûte dont on veut atteindre le profil.

  
On peut comprendre qu'un hourdis construit avec de

  
tels éléments, doit présenter une stabilité maximum, eu égard à la répartition rationnelle des tensions internes dans la masse. Simultanément, on atteind une réduction maximum du poids mort, ce qui :'est non seulement économique au point de vue de la réduction

  
des matières premières, mais également très appréciable pour les nombreuses manutentions en atelier et à pied d'oeuvre. 

  
On peut évidemment appliquer individuellement les caractéristiques susdécrites en combinaison éventuelle avec d'autres caractéristiques. Par exemple, la disposition particulière

  
des creux longitudinaux pourrait être introduite dans des éléments

  
de hourdis de toute autre section que la section trapézoïdale préconisée.

REVENDICATIONS.

  
 <EMI ID=9.1> 

  
lement sous la forme d'une dalle présentant des creux longitudinaux disposés de manière à approcher la forme d'une voûte.



  "Hollow hourdis".

  
The invention relates to hollow slabs and more particularly slabs constructed of agglomerates. The aim of the invention is to produce hollow slab elements, presenting

  
both maximum strength and minimum dead weight.

  
There are known elements of slabs or hollow slabs having longitudinal hollows, with the essential aim of reducing

  
these elements. In general, these hollows are arranged in

  
the same plane at the right of the neutral fiber. Such elements of

  
slabs are both very economical and very maneuverable.

  
According to the invention, such hollow elements have been produced, but

  
 <EMI ID = 1.1>

  
known mentions.

  
Substantially, the slab element according to the invention consists of a slab traversed longitudinally.

  
 <EMI ID = 2.1>

  
near the central core of the room, the section of the slab forms or approaches the profile of a vault.

  
Indeed, if we consider a slab crossed by three longitudinal hollows for example, whose longitudinal axis

  
 <EMI ID = 3.1>

  
median hollow being located outside this plane, we will have created a section of the element approaching the design of a vault. Similarly, the distribution of internal tensions in the mass will be done in a manner approaching that which one meets in the vaults and, by this fact, one will have achieved a maximum stability of the element and, consequently, of the slab.

  
To complete this stability, the side faces

  
slab elements are inclined, so that several adjoining elements can be assimilated to the segments of a vault of infinite radius, - for example ...- '

  
In fact, the joint arrangement of such elements

  
of slabs could be assimilated to a succession of arches, whose flexural strength is particularly high

  
and in which the transverse forces are balanced mutually

  
 <EMI ID = 4.1>

  
By means of these new prescriptions, it is obviously possible to produce slab elements of various sections, either by modifying the trapezoidal cut, or by modifying the number

  
longitudinal hollows, or by modifying the section of

  
these hollows, their dimensions etc.

  
An embodiment is described in more detail below and shown schematically in the accompanying drawing, which shows a cross section of a slab element, according to the invention, with a view

  
 <EMI ID = 5.1>

  
The slabs can be executed in any suitable material and more generally in concrete, cement, reinforced concrete or composite agglomerate of any kind.

  
The slab element _1 is therefore in the form of a slab, generally oblong, of trapezoidal section. The

  
 <EMI ID = 6.1>

  
nière to form kinds of keystones or voussoirs, as explained above.

  
Its two lateral faces generally present at

  
 <EMI ID = 7.1>

  
gement of a longitudinal reinforcement or of an additional link or support element. Generally, between the adjoining elements in the hollows thus adjacent, there will be metal bars or even small beams or any other suitable rigid elements.

  
Element 1 is crossed longitudinally, in oc-

  
 <EMI ID = 8.1>

  
for example, a continuous curve tangent to the top of the three valleys.

  
It would obviously be possible, depending on the importance of the elements 1 considered, to multiply the number of longitudinal hollows, possibly bringing them closer together, so as to reproduce as faithfully as possible the arch whose profile is to be achieved.

  
We can understand that a slab built with

  
such elements, must have maximum stability, having regard to the rational distribution of internal tensions in the mass. At the same time, a maximum reduction in the dead weight is achieved, which: 'is not only economical from the point of view of reduction

  
raw materials, but also very valuable for the many handling in the workshop and on the job.

  
The above-described characteristics can of course be applied individually in possible combination with other characteristics. For example, the special provision

  
longitudinal hollows could be introduced into elements

  
slabs of any section other than the recommended trapezoidal section.

CLAIMS.

  
 <EMI ID = 9.1>

  
Lement in the form of a slab having longitudinal hollows arranged so as to approach the shape of a vault.


    

Claims (1)

2.- Elément de hourdis conforme à la revendication 1, caractérisé par le fait que dans le but d'approcher la forme d'une 2.- Slab element according to claim 1, characterized in that in order to approach the shape of a voûte, les creux longitudinaux ou certains de ceux-ci, ont leur vault, longitudinal hollows or some of them, have their axe longitudinal disposé dans des plans différents. longitudinal axis arranged in different planes. 3.- Elément de hourdis conforme aux revendications 1 3.- Slab element according to claims 1 et 2, caractérisé par le fait que suivant un mode d'exécution, il comporte trois creux longitudinaux, dont les deux extrêmes ont and 2, characterized in that according to one embodiment, it has three longitudinal hollows, the two ends of which have leur axe disposé dans un mens plan, le creux médian ayant son axe longitudinal en dehors de ce plan. their axis disposed in a plane mens, the median hollow having its longitudinal axis outside this plane. 4.- Elément de hourdis conforme aux revendications précédentes, caractérisé par le fait qu'il présente, en outre des 4.- Slab element according to the preceding claims, characterized in that it has, in addition creux longitudinaux disposés en forme de voûte, des faces latérales inclinées, de telle manière que les éléments jointifs d'un longitudinal hollows arranged in the form of an arch, inclined side faces, such that the adjoining elements of a hourdis forment en quelque sorte des voussoirs ou claveaux de slabs form some sort of voussoirs or keystones of rayon infini. infinite radius. 5.- Elément de hourdis suivant les revendications précédentes, caractérisé par le fait que les faces latérales inclinées présentent au moins un creux longitudinal, pour le logement 5.- Slab element according to the preceding claims, characterized in that the inclined side faces have at least one longitudinal hollow, for housing d'une armature ou lien ou support supplémentaire entre les éléments jointifs. a reinforcement or link or additional support between the adjoining elements. 6.- La disposition générale dans les éléments de hourdis creux, des creux longitudinaux, de manière à obtenir une section approchant la forme d'une voûte, les creux restant indépen-dants' l'un de l'autre. 6.- The general arrangement in the elements of hollow slabs, longitudinal hollows, so as to obtain a section approaching the shape of a vault, the hollows remaining independent of one another. 7.- Hourdis creux, caractérisé par le fait qu'il est obtenu par l'application des éléments creux conformes aux revendications précédentes. 7.- Hollow hollow, characterized in that it is obtained by the application of the hollow elements according to the preceding claims.
BE444601D 1942-08-29 BE444601A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE887371X 1942-08-29

Publications (1)

Publication Number Publication Date
BE444601A true BE444601A (en)

Family

ID=3883904

Family Applications (2)

Application Number Title Priority Date Filing Date
BE444601D BE444601A (en) 1942-08-29
BE447099D BE447099A (en) 1942-08-29

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE447099D BE447099A (en) 1942-08-29

Country Status (2)

Country Link
BE (2) BE447099A (en)
FR (1) FR887371A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306421A (en) * 2019-06-05 2019-10-08 成都建工工业化建筑有限公司 Assembled plate-girder and its construction method based on building industrialization product

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2350439A1 (en) * 1976-05-05 1977-12-02 Kraemer Betonwerk Alois Prefabricated concrete ceiling assembly - consists of sections constructed as trapezoidal girders with two converging lengthwise sides and side duct

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306421A (en) * 2019-06-05 2019-10-08 成都建工工业化建筑有限公司 Assembled plate-girder and its construction method based on building industrialization product

Also Published As

Publication number Publication date
BE447099A (en)
FR887371A (en) 1943-11-11

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