FR2505909A3 - Welded reinforcement cage for concrete - has continuous linking of main bars using shaped cross rods preventing deformation - Google Patents

Welded reinforcement cage for concrete - has continuous linking of main bars using shaped cross rods preventing deformation Download PDF

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Publication number
FR2505909A3
FR2505909A3 FR8208715A FR8208715A FR2505909A3 FR 2505909 A3 FR2505909 A3 FR 2505909A3 FR 8208715 A FR8208715 A FR 8208715A FR 8208715 A FR8208715 A FR 8208715A FR 2505909 A3 FR2505909 A3 FR 2505909A3
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FR
France
Prior art keywords
welded
rods
spans
irons
concrete
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Granted
Application number
FR8208715A
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French (fr)
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FR2505909B3 (en
Inventor
Franco Penati
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TECNOFER Srl
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TECNOFER Srl
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Filing date
Publication date
Application filed by TECNOFER Srl filed Critical TECNOFER Srl
Publication of FR2505909A3 publication Critical patent/FR2505909A3/en
Application granted granted Critical
Publication of FR2505909B3 publication Critical patent/FR2505909B3/fr
Granted legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/065Light-weight girders, e.g. with precast parts

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Wire Processing (AREA)

Abstract

The reinforcement has three main rods or traverses (1-3) arranged as the apexes of a triangle, with the bottom two rods (1,2) connected to the top rod (3) by continuous zig zag connectors (4,5) welded to the traverses at the joints of welding. Alternatively, the top traverse can have two bars connected together by bracing, before connection to the bottom bars. The connectors have a zone (8) at which they are welded to the traverse, and their bottom extremities are bent to form triangles (9) which project outside the zone borded by the traverses.

Description

La présente invention a pour objet une armature électro soudée pour armer des structures de béton comme des dalles, des poutres et similaires. The present invention relates to an electro-welded reinforcement for reinforcing concrete structures such as slabs, beams and the like.

Les armatures actuellement connues sont composées de ti < ou travées longitudinales de fer parallèles entre elles, disposez selon les sommets d'un triangle ou d'un trapèze et reliées entre elles par des traverses ou étriers électro-soudés. The currently known reinforcements are composed of ti <or longitudinal iron spans parallel to each other, arranged according to the vertices of a triangle or a trapezoid and connected together by transverse or electro-welded stirrups.

Le fait que les traverses sont séparées entre elles et soudées individuellement provoque une élasticité notable à la flexion de toute l'armature, laquelle présente en outre un grand nombre de zones critiques (affaiblissement) individuelles aux poil de soudure. The fact that the crosspieces are separated from one another and welded individually causes a noticeable elasticity in bending of the whole reinforcement, which moreover has a large number of critical zones (weakening) individual to the welding bristles.

Le problème technique posé est par conséquent de réalisez une armature avec laquelle les inconvénients mentionnés ci-dessus sont sensiblement réduits. The technical problem posed is therefore to make a frame with which the drawbacks mentioned above are significantly reduced.

Ce problème technique est résolu selon la présente invei tion grâce à une armature caractérisée par le fait qu'elle comprex trois tiges longitudinales disposées sensiblement selon les sommet d'un triangle, que les deux tiges ou travées inférieures sont chacune reliées avec la supérieure par un fer ayant une forme sensiblement en zigzag soudé aux tiges ou travées au voisinage des points de pliage.Dans cette définition, on a évidemment supposé les tiges ou travées sont situées horizontalement et que leur extrémité délimite un triangle situé dans un plan vertical, avec base horizontale et le sommet opposé situé au-dessus de ladite bas
D'autres particularités de l'invention seront exposées dans la description suivante en faisant référence aux figures cijointes dans lesquelles
La figure 1 représente une vue en plan d'une armature à trois tiges longitudinales,
La figure 2 représente une vue latérale de l'armature dc la figure 1,
La figure 3 représente une vue selon la ligne de coupe
III-III de la figure 2,
La figure 4 représente une vue en plan d'une autre struc ture comportant quatre tiges longitudinales,
La figure 5 représente une vue latérale de l'armature dc la figure 4,
La figure 6 représente une vue selon la ligne de coupe \
VI de la figure 5.
This technical problem is solved according to the present invention thanks to a frame characterized by the fact that it comprex three longitudinal rods arranged substantially at the apex of a triangle, that the two lower rods or spans are each connected with the upper by a iron having a substantially zigzag shape welded to the rods or spans in the vicinity of the folding points. In this definition, it has obviously been assumed that the rods or spans are situated horizontally and that their end delimits a triangle situated in a vertical plane, with horizontal base and the opposite top located above said bottom
Other features of the invention will be explained in the following description with reference to the attached figures in which
FIG. 1 represents a plan view of a frame with three longitudinal rods,
FIG. 2 represents a side view of the frame of FIG. 1,
Figure 3 shows a view along the section line
III-III of Figure 2,
FIG. 4 represents a plan view of another structure comprising four longitudinal rods,
FIG. 5 represents a side view of the armature of FIG. 4,
Figure 6 shows a view along the section line \
VI of figure 5.

Dans les figures 1 à 3, l'armature est composée d'un couple de tiges 1, 2 parallèles entre elles et disposées selon les extrémités de la base d'un triangle isocèle au sommet duquel est placée une troisième tige 3, parallèle aux précédentes. Les tiges l- 3 sont constituées de fers ronds striés, appelés communément fers à béton, de type commercial, par exemple du type connu sous la dénomation FB44KCS. In Figures 1 to 3, the frame is composed of a pair of rods 1, 2 parallel to each other and arranged at the ends of the base of an isosceles triangle at the top of which is placed a third rod 3, parallel to the previous ones . Rods 1-3 are made up of striated round irons, commonly called concrete irons, of the commercial type, for example of the type known under the name FB44KCS.

Les deux tiges inférieures sont reliées à la travée supérieure par des fers de liaisons constitués de fers ronds 4, 5 qui ont la forme d'une ligne brisée, c'est-a-dire sensiblement en zigzag. The two lower rods are connected to the upper span by connecting irons made up of round irons 4, 5 which have the shape of a broken line, that is to say substantially in zigzag.

En fait, les fers ronds 4, 5 présentent des parties 6, 7 inclinées en sens alternés. En correspondance avec le voisinage de la tige supérieure, les portions 6, 7 sont reliées entre elles par des parties 8 de pliage par lesquelles elles sont unies à la tige supérieure 3.In fact, the round irons 4, 5 have parts 6, 7 inclined in alternating directions. In correspondence with the vicinity of the upper rod, the portions 6, 7 are interconnected by folding portions 8 by which they are united to the upper rod 3.

En correspondance avec le voisinage des tiges inférieures, les parties 6, 7 sont pliées de façon à former des triangles 9 qui font saillie vers l'extérieur par rapport aux tiges 1, 2 sur lesquelles elles sont électro-soudées. Les triangles 9 sont situés dans le même plan que les tiges 1, 2. Dans le mode de réalisation des figures 4-6, la travée supérieure est remplacée par deux tiges ou fers ronds 8, li reliées entre elles par des traverses 12 électrosoudées dans les zones qui s'étendent entre les points de soudure des portions 8, chacune des tiges 8, li étant reliée, par l'intermédiaire des fers 4, 5, à une seule tige inférieure 1,-2. In correspondence with the vicinity of the lower rods, the parts 6, 7 are folded so as to form triangles 9 which project outwards relative to the rods 1, 2 on which they are electro-welded. The triangles 9 are situated in the same plane as the rods 1, 2. In the embodiment of FIGS. 4-6, the upper span is replaced by two rods or round bars 8, li linked together by cross-members 12 electrowelded in the zones which extend between the welding points of the portions 8, each of the rods 8, li being connected, by means of the irons 4, 5, to a single lower rod 1, -2.

Les avantages de l'armature de l'invention résident principalement dans le fait que nombre des soudures nécessaires est pratiquement diminué de moitié par rapport aux armatures traditionnelles et dans le fait que les points de soudure des parties 8 avec la travée supérieure constituent des noeuds de raidissement.  The advantages of the reinforcement of the invention lie mainly in the fact that the number of welds required is practically halved compared to traditional reinforcements and in the fact that the welding points of the parts 8 with the upper span constitute knots of stiffening.

Claims (4)

REVENDICATIONS 1. Armature électro-soudée pour armer des structures de béton telles que des dalles, des poutres et similaires, caractéris par le fait qu'elle comprend trois tiges ou travées longitudinales (1, 2, 3) disposées sensiblement selon les sommets d'un triangle, les deux tiges ou travées inférieures (1, 2) étant reliées avec la tige ou travée supérieure (3) respectivement par des fers de liais (4, 5) ayant une forme sensiblement en zigzag et soudés aux travée en correspondance avec les points de pliage. 1. Electro-welded reinforcement for reinforcing concrete structures such as slabs, beams and the like, characterized in that it comprises three rods or longitudinal spans (1, 2, 3) arranged substantially along the tops of a triangle, the two lower rods or spans (1, 2) being connected with the upper rod or span (3) respectively by link irons (4, 5) having a substantially zigzag shape and welded to the spans in correspondence with the points folding. 2. Armature selon la revendication 1, caractérisée par 1 fait que la travée disposée en correspondance avec le sommet du triangle est constituée par deux fers (10, 11) reliés entre eux pa des traverses (12) électro-soudées. 2. Reinforcement according to claim 1, characterized by 1 fact that the span arranged in correspondence with the vertex of the triangle is constituted by two irons (10, 11) connected to each other pa of electro-welded crosspieces (12). 3. Armature selon la revendication 1, caractérisée par 1 fait que les fers de liaison (4, 5) conformés en zigzag présentent des zones de pliage (8) au voisinage desquelles ils sont soudés à travée supérieure (3). 3. Reinforcement according to claim 1, characterized by 1 fact that the connecting irons (4, 5) zigzag shaped have folding zones (8) in the vicinity of which they are welded to upper span (3). 4. Armature selon la revendication 1, caractérisée par 1 fait que les fers de liaison (4, 5) ont les extrémités inférieures pliées de façon à former des triangles (9) qui font saillie vers l'extérieur par rapport aux travées ou tiges inférieures (1, 2).  4. Reinforcement according to claim 1, characterized by 1 fact that the connecting irons (4, 5) have the lower ends folded so as to form triangles (9) which project outwards relative to the lower spans or rods (1, 2).
FR8208715A 1981-05-18 1982-05-18 Welded reinforcement cage for concrete - has continuous linking of main bars using shaped cross rods preventing deformation Granted FR2505909A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT03435/81A IT1145767B (en) 1981-05-18 1981-05-18 ELECTROWELDED TRACKS WITH CONTINUOUS SIDE BRACKETS IN ROUND IRON FOR C.A. TRAPEZOIDAL OR TRIANGULAR SECTION FOR CONCRETE STRUCTURES

Publications (2)

Publication Number Publication Date
FR2505909A3 true FR2505909A3 (en) 1982-11-19
FR2505909B3 FR2505909B3 (en) 1983-04-22

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Family Applications (1)

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FR8208715A Granted FR2505909A3 (en) 1981-05-18 1982-05-18 Welded reinforcement cage for concrete - has continuous linking of main bars using shaped cross rods preventing deformation

Country Status (3)

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DE (1) DE8214300U1 (en)
FR (1) FR2505909A3 (en)
IT (1) IT1145767B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597137A1 (en) * 1986-04-11 1987-10-16 Aubry Daniel Bracing element for welded wire meshes

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002001C2 (en) * 1990-01-24 1995-02-09 Heinz Wieland Connection and reinforcement element for a component to be cantilevered from a wall
DE19611200A1 (en) * 1996-03-21 1997-10-30 Europor Massivhaus Gmbh Reinforcement arrangement for aerated concrete components
DE102010051743B4 (en) 2010-11-19 2022-09-01 C. Miethke Gmbh & Co. Kg Programmable hydrocephalus valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597137A1 (en) * 1986-04-11 1987-10-16 Aubry Daniel Bracing element for welded wire meshes

Also Published As

Publication number Publication date
FR2505909B3 (en) 1983-04-22
IT8103435A0 (en) 1981-05-18
DE8214300U1 (en) 1982-08-26
IT1145767B (en) 1986-11-12

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