FR2693226A1 - Improved reinforced concrete post with climbing bars - uses thicker wall in hollow post to support bars passed diagonally through corners of post to provide climbing bars - Google Patents
Improved reinforced concrete post with climbing bars - uses thicker wall in hollow post to support bars passed diagonally through corners of post to provide climbing bars Download PDFInfo
- Publication number
- FR2693226A1 FR2693226A1 FR9208393A FR9208393A FR2693226A1 FR 2693226 A1 FR2693226 A1 FR 2693226A1 FR 9208393 A FR9208393 A FR 9208393A FR 9208393 A FR9208393 A FR 9208393A FR 2693226 A1 FR2693226 A1 FR 2693226A1
- Authority
- FR
- France
- Prior art keywords
- post
- bars
- climbing
- corner
- reinforced concrete
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
- B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/12—Structures made of specified materials of concrete or other stone-like material, with or without internal or external reinforcements, e.g. with metal coverings, with permanent form elements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
La presente invention concerne un perfectionnement aux poteaux en béton armé du type comportant, dans un angle, un aménagement pour permettre leur escalade. The present invention relates to an improvement to reinforced concrete poles of the type comprising, in a corner, an arrangement to allow their climbing.
Ces poteaux sont essentiellement utilisés pour la construction des réseaux d'alimentation en électricité. These poles are mainly used for the construction of electricity supply networks.
Ils sont réalisés par moulage de béton de ciment, soit selon une section pleine, soit selon une section creuse.They are made by molding concrete cement, either in a solid section or in a hollow section.
Dans le cas de poteaux de section creuse, les quatre faces externes du poteau sont parfaitement lisses. Pour permettre l'escalade, on utilise des barreaux qui se positionnent dans des orifices préalablement aménagés, obtenus directement lors du moulage du poteau et disposés au niveau d'une arête. In the case of posts of hollow section, the four external faces of the post are perfectly smooth. To allow climbing, bars are used which are positioned in previously arranged orifices, obtained directly during the molding of the post and arranged at an edge.
Ces poteaux comportent une armature métallique au niveau des angles. L'encombrement de cette armature, surtout en haut de la partie creuse du poteau, constitue un obstacle pour permettre l'aménagement des moyens d'escalade et en particulier la mise en place de fourreaux qui servent au logement et au positionnement de barreaux qui constituent ces moyens d'escalade. These posts have a metal frame at the corners. The size of this frame, especially at the top of the hollow part of the post, constitutes an obstacle to allow the development of climbing means and in particular the installation of sleeves which are used for housing and positioning of bars which constitute these climbing means.
Pour respecter le cahier des charges, qui impose, pour ce type de poteau creux, une étanchéité totale de la cavité interne, il n'est pas possible, avec les moyens classiques de fabrication, d'aménager les logements des barreaux d'escalade. To comply with the specifications, which requires, for this type of hollow post, a total seal of the internal cavity, it is not possible, with conventional manufacturing means, to arrange the housing of the climbing bars.
La présente invention propose une solution a' ce problème particulier des poteaux creux comportant une armature importante dans les angles ; elle permet un aménagement des moyens d'escalade, en respectant l'exigence d'étanchéité entre la cavité interne et I'extérieur, de façon à éviter les problèmes liés notamment au nichage des guepes. The present invention provides a solution to this particular problem of hollow posts having a large reinforcement in the corners; it allows an arrangement of the climbing means, respecting the sealing requirement between the internal cavity and the exterior, so as to avoid the problems linked in particular to nesting of wasps.
Selon l'invention, le poteau est moulé autour d'un noyau qui comporte, sur tout ou partie de sa longueur, un méplat permettant d'accroître, dans la zone qui correspond à l'angle aménagé pour la réception des barreaux d'escalade, l'espace compris entre l'armature disposée dans ledit angle et ledit noyau, de façon à loger les fourreaux d'accueil desdits barreaux. According to the invention, the post is molded around a core which comprises, over all or part of its length, a flat allowing to increase, in the area which corresponds to the angle arranged for the reception of the climbing bars. , the space between the frame arranged in said angle and said core, so as to accommodate the reception sleeves of said bars.
Ainsi, selon l'invention, le poteau comporte sur tout ou partie de sa longueur, une surépaisseur dans l'angle comportant les aménagements qui permettent de positionner les barreaux d'escalade. Thus, according to the invention, the post comprises over all or part of its length, an additional thickness in the angle comprising the arrangements which make it possible to position the climbing bars.
L'invention sera encore détaillée à l'aide de la description suivante d'un mode de réalisation et des dessins annexés, donnés à titre indicatif, et dans lesquels - la figure 1 représente un poteau dans son moule avec le noyau central en place - la figure 2 représente une section du noyau de moulage au niveau du pied du poteau - la figure 3 représente une section du noyau de moulage au niveau de son extrémité supérieure - la figure 4 représente une section du poteau vers le fond de sa cavité, munie également d'un barreau d'escalade. The invention will be further detailed with the aid of the following description of an embodiment and of the appended drawings, given by way of indication, and in which - FIG. 1 represents a post in its mold with the central core in place - Figure 2 shows a section of the molding core at the base of the post - Figure 3 shows a section of the molding core at its upper end - Figure 4 shows a section of the post towards the bottom of its cavity, provided also a climbing bar.
Tel que représenté sur les figures, le poteau 1 est réalisé en béton et il comporte sur les trois quarts environ de sa hauteur, un orifice central qui permet de réduire de façon notable son poids. Le poteau 1 est réalisé dans un moule 2 et la cavité centrale est obtenue au moyen d'un noyau 3 porté par l'extrémité 4 dudit moule. Ces poteaux 1 ont une section qui est généralement carrée, de même la cavité centrale 5 a une section qui est généralement octogonale. As shown in the figures, the post 1 is made of concrete and has around three quarters of its height, a central orifice which makes it possible to significantly reduce its weight. The post 1 is made in a mold 2 and the central cavity is obtained by means of a core 3 carried by the end 4 of said mold. These posts 1 have a section which is generally square, likewise the central cavity 5 has a section which is generally octagonal.
On remarque, figure 2, sur la section du noyau 3 réalisé à proximité de l'extrémité inférieure 10 du poteau 1, que la section en question est octogonale de forme régulière. Cette section peut avoir une autre forme. Note, in Figure 2, on the section of the core 3 made near the lower end 10 of the post 1, that the section in question is octagonal in regular shape. This section can have another form.
Dans ses angles, figure 4, le poteau 1 comporte une armature constituée de filants 6 réunis au moyen d'étriers 7. On remarque que chaque face comporte deux groupes de quatre filants 6 ; ces filants partent de la base 10 du poteau et ils s'étendent jusqu'à la tête 11. In its angles, FIG. 4, the post 1 comprises an armature consisting of struts 6 joined by means of stirrups 7. It is noted that each face comprises two groups of four struts 6; these strands start from the base 10 of the post and they extend to the head 11.
Pour permettre l'escalade de ce type de poteau dont les parois externes sont lisses, on utilise des barreaux 13 enfilés dans des orifices 14 aménagés dans l'angle 15 du poteau. Ces orifices 14 sont perpendiculaires à l'axe général 8 du poteau, et ils débouchent sur les faces adjacentes 16 et 17 dudit poteau 1, comme représenté figure 4. Pour obtenir directement l'orifice 14 sur le poteau 1, lors du moulage, on insère dans le moule, avant la coulée du béton, des fourreaux 18 régulièrement répartis, tous les 50 cm par exemple, de façon à aménager des réservations pour le positionnement des barreaux 13. Ces barreaux 13 consistent en une simple tige cylindrique qui est munie d'un système de positionnement et de verrouillage en forme de crochet 19 qui, par simple gravité, se positionne sur l'angle 15, à l'extérieur du poteau.Le crochet 19 permet de centrer et de retenir automatiquement le barreau 13 sur le poteau 1. To allow the climbing of this type of post whose external walls are smooth, bars 13 are used which are threaded through orifices 14 arranged in the angle 15 of the post. These orifices 14 are perpendicular to the general axis 8 of the post, and they open on the adjacent faces 16 and 17 of said post 1, as shown in FIG. 4. To directly obtain the orifice 14 on the post 1, during molding, we inserts into the mold, before pouring the concrete, sheaths 18 regularly distributed, every 50 cm for example, so as to arrange reservations for the positioning of the bars 13. These bars 13 consist of a simple cylindrical rod which is provided with '' a hook-shaped positioning and locking system 19 which, by simple gravity, is positioned on the angle 15, outside the post. The hook 19 allows the bar 13 to be automatically centered and retained on the post 1.
Compte-tenu du fruit du poteau 1, l'espace disponible entre les filants 6 et la cavité interne 5 s' amenuise au fur et à mesure que l'on approche du fond de cette cavité 5. Pour permettre la mise en place des fourreaux 18 sur toute la hauteur du poteau et en particulier dans la zone où se situe la cavité 5, le poteau comporte une surépaisseur au niveau de son angle 15. Cette surépaisseur 20 est obtenue au moyen d'un méplat 21 réalisé sur le noyau 3. Taking into account the fruit of the post 1, the space available between the struts 6 and the internal cavity 5 decreases as we approach the bottom of this cavity 5. To allow the placement of the sleeves 18 over the entire height of the post and in particular in the zone where the cavity 5 is located, the post has an additional thickness at its angle 15. This additional thickness 20 is obtained by means of a flat 21 produced on the core 3.
Dans la partie basse 10 du poteau 1, l'espace entre les filants 6 et le noyau 5 est suffisant pour positionner les fourreaux 18. Cet espace se réduit au fur et à mesure que l'on progresse vers l'extrémité 23 du noyau 3. In the lower part 10 of the post 1, the space between the struts 6 and the core 5 is sufficient to position the sleeves 18. This space is reduced as one progresses towards the end 23 of the core 3 .
Sur la figure 3, qui correspond à une section du noyau 3 à proximité de son extrémité supérieure 23, on remarque le méplat 21 qui permet de créer, dans l'angle 15 du poteau, une surépaisseur relativement importante de façon à loger le fourreau 18 et à noyer ce fourreau dans le béton. Ce méplat 21 peut être aménagé de la même façon sur tous types de noyaux, de section circulaire ou autre. In FIG. 3, which corresponds to a section of the core 3 near its upper end 23, there is the flat 21 which makes it possible to create, in the angle 15 of the post, a relatively large excess thickness so as to accommodate the sheath 18 and drown this sheath in concrete. This flat 21 can be arranged in the same way on all types of cores, circular section or other.
Les signes de référence insérés après les caractéristiques techniques mentionnées dans les revendications ont pour seul but de faciliter la compréhension de ces dernières et n'en limitent aucunement la portée. The reference signs inserted after the technical characteristics mentioned in the claims are intended only to facilitate the understanding of the latter and in no way limit their scope.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9208393A FR2693226B1 (en) | 1992-07-03 | 1992-07-03 | Improvement to reinforced concrete poles of the type including, in a corner, a layout to allow its climbing. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9208393A FR2693226B1 (en) | 1992-07-03 | 1992-07-03 | Improvement to reinforced concrete poles of the type including, in a corner, a layout to allow its climbing. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2693226A1 true FR2693226A1 (en) | 1994-01-07 |
FR2693226B1 FR2693226B1 (en) | 1994-10-14 |
Family
ID=9431649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9208393A Expired - Fee Related FR2693226B1 (en) | 1992-07-03 | 1992-07-03 | Improvement to reinforced concrete poles of the type including, in a corner, a layout to allow its climbing. |
Country Status (1)
Country | Link |
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FR (1) | FR2693226B1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR766260A (en) * | 1933-12-29 | 1934-06-25 | Collet Freres & Cie | Manufacturing process for reinforced concrete poles |
EP0447310A1 (en) * | 1990-03-12 | 1991-09-18 | Bouygues Offshore | Concrete tubular structure, especially for offshore structures |
-
1992
- 1992-07-03 FR FR9208393A patent/FR2693226B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR766260A (en) * | 1933-12-29 | 1934-06-25 | Collet Freres & Cie | Manufacturing process for reinforced concrete poles |
EP0447310A1 (en) * | 1990-03-12 | 1991-09-18 | Bouygues Offshore | Concrete tubular structure, especially for offshore structures |
Also Published As
Publication number | Publication date |
---|---|
FR2693226B1 (en) | 1994-10-14 |
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