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FR2926576A1 - Guiderail stud step device, has ballast housed in central cylindrical barrel whose weight is related to buoyancy of device in liquid concrete bath, where barrel is limited at one end by closed base and at another rend by opening - Google Patents

Guiderail stud step device, has ballast housed in central cylindrical barrel whose weight is related to buoyancy of device in liquid concrete bath, where barrel is limited at one end by closed base and at another rend by opening Download PDF

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Publication number
FR2926576A1
FR2926576A1 FR0800258A FR0800258A FR2926576A1 FR 2926576 A1 FR2926576 A1 FR 2926576A1 FR 0800258 A FR0800258 A FR 0800258A FR 0800258 A FR0800258 A FR 0800258A FR 2926576 A1 FR2926576 A1 FR 2926576A1
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FR
France
Prior art keywords
barrel
ballast
opening
buoyancy
limited
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.)
Granted
Application number
FR0800258A
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French (fr)
Other versions
FR2926576B1 (en
Inventor
Fabrice Lalande
Thierry Peney
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KP1 SAS
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KP1 SAS
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Priority to FR0800258A priority Critical patent/FR2926576B1/en
Publication of FR2926576A1 publication Critical patent/FR2926576A1/en
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Publication of FR2926576B1 publication Critical patent/FR2926576B1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14Conveying or assembling building elements
    • E04G21/16Tools or apparatus
    • E04G21/18Adjusting tools; Templates
    • E04G21/1841Means for positioning building parts or elements
    • E04G21/185Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/0062Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects forcing the elements into the cast material, e.g. hooks into cast concrete
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/18Balustrades; Handrails
    • E04F11/181Balustrades
    • E04F11/1812Details of anchoring to the wall or floor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061Non-reusable forms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32Safety or protective measures for persons during the construction of buildings
    • E04G21/3204Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223Means supported by building floors or flat roofs, e.g. safety railings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Revetment (AREA)

Abstract

The device has a central cylindrical barrel limited at an end by a closed base and at another end by an opening (3) at the level of which the barrel is connected to stabilization floats (10-15) and cylindrical ballast (20). The ballast is housed in the barrel whose weight is related to the buoyancy of the device in a liquid concrete bath (B). Each float is formed by an open cup in same direction of the opening and connected to the barrel by arms (4-8) in form of caisson that is opened towards top.

Description

1 La présente invention concerne un organe d'emplanture d'un potelet dans une poutre ou une dalle de béton. ARRIERE PLAN DE L'INVENTION Une poutre ou une dalle de béton, qu'elle soit pré-fabriquée ou fabriquée in situ, présente l'inconvénient important, lorsqu'elle est en hauteur, de constituer une zone dangereuse pour un personnel d'opérateurs et d'ouvriers qui est exposé à un risque majeur de chute au bord de celle-ci, là où ce personnel est très souvent appelé à se tenir pour échanger avec du personnel au sol ou à apporter du matériel ou des produits qui proviennent du bas ou qui sont destinés à descendre. Il est donc nécessaire d'assurer la sécurité de ce 15 personnel en installant des barrières de protection le long des zones dangereuses. Dans le cas des poutres ou des dalles préfabriquées, on prévoit, en usine, la mise en place d'organes d'attente pour recevoir ces barrières de sécurité. Ces or-20 ganes d'attente sont généralement sous forme de fourreaux métalliques ou en matière plastique, insérés dans le béton en cours de durcissement. La position et surtout la verticalité de ces fourreaux est très difficiles à contrôler car leurs mises en place et leurs maintiens en position reste 25 relativement sommaire pour ne pas être consommateur de trop de temps. Il s'ensuit que des fourreaux légèrement inclinés dans le béton durci de la poutre mettent en péril la sécurité des opérateurs sur le chantier, du fait que les pote-lets de garde-corps peuvent être orientés vers le vide. 30 OBJET DE L'INVENTION Il convient de pallier les inconvénients des dispositifs connus et d'offrir aux entrepreneurs de travaux publics des organes en attente dans les poutres ou les dalles préfabriquées qui soient correctement disposés et orientés. 35 2 BREVE DESCRIPTION DE L'INVENTION A cet effet, l'invention a donc pour objet un dis-positif d'emplanture de potelet de garde-corps dans une poutre ou une dalle préfabriquée qui comporte un fût cylin- drique central, limité à une extrémité par un fond fermé et à une autre extrémité, par une ouverture au niveau de la-quelle le fût est relié à des flotteurs de stabilisation. Lorsque le béton vient d'être coulé dans un moule de poutre par exemple, un opérateur lâche le dispositif chargé de son lest (par exemple un tube en acier) dans le bain de béton dans lequel il s'enfonce jusqu'à ce que les flotteurs latéraux soient au contact de la surface libre du bain. Le dispositif est alors stabilisé et l'axe du lest est vertical, perpendiculaire à la surface libre du bain. The present invention relates to a root member of a post in a beam or slab of concrete. BACKGROUND OF THE INVENTION A concrete beam or slab, whether pre-fabricated or manufactured in situ, has the significant disadvantage that when it is at height, it constitutes a danger zone for a personnel of operators. and workers who are exposed to a major risk of falling on the edge of it, where this staff is very often called to hold to exchange with ground staff or to bring equipment or products that come from below or who are destined to go down. It is therefore necessary to ensure the safety of these personnel by installing protective barriers along the danger zones. In the case of beams or prefabricated slabs, it is expected, in the factory, the establishment of holding members to receive these safety barriers. These waiting-ganes are generally in the form of metal or plastic sleeves, inserted into the concrete during hardening. The position and especially the verticality of these sleeves is very difficult to control because their implementation and their position in position remains relatively brief so as not to consume too much time. As a result, slightly inclined sheaths in the hardened concrete of the beam jeopardize the safety of the operators on the construction site, because the guardrails of guardrails can be oriented towards the vacuum. OBJECT OF THE INVENTION It is necessary to overcome the disadvantages of known devices and to offer public works contractors bodies waiting in prefabricated beams or slabs that are properly arranged and oriented. BRIEF DESCRIPTION OF THE INVENTION To this end, the object of the invention is therefore a positive-displacement device for a guardrail post in a prefabricated beam or slab which comprises a central cylindrical shaft, limited to one end by a closed bottom and at another end, by an opening at which the barrel is connected to stabilization floats. When the concrete has just been poured into a beam mold for example, an operator looses the device loaded with its ballast (for example a steel tube) in the concrete bath into which it sinks until the side floats are in contact with the free surface of the bath. The device is then stabilized and the ballast axis is vertical, perpendicular to the free surface of the bath.

La prise du béton immobilise le dispositif duquel dans ce mode de réalisation, le lest peut être retiré et remplacé par un bouchon. Le dispositif est alors devenu un insert ou une réservation dans la poutre ou la dalle qui pourra ultérieurement, notamment sur chantier, accueillir un potelet de barrière de sécurité. De manière préférée, le dispositif est obtenu par injection de matière plastique de préférence de couleur vive pour être aisément repérable. On pourrait bien entendu prévoir des flotteurs et des bras de liaison pleins notamment si la matière plasti- que utilisée est de densité très inférieure à celle du béton. Mais pour s'affranchir de la nature de la matière plastique, une variante de ce mode de réalisation propose que chaque flotteur soit formé par une cuvette ouverte dans le même sens que l'ouverture du fût et soit reliée au fût par des bras en forme de goulotte également ouverts vers le haut. Dans un deuxième mode de réalisation, le fût est percé d'ouvertures dans sa paroi qui permettent le contact du lest et du béton. Le lest empêche le béton d'envahir l'espace intérieur du fût et reste ensuite prisonnier du 3 béton par adhérence lorsque ce dernier a pris. Dans cette variante, la fixation du potelet sur chantier est facilitée par la présence du lest qui constitue un moignon en attente du potelet tubulaire de garde-corps. The setting of the concrete immobilizes the device of which in this embodiment, the ballast can be removed and replaced by a plug. The device then became an insert or a reservation in the beam or slab that may later, especially on site, accommodate a safety barrier post. Preferably, the device is obtained by injection of plastic preferably bright color to be easily identifiable. Naturally, floats and solid link arms could be provided, especially if the plastic material used is of a much lower density than concrete. But to overcome the nature of the plastic, a variant of this embodiment proposes that each float is formed by a bowl open in the same direction as the opening of the barrel and is connected to the barrel by shaped arms chute also open up. In a second embodiment, the barrel is pierced with openings in its wall which allow the contact of ballast and concrete. The ballast prevents the concrete from invading the interior of the barrel and then remains trapped in the concrete by adhesion when the concrete has set. In this variant, the fixing of the post on site is facilitated by the presence of the ballast which constitutes a stump waiting for the tubular post of guardrail.

Dans une dernière variante, la paroi du fût est à double cloison avec un volume de flottaison entre elles. BREVE DESCRIPTION DES DESSINS Il sera fait référence aux dessins annexés parmi lesquels : - la figure 1 est une vue de dessous du dispositif de l'invention dépourvu de son lest, - la figure 2 est une vue de dessus de ce même dis-positif avec son lest logé dans un bain de béton. DESCRIPTION DETAILLEE DE L'INVENTION En référence aux figures, on constate que le dispositif de l'invention comporte en une seule pièce, par exemple en matière plastique injectée, un fût central 1 fermé par un fond 2 à son extrémité inférieure et comportant une ouverture 3 à son extrémité supérieure. A partir de cette extrémité supérieure, le fût 1 comporte des bras radiaux 4, 5, 6, 7 et 8 (le dernier des six bras étant caché par le fût lui-même) qui s'étendent vers l'extérieur du fût et portent à leur extrémité un flotteur 10, 11, 12, 13, 14 et 15 en forme de cuvette comme cela est visible sur la figure 2. A cette figure également, on remarque que les bras sont des caissons creux et ouverts vers le haut. Ainsi, le fût , les cuvettes et les bras forment-ils des compartiments flottants qui peuvent supporter et stabiliser une charge telle qu'un lest 20 placé dans le fût comme représenté à la figure 2. Le lest est ici un tube d'acier dont le diamètre extérieur est sensiblement égal au diamètre intérieur du fût. Sa longueur détermine son poids. Celui-ci est réglé de sorte que la flottabilité de l'ensemble support en matière plastique et lest en acier soit préservée. In a last variant, the barrel wall is double-walled with a flotation volume between them. BRIEF DESCRIPTION OF THE DRAWINGS Reference is made to the appended drawings in which: FIG. 1 is a view from below of the device of the invention without its ballast, FIG. 2 is a view from above of this same dis-positive with his ballast was lodged in a concrete bath. DETAILED DESCRIPTION OF THE INVENTION With reference to the figures, it can be seen that the device of the invention comprises, in one piece, for example in injected plastic material, a central shaft 1 closed by a bottom 2 at its lower end and having an opening 3 at its upper end. From this upper end, the barrel 1 comprises radial arms 4, 5, 6, 7 and 8 (the last of the six arms being concealed by the barrel itself) which extend outwardly of the barrel and carry at their end a float 10, 11, 12, 13, 14 and 15 in the form of a bowl as can be seen in Figure 2. In this figure also, we note that the arms are hollow boxes and open upwards. Thus, the barrel, cuvettes and arms form floating compartments that can support and stabilize a load such as a ballast 20 placed in the barrel as shown in FIG. 2. The ballast is here a steel tube of which the outer diameter is substantially equal to the inner diameter of the barrel. Its length determines its weight. This is adjusted so that the buoyancy of the support assembly made of plastic and steel ballast is preserved.

On comprend que lorsqu'un opérateur lâche le dispo- 4 sitif avec son lest, comme représenté à la figure 2, dans un bain B de béton, ce dispositif flotte à la surface du bain avec le lest stabilisé en position verticale. On comprend également de cette figure que l'invention concerne tout dispositif qui assure cette fonction de flottaison stabilisée d'un tronçon de tube pesant, quel que soit le nombre de flotteurs de stabilisation, leur dimension et leur répartition autour du fût central. La figure 1 fait apparaître des ouvertures 21 ména- gées dans la paroi du fût central. Ces ouvertures qui il-lustrent un autre mode de réalisation de l'invention, per-mettent au lest tubulaire 20 d'être en contact avec le béton du bain, avant sa prise, de sorte que le lest soit scellé dans la poutre ou la dalle après la prise du béton et en soit indémontable. En effet, dans la réalisation sans ouverture, le lest 20 peut être séparé du support en matière plastique qui seul demeure comme un insert ou une réservation dans la poutre ou la dalle depuis sa fabrication en usine jusqu'à sa mise en place sur chantier. Le fût est alors bouché par un bouchon rapporté pour éviter son obstruction par des graviers ou autres particules. La couleur de la matière plastique employée sera vive de manière à être bien visible sur la poutre ou la dalle. La section du fût représentée circulaire aux figu- res, peut affecter toute autre forme utile comme un carré, un polygone régulier ou non, ... selon la section de l'insert ou du potelet que ce fût accueillera. On aura également remarqué, à la figure 2, que cer- tains flotteurs tels que ceux 10 et 11 ou 14 et 15 sont ré- unis par un flotteur secondaire en caisson 22. On aura en- fin noté que les caissons qui forment les bras sont en forme de gousset pour raidir la liaison entre les flotteurs et le fût. Le flotteur secondaire 22 a également pour fonc- tion de s'opposer à la tendance des flotteurs 10 et 11 (de la figure 1) de se replier en direction du fût lors de l'enfoncement de ce dernier dans le bain de béton. Dans une dernière variante non représentée, on aura prévu de réaliser la paroi du fût 1 en double cloison avec entre elles un espace creux destiné par exemple à augmenter 5 la flottabilité du dispositif pour pouvoir supporter un in-sert plus lourd au point de constituer lui-même le lest pour le potelet de barrière de sécurité. It will be understood that when an operator releases the device with its ballast, as shown in FIG. 2, into a bath B of concrete, this device floats on the surface of the bath with the ballast stabilized in the vertical position. It is also understood from this figure that the invention relates to any device that provides this stabilized flotation function of a heavy section of tube, regardless of the number of stabilization floats, their size and their distribution around the central shaft. Figure 1 shows openings 21 arranged in the wall of the central shaft. These openings, which illustrate another embodiment of the invention, allow the tubular ballast 20 to be in contact with the concrete of the bath before it is set, so that the ballast is sealed in the beam or the beam. slab after the setting of the concrete and be indémontable. Indeed, in the embodiment without opening, the ballast 20 can be separated from the plastic support which alone remains as an insert or a reservation in the beam or slab from its manufacture in the factory until its implementation on site. The barrel is then plugged by a plug added to avoid its obstruction by gravel or other particles. The color of the plastic used will be bright so that it is clearly visible on the beam or slab. The section of the barrel represented circular to the figures, can affect any other useful form such as a square, a regular polygon or not, ... according to the section of the insert or post that it will host. It will also be noted in FIG. 2 that certain floats such as those 10 and 11 or 14 and 15 are assembled by a secondary float in box 22. It will be noted that the caissons which form the arms are shaped gusset to stiffen the connection between the floats and the barrel. The secondary float 22 also has the function of opposing the tendency of the floats 10 and 11 (of FIG. 1) to fold towards the drum when the latter is driven into the concrete bath. In a last variant not shown, there will be provided to realize the wall of the barrel 1 in double partition with between them a hollow space for example to increase the buoyancy of the device to be able to support an in-sert heavier to the point of constituting him - even the ballast for the safety barrier post.

Claims (4)

REVENDICATIONS 1. Dispositif d'emplanture de potelet garde-corps dans une poutre ou une dalle de béton, préfabriquées, caractérisé en ce qu'il comporte un fût (1) cylindrique cen- tral, limité à une extrémité par un fond (2) fermé et à une autre extrémité (3), par une ouverture au niveau de la-quelle le fût est relié à des flotteurs (10,11,12,13,14,15) de stabilisation et un lest (20) cylindrique logé dans le fût dont le poids est à la mesure de la flottaison du dis- positif dans un bain (B) de béton liquide. 1. Device for rooting of guardrail post in a prefabricated concrete beam or slab, characterized in that it comprises a central cylindrical shaft (1), limited at one end by a closed bottom (2). and at another end (3), by an opening at which the barrel is connected to floats (10,11,12,13,14,15) for stabilization and a cylindrical ballast (20) housed in the the weight of which is in proportion to the flotation of the device in a bath (B) of liquid concrete. 2. Dispositif selon la revendication 1, caractérisé en ce que chaque flotteur {10,11,12,13,14,15) est formé par une cuvette ouverte dans le même sens que l'ouverture (3) du fût (1) et reliée au fût par des bras (4,5,6,7,8) en forme de caissons également ouverts vers le haut. 2. Device according to claim 1, characterized in that each float {10,11,12,13,14,15) is formed by a bowl open in the same direction as the opening (3) of the barrel (1) and connected to the barrel by arms (4,5,6,7,8) in the form of boxes also open upwards. 3. Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que le fût (1) est percé d'ouvertures (21) dans sa paroi qui permettent le contact du lest (20) et du béton. 3. Device according to claim 1 or claim 2, characterized in that the shaft (1) is pierced with openings (21) in its wall which allow the contact ballast (20) and concrete. 4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la paroi du fût (1) est à double cloison avec un volume de flottaison entre elles. 4. Device according to one of the preceding claims, characterized in that the wall of the shaft (1) is double wall with a flotation volume between them.
FR0800258A 2008-01-18 2008-01-18 MEMBER FOR EMPLOYING A POTELET IN A CONCRETE BEAM OR SLAB Active FR2926576B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0800258A FR2926576B1 (en) 2008-01-18 2008-01-18 MEMBER FOR EMPLOYING A POTELET IN A CONCRETE BEAM OR SLAB

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FR0800258A FR2926576B1 (en) 2008-01-18 2008-01-18 MEMBER FOR EMPLOYING A POTELET IN A CONCRETE BEAM OR SLAB

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FR2926576A1 true FR2926576A1 (en) 2009-07-24
FR2926576B1 FR2926576B1 (en) 2016-03-04

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2662509A1 (en) * 2012-05-09 2013-11-13 FEHR Groupe Device for attaching an object to a prefabricated wall of a building and system for mounting a railing on a prefabricated wall comprising such an attachment device
CN107083844A (en) * 2017-06-22 2017-08-22 吉林建筑大学 It is a kind of to contain the device and method that cast-in-situ concrete hollow slab internal model floats
US20210262227A1 (en) * 2020-02-26 2021-08-26 Ut-Battelle, Llc Non-corroding stripping lifting inserts for precast insulated panels

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1460277A1 (en) * 2003-03-11 2004-09-22 DOKA Industrie GmbH Anchorage sleeve for railings
US20050120666A1 (en) * 2003-12-05 2005-06-09 Alyea Mark D. Concrete anchor float
US20050241263A1 (en) * 2002-06-27 2005-11-03 Van Rijn Robertus C M Method for arranging engagement means in a concrete part

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050241263A1 (en) * 2002-06-27 2005-11-03 Van Rijn Robertus C M Method for arranging engagement means in a concrete part
EP1460277A1 (en) * 2003-03-11 2004-09-22 DOKA Industrie GmbH Anchorage sleeve for railings
US20050120666A1 (en) * 2003-12-05 2005-06-09 Alyea Mark D. Concrete anchor float

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2662509A1 (en) * 2012-05-09 2013-11-13 FEHR Groupe Device for attaching an object to a prefabricated wall of a building and system for mounting a railing on a prefabricated wall comprising such an attachment device
CN107083844A (en) * 2017-06-22 2017-08-22 吉林建筑大学 It is a kind of to contain the device and method that cast-in-situ concrete hollow slab internal model floats
US20210262227A1 (en) * 2020-02-26 2021-08-26 Ut-Battelle, Llc Non-corroding stripping lifting inserts for precast insulated panels
US11661741B2 (en) * 2020-02-26 2023-05-30 Ut-Battelle, Llc Non-corroding stripping lifting inserts for precast insulated panels

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