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EP1567735B1 - Coffrage en tissu pour colonnes et socles en beton - Google Patents

Coffrage en tissu pour colonnes et socles en beton Download PDF

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Publication number
EP1567735B1
EP1567735B1 EP03758384A EP03758384A EP1567735B1 EP 1567735 B1 EP1567735 B1 EP 1567735B1 EP 03758384 A EP03758384 A EP 03758384A EP 03758384 A EP03758384 A EP 03758384A EP 1567735 B1 EP1567735 B1 EP 1567735B1
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EP
European Patent Office
Prior art keywords
flexible sheet
flexible
sheet element
longitudinal
forming tube
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.)
Expired - Lifetime
Application number
EP03758384A
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German (de)
English (en)
Other versions
EP1567735A1 (fr
Inventor
Richard Fearn
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Fearn Richard Neil
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Fearn Richard Neil
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Filing date
Publication date
Application filed by Fearn Richard Neil filed Critical Fearn Richard Neil
Publication of EP1567735A1 publication Critical patent/EP1567735A1/fr
Application granted granted Critical
Publication of EP1567735B1 publication Critical patent/EP1567735B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
    • E04G13/021—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor for circular columns

Definitions

  • This invention relates generally to a concrete column and pad forming tube made of a fabric like material for receiving a flowable and settable material poured into the interior of the tube so as to form a round column or pad upon the hardening of the material, and which is characterized by folding flat for storage and shipping, while at the same time being able to be accurately positioned on the job site.
  • Concrete column forming tubes are conventionally formed of multiple layers of paper, which are spirally wound around a mandrel and with a wall thickness of about 6 mm so that the tube is rigid and maintains its circular cross section. Because of the large diameters and lengths, transportation and storage is very expensive.
  • the patent contemplates an alternative for vertically supporting the tube by cutting a series of notches in the upper end, which are folded outwardly over a circular supporting framework. Again, this would require additional bracing and labor, obviating the benefits of the collapsible form.
  • DE-U-9200496 discloses a method of forming concrete columns using mouldable fibre plates.
  • the tube for the concrete columns is formed by joining adjacent plates together. The ends of two adjacent plates are joined to form a longitudinal tab to be supported by extra inserts.
  • Such forming tubes may be fabricated from fabric with one or more longitudinal tabs running the full length of the tube. Each tab is sandwiched between two vertical support members, which are used to properly locate the tube on the job site, before filling with concrete.
  • a prefabricated flexible forming tube for a concrete column or pad comprising: at least one flexible sheet element of specified width characterized in that the flexible sheet element is formed from woven fabric, and one longitudinal edge of said flexible sheet element is arranged in overlapping relationship with either:
  • This invention also contemplates the use of a woven fabric of sufficient strength that bulging will not occur, while at the same time being able to fold flat.
  • the fabric is joined into a tube by welding, sewing or zippering the edges together.
  • the fabric based forming tube is collapsed and folded into a small package to facilitate its storage and transportation.
  • the contractor cuts off the exact length of tube required for the column.
  • the fabric tab is nailed or screwed between two vertical support members probably made from 75mm by 200mm lumber, and the assembly is placed vertically into position and braced. Concrete is then poured into the fabric tube so that it takes a cylindrical configuration across from the two vertical support members. After the concrete is hardened, the fabric tube can be left in place, or removed at the weld, zipper, or cut with a sharp knife.
  • FIGURE 1 is a perspective view of a preferred embodiment of a concrete forming tube used in accordance with the present invention as a concrete column and which is indicated generally at 10.
  • the flexible sheet form element, or fabric 14 is joined to form a tube with the outside longitudinal edge forming a longitudinal tab 16.
  • the longitudinal tab 16 can be seen at the top, sandwiched between the two vertical support members 18, 20.
  • the vertical support members are braced with suitable lumber 22, and stakes 30 are used to support the lower end of each brace 22.
  • FIGURE 2 is a perspective view of a preferred embodiment of a concrete forming tube 12 used in accordance with the present invention as a concrete footing pad and which is indicated generally at 28.
  • Stakes 30 are driven into the ground just outside the circumference of the proposed circular pad 28.
  • the desired length of fabric tube 42 is cut with a utility knife 52 from the longer length 40, and the longitudinal tabs 16 are stapled 34 to each stake 30 to support the tube in the correct position.
  • Larger diameter pads could have a multiplicity of longitudinal tabs and supporting stakes. Pads could range in diameter from 450 mm up to 3000 mm, with the fabric tube welded or sewn together to achieve these diameters.
  • Concrete 26 is placed inside the tube, and trowelled flat to the top of the fabric tube 12.
  • FIGURE 3 is a cross section of the fabric tube 12 expanded as if by the concrete to show manufacturing details.
  • Three flexible sheet form elements 14 of indefinite length and a specific width are welded or sewn together at points 36 to form the correct diameter for the column or pad. Welding is the preferable method of joining as sewing can weaken the joint and create small holes for the concrete to leak out.
  • the longitudinal tabs run the full length of the tube, with a width 38 running past the joining width 36. This longitudinal tab is sandwiched between the two vertical support members 18, 20 to support the tube in the vertical position for proper location during the concrete pour.
  • the width of the longitudinal tab 38 is usually the same as the width of the vertical support members 18, 20 to ensure proper positioning of the tab.
  • the manufacturing process must accurately align and weld the fabric so that the correct diameter of the inflated tube is achieved. As the diameter of the tube increases, the hoop tension of the fabric will increase because of the increased concrete pressure. Therefore the thickness of the fabric and the width of the welded or sewn joint must be correspondingly increased.
  • a zipper 44 is shown in FIGURE 3 .
  • the zipper would be used where it is desirable to recycle the tube form to lower forming costs.
  • the zipper would also have applications where it is needed to place a concrete column around an existing steel column, for example to protect a steel column in a warehouse from damage.
  • the fabric overlap 46 protects the zipper from concrete damage when filling with concrete.
  • the zipper would be either welded or sewn to the fabric.
  • Velcro or sticky tape 48 may be required to ensure the overlap stays flat when filling to protect the zipper from concrete damage.
  • the flexible sheet form element 14 is typically made from a woven polyethylene or polypropylene material, with about 12 tapes per inch in the warp and weft direction.
  • the tapes are high density to achieve strength, and a low-density coating on either or both sides of the scrim could be added to ensure the concrete does not leak through the fabric. It would also be possible to increase the fabric strength by adding warp and weft elements made of carbon fiber, for example, which, when left in place would provide external reinforcing to the concrete.
  • FIGURE 4 is an isometric view showing the fabric tube 12 being cut to the length 42 of a desired column 10, and the longitudinal tab 16 being positioned and stapled 34 to the first vertical support member 18.
  • the tube shape and fabric thickness would only allow the tube to be wound on very large diameter rolls as otherwise the fabric will wrinkle excessively. Therefore packaging of the tube would be on very large rolls and folded, or festooned 40.
  • FIGURE 5 is an isometric view showing the second vertical support member 20 being attached to the first member 18 using nails or screws 50.
  • the two vertical support members provide support to the longitudinal tab and therefore to the fabric tube during the pouring of concrete.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

La présente invention concerne un manchon pour béton souple et léger qui permet de former des colonnes et des socles en béton, le manchon possédant une paroi très mince dans un tissu de haute résistance et une patte longitudinale de tissu s'étendant sur la longueur du manchon. La patte est intercalée entre deux organes de support verticaux en bois. Les organes de support verticaux et le manchon en tissu qui leur est attaché sont ensuite mis en place avec précision et renforcés par des lattes diagonales. Au fur et à mesure que l'intérieur du manchon se remplit de béton, la pression hydrostatique lui fait adopter une forme cylindrique, lui permettant de la sorte de s'aligner précisément sur les organes de support verticaux. L'utilisation de tissu prévient les problèmes associés à l'utilisation de coffrages en carton, qui s'affaiblissent lorsqu'ils sont exposés à l'humidité.

Claims (13)

  1. Tube de coffrage flexible préfabriqué (12) pour une colonne (26) ou socle (26) en béton comprenant : au moins un élément de feuille flexible (14) de largeur spécifiée, caractérisé en ce que l'élément de feuille flexible est formé à partir d'un tissu tissé, et un bord longitudinal dudit élément de feuille flexible (14) est agencé en relation de chevauchement avec :
    i) un bord longitudinal opposé du même élément de feuille flexible (14) moyennant quoi une surface extérieure dudit élément de feuille flexible (14) adjacent à l'un desdits bords longitudinaux est fixée sur une surface intérieure dudit élément de feuille flexible (14) afin de former un joint (36) et de créer ledit tube de coffrage flexible (12) et une languette longitudinale (16) est formée à partir dudit élément de feuille flexible (14) entre un autre desdits bords longitudinaux et ledit joint (36) ; ou bien
    ii) un bord longitudinal d'un autre desdits éléments de feuille flexible (14) moyennant quoi une surface extérieure adjacente au bord longitudinal de l'un desdits éléments de feuille flexible (14) est fixée sur une surface intérieure de l'autre desdits éléments de feuille flexible (14) afin de former un joint (36) et une languette longitudinale (16) est formée à partir dudit autre élément de feuille flexible (14) entre le joint (36) et ledit bord longitudinal dudit autre élément de feuille flexible (14), de sorte que lesdits éléments de feuille flexible (14) assemblés créent au moins une partie dudit tube de coffrage flexible (12), de sorte que la multiplicité d'éléments de coffrage en feuille flexible assemblés forme un tube de diamètre spécifique avec une multiplicité de languettes longitudinales.
  2. Tube de coffrage flexible préfabriqué (12) selon la revendication 1, dans lequel ledit tube (12) est formé à partir d'une multiplicité desdits éléments de feuille flexible (14), les éléments de feuille flexible (14) adjacents de ladite multiplicité étant fixés ensemble selon la revendication 1, afin de former deux desdits joints (36) ou plus, chaque joint (36) ayant une languette longitudinale (16) associée.
  3. Tube de coffrage flexible préfabriqué (12) selon la revendication 1 ou la revendication 2, dans lequel au moins deux desdits éléments de feuille flexible (14) sont longitudinalement assemblés par des moyens d'assemblage temporaires (44).
  4. Tube de coffrage flexible préfabriqué (12) selon la revendication 3, dans lequel lesdits moyens d'assemblage temporaires sont une fermeture éclair (44).
  5. Tube de coffrage flexible préfabriqué (12) selon la revendication 1 ou la revendication 2, dans lequel ledit tissu tissé a une nature telle qu'il se fixe sur une colonne ou socle en béton formé(e) en amenant dans ledit tube de coffrage, un matériau de fondation (26), et ledit tissu tissé ne peut pas être détaché de ladite colonne ou socle en béton.
  6. Tube de coffrage flexible préfabriqué (12) selon la revendication 5, dans lequel ledit tissu tissé contient des éléments de chaîne et/ou de trame à haute résistance pour ajouter de la résistance structurelle à ladite colonne ou socle en béton (26).
  7. Tube de coffrage flexible préfabriqué (12) selon la revendication 6, dans lequel lesdits éléments de chaîne et/ou trame sont réalisés à partir de fibres de carbone.
  8. Procédé pour construire une colonne en béton (26) comprenant l'étape consistant à :
    1) former un tube de coffrage flexible préfabriqué (12) pour ladite colonne en béton (26), caractérisé par les étapes consistant à :
    a) prévoir au moins un élément de feuille flexible (14) de longueur indéfinie et de largeur spécifiée, formé à partir de tissu tissé, ledit élément de feuille flexible (14) ayant un bord longitudinal ;
    b) agencer ledit bord longitudinal selon une relation de chevauchement avec :
    i) un bord longitudinal opposé du même élément de feuille flexible (14) ; fixer une surface extérieure dudit élément de feuille flexible (14) adjacent à l'un desdits bords longitudinaux, sur une surface intérieure dudit élément de feuille flexible (14) afin de former un joint (36) et créer ainsi ledit tube de coffrage flexible (12) ayant une longueur indéfinie et un diamètre spécifique ; ledit tube de coffrage flexible (12) ayant une languette longitudinale (16) formée à partir dudit élément de feuille flexible (14) entre un autre desdits bords longitudinaux et ledit joint (36) ; ou bien
    ii) un bord longitudinal d'un autre desdits éléments de feuille flexible (14) ; fixer une surface extérieure de l'un desdits éléments de feuille flexible (14) adjacent à un bord longitudinal dudit élément de feuille flexible (14), sur une surface intérieure de l'autre desdits éléments de feuille flexible (14) afin de former un joint (36) et créer ainsi au moins une partie d'un tube de coffrage flexible (12) de longueur indéfinie, ladite au moins une partie dudit tube de coffrage flexible (12) ayant une languette longitudinale (16) formée à partir de l'autre desdits éléments de feuille flexible (14) entre ledit joint (36) et ledit bord longitudinal de l'autre desdits éléments de feuille flexible (14), de sorte que la multiplicité d'éléments de coffrage en feuille flexible assemblés forme un tube de diamètre spécifique avec une multiplicité de languettes longitudinales ;
    ledit procédé comprenant en outre les étapes consistant à :
    2) découper une longueur spécifiée dudit tube de coffrage flexible préfabriqué (12), ladite longueur spécifiée étant égale à la hauteur souhaitée pour ladite colonne en béton (26) ;
    3) prendre en sandwich ladite languette longitudinale (16) entre une paire d'éléments de support verticaux (18, 20) ;
    4) positionner et renforcer lesdits éléments de support verticaux (18, 20) avec des éléments d'entretoisement (22, 30) de sorte que ledit tube de coffrage flexible (12) est positionné dans une position dans laquelle ladite colonne en béton (26) doit être construite ; et
    5) amener un matériau de fondation liquide et durcissable (26) pour remplir sensiblement l'espace à l'intérieur dudit tube de coffrage flexible (12), afin de former ladite colonne en béton (26).
  9. Procédé pour construire une colonne en béton (26) selon la revendication 8, dans lequel :
    1) ladite étape consistant à former ledit tube de coffrage flexible préfabriqué (12) comprend l'étape consistant à assembler une multiplicité desdits éléments de feuille flexible (14), les éléments de feuille flexible (14) adjacents de ladite multiplicité étant fixés ensemble selon la revendication 8, afin de former deux desdits joints (36) ou plus, chacun desdits joints (36) ayant une languette longitudinale (16) associée ;
    2) ladite étape consistant à prendre en sandwich ladite languette longitudinale (16) comprend l'étape consistant à prendre en sandwich chacune desdites languettes longitudinales entre des paires d'éléments de support verticaux ; et
    3) ladite étape de positionnement et de renforcement comprend l'étape consistant à positionner et à renforcer chaque paire d'éléments de support verticaux (18, 20) avec des éléments d'entretoisement (22, 30).
  10. Procédé pour construire une colonne en béton (26) selon la revendication 8 ou 9, dans lequel ledit tube de coffrage flexible (12) est laissé en place autour de ladite colonne en béton.
  11. Procédé pour construire un socle en béton (26) comprenant l'étape consistant à :
    1) former un tube de coffrage flexible préfabriqué (12) pour ledit socle en béton (26), caractérisé par les étapes consistant à :
    a) prévoir au moins un élément de feuille flexible (14) de longueur indéfinie et de largeur spécifiée, formé à partir d'un tissu tissé, ledit élément de feuille flexible (14) ayant un bord longitudinal ;
    b) agencer ledit bord longitudinal selon une relation de chevauchement avec :
    i) un bord longitudinal opposé du même élément de feuille flexible (14) ; fixer une surface extérieure dudit élément de feuille flexible (14) adjacent à l'un desdits bords longitudinaux, sur une surface intérieure dudit élément de feuille flexible (14) afin de former un joint (36) et de créer ainsi ledit tube de coffrage flexible (12) ayant une longueur indéfinie et un diamètre spécifique ; ledit tube de coffrage flexible (12) ayant une languette longitudinale (16) formée à partir dudit élément de feuille flexible (14) entre un autre desdits bords longitudinaux et ledit joint (36) ; ou bien
    ii) un bord longitudinal d'un autre desdits éléments de feuille flexible (14) ; fixer une surface extérieure de l'un desdits éléments de feuille flexible (14) adjacent à un bord longitudinal dudit élément de feuille flexible (14), sur une surface intérieure de l'autre desdits éléments de feuille flexible (14) afin de former un joint (36) et de créer ainsi au moins une partie dudit tube de coffrage flexible (12) de longueur indéfinie, ladite au moins une partie dudit tube de coffrage flexible (12) ayant une languette longitudinale (16) formée à partir de l'autre desdits éléments de feuille flexible (14) entre ledit joint (36) et ledit bord longitudinal de l'autre desdits éléments de feuille flexible (14), de sorte que la multiplicité d'éléments de coffrage de feuille flexible assemblés forme un tube de diamètre spécifique avec une multiplicité de languettes longitudinales ;
    ledit procédé comprenant en outre les étapes consistant à :
    2) découper une longueur spécifiée dudit tube de coffrage flexible préfabriqué (12), ladite longueur spécifiée étant égale à la hauteur souhaitée pour ledit socle en béton (26) ;
    3) positionner un pieu (30) autour d'un emplacement souhaité pour ledit socle en béton (26) ;
    4) fixer (34) ladite languette longitudinale (16) sur ledit pieu (30) afin de positionner ledit tube de coffrage flexible (12) dans ledit emplacement souhaité ;
    5) amener un matériau de fondation liquide et durcissable (26) pour remplir sensiblement l'espace à l'intérieur dudit tube de coffrage flexible (12), afin de former ledit socle en béton (26).
  12. Procédé pour construire un socle en béton (26) selon la revendication 11, dans lequel :
    1) ladite étape consistant à former ledit tube de coffrage flexible préfabriqué (12) comprend l'étape consistant à assembler une multiplicité desdits éléments de feuille flexible (14), les éléments de feuille flexible (14) adjacents de ladite multiplicité étant fixés ensemble selon la revendication 11, afin de former deux desdits joints (36) ou plus, chacun desdits joints (36) ayant une languette longitudinale (16) associée ;
    2) ladite étape consistant à positionner ledit pieu comprend l'étape consistant à positionner un pieu (30) pour chacune desdites languettes longitudinales (16) autour dudit emplacement souhaité, l'espacement entre les pieux adjacents étant identique à l'emplacement entre les languettes longitudinales (16) adjacentes ; et
    3) ladite étape de fixation comprend l'étape consistant à fixer chaque languette longitudinale (16) sur un pieu (30) respectif.
  13. Procédé pour construire un socle en béton (26) selon la revendication 10, dans lequel ledit tube de coffrage flexible (12) est laissé en place autour dudit socle en béton (26).
EP03758384A 2002-10-22 2003-10-22 Coffrage en tissu pour colonnes et socles en beton Expired - Lifetime EP1567735B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US42002902P 2002-10-22 2002-10-22
US420029P 2002-10-22
PCT/IB2003/004633 WO2004038127A1 (fr) 2002-10-22 2003-10-22 Coffrage en tissu pour colonnes et socles en beton

Publications (2)

Publication Number Publication Date
EP1567735A1 EP1567735A1 (fr) 2005-08-31
EP1567735B1 true EP1567735B1 (fr) 2012-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03758384A Expired - Lifetime EP1567735B1 (fr) 2002-10-22 2003-10-22 Coffrage en tissu pour colonnes et socles en beton

Country Status (7)

Country Link
US (2) US20040128922A1 (fr)
EP (1) EP1567735B1 (fr)
JP (1) JP2006504009A (fr)
AU (1) AU2003274402A1 (fr)
BR (1) BR0315526A (fr)
MX (1) MXPA05004260A (fr)
WO (1) WO2004038127A1 (fr)

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CN110306727A (zh) * 2019-06-10 2019-10-08 山东科技大学 预制预应力钢管混凝土柱及施工方法

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US8286398B2 (en) * 2008-07-15 2012-10-16 Richard Fearn Monopour form
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US9097017B1 (en) * 2012-11-04 2015-08-04 Hector Vanlennep Easy fit concealed post anchor system
US10344443B2 (en) * 2016-05-09 2019-07-09 Gaétan GENEST Foundation for the support of a structure and method of installation
CA3036127A1 (fr) 2016-09-14 2018-03-22 Armatron Systems, LLC Procede de construction a base de ciment arme par impression par extrusion rapide et appareil pour son utilisation
US9915064B1 (en) * 2016-11-11 2018-03-13 Mark E. Sanders Method and apparatus for reducing propagation of cracks in concrete
JP7224258B2 (ja) * 2019-08-19 2023-02-17 鹿島建設株式会社 プレファブ部材

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110306727A (zh) * 2019-06-10 2019-10-08 山东科技大学 预制预应力钢管混凝土柱及施工方法

Also Published As

Publication number Publication date
US20040128922A1 (en) 2004-07-08
AU2003274402A1 (en) 2004-05-13
US20080083190A1 (en) 2008-04-10
MXPA05004260A (es) 2005-07-05
BR0315526A (pt) 2005-08-23
WO2004038127A1 (fr) 2004-05-06
JP2006504009A (ja) 2006-02-02
EP1567735A1 (fr) 2005-08-31

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