EP1567735A1 - Coffrage en tissu pour colonnes et socles en beton - Google Patents

Coffrage en tissu pour colonnes et socles en beton

Info

Publication number
EP1567735A1
EP1567735A1 EP03758384A EP03758384A EP1567735A1 EP 1567735 A1 EP1567735 A1 EP 1567735A1 EP 03758384 A EP03758384 A EP 03758384A EP 03758384 A EP03758384 A EP 03758384A EP 1567735 A1 EP1567735 A1 EP 1567735A1
Authority
EP
European Patent Office
Prior art keywords
tube
concrete
pad
longitudinal
form element
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
EP03758384A
Other languages
German (de)
English (en)
Other versions
EP1567735B1 (fr
Inventor
Richard Neil Fearn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
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

Links

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 it's circular cross section. Because of the large diameters and lengths, transportation and storage is very expensive. In an effort to overcome these problems, it was proposed in US Patent Number 5,376,316 to have extremely thin and flexible paper walls, which would render the tube collapsible into a flat form so as to avoid the high transportation and storage expenses of the rigid cardboard tubes. While the use of the thin walls did make the tube collapsible, the following problems resulted: First, there was no means of holding the tube in position so that when filled with concrete, the column was correctly located.
  • 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.
  • 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 200 mm lumber, and the assembly is placed vertically into position and braced. Concrete is then poured into the fabric tube so that it take 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 the concrete forming tube used to form a column with a single longitudinal tab;
  • FIGURE 2 is a perspective view of the concrete forming tube used to form a pad with multiple longitudinal tabs
  • FIGURE 3 is a vertical cross section of the tube when expanded with concrete showing two longitudinal tabs, one zipper to enable the form to be reused, and three flexible sheet form elements welded or sewn together;
  • FIGURE 4 is a perspective view showing the length of tube being cut from a larger package, and the longitudinal tab being stapled to the first vertical support member;
  • FIGURE 5 is a perspective view showing the second vertical support member being nailed or screwed to the first vertical support member, thereby sandwiching the vertical support tab;
  • 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 fiat 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.
  • 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.

Landscapes

  • 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.
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 true EP1567735A1 (fr) 2005-08-31
EP1567735B1 EP1567735B1 (fr) 2012-06-06

Family

ID=32176503

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)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2297971B1 (es) * 2005-05-24 2009-08-24 Jesus Sanchez Reñasco Encofrado para columnas cilindricas.
US8286398B2 (en) * 2008-07-15 2012-10-16 Richard Fearn Monopour form
NO336311B1 (no) * 2010-03-12 2015-07-27 Mindor As Søyleforskaling.
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
MA46246A (fr) 2016-09-14 2019-07-24 Armatron Systems Llc Procédé de construction à base de ciment armé 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
CN110306727B (zh) * 2019-06-10 2021-07-02 山东科技大学 预制预应力钢管混凝土柱及施工方法
JP7224258B2 (ja) * 2019-08-19 2023-02-17 鹿島建設株式会社 プレファブ部材

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US821738A (en) * 1905-12-02 1906-05-29 Leverett A Pratt Mold for concrete posts.
US1510950A (en) * 1919-11-15 1924-10-07 Charles M Markham Round column clamp
US2505426A (en) * 1948-12-18 1950-04-25 O'flaherty Michael Method of molding concrete structures by means of collapsible tubular forms
US4790509A (en) * 1987-05-19 1988-12-13 Cardwell William L Tubular concrete form collar
US4854542A (en) * 1988-10-03 1989-08-08 Pruett M B Concrete column form
SE9101464D0 (sv) * 1991-05-15 1991-05-15 Lars Fredrik Forsbaeck Anordning foer eliminering av moebelhaelta
US5368269A (en) * 1992-07-14 1994-11-29 Alpha Forming Systems, Division Of Elco Concrete Co, Inc Adjustable bracing system for column forms
US5328142A (en) * 1992-07-17 1994-07-12 Sonoco Products Company Concrete column forming tube
SE506023C2 (sv) * 1992-10-09 1997-11-03 Anders Mohss Fristående vertikal gjutform för exempelvis plintar och pelare
JP3192277B2 (ja) * 1993-05-14 2001-07-23 新日本製鐵株式会社 コンクリート柱
US5580480A (en) * 1994-01-03 1996-12-03 Chatelain; Paul J. Form for making fence posts in situ
US5794387A (en) * 1997-03-20 1998-08-18 Musco Corporation Device and method to lift and manipulate poles which are mounted onto a base
FR2789706B1 (fr) * 1999-02-15 2001-04-13 Waterair Ind Procede d'etanconnement a l'aide de piliers de renfort d'une structure a parois verticales et pilier a cet effet
US6832454B1 (en) * 1999-07-28 2004-12-21 South Dakota School Of Mines And Technology Beam filled with material, deck system and method
JP3484156B2 (ja) * 1999-12-27 2004-01-06 構造品質保証研究所株式会社 構築物の補強方法及びその構造

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004038127A1 *

Also Published As

Publication number Publication date
JP2006504009A (ja) 2006-02-02
AU2003274402A1 (en) 2004-05-13
EP1567735B1 (fr) 2012-06-06
WO2004038127A1 (fr) 2004-05-06
US20080083190A1 (en) 2008-04-10
US20040128922A1 (en) 2004-07-08
MXPA05004260A (es) 2005-07-05
BR0315526A (pt) 2005-08-23

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