EP1553245A1 - Disposable formwork for columns having a circular section - Google Patents

Disposable formwork for columns having a circular section Download PDF

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Publication number
EP1553245A1
EP1553245A1 EP03757079A EP03757079A EP1553245A1 EP 1553245 A1 EP1553245 A1 EP 1553245A1 EP 03757079 A EP03757079 A EP 03757079A EP 03757079 A EP03757079 A EP 03757079A EP 1553245 A1 EP1553245 A1 EP 1553245A1
Authority
EP
European Patent Office
Prior art keywords
formwork
column
circular section
tubular body
fibreglass
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.)
Withdrawn
Application number
EP03757079A
Other languages
German (de)
English (en)
French (fr)
Inventor
José Manuel Valero Salinas
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 EP1553245A1 publication Critical patent/EP1553245A1/en
Withdrawn legal-status Critical Current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
    • 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

  • the present invention refers to a disposable formwork, especially conceived to produce cylindrical columns, for example using reinforced concrete.
  • the object of the invention is to achieve a formwork that allows perfectly cylindrical columns to be achieved.
  • invention patent 200001776 envisages that the rigid bands fixed using adhesive strips of the above patent are replaced by a single board, also with a plastic-coated internal surface, which is subjected to a number of longitudinal cuts on its external surface to permit the required deformation thereof, so that, in turn, it may be transformed from its original, flat configuration into a cylindrical configuration.
  • these cuts or slots in its external surface make the board deform in an irregular manner, obviously most accentuated on the lines corresponding to said cuts which, in practice , entails that the final result is not a perfect cylinder either, but rather that its section is also polygonal.
  • invention patent No. 9902893 Machine for applying fibreglass reinforcement to disposable formwork for columns
  • Invention Patent application "Formwork for prismatic or cylindrical columns” with application number 200002631 also of the applicant, which envisages that the surrounding fibreglass mesh that gives the formwork the necessary mechanical resistance be replaced by a strip of a self-adhesive nature, consisting of paper or similar, wherein the fibreglass threads would be embedded and which exclusively adopt a longitudinal arrangement (instead of forming a mesh) which, after wrapping said strip on the formwork, makes the fibreglass threads adopt an appreciably transversal arrangement with respect to the formwork's axis, thus eliminating longitudinal threads that, due to their own situation, are inoperative according to the pursued object.
  • the disposable formwork proposed by the invention starting from the basic premise of the abovementioned patents, i.e. establishing a tubular body reinforced externally through fibreglass threads, either in the shape of a mesh or embedded in a paper or similar support allowing the production of a perfectly cylindrical column, meaning a perfectly circular section, with an absence of any type of edge or roughness in its surface.
  • the formwork is structured using a smooth rigid plastic plate, such as, for example, made of high impact polystyrene (HDPE) or other similar material, a plate that adopts a perfectly cylindrical configuration when wrapped around an inflatable assembly core, obviously of a cylindrical configuration and with an external diameter equal to the diameter of the concrete column to be produced, joining the two complementary edges of said smooth plastic plate using self-adhesive tape.
  • a smooth rigid plastic plate such as, for example, made of high impact polystyrene (HDPE) or other similar material, a plate that adopts a perfectly cylindrical configuration when wrapped around an inflatable assembly core, obviously of a cylindrical configuration and with an external diameter equal to the diameter of the concrete column to be produced, joining the two complementary edges of said smooth plastic plate using self-adhesive tape.
  • HDPE high impact polystyrene
  • the thus produced tubular body is complemented with the external surround structure based on fibreglass threads, whether in the shape of a mesh or independent threads embedded in a paper support or similar.
  • the elasticity of the rigid plastic used allows its transformation into a cylinder without the need for making cuts in its external surface or any other type of manipulations and said smooth plate, precisely because of its continuous thickness, ensures a perfectly cylindrical internal surface for the formwork which, in turn, determines a perfectly cylindrical section, i.e. not polygonal, for the column to be produced.
  • the inflatable nature of the assembly core that has been referred to above has the purpose of facilitating the latter's disassembly once the formwork has been produced by deflating said core.
  • a smooth plate (1) of rigid plastic is used, such as, for example, rectangular, high impact polyethylene, , with a length equal to the envisaged height of the column to be produced, with a width in turn coinciding with the evolution of the section of said column, in other words with said section's circumference.
  • This plastic plate (1) is arched or wrapped around an assembly core (2), cylindrical, formally and dimensionally coinciding with the column to be produced, in such a way that the plate (1) comes back into contact with itself along its longitudinal or vertical edges (3-3') adopting a tubular and perfectly cylindrical shape, which is stabilised , in principle , with the help of adhesive tape (4) as shown in the enlarged detail of figure 3.
  • a reinforcing strip (5) may be applied externally, of the same rigid plastic as the plate (1) and length coinciding with length thereof, that is fixed to it with the help of a pair of adhesive tapes (4-4') or a much wider single adhesive tape, as shown in the detail of figure 4, a strip (5) that may have a varying width but , for the pursued object, can have a size between 4 and 5 cm.
  • the tubular body thus produced is externally reinforced with the classic helicoidal casing on the basis of a fibreglass mesh or a series of fibreglass threads embedded longitudinally and equidistantly on a paper support or similar, to provide the tubular body, and especially the joint (3-3') thereof, with the appropriate stability and mechanical resistance against radial pressure exerted by the concrete when poured inside the formwork, obviously after first removing the core (2) used during its assembly, and whose inflatable nature allows for an incredibly fast and simple disassembly.

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)
EP03757079A 2002-06-11 2003-06-06 Disposable formwork for columns having a circular section Withdrawn EP1553245A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200201340A ES2197017B1 (es) 2002-06-11 2002-06-11 Encofrado desechable para columnas con seccion circular.
ES200201340 2002-06-11
PCT/ES2003/000275 WO2003104586A1 (es) 2002-06-11 2003-06-06 Encofrado desechable para columnas con sección circular

Publications (1)

Publication Number Publication Date
EP1553245A1 true EP1553245A1 (en) 2005-07-13

Family

ID=29724725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03757079A Withdrawn EP1553245A1 (en) 2002-06-11 2003-06-06 Disposable formwork for columns having a circular section

Country Status (11)

Country Link
US (1) US20050247852A1 (ko)
EP (1) EP1553245A1 (ko)
JP (1) JP2005529259A (ko)
KR (1) KR20050004268A (ko)
CN (1) CN1653239A (ko)
AU (1) AU2003242788A1 (ko)
BR (1) BR0305099A (ko)
CA (1) CA2486149A1 (ko)
ES (1) ES2197017B1 (ko)
MX (1) MXPA04011490A (ko)
WO (1) WO2003104586A1 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8313080B2 (en) * 2007-02-15 2012-11-20 Abzac Canada Inc. Retaining device for assembling two panels, recyclable formwork for forming a concrete structure and packaging assembly using the same
WO2008098372A1 (en) 2007-02-15 2008-08-21 Abzac Canada Inc. Retaining device for assembling two panels, recyclable formwork for forming a concrete structure and packaging assembly using the same
WO2009079702A1 (en) * 2007-12-21 2009-07-02 Ezytube Pty Limited Multi-part tube and method of assembly
KR101151344B1 (ko) * 2011-07-22 2012-06-08 이피아이주식회사 종이거푸집
CN107675879A (zh) * 2017-11-21 2018-02-09 成都市绿洲节水灌溉工程有限公司 一种通过卡槽固定的景观柱成型设备
CN107829558A (zh) * 2017-11-21 2018-03-23 成都市绿洲节水灌溉工程有限公司 一种景观柱浇筑成型装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783173A (en) * 1954-07-01 1957-02-26 Resistoflex Corp Method of making laminated tubing
US3357457A (en) * 1964-04-30 1967-12-12 Hughes Aircraft Co Collapsible tubular structure
US3942753A (en) * 1973-07-11 1976-03-09 Sachs Carrol C Pneumatic means for production of molded structures
US3956437A (en) * 1973-07-16 1976-05-11 Ellis Joseph O Method and apparatus for casting a concrete column
US4255071A (en) * 1979-08-27 1981-03-10 Bochumer Eisenhutte Heintzmann Gmbh & Co. Supporting of excavation roofs
US4347090A (en) * 1980-10-24 1982-08-31 Bunnell Plastics, Inc. Process for forming laminated pipe
CA1217949A (en) * 1984-02-20 1987-02-17 Paul Goodwin Concrete forming apparatus and method of manufacturing same
ES285757Y (es) * 1985-03-29 1986-05-16 Rochette Carton Transforme,S.A. Tubo de encofrado para el hormigon
CH684492A5 (de) * 1991-11-25 1994-09-30 Construmat Ag Schalung für Betonstützen.
FR2775924B1 (fr) * 1998-03-10 2000-04-14 Inteiss Moule realise a l'aide d'au moins une structure gonflable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03104586A1 *

Also Published As

Publication number Publication date
ES2197017A1 (es) 2003-12-16
KR20050004268A (ko) 2005-01-12
AU2003242788A1 (en) 2003-12-22
JP2005529259A (ja) 2005-09-29
BR0305099A (pt) 2004-07-27
CN1653239A (zh) 2005-08-10
ES2197017B1 (es) 2005-02-01
US20050247852A1 (en) 2005-11-10
CA2486149A1 (en) 2003-12-18
MXPA04011490A (es) 2005-08-15
WO2003104586A1 (es) 2003-12-18

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