EP1550780A2 - Element de coffrage pour coulés en béton - Google Patents

Element de coffrage pour coulés en béton Download PDF

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Publication number
EP1550780A2
EP1550780A2 EP04030935A EP04030935A EP1550780A2 EP 1550780 A2 EP1550780 A2 EP 1550780A2 EP 04030935 A EP04030935 A EP 04030935A EP 04030935 A EP04030935 A EP 04030935A EP 1550780 A2 EP1550780 A2 EP 1550780A2
Authority
EP
European Patent Office
Prior art keywords
forming device
lateral elements
cables
artifact
lateral
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Withdrawn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
EP04030935A
Other languages
German (de)
English (en)
Other versions
EP1550780A3 (fr
Inventor
Marika Serafin
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.)
Omnia SRL
Original Assignee
Omnia SRL
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 Omnia SRL filed Critical Omnia SRL
Publication of EP1550780A2 publication Critical patent/EP1550780A2/fr
Publication of EP1550780A3 publication Critical patent/EP1550780A3/fr
Withdrawn legal-status Critical Current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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/001—Corner fastening or connecting means for forming or stiffening elements
    • 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

Definitions

  • the present invention concerns a forming device, such as for example a formwork, a mold or suchlike, used to form and contain concrete casts, for example during the steps to form or regenerate building artifacts.
  • a forming device such as for example a formwork, a mold or suchlike, used to form and contain concrete casts, for example during the steps to form or regenerate building artifacts.
  • a device for forming concrete casts such as a formwork, a mold or suchlike, in order to make or regenerate building artifacts, comprising a plurality of lateral panels of a substantially standardized height, each one formed by one or more modules, so as to define the perimeter of the artifact to be made or regenerated on the outside.
  • the lateral panels are normally clamped together by means of tie rods, grippers, vices or other, so as to define a compact and substantially rigid structure.
  • Another disadvantage is that it is necessary to attach the lateral panels directly to the artifact by means of threaded bars, since, once the concrete has been cast and the device removed, the holes in which the threaded bars were housed remain on the outer surface of the artifact, thus requiring possible finishing steps, or at least the aesthetic quality of the artifact made is lowered.
  • One purpose of the present invention is to achieve a device for forming concrete casts which can be clamped autonomously to the building artifact to be made, or to be regenerated, without needing to make holes in the masonry.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a forming device for concrete casts for making a building artifact comprises a plurality of lateral elements, able to be associated with each other in order to define the outer profile of the building artifact, and clamping means able to clamp together the lateral elements so as to form a compact and substantially rigid structure.
  • the clamping means comprise at least a flexible element, of the non-extendable type, such as for example a cable, a line or suchlike, arranged externally around the lateral elements, and a plurality of tensioning members associated with the lateral elements, and able to act against the flexible element, so as to determine the tensioning thereof.
  • a flexible element of the non-extendable type, such as for example a cable, a line or suchlike, arranged externally around the lateral elements, and a plurality of tensioning members associated with the lateral elements, and able to act against the flexible element, so as to determine the tensioning thereof.
  • the device according to the present invention is therefore autonomous in its clamping action, even at a height, to the building artifact.
  • clamping by means of the flexible element and the tensioning members does not make it necessary to make holes in the artifact in order to house tie rods, threaded bars or suchlike, and thus does not require any final finishing step.
  • an edge-covering element in correspondence with the connecting edge between two adjacent lateral elements, is provided, which has at least a guide surface for the flexible element, so as to limit any possible rubbing, and hence wear, by the flexible element against the edges of the lateral elements.
  • a gripping element is provided, able to grip the second end of the cable, or a segment thereof, according to the size of the perimeter of the building artifact.
  • a forming device 10, hereafter simply formwork, according to the present invention is in this case able to be applied to regenerate the surface, by means of concrete casts, of the sides 11a of a pillar 11, only partly shown, of a road bridge.
  • the formwork 10 comprises four lateral panels, respectively two long ones 12 and 15, and two short ones 13 and 16, arranged angled with respect to each other and facing respective sides 11a of the pillar 11, so as to follow the profile thereof, and a clamping member 17 able to keep the lateral panels 12, 13, 15 and 16 solidly and stably associated with each other and with the pillar 11.
  • each lateral panel 12, 13, 15 and 16 is formed by a determinate number of rectangular shaped modules 22 with standardized sizes and connected laterally to each other, by means of screws, bolts or other conventional connection systems of the removable type, according to the sizes of the side 11a of the pillar 11 for which the formed lateral panel 12, 13, 15, 16 is intended.
  • the surface of every module 22 which in use will be arranged facing the side 11a of the pillar 11 is substantially smooth, so as to obtain an optimum surface finish of the regeneration performed.
  • the two long lateral panels 12 and 15 are each formed by twenty-five modules 22, whereas the two short lateral panels 13 and 16 are each formed by five modules 22. It is clear that the number of modules 22 forming each lateral panel 12, 13, 15 and 16 can be different from that shown in the attached drawings, and is irrelevant for the purposes of the present invention.
  • Each module 22 also comprises a spacer 23 (fig. 3) facing towards the pillar 11 and able to be rested thereon, in order to distance the module 22 from the relative side 11a, and to define an interspace 25 between the relative lateral panel 12, 13, 15 and 16 formed, and the side 11a, inside which the concrete is able to be cast.
  • a spacer 23 (fig. 3) facing towards the pillar 11 and able to be rested thereon, in order to distance the module 22 from the relative side 11a, and to define an interspace 25 between the relative lateral panel 12, 13, 15 and 16 formed, and the side 11a, inside which the concrete is able to be cast.
  • Each spacer 23 comprises an element of adjustable length, for example a screw, not shown in the drawings, which allows the operator to select individually the amplitude of the interspace 25, also depending on possible depressions or ridges present on the side 11a of the pillar 11.
  • the clamping member 17 in this case comprises four annular cables 19 of the non-extendable type, arranged around the lateral panels 12, 13, 15 and 16, and a plurality of first and second fluid-dynamic actuators 20 and 21 associated externally with each of the modules 22 forming the lateral panels 12, 13, 15 and 16.
  • three of the four cables 19 are arranged in correspondence with a lower part of the lateral panels 12, 13, 15 and 16, whereas the fourth of the cables 19 is arranged in correspondence with an upper part of the lateral panels 12, 13, 15 and 16, so as to guarantee a greater clamping tension in the segments where the pressure exerted by the concrete cast is greater.
  • Each cable 19 comprises, in correspondence with a first of its two ends, a gripping element, of a conventional type and not shown here, such as for example a gripper, a hook or suchlike, able to grip a segment of the cable 19 in proximity with the second of its two ends so that, depending on the size of the perimeter of the pillar 11, the length of each cable 19 can be selectively modified, so as to ensure an optimum clamping of the lateral panels 12, 13, 15 and 16.
  • a gripping element of a conventional type and not shown here, such as for example a gripper, a hook or suchlike, able to grip a segment of the cable 19 in proximity with the second of its two ends so that, depending on the size of the perimeter of the pillar 11, the length of each cable 19 can be selectively modified, so as to ensure an optimum clamping of the lateral panels 12, 13, 15 and 16.
  • the first fluid-dynamic actuators 20 are arranged in correspondence with the zone of action of the first three cables 19, so as to thrust the three cables 19 outwards and bring them under tension.
  • Each first actuator 20 comprises at one end a comb element 20a on which the respective three cables 19 are positioned, in order to keep them in order during the tensioning steps.
  • the second fluid-dynamic actuators 21 are arranged in correspondence with the zone of action of the fourth cable 19, they have a shorter travel than the first actuators 20 and are able to thrust the respective cable 19 outwards in order to bring it under tension.
  • Each fluid-dynamic actuator 21 comprises at one end a fork element 21a able to retain the respective cable 19 during the tensioning steps.
  • Both the first fluid-dynamic actuators 20 and the second fluid-dynamic actuators 21 are fed in parallel by a pumping unit, of a conventional type and not shown here, and are controlled by valve elements, also of a substantially conventional type, able to dose the feed of each individual fluid-dynamic actuator 20, 21 so as to guarantee a uniform tensioning of the cables 19 along the whole perimeter.
  • the formwork 10 also comprises four edge-covering elements 26 (fig. 3), able to be arranged to cover the connecting edges of the lateral panels 12, 13, 15 and 16, each of which is provided with a first guide surface 27 for the first three of the four cables 19, and a second guide surface 29 for the fourth cable 19.
  • the guide surfaces 27 and 29 allow the cables 19 to slide slightly with respect to the edge-covering elements 26 during the tensioning steps, limiting the wear thereof.
  • the formwork 10 according to the present invention as described heretofore functions as follows.
  • the four lateral panels 12, 13, 14 and 16 are formed, by connecting together a determinate number of modules 22 depending on the sizes of the sides 11a of the pillar 11.
  • the lateral panels 12, 13, 14 and 16 thus formed are positioned one by one, facing the respective sides 11a of the pillar 11, so that the spacers 23 are in contact with the sides 11a, in order to define the interspace 25.
  • edge-covering elements 26 are then positioned in correspondence with the connecting edges of the lateral panels 12, 13, 14 and 16.
  • the cables 19 are arranged around the lateral panels 12, 13, 14 and 16, and the length of the latter is defined, by means of the reciprocal gripping elements.
  • the cables 19 are then arranged in association with the comb elements 20a and the fork elements 21a, and the first and second fluid-dynamic actuators 20 and 21 are activated.
  • the thrust action of the actuators 20 and 21, controlled by the valve elements, determines the uniform tensioning of the cables 19 which, once the maximum tension has been reached, reflect the thrust of the actuators 20 and 21 to the lateral panels 12, 13, 14 and 16, thus determining the stable positioning and clamping of the latter to the pillar 11.
  • the fluid-dynamic actuators 20 and 21 apply a greater thrust in the median zone of each lateral panel 12, 13, 14 and 16 (fig. 2), since the load applied by the concrete cast in this zone is greater than in the lateral zones.
  • the cable 19 is divided into segments arranged in correspondence with the corresponding lateral panels 12, 13, 14 and 16, so as to allow the latter to be dismantled more easily once the concrete cast has been made.
  • one of the four edge-covering elements 126 comprises a fixed block 30 mounted solid with the terminal module 22 of the lateral panel 12, and a lever element 31, substantially C-shaped, pivoted with one end to the terminal module 22 of the lateral panel 16.
  • the lever element 31 is able to be rotated between an open position (fig. 4a), wherein it is unconstrained by the fixed block 30, and a closed position (fig. 4c), wherein it is constrained to the fixed block 30, by means of a constraining pin 32, and keeps the two lateral panels 12 and 16 connected to each other.
  • extension elements not shown, able to be associated with the modules 22, in the event that the sides 11a of the pillar 11 have particular sizes, such as for example in the event that the pillar 11 is shaped substantially like a truncated pyramid.
  • annular cables 19 are arranged with two in correspondence with the lower part, and two in correspondence with the upper part, or in another way, or that there may be a different number of them, other than four.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP04030935A 2003-12-30 2004-12-29 Element de coffrage pour coulés en béton Withdrawn EP1550780A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD20030260 2003-12-30
ITUD20030260 ITUD20030260A1 (it) 2003-12-30 2003-12-30 Dispositivo di formatura per getti di calcestruzzo.

Publications (2)

Publication Number Publication Date
EP1550780A2 true EP1550780A2 (fr) 2005-07-06
EP1550780A3 EP1550780A3 (fr) 2006-03-01

Family

ID=34566942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04030935A Withdrawn EP1550780A3 (fr) 2003-12-30 2004-12-29 Element de coffrage pour coulés en béton

Country Status (2)

Country Link
EP (1) EP1550780A3 (fr)
IT (1) ITUD20030260A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8388282B2 (en) 2008-09-18 2013-03-05 Cooper Power Tools Sas Processing machine and associated processing method
US8469640B2 (en) 2008-03-27 2013-06-25 Cooper Power Tools Sas Processing machine having positive feed and processing method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR41319E (fr) * 1932-02-04 1932-12-03 Appareil d'attache pour échafaudages
JPS55142871A (en) * 1979-04-23 1980-11-07 Yakichi Tsushima Device for tightening form for concrete pillar
JPH055362A (ja) * 1991-08-26 1993-01-14 Masahiro Murakami 型枠の製造方法
EP0593316A1 (fr) * 1992-05-22 1994-04-20 Jean Leriche Cornière pour coffrage et procédé de réalisation d'un coffrage au moyen de ladite cornière
DE9408232U1 (de) * 1994-04-15 1994-07-21 Asmussen, Karl-Heinz, 24980 Schafflund Schalung
FR2806432A1 (fr) * 2000-03-17 2001-09-21 Jean Leriche Cornieres pour coffrage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR41319E (fr) * 1932-02-04 1932-12-03 Appareil d'attache pour échafaudages
JPS55142871A (en) * 1979-04-23 1980-11-07 Yakichi Tsushima Device for tightening form for concrete pillar
JPH055362A (ja) * 1991-08-26 1993-01-14 Masahiro Murakami 型枠の製造方法
EP0593316A1 (fr) * 1992-05-22 1994-04-20 Jean Leriche Cornière pour coffrage et procédé de réalisation d'un coffrage au moyen de ladite cornière
DE9408232U1 (de) * 1994-04-15 1994-07-21 Asmussen, Karl-Heinz, 24980 Schafflund Schalung
FR2806432A1 (fr) * 2000-03-17 2001-09-21 Jean Leriche Cornieres pour coffrage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 271 (M-1417), 26 May 1993 (1993-05-26) & JP 05 005362 A (MASAHIRO MURAKAMI), 14 January 1993 (1993-01-14) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8469640B2 (en) 2008-03-27 2013-06-25 Cooper Power Tools Sas Processing machine having positive feed and processing method
US8388282B2 (en) 2008-09-18 2013-03-05 Cooper Power Tools Sas Processing machine and associated processing method

Also Published As

Publication number Publication date
ITUD20030260A1 (it) 2005-06-30
EP1550780A3 (fr) 2006-03-01

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