EP3306013A1 - Schalungssystem, besonders ausgebildeter verbindungskörper für ein solches schalungssystem und verfahren zum herstellen einer bauplatte unter verwendung eines solchen schalungssystems - Google Patents

Schalungssystem, besonders ausgebildeter verbindungskörper für ein solches schalungssystem und verfahren zum herstellen einer bauplatte unter verwendung eines solchen schalungssystems Download PDF

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Publication number
EP3306013A1
EP3306013A1 EP17194910.0A EP17194910A EP3306013A1 EP 3306013 A1 EP3306013 A1 EP 3306013A1 EP 17194910 A EP17194910 A EP 17194910A EP 3306013 A1 EP3306013 A1 EP 3306013A1
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EP
European Patent Office
Prior art keywords
shuttering
reservation
formwork
walls
axis
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Withdrawn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
EP17194910.0A
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English (en)
French (fr)
Inventor
Gelase HAVYARIMANA
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.)
B@tiroc-Protect
Original Assignee
B@tiroc-Protect
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Filing date
Publication date
Application filed by B@tiroc-Protect filed Critical B@tiroc-Protect
Publication of EP3306013A1 publication Critical patent/EP3306013A1/de
Withdrawn legal-status Critical Current

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    • 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
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063—Re-usable forms
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • 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
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings

Definitions

  • the invention relates to a formwork system, to a connecting member specially adapted for such a formwork system and to a method of producing a slab of a building using such a formwork system.
  • the invention applies to the production of a hopper in a slab of a building.
  • the hopper is an opening used in particular to set up a stairwell or elevator or to pass pipes or power cables.
  • podiums are generally used.
  • the podiums include spars, adjustable in length, extending into the hopper and covered with a decking, and uprights, adjustable in height, supporting the spars and adapted to bear on a lower slab.
  • such podiums are not suitable for smaller hoppers and their implementation, generally requiring the intervention of a crane, is long and difficult.
  • platforms are generally used.
  • the platforms consist of rails mounted on the edges of the hopper and covered with a decking, or one or more planks placed on the slab to cover the hopper.
  • a decking or one or more planks placed on the slab to cover the hopper.
  • planks placed on the slab to cover the hopper.
  • the invention aims to meet this need.
  • the invention makes it possible to obtain reservation holes arranged in a simple and reproducible manner directly on the slab, during its formation, in locations previously occupied by the reservation parts. These reservation holes allow the assembly of a railing providing reliable security and adaptable to the dimensions of the hopper.
  • the reservation portion may include a cylindrical rod along the reservation axis.
  • the reservation portion may further comprise a cylindrical sleeve according to the reservation axis removably fitted on the rod.
  • Each shuttering wall may have a length between two opposite transverse edges, the wall portions of each shuttering wall being formed respectively in the vicinity of the transverse edges, and the fastening portion of each connecting member may form a bracket having two plates forming an angle about an attachment axis, in particular a right angle, each of the angle plates being attached to the wall portion of one of the formwork walls in the assembled state of the formwork system.
  • each connecting member may have a height measured along the axis of attachment and opposite inner and outer surfaces, the portion of reservation being arranged facing the outer surface of the attachment portion, the outer surface of the attachment portion being in contact with the wall portions.
  • Each shuttering wall may have a height between opposing lower and upper side edges, the fastening portion of each connecting member extending along the axis of attachment between opposing lower and upper ends, the lower end of the portion fastener being provided with a lower flange extending perpendicular to the fastening axis in a direction opposite to the reservation portion, the lower ends of the fastening portions being coplanar with the lower side edges of the shuttering walls and the wings lower fastening portions extending into the hopper opening in the assembled state of the formwork system.
  • the production method may further provide to mount a guardrail around the hopper, the railing having posts mounted in the reservation holes and sleepers mounted on the posts.
  • the figure 1 represents a formwork 15 for making a hopper 3 in a slab 2 of a building 1.
  • the formwork 15 has a closed contour around a hopper opening 16 along a form axis C.
  • the contour is rectangular and the formwork 15 is obtained from a formwork system 17 comprising four formwork walls 18 and four connecting members 25 configured to, in an assembled state of the formwork system 17, bonding the formwork walls 18 to each other.
  • each shuttering wall 18 is constituted by a rectilinear board made of a suitable material such as wood.
  • Each shuttering wall 18 has opposite inner and outer surfaces 18a and 18b connected to each other by two opposite transverse edges 19 defining a length of the shuttering wall 18, and by two lower and upper lateral edges 20 defining 21 a height of the shuttering wall 18.
  • the length of two of the shuttering walls 18 is less than that of the two other shuttering walls 18 to form the rectangular contour
  • each connecting member 25 made of metal or any other suitable material, comprises an attachment portion 26 configured to be fixed to wall portions of two formwork walls 18 in the assembled state of the formwork system 17.
  • the fixing portion 26 forms an angle having two plates 27 at right angles about a fixing axis F.
  • the fixing portion 26 has an inner surface 26a forming a concavity around the fixing axis F, and a surface external 26b opposite to the inner surface 26a.
  • the attachment portion 26 also has a height measured along the axis of attachment F between opposite lower 28 and upper ends 29.
  • the lower end 28 of the attachment portion 26 is provided with a lower flange 30 which extends perpendicularly to the fastening axis F in the concavity of the inner surface 26a.
  • the upper end 29 of the attachment portion 26 is provided with an upper flange 31 which extends perpendicularly to the fastening axis F in a direction opposite to the concavity of the inner surface 26a and the lower flange 30
  • the fixing portion 26 is made from an assembly, in particular by welding, of metal sheets.
  • two metal sheets are each folded to form one of the plates 27 adjacent firstly to a lower wing half 30 and secondly to an upper wing half 31, and then welded.
  • Each connecting member 25 also comprises a reservation portion 35 extending along a reservation axis R parallel to the fixing axis F, at a distance and facing the external surface 26b of the fixing portion 26.
  • the reservation part 35 comprises a cylindrical rod 36 along the reservation axis R which extends from the upper wing 31, opposite a corner where the plates 27 of the fastening portion 26 meet.
  • the rod 36 of the reservation portion 35 is arranged at a distance d1 from the outer surface 26b of the fixing portion 26 and has a length L1 measured according to the reservation axis R and a diameter D1 measured perpendicular to the reservation axis R.
  • the reservation portion 35 further comprises a sleeve 37 cylindrical along the reservation axis R, for example plastic, removably fitted on the rod 36.
  • the sleeve 37 has a length 1 measured along the reservation axis R between an upper open end 38 through which a free end of the rod 36, opposite to the upper flange 31, is inserted into the sleeve 37 and a lower end 39 closed.
  • the sleeve 37 also has an inner diameter corresponding to the diameter of the rod 36 and an outer diameter De.
  • the outer surface 26b of one of the plates 27 of the fixing portion 26 is brought into contact with the inner surface 18a of the wall portion arranged in the vicinity of one of the transverse edges 19 of one of the formwork walls 18 of great length, and the outer surface 26b of the other plate 27 of the fixing portion 26 is brought into contact with the inner surface 28a of the wall portion formed in the vicinity of one transverse edges 19 of one of the formwork walls 18 of short length.
  • the connecting members 25 and the formwork walls 18 are arranged in such a way that the lower ends 28 and lower flanges 30 of the fastening portions 26 are coplanar with the lower side edges 20 of the formwork walls 18.
  • the plates 27 of the fixing part 26 are then fixed by any appropriate means, and especially by screwing, respectively on the wall portions to put the formwork system 17 in the assembled state and form the formwork 15, the inner surfaces 18a of the formwork walls 18 and the inner surfaces 26a of the attachment portions 26 of the connecting members 25 defining the hopper opening 16.
  • the lower wings 30 of the attachment portions 26 of the connecting members 25 extend into the hopper opening 16 while the rods 36 and the sleeves 37 of the reservation portions 35 of the connecting members 25 are arranged outside the hopper opening 16, at a distance and facing one outer surfaces 18b of the formwork walls 18, and in particular corners where the transverse edges 19 of the formwork walls 18 meet.
  • the distance d1 between the rod 36 and the fixing portion 26, the length L1 and the diameter D1 of the rod 36 as well as the length 1 and the outside diameter of the sleeve 37 are appropriately chosen to form, in the slab 2 near the hopper 3, a reservation hole 10 adapted to receive and ensure a reliable maintenance of a post 12 of a railing 11 to secure the hopper 3 as will be apparent from the following description.
  • the distance d1 between the rod 36 and the fixing portion 26 is between 85 mm and 105 mm, for example equal to 94 mm
  • the length L1 of the rod 36 is between 180 mm and 220 mm, for example equal to 199 mm
  • the diameter D1 of the rod 36 is between 20 mm and 30 mm, for example equal to 25 mm
  • the length 1 of the sleeve 37 is between 120 mm and 140 mm, for example equal to 130 mm
  • the outer diameter of the sleeve 37 is between 20 mm and 30 mm.
  • mm and 30 mm for example equal to 26 mm.
  • the invention has been described in relation to a formwork 15 having a rectangular contour obtained by an assembly of four rectilinear formwork walls 18 by means of four connecting members 25.
  • the invention is not limited to such an embodiment. .
  • the formwork 15 could have an outline of any other shape adapted to the shape of the hopper 3 desired.
  • the formwork 15 may be obtained from a formwork system 17 comprising two or more formwork walls 18 shaped in any suitable manner and connected to one another by two or more equally shaped connecting members 25. any appropriate way.
  • the angle between the plates 27 of the attachment portion 26 of the connecting member 25 could be different from 90 °.
  • the attachment portion 26 could be attached to the lower or upper side edges 21 of the shuttering walls 18.
  • each connecting member 25 could connect more than two shuttering walls 18.
  • the formwork system 17 further comprises a reinforcing device 45 extending in the hopper opening 16 transversely to the formwork axis C to withstand thrust forces of the material whose slab 2 is formed during the formation of the slab 2.
  • the reinforcing device 45 comprises a reinforcing wall 48 formed by a rectilinear board having a length between two opposite transverse edges 49.
  • the length of the reinforcing wall 48 is substantially the same as that of the small formwork walls 18 of the shuttering system 17.
  • the reinforcing device 45 also comprises two reinforcing members 55 configured to each support one of the transverse edges 49 of the reinforcing wall 48 and to be mounted respectively on two shuttering walls 18.
  • Each reinforcing member 55 comprises a fixing portion 56 configured to be fixed on the form wall 18.
  • the fixing portion 56 comprises a plate 57 extending along an axis extension E of the lower 58 and upper ends 59 opposite, and having inner surfaces 56a and outer 56b opposite.
  • the lower end 58 of the fixing portion 56 of the reinforcing member 55 is provided with a lower flange 60 which extends perpendicular to the extension axis E on the side of the inner surface 56a.
  • the upper end 59 of the fixing portion 56 of the reinforcing member 55 is, in turn, provided with an upper flange 61 which extends perpendicular to the extension axis E on the side of the outer surface.
  • the fixing portion 56 of the reinforcing member 55 further comprises two stops 62 projecting relative to to the inner surface 56a of the plate 57 so as to delimit between them a space adapted to receive the transverse edge 49.
  • the stops 62 comprise two tongues extending along the axis d '. E extension, parallel to one another and secured to the inner surface 56a of the plate 57 and an upper surface of the lower flange 60.
  • the fixing portion 56 is made from a metal sheet folded for shape r the plate 57, the lower flange 60 and the upper flange 61, the stops 62 being welded to the inner surface 56a of the plate 57 and the upper surface of the lower flange 60.
  • Each reinforcing member 55 also comprises a reservation portion 65 extending along a reservation axis R parallel to the extension axis E, at a distance and facing the external surface 56b of the fixing portion 56.
  • the connecting member 25 the reservation portion 65 comprises a cylindrical rod 66 along the reservation axis R.
  • the rod 66 is arranged at a distance d2 from the fixing portion 56 and has a length L2 measured along the axis of reservation R and a diameter D2 measured perpendicular to the reservation axis R.
  • the reservation portion 65 may also comprise a sleeve similar to the sleeve 37 described above, removably fitted on the rod 66.
  • the distance d2 between the rod 66 and the fixing portion 56, the length L2 and the diameter D2 of the rod 66 are appropriately chosen to form, in the slab 2 near the hopper 3, a suitable reservation hole 10 to receive and ensure a reliable maintenance of a post 12 of the railing 11.
  • the distance d2 between the rod 66 and the fixing portion 56, the length L2 and the diameter D2 of the rod 66 may be identical respectively to the distance d1 between the rod 36 and the attachment portion 26 of the connecting member 25, the length L1 and the diameter D1 of the rod 36 of the connecting member 25.
  • the outer surface 56a of the plate 57 of the fixing portion 56 is brought into contact with the inner surface 18a of the wall portion formed in the middle of one of the long formwork walls 18 .
  • the reinforcing members 55 are arranged in such a way that the lower ends 58 and the lower flanges 60 of the fixing portions 56 are coplanar with the lower side edges 20 of the formwork walls 18.
  • the plate 57 of the fixing part 56 is then fixed by any appropriate means, and in particular by screwing, on the wall portion.
  • the lower wings 60 of the fixing portions 56 of the reinforcing members 55 extend into the hopper opening 16 while the rods 66 and, if appropriate, the sleeves of the reservation portions 65 of the reinforcing members 55 are arranged in outside the hopper opening, at a distance and facing a median portion of the outer surfaces 18b of the formwork walls 18.
  • one or more reinforcing devices 45 arranged in any suitable manner and having a form wall 48 and two reinforcing members 55 shaped in any suitable manner could be provided.
  • the structure 4 may comprise beams 5 resting parallel to each other on the walls 10 of the building 1 and possibly on struts 11, and rows of slabs 6 mounted between the beams 5.
  • the beams 5 and the slabs 6 cover a surface corresponding to the surface of the slab 2, with the exception of an opening where the hopper 3 must be placed.
  • a closure plate 12 is held on a lower surface of the structure 4 opposite an upper surface on which the slab 2 is to be formed to temporarily seal the opening.
  • Borders 7 having a height corresponding to a thickness of the slab 2 extend from the periphery of the structure 4.
  • the slabs 6 may be covered with a wire mesh 8.
  • the formwork system 17, in the assembled state to form the formwork 15 as described above, is placed on the opening, the lower flanges 30, 60 of the connecting members 25 and reinforcement 55 resting on the plate shutter 12 and there being fixed by any appropriate means and in particular by screwing.
  • the slab 2 is formed on the structure 4 and around the formwork 15 for example by casting the material of which the slab 2 is constituted in a fluid state.
  • the formwork 15 can be removed, the slab 2 then having a hopper 3 and reservation holes 10, delimited by the sleeves 37, at the locations previously occupied by the reservation parts 35, 65 of the connecting members 25 and reinforcement 55.
  • the railing 11 can be put in place around the hopper 3.
  • the railing 11 comprises the posts 12 mounted in the reservation holes 10 and crosspieces 13 and a baseboard 14 mounted on the posts 12.

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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)
  • Moulds, Cores, Or Mandrels (AREA)
EP17194910.0A 2016-10-07 2017-10-05 Schalungssystem, besonders ausgebildeter verbindungskörper für ein solches schalungssystem und verfahren zum herstellen einer bauplatte unter verwendung eines solchen schalungssystems Withdrawn EP3306013A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1659694A FR3057290B1 (fr) 2016-10-07 2016-10-07 Systeme de coffrage, organe de liaison specialement adapte pour un tel systeme de coffrage et procede de realisation d'une dalle d'un batiment mettant en œuvre un tel systeme de coffrage

Publications (1)

Publication Number Publication Date
EP3306013A1 true EP3306013A1 (de) 2018-04-11

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Application Number Title Priority Date Filing Date
EP17194910.0A Withdrawn EP3306013A1 (de) 2016-10-07 2017-10-05 Schalungssystem, besonders ausgebildeter verbindungskörper für ein solches schalungssystem und verfahren zum herstellen einer bauplatte unter verwendung eines solchen schalungssystems

Country Status (2)

Country Link
EP (1) EP3306013A1 (de)
FR (1) FR3057290B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108331345A (zh) * 2018-04-27 2018-07-27 广东众科建筑技术发展有限公司 一种用于布料机口浇注的预留钢筋口一体式模板
CN109826439A (zh) * 2019-03-14 2019-05-31 河北建工集团有限责任公司 一种可调式顶板预留洞口模具及其使用方法
CN113152885A (zh) * 2021-04-26 2021-07-23 南京国忠建筑工程有限公司 一种用于电梯井的可调整体内模板结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2021170A1 (de) * 1970-04-30 1971-11-11 Modell Und Patentverwertungs A Schalungssystem
FR2830029A1 (fr) * 2001-09-21 2003-03-28 Ireal Trappe de visite

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2021170A1 (de) * 1970-04-30 1971-11-11 Modell Und Patentverwertungs A Schalungssystem
FR2830029A1 (fr) * 2001-09-21 2003-03-28 Ireal Trappe de visite

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108331345A (zh) * 2018-04-27 2018-07-27 广东众科建筑技术发展有限公司 一种用于布料机口浇注的预留钢筋口一体式模板
CN109826439A (zh) * 2019-03-14 2019-05-31 河北建工集团有限责任公司 一种可调式顶板预留洞口模具及其使用方法
CN113152885A (zh) * 2021-04-26 2021-07-23 南京国忠建筑工程有限公司 一种用于电梯井的可调整体内模板结构
CN113152885B (zh) * 2021-04-26 2022-06-21 南京国忠建筑工程有限公司 一种用于电梯井的可调整体内模板结构

Also Published As

Publication number Publication date
FR3057290A1 (fr) 2018-04-13
FR3057290B1 (fr) 2018-11-16

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