EP1651826B1 - Fixation de coffrage et procede correspondant - Google Patents

Fixation de coffrage et procede correspondant Download PDF

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Publication number
EP1651826B1
EP1651826B1 EP04743315A EP04743315A EP1651826B1 EP 1651826 B1 EP1651826 B1 EP 1651826B1 EP 04743315 A EP04743315 A EP 04743315A EP 04743315 A EP04743315 A EP 04743315A EP 1651826 B1 EP1651826 B1 EP 1651826B1
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EP
European Patent Office
Prior art keywords
post
fixing
formwork
support portion
fixings
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EP04743315A
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German (de)
English (en)
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EP1651826A1 (fr
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Daniel O'sullivan
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Individual
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Individual
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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
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • 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
    • E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
    • E04G17/064—Spacers placed on the bottom of the mould
    • 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
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms

Definitions

  • the present invention relates to a formwork fixing and to a method of fixing a formwork.
  • a starter wall also known as an upstand wall or kicker, is a short wall which is upstanding from a concrete slab that forms the base or floor of a building.
  • the starter wall provides a base for a main wall.
  • a formwork may be secured to the starter wall in order to allow the main wall to be cast.
  • a starter wall has within it reinforcement or "starter" bars which are tied to the main slab reinforcement, and to which further reinforcement is subsequently tied for the main wall.
  • a starter wall is typically poured monolithically with the concrete slab.
  • the fixing of a formwork for allowing the starter wall to be formed has always been a difficult and time-consuming task in the construction industry, for a number of reasons.
  • the formwork for the starter wall has to be suspended above the slab which is being poured, which is difficult in practice and means that the formwork for the starter wall is susceptible to movement and may not be arranged as vertically as required.
  • the slab typically contains reinforcement, often in the form of a steel mesh or grid, which impedes the use of formwork supports.
  • the starter wall formwork fixing has to be firmly supported because in practice operatives will inevitably walk on or hit the formwork fixing with shovels, and the like. It will be understood that proper vertical and horizontal alignment of the formwork for the starter wall is practically essential.
  • EP-A-1106748 , FR-A-2642460 and US1672760 disclose various devices for supporting formworks that are used when forming or casting a kerb of a pavement. To achieve some stability, each has a spiked peg which is driven into the ground adjacent the region where the kerb is to be formed.
  • plural such fixings will be used in order to provide support for a formwork.
  • the fixings have application in supporting a formwork for a starter wall.
  • the fixing allows for, in practice, horizontal and vertical adjustment of the position of the support portion, which allows the support portions of plural such fixings to be set for line and level.
  • the fixing can be made of an inert material, such as plastics, which means that the fixing can be left in situ after the starter or other wall has been formed.
  • the fixing comprises a second post on which the first post is movably mounted, the first and second posts being arranged so that the first post can be moved relative to the second post in a direction generally along or parallel to the longitudinal axis of the first post so that the height of the support portions relative to a said floor can be adjusted.
  • the bottom of the second post will be in contact with the decking or other surface on which the concrete slab floor is to be poured.
  • the first post is screw-threadedly mounted to the second post whereby rotation of the second post relative to the first post causes the first post to move relative to the second post in a direction generally along or parallel to the longitudinal axis of the first post (i.e. in practice vertically). This provides for easy adjustment of the position of the first post relative to the second post, whilst friction in the thread holds the first post in position relative to the second post.
  • the support portions are slidably mounted at one end of the second post. This provides for easy adjustment of the support portion relative to the first post.
  • the fixing comprises a block slidably mounted in the first support portion and to which the post is movably fitted to mount the first support portion on the post. This sliding movement of the block allows the (usually) horizontal position of the support portion to be adjusted relative to the post.
  • the post is fitted to the block by a screw threaded connection whereby rotation of the post relative to the block enables the height of the support portions relative to a said floor to be adjusted.
  • the first support portion may have a lug around which a tie can be fixed to fix a said beam of a formwork to the fixing. This helps to retain the beam in the desired position whilst concrete is being poured for example.
  • the second support portion may have a lug around which a tie can be fixed to fix a said beam of a formwork to the fixing. This further helps to retain the beam in the desired position whilst concrete is being poured for example.
  • the second support portion has an opening therethrough through which a tie rod can be passed.
  • the clamp can be used to support the fixings in position during pouring of concrete, and helps to keep the second support portions parallel to each other and vertical.
  • a fixing as described above, an anchor plate and a connecting arrangement
  • the channel of the second support portion of the fixing receiving in use one end of the connecting arrangement and the other end of the connecting arrangement being fixable in use to the anchor plate so as to connect the anchor plate to the fixing.
  • the second support portion of the fixing preferably has an opening therethrough through which a tie rod can be passed in use to engage with at least one of the connector and the anchor plate.
  • a method of monolithically forming a concrete slab floor with a starter wall comprising: fixing a formwork using a plurality of fixings, each fixing comprising a support portion on which the base of a beam of a formwork can be supported above a deck floor; and, a post on which the support portion is movably mounted, the post having a longitudinal axis; the post and support portion being arranged so that the support portion can be moved relative to the post in at least one direction generally perpendicular to the longitudinal axis of the post and so that the height of the support portion relative to a said floor can be adjusted; the fixing method comprising: placing posts of plural ones of the fixings at intervals on the deck floor so that the posts are substantially vertical; horizontally and vertically moving the support portions as necessary so that the support portions are arranged in a line; and, fitting the beam of the formwork to the support portions; and, monolithically forming the concrete slab floor with the starter wall by pouring concrete over
  • the method may comprise repeating the placing, moving and fitting steps for a second series of fixings and a second beam of the formwork such that the second beam of the formwork is fitted substantially parallel to the first beam.
  • a so-called slab end-shutter may act in lieu of the second series of fixings and second beam.
  • the method may comprise prior to the pouring of the concrete, clamping respective ones of the fixings of the first and second series of fixings together.
  • a method of monolithically forming a concrete slab floor with a starter wall comprising: fixing a formwork using a plurality of fixings, each fixing comprising a support portion on which the base of a beam of a formwork can be supported above a floor; and, a post on which the support portion is movably mounted, the post having a longitudinal axis; the post and support portion being arranged so that the support portion can be moved relative to the post in at least one direction generally perpendicular to the longitudinal axis of the post and so that the height of the support portion relative to a said floor can be adjusted; the fixing method comprising: fitting plural said fixings to the beam of the formwork; and, placing the assembly of said fixings and said beam on the floor and horizontally and vertically moving the support portions as necessary; and, monolithically forming the concrete slab floor with the starter wall by pouring concrete over the deck and around the formwork.
  • the method may comprise repeating the fitting and placing steps for a second series of fixings and a second beam of the formwork such that the second beam of the formwork is fitted substantially parallel to the first beam.
  • the method preferably comprises clamping the first and second beams together prior to placing either of said beams on the floor, and then placing the assembly of the clamped beams and respective fixings on a said floor.
  • the method may comprise connecting an anchor plate to at least one of the fixings to provide an anchor point for a tie rod.
  • At least one of the fixings is preferably a fixing as described above.
  • a first example of a formwork fixing 1 has a first generally planar support portion 2 and a second generally planar support portion 3 arranged perpendicularly to the first planar support portion 2.
  • the first planar support portion 2 will be horizontal and the second planar support portion 3 will be vertical.
  • the planar support portions 2,3 are provided by perpendicular faces of a support 4 which has a generally L-shape cross-section.
  • the underneath surface of the support 4 has recessed channels or a slot 5 (shown in dashed lines in Figures 1 and 2 ) which receives the head 6 of a first post 7.
  • the slot 5 is open at the rear of the support 4 in order to allow the head 6 of the first post 7 to be inserted, the slot 5 stopping short of the front of the support 4 in order to prevent the first post 7 passing straight through.
  • this arrangement allows the support 4 to be moved relative to the first post in a direction generally parallel to the plane of the first support portion 2 which, in practice, is in a horizontal plane and in a direction from the front to the back of the support 4.
  • the first post 7 is hollow and has an internal screw thread 8.
  • a second post 9 is provided as a discrete item and has a corresponding external screw thread 10 at at least one end.
  • the second post 9 can be screwed into the first post 7 as far as is necessary, as will be discussed further below.
  • the second post 9 has a hexagonal or other polygonal male head 11 at one end and a correspondingly shaped female recess 12 at the other end, which facilitates adjustment, as will again be described further below .
  • plural such fixings 1 are first taken and fixed in a horizontal line. These fixings 1 can be fixed in place, at least loosely, by tying the first posts 7 to the steel grid or other reinforcement 13. A typical spacing between the fixings 1 might be of the order of 1 metre or so.
  • the horizontal position of the supports 4 is adjusted as necessary, by sliding the supports 4 on the respective first posts 7, so that the second or vertical planar support portions 3 are all aligned.
  • the vertical position of the first or horizontal planar support portions 2 of the fixings 1 is adjusted so that the horizontal planar support portions 2 are all in approximately the same plane.
  • This vertical adjustment is achieved by screwing the second post 9 into the first posy 7 of a fixing 1.
  • Rotation of the second post 9 within the first post 7 can be carried out by use of another second post 9 which has its male head 11 inserted into the female end 12 of the second post 9 of the fixing 1, entry being obtainable through an opening in the surface of the horizontal planar support portion 2 of the fixing 1.
  • each second post 9 seats against the floor or "decking” or “blinding”. This means that the fixings 1 are effectively supported on the decking independent of the steel grid 13, and are not suspended above the decking as in the prior art, which makes the formwork more stable.
  • a second row of fixings 1 is then set into place parallel to the first row of fixings 1 and their horizontal and vertical positions adjusted as necessary.
  • Respective timber joists or, more preferably, plastics beams 14 are then placed on the rows of fixings 1 parallel to each other and separated by a distance equal to the width of the wall to be cast.
  • the beams 14 can be fixed in this position by nailing timber straps between the beams 14 at intervals along the beams 14.
  • the beams 14 can alternatively or additionally be temporarily secured to the fixings 1 by tying wire. Lugs 15,16 projecting from the planar support portions 2,3 can be used as attachment points for the tying wire.
  • each beam 14 with its plural fixings 1 it is also possible to pre-assemble each beam 14 with its plural fixings 1.
  • plural fixings 1 can be attached at intervals along each beam 14. If necessary or desirable, tying wire can be used to secure the beams 14 to the fixings 1, though this may not always be necessary.
  • the pair of beams 14 with their fixings 1 can then be fixed parallel to each other by for example nailing timber straps between the beams 14 at intervals along the beams.
  • the beams 14 are again spaced by a distance equal to the width of the wall to be cast. This assembly of the two beams 14 and their respective fixings 1 can then be lowered manually into position on the decking, the fine position of the fixings 1 being adjusted vertically and horizontally as necessary.
  • Concrete is then poured to form the concrete slab 17 and also into the space between the two rows of fixings 1 and beams 14 in order to form the starter wall 18.
  • the starter wall 18 is thereby formed monolithically with the concrete slab 17.
  • the fixings 1 are preferably made of an inert material, such as plastics, which will not rust or otherwise affect the concrete, so that the fixings 1 do not have to be removed. It will be understood that the fixings 1 will typically be bound to the concrete and so their removal would be difficult.
  • shutters are then positioned either side of the starter wall 18 to allow the main wall (not shown) to be formed on the starter wall 18.
  • Conventional L-shape starter bars 19 and lacers 19' are shown in Figure 5 .
  • the fixings 1 accordingly provide in a very simple manner a fixing for a formwork for a starter wall in which the fixings 1 can be adjusted in vertical and horizontal directions in order to achieve alignment.
  • the alignment of the support portions 4 is not affected or constrained by the presence of the reinforcing mesh 13.
  • feet may be fitted under the second posts 9 during the fitting of the fixings 1.
  • a range of second posts 9 having different lengths may be provided and the fitter simply selects the second post of the appropriate length.
  • FIG. 6 to 9 a second example of a formwork fixing 1 is shown.
  • the same reference numerals as used for the first example are used for the same or corresponding features in the second example.
  • a screw block 60 having an internally screw-threaded through hole 61 is slidably mounted in the channel 5 so as to be able to slide in use in a horizontal plane (i.e. to the left and right in Figure 6 ).
  • the support 4 is supported on the concrete floor or decking by a plastics screw-threaded rod 62 which passes through the open lower surface of the support 4, is threaded into the screw block 60, and passes through the open upper surface of the first support portion 2.
  • the height of the support 4 relative to the decking can be adjusted by screwing the screw rod 62 in the screw block 60, and the horizontal position of the support 4 can be adjusted simply by sliding the screw block 60 in the channel 5.
  • the second (vertical) support portion 3 has an opening 64 therethrough, the purpose of which will be described below.
  • a ledge or stop 63 is mounted on the upper surface of the first support portion 2 on each side of the channel 5.
  • Each stop 63 may be integrally formed with the support 4.
  • the distance from the stop 63 to the second support portion 3 may be a standard width, such as 75mm, so as to be able to accommodate and fix the beam 14 in position. This avoids having to tie the beams 14 to the support 1, which simplifies assembly.
  • the lugs 15, 16 do not have to be provided on the supports 1.
  • a clamp 70 in the form of an inverted rectangular U-shape is used to hold the supports 4 in position.
  • the clamp 70 has downwardly projecting parallel legs 71 which are received in a respective channel 72 in the supports 4.
  • the clamp 70 is preferably made of a rigid material, such as metal.
  • the supports 4 can first be placed individually in position on the decking, and then the beams 14 put in position on the supports 4 and, in this example, the clamps 70 positioned between respective pairs of supports 4.
  • pre-assembly of the beams 14 and supports 4 can be carried out, clamps 70 again being used to hold the pre-assembled beams 14 and supports 4 together, and the whole assembly then being lifted into position.
  • this clamp 70 can be used with a suitably adapted version of the first example of a support 4 shown in Figures 1 to 4 .
  • the clamp 70 has a further pair of parallel depending legs 73 (shown in dashed lines in Figure 9 ) which are positioned outwardly of and parallel to the first pair of depending legs 71.
  • the spacing between the respective pairs of first and second depending legs 71,72 is preferably a standard width, of for example 75mm.
  • an external shutter 20 has a water bar 21 which has projections 22 that are intended to prevent ingress of water through the joint between the top of the starter wall 23 and the main wall that is subsequently cast above the starter wall 23.
  • projections 22 that are intended to prevent ingress of water through the joint between the top of the starter wall 23 and the main wall that is subsequently cast above the starter wall 23.
  • tie bars for the formwork for forming the main wall have had to be placed above the water bar 21 in waterlogged conditions, but even then the formed main wall is still susceptible to seepage of water through the bolt hole above the water bar 21.
  • the anchor plate 24 is generally square and has plural holes 25 which allow for additional steel bars to be tied to it if required by specific designs.
  • the anchor plate 24 in the example of Figures 10 and 10A has a centrally positioned.and externally screw-threaded tie rod 26 projecting outwardly therefrom.
  • the tie rod 26 may be integrally formed with the body of the anchor plate 24 or welded or otherwise fixed thereto.
  • An internally threaded connecting tube 27 is screwed at one end onto the tie rod 26 of the anchor plate 24, and is received at the other end in a channel 28 provided in the first support portion 3 of the support 4.
  • the connecting tube 27 can slide up and down in the channel 28, allowing the vertical position of the connecting tube 27 to be adjusted, at least down to a predetermined height above the first support portion 2 by a stop (not shown) in the channel 28.
  • a clamp 80 of generally lazy Z-shape cross-section is used to hold the respective supports 4 in position.
  • This clamp 80 has a downwardly depending leg 81 which is received in the channel 28 of the support 4.
  • a facing leg or plate 82 at the other end of the clamp 80 can be nailed or otherwise fixed to the shutter 20.
  • a further downwardly depending leg 83 may be provided outwardly of the first depending leg 81 so as to accommodate the beam 14 therebetween.
  • a connecting tube 29 is fixed to or integrally formed with the anchor plate 24 and a short piece of threaded tie rod 30 is used to connect between the connecting tube 29 of the anchor plate 24, and the connecting tube 27 that is slidably received in the support 4. Walls of different widths can easily be accommodated by using tie rods 30 of different lengths.
  • Props 35 are conventionally bolted into the concrete slab 17.
  • this bolting of the props 35 into the concrete slab 17 means that it is necessary to drill into the slab 17, which is a labour-intensive exercise, especially as steel reinforcement may be encountered, and an error in drilling can allow ingress of water.
  • a long tie bar 36 is screwed into the first end of the connector tube 27 through the opening 64 in the second support portion 3, the internal shutter 32 and its soldier 34.
  • An adjustable anchor 38 is mounted over the free end of the long tie bar 36 and can be slid along the length of the long tie bar 36.
  • a nut 39 is screw threaded on the free end of the long tie bar 36 in order to limit the movement of the adjustable anchor 38.
  • the prop 35 is pivotally mounted at one end to the adjustable anchor 38. The other end of the prop 35 is pivotally mounted via a tilt plate 40 which is fixed to the soldier 34.
  • This arrangement which uses the connector tube 27, means that the internal shutter 32 is fully propped and yet it is not necessary to drill into the concrete slab 17 in order to provide an anchor point for the propping arrangement.
  • the anchor points for the subsequent wall formwork are provided by the anchor plates 24 and connector tubes 27 and are therefore optimally positioned low down in the wall.
  • the use of the connector tube 27 and adjustable anchor 38 also makes fixing and alignment of the prop 35 much easier and quicker.
  • a nut 41 on the short tie bar 37 secures the lower end of the internal soldier 34.
  • Additional tie bars 42 and nuts 43 tie the internal and external soldiers 34,33, with walers 44 being positioned between the soldiers 33, 34 and the shutters 20',32 as is conventional.
  • a formwork support 4 is provided either side of the region where the main wall is to be formed.
  • the formwork supports 4 are then positioned at the correct horizontal position and correct vertical position as described above, in this example by sliding the screw blocks 60 in the respective supports 4 and by screwing the rods 62 relatively up and down in the screw blocks 60 as required.
  • the respective pairs of supports 4 can then be clamped relative to each other using the clamp 70 as described above, with the additional depending legs 73 to hold the beams 14 in position.
  • a respective short internally threaded connecting tube 50 is fitted to each support 4, with one end of each connecting tube 50 being vertically slidably received in the respective channel 72 in the supports 4 and pushed down to the stop (not shown) in the channel 72 to be at the optimum vertical position.
  • a short threaded tie bar 51 is screwed between pairs of connecting tubes 50 to hold the pairs of supports 4 in position.
  • the connecting tubes 50 can then receive screw threaded tie bars 36/37.
  • these tie bars 36/37 can be used to adjustably mount a prop 35 and other necessary equipment for the formwork fixings to allow the main wall to be poured.
  • the short threaded rod 51 have a downwardly depending leg 52 which is set in the concrete of the main concrete floor 17.
  • the present invention provides fixings for formwork which do not have to be suspended above a decking on which a concrete floor is to be poured.
  • the formwork fixings of the preferred embodiments can be supported on and by the decking whilst the concrete floor and, optionally, a kicker wall is poured.
  • the height of the support portion of the formwork fixings can be easily adjusted, and the position of the support posts for the fixings can easily be adjusted in a horizontal plane.
  • the formwork fixings of the present invention are able to provide a much more stable support during the phase of concrete pouring and setting. Certain embodiments help to ensure that the kicker is formed vertically with parallel sides.
  • Certain embodiments provide for anchor points to facilitate the fixing of the subsequent wall formwork. Such anchor points can be accurately placed to suit the formwork design.
  • the fixings can be used in the formation of columns, etc.

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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)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Claims (20)

  1. Fixation de coffrage (1) pour fournir un appui à un coffrage pour un mur de départ devant être coulé monolithiquement avec une dalle en béton, la fixation comprenant :
    une première partie d'appui (2), sur laquelle la base d'une poutre (14) du coffrage peut être en appui au-dessus d'un plancher ,
    une seconde partie d'appui (3) pour l'appui d'un mur arrière d'une dite poutre (14) d'un coffrage ; et caractérisée en ce qu'elle comprend en outre
    un montant (9, 62) sur lequel les parties d'appui (2, 3) sont montées mobiles, le montant (9, 62) ayant un axe longitudinal et une extrémité inférieure adaptée au logement contre le plancher ,
    le montant (9, 62) et les parties d'appui (2, 3) étant disposés de sorte que les parties d'appui (2, 3) puissent être déplacées par rapport au montant (9, 62) dans au moins une direction généralement perpendiculaire à l'axe longitudinal du montant (9, 62) et de sorte que la hauteur des parties d'appui (2, 3) par rapport audit plancher puisse être ajustée ,
    la seconde partie d'appui (3) présentant un canal (28, 64, 72) pour recevoir un connecteur ou une jambe de serrage.
  2. Fixation (1) selon la revendication 1, comprenant un second montant (7), sur lequel le premier montant (9) est monté mobile, les premiers et seconds montants (9, 7) étant disposés de sorte que le premier montant (9) puisse être déplacé par rapport au second montant (7) dans une direction généralement le long ou parallèlement à l'axe longitudinal du premier montant (9) de sorte que la hauteur des parties d'appui (2, 3) par rapport à un dit plancher puisse être ajustée.
  3. Fixation (1) selon la revendication 2, dans laquelle le premier montant (9) est monté par filetage au second montant (7), moyennant quoi la rotation du second montant (7) par rapport au premier montant (9) entraîne le déplacement du premier montant (9) par rapport au second montant (7) dans une direction généralement le long ou parallèle à l'axe longitudinal du premier montant (9).
  4. Fixation (1) selon la revendication 2 ou 3, dans laquelle les parties d'appui (2, 3) sont montées à coulissement au niveau d'une extrémité du second montant (7).
  5. Fixation (1) selon la revendication 1, comprenant un bloc (60) monté à coulissement dans la première partie d'appui (2) et dans lequel le montant (62) est inséré mobile pour le montage de la première partie d'appui (2) sur le montant (62).
  6. Fixation (1) selon la revendication 5, dans laquelle le montant (62) est inséré dans le bloc (60) par une connexion filetée, moyennant quoi la rotation du montant (62) par rapport au bloc (60) permet d'ajuster la hauteur des parties d'appui (2, 3) par rapport à un dit plancher.
  7. Fixation (1) selon l'une des revendications 1 à 6, dans laquelle la première partie d'appui (2) présente une saillie (15) autour de laquelle une boucle peut être fixée pour fixer une dite poutre (14) d'un coffrage à la fixation (1).
  8. Fixation selon l'une des revendications 1 à 7, dans laquelle la seconde partie d'appui (3) présente une saillie (16) autour de laquelle une boucle peut être fixée pour fixer une dite poutre (14) d'un coffrage à la fixation (1).
  9. Fixation selon l'une des revendications 1 à 8, dans laquelle la seconde partie d'appui (3) présente une ouverture au travers de laquelle une tige de traction peut être passée.
  10. Combinaison comprenant deux fixations (1) selon l'une des revendications 1 à 9 et un collier de serrage (70) ayant au moins deux jambes dépendantes (71) qui peuvent être reçues respectivement dans les canaux (72) prévus dans les secondes parties d'appui (3) desdites fixations (1) de sorte que les fixations (1) puissent être serrées ensemble.
  11. Combinaison comprenant une fixation selon l'une des revendications 1 à 7, une plaque d'ancrage (24) et un ensemble de connexion (27), le canal (28) de la seconde partie d'appui (3) de la fixation (1) recevant en usage une extrémité de l'ensemble de connexion (27) et l'autre extrémité de l'ensemble de connexion (27) pouvant être fixée en usage à la plaque d'ancrage (24) de sorte à connecter la plaque d'ancrage (24) à la fixation (1).
  12. Combinaison selon la revendication 11, dans laquelle la seconde partie d'appui (3) de la fixation (1) présente une ouverture au travers de laquelle une tige de traction peut être passée en usage pour s'engager avec au moins le connecteur ou la plaque d'ancrage.
  13. Procédé de formation monolithique d'un plancher de dalle en béton avec un mur de départ, le procédé comprenant :
    la fixation d'un coffrage en utilisant une pluralité de fixations (1), chaque fixation (1) comprenant une partie d'appui (2) sur laquelle la base d'une poutre (14) d'un coffrage peut être en appui au-dessus d'un plancher de terrasse ; et un montant (9, 62) sur lequel la partie d'appui (2) est montée mobile, le montant (9, 62) ayant un axe longitudinal ; le montant (9, 62) et la partie d'appui (2) étant disposés de sorte que la partie d'appui (2) puisse être déplacée par rapport au montant (9, 62) dans au moins une direction généralement perpendiculaire à l'axe longitudinal du montant (9, 62) et de sorte que la hauteur de la partie d'appui (2) par rapport à un dit plancher puisse être ajustée ; le procédé de fixation comprenant :
    le placement des montants (9, 62) d'une pluralité de fixations (1) à intervalles sur le plancher de terrasse de sorte que les montants (9, 62) soient essentiellement verticaux ;
    le déplacement horizontal et vertical des parties d'appui (9, 62) autant que nécessaire de sorte que les parties d'appui (2) soient disposées en ligne ; et
    l'insertion de la poutre (14) du coffrage dans les parties d'appui (2) ; et
    la formation monolithique du plancher de dalle en béton avec le mur de départ en coulant le béton sur la terrasse et dans le coffrage.
  14. Procédé selon la revendication 13, comprenant la répétition des étapes de placement, de déplacement et d'insertion pour une seconde série de fixations (1) et une seconde poutre (14) du coffrage de telle sorte que la seconde poutre (14) du coffrage soit insérée essentiellement parallèlement à la première poutre (14).
  15. Procédé selon la revendication 14, comprenant, avant le coulage du béton, le serrage des fixations (1) respectives de la première et seconde séries de fixations (1) ensemble.
  16. Procédé de formation monolithique d'un plancher de dalle en béton avec un mur de départ, le procédé comprenant :
    - la fixation d'un coffrage en utilisant une pluralité de fixations (1), chaque fixation (1) comprenant une partie d'appui (2), sur laquelle la base d'une poutre (14) d'un coffrage peut être en appui au-dessus d'un plancher , et un montant (9, 62) sur lequel la partie d'appui (2) est montée mobile, le montant (9, 62) ayant un axe longitudinal ; le montant (9, 62) et la partie d'appui (2) étant disposés de sorte que la partie d'appui (2) puisse être déplacée par rapport au montant (9, 62) dans au moins une direction généralement perpendiculaire à l'axe longitudinal du montant (9, 62) et de sorte que la hauteur de la partie d'appui (2) par rapport à un dit plancher puisse être ajustée ; le procédé de fixation comprenant :
    - l'insertion d'une pluralité de dites fixations (1) dans la poutre (14) du coffrage ,
    - le placement de l'ensemble desdites fixations (1) et de ladite poutre (14) sur le plancher et le déplacement horizontal et vertical des parties d'appui (2) autant que nécessaire et
    - la formation monolithique du plancher de dalle en béton avec le mur de départ en coulant le béton sur la terrasse et dans le coffrage.
  17. Procédé selon la revendication 16, comprenant la répétition des étapes d'insertion et de placement pour une seconde série de fixations (1) et une seconde poutre (14) du coffrage de telle sorte que la seconde poutre (14) du coffrage soit insérée essentiellement parallèlement à la première poutre (14).
  18. Procédé selon la revendication 17, comprenant le serrage de la première et seconde poutres (14) ensemble avant le placement de chacune desdites poutres (14) sur le plancher, et le placement ensuite de l'ensemble des poutres serrées (14) et fixations (1) respectives sur un dit plancher.
  19. Procédé selon la revendication 13 ou 16, comprenant la connexion d'une plaque d'ancrage (24) à au moins l'une des fixations (1) afin de fournir un point d'ancrage pour une tige de traction.
  20. Procédé selon l'une des revendications 13 à 19, dans lequel au moins l'une des fixations (1) est une fixation selon l'une des revendications 2 à 9.
EP04743315A 2003-07-11 2004-07-09 Fixation de coffrage et procede correspondant Expired - Lifetime EP1651826B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0316304.5A GB0316304D0 (en) 2003-07-11 2003-07-11 Formwork fixing and method
PCT/GB2004/002974 WO2005007995A1 (fr) 2003-07-11 2004-07-09 Fixation de coffrage et procede correspondant

Publications (2)

Publication Number Publication Date
EP1651826A1 EP1651826A1 (fr) 2006-05-03
EP1651826B1 true EP1651826B1 (fr) 2009-03-04

Family

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EP04743315A Expired - Lifetime EP1651826B1 (fr) 2003-07-11 2004-07-09 Fixation de coffrage et procede correspondant

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EP (1) EP1651826B1 (fr)
AT (1) ATE424492T1 (fr)
DE (1) DE602004019785D1 (fr)
GB (1) GB0316304D0 (fr)
WO (1) WO2005007995A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2454882B (en) * 2007-11-20 2012-06-13 James Gerald Mccoy A support
CN117868483B (zh) * 2024-03-13 2024-05-14 山西冶金岩土工程勘察有限公司 一种房屋建筑模板及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1672760A (en) * 1923-07-16 1928-06-05 John N Heltzel Concrete form
GB620311A (en) * 1945-08-09 1949-03-23 Ubaldo Fiorenzi Improvements in or relating to shuttering for casting concrete walls in situ
US2764798A (en) * 1953-08-24 1956-10-02 John P Huff Concrete form
US3797800A (en) * 1971-06-02 1974-03-19 E Loy Portable reusable form for concrete foundations
FR2642460A1 (fr) * 1989-01-27 1990-08-03 Aspord Roland Dispositif de coffrage d'une chape sur une surface horizontale
AU8097198A (en) * 1997-06-27 1999-01-19 Richard Neil Fearn Reusable building foundation form apparatus and method
IT1308962B1 (it) * 1999-12-03 2002-01-15 Gino Cerato Dispositivo di sostegno e tenuta per posizionare casserature

Also Published As

Publication number Publication date
DE602004019785D1 (de) 2009-04-16
ATE424492T1 (de) 2009-03-15
GB0316304D0 (en) 2003-08-13
WO2005007995A1 (fr) 2005-01-27
EP1651826A1 (fr) 2006-05-03

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