EP0182212B1 - Coffrage pour la réalisation de constructions en matériaux coulés, p.ex. béton - Google Patents

Coffrage pour la réalisation de constructions en matériaux coulés, p.ex. béton Download PDF

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Publication number
EP0182212B1
EP0182212B1 EP85114188A EP85114188A EP0182212B1 EP 0182212 B1 EP0182212 B1 EP 0182212B1 EP 85114188 A EP85114188 A EP 85114188A EP 85114188 A EP85114188 A EP 85114188A EP 0182212 B1 EP0182212 B1 EP 0182212B1
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EP
European Patent Office
Prior art keywords
shuttering
webs
formwork
panels
another
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.)
Expired - Lifetime
Application number
EP85114188A
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German (de)
English (en)
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EP0182212A2 (fr
EP0182212A3 (en
Inventor
Hugo Dipl.-Ing. Mathis
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.)
Rund Stahl Bau GmbH
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Rund Stahl Bau GmbH
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Publication date
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Publication of EP0182212A3 publication Critical patent/EP0182212A3/de
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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
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/06—Forming boards or similar elements the form surface being of metal
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E04G11/065—Forms for curved walls with mechanical means to modify the curvature
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/12—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements and beams which are mounted during erection of the shuttering to brace or couple the elements

Definitions

  • the invention relates to formwork for the erection of structures made of castable materials, such as concrete, with possibly coated formwork panels made of elastically deformable material, for example steel plates, which can be bent in the elastic range for the production of curved structures and the formwork panels on the outside on opposite sides
  • formwork panels made of elastically deformable material, for example steel plates, which can be bent in the elastic range for the production of curved structures and the formwork panels on the outside on opposite sides
  • Such formwork is known.
  • rotationally symmetrical structures can be erected, but also structures with irregularly curved surfaces.
  • the forces that occur are absorbed by the concrete to be filled in by internal or external rings.
  • the external formwork this absorption of the forces can be carried out by the formwork skin itself, in particular by its own belts which are integrated in the formwork elements or by means of pulling devices which are in the form of a barrel post and are later applied.
  • the inner formwork is usually formed by pressure rings that can be polygonal or round or in the form of simple or spatial trusses.
  • carpentry-like formwork has conventionally been used conventionally with wood and double layers and with appropriate bindings.
  • the US-PS 2107427 is also to be mentioned, from which a metal formwork for the construction of concrete masonry is known, which has vertical, I-shaped uprights in cross-section, and rectangular formwork panels, which run horizontally on their back, one above the other at a distance have arranged stiffening ribs or webs. These stiffening ribs or stiffening webs protrude from the side edge of the formwork panels, they protrude from this edge, and the height of these stiffening ribs or stiffening webs is less than the inner height of the upright I-shaped cross-section.
  • the US-PS 1588229 should also be mentioned.
  • the formwork which is also made of metallic elements, has vertical uprights with a U-shaped cross-section, the side cheeks of which show narrow flanges projecting outwards.
  • the formwork panels which also have horizontal stiffening ribs or stiffening webs on the upper and lower edges, have a stiffened vertical edge which is produced by bending twice and which has a U-shape in cross section.
  • the ends of the horizontal stiffening webs are brought close to the stiffened edge of the formwork panels, which is formed by bending, but are spaced from it to form a gap, and in addition the edge of the horizontal web is pulled back somewhat obliquely towards the center of the plate, so that the rear side the formwork panel and the mentioned edge edges of the horizontal web limit an L-shaped gap in cross section.
  • this must either be done field by field in horizontal steps (erecting a post, threading the formwork panels laterally, threading the next post and so on), or the posts must be set up at appropriate intervals from each other and then the formwork panels must also be used here be threaded from above.
  • the formwork is then dismantled in the reverse order.
  • the invention now aims to develop the formwork so that it has a simple structure and both for structures with straight or curved walls can be used.
  • Successive formwork panels within the formwork which are connected to one another at their edges via the flange-like webs, should be able to be arranged in a horizontal or in a vertical row.
  • the flange-like webs have wedge-shaped incisions or undercuts at their upper and lower ends and that a boundary plane of the wedge-shaped, laterally open incision is formed by the outside of the formwork panel and the front edges of the webs opposite the edges of the Formwork panels are set back, and so limit the incisions or undercuts of the webs of adjacent formwork panels, at least in the viewing direction at right angles to the plane of the webs, undercut groove-like cutouts in which the carrier lies.
  • formwork panels have vertically extending stiffening webs or stiffening ribs on their rear side, so that the formwork panels can be laid bent around vertical axes.
  • adjacent formwork panels abut one another directly, namely with their vertical stiffening webs or stiffening ribs on the edge, the vertical stiffening webs or stiffening ribs or stiffening ribs of adjacent panels lying against one another being screwed or otherwise braced.
  • the horizontal upper and lower edges of these formwork panels are "open", with which these formwork panels can be suspended in horizontally lying and extending beams and support rings, through which, especially when the rings are circumferentially closed, the horizontal forces acting on the formwork when pouring the casting compound can be included without special additional support.
  • this formwork according to the invention also enables concreting to be continued step by step, i.e. After the concrete has been poured in, the lower formwork panels can be removed and put back on top of the formwork, so that one and the same formwork panel or one and the same formwork ring is gradually inserted into the formwork at regular intervals in the erection of a high masonry body and is removed from it, so that the total formwork effort is considerably reduced compared to conventional formwork methods and formwork equipment.
  • Fig. 1 shows a view of the outside of a formwork panel 1 of elongated shape.
  • This formwork panel is made of sheet steel that is flexible.
  • Four mutually parallel webs 2 in a vertical arrangement are attached to the outside of this panel 1, the respective outer webs 2 being flush with the vertical marginal edges 3 of the formwork panels 1.
  • This formwork panel 1 can be installed (Fig. 3 - top view). However, it can also be bent to different curvatures, as shown in FIGS. 3 to 6 in plan view.
  • recesses 4 are provided as uniformly as possible over its height, and in which locking members are used when the panels 1 are assembled to formwork.
  • wedge-shaped incisions 5 are provided at the upper and lower ends of these webs 2, one boundary surface of these wedge-shaped incisions 5 being formed by the outside of the formwork panel 1.
  • the front edges 6 of the webs 2 are set back with respect to the horizontal edges 7 and 8.
  • the formwork panels preferably have a length of 3.14 m (n) or a multiple or an integral part, e.g. 1.57 m, 52 cm and the like.
  • the metal sheets are approximately 50 cm to 100 cm high and are flexible in one direction.
  • the second main element of the formwork to be discussed here is a beam that is subjected to tensile or compressive stress and is designed as a ring in the case of circular formwork.
  • FIG. 7 now shows the cross section through a formwork panel 1 described above. erected formwork for a rotunda.
  • a distance a which corresponds to the thickness of the wall to be erected
  • two rings made of U-shaped rails 10 and 11 are fastened with screws 12, the cheeks of the U-shaped rails 10 and 11 resting directly on the foundation plate 9 .
  • FIG. 22 in detail and on a larger scale than in FIG. 7.
  • a ring made of U-shaped profiles a ring made of an L-profile 13 can also be placed. This is illustrated in Fig. 23.
  • the formwork panels 1 are now individually attached to the upright flanges of the rings facing each other from the profile rails 10 and 11, the wedge-shaped incisions 5 mentioned taking up these flanges (see FIGS. 22 and 23).
  • These formwork panels 1, which are plugged on and follow one another in the horizontal direction, are connected to form a ring. This can be done with socket pins 14 and wedges 15, as shown in FIG. 18 in a top view.
  • the plug pin 14 has a conical free end shaft 17 and a widened head 16.
  • a slot 18 provided in the bolt shaft receives the clamping wedge 15 mentioned.
  • wedge shoes 19 can also be used, which are pushed and clamped onto appropriately designed wedge brackets 20 along the vertical edges 3 of the formwork panels 1.
  • the marginal edges 3 of the formwork panels 1 butt against one another.
  • FIG. 20 Another type of connection of the formwork panels 1 which follow one another in the horizontal direction is illustrated in FIG. 20.
  • the one vertical edge 3 of the formwork panel 1 is equipped with a plurality of welded-on bolts 21 over its length, each bolt having an elongated hole recess for receiving a clamping wedge 22.
  • the other edge 3 'of the formwork panel 1' adjoining in the horizontal direction has a series of holes 23 which are designed so that they can accommodate the bolts 21 mentioned.
  • the joint produced in this way between two successive formwork panels 1 and 1 '- successively in the horizontal direction - is stepped here in steps.
  • FIG. 21 in which equivalent parts are provided with the same reference numbers in comparison with FIG. 20.
  • the holes 23 of one row of holes are arranged in a separate baffle plate 24, which is welded to the edge of one formwork panel 1 'and which covers the actual joint, formed by the two edges 3 and 3' of the formwork panels 1 and 1 '.
  • Ring-shaped supports 25 and 26, as can be seen in FIG. 7, are now used on the rings made from the formwork panels 1 and 1 ', the outer ring support 26 being designed as a tension member and the inner ring support 25 as a pressure member.
  • the incisions 5 of the webs 2 described above receive the flanges of the beams facing the formwork in a form-fitting manner.
  • Formwork panels 1 are in turn lined up on the structures thus produced and connected and aligned with one another in the circumferential direction in the manner described above, this process is repeated until the formwork has reached the necessary height. It can be seen from Fig. 7 and in particular from Figs. 8 to 13 and 15 that the above-mentioned cuts of two superimposed webs 2 form an undercut groove which form-fit the formwork panel 1 facing and abutting flange of the respective circular ring beam .
  • the ring carriers 25 and 26 can be designed differently. However, they expediently consist of individual ring segments which are braced together. The cross sections of these beams can be very different.
  • Fig. 8 shows an I-shaped carrier, on the end faces and near the outer flange 27 sleeves 28 are welded, the axes of which are parallel to the axis of the profile.
  • the carrier is made from a strip steel 29 with a box profile 30 welded on the outside.
  • sleeves 28 are provided on the end face.
  • the flange 31 which bears directly against the formwork panel 1, has a shoulder-like projection 32 in the center, which, when properly installed, lies between the edges 7 and 8 of two panels which follow one another in the vertical direction.
  • two L-shaped rails 33 On the side of the flange 31 facing away from it, two L-shaped rails 33, spaced apart from one another, run with their free legs facing away from one another. These two L-shaped sections delimit a central space 34 into which spacers can be inserted, which are to be connected to the second formwork skin. This indicates the dashed line 35 here.
  • the carrier shown here in FIG. 10 and described above is designed as a rolled profile.
  • FIG. 11 A construction similar to the embodiment according to FIG. 8 is shown in FIG. 11, but here the incision 5 in the webs 2 is delimited by parallel edges.
  • the desired and necessary tension between the girder and the formwork panel is achieved here by the flange of the horizontally lying girder, which is wedge-shaped in cross section.
  • the support shown in FIG. 10 is designed as a rolled profile
  • the support according to FIG. 13, which has an equivalent cross section to the support according to FIG. 10 is welded together from individual profile rails.
  • FIG. 12 shows a beam made of a T-shaped rail. Beams of the type explained above serve mainly as tension elements, they are laid on the outside of an annular formwork.
  • FIGS. 14 and 15 For lower loads, normal simple band steels 36 can also be used as tension elements, this is shown in FIGS. 14 and 15.
  • 36 sleeves 28 are welded to the end face of the steel strip, for receiving connecting and tensioning screws. The view of such a connection point can be seen in FIG. 14.
  • Fig. 15 is a section along the line C-C in Fig. 14.
  • FIG. 16 illustrates a step-like incision in the webs 2 "of the formwork panels 1".
  • brackets are provided which, when properly assembled, grasp the carrier 37 between them in the manner of pliers. This is illustrated on a smaller scale compared to FIG. 16 in FIG.
  • the other segment 25 ' carries an eccentric 40 on the edge which can be pivoted about the fixed axis 41 by means of a hand lever 42 the undercut grooves formed by the paired arrangement of the incisions 5 of the webs 2 inserted and suspended support segments are braced against each other by the actuation of these eccentrics.
  • the individual support segments can be pre-bent, but it is also possible to use supports that can be adjusted to a desired curvature.
  • Such adjustable straps have become known in a variety of forms. 27 shows one of these shapes in plan view.
  • the ends of the carrier segment 25 "'are connected to tie rods 43, the mutually facing ends of these rods 43 are arranged on an actuator 44 whose length is adjustable. By changing the length of the actuator 44, the curvature of the segment 25"' can be adjusted.
  • Carrier segments that form a polygonal ring can also be used here. Another embodiment of a carrier is illustrated in FIGS. 28 to 30.
  • the carrier shown here in cross section in FIG. 30 is formed in two parts.
  • One part consists of a curved T-beam 45, the central web 46 of which has a row of holes 47 on the edge.
  • the second part is designed as a steel band 48, which on one of its two broad sides carries webs 49 arranged at right angles thereto, which lie in the central plane of this band 48.
  • 49 elongated holes 50 are incorporated into these webs.
  • This steel band 48 is easily bendable and can be used as a tension member.
  • the two parts are screwed together.
  • the formwork panels 1 lying one above the other are each arranged in such a way that the webs 2 are aligned in the vertical direction. This is not absolutely necessary for the invention.
  • the webs 2 of the formwork panels 1 which follow one another in the vertical direction can also be laterally offset from one another. In such a case, too, the horizontal ring carriers, whether they actually run circularly or polygonally, are held in a form-fitting manner.
  • a circular formwork e.g. B. an external formwork
  • the formwork panels described above are inserted into a leveling device attached to the foundation, as has been explained in connection with FIGS. 22 and 23.
  • formwork rings are formed that collide with each other.
  • the incisions in the webs create space for the horizontal beam.
  • this beam takes over tensile forces that arise when the concrete is poured into the formwork.
  • this beam also has the task of sealing the joint between two formwork panels one above the other.
  • the wedge shape of the incision or the wedge shape of the flange of the carrier aligns and fixes the individual panels. The assembly is continued by placing the ring on the belt etc. until the desired height is reached.
  • the inner formwork is constructed in the same way and continuously closed in accordance with the progress of the concreting.
  • the straps are designed as U-straps (FIGS. 10 and 13).
  • the inside or outside straps or belts must be adjusted to the required radius.
  • These carriers or belts can also be designed polygonal.
  • the carrier or belt can be designed such that they have gag eccentric or wedge or screw devices with which the desired pretensioning forces are to be applied.
  • This formwork can be used for concreting at any height during concreting. It is also possible, depending on the construction progress, to dismantle the formwork in the area in which the concrete has already set and to put the formwork elements thus obtained on the upper edge of the formwork.
  • either the inner formwork can be created first, then it is reinforced and then the outer formwork is continuously raised. This process can also be done in the opposite way by first installing the outer formwork. Due to the stabilizing effect of the straps or girders, only an inner or outer podium construction, as is already used in known formwork systems, is necessary for erecting the formwork. In this context, it should also be noted that such a work platform can also be supported against the inner belts.
  • the formwork constructed in this way has sufficient stability so that additional stiffening and stiffening is not necessary. Spacers can also be fitted into the formwork at any height.
  • the horizontal girders or belts are to be provided as tie girders or tie girdles in accordance with the intended curvature. Then, as with cylinder formwork, these are alternately built up with the flexible formwork elements. After the construction, the necessary bindings can be inserted.
  • the flexible formwork panels are preferably made from sheet steel. Other materials such as glass fiber reinforced plastics or glass fiber reinforced profile beams can also be used here. Plywood is also a useful material.
  • cross sections can be used for the horizontal belts and supports has been shown above using exemplary embodiments. It has also been shown that different profiles can be used on the outside and inside for these belts or carriers.
  • the flexible formwork has the advantage that both the horizontal girders or belts and the formwork panels are flexible in both directions, and can therefore be used for circularly symmetrical inner and circularly symmetrical outer formwork.
  • the elements are one. well structured, easy to keep clean and easy to clean.
  • the same also applies to the horizontal beams or belts, which are preferably connected to one another in such a way that they can be carried out continuously by a rounding or bending machine. The bending of these belts or beams can either be done on site or prepared in the workshop.
  • brackets can be hung on the rigid horizontal beams or belts, on which a podium can be built.
  • the formwork can also be used as self-climbing formwork. In this case, an approx. 2 m high section is formed, concreted and then moved from the lower level upwards, and then the next stage is formed again.
  • the formwork system described is in principle penetration-free.
  • wall sections of any height can be concreted without the drop height corresponding more than the height of the formwork panel.
  • FIGS. 32 and 33 A first exemplary embodiment of this is shown in FIGS. 32 and 33 in a side view and a top view.
  • the web 61 is welded onto the formwork panel 60.
  • This web has a blunt end edge 66 which is set back from the edge of the formwork panel 60.
  • this web 61 there is a rectangular recess 62, the longitudinal axis of which lies parallel to the longitudinal axis of the web and in which a wedge 63, which is designed like a fork and is longitudinally displaceable in this recess 62, is inserted.
  • the arrow 67 shows the direction of displacement for this wedge 63.
  • This wedge is displaceable over the length of the recess 62. Thanks to this construction, it is possible to line up formwork panels 60, then insert the carrier 64 and then produce the interlocking connection by moving the wedge 63, which then positively engages over the flange 65 of the carrier 64.
  • FIGS. 32 to 35 have the advantage that such formwork panels can be strung together, then the supports 64 are first put on and then the necessary tensioning is produced by moving or driving in the wedges 63 and 63 '.
  • FIG. 36 shows the top view of a formwork panel 1, corresponding to Fig. 3, but here the webs 2, which are formed from L-shaped profiles, are releasably attached by means of screws. These screws are indicated here by a dash-dotted line 69.
  • FIGS. 37 and 38 Another construction for the releasable fastening of the webs 2 is shown in FIGS. 37 and 38.
  • rows of bow-shaped eyelets 70 are arranged on the formwork panel 60 '.
  • the L-shaped profile rails, which serve as webs 2 have a plurality of openings arranged in a row on their one flange for receiving these eyelets 70.
  • Wedges 71 which can be driven in serve to firmly connect the two parts, namely the formwork panel 60 'and the web 2.
  • Fig. 39 shows a formwork element which has been constructed from trapezoidal formwork panels.
  • the individual panels 1-1 ' v have a trapezoidal shape, but the successive panels are of different sizes. In this way, trapezoidal or triangular formwork elements can be erected, which are also bendable in themselves, so that a partial surface of a cone shell can be formed with them.
  • FIG. 40 Another construction for the formation of trapezoidal or triangular formwork elements is shown in FIG. 40 in view.
  • formwork panels of the same size and rectangular shape are connected to one another, but the supports 25 'have wedge-shaped flanges 72.
  • Such a support is shown in an oblique view in FIG. 41. It is also possible to provide a flange 73 with parallel edges and a flange 74 with converging edges on a carrier 25 (FIG. 42).
  • formwork panels can be arranged within formwork elements so that their webs 2 or 61 are upright or lie, as has been illustrated, for example, in connection with the formwork elements according to FIGS. 39 and 40.

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Claims (17)

1. Coffrage pour réaliser des constructions en des produits susceptibles d'être coulés comme par exemple du béton avec éventuellement des panneaux de coffrage superposés, panneaux réalisés en un matériau déformable élastiquement comme par exemple des plaques d'acier qui peuvent être déformées dans le domaine élastique pour la fabrication de constructions courbes et ces panneaux de coffrage présentent sur leur face extérieure au niveau des bords en regard et de préférence près de ceux-ci, les mêmes entretoises en forme de brides, et la mise en oeuvre dans un coffrage, les panneaux de coffrage qui se suivent directement, les bords munis des entretoises en forme de brides sont reliés par des éléments de verrouillage et pour soutenir les panneaux de coffrage successifs, ils sont munis de poutres formant des organes de traction ou de compression appliqués contre la face extérieure des panneaux de coffrage, coffrage caractérisé en ce que les entretoises en forme de brides (2, 61) présentent à leur extrémité supérieure ou inférieure des encoches en forme de coins (5) ou des découpes et l'un des plans limites de l'encoche (5) en forme de coin, ouverte sur les côtés, est formé par la face extérieure du panneau de coffrage et les arêtes frontales (6) des entretoises (2) sont en retrait par rapport aux bords (7, 8) des panneaux de coffrage (1) et en ce que les encoches (5) ou découpes des entretoises (2, 61) de panneaux de coffrage voisins (1, 60) délimitent au moins dans la direction perpendiculaire au plan des entretoises (2, 61 ) des découpes en forme de rainures à contre-dépouille recevant les poutres (25, 25', 25", 26).
2. Coffrage selon la revendication 1, caractérisé en ce que les entretoises (2, 61) des panneaux de coffrage (1, 60) juxtaposés sont alignées (fig. 14, 24).
3. Coffrage selon la revendication 1, caractérisé en ce que les entretoises extérieures (2, 61) sont alignées sur les bords verticaux des panneaux de coffrage (1, 60).
4. Coffrage selon la revendication 1, caractérisé par plusieurs entretoises verticales prévues sur la face extérieure et à intervalles réguliers sur la longueur L d'un même panneau de coffrage rectangulaire (1).
5. Coffrage selon l'une des revendications 1 à 4, caractérisé en ce que la longueur L des panneaux de coffrage est égale à 3,14 m ou un multiple entier de cette longueur.
6. Coffrage selon la revendication 1, caractérisé en ce que les poutres (25, 26) sont des bandes placées dans les cavités délimitées par les encoches (5) des entretoises (2) et les cavités forment des rainures à contre-dépouille (fig. 8-13; 15).
7. Coffrage selon la revendication 6, caractérisé en ce que la largeur des bandes est supérieure à la profondeur des entailles (5).
8. Coffrage selon la revendication 6, caractérisé en ce que la bande constitue l'aile d'une poutre à section ou forme en T (fig. 8-13; 15).
9. Coffrage selon la revendication 1, caractérisé en ce que les poutres utilisées comme organes de traction sont munies à leurs extrémités de douilles (28) dont les axes sont parallèles à l'axe des poutres et qui servent à recevoir des vis de tension permettant de relier entre eux des segments de poutre successifs.
10. Coffrage selon la revendication 1, caractérisé en ce que les poutres utilisées comme organes de compression sont munies à leurs extrémités d'organes d'écartement (40) et de surfaces d'appui (39) pour des organes d'écartement comme par exemple des coins ou des excentriques (fig. 24, 25, 26).
11. Coffrage selon la revendication 8, caractérisé en ce que la poutre en forme de 1 est réalisée en deux parties, une partie étant une poutre en T dont le bord libre de l'âme est muni d'une rangée de perçages et dont l'autre partie est une bande avec des ailes distantes les unes des autres le long de l'axe longitudinal, ailes qui sont perpendiculaires au plan de la bande et placées dans le plan médian, en étant constituées par des plaques principalement rectangulaires dont le bord opposé à la bande comporte chaque fois un trou oblong, les deux parties étant vissées l'une à l'autre pour former une poutre en 1 (fig. 28-39).
12. Coffrage selon la revendication 1 ou 7-10, caractérisé en ce que l'âme (32) de la poutre, appliquée au lieu de sa face tournée vers le panneau de coffrage a une épaisseur correspondant sensiblement à l'épaisseur du panneau de coffrage (1) et en position de montage, et se trouve entre le bord supérieur et le bord inférieur de deux panneaux de coffrage (1) qui se font suite dans la direction verticale (fig. 10, 13).
13. Coffrage selon la revendication 1, caractérisé en ce que l'entretoise (2) est formée de profilés repliés et la bride tournée contre la face arrière d'un panneau de coffrage (60') comportant plusieurs ouvertures à travers lesquelles passent des oeillets (70) en forme d'étriers soudés au panneau de coffrage (60'), des coins (71) engagés dans les oeillets (70) bloquant les entretoises (2) sur les panneaux de coffrage (60') (fig. 37 et 38).
14. Coffrage selon la revendication 1, caractérisé en ce que l'encoche ou la découpe à l'extrémité de l'entretoise (61) est formée par des coins amovibles (63, 63') (fig. 32-35).
15. Coffrage selon la revendication 14, caractérisé en ce que le coin (63) est guidé en coulissement sur l'entretoise (61) (fig. 32-33).
16. Coffrage selon la revendication 1, caractérisé en ce que les poutres (25, 25') ayant une section en forme de 1 ont au moins une aile (72, 74) dont les arêtes marginales convergent (fig. 40-42).
17. Coffrage selon la revendication 15, caractérisé en ce que le coin (63) a une forme de fourche (fig. -33).
EP85114188A 1984-11-16 1985-11-07 Coffrage pour la réalisation de constructions en matériaux coulés, p.ex. béton Expired - Lifetime EP0182212B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0364284A AT390111B (de) 1984-11-16 1984-11-16 Schalung zur errichtung von baukoerpern aus gussfaehigen materialien, wie beispielsweise beton
AT3642/84 1984-11-16

Publications (3)

Publication Number Publication Date
EP0182212A2 EP0182212A2 (fr) 1986-05-28
EP0182212A3 EP0182212A3 (en) 1987-06-24
EP0182212B1 true EP0182212B1 (fr) 1990-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114188A Expired - Lifetime EP0182212B1 (fr) 1984-11-16 1985-11-07 Coffrage pour la réalisation de constructions en matériaux coulés, p.ex. béton

Country Status (4)

Country Link
US (1) US4742985A (fr)
EP (1) EP0182212B1 (fr)
AT (1) AT390111B (fr)
DE (1) DE3575324D1 (fr)

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US4915345A (en) * 1987-12-18 1990-04-10 Symons Corporation Concrete forming system for curved walls
US4955579A (en) * 1989-06-23 1990-09-11 Lee Yuan Ho Concrete forming device with corner forming accessory
CA2006575C (fr) * 1989-12-22 1993-06-22 Vittorio Spera Ensemble prefabrique par coffrage a beton coule
US5125617A (en) * 1990-03-29 1992-06-30 Miller Alan P Adjustable radius walers for forming
FR2672921A1 (fr) * 1991-02-19 1992-08-21 Outinord St Amand Coffrage circulaire.
DE59304935D1 (de) * 1992-04-01 1997-02-13 Rund Stahl Bau Gmbh & Co Schalungstafel
DE9313096U1 (de) * 1993-09-01 1994-01-13 Pflug Max Dipl Ing Variables Bau- und Schalelement zur Herstellung von Bauwerksteilen und als Schalung für z.B. Betonbauteile
DE59503493D1 (de) * 1994-05-16 1998-10-15 Otto Heinzle Flächenschalung für zylindrische Betonbauten
CH687264A5 (de) * 1995-02-08 1996-10-31 Otto Heinzle Schalung mit Arbeitsgeruesten zum Bau eines Eiformfaulbehaelters mit zweifach gekruemmter Wand.
US5884442A (en) * 1997-03-28 1999-03-23 Structural Systems Ltd. Composite joist and concrete panel assembly
US6477816B1 (en) 1999-04-16 2002-11-12 Frommelt Industries Of Canada, Inc. Pit form
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Also Published As

Publication number Publication date
EP0182212A2 (fr) 1986-05-28
EP0182212A3 (en) 1987-06-24
ATA364284A (de) 1989-08-15
DE3575324D1 (de) 1990-02-15
US4742985A (en) 1988-05-10
AT390111B (de) 1990-03-26

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