EP0123193B1 - Méthode pour la réalisation de constructions en béton qui sont rotativement symétriques et de grand diamètre et coffrage pour la mise en oeuvre de cette méthode - Google Patents

Méthode pour la réalisation de constructions en béton qui sont rotativement symétriques et de grand diamètre et coffrage pour la mise en oeuvre de cette méthode Download PDF

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Publication number
EP0123193B1
EP0123193B1 EP19840103913 EP84103913A EP0123193B1 EP 0123193 B1 EP0123193 B1 EP 0123193B1 EP 19840103913 EP19840103913 EP 19840103913 EP 84103913 A EP84103913 A EP 84103913A EP 0123193 B1 EP0123193 B1 EP 0123193B1
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EP
European Patent Office
Prior art keywords
shuttering
supporting elements
formwork
elements
main supporting
Prior art date
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Expired
Application number
EP19840103913
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German (de)
English (en)
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EP0123193A1 (fr
Inventor
Hugo Dipl. Ing. Mag. 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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Application filed by Rund Stahl Bau GmbH filed Critical Rund Stahl Bau GmbH
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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
    • 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
    • E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
    • E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete

Definitions

  • the invention relates to a method for erecting rotationally symmetrical concrete structures of large diameter, with successive. be shuttered annular portions and molded, and a mold for carrying out 'of the process, consisting of an outer shuttering and an inner shuttering.
  • the object of the invention is therefore to create a method and a formwork according to or with which rotationally symmetrical concrete structures can be created, for which the conventional automatic climbing machines are still uneconomical and for which the applicant's traditional cone formwork system can no longer be used.
  • each ring-shaped section be switched on and cast in individual sectors, the inner formwork of this sector being removed after the pouring and setting of a sector, and the outer formwork as a supporting part for the sectors until the same has hardened or until closed of an annular section is left in the operating position.
  • the formwork according to the invention is characterized in that the outer formwork and the inner formwork extend over a sector of an annular section of the concrete structure to be manufactured and the opening angle of the sectors is approximately between 15 ° and 40 ° and that the outer formwork and the inner formwork consist of approximately vertically extending main load-bearing elements and horizontal assembly belts and the necessary formwork panels, the length of the main support elements of the outer formwork approximately equal to twice the concreting height of a ring-shaped section to be manufactured, and these main support elements protrude below the lower formwork edge, and that the inner formwork is releasably attached to the outer formwork using spacers is.
  • the present invention is intended to create rotationally symmetrical concrete structures.
  • B. 1 to 4 m high annular sections can be created. According to the present invention, these ring-shaped sections are created by one or more formworks arranged in a sector of a circle, so that one can practically speak of a traveling formwork element.
  • the main supporting elements of the formwork have a multiple function. These serve as a bracket and alignment function for the internal formwork and as a force dissipation during the concreting phase.
  • these longer main load-bearing elements serve as auxiliary load-bearing devices for the freshly switched-off concrete of the respective sectors.
  • this outer formwork remains longer, these main supporting elements serve to stabilize sectors standing alone up to the connection with the other sectors of the entire annular section.
  • the inner formwork can be supported on a platform that can be moved along the inner wall of the concrete structure to be manufactured.
  • the outer formwork is fixed during manufacture from the second annular section on the preceding, hardened annular section and the inner formwork is fastened to the outer formwork by means of spacers.
  • tubular scaffolds with the podium (s) Platforms in the height of an annular section can be placed.
  • the main support elements of the latter can be spaced apart from one another accordingly.
  • normal supporting elements are used between the main supporting elements of the outer formwork, the length of which corresponds approximately to the concreting height.
  • the normal supporting elements can be extended to the length of the main supporting elements by attachable auxiliary supporting elements.
  • the invention provides that the horizontally running mounting belts can be changed in their curvature.
  • the main support elements can be separated with respect to their length approximately in their central region by means of a flange connection, but can be firmly connected.
  • the formwork according to the invention can also be started on a level floor or at a transition between differently shaped concrete structure sections.
  • vertical ribs provided on the outer formwork are formed by U-shaped rails integrated in the main support elements.
  • At least the main support elements are designed as arch supports with tensioning elements.
  • Figures 1, 2 and 3 show a section of a rotationally symmetrical concrete structure, wherein the continuously running manufacturing process is shown, Figures 4 to 6 an outer formwork in front view, in plan view and in side view, only one main support element is shown in the side view, the Figures 7 to 9 an inner formwork in the same representation as the outer formwork, Fig. 10 shows a horizontal section through a concrete structure with an inserted, movable platform and Fig. 11 is a schematic representation of the workflow in the manufacture of an annular section of a concrete structure.
  • the object of the present invention is therefore to create a rotationally symmetrical concrete structure which has a relatively large diameter and leads to an average height.
  • a conically tapering concrete structure 2 is to be placed on a cylindrical concrete structure, this concrete structure not being switched on over the entire height, since this would lead to an enormous high consumption of formwork material.
  • Individual ring-shaped sections 3 are produced here, which are always placed one above the other. In the present invention, it is particularly important that these annular sections 3 are not molded and cast in one piece, but in individual sectors 4, the opening angle of which is approximately between 15 ° and 40 °, as can be seen, for example, from FIG. 11 .
  • the individual annular sections 3 are cast at a height of approximately 1 to 4 m.
  • the formwork therefore always extends only over a short sector of the respective annular section 3 of the concrete structure 2 to be produced.
  • Both the outer formwork 5 and the inner formwork 6 consist of supporting elements and horizontally running mounting belts and the necessary formwork panels.
  • the outer formwork 5 consists of main support elements 7, the length of which corresponds approximately to twice the concreting height H, and of normal support elements 8 and the approximately horizontally running mounting belts 9.
  • the main support elements 7 protrude downward from the outer formwork 5, so that this area of the main support elements 7 projecting downward can be fixed to the already manufactured annular sections 3.
  • the inner formwork consists of standard support elements 10 and approximately horizontally running mounting belts 11.
  • the connection between the outer formwork 5 and the inner formwork 6 is made via spacers or formwork anchors, which are not shown in detail, however.
  • the main load-bearing elements 7 and the outer formwork 5 also create an auxiliary load-bearing device for the freshly switched-off concrete, and also a stabilization of single sectors 4 up to the connection with the other sectors.
  • the entire sector formwork is finally set up, the inner formwork being fixed to the outer main support elements 7 by means of special spacers.
  • the lateral formwork is used for the corresponding sector 4. Then the standard elements are inserted and final adjustment is carried out.
  • the space enclosed between the formwork can be filled with concrete, this concreting being carried out by means of cone areas that can be closed continuously. There is then a phase of hardening of the concrete, with 12 hours being assumed for daily stages.
  • the inner formwork 6 is loosened and the inner formwork 6 is moved horizontally further by means of the mobile platform 12.
  • the concreting and construction progress can be doubled or tripled if, instead of a podium 12, several such pods 12 are in use, so that sectors 4 can be switched on and poured out simultaneously or successively, for example, offset by uniform angles.
  • 11 shows, for example, how the individual sectors 4 can be produced in a corresponding daily rhythm.
  • the first sector is manufactured on the first day and the diametrically opposing sector on the second day.
  • the other sectors then follow each other diametrically opposite one another in accordance with the numbering shown in FIG. 11.
  • Such an annular section 3 would thus be completed in twenty days.
  • the sectors 4 designated with the numbers 1 and 2 are manufactured simultaneously on one day, after which the sectors labeled with the numbers 3 and 4 can then be manufactured the next day, etc.
  • the freshly concreted sectors 4 are held by the remaining main support elements 7.
  • the standard elements that is to say the intermediate support elements and also the standard formwork panels, can also be removed from the outer formwork, since sufficient support is ensured by the main support elements 7.
  • a prepared tubular frame 13 is placed on the movable platform 12 according to the stage height.
  • the inner formwork 6 and the outer formwork 5 can be prepared for the new curvature either on the spot or on the ground.
  • the inner formwork has two or more mounting straps 11 which can be adjusted according to the required radius. Together with the vertical supports 10 and correspondingly used standard elements, these form the supporting framework for an orthotropic plate.
  • the formwork surface itself consists of standard plates and cone elements corresponding to the inclination, which are adapted accordingly after each annular section.
  • the outer formwork 5 which at the same time assumes the main load-bearing function, consists of full and half main load-bearing elements 7 and 8.
  • additional auxiliary load-bearing elements 14 can be flanged to the normal load-bearing elements 15.
  • Vertical ribs 16 can be provided in the outer formwork, which ribs are formed by U-shaped rails integrated in the main support elements 7.
  • the main support elements 7 are designed in such a way that they can be separated by a flange connection in their central region, based on their length, but can be firmly connected.
  • the formwork according to the invention can also be started on a level floor or at a transition between different concrete structures 1 and 2. This can be seen, for example, from FIG. 1. Only the upper half of a main support element 7 is used here, the outer formwork 5 or these main support elements 7 being fixed by anchoring 17. After concreting the first ring-shaped section 3, the lower part of the main support elements 7 is then again flasked, since the main support elements 7 can then be fastened to the previously concreted ring-shaped section 3.
  • the curvature is also ensured in the case of the outer formwork 5 by means of adjustable mounting straps 9.
  • the main support elements 7 arranged on the edge of the outer formwork 5 serve for the exact adjustment of the formwork. By an inserted clamping device 18, the Nei be corrected accordingly.
  • the main support elements 7 are also designed as arch supports.
  • the arc sections can be appropriately tightened or pushed apart by the tensioning device 18, so that there is a possibility of correcting the inclination here.
  • the standard elements are located between the main supporting elements 7. Between the standard elements there is a conical cone element 19 in each field, which is closed in accordance with the progress of the concreting by panels to be inserted and wedged, similar to a funnel formwork. This enables flawless compaction even with concreting heights of over one meter. In addition, this cone reduces the corresponding curvature by cutting.
  • the standard elements After concreting and the first hardening, the standard elements are pushed out.
  • the main support elements 7 and the partial main support elements 7 at the edges are left in place depending on the concrete strength. These can be removed at a later time or when the next annular section 3 is reached.
  • the standard elements are expediently provided with a concrete plan formwork surface or a similar formwork surface.
  • two coaxial rails 20 and 21 are provided, which are supported on the one hand on a building projection 22 and on the other hand on scaffolding towers 23.
  • the scaffolding towers 23 are secured against the concrete structure 1 by bracing 24.
  • FIGS. 1 to 3 A continuous workflow can be seen in sequence from FIGS. 1 to 3, it also being apparent that an additional tubular frame 13 is placed at a height of the individual annular sections 3.

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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)

Claims (13)

1. Procédé pour réaliser une construction en béton, à symétrie de rotation, de grand diamètre, selon lequel on réalise le coffrage de segments annulaires (3), successifs et on coule ces segments, caractérisé en ce que chaque segment annulaire (3) est coffré et est coulé en secteur séparé et après la coulée et la prise d'un secteur (4), on enlève le coffrage intérieur (6) de ce secteur et on laisse le coffrage extérieur (5) comme pièce porteuse pour les secteurs (4) jusqu'à ce qu'ils soient pris ou jusqu'à la fermeture d'un segment annulaire (3).
2. Procédé selon la revendication 1, caractérisé en ce qu'on réalise simultanément deux ou plusieurs secteurs (4) décalés les uns des autres suivant le même angle, et contre lesquels on réalise successivement les secteurs (4) consécutifs dans le sens des aiguilles d'une montre ou dans le sens contraire des aiguilles d'une montre.
3. Procédé selon la revendication 1, caractérisé en ce qu'à partir du second segment annulaire (3), le coffrage extérieur (5) est fixé au segment annulaire (3) précédent, ayant pris et on fixe le coffrage intérieur (6) au coffrage extérieur (5) par l'intermédiaire d'organes d'écartement.
4. Coffrage pour la mise en oeuvre du procédé selon les revendications 1 à 3, se composant d'un coffrage extérieur (5) et d'un coffrage intérieur (6), caractérisé en ce que le coffrage extérieur et le coffrage intérieur (5, 6) s'étendent sur plus d'un secteur (4) d'un segment annulaire (3) de la construction en béton (2) à réaliser, et l'angle d'ouverture des secteurs (4) se situe sensiblement entre 15° et 40° et en ce que le coffrage extérieur (5) et le coffrage intérieur (6) se composent d'éléments porteurs principaux (7, 10) pratiquement verticaux et de ceintures de montage (9, 11) horizontales ainsi que de tableaux de commutation, nécessaires, la longueur des éléments porteurs principaux (7) du coffrage extérieur (5) correspondant pratiquement à la double hauteur à bétonner (H) d'un segment annulaire (3), terminé, et cet élément porteur principal (7) déborde vers le bas le bord inférieur du coffrage et en ce que le coffrage intérieur (6) est fixé de façon amovible au coffrage extérieur (5) par l'intermédiaire d'organes d'écartement.
5. Coffrage selon la revendication 4, caràcté- risé en ce que le coffrage intérieur (6) peut s'appuyer sur un podium (12) mobile le long de la paroi intérieure de la construction en béton (2) à réaliser.
6. Coffrage selon la revendication 5, caractérisé par deux ou plusieurs podiums mobiles (12) comportant un coffrage intérieur (6) à soutenir, et qui sont prévus le long de la limite intérieure du corps en béton (2) à réaliser.
7. Coffrage selon les revendications 5 et 6, caractérisé en ce que le ou les podiums (12) peuvent recevoir des échafaudages tubulaires (13) à plate-formes à la hauteur respective d'un segment annulaire (3).
8. Coffrage selon la revendication 4, caractérisé en ce qu'entre les éléments porteurs principaux (7) du coffrage extérieur (5), il y a des éléments porteurs normaux (8, 15) parallèles aux précédents et dont la longueur correspond sensiblement à la hauteur à bétonner (H).
9. Coffrage selon la revendication 8, caractérisé en ce que les éléments porteurs normaux (8, 15) peuvent être prolongés par des éléments porteurs auxiliaires (14) susceptibles d'être rapportés pour atteindre la longueur des éléments porteurs principaux (7).
10. Coffrage selon la revendication 4, caractérisé en ce que la courbure des ceintures de montage, horizontales (9, 11) est variable.
11. Coffrage selon la revendication 4 et l'une des revendications précédentes, caractérisé en ce que rapportés à leur longueur, les éléments porteurs principaux (7) peuvent être séparés sensiblement en leur milieu par une liaison à bride en étant toutefois reliés solidement.
12. Coffrage selon la revendication 4 et l'une des revendications précédentes, caractérisé en ce que les nervures verticales (16) prévues sur le coffrage extérieur (5) sont formées par des rails à section en U intégrés aux éléments porteurs principaux (7).
13. Coffrage selon l'une des revendications 4 et 8 à 12, caractérisé en ce qu'au moins les éléments porteurs principaux (7) sont réalisés sous la forme de porteurs courbes munis d'éléments tendeurs (18).
EP19840103913 1983-04-15 1984-04-07 Méthode pour la réalisation de constructions en béton qui sont rotativement symétriques et de grand diamètre et coffrage pour la mise en oeuvre de cette méthode Expired EP0123193B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1364/83 1983-04-15
AT136483A AT377818B (de) 1983-04-15 1983-04-15 Verfahren zur errichtung von rotationssymmetrischen betonbaukoerpern grossen durchmesserssowie schalung zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
EP0123193A1 EP0123193A1 (fr) 1984-10-31
EP0123193B1 true EP0123193B1 (fr) 1986-07-30

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EP19840103913 Expired EP0123193B1 (fr) 1983-04-15 1984-04-07 Méthode pour la réalisation de constructions en béton qui sont rotativement symétriques et de grand diamètre et coffrage pour la mise en oeuvre de cette méthode

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EP (1) EP0123193B1 (fr)
AT (1) AT377818B (fr)
DE (1) DE3460383D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573800B1 (fr) * 1984-11-29 1988-10-07 Sateg Construction Sarl Coffrage autorampant
FR2659684B1 (fr) * 1990-03-16 1997-04-04 Devin Lemarchand Perfectionnement aux systemes de coffrage de parois fortement inclinees de reservoirs notamment.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1057474A (fr) * 1951-05-29 1954-03-09 échafaudage mobile pour la construction de réfrigérants
DE2452182C2 (de) * 1974-11-02 1986-05-28 Dyckerhoff & Widmann AG, 8000 München Einrichtung zum Herstellen von im Grund- und Aufriß gekrümmten Bauwerken aus Stahlbeton im Wege eines Klettervorgangs
DE2509795A1 (de) * 1975-03-06 1976-09-16 Christfried Dr Ing Rasch Fahrgeruest fuer kuehlturmbau
US4040774A (en) * 1976-04-29 1977-08-09 Research-Cottrel, Inc. Apparatus for constructing concrete walls

Also Published As

Publication number Publication date
DE3460383D1 (en) 1986-09-04
AT377818B (de) 1985-05-10
EP0123193A1 (fr) 1984-10-31
ATA136483A (de) 1984-09-15

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