EP0248813B1 - Systeme de coffrage reutilisable pour la realisation d'espaces libres dans des materiaux de construction - Google Patents

Systeme de coffrage reutilisable pour la realisation d'espaces libres dans des materiaux de construction Download PDF

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Publication number
EP0248813B1
EP0248813B1 EP86902361A EP86902361A EP0248813B1 EP 0248813 B1 EP0248813 B1 EP 0248813B1 EP 86902361 A EP86902361 A EP 86902361A EP 86902361 A EP86902361 A EP 86902361A EP 0248813 B1 EP0248813 B1 EP 0248813B1
Authority
EP
European Patent Office
Prior art keywords
hose
set forth
casing system
liquid
filled
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
Application number
EP86902361A
Other languages
German (de)
English (en)
Other versions
EP0248813A1 (fr
Inventor
Andreas Holterhus
Paul Couwenbergs
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.)
BBT BETON- BAUTECHNIK GmbH
Original Assignee
BBT BETON- BAUTECHNIK GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19853508444 external-priority patent/DE3508444A1/de
Priority claimed from DE8506996U external-priority patent/DE8506996U1/de
Priority claimed from DE19853509873 external-priority patent/DE3509873A1/de
Priority claimed from DE19853509994 external-priority patent/DE3509994A1/de
Application filed by BBT BETON- BAUTECHNIK GmbH filed Critical BBT BETON- BAUTECHNIK GmbH
Priority to AT86902361T priority Critical patent/ATE43878T1/de
Publication of EP0248813A1 publication Critical patent/EP0248813A1/fr
Application granted granted Critical
Publication of EP0248813B1 publication Critical patent/EP0248813B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063—Re-usable forms
    • E04G15/066—Re-usable forms with fluid means to modify the section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
    • E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/18—Spacers of metal or substantially 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
    • E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
    • E04G11/045—Inflatable forms

Definitions

  • the invention relates to a reusable formwork system for the production of free spaces in a building material, comprising at least one hose which is closed at one end and can be filled with a liquid via a filling and emptying valve, which penetrates the building material and determines the free space to be formed, the hose still Solidification of the building material while leaving the respective free space from the solidified building material can be removed for reuse.
  • FR-A-1 141 502 it is known to form cavities in building materials by flexible hollow bodies which are closed on one side and which are inserted into the building material and filled with water or compressed air via a filling valve.
  • the flexible hollow bodies are connected in the middle to a pull rope at their closed end and can be removed by pulling on the pull rope after the building material has solidified.
  • FR-A-1 062 968 discloses a double-walled hollow body for the same purpose, which contains an outer body made of rubberized canvas and an inner body made of soft rubber.
  • the inner body is penetrated by a spring and is filled with water. For emptying, the space between the inner body and the outer body is pressurized with compressed air.
  • the invention has for its object to provide a reusable formwork system of the type mentioned for the production of open spaces in building materials, which can be used to produce differently designed open spaces and is universally applicable, d. H. can be used on a construction site as well as in the prefabrication of components.
  • the invention has the further object to provide a reusable formwork system of the type mentioned for the production of free spaces in building materials, by which the consolidation of the building material is promoted and which provides free spaces with a particularly smooth surface without being impaired in its reusability.
  • this object is achieved in that the at least one liquid-filled hose is connected at its open end to a vibrating device.
  • liquid-filled hoses has the advantage that the incompressible liquid effectively prevents even locally restricted compression of the hose during the solidification of the building material. Due to the tight contact of the solidifying building material on the liquid-filled hose or the liquid-filled hoses, a particularly uniform and smooth surface of the free space or cavity formed is obtained. At the same time, however, the liquid filling enables vibrations to solidify the building material to be generated by exciting vibrations in the liquid-filled hose.
  • the vibrations are advantageously generated by a reciprocating piston, which acts directly on the liquid contained in a liquid-filled hose or in a feed line to which a plurality of hoses are connected in parallel.
  • a helical compression spring In order to achieve a better adaptation of the hoses to predetermined shapes of the free spaces such as arches and the like and to reliably rule out the risk of kinks or constrictions, it is expedient to insert a helical compression spring into the hose.
  • This helical compression spring has the further important advantage that when a vacuum is applied to empty the hose does not collapse but is supported by the helical compression spring. As a result, the contact surfaces between the solidified building material and the hose are reduced considerably, so that the removal of the hose from the free space or cavity formed is greatly facilitated.
  • the hose is provided with a further filler at locations where the free space or cavity is to be connected to the outer surface of the building material is detachably connected at one end to the liquid-filled hose by a clamping device and can be removed and reused after the building material has solidified and the liquid-filled hose has been removed.
  • a further free space or cavity is obtained which branches off from the cavity formed by the liquid-filled hose and opens into the outer surface or surface of the building material.
  • the laying of the hoses in the building material can be facilitated in the case of reinforced building materials such as concrete in that the reinforced building material is provided with spacers or guide elements for the hose. This ensures that the hose assumes the desired position and does not change this position in the liquid-filled state and during the solidification of the building material.
  • the reusable formwork system for the production of open spaces or cavities can be used in many different ways and in connection with a wide variety of building materials.
  • the embodiment of the reusable formwork system shown schematically in overall perspective view in FIG. 1 is shown in connection with a reinforcement 10 for concrete as a building material.
  • Such a reusable formwork system is used for.
  • the core of the reusable formwork system according to FIG. 1 is a packing 1, which consists of a series of essentially parallel hoses 2, one end of which is closed by a vent valve 3 according to FIG. 2 and the open ends of which are connected to a common supply line 4 .
  • the common feed line 4 is connected via a branch 5 to a filling and emptying valve 6 of conventional design and to a vibrating device 30 described further below in connection with FIG. 2.
  • the common supply line 4 is further provided with a safety or overpressure relief valve 7, which automatically relieves the packing 1 from an inadmissibly increased internal pressure.
  • the filler 1 or the hoses 2 are inserted into a casing 8 of conventional construction for concrete, and this casing 8 is therefore not shown in detail.
  • the filler 1 or the tubes 2 are made of rubber or plastic or another material compatible with concrete, which has a sufficient compressive strength against the internal pressures that occur, but is flexible in order to be able to follow deformations.
  • the filler body can also be covered in a conventional manner with a perforated film, which adheres to the solidified or hardened building material when the filler body 1 is removed.
  • the reinforcement 10 is provided for a concrete ceiling.
  • This reinforcement 10 consists of a first, namely lower structural steel mat 11 and a second, namely upper structural steel mat 12, which are arranged essentially parallel to one another at a distance and are kept at a distance from one another by spacers or guide elements 13.
  • the spacers form guide elements 13 for the hoses 2, which either run through the guide elements 13 or between adjacent guide elements 13, the guide elements 13 forming different rows 14 of guide elements 13 arranged one behind the other.
  • the spacers or guide elements 13 ensure that the hoses 2 run in the desired manner and practically do not change their arrangement during the hardening or hardening of the concrete.
  • each guide element 13 is made of resilient material, in particular reinforcing steel, in such a way that they can be installed in a particularly simple manner.
  • each guide element 13 consists of two angle elements 15 and an angle element arranged or centered therebetween, which is designed as a locking element 16.
  • a different numerical ver Ratio between the angle elements 15 and the locking elements 16 can be selected.
  • the angle elements 15 and the locking element 16 essentially enclose an identical angle, which is adapted to the respective application or the respectively existing distances in the structural steel mat 11.
  • the locking element 16 is designed so that it snaps into two adjacent elements 11 a and 11 b of the structural steel mat 11.
  • the angle elements 15 and the locking element 16 are connected to one another at their tips by a strut in the form of a steel rod 17 and near their free ends by struts in the form of steel rods 18.
  • the free ends of the angle elements 15 are each provided with a protective device which, in the exemplary embodiment shown, consists of plastic parts 15a.
  • the free ends of the angle elements 15 stand on the casing 8 with the plastic parts 15a.
  • the plastic parts 15a not only prevent the free ends of the angle elements 15 from penetrating into the casing 8, which is usually made of wood, but also prevent the corrosion of the angle elements 15 at the projecting free ends.
  • the latching element 16 is provided at its free ends with a latching part 16a, which creates the latching connection between the spacer or the guide element 13 and the first structural steel mat 11.
  • the locking parts 16a are formed from hook-shaped bent free ends of the locking part 16.
  • the locking parts 16a can also be formed by angled locking parts of the locking element 16. In it, the free ends are angled so that after they snap into place on the adjacent elements 11 a and 11 b of the first structural steel mat 11, they do not run parallel to this structural steel mat 11, but rather at an angle directed towards this structural steel mat 11.
  • the spacers or guide elements 13 are pressed together, so that the free ends of the latching elements 16 with the latching parts 16a are passed between the adjacent elements 11a and 11 of the first structural steel mat 11; the plastic parts 15a of the angle elements 15 then stand on the casing 8.
  • the locking parts 16a of the locking element 16 engage under the adjacent elements 11a and 11b of the first structural steel mat 11. Due to the bending of the free ends of the locking element 16 to the locking parts 16a, these locking parts 16a are located on a level above the casing 8, so that the first structural steel mat 11 is lifted off the casing 8 after the spacers or guide elements 13 have been attached.
  • the design of the latching parts 16a ensures that the spacers or guide elements 13 remain securely connected to the first structural steel mat 11 when the reinforcement 10 is loaded on the side of the second structural steel mat 12, because the spreading of the latching elements 16 that occurs does not lead to a separation of the Locking parts 16a of the associated elements 11a and 11b of the first structural steel mat 11.
  • each of the adjacent elements 11a and 11b of the structural steel mat 11 is located between the associated latching part 16a of the latching element 16 and the associated steel rod 18, which connects the angle elements 15 and the latching element 16 near their free ends .
  • the spacers or guide elements 13 can have further steel rods 19 which connect the adjacent angle elements 15 of each spacer element 13 to one another either laterally or diagonally in the region between the tip and the free ends.
  • the second structural steel mat 12 can be connected in a conventional manner to the tips of the spacers or guide elements 13.
  • 1 a shows another arrangement of the spacers or guide elements 13, in which adjacent locking elements 16 are connected to one another via their hook-shaped bent locking parts 16 a and to common reinforcing bars 20 of a reinforcement which, for example, runs vertically in a column or the like.
  • the vibrating device 30 and its connection to the open end 31 of a single hose in the manner of the hose 2 are shown schematically in FIG. 2.
  • the vibrating device can also be connected in a corresponding manner, see FIG. 1, to the branch 5 of the common feed line 4 to the hoses 2.
  • the open end 31 is sealingly connected to a cylinder 32, in which a piston 33 is guided so that it can move back and forth.
  • the piston 33 is in drive connection with a drive motor 35 via a transmission 34.
  • the drive motor 35 can be an electric motor or an internal combustion engine, for example, and its speed is preferably continuously variable.
  • the translation 34 contains an eccentric E, via which the stroke of the piston 33 is preferably infinitely adjustable.
  • the drive motor 35 reciprocates the piston 33 in the cylinder 32 at a frequency which is given by the speed set on the drive motor 35, while the stroke of the piston 33 is set on the eccentric E. If the supply line 4 and the hoses 2 connected in parallel with a liquid, for. B. water are filled, thus caused by the movement of the piston 33 in the cylinder 32 vibrations, which act as vibrations in the concrete surrounding the hoses 2 and promote its solidification or hardening. Due to the stepless adjustment of the piston stroke and the speed of the drive motor 35, the vibrations can be easily adapted to the most favorable working conditions. By appropriate setting, the occurrence of resonance or eigen is vibrations avoided.
  • a combined pressure-frequency display device F shows the pressures and frequencies occurring during the vibrations.
  • the hoses 2 connected to the common feed line 4 are laid within the individual spacers or guide elements 13 or between the adjacent spacers or guide elements 13.
  • the branch 5 is connected with its open end to the cylinder 32 of the vibrating device 30 in a sealing manner. Subsequently, the entire system is filled with a liquid, for. B. filled with water, which is ensured by the vent valves 3 that the system is completely vented before commissioning.
  • the vibrating device 30 is actuated, the vibrating device 30 being brought up to the preset stroke frequency of the piston 33 so quickly that the critical natural vibrations are passed quickly and without harmful side effects.
  • the vibrating device 30 is switched off and the system is emptied via the filling and emptying valve 6 after the venting valves 3 have been opened. Thereafter, the hoses 2 can be easily removed from the solidified or hardened concrete and are then available for reuse. It has been found that the tubes 2 can be pulled out of the free spaces or cavities formed at any time without difficulty; in particular, the walls of the free spaces or cavities formed are uniform or smooth, so that such free spaces or cavities as through tubes not only for z. B. electrical or other supply lines, but with the addition of appropriate supplements that make the concrete waterproof, are also directly suitable as water channels. Such free spaces or cavities can be formed in the same way in concrete ceilings as concrete walls.
  • a reusable formwork system has been described in connection with the production of a concrete ceiling with free spaces or cavities.
  • a reusable formwork system can be used in the same way and with the same advantages for the production of open spaces or cavities in concrete walls and other concrete components. It can be used with the same success in connection with other building materials that solidify or harden, provided that there is no bond between the building material and the hose or hoses, which can be ensured by choosing the appropriate hose material.
  • the reusable formwork system can also be used in the prefabrication of components made of concrete or other hardening or solidifying building materials.
  • Ventilation and ventilation ducts or heating and cooling ducts can also be obtained in a very simple manner and with the saving of considerable costs for line pipes, especially when using waterproof concrete or the like, and water-conducting ducts.
  • the reusable formwork system can be used to great advantage especially in large-scale buildings or prefabricated components in which hose lines up to approx. 100 m can be used successfully.
  • FIG. 3 A modified version of a hose for filling liquid is shown in FIG. 3 in the liquid-filled state and in FIG. 4 in the empty state.
  • FIG. 4 In these figures, only one hose 41 of the type of hoses 2 is shown in FIG. 1, but all hoses 2 according to FIG. 1 can be designed in this way.
  • the hose 41 according to FIGS. 3 and 4 is sealed at one end by a stopper 42, the stopper 42 being able to be provided with a vent valve in the manner of the vent valve 3 in FIG. 2.
  • the open end of the hose 41 is directly connected to a filling and emptying valve 43 in a sealing manner.
  • the filling and emptying valve 43 can also be designed in the manner of the filling and emptying valve 6 in FIG. 1. In a first position, namely a filling position, the filling and emptying valve 43 connects the interior of the hose 41 via a first bore 44 to a source for a liquid under pressure. In the second position shown, the filling and emptying valve 43 is closed and the inside of the hose 41 is blocked off from the outside.
  • the filling and emptying valve 43 connects the inside of the hose 41 via a second bore 45 to a conventional vacuum source, e.g. B. a suction pump, which serves to empty the hose 43; see. Fig. 4.
  • a conventional vacuum source e.g. B. a suction pump, which serves to empty the hose 43; see. Fig. 4.
  • An arrangement like the one above without the vibrating device 30 can be used in connection with a building material such as flow concrete, which does not require a vibrating effect during the hardening or hardening.
  • the vibrating device 30 can also be omitted in the reusable formwork system according to FIG. 1 if flow concrete is used as the building material.
  • the branch 5 can then be connected directly to the filling and emptying valve 6.
  • the hose 41 is penetrated by a helical compression spring 46 of relatively large pitch over a substantial part of its length.
  • the presence of the helical compression spring 46 not only prevents the hose 41 from kinking or constricting under load, but also prevents the hose 41 from kinking or constricting when it is not straight, but instead, e.g. B. to be laid in arches or around corners.
  • the helical compression spring 46 expediently has an outer diameter in the range from 5% to 25%, ie. H. is a twentieth to a quarter of the inner diameter of the hose 41.
  • the tube 41 collapses after emptying and under the action of the vacuum of the vacuum source, but is supported on the windings of the helical compression spring 46.
  • the hose 41 detaches from the wall of the free space or cavity formed and is only in relatively loose contact with this wall in the area of the turns of the helical compression spring 46. In this way, the hose 41 or in the presence of helical compression springs 46 in the hoses 2 of the formwork system shown in FIG. 1, all hoses 2 can be removed practically effortlessly from the free spaces or cavities formed.
  • FIG. 5 and 6 show a side view and a top view of a further filler 50, which can be used in connection with the filler 1 according to FIG. 1 of the reusable formwork system, in order to produce branches from the free spaces or cavities obtained by means of the filler 1.
  • the further filler body 50 has a first end 51, which faces a hose 52 in the manner of the hose 2 in FIG. 1 or in the manner of the hose 41 in FIG. 3. From this end 51, a clamping device extends from two resilient, arc-shaped clamps 53, which lie opposite one another and between them define an opening 54 for receiving the hose 52. Each individual resilient bracket 53 extends beyond the central axis 55 of the hose 52 in such a way that the free ends 56 of the resilient brackets 53 have a distance which is smaller than the diameter of the hose 52 in the liquid-filled state.
  • the resilient clips 53 have the shape of an arc of a circle, but they can also take any other shape that is suitable for achieving the releasable clamping connection with the liquid-filled hose 52.
  • the further filling body 50 has a second end 57 facing away from the resilient clamps 53 with an outward, ie. H. in a region 58 widening away from the resilient clamps 53.
  • the filling body 50 is of a generally conical or frustoconical shape.
  • This area 58 is advantageously provided with a number of gradations 59, as a result of which the further filler 50 is better in the solidifying or hardening building material, e.g. B. Concrete sticks. 6, is a hollow body with an inner cavity 60.
  • This cavity 60 there is an inwardly projecting step or shoulder 61 for the attack of a suitable tool with which the further filler 50 can be pulled out of the building material after solidification or hardening, leaving behind a further free space or cavity.
  • This further free space or cavity forms a branch which starts from the free space or cavity which is formed by the associated hose 52 and extends to the surface of the component or component which has been formed from the building material.
  • FIG. 7 shows a polygonal, in particular quadrangular design of the second end 57a or the outwardly widening region 58a of a further filler 50a, which can be used instead of the further filler 50 and at its first end (not shown) corresponding to the further filler 50 is formed.
  • other fillers with other circumferential designs can be used where the circumstances require.
  • the other fillers 50 and 50a form parts of the reusable formwork system and enable the formation of smooth branches which run from the free spaces or cavities mentioned at the beginning to the surface of the component.
  • Such branches can be used to lay branches of electrical and other supply lines, but can also form branch ducts for ventilation and air extraction, for air heating or air cooling, for air conditioning and other things.
  • Such branches can also be used to guide water, namely for irrigation or drainage. Extinguishing water channels for fire extinguishing systems can also be formed in this way.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Processing Of Solid Wastes (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Floor Finish (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Refuse Collection And Transfer (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (28)

1. Système de coffrage réutilisable pour la fabrication d'espacements dans un matériau de construction durcissant, comprenant au moins un tuyau flexible (2, 41, 52) fermé à une extrémité et remplissable d'un liquide par une soupape de remplissage et de vidage (6, 43), lequel tuyau flexible passe par le matériau de construction et détermine l'espacement à former chaque fois, le tuyau flexible (2, 41, 52) étant enlevable du matériau de construction pour une réutilisation après durcissement du matériau de construction tout en laissant l'espacement correspondant, caractérisé par le fait qu'au moins un dispositif à secousse (30) est prévu, raccordé à l'extrémité ouverte (31) de ou des tuyaux flexibles (2, 41, 52) remplissables d'un liquide.
2. Système de coffrage selon la revendication 1, caractérisé par le fait que le ou les tuyaux flexibles (2, 41, 52) remplis de liquide sont passés par un ressort hélicoïdal à pression (46) sur une partie essentielle de leurs longueurs.
3. Système de coffrage selon la revendication 2, caractérisé par le fait que le ressort hélicoïdal à pression (46) a un diamètre extérieur qui représente un vingtième jusqu'à un quart du diamètre intérieur du tuyau flexible (2, 41, 52) rempli de liquide.
4. Système de coffrage selon l'une des revendications 1 à 3, caractérisé par le fait que la soupape de remplissage et de vidage (6, 43) est sélectivement raccordable à une source de souspression, et que le tuyau flexible (41) est raccordé à la source de souspression après durcissement du matériau de construction et avant l'enlèvement de celui du matériau de construction durci.
5. Système de coffrage selon l'une des revendications 1 à 4, caractérisé par le fait que le ou les tuyaux flexibles (2, 41, 52) remplissable d'un liquide sont raccordés au dispositif à secousse (30) parallèlement à la soupape de remplissage et de vidage (6, 43).
6. Système de coffrage selon la revendication 5, caractérisé par le fait que le dispositif à secousse (30) comporte un piston (33) allant et venant dans la direction longitudinale du tuyau flexible (2, 41, 52) rempli de liquide, dans un cylindre (32) raccordé de manière étanchante à un branchement (5) du tuyau flexible, et un dispositif d'entraînement pour le mouvement de va-et-vient du piston (33).
7. Système de coffrage selon la revendication 6, caractérisé par le fait que le dispositif d'entraînement présente un moteur de commande (35) et une transmission (34) par laquelle le moteur de commande (35) est en connexion de commande aved le piston (33).
8. Système de coffrage selon la revendication 7, caractérisé par le fait que la transmission (34) comprend un excentrique (E).
9. Système de coffrage selon l'une des revendications 1 à 8, caractérisé par le fait que le dispositif d'entraînement est continuellement commandable relativement à la pression déterminée par la course de piston, par réglage de la course de piston, et relativement à la fréquence du mouvement de va-et-vient du piston (33) par réglage du nombre de tours du moteur de commande (35) en adaptation aux conditions de fonctionnement respectives.
10. Système de coffrage selon l'une des revendications 1 à 9, caractérisé par le fait que le ou les tuyaux flexibles (2, 41, 52) sont pourvus, sur l'extrémité fermée, d'une soupape de ventilation (3).
11. Système de coffrage selon l'une des revendications ci-dessus, caractérisé par le fait que le ou les tuyaux flexibles (2, 41, 52) sont pourvus en un endroit quelconque de leur longueur d'une soupape de sûreté de surpression (7) répondant à une pression prédéterminée.
12. Système de coffrage selon l'une des revendications 1 à 11, caractérisé par le fait qu'au moins un autre corps de remplissage (50) est relié de manière détachable à un ou à plusieurs tuyaux flexibles (2, 41, 52).
13. Système de coffrage selon la revendication 12, caractérisé par le fait que l'autre corps de remplissage (50) comprend à une première extrémité (51) un dispositif de serrage pour la connexion détachable avec le tuyau flexible (2, 41, 52) rempli de liquide.
14. Système de coffrage selon la revendication 13, caractérisé par le fait que le dispositif de serrage est constitué d'au moins deux serre-joints élastiques (53) qui s'étendent de la première extrémité (51) du corps de remplissage (50) sur des côtés opposés au-delà d'un axe central (55) du tuyau flexible (2, 41, 52) rempli de liquide, et qui déterminent une ouverture (54) destinée à recevoir le tuyau flexible (2, 41, 52) rempli de liquide, et enfin caractérisé par le fait que les extrémités libres (56) des serre-joints (53) ont un écart entre elles plus petit que le diamètre du tuyau flexible (2, 41, 52) rempli de liquide.
15. Système de coffrage selon l'une des revendications 12 à 14, caractérisé par le fait que l'autre corps de remplissage (50) forme une deuxième extrémité (57) opposée aux serre-joints élastiques (53), et il est construit à cette deuxième extrémité (57) avec un domaine s'élargissant (58) et pourvu dans le domaine s'élargissant (58) d'un nombre de graduations (59) sur la circonférence de celui-ci.
16. Système de coffrage selon la revendication 15, caractérisé par le fait que l'autre corps de remplissage (50) forme un corps creux et est pourvu d'une graduation (61) saillant vers l'intérieur.
17. Système de coffrage selon l'une des revendications 1 à 16, caractérisé par le fait que des éléments de guidage (13) pour le tuyau flexible (2, 41, 52) rempli de liquide sont prévus dans une armure (10) comprise pour le matériau de construction.
18. Système de coffrage selon la revendication 17, caractérisé par le fait que les éléments de guidage 13 pour le tuyau flexible (2, 41, 52) rempli de liquide sont constitués d'un grand nombre d'éléments de guidage (13) disposés l'un derrière l'autre et reliables par encliquetage à un premier treillis soudé (11) de l'armure (10), et qui maintiennent le premier treillis soudé (11) et un deuxième treillis soudé (12) de l'armure (10) à écart l'un de l'autre, et par le fait que le tuyau flexible (2, 41, 52) rempli de liquide passe par la multitude d'éléments de guidage (13) disposés l'un derrière l'autre.
19. Système de coffrage selon la revendication 17, caractérisé par le fait que le tuyau flexible (2, 41, 52) rempli de liquide s'étend entre des séries (14) disposées l'une à côté de l'autre d'une multitude d'éléments de guidage (13) disposés l'un derrière l'autre et reliables par encliquetage à un premier treillis soudé (11) de l'armure (10), et qui maintiennent le premier treillis soudé (11) et un deuxième treillis soudé (12) de l'armure (10) à l'écart l'un de l'autre.
20. Système de coffrage selon l'une des revendications 12 à 19, caractérisé par le fait que chaque élément de guidage (13) est constitué de plusieurs éléments de cornière (15) et d'au moins un élément d'encliquetage (16) d'une matière élastique, qui, à la pointe et proche de leurs extrémités libres, sont reliés l'un à l'autre, et par le fait que le ou les éléments d'encliquetage (16) de chaque élément de guidage (13) présente à chaque extrémité libre une partie d'encliquetage (16a) pour la connexion par encliquetage avec le premier treillis soudé (11).
21. Système de coffrage selon la revendication 20, caractérisé par le fait que les parties d'encliquetage (16a) sont formées par des extrémités libres coudées d'au moins un élément d'encliquetage (16).
22. Système de coffrage selon la revendication 21, caractérisé par le fait que chaque partie d'encliquetage (16a) forme une partie d'encliquetage coudée en crochet.
23. Système de coffrage selon la revendication 21, caractérisé par le fait que chaque partie d'encliquetage (16a) forme une partie d'encliquetage coudée qui, en état assemblé, s'étend sous un angle dirigé vers le premier treillis soudés (11).
24. Système de coffrage selon l'une des revendications 20 à 23, caractérisé par le fait que les parties d'encliquetage (16a) du ou des éléments d'encliquetage (16) sont encliquetées dans des éléments adjacents (11 a, 11b) du premier treillis soudé (11), et que les éléments (11 a, 11b) sont disposés entre la partie d'encliquetage (16a) associée et une jambe de force associée (18) reliant les éléments de cornière (15) à un ou à plusieurs éléments d'encliquetage (16) près de leurs extrémités libres.
25. Système de coffrage selon l'une des revendications 21 à 24, caractérisé par le fait que les éléments de cornière (15) de chaque élément de guidage (13) s'étendent au-delà des extrémités libres du ou des éléments d'encliquetage (16), et par le fait qu'ils sont munis d'un dispositif de protection à chaque extrémité libre.
26. Système de coffrage selon l'une des revendications 17 à 25, caractérisé par le fait que les éléments de cornière (15) et le ou les éléments de cornière (16) de chaque élément de guidage (13) sont reliés les uns aux autres dans le domaine situé entre les pointes et les extrémités libres.
27. Système de coffrage selon l'une des revendications 1 à 26, caractérisé par le fait que le ou les tuyaux flexibles (2, 41, 52) remplissables d'un liquide sont constitués d'une série de tuyaux flexibles (2) raccordés parallèlement à une conduite d'alimentation commune (4), et par le fait que le dispositif à secousse (30) est raccordé à la conduite d'alimentation commune (4).
28. Système de coffrage selon l'une des revendications ci-dessus, caractérisé par le fait que le ou les tuyaux flexibles (2, 41, 52) remplissables d'un liquide sont couverts d'une feuille perforée.
EP86902361A 1985-03-09 1986-03-07 Systeme de coffrage reutilisable pour la realisation d'espaces libres dans des materiaux de construction Expired EP0248813B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86902361T ATE43878T1 (de) 1985-03-09 1986-03-07 Wiederverwendbares schalungssystem zur herstellung von freiraeumen in baustoffen.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE3508444 1985-03-09
DE19853508444 DE3508444A1 (de) 1985-03-09 1985-03-09 Vorrichtung zum herstellen von freiraeumen fuer installationen
DE8506996U DE8506996U1 (de) 1985-03-11 1985-03-11 Bauteil - Abstandhalter mit Einrastvorrichtung im Armierungsbau (aus Stahl)
DEU0850699 1985-03-11
DE19853509873 DE3509873A1 (de) 1985-03-19 1985-03-19 Schalungsvorrichtung zum herstellen von oeffnungen
DE3509873 1985-03-19
DE19853509994 DE3509994A1 (de) 1985-03-20 1985-03-20 Ruetteltechnik mit fluessigkeitsfrequenzgeber
DE3509994 1985-03-20

Publications (2)

Publication Number Publication Date
EP0248813A1 EP0248813A1 (fr) 1987-12-16
EP0248813B1 true EP0248813B1 (fr) 1989-06-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86902361A Expired EP0248813B1 (fr) 1985-03-09 1986-03-07 Systeme de coffrage reutilisable pour la realisation d'espaces libres dans des materiaux de construction

Country Status (9)

Country Link
EP (1) EP0248813B1 (fr)
AT (1) ATE43878T1 (fr)
AU (1) AU590266B2 (fr)
DE (1) DE3663831D1 (fr)
DK (1) DK532386D0 (fr)
ES (1) ES8800391A1 (fr)
FI (1) FI873870A (fr)
NO (1) NO864466D0 (fr)
WO (1) WO1986005229A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4223844A1 (de) * 1992-07-20 1994-01-27 Rene P Schmid Vorrichtung und Verfahren zum Einpressen von Injektionsgut in Betonierfugensysteme
FI4705U1 (fi) * 2000-06-15 2000-11-23 Juhani Kauko Lämpöeristeen asennustuki
FI20022292A0 (fi) * 2002-12-31 2002-12-31 Joutsenon Elementti Oy Asennusväline
DE102019123880A1 (de) * 2019-09-05 2021-03-11 Peri Gmbh Textiles Schalungselement
CN116677205B (zh) * 2023-03-13 2024-01-23 扬州中建建设机械有限公司 一种用于建筑施工的混凝土浇筑装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR805636A (fr) * 1935-08-14 1936-11-25 T U J O Sa Procédé pour la construction de planchers et planchers en résultant
FR1062968A (fr) * 1952-09-02 1954-04-28 Perfectionnements aux procédés de réalisation des canalisations monolithes et canalisations obtenues par ce procédé
FR1141502A (fr) * 1955-12-09 1957-09-03 Procédé destiné à alléger des matériaux de grandes dimensions par l'emploi de <<poches à faire des creux>> à démoulages progressifs; l'utilisation des <<creux>>à des fins utilitaires; les fabrications et exploitations des produits obtenus
GB963253A (en) * 1960-04-29 1964-07-08 Cufflin Holdings Ltd Improvements in inflatable tubular formers
CH426981A (it) * 1965-01-25 1966-12-31 Bassani Spa Attrezzatura per la formazione, a mezzo di organi cavi e tubi che rimangono presi nel getto, di incassi per installazioni elettrichi in elementi prefabbricati per costruzioni edili
US3898778A (en) * 1974-01-10 1975-08-12 Lennart G Erickson Slotted drainage conduit and integral concrete floor
DE3240166A1 (de) * 1982-10-29 1984-05-03 Andreas 4441 Spelle Holterhus Vorrichtung zum herstellen von freiraeumen fuer installationen

Also Published As

Publication number Publication date
ES552807A0 (es) 1987-11-01
NO864466L (no) 1986-11-07
DK532386A (da) 1986-11-07
AU5664086A (en) 1986-09-24
FI873870A0 (fi) 1987-09-08
WO1986005229A1 (fr) 1986-09-12
DK532386D0 (da) 1986-11-07
EP0248813A1 (fr) 1987-12-16
DE3663831D1 (en) 1989-07-13
AU590266B2 (en) 1989-11-02
NO864466D0 (no) 1986-11-07
FI873870A (fi) 1987-09-08
ES8800391A1 (es) 1987-11-01
ATE43878T1 (de) 1989-06-15

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