EP2158368A2 - Dispositifs de coffrage et procédé de fabrication de structures monolithiques en béton coulé - Google Patents

Dispositifs de coffrage et procédé de fabrication de structures monolithiques en béton coulé

Info

Publication number
EP2158368A2
EP2158368A2 EP08758073A EP08758073A EP2158368A2 EP 2158368 A2 EP2158368 A2 EP 2158368A2 EP 08758073 A EP08758073 A EP 08758073A EP 08758073 A EP08758073 A EP 08758073A EP 2158368 A2 EP2158368 A2 EP 2158368A2
Authority
EP
European Patent Office
Prior art keywords
formwork
boards
shuttering
concrete
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08758073A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Schuchardt
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP2158368A2 publication Critical patent/EP2158368A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02—Containers for fluids or gases; Supports therefor
    • E04H7/18—Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
    • 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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits
    • 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
    • B28B7/303—Cores; Mandrels adjustable, collapsible, or expanding specially for making undercut recesses or continuous cavities the inner section of which is superior to the section of either of the mouths

Definitions

  • the invention relates to formwork devices for producing monolithic concrete castings and a method for producing monolithic concrete castings.
  • a container made of concrete which serves in particular as an underground tank for fuel oil, known.
  • a ground tank consists of at least two interconnected curved concrete shell parts and a corresponding number of internal walls made of plastic.
  • the wall of the plastic shell is extended and connected to the other concrete shell part tensile strength.
  • the adjacent concrete shell parts can be bonded together by gluing.
  • Such underground tanks can be built only with a high level of technical use in easily accessible places.
  • the tension-resistant connection of the concrete shell parts alone does not guarantee a tight connection, which is why the bonding takes place.
  • splices are always subject to an aging process, so that it can not be ruled out that such underground tanks are leaking over the years and fuel oil can escape into the surrounding soil, which is a significant environmental pollution.
  • DE 32 02 336 C3 describes the industrial production of a monolithic concrete casting in the form of a prefabricated garage open to one side.
  • a track for roller pallets is laid with an inclination angle of about 20 °. It leads up to an erected on the inclined plane scaffolding, which carries a rigid inner formwork, the inner formwork can also have movable formwork parts.
  • Short-stroke cylinders are connected to a frame, which closes the outside of the inner formwork and of an outer formwork limited form space on its front side.
  • the outer formwork for the garage floor forms the rolling pallet.
  • Each additional panel corresponds to the size of a garage wall, only the slab formwork is made in two parts.
  • the formwork panels are mounted in steel frameworks and form a five-sided closed space body. All moldings and walls are inclined, none of these parts are horizontal.
  • a pour-in pumping system liquid reinforced concrete is dropped into the mold, which fills from the top and is provided on the riser to prevent inclusions of air and / or water.
  • the slab formwork is swiveled upwards via a lever mechanism and brought into the descaling position. Then the two outer panels are driven off. By pressing the cylinder, the winch is lowered and the inner formwork is stripped off. Thereafter, the rolling pallet is moved over a swivel stage in the horizontal.
  • Such a complex design for a shuttering device is only suitable for the industrial production of concrete constructions. It is not suitable for the production of monolithic concrete castings at its place of use.
  • the invention has for its object to provide cost-effective formwork devices for producing monolithic concrete castings, which make it possible to manufacture concrete castings directly at their place of use in hard to reach places and ready-built land made of concrete in one operation on the ground, without previously a foundation has to be built.
  • This object is achieved by the features listed in claim 1.
  • the formwork apparatus is formed from a multiplicity of formwork boards or formwork panels, wherein outside formwork boards are connected to one another in such a way that they form a closed geometrically defined outside formwork that is fixedly secured in the ground or on a prepared ground and interior formwork boards are connected to one another in this way. that they form a closed geometrically defined inner wall, which is spaced from the outer formwork by the wall thickness of a monolithic concrete casting to be produced.
  • the bottom end portions of the inner formwork boards are connected by a shuttering board floor, wherein the inner wall forms the inner formwork with the formwork board floor.
  • the inner formwork boards are designed to be at least the wall thickness of the bottom of the monolithic concrete casting to be cast shorter than the outer formwork boards.
  • the inner formwork is attached to the outer formwork hanging directly or indirectly freely.
  • At least one transverse bar is screwed, for example, above the floor-distal end portions of the outer formwork boards, and the inner formwork is attached to this crossbar hanging freely.
  • the free-hanging inner formwork ensures that no spacers are required between the outer and inner formwork in order to keep the outer formwork of the inner formwork within a defined distance, which corresponds to the wall thickness of the finished concrete casting. If at least two opposite sides simultaneously filled concrete from above into the formwork device, this flows smoothly between the formwork boards in the direction of soil and is evenly distributed there.
  • the soil should first be solidified by means of a vibrator and covered with a plastic film, so that the water can not flow out of the concrete too quickly and solidification occurs only when all voids between the inner and outer formwork are filled with concrete.
  • Concrete castings produced with the formwork device according to the invention can be, for example, water reservoirs for agriculture in the form of cisterns or endless cisterns. Large tanks of 50,000 liters or 100,000 liters capacity can be manufactured cheaper up to one-third of the usual market production costs. Also, a cuboid design allows better space utilization than a known from the prior art spherical cistern. With the formwork device according to the invention further underground tanks for storage of liquids or solids, such as fuel oil tanks or pellet underground tanks can be built. But also aboveground buildings can be produced without having to cast a foundation beforehand, for example L walls. Very well feasible is the construction of L-walls on a hillside.
  • Fig. 1 is a schematic representation of a section through a cistern with a shuttering device according to the invention from a front view in a first embodiment.
  • FIG. 2 is a plan view of FIG. 1.
  • Fig. 3 is a schematic representation of a section through a pellet underground tank with a shuttering device according to the invention from a front view in a second embodiment
  • FIG. 4 shows a plan view of FIG. 3 after removal of the crossbar 14
  • Fig. 5 is a schematic representation of a section through a pellet underground tank with a shuttering device according to the invention from a front view in a third embodiment
  • FIG. 6 is a plan view of Fig. 5th
  • Fig. 7 is a plan view of the shuttering device according to the invention in a fourth embodiment
  • Fig. 8 is a schematic representation of a section through an L-wall with a shuttering device according to the invention from a side view.
  • Fig. 9 is a schematic representation of an L wall in a slope.
  • Fig. 10 is a schematic representation of a section through a cistern with a shuttering device according to the invention from a front view in a further embodiment.
  • the formwork apparatus 1 according to the invention according to FIG. 1 is used to produce a cistern 19.
  • a plurality of formwork boards 3 are detachably connected to each other in a known manner, for example by metal bolts or screw connections.
  • a variety of outer formwork boards 4 forms the outer formwork 5, which is fixed secured in the soil 6 secured.
  • the soil 6 should have a certain strength, so that it can not lower in an inadmissible manner after completion of the concrete casting 2. Otherwise, the soil is to be solidified in a known manner with a vibrator before starting the formwork.
  • the securing of the outer formwork 5 in the soil 6 is carried out by ground anchor 17th
  • Shuttering boards 3 have basically smooth surfaces on their insides in the direction of the concrete wall. At the back there are struts, which allow a connection of the shuttering boards 3 with each other.
  • cisterns 19 are built underground. It is excavated an earth hole that is at least 1 meter wider than the outer cross section of the outer formwork 5, so that a fitter can mount the outer formwork boards 4 easily and dismantle after completion of the concrete casting 2 again.
  • the outer formwork 5 of the cistern 19 according to the invention has in a first
  • Embodiment of FIG. 2 on a square in plan view shape can also be made rectangular or circular or have the shape of a polygon.
  • the outer formwork 5 and the inner wall 8 of the inner formwork 12 are made in two parts.
  • the inner wall 8 is formed by longer, rectangular inner shuttering boards 7 and shorter, upwardly tapering trapezoidal inner shuttering boards T, the angle 23 between the inner shuttering boards 7, T being between 110 ° and 130 °, preferably 120 °.
  • the outer formwork 5 is likewise designed in two parts and is formed by longer, rectangular outer formwork boards 4 and shorter, trapezoidal outer formwork boards 4 ', wherein the bend 23 between the outer formwork boards 4, 4' is likewise preferably 120 °.
  • At least one transverse bar 14 is laid over two opposite outer formwork walls and screwed to the outer formwork 5.
  • the bottom distal end portions 22 of the inner formwork 12 form cross members 15, where the inner formwork 12 is raised via a lifting device and secured by preferably screws 27 or clamps or the like to the crossbar 14 ,
  • the cross member 15 of the inner formwork 12 and the crossbar 14 are arranged directly above one another and spaced from each other by the wall thickness 9.
  • Two cross member 15 of the mecanical 12 are each connected to a crossbar 14 by screws 27 or clamps or the like.
  • On the outer formwork 5 can be screwed further crossbar 28 on which, for example, concrete filling devices (not shown) are arranged.
  • the filling of the formwork device 1 with concrete is preferably carried out simultaneously from two sides.
  • an underground tank 18 is shown, in particular for the storage of pellets with a shuttering device 1 according to the invention.
  • the shuttering board floor 11 is here not rectangular and one piece but obtuse and attached in two parts to the inner wall 8.
  • the shuttering board floor 11 is formed by shorter bottom formwork boards 11 ', which are butted together at an obtuse angle. In this way, the required for a good air circulation pellet tank shape.
  • plastic pipes 24 are attached to defined locations that remain free of concrete and remain after completion of the concrete casting in concrete casting 2 and, for example, the ventilation and / or air circulation within the earth tank 18 are used.
  • To the shorter inner formwork boards T more short inner formwork boards 7 "are added, which form the opening 21 of the concrete casting 2 and meet when lifting the fully assembled inner formwork 12 perpendicular to the crossbar 14 and bolted to it.
  • End portions 13 of the outer formwork 5 ends directly above each other, as in a third. Embodiment shown in Figures 5 and 6.
  • the shorter outer formwork boards 4 ' are made so long that they directly touch the short inner formwork boards 7 ".
  • the inner formwork 12 is fastened directly to the outer formwork 5 in a freely suspended manner and screwed with screws 27
  • FIG. 7 is a plan view of a cistern 19 made of concrete with a rectangular plan and a direct attachment of the outer formwork 5 to two cross members 15 of the inner formwork 12.
  • outer formwork 5 and inner formwork 12 in a different geometric shape.
  • a plurality of cisterns 19 can be cast with a formwork device 1 according to the invention made of concrete, which are separated from each other, for example, only over a 1 meter high wall, so-called endless cisterns. In this way, for example, large drinking water reservoirs can be created in rain-poor areas in a quick and uncomplicated way.
  • FIG. 10 another embodiment of a cistern is shown.
  • the outer formwork 5 is secured here by three ring anchors 31, which are placed around the outer formwork against lateral stretching of the outer formwork 5.
  • the ring anchors 31 are arranged in the middle region and in the upper and lower end of the arranged perpendicular to the ground 6 outer formwork boards 4 and firmly clamped.
  • 12 with concrete serve in addition to the Erdankem 17 posts 32, z.
  • An advantage of securing the outer formwork 5 by means of ring anchors 31 is that the opening 21 of the cistern 19 has a defined outer opening which does not change during or after filling with concrete.
  • An additional screwing the crossbeam on the outer formwork 5 can be omitted.
  • formwork panels eg Betoplan panels, which are smooth on their inner side and rough on the outer side, can be used as outer formwork boards 4, 4 'and inner formwork boards 7, 7', 7 " Metal struts bolted together in a conventional manner, and the side edges may be reinforced by metal plates and / or metal corners. It is within the scope of the invention that further support fuses for the outer formwork 5 are arranged in the outer region and / or for the inner formwork 12 in the inner region of the formwork apparatus 1. A support of the inner formwork boards 7 by an additional transverse and / or diagonal support against a widening of the inner formwork 12 may be required with increasing size of the concrete casting to be produced.
  • the outer formwork boards 4 are releasably connected to each other and form a straight, vertical wall as outer formwork 5, which is secured with ground anchors.
  • the outer formwork 5 can be secured in the lateral, excavated earth 6 'by supports 32 made of metal, wood or another stable material, s. also Fig. 10.
  • the shorter inner formwork boards 7 form a parallel to the outer formwork boards 4 by the wall thickness 9 of the vertical wall of the L wall 20 spaced inner wall 8.
  • the shuttering board floor 11 is divided into two parts in this embodiment, it is formed by different length Bodenschalungsbrettern 11 ' ,
  • In the bottom end portion 13 is at right angles to the outer formwork 5, this across, arranged at least one crossbar 14 and bolted to the outer formwork 5.
  • the pre-assembled inner formwork 12 is now lifted by means of a lifting tool to the wall thickness 9 'of the bottom 16 of the L wall 20 until the bottom end portions 22 of the inner formwork boards 7 touch the crossbar 14.
  • the inner formwork 12 is bolted to the crossbar 14 firmly.
  • the crossbar 14 can also be mounted first on the inner formwork 12 and then on the raised end portion 13 of the outer formwork boards 4 lifted and bolted there.
  • the formwork device 1 is filled with concrete. It is advantageous if the floor-distal end portion of the inner formwork has an outwardly facing slope of about 2 °. The sloping upper edge ensures a slightly conical reinforcement of the L wall in its lower area and gives it more stability in terms of static.
  • L walls 20 can be erected on a slope, as shown in Fig. 9.
  • angle rails 30 are mounted as a termination with continuous mounting option according to the respective inclination or pitch angles of the terrain.
  • the outer formwork 5 and the inner formworks 12 pre-cast concrete 2 pre-assemble or integrally form and only set up on site or use in the excavated soil with a crane and only to secure the inner formwork 12 to the outer formwork 5 hanging freely.

Abstract

L'invention concerne un dispositif de coffrage (1) et un procédé de fabrication de structures monolithiques (2) en béton coulé sur place, ces structures étant composées d'une pluralité de planches de coffrage (3). Selon ce procédé a) des planches de coffrage externe (4) sont reliées entre elles de manière à former un coffrage externe (5) fermé, de forme géométrique déterminée, qui est solidement fixé dans la terre (6) ou sur un sol préparé à cet effet, b) des planches de coffrage interne (7) sont reliées entre elles de manière à former une paroi interne (8) fermée, de forme géométrique déterminée, qui se trouve à une distance du coffrage externe définie par l'épaisseur de paroi (9) de la structure monolithique (2) en béton coulé à fabriquer, c) les sections terminales (10) des planches de coffrage interne (7) situées côté sol sont reliées entre elles par un fond en planches de coffrage (11) et la paroi interne (8) forme avec le fond en planches de coffrage (11) le coffrage interne (12), d) les planches de coffrage interne (7) sont plus courtes d'une longueur au moins égale à l'épaisseur de paroi (9') du fond (16) de la structure monolithique (2) en béton coulé, relativement aux planches de coffrage externe (4), e) le coffrage interne (12) est fixé en suspension libre directement ou indirectement au coffrage externe (5), la fixation indirecte pouvant être réalisée au moyen de poutres transversales (14). La structure monolithique (2) en béton coulé réalisée au moyen du dispositif de coffrage (1) peut être un réservoir enterré (12), une citerne (19), un mur en L (20) ou tout autre structure en béton. La structure en béton coulé est achevée sur place, soit dans une excavation (6) soit sur le sol (6).
EP08758073A 2007-05-20 2008-05-20 Dispositifs de coffrage et procédé de fabrication de structures monolithiques en béton coulé Withdrawn EP2158368A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007007262U DE202007007262U1 (de) 2007-05-20 2007-05-20 Schalungsvorrichtungen zur Herstellung monolithischer Betongussbauten
PCT/DE2008/000830 WO2008141620A2 (fr) 2007-05-20 2008-05-20 Dispositifs de coffrage et procédé de fabrication de structures monolithiques en béton coulé

Publications (1)

Publication Number Publication Date
EP2158368A2 true EP2158368A2 (fr) 2010-03-03

Family

ID=39809907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08758073A Withdrawn EP2158368A2 (fr) 2007-05-20 2008-05-20 Dispositifs de coffrage et procédé de fabrication de structures monolithiques en béton coulé

Country Status (3)

Country Link
EP (1) EP2158368A2 (fr)
DE (2) DE202007007262U1 (fr)
WO (1) WO2008141620A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105507645B (zh) * 2015-11-18 2020-01-14 张振明 用半球形钢模制作钢筋混凝土大薄壳球型制品的方法
CN108943539A (zh) * 2018-08-03 2018-12-07 北京交通大学 一种制作复杂断面隧道衬砌模型的有机玻璃模具
GB2566607B (en) 2018-08-13 2019-10-02 Dutypoint Ltd Prefabricated former for constructing underground chamber

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US1219272A (en) * 1908-08-13 1917-03-13 Thomas A Edison Process of constructing concrete buildings.
FR1460880A (fr) * 1965-10-21 1966-01-07 Procedes Paulve Soc D Expl Des Bâtiment cellulaire monobloc ou analogue, son procédé de construction et ses diverses applications
DE2159960C3 (de) 1971-12-03 1974-06-12 Allgemeine Strassenbaubedarfs-Gesellschaft Mbh, 2820 Bremen Behälter aus Beton, insbesondere Erdtank für Heizöl
DE3202336A1 (de) 1982-01-26 1983-07-28 Kesting, Lorenz, 4600 Dortmund Verfahren und vorrichtung zum fertigen von raumzellen aus erstarrendem baustoff
BG44644A1 (fr) * 1986-01-10 1989-01-16 Pet R Kh Shivarov
FR2727714B1 (fr) * 1994-12-01 1997-11-14 Jacob Jean Pierre Dispositif pour couler un bassin en beton arme
DE10260978A1 (de) 2002-12-21 2004-07-22 Wilhelm Schmitz Einschalung
US7731149B2 (en) 2004-08-20 2010-06-08 Del Zotto Products, Inc. Septic tank form
US8048346B2 (en) * 2006-03-24 2011-11-01 Murphy Mark W Septic tank fabrication system

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
DE112008001964A5 (de) 2010-04-22
WO2008141620A3 (fr) 2009-07-23
DE202007007262U1 (de) 2008-10-02
WO2008141620A2 (fr) 2008-11-27

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