EP1134327A1 - Hohlkörperschalungselement zum Herstellen von Wänden und Böden und Verfahren zum Herstellen und Verwenden dieses Elementes - Google Patents

Hohlkörperschalungselement zum Herstellen von Wänden und Böden und Verfahren zum Herstellen und Verwenden dieses Elementes Download PDF

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Publication number
EP1134327A1
EP1134327A1 EP01430007A EP01430007A EP1134327A1 EP 1134327 A1 EP1134327 A1 EP 1134327A1 EP 01430007 A EP01430007 A EP 01430007A EP 01430007 A EP01430007 A EP 01430007A EP 1134327 A1 EP1134327 A1 EP 1134327A1
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EP
European Patent Office
Prior art keywords
shells
lost
concrete
wall
formwork
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Withdrawn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
EP01430007A
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English (en)
French (fr)
Inventor
Guy Sarremejeanne
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Individual
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Individual
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Publication date
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Publication of EP1134327A1 publication Critical patent/EP1134327A1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • E04B1/161—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with vertical and horizontal slabs, both being partially cast in situ
    • 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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • 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
    • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • B28B7/186—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article for plates, panels or similar sheet- or disc-shaped objects, also flat oblong moulded articles with lateral openings, e.g. panels with openings for doors or windows, grated girders
    • 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
    • B28B7/306—Cores; Mandrels adjustable, collapsible, or expanding pliable or extensible
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8623—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic
    • E04B2/8629—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic with both form leaves and spacers being monolithic

Definitions

  • the other major difficulty lies in the manufacturing but especially in the dimensioning of such panels, in particular at interior interfaces spacer / formwork skin where the breakout forces are proportional to the thrust of the concrete on the wall, which can reach, for pouring heights of 4 meters, values of the order of 10 tonnes per square meter.
  • This aspect becomes penalizing if we add the incorporation of the openings such as windows and doors to have lintel and frame reinforcements legs, then finally unacceptable if we take into consideration the positioning of structural reinforcements such as posts or stiffeners to reconstitute a mesh.
  • Patent WO 97/04195 partially solved the problem but the method does not not allow to place a welded mesh in the thickness of the wall.
  • the technique proposed by the present invention not only makes it possible to jointly solve the above problems but also that of casting, in one single phase, walls and floors.
  • the present invention can be preferably used for walls vertical, but also horizontal for floors.
  • the major advantage in the case of floors, is to be able to circulate on the horizontal surface partly running at the time of casting and this before hardening of concrete.
  • Another advantage is to be able to offer ready-made undersides of floors to paint without risk of seeing shrinkage crack appear as is the case with predalle junctions, for example.
  • the overall reduction in implementation times is here optimized, compared to conventional formwork techniques, by the disappearance of the most intermediate tasks such as: storage of formwork at the headquarters of the company, dismantling for transport and assembly of the formwork on site, on-site storage, transport and handling of concrete ballasts for the sheet bracing, transport and storage of equipment such as scrap and mannequins on site, transportation of this equipment to the work, installation of these equipment fixed vertically on the formwork, coupling and decoupling of the formwork according to the capacities of the crane, tightening of the formwork by threaded rods, reading of plans, pervibration of the concrete, formwork removal and cleaning of the equipment, return transport.
  • the device adapts itself to the construction by custom manufacturing, it is therefore not necessary to carry out calculations appropriate on site to guide this adaptation.
  • the object of the invention is characterized in that it consists of a monobloc set in hollow and waterproof concrete, ready to install, representative of a part wall equipped with its openings, reservations and other internal organs necessary to its realization.
  • Figure 1 is a schematic view of the shells forming the molds of alveoli before pouring concrete intended to form the lost alveolar formwork.
  • Figure 2 is a schematic view of the constitution of the shells formed elements capable of folding back for removal from the built-up wall.
  • Figure 3 is a schematic view of the means allowing the withdrawal of elements constituting the shell.
  • Figure 4 is a schematic view of one of the shims introduced between each shell to form, at each of said shims, channels for transferring the concrete between each cell.
  • Figure 5 is a schematic view of a cast panel showing the communication of the different cells between them.
  • Figure 6 is a schematic vertical sectional view of a wall as well constituted showing the passages between each cell reserved by each of said wedges.
  • Figure 7 is the same schematic view in vertical section made at the level when booking an opening.
  • Figure 8 is a schematic view in vertical section of a set of shells shown before pouring the concrete to form the lost honeycomb formwork.
  • Figure 9 is a schematic view, in partial vertical section, of said alveolar formwork lost, after removal of the shells.
  • Figure 10 is a schematic vertical sectional view of a wall at the level concrete transfer openings between cells.
  • Figure it is a schematic view of a set of broken shells in view of the reservation required for the installation of a frame (door or window).
  • Figure 12 is a schematic perspective view of an ornate facade of elements of modenature and open of a window decorated with the same.
  • FIG. 13 is a schematic view, in partial vertical section, of a floor section.
  • the alveolar lost formwork, object of the invention, intended for the construction on site of the corresponding portion of wall is manufactured in the factory on a horizontal surface 1 provided with edges orthogonally erected over a height equal to what the thickness of said lost formwork should be.
  • Dimensions between banks of said plate 1 thus formed are respectively equal to the dimensions which will be those, in height and in length, of the portion of the wall to which said formwork is intended.
  • Half-shells 2a which have the desired shape and dimensions for form with their symmetrical 2b the mold of the cells 3, are arranged on said plate 1, their length going from edge to edge, and are supported by the spacers 4 of a height equal to the thickness which must be given to the concrete which will coat the said shells to form said lost formwork, object of the invention.
  • Said half-shells 2a are held apart from one another by the half-shims 11a (fig. 4).
  • a welded mesh 9, with an area equal to that of the plate 1, is placed on the set of half-shells 2a, each lip of which has been previously styled, on its entire length, by a flexible elastomeric seal 10 which may have lamellae thin longitudinal which allow its best nesting on the adjacent joint of the same type which embeds each of the lips of the complementary half-shells.
  • Self-leveling concrete is then poured, up to the edge of the plateau 1, on all of said shells thus formed and kept apart from one another by the wedges 11 over a width equal to the thickness of the wall which must separate two cells 3 adjoining, drowning them by inserting them to form the lost honeycomb formwork, whose cells 3 are formed by the emptiness of the shells 2 ( Figure 9) and whose outer walls 16 of these same cells 3 constitute the apparent walls of the wall or the floor thus constructed.
  • Said shells 2 conforming to the internal shape of the cells 3 and made of non-adherent material or made non-adherent to concrete, which allowed the manufacture alveolar formwork in the factory, can then be held in place, then forming themselves a primary formwork lost during filling, on site, of alveoli 3, for the final construction of the wall or floor to be constructed.
  • each half-shell 2a or 2b is itself formed of two elements 5a and 5b, symmetrical with respect to the vertical plane median and joined together by a bolt 6 sliding longitudinally on tails dovetails 7a and 7b juxtaposed on either side of their contact line, on the face interior of each of said elements.
  • the elements 5a (fig. 3) partially forming the shell 2, are then found released from the poured concrete which, having enveloped them, formed the wall of the cell 3, and can be extracted, by longitudinal translation, from the concrete formwork thus produced, and in which the welded mesh 9 crosses each empty cell 3, to form the frame of the concrete which will be poured, on site, in said cells, for the construction of the wall final.
  • the shells 2, which allow the manufacture, in the factory, of the concrete formwork which comprises the cells 3, are regularly maintained between them on the plate 1 by intermediate wedges 11 (fig. 4), formed of two elements 11a and 11b symmetrical to each other with respect to the same horizontal plane as the plane of symmetry of the half-shells 2 a and 2 b , distributed along the space left between each shell 2, and in the plane of the trellis 9 and joined one to the other 'other by the pins 12 ensuring their positioning and their maintenance.
  • the horizontal base of the lower element 11a is located in the lower plane of the half-shells 2a and the upper plane of the element 11b is located in the external plane of the upper elements 2b of said shells.
  • Said wedges 11, assembled have two vertical sides 13, parallel between them, the width of which corresponds to the spacing of the shells 2 between which said shims are placed, and orthogonal to the side walls of the shells 2 that they separate, and marry, themselves, laterally, the curve necessary to be in close contact over their entire periphery with the wall of said shells 2.
  • the spacing of the sides 13 between them is equal to the width of the reservation a transfer channel 14, which each of the wedges 11 creates during the pouring of the concrete onto the shells 2.
  • the wedges thus formed and interposed between each of the shells assembled not only keep them uniformly apart, but also, when pouring concrete onto said shells 2 placed in the workshop in the necessary number on the tray 1, prevent the concrete flowing in the intermediate space between each shell to form the empty cells 3, does not enter the space limited by the wedges 11.
  • the alveolar formwork thus formed will therefore comprise, at the level of each of the wedges 11 empty reserves of material which, after extraction of the shells 2, as was said, will ensure, between said cells 3, the reservation of communications 14 such as marked with arrows in Figure 5, to ensure uniform distribution of concrete poured, on site, in all of the cells 3 ( Figure 5) for the construction of the final wall in which the cells 3 constitute the lost formwork.
  • FIGS. 6 and 7 show respectively, in vertical section transverse, a wall at the level of any wall (figure 6), and at the level of a opening whose lintel 15 can be seen (Figure 7).
  • the lost formwork manufacturing process object of the invention also allows the reservation of openings for the incorporation of doors or windows.
  • the shells 2 are broken and closed at level 19 of a lintel 17 fitted with traditional reinforcement and cooperating with jambs 18.
  • the lost formwork which will thus be manufactured will therefore contain, from the factory, the voids intended to receive the corresponding doorframes.
  • any decorative element such as cornices 20, which can finally be installed over all or part of the length of the facade walls or lintels, is obtained by the presence of studs 21 which are integral of said facing 20 and located at the rear of its view face and which are introduced, before the pouring of the concrete forming the wall of the cells 3, in the interval of two cells in which said studs penetrate until reaching the plate 1 which thus supports provisionally said facing, keeping it below the surface of the outer wall 16 formed by the subsequently poured concrete, in order to ensure that level the seal at the rear of said facing (fig. 12) which is thus embedded in the exterior wall of the building.
  • studs 21 which are integral of said facing 20 and located at the rear of its view face and which are introduced, before the pouring of the concrete forming the wall of the cells 3, in the interval of two cells in which said studs penetrate until reaching the plate 1 which thus supports provisionally said facing, keeping it below the surface of the outer wall 16 formed by the subsequently poured concrete, in order to ensure that level the seal at the rear of said facing
  • said studs When pouring the concrete to constitute the lost formwork, said studs, preferably made of a twisted iron, will be trapped in its mass, ensuring the fixing of the facing on said lost formwork.
  • the welded mesh 9 is moved to be placed, no longer in the junction plane 10 of the half-shells, but interposed between the shells 2 and the plate 1 on which they rest via spacers 4 and the half-shells 2a immediately and directly receive the half-shells 2 b .
  • Similar spacers 22, of suitable height support the trellis 9 which is thus placed in the zone of the greatest effort where it plays the role of resistant reinforcement in the definitive structural element.
  • vents 23, of a height at least equal to the thickness of concrete in front constitute the wall 16 of the cell 3 of said lost formwork, are installed regularly distributed on the upper surface of the shells 2, so as to avoid the formation of air pockets when pouring concrete which, on site, for final construction of the floor, must fill said cells 3 in a horizontal position.
  • each element of the device being constituted as above described, the shell portions 5a and 5b, assembled using of the bolt 6 sliding longitudinally on the dovetails 7, together form a half-shell 2a which is placed on the horizontal plate 1 from which it is held separated by the spacers 4, by a height equal to the thickness that the wall 16 of the alveoli 3.
  • An elastomeric seal 10 is placed on the lips of said half-shell.
  • Each half-shell 2a thus put in place is capped by a half-shell 2b constituted in the same way.
  • each wedge 11a is completed by a wedge 11b symmetrical of the previous one with respect to the plane of the trellis 9.
  • Self-leveling concrete of appropriate formulation and consistency is then sunk on all the shells 2 thus organized, penetrating between them and spreading on the tray 1, and is leveled on its upper surface at the level of the plinth edge of said plate 1, thus forming the empty cells 3 of the lost formwork.
  • the shells 2, which formed the mold of the lost formwork are extracted by longitudinal translation, the wedges 11 remaining trapped in concrete in the intervals between each shell 2.
  • the alveolar wall thus formed, and manufactured in the factory, forms, after setting concrete, alveolar formwork which has a low density precisely as a result of the presence of its empty cells 3, which facilitates its transport to the site where, for the same reason, it can be easily erected on the foundations already in place or in floor, using low capacity lifting gear before each cell is filled with self-placing concrete to obtain, thanks to the inter-alveolar passages 14 which allow regular distribution of concrete over the entire surface of the formwork, a wall final having a homogeneous mass in which the trellis 9 is trapped, forming the frame of the wall, the walls of which, external and internal 16, are formed by the walls, exterior and interior, of the lost formwork.
  • the lost honeycomb formwork thus produced is transported to the site, where, erected on the prepared foundations, the alveoli 3 being in a vertical position, it receives concrete, of appropriate formulation and consistency, in each of said cells 3 which it comprises, said concrete spreading uniformly between said cells thanks to the transfer channels 14 reserved between them by means of wedges 11.
  • connection of two adjacent wall panels, located in the same plane or in a dihedral position, constructed by said method, is carried out so traditional, the irons awaiting the lattice 9 of each of the two layers being rendered prisoners of an intermediate structural element.
  • a similar connection is made between different floor wall elements, as well as between walls and floors.
  • the lost cellular formwork thus manufactured is transported to the site, where, lying horizontally on the walls already built there receives the concrete of appropriate formulation and consistency in each of the cells 3 that it comprises, said concrete spreading uniformly on the horizontal plane in and between said cells thanks, on the one hand, to the transfer channels 14 reserved between them by means of wedges 11 and, on the other hand, thanks to the vents 23 which ensure the evacuation of the air that could be held captive.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP01430007A 2000-02-26 2001-02-19 Hohlkörperschalungselement zum Herstellen von Wänden und Böden und Verfahren zum Herstellen und Verwenden dieses Elementes Withdrawn EP1134327A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0002496 2000-02-26
FR0002496A FR2805555B1 (fr) 2000-02-26 2000-02-26 Coffrage perdus alveolaires pour la construction de murs et de planchers et procedes de fabrication et de mise en oeuvre desdits coffrages

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EP1134327A1 true EP1134327A1 (de) 2001-09-19

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EP01430007A Withdrawn EP1134327A1 (de) 2000-02-26 2001-02-19 Hohlkörperschalungselement zum Herstellen von Wänden und Böden und Verfahren zum Herstellen und Verwenden dieses Elementes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013098495A1 (fr) * 2011-12-30 2013-07-04 Ingerec Panneau destine a constituer une banche perdue pour la fabrication de murs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030687A (en) * 1958-06-23 1962-04-24 Paul M Muspratt Method and apparatus for producing a monolithic concrete construction panel
DE2208659A1 (de) * 1972-02-24 1973-09-06 Herbert Schmidt Mantelbetonwand
FR2244887A1 (en) * 1973-09-20 1975-04-18 Steiner Josef Hollow wall element for residential buildings - contains internal layers and tubular distance pieces
DE3435692A1 (de) * 1984-09-28 1985-05-30 Ulrich Eugen 5000 Köln Milbradt-Lojda Verfahren zur herstellung gelochter fertigbauteile aus beton
US4731971A (en) * 1983-09-29 1988-03-22 Terkl Hans Ulrich Large-panel component for buildings
EP0630727A1 (de) * 1993-06-23 1994-12-28 Tian Khoo Bauteilsatz zur Verwendung beim Bauen und Verwendungsverfahren
DE19521262A1 (de) * 1995-06-10 1996-12-12 Christa Gmbh & Co Kg Bauplatte

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511542U1 (de) 1995-07-18 1995-11-09 Fries, Horst, 66679 Losheim Schnellbausystem zur Errichtung tragender Wände von Gebäuden verschiedener Art und Nutzung
EP0757137A1 (de) 1995-08-01 1997-02-05 Willibald Fischer Schalung
FR2745315B1 (fr) 1996-02-26 1998-05-15 Dauron Francoise Procede de realisation d'un mur en beton coule entre deux parois collaborantes et moyens pour la mise en oeuvre du procede
US6079175A (en) 1997-04-09 2000-06-27 Clear; Theodore E. Cementitious structural building panel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030687A (en) * 1958-06-23 1962-04-24 Paul M Muspratt Method and apparatus for producing a monolithic concrete construction panel
DE2208659A1 (de) * 1972-02-24 1973-09-06 Herbert Schmidt Mantelbetonwand
FR2244887A1 (en) * 1973-09-20 1975-04-18 Steiner Josef Hollow wall element for residential buildings - contains internal layers and tubular distance pieces
US4731971A (en) * 1983-09-29 1988-03-22 Terkl Hans Ulrich Large-panel component for buildings
DE3435692A1 (de) * 1984-09-28 1985-05-30 Ulrich Eugen 5000 Köln Milbradt-Lojda Verfahren zur herstellung gelochter fertigbauteile aus beton
EP0630727A1 (de) * 1993-06-23 1994-12-28 Tian Khoo Bauteilsatz zur Verwendung beim Bauen und Verwendungsverfahren
DE19521262A1 (de) * 1995-06-10 1996-12-12 Christa Gmbh & Co Kg Bauplatte

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013098495A1 (fr) * 2011-12-30 2013-07-04 Ingerec Panneau destine a constituer une banche perdue pour la fabrication de murs
FR2985275A1 (fr) * 2011-12-30 2013-07-05 Ingerec Panneau destine a constituer une banche perdue pour la fabrication de murs
AU2012360752B2 (en) * 2011-12-30 2015-09-10 Ingerec Panel intended to form a lost form panel for the production of walls

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Publication number Publication date
FR2805555B1 (fr) 2003-05-02
FR2805555A1 (fr) 2001-08-31

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