EP0117443B1 - Coffrage permanent et calorifuge pour constructions de murs - Google Patents

Coffrage permanent et calorifuge pour constructions de murs Download PDF

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Publication number
EP0117443B1
EP0117443B1 EP84100868A EP84100868A EP0117443B1 EP 0117443 B1 EP0117443 B1 EP 0117443B1 EP 84100868 A EP84100868 A EP 84100868A EP 84100868 A EP84100868 A EP 84100868A EP 0117443 B1 EP0117443 B1 EP 0117443B1
Authority
EP
European Patent Office
Prior art keywords
plates
connecting elements
permanent form
concrete
stabilizing
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
EP84100868A
Other languages
German (de)
English (en)
Other versions
EP0117443A1 (fr
Inventor
Karl Hans Heuft
Horst Klein
Ulrich Nonn
Hugo Ritzdorf
Bodo Sailler
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.)
KLAUS KERN TE MONTABAUR, BONDSREPUBLIEK DUITSLAND.
Original Assignee
Gebr Rhodius & Co KG 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
Application filed by Gebr Rhodius & Co KG GmbH filed Critical Gebr Rhodius & Co KG GmbH
Priority to AT84100868T priority Critical patent/ATE23593T1/de
Publication of EP0117443A1 publication Critical patent/EP0117443A1/fr
Application granted granted Critical
Publication of EP0117443B1 publication Critical patent/EP0117443B1/fr
Expired legal-status Critical Current

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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
    • 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
    • E04B2/8652—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties located in the joints of the forms
    • 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
    • E04B2002/867—Corner details
    • 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
    • E04B2002/8676—Wall end details

Definitions

  • the invention relates to permanent formwork for a wall construction, the formwork being constructed from plates which are kept at a distance from one another by connecting elements and whose space is filled with concrete.
  • the invention further relates to a stabilizing beam for such formwork.
  • a permanent formwork according to the preamble of claim 1 is known from DE-A-25 00 256, the slabs being stone slabs and the joints between the slabs being sealed with mortar.
  • the mortar seal creates a firm connection between the panels, which means that the formwork has sufficient stability before filling.
  • panels made of foamed polystyrene, mineralized wood wool or the like are used, this stabilization is not guaranteed and the underlying row must first be filled with concrete before the next row of panels is put on, or the formwork must be supported from the outside if it is is filled with concrete at full floor height at once.
  • a similar permanent formwork is known from DE-A-23 49 601, the plates being made of hard foam or hard plastic.
  • the opposite plates are held together by appropriately profiled webs, which are arranged in continuous grooves with a T or L-shaped cross section.
  • the connection to the panels located on the same side of the formwork is made by a strongly undercut external profile or internal profile of the narrow sides.
  • the formwork is not sufficiently stabilized.
  • the invention is therefore based on creating a permanent formwork that has sufficient stability so that the formwork can be filled at full height at once, and to create a suitable stabilizing beam.
  • the individual connecting elements are expediently spot welded to two horizontal stabilizing bars.
  • the stabilizing bars are e.g. B. to steel wire of 5 mm thickness, so that the stabilizing bars are made of the same material as the webs of the connecting elements.
  • the ladder-like stabilization units can only comprise two connecting elements or a large number and a length of z. B. 6 m. In the individual layers, the ladder-like stabilization beams are appropriately offset.
  • the recesses on the top and bottom of the plates in which the pins of the connecting elements can be used, it is preferably through channels or holes, so that the plates in the assembled state have a system of continuous channels through which from the poured concrete escaping water can be derived. Pins that extend over two or more rows of the plates can also be inserted into the through holes, which makes the formwork more stable.
  • end plates are preferably connected to each of the two plates by a dovetail or tongue and groove profile.
  • the plates abutting one another with their horizontal narrow sides are already connected to one another by the pins of the connecting elements, it may be expedient to additionally provide nub-shaped elevations on the upper narrow side of the plates and corresponding recesses on the lower narrow side in order to make an additional positive engagement between the plates successive To produce rows.
  • the panels are preferably made of rigid foam, especially foamed polystyrene, and generally have no reinforcement.
  • the webs of the connecting elements can consist of sheet metal, a wire with eyelets provided at both ends, or plastic strips.
  • the pins are expediently plastic pipe pieces.
  • the connecting elements can be formed in one or more parts. With bars made of metal or corresponding plastic, the wall has the required fire resistance of 90 minutes.
  • only the outer plate is made of rigid foam, e.g. B. foamed polystyrene with a thickness of 8 cm, while the inner plate consists of another material, in particular a mineral material, for. B. pumice, brick, gas concrete or mineralized wood wool or wood.
  • the connecting elements can only have pins on the outer plates made of rigid foam, while at the end provided for the inner wall of the connecting elements two vertical, each after above and below protruding pieces of wire are attached, which are so spaced that they can accommodate the inner plate between them.
  • the outer formwork ie the panels lying on the outside of the wall, is continued over the floor ceilings so that a ring anchor cover is provided gives.
  • the outer slabs are held here by special wire holders that are guided vertically downwards in the outer area of the concrete filling and are hooked onto the connecting elements of the row of slabs below them by means of hook-shaped ends. At their upper end, these wire holders are connected to the pins in the same way as the connecting elements. This shape of the wire holder prevents it from colliding with the reinforcement of the ring anchor.
  • the length of the pegs and their number depends on the strength of the slabs and the pressure exerted by the fresh concrete poured in.
  • the pressure exerted by the fresh concrete primarily depends on its specific weight and fill level.
  • the number of connecting elements can therefore be greater in the lower rows of a wall than in the upper rows, since a correspondingly lower pressure acts on the upper rows.
  • the plates have the usual grid size, z. B. a height of 25 cm and a length of 25, 50 or 100 cm.
  • the thickness of the plates can be 5 cm.
  • a vertical support can be provided in the space between the outer and inner panels, which gives the wall sufficient vertical stability before the concrete sets.
  • the vertical support is preferably a lattice girder with an upper chord and two lower chords, as z. B. can be used as reinforcement of floors.
  • the vertical beam is firmly anchored to the floor by pouring it into the concrete base, which is made to compensate for unevenness in the first row of the slabs.
  • the permanent formwork consists of plates 2, 3, which are held together by connecting elements 1. At the wall corners, at door openings, window openings and the like, the plates 2, 3 are also connected at their ends by end plates 8, see FIG. 1 and 2.
  • the connecting elements 1 consist of webs 4 with round openings at both ends through which pins 5, 6 are guided, see FIG. Fig. 3.
  • the web 4 is normally halfway up the pins 5, 6.
  • the connecting elements 1 can consist of 5 mm thick steel wire, which is bent at both ends to eyelets through which the pins 5, 6 are inserted.
  • the two pins 5, 6 of a connecting element are inserted into the recesses 7 of two plates 2, 3 lying opposite one another, the upper halves of the pins 5, 6 protruding upward, so that the next row of plates 2, 3 can be plugged onto them .
  • a connecting element is inserted every 12.5 cm.
  • the first and the last connecting element 1 each have a distance of 6.25 cm from the lateral boundary of the plates 2, 3. This results in the usual grid dimension of 25 cm for the length of the plates.
  • the height of the plates 2, 3 is 25 cm and the thickness 5 cm.
  • the connecting elements 1 are usually dimensioned such that the unplastered wall has a thickness of 25 cm.
  • the webs 4 of the connecting elements 1 are partially connected by stabilizing rods 22 to form a ladder-like unit.
  • the crossing points of the stabilizing bars 22 are welded to the webs 4.
  • Only two connecting elements 1 can be connected to one another in this way can be connected or any number, the length of the ladder-like stabilizing support 23 is limited to about 6 m for practical reasons.
  • Fig. 9 shows the horizontal stabilization beam in detail.
  • the webs 4 can also run in a zigzag shape. The webs 4 and the eyelets can be continuously bent from a wire.
  • the plates 2, 3 are thickened by an inwardly projecting bulge 10 in order to prevent the recesses from breaking out.
  • the recesses 7 can be continuous vertical channels or bores 7a, which then also act as drainage for concrete water. So that the pins 5, 6 cannot fall through, the bores are set inwards at a corresponding depth.
  • the end plates 8 are connected by a dovetail profile to the inside of the plates 2, 3. There are dovetail-shaped ribs 11 on the narrow sides of the end plates 8 and dovetail-shaped grooves 12 are provided on the mutually facing inner sides of the plates 2, 3.
  • the total of 100 cm long plates 2, 3 have a number of additional grooves 12 on the inside, so that each plate can be cut into 12.5 cm pieces, each of which is already provided with a groove 12 at its ends and can thereby be connected at its ends by an end plate 8.
  • the ribs 11 are offset from the center plane of the end plates 8 towards the inside, whereby an additional Variations réelle- i ke t in the longitudinal extension of the formwork results when the end plates laterally reversed 8, so the outside with the inside to be used.
  • the offset is approximately 1.5 cm, so that when an end plate 8 is inserted the wrong way round, the plates 2, 3 protrude 3 cm and can be shortened by this amount or the recess can accommodate a window frame or the like.
  • the upper narrow side of the plates 2, 3 is provided with circular knobs 13, and the lower narrow side is provided with corresponding depressions 14, which results in an additional engagement between two plates lying one above the other.
  • the end plates 8 are also provided with cutouts 7, knobs 13 and depressions 14 in the same grid dimension as the plates 2, 3.
  • Fig. 4 shows a larger bandage from several plates 2, 3 including a corner bandage.
  • the plates 2, 3 of a row are offset from those of the row below and the row above by a quarter of the total length, ie by 25 cm, so that the vertical joints are not aligned.
  • the offset can also be 50 cm.
  • the same plates 2, 3 can be used on the wall corner, which are each connected by end plates 8. Through the recesses 7 provided in the end plates 8, a single pin 5 without a web 4 is inserted, which engages in a recess 7 of a plate 2 of the row above. No special shapes of the plates 2, 3 are therefore required for the corner assembly.
  • FIGS. 5a, 5b and 5c One way of creating such formwork on wall corners and wall connections is to use specially designed connecting elements, an example of which is shown in FIGS. 5a, 5b and 5c, two consecutive bond layers being shown. No special plates are used for this, but the plates 2, 3 shown in FIGS. 1 and 2 are only shortened, namely on the outside of the wall by the .plate thickness and on the inside by the wall thickness minus the plate thickness. In Fig. 5a the plates 2a and 3b are not shortened, while the plates 2b and 3a are shortened. At wall corners, particular care must be taken to ensure that the plates 2a, 2b on the outside can withstand the pressure of the fresh concrete poured in. In the recesses closest to the wall corner, the normal connecting elements 1 can not be used because z. B.
  • the plate 2a opposite plate 3a is somewhat shorter due to its arrangement on the inside of the wall.
  • pins 5 are also inserted into the last two recesses 7, which are connected to the last connecting element 1 of the other wall by two connecting brackets 9.
  • the connecting bracket 9 is bent at the end into a hook and is simply hung on the last connecting element 1 of the other wall.
  • a pin 5 in the last two recesses 7 of the plate 2b are connected to the last connecting element 1 between the plates 2a and 3a.
  • Fig. 5b shows the dressing position in the row of plates above and below the row of plates shown in Fig. 5a.
  • the plates 2a and 3b are shortened, while the plates 2b and 3a have the full length corresponding to the grid.
  • the knobs 13 and, correspondingly, the corresponding depressions 14 are arranged such that the knobs 13 at the end of the plate 2a from FIG. 5a into the recess 14 of the plate 2b coming from the other side in FIG Fig. 5b engages the next dressing layer shown.
  • One of the knobs 13 is thus arranged in the middle of the plate and at a distance from the grid dimension corresponding to half the plate thickness.
  • Fig. 6 shows in section a formwork in which only the outer panels 2 consist of rigid foam, while the inner panels 3 are brick panels with a thickness of about 4 cm.
  • the brick slabs are plastered.
  • the connecting element 1 consists of steel wire, at one end of which an eyelet is bent, which receives the pins 5 for the outer plates 2.
  • two vertical wire pieces 15 are welded, which have a mutual distance which corresponds to the thickness of the inner plates 3, so that the wire pieces 15 encompass the inner plates 3.
  • this permanent formwork has the advantage that the heat-insulating panels 2 made of rigid foam are only on the outside of the building and the dew point is in the concrete core of the wall, so that there is no risk of condensation forming inside the inner formwork.
  • the inner panels 3 can also consist of another mineral building material, namely pumice, gas concrete or mineralized wood wool, or can be wooden panels.
  • Fig. 7 shows the wall construction in the area of the ring anchor.
  • the formwork is continued by the panels 2, while the formwork on the inside is interrupted by the floor ceiling 16.
  • Wire holders 17 made of 5 mm steel wire are used to hold the outer panels 2 at the level of the floor ceiling 16.
  • the wire holders 17 are bent at one end into a hook, by means of which they are hooked onto the connecting elements 1 of the layer below, while the eyelet is bent at a right angle at the upper end and engages around the pin 5.
  • the permanent formwork is filled with concrete up to the height of the inner slabs 3, the wire holders 17 being concreted in sufficiently firmly to hold the outer slabs 2 serving as ring anchor cover vertically. This shape and attachment of the wire holder 17 ensures that they are not in the way of the ring anchor reinforcement.
  • Fig. 8 shows the permanent formwork, in which a vertical beam 18 is used to stiffen the formwork.
  • the vertical support 18 is anchored at the lower end in a concrete base 19 and gives the formwork sufficient stability so that it does not deform when pouring the concrete or due to wind pressure.
  • the vertical girder 18 is a conventional triangular lattice girder with an upper chord and two lower chords, as are used as reinforcement for floor ceilings. On these vertical supports 18 may also be required. Horizonly running steel reinforcements are knotted or simply inserted.
  • a floor slab leveling is carried out to determine the need for a possible leveling layer under the wall. If necessary, the approach level is then reached as a base plate as a whole or by means of compensation strips on the base plate.
  • the actual construction of the permanent formwork begins with the insertion of the attachment connecting elements 24 (FIG. 3), the pins 5, 6 of which are shorter and are only inserted into the underside of the first layer of the plates 2, 3.
  • the normal connecting elements 1 with pins 5, 6 are then introduced onto the top of these plates 2, 3.
  • the first layer prepared in this way is now placed on the floor in an aligned manner and provided with the second layer which is offset by 25 cm.
  • the floor plan is now set up and aligned.
  • an approximately 10 cm high concrete layer is introduced.
  • the other layers of the plates 2, 3 and the connecting elements 1 are built up at the required height.
  • the permanent formwork thus formed is filled with concrete, expediently all around the floor plan.
  • vertical stabilizing girders 18 are required to stabilize the formwork, they are installed at intervals that result from the floor plan when the approx. 10 cm high concrete layer is introduced.
  • the lattice girder 18 is set up vertically and held in the vertical by a concrete fill (concrete base 19). After the 10 cm high concrete layer has hardened and the concrete has been poured on, proceed as described above. If concrete columns 20 are used for vertical stabilization, these are pulled up when the individual layers of the plates 2, 3 are put on.
  • the horizontal, ladder-like stabilization beam 23 are on the second layer of plates 2, 3 in a length of z. B. 3 to 6 m inserted.
  • the aligning effect of the horizontal stabilizing beams 23 is passed on by further stabilizing beams 23 offset to the right and left in the next position. In general, it is sufficient to install the horizontal stabilizing beams 23 after every five positions of the plates 2, 3.
  • the walls erected by means of the permanent formwork according to the invention are plastered in the usual way.
  • Methods for applying plaster to rigid plastic foam panels are now generally known.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Building Environments (AREA)

Claims (9)

1. Coffrage permanent pour une construction de mur, avec deux dalles (2, 3), maintenues à une certaine distance l'une de l'autre par des éléments de raccordement (1), l'espace intermédiaire devant être comblé de béton, et les éléments de raccordement (1) possédant une traverse (4) et, en au moins une extrémité de la traverse, des tenons (5, 6) s'écartant vers le haut et vers le bas, qui peuvent être insérés dans des évidements correspondants (7) aménagés sur le côté supérieur et le côté inférieur des dalles, caractérisé en ce qu'au moins deux éléments de raccordement (1) sont reliés à des barres de stabilisation (22) pour donner une poutre de stabilisation (23) en forme d'échelle.
2. Coffrage permanent selon la revendication 1, caractérisé en ce que la traverse (4) est constituée d'un fil d'acier possédant en ses deux extrémités des boucles repliées destinées à recevoir les tenons (5, 6).
3. Coffrage permanent selon la revendication 1, caractérisé en ce qu'il est prévu pour la stabilisation du coffrage des poutres verticales (18) ancrées dans un socle de béton.
4. Coffrage permanent selon l'une des revendications 1 à 3, caractérisé par des dalles d'obturation (8) qui relient les deux dalles (2, 3) en leurs extrémités latérales.
5. Coffrage permanent selon l'une des revendications 1 à 4, caractérisé en ce que les dalles (2, 3) sont en mousse rigide, en particulier en polystyrène expansé.
6. Coffrage permanent selon l'une des revendications 1 à 5, caractérisé en ce que les dalles (2, 3) sont pourvues sur leur côté supérieur de surélévations du type bouton et, sur leur côté inférieur, d'évidements correspondants, de façon à créer entre des dalles (2, 3) placées l'une sur l'autre une liaison par obstacle.
7. Coffrage permanent selon l'une des revendications 1 à 4, caractérisé en ce que les dalles (2) se trouvant sur le côté extérieur du bâtiment sont en mousse rigide, tandis que les dalles (3) se trouvant sur le côté intérieur sont en un matériau de construction minéral, en laine de bois minéralisée ou en bois.
8. Coffrage permanent selon l'une des revendications 1 à 7, caractérisé en ce que les évidements (7) sont des canaux ou alésages (7a) verticaux et continus formant une évacuation pour l'eau du béton.
9. Poutre de stabilisation destinée à la stabilisation d'un coffrage permanent pour une construction de mur, qui possède deux dalles (2, 3), maintenues à une certaine distance l'une de l'autre par des éléments de raccordement (1), l'espace intermédiaire devant être comblé de béton, et les éléments de raccordement (1) possédant une tràverse (4) et, en au moins une extrémité de la traverse (4), des tenons (5, 6) s'écartant vers le haut et vers le bas, qui peuvent s'insérer dans des évidements correspondants (7) aménagés sur le côté supérieur et le côté inférieur des dalles (2, 3), caractérisée en ce qu'au moins deux éléments de raccordement (1) sont reliés l'un à l'autre sous la forme d'une échelle à l'aide de barres de stabilisation (22).
EP84100868A 1983-01-28 1984-01-27 Coffrage permanent et calorifuge pour constructions de murs Expired EP0117443B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84100868T ATE23593T1 (de) 1983-01-28 1984-01-27 Bleibende, waermedaemmende schalung fuer wandkonstruktion.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3302903 1983-01-28
DE3302903 1983-01-28

Publications (2)

Publication Number Publication Date
EP0117443A1 EP0117443A1 (fr) 1984-09-05
EP0117443B1 true EP0117443B1 (fr) 1986-11-12

Family

ID=6189482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84100868A Expired EP0117443B1 (fr) 1983-01-28 1984-01-27 Coffrage permanent et calorifuge pour constructions de murs

Country Status (3)

Country Link
EP (1) EP0117443B1 (fr)
AT (1) ATE23593T1 (fr)
DE (1) DE3461316D1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE72858T1 (de) * 1984-11-08 1992-03-15 Sismo Int Vorgefertigte baueinheiten und gebrauch im hochbau.
FR2592668A1 (fr) * 1986-01-08 1987-07-10 Cortell Manuel Construction de piliers en beton par assemblage et superposition de pieces plastiques formant coffrage perdu
AT388589B (de) * 1986-03-24 1989-07-25 Alexander Dipl Ing Dr Maculan Verfahren zur herstellung eines mantelbetonmauerwerkes
DE4415017C2 (de) * 1994-04-29 1996-02-15 Bernstein Gmbh Ingenieurbuero Zweistufiger Kombi-Biogasreaktor zur Aufbereitung pflanzlicher und tierischer Biomasse, insbesondere Gülle
AU2300595A (en) * 1994-05-10 1995-11-29 Quad-Lock Building Systems Limited Insulating concrete form utilizing interlocking foam panels
AT409511B (de) * 1995-10-23 2002-09-25 Bruer Manfred Deckenabschlusselement
DE19758238A1 (de) * 1997-12-30 1999-07-29 Giulio Albanese Schalungssystem
KR101027973B1 (ko) 2010-09-14 2011-04-13 (주)제이엠디글로벌 벽면 타설용 폼 블록 구조물
GB2522208A (en) * 2014-01-16 2015-07-22 Andrew Aird A modular wall assembly and method for constructing a modular wall

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB456069A (en) * 1935-05-04 1936-11-03 Joseph Harold Huxley Improvements in or relating to building blocks, slabs, tiles or the like and structures made therefrom
DE2328098A1 (de) * 1973-06-01 1974-12-19 Cotarex Ets Verlorene schalung fuer eine mantelbetonwand
DE2500256A1 (de) * 1975-01-04 1976-07-08 Franz Koch Mauerwerk und verfahren zu seiner herstellung
AT348241B (de) * 1977-06-13 1979-02-12 Hirsch Kurt Kunststoff Verlorene schalung
DE8321739U1 (de) * 1983-07-28 1983-11-17 Aregger AG Bauunternehmung, 8018 Buttisholz Schalungselement für die Mantelbetonbauweise

Also Published As

Publication number Publication date
EP0117443A1 (fr) 1984-09-05
ATE23593T1 (de) 1986-11-15
DE3461316D1 (en) 1987-01-02

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