EP0237126A2 - Elément de coffrage préfabriqué à utiliser lors du coulage de planchers en béton et méthode d'utilisation d'un tel élément de coffrage - Google Patents

Elément de coffrage préfabriqué à utiliser lors du coulage de planchers en béton et méthode d'utilisation d'un tel élément de coffrage Download PDF

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Publication number
EP0237126A2
EP0237126A2 EP87200419A EP87200419A EP0237126A2 EP 0237126 A2 EP0237126 A2 EP 0237126A2 EP 87200419 A EP87200419 A EP 87200419A EP 87200419 A EP87200419 A EP 87200419A EP 0237126 A2 EP0237126 A2 EP 0237126A2
Authority
EP
European Patent Office
Prior art keywords
guiding member
casting
guiding
smoot
fields
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Withdrawn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
EP87200419A
Other languages
German (de)
English (en)
Other versions
EP0237126A3 (fr
Inventor
Kristian Arthur Kristensen
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
Priority claimed from DK103386A external-priority patent/DK103386D0/da
Priority claimed from DK426886A external-priority patent/DK426886D0/da
Application filed by Individual filed Critical Individual
Publication of EP0237126A2 publication Critical patent/EP0237126A2/fr
Publication of EP0237126A3 publication Critical patent/EP0237126A3/fr
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

Definitions

  • the present invention related to a prefabricated guiding member for use when casting concrete floors and of the type as described in the introductory part of claim 1.
  • Such a guiding member is known from the describtion to EP-­patent specification No. 54 026.
  • the cross section of this known guiding member has form as a lying H, i.e. with a rather broad upper support surface for said end protion of the vibrator beam and with an even broader foot portion.
  • this known guiding member is provided with cross holes in the web protion which by opposite sides have protruding brackets adapted to support a reinforcement if any.
  • known guiding members of the type in question including the above mentioned guiding member are defective.
  • formation of cracks along the guiding members is one problem connected to an inexpedient cross section which complicate a good contact with the casting mixture as this in order to obtain a good result shall better contain a minumum of water, i.e. be relatively dry.
  • uncontrolable formation of cracks may occur along the guiding members. In fairness it should be told that some cracks can not be avoid because by way of nature the concrete shrink during the setting.
  • the invention has for its purpose to provide a guiding member of the type mentioned above and by means of which it in a simple manner is possible to avoid the above mentioned disadvantages.
  • the guiding member is characterized in being provided with corrugated surface at least by one longitudinal side thereof.
  • corrugated surface at least by one longitudinal side thereof.
  • a guiding member according to claim 4 i.e. having corrugated surfaces by both external sides except for short upper side portions which are held smoot in order to better control the inevitable shrink craks when an exceptional heavy concrete mixture being used.
  • Claim 5 states a particular expedient configuration for a guiding member for use along wall joints or for use between floor plate members which due to particular conditions shall be noise isolated, e.g. around fundations for machines, pillars and the like.
  • the guiding member in this embodiment according to claim 6 is shaped with completely plane and smoot side portion which furthermore according to claim 7 may be provided with a cover of artificial resin foam or another suiteable insulation material of which an upper longitudinal portion - after the castin opartion - ­may be removed and substituted by a suiteable joint material, while the lower part of the cover may constitute a permanent thermal and/or sound insulation. Possibly the complete cover may be maintained for constituting a thermal and/or sound insulation.
  • both the corrugated longitudinal sides of the guiding member are dressed with concrete binder, whereby is obtained an extra good contact between the respective concrete plate members and the guiding members which comprises an entirely close and elastic joint between the opposite parts of the guiding member.
  • the invention also relates to the method of using the guiding member according to the invention - as stated in claim 10.
  • the invention is described in more detail with reference to the accompanying drawing, in which:
  • a guiding member or casting guide 2 in almost natural size, since inpractice the guiding member is produced with hights of 80, 100 and 130 mm and with lengths of 2400 and 3900 mm.
  • the guiding member 2 is maded with exposured sides 4 and 6, while a top portion 8 has a smoot upper surface 10 and smoot upper side edge portions 12.
  • a broader foot portion 14 is also maded with exposured side portions 16, while an inclined upper portion 18 of the foot portion 14 normally has only rough surface.
  • the guiding member 2 is provided with suiteable iron reinforce­ment 20 and provided with cross holes 22 which are seen more clearly in Fig. 2 showing the guiding member 2 just after the demoulding, i.e.
  • the guiding member 2 is casted of concrete with a filling arrangement containing crushed granite with a stone size of some 4-8 mm. By the exposure is obtained a correspondingly rough, corrugated surface structure; but as mentioned it is particularly only the vertical side portions of the guiding member 2 which are being entirely exposured since it is not always reguired that the inclined upper side portions 18 of the foot portion 14 in full extent are able to meet the displacement forces during the setting of the adjoining concrete plate members.
  • the guiding member 24 shown in Fig. 3 is produced with a longitudinal side 26 of which the said stone material is exposured over the full hight thereof while the opposite longitudinal side 28 is produced quite smoot.
  • the side 28 is after setting and drying provided with an upper enlongate joint member 30 being secured to the smoot surface of the side portion 28 by means of a suiteable glue.
  • the joint member 30 consist of artificial resin foam, e.g. polystyrene, or of another suiteable joint material which after the casting operation and the setting is adapted to remove and to substitute by a permanent joint, preferably of an elastic joint material.
  • the joint member 30 may be constituted by a foaming process directly against the smoot surface side 28 of the guiding member 24.
  • the guiding member 32 shown in Fig. 4 is also produced with a longitudinal side portion 34 being entirely exposured, while the opposite longitudinal side portion 36 is quite plane and smoot as the longitudinal side portion 36 by a subsequent operation is provided with an entirely covering joint cover 38 of artificial resin foam.
  • the guiding member 32 may also by the casting operation be provided with the joint cover 38 by insertion of this into the mould; however, the joint cover 38 preferably is secured to the guiding member 32 after the demoulding and setting.
  • the joint cover 38 may be constituted by a foaming process directly against the smoot, plane side 36 of the guiding member 32.
  • an upper,longitudinal portion of the joint cover 38 may be removed, and when the joint is quite dry it may be filled with a suiteable permanent joint material, while the remaining lower part of the joint cover 38 may constitute a permanent thermal and/or sound insulation between the adjoining floor surfaces or along adjoining walls or fundations etc.
  • the guiding member 40 shown in Fig. 5 - inprinciple consist of two parts constituted by two symmetric parts being inter­connected by means of a central castes in joint band 42 of Neoprene-rubber.
  • the guiding member 40 In return the guiding member 40 by opposite longitudinal sides 44 provided with corrugated, exposured surface in the entire hight.
  • a suiteable concrete binder By furthermore in advance to the casting operation to preparate the corrugated elongate sides 44 with a suiteable concrete binder it is possible to obtain an extremely close connection with the adjoining concrete plate members so that shrink cracks can be entirely avoid along the guiding member 40 since the rubber joint 42 thereof is able to compensate for all the shrink by the setting of the adjoining concrete plate members.
  • FIG. 6 shows how the guiding member according to the invention can be produced on a casting plan 46 by means of loose mould parts 48 of metal plate material since the guiding members are casted in inverted position, i.e. with the foot portion turned opwards.
  • the mould parts 48 are provided with lower cross braces 50 and 52 of which the outermost cross braces 52 are adapted to cooperate with L-shaped distance members 54 on the mould end parts (Fig.7). These may furthermore be provided with holes (not shown) for supporting longitudinal reinforcement iron 20 in the cavity of the mould.
  • the mould parts 48 are provided with cross holes 56 through which iron rods or tubes may be inserted in order to hold together the mould battery and for constituting the cross holes 22 of the guiding member 2 (Fig. 2).
  • the iron rods or the tubes may be drawn out of the mould battery already short after the casting opration without the holes 22 thereby "colapses".
  • Fig. 9 illustrates the method of using the guiding members according to the invention in a schematic manner by casting a larger concrete floor which is divided into 25 fields each of about 25-35 m2, where the casting fields are designated with A, B and C, respectively.
  • A, B and C the casting fields are designated with A, B and C, respectively.
  • the guiding members or casting guides have to be construted with optimal quality, i.e. with a smoot surface at the joint side and with corrugated surface at the casting side (opposite to the joint side), i.e. by way of example as shown in Fig. 3 or possibly in Fig. 4.
  • the guiding member according to the invention meets these requirements by being entirely smoot at the joint side and by having exposured, corrugated surface at the casting side, i.e. being able to slip at the joint side and to become an integrated part of the floor at the casting side.
  • shrink cracks by casting operation with standard guiding members normally occurs as a crack along the last casted side also such facts have to be considered. Consequently the casting princip shown in Fig. 9 may be used in the following manner:
  • the A-fileds are casted on the first day as the A-fields are mounted with guiding members 24 and/or 32, where the rough exposured corrugated side faces the A-fields at all four sides thereof.
  • the B-fields at the earliest are casted on the second day as the B-fields are mounted with guiding members 24 and/or 32, where the exposured corrugated sides of two of the guiding members facing the B-fields, which at the other two sides are limited by smoot joint sides of the two other guiding members.
  • the C-fields at the earliest are casted on the third day as the C-fields are mounted with guiding members 24 of which the smoot joint side facing all four sides of the C-fields.
  • smoot joint side of the guiding members are represented by a full line, while the corrugated side of the guiding members in Fig. 9 are representated by a dotted line.
  • the concrete mixture has a low W/C relation ( liter water/ kg.cement), and that the concrete after the casting operation is protected against drying up.
  • FIG. 10 An alternative guiding member 60 is shown in Fig. 10, where an longitudinal side 62 is provided with longitudinal grooves or depressions 64 which may substitute the exposure of the stone material of the concrete.
  • the depressions 64 requires corresponding longitudinal protrutions in the mould parts, if the shown guiding member 60 is not produced by a suiteable extrusion operation.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP87200419A 1986-03-07 1987-03-06 Elément de coffrage préfabriqué à utiliser lors du coulage de planchers en béton et méthode d'utilisation d'un tel élément de coffrage Withdrawn EP0237126A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DK1033/86 1986-03-07
DK103386A DK103386D0 (da) 1986-03-07 1986-03-07 Praefabrikeret lederbjaelke til brug ved stoebning af betongulve samt fremgangsmaade til fremstilling af lederbjaelke
DK426886A DK426886D0 (da) 1986-09-08 1986-09-08 Praefabrikeret lederbjaelke til brug ved stoebning af betongulve samt fremgangsmaade til dens anvendelse
DK4268/86 1986-09-08

Publications (2)

Publication Number Publication Date
EP0237126A2 true EP0237126A2 (fr) 1987-09-16
EP0237126A3 EP0237126A3 (fr) 1988-01-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87200419A Withdrawn EP0237126A3 (fr) 1986-03-07 1987-03-06 Elément de coffrage préfabriqué à utiliser lors du coulage de planchers en béton et méthode d'utilisation d'un tel élément de coffrage

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EP (1) EP0237126A3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243179A (en) * 1990-04-21 1991-10-23 Permaban Screed rail
FR2975712A1 (fr) * 2011-05-27 2012-11-30 Euro Prefa Bandeau de protection d’un releve d’etancheite isolant
FR3031162A1 (fr) * 2014-12-29 2016-07-01 Francois Pavageau Principe de construction de profiles obtenu par assemblage d'au moins deux profils, metalliques ou non, tel l'acier lamine ou etire
FR3038327A1 (fr) * 2015-07-03 2017-01-06 Lesage Dev Poutre prefabriquee pour tablier de pont, assemblage pour tablier de pont comportant ladite poutre, et procede de fabrication d'un tablier de pont

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR406156A (fr) * 1909-08-17 1910-01-24 L Heritier Freres Soc Poutrelle en béton armé
FR2221950A6 (en) * 1971-02-10 1974-10-11 Louis Pierre Shuttering for moulded concrete foundation-stones - consists of T-shaped girders incorporating an expansion joint
FR2262724A1 (en) * 1974-03-01 1975-09-26 Costamagna & Cie B M Inverted T-shaped reinforced concrete girder - has corrugations or ridges up part of the web of the T
FR2286255A1 (fr) * 1974-09-28 1976-04-23 Escriba Jean Coffrage perdu prefabrique pour des ouvrages en beton
US3953661A (en) * 1974-01-03 1976-04-27 Vinylex Corporation Extrusion apparatus, process and article
FR2292907A1 (fr) * 1974-11-27 1976-06-25 Toffolo Albert Nouveau joint de dilatation
DE3026641A1 (de) * 1980-07-14 1982-08-19 Gernot Ing.(grad.) 6720 Speyer Kissel Fertigteil, z.b. aus stahlbeton, zur herstellung eines sturzes, ggf. in verbindung mit einem rolladenkasten, oder eines deckenendauflagers mit ringanker
WO1983003862A1 (fr) * 1982-05-03 1983-11-10 Vm Permaban Ab Procede de positionnement de joint de dilatation lors de la coulee d'une dalle de beton
GB2147929A (en) * 1983-10-20 1985-05-22 Peter Leonard Goodhind Building construction
DE8431614U1 (de) * 1984-10-27 1986-02-20 ORI-PRIMAT Handelsgesellschaft mbH & Co KG, 5650 Solingen Deckenrand-Abschlußstein

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR406156A (fr) * 1909-08-17 1910-01-24 L Heritier Freres Soc Poutrelle en béton armé
FR2221950A6 (en) * 1971-02-10 1974-10-11 Louis Pierre Shuttering for moulded concrete foundation-stones - consists of T-shaped girders incorporating an expansion joint
US3953661A (en) * 1974-01-03 1976-04-27 Vinylex Corporation Extrusion apparatus, process and article
FR2262724A1 (en) * 1974-03-01 1975-09-26 Costamagna & Cie B M Inverted T-shaped reinforced concrete girder - has corrugations or ridges up part of the web of the T
FR2286255A1 (fr) * 1974-09-28 1976-04-23 Escriba Jean Coffrage perdu prefabrique pour des ouvrages en beton
FR2292907A1 (fr) * 1974-11-27 1976-06-25 Toffolo Albert Nouveau joint de dilatation
DE3026641A1 (de) * 1980-07-14 1982-08-19 Gernot Ing.(grad.) 6720 Speyer Kissel Fertigteil, z.b. aus stahlbeton, zur herstellung eines sturzes, ggf. in verbindung mit einem rolladenkasten, oder eines deckenendauflagers mit ringanker
WO1983003862A1 (fr) * 1982-05-03 1983-11-10 Vm Permaban Ab Procede de positionnement de joint de dilatation lors de la coulee d'une dalle de beton
GB2147929A (en) * 1983-10-20 1985-05-22 Peter Leonard Goodhind Building construction
DE8431614U1 (de) * 1984-10-27 1986-02-20 ORI-PRIMAT Handelsgesellschaft mbH & Co KG, 5650 Solingen Deckenrand-Abschlußstein

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2243179A (en) * 1990-04-21 1991-10-23 Permaban Screed rail
FR2975712A1 (fr) * 2011-05-27 2012-11-30 Euro Prefa Bandeau de protection d’un releve d’etancheite isolant
FR3031162A1 (fr) * 2014-12-29 2016-07-01 Francois Pavageau Principe de construction de profiles obtenu par assemblage d'au moins deux profils, metalliques ou non, tel l'acier lamine ou etire
FR3038327A1 (fr) * 2015-07-03 2017-01-06 Lesage Dev Poutre prefabriquee pour tablier de pont, assemblage pour tablier de pont comportant ladite poutre, et procede de fabrication d'un tablier de pont

Also Published As

Publication number Publication date
EP0237126A3 (fr) 1988-01-27

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