EP0093697B1 - Procédé et dispositif de fabrication d'un élément profilé utilisé en tant que coffrage perdu - Google Patents

Procédé et dispositif de fabrication d'un élément profilé utilisé en tant que coffrage perdu Download PDF

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Publication number
EP0093697B1
EP0093697B1 EP83810187A EP83810187A EP0093697B1 EP 0093697 B1 EP0093697 B1 EP 0093697B1 EP 83810187 A EP83810187 A EP 83810187A EP 83810187 A EP83810187 A EP 83810187A EP 0093697 B1 EP0093697 B1 EP 0093697B1
Authority
EP
European Patent Office
Prior art keywords
strip
profiled
process according
blind holes
sections
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
EP83810187A
Other languages
German (de)
English (en)
Other versions
EP0093697A3 (en
EP0093697A2 (fr
Inventor
Heinz Witschi
Peter Fankhauser
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.)
FANKHAUSER, PETER
WITSCHI, HEINZ
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
Priority to AT83810187T priority Critical patent/ATE20612T1/de
Publication of EP0093697A2 publication Critical patent/EP0093697A2/fr
Publication of EP0093697A3 publication Critical patent/EP0093697A3/de
Application granted granted Critical
Publication of EP0093697B1 publication Critical patent/EP0093697B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/365—Stop-end shutterings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B21D31/046—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal making use of rotating cutters
    • 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
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B28B7/0017—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps for attaching mould walls on mould tables
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • 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 invention relates to a method for producing a profile element made of expanded metal or sheet metal with a roughened or partially permeable surface, which is used as lost formwork for two stages of a reinforced concrete structure to be concreted, and a system for carrying out the method with an uncoiler of the material band.
  • At least one profile element comprising holes made of expanded metal or sheet metal with a roughened or partially permeable surface for carrying out reinforcing bars as lost formwork for two stages of a reinforced concrete structure to be concreted is known from published European patent application No. 0039661.
  • Such profile elements are usually produced from an expanded metal strip having a certain length in such a way that the strip is profiled in a press, the holes being punched beforehand in the still flat strips.
  • the invention specified in claim 1 is based on the object of proposing a method for producing a profile element made of expanded metal or sheet metal with a roughened or partially permeable surface, which is carried out much more efficiently and quickly than the previously known production methods.
  • the profile element should be able to be used as lost formwork immediately on site without additional refurbishment.
  • the reinforcement bars should be able to be carried out at the desired distances from one another and at the desired heights as required by the profile element, the penetration of the concrete of the first concrete stage through the holes of the profile element being avoided.
  • the height of the formwork should be finely adjustable as required.
  • the system according to the invention for carrying out the method is characterized by a roller line for guiding the strip unwound from the reel or the sections sheared off the strip, a punching device for the blind holes provided on the roller line, and a length cutting shear, as well as a connecting piece following the roller line Existing roll forming machine.
  • the flat material strip can advantageously be sheet steel, which is provided with knobs during the profiling process in order to make its surface rough and partially permeable.
  • at least the two opposing first pressure rollers of the profiling machine, as seen in the direction of development, are provided with interlocking depressions and elevations.
  • profile elements are used for two concreting stages, which are shown in FIGS. 1 and 4.
  • profile elements consist of expanded metal or sheet metal with a roughened or partially permeable surface in order to achieve a good connection between the two concreting stages.
  • the thickness of the expanded metal or sheet is advantageously 0.6-1.5 mm.
  • the profile elements are produced in a single pass in the system according to FIG. 7.
  • the flat material strip 2 consisting of expanded metal or sheet metal, which is wound on an uncoiler 1, is unwound by the motor and monitored by means of a loop control 3.
  • the unwound material strip 2 is then conveyed on by a roller mill 4.
  • the roller mill 4 consists, as usual, of driven and driven rollers, each lying in pairs against each other.
  • the material strip 2 runs between the drive and drive rollers up to the punching device 5.
  • four blind holes 12 are punched simultaneously in the longitudinal edge region (s) of the material strip 2.
  • the punching units can be set to the respective width and the hole spacing from 100 to 300 mm.
  • the blind holes 12 are z. B. formed by at least three intersecting cuts (see Fig. 2).
  • the three intersecting cuts are punched in at least two parallel rows, offset from one another.
  • the minimum distances between the cutting groups forming the blind holes 12 are 5 cm.
  • the blind holes 12 can, however, also be formed by a zigzag-shaped cut which lies in different directions (see FIG. 5). Other embodiments of the blind holes are also conceivable.
  • the material strip 2 is fed to a cutting shear 6.
  • the material strip 2 is sheared transversely to sections 11, 11 'of the desired length.
  • the length of the sections can be set on a digital measuring system from 800 to 2500 mm.
  • the material strip 2 is briefly stopped for the punching and shearing process.
  • the sections 11, 11 are fed to the profiling machine 7 at a higher speed (approx. 8 m / min).
  • the first three pairs of the pressure rollers 9 lying against one another are provided with depressions 16 and elevations 17 which engage in one another.
  • the sheet metal sections 11, 11 'running between these pressure rollers 9 are provided with knobs by means of these pressure rollers 9 in order to make their surfaces rough and partially permeable to the plastic concrete (see FIG. 8).
  • Longitudinal profiles 14 are gradually formed by the further pressure rollers 8 of the profiling machine 7 lying opposite one another.
  • the longitudinal profiles 14 can have the shape of longitudinal teeth or longitudinal waves which extend over the entire length of each section 11, 11 '. If the material strip 2 consists of expanded metal, the first pressure rollers 9 are switched off. With 10 discharge rollers of the system are designated.
  • the operating speed of the plant i.e. that is, the amount of profile elements effectively produced depends on the length of the sections 11, 11 'and on the spacing of the blind holes 12 from one another. With a section length of 830 mm and a hole spacing of 100 mm, the working speed is approx. 2.5 m / min. With a 2500 mm section length and 300 mm hole spacing, the speed is approx. 4 m / min.
  • the profile elements can be produced in two embodiments, namely an embodiment according to FIG. 1 with two identical longitudinal edges 11 and areas connected to them with blind holes 12 or an embodiment according to FIG. 4 which has only one longitudinal edge 11 a with a subsequent longitudinal edge area with blind holes 12, which longitudinal region is provided with a stiffening rib 22.
  • the other longitudinal edge of this embodiment is formed by a longitudinal prong or a longitudinal shaft 14.
  • each profile element is provided with a rust protection strip 15.
  • This rust protection strip 15 is preferably made of plastic. It can be applied to the longitudinal edge 11 a by immersing it in a plastic solution or it can be pushed onto the longitudinal edge in the manufacturing plant as a finished rail.
  • the profile element (section 11, 11 '), which is used as lost formwork for two stages of a reinforced concrete structure to be concreted, is placed on a formwork 20 which is usually made of wood and on one side, where the second stage is concreted, supported by several wooden wedges 18.
  • the wooden wedges 18 are held on the profile element and on the formwork 20 by means of fastening means 19.
  • the reinforcement bars 13 are pushed through the chosen blind holes 12 at the desired distances and heights.
  • the wooden wedges 18 are removed from the profile element or elements and can be used further.
  • the concrete of the first stage 21 has hardened, the second stage of the structure is concreted.
  • the profile element or elements are not removed; thus a lost formwork is created.
  • the profiled end face of the first stage ensures that the second stage is perfectly interlocked with the first.
  • the of the first pressure rollers 9 of the Profiling machine 7 in the steel sheet embossed knobs 23 protrude alternately on one and the other side of section 11, 11 '.
  • Slit-like openings 24 in the steel sheet formed laterally on the protruding knobs 23 can partially penetrate the plastic concrete and hold onto the knobs 23 on both sides. A perfect interlocking of the two concreted stages 21, 25 of the reinforced concrete structure is thus achieved (see FIGS. 8 and 9).
  • the profile elements can be placed one on top of the other and next to one another without mutual connection, and they are only held on the wooden wedges 18 by means of fastening means 19.
  • two profile elements are placed on top of one another in such a way that their longitudinal profiles 14 collapse.
  • the height of the formwork can thus be gradually and finely changed and adjusted over a fairly large area.
  • the diameter of the blind holes 12 is advantageously 22 mm. With this diameter, reinforcement bars with a diameter of 6 - 30 mm can be used.
  • the reinforcing bars can also be pierced through the holes by partially tearing open the hole wall.
  • profile elements produced in the method described above and in the system described above are much more practical on the construction site than the known profile elements because they do not require any further processing.
  • the price of such profile elements is also considerably cheaper than that of the known profile elements because the manufacturing costs are greatly reduced.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Thin Magnetic Films (AREA)
  • Sewage (AREA)

Claims (8)

1. Procédé de fabrication d'un élément profilé en un métal susceptible d'être étiré ou en tôle, avec une surface rendue rugueuse ou partiellement perforée, destiné à être utilisé comme coffrage perdu dans le bétonnage d'un ouvrage en béton armé effectué en deux étapes, caractérisé en ce qu'une bande de matière plate (2) est tout d'abord découpée de manière à former dans une zone marginale située le long d'un de ses bords, des amorces d'ouvertures (12) destinées à être traversées par des fers d'armage (13), puis la bande (2) est cisaillée transversalement en segments (11, 11') de la longueur désirée et les segments (11, 11') sont profilés de manière à former des zones longitudinales (14) profilées, parallèles les unes aux autres sur toute la longueur de chaque segment, et finalement chaque segment (11, 11') ainsi profilé est pourvu d'une bordure (15) de protection contre la rouille sur l'un de ses bords longitudinalement.
2. Procédé selon la revendication 1, caractérisé en ce que la dite bande de matière plate (2) est en tôle d'acier et en ce que durant l'opération de profilage elle est également pourvue de bossages (23) de manière à rendre sa surface rugueuse et partiellement perforée.
3. Procédé selon la revendication 1, caractérisé en ce que les amorces d'ouvertures (12) sont formées chacune par trois fentes se croisant en étoile, ces fentes étant disposées en quinconce, sur au moins deux rangées parallèles avec des espacements minimums de 5 cm.
4. Procédé selon la revendication 1, caractérisé en ce que les amorces d'ouvertures (12) sont formées chacune par une fente en zig-zag, ces fentes étant orientées dans différentes directions.
5. Procédé selon la revendication 1, caractérisé en ce que les dites zones profilées (14) sont réalisées sous forme d'ondulations ou de redans par emboutissage entre rouleaux.
6. Procédé selon la revendication 1, caractérisé en ce que la bordure de protection contre la rouille (15) est déposée sur l'un des bords longitudinaux de chaque segment profilé par immersion de ce dernier dans une solution de matière plastique.
7. Installation pour la mise en oeuvre du procédé selon la revendication 1, comprenant un dévidoir (1) pour la bande de matériau, caractérisé par un train de rouleaux (4) destinés à conduire la bande (2) qui se déroule du dévidoir (1), ou les segments (11, 11') cisaillés dans la bande, un dispositif (5) de découpage des amorces d'ouverture (12) associé au train de rouleaux (4) et une cisaille (6) de séparation des segments, ainsi qu'une machine de profilage (7) comprenant des rouleaux d'emboutissage, cette machine étant adjacente au train de rouleaux.
8. Installation selon la revendication 7, caractérisé en ce que dans la machine d'emboutissage (7) vue dans le sens du déroulement au moins les deux premiers rouleaux d'emboutissage (9) pressés l'un contre l'autre sont pourvus de nervures (16) et de saillies (17) engagées les unes dans les autres.
EP83810187A 1982-05-04 1983-05-03 Procédé et dispositif de fabrication d'un élément profilé utilisé en tant que coffrage perdu Expired EP0093697B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810187T ATE20612T1 (de) 1982-05-04 1983-05-03 Verfahren und anlage zur herstellung eines als verlorene abschalung verwendbaren profilelementes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2745/82 1982-05-04
CH2745/82A CH655872A5 (de) 1982-05-04 1982-05-04 Verfahren und anlage zur herstellung eines als verlorene abschalung verwendbaren profilelementes.

Publications (3)

Publication Number Publication Date
EP0093697A2 EP0093697A2 (fr) 1983-11-09
EP0093697A3 EP0093697A3 (en) 1984-11-07
EP0093697B1 true EP0093697B1 (fr) 1986-07-02

Family

ID=4240654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810187A Expired EP0093697B1 (fr) 1982-05-04 1983-05-03 Procédé et dispositif de fabrication d'un élément profilé utilisé en tant que coffrage perdu

Country Status (5)

Country Link
EP (1) EP0093697B1 (fr)
AT (1) ATE20612T1 (fr)
CA (1) CA1218267A (fr)
CH (1) CH655872A5 (fr)
DE (1) DE3364364D1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8711086U1 (fr) * 1987-08-14 1987-10-01 Doellen, Heinz Von, 5840 Schwerte, De
FR2627524B1 (fr) * 1988-02-22 1991-06-21 Ballot Batiment Travaux Public Procede et dispositif pour la realisation en continu d'ouvrages en beton
DE68912648T2 (de) * 1988-05-25 1994-07-07 Cenefill Pty Ltd Bauverfahren.
ES2067199T3 (es) * 1991-06-17 1995-03-16 Brefeba Nv Elemento constructivo para limitar una superficie frontal de un encofrado.
EP0586867A1 (fr) * 1992-09-08 1994-03-16 Peca-Verbundtechnik Gmbh Coffrage d'about
DE9406373U1 (de) * 1994-04-16 1994-06-30 Dillinger Stahlbau Schalungsblech
DE29602264U1 (de) 1996-02-09 1997-06-05 Fischer Willibald Stützteil
DE19722449A1 (de) * 1997-05-28 1998-12-03 Rene P Schmid Abschalelement
FR2784125B1 (fr) * 1998-10-02 2007-06-22 Euromat France Dispositif et procede pour joints de construction de dallages en beton
GB0409216D0 (en) * 2004-04-24 2004-05-26 Metaform Ltd Multi purpose screed rail, formwork and joint protection mechanism
ATE535662T1 (de) 2007-03-16 2011-12-15 Maegert Bautechnik Ag Verfahren und vorrichtung zum abschalen eines bewehrten, plattenartigen betonelements
ITVI20070181A1 (it) * 2007-06-22 2008-12-23 Stefano Boggian Staffa per tavole di armatura
AU2008255272B2 (en) * 2007-12-13 2015-07-09 Illinois Tool Works Inc. Improvements in and in relation to concrete form work
CN102172711A (zh) * 2010-12-17 2011-09-07 中色奥博特铜铝业有限公司 打包带生产机
NL2006645C2 (nl) * 2011-04-20 2012-10-23 Dycore B V Vloerelement met gedeelde randkist.
CN103029204B (zh) * 2012-12-26 2014-12-10 江苏中南建筑产业集团有限责任公司 一种预制叠合板的模数化侧模
PT107373A (pt) * 2013-12-19 2015-06-19 Afonso Moreira Serro Cofragem telescópica nivelável para pavimentação com alinhamento geométrico linear ou axial e radial
US11359392B2 (en) * 2019-08-05 2022-06-14 Ccs Contractor Equipment & Supply, Llc Form bracket for concrete panel form

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914302A1 (de) * 1969-03-20 1970-10-08 Uk Nii Metallov Verfahren zur Herstellung von gebogenen und gewellten Walzprofilen
CH646751A5 (de) * 1980-05-01 1984-12-14 Pawe Ag Verwendung von aus streckmetall oder aus blech mit aufgerauhter oberflaeche bestehenden profilelementen bei der betonierung eines bauwerkes.

Also Published As

Publication number Publication date
EP0093697A3 (en) 1984-11-07
DE3364364D1 (en) 1986-08-07
CH655872A5 (de) 1986-05-30
EP0093697A2 (fr) 1983-11-09
ATE20612T1 (de) 1986-07-15
CA1218267A (fr) 1987-02-24

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