EP0093697B1 - Method and apparatus for manufacturing a structural element for use as a permanent shuttering - Google Patents

Method and apparatus for manufacturing a structural element for use as a permanent shuttering 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
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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
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German (de)
French (fr)
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EP0093697A3 (en
EP0093697A2 (en
Inventor
Heinz Witschi
Peter Fankhauser
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FANKHAUSER, PETER
WITSCHI, HEINZ
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Individual
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Publication date
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Priority to AT83810187T priority Critical patent/ATE20612T1/en
Publication of EP0093697A2 publication Critical patent/EP0093697A2/en
Publication of EP0093697A3 publication Critical patent/EP0093697A3/en
Application granted granted Critical
Publication of EP0093697B1 publication Critical patent/EP0093697B1/en
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    • 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)

Abstract

1. Process for producing a profiled element made of expanded metal or of sheet metal having a surface which is roughened or made partially permeable, used as non-recoverable shuttering for two stages to be concreted of a reinforced concrete structure, characterized in that, in a single continuous operation, first a flat strip of material (2) is punched in order to form, at least in one of its longitudinal margins, blind holes (12) through which reinforcing bars (13) are to be passed, whereafter the strip (2) is cut transversely into sections (11, 11') of desired length and the sections (11, 11') are profiled, several longitudinal profiles (14) running parallel to one another being formed over the entire length of each section, and that finally each section (11, 11') thus profiled is provided on one of its longitudinal edges with a rust-preventive moulding (15).

Description

Die Erfindung geht aus von einem Verfahren zur Herstellung eines aus Streckmetall oder aus Blech mit aufgerauhter oder teilweise durchlässig gemachter Oberfläche bestehenden Profilelementes, das als verlorene Abschalung für zwei zu betonierende Etappen eines Stahlbetonbauwerkes verwendet wird, und einer Anlage zur Ausführung des Verfahrens, mit einer Abwickelhaspel des Materialbandes.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.

Die Verwendung mindestens eines, aus Streckmetal oder aus Blech mit aufgerauhter oder teilweise durchlässig gemachter Oberfläche bestehenden, Löcher zum Durchführen von Armierungsstäben aufweisenden Profilelementes als verlorene Abschalung für zwei zu betonierende Etappen eines Stahlbetonbauwerkes ist aus der veröffentlichten europäischen Patentanmeldung Nr. 0039661 bekannt. Ueblicherweise werden solche Profilelemente aus einem, eine bestimmte Länge aufweisenden Streckmetalstreifen so hergestellt, dass der Streifen in einer Presse profiliert wird, wobei die Löcher vorher in den noch flachen Streifen gestanzt werden.The use of 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.

Die Profilierung der Profilelemente in einer Presse ist aber ziemlich kostspielig und zeitraubend. Die gestanzten Löcher müssen einen Durchmesser aufweisen, dem etwa der Durchmesser der durch sie durchzuführenden Bewehrungsstäbe entsprechen muss, ansonst kann der flüssige Beton der zuerst betonierten Etappe durch zu grosse Durchmesser aufweisende Löcher durchdringen. Das in der obenerwähnten europäischen Patentanmeldung beschriebene Profilelement wird lose auf eine Holzeinlage gelegt, die sich auf der Schalung über die gesamte Länge des Profilelementes erstreckt. Dies verlangt aber eine zusätzliche Arbeit auf der Baustelle.Profiling the profile elements in a press is, however, quite expensive and time-consuming. The punched holes must have a diameter which approximately corresponds to the diameter of the reinforcing bars to be carried out through them, otherwise the liquid concrete of the first concrete stage can penetrate through holes which are too large. The profile element described in the above-mentioned European patent application is placed loosely on a wooden insert which extends over the entire length of the profile element on the formwork. However, this requires additional work on the construction site.

Der im Patentanspruch 1 angegebenen Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines aus Streckmetal oder aus Blech mit aufgerauhter oder teilweise durchlässig gemachter Oberfläche bestehenden Profilelementes vorzuschlagen, das viel rationeller und schneller ausgeführt wird als die bisher bekannten Herstellungsverfahren. Das Profilelement soll auf der Baustelle ohne zusätzliche Aufarbeitung als verlorene Abschalung sofort verwendet werden können. Die Bewehrungsstäbe sollen in den gewünschten Abständen voneinander und in den gewünschten Höhen je nach Bedarf durch das Profilelement durchführbar sein, wobei das Durchdringen des Betons der ersten betonierten Etappe durch die Löcher des Profilelementes vermieden werden soll. Die Höhe der Abschalung soll je nach Wunsch fein einstellbar sein.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.

Diese Aufgaben werden bei einem Verfahren nach dem Oberbegriff des Patentanspruches 1 dadurch gelöst, dass in einem einzigen Durchlaufvorgang zuerst ein flaches Materialband gestanzt wird, um mindestens in einem seiner Längsrandbereiche Blindlöcher zu bilden, die durch Bewehrungsstäbe durchzusetzen sind, wonach das Band auf Abschnitte gewünschter Länge quer geschoren wird und die Abschnitte profiliert werden, wobei über der gesamten Länge jedes Abschnittes mehrere zueinander parallel verlaufende Längsprofile entstehen, und dass schliesslich jeder so profilierte Abschnitt an einem seiner Längsränder mit einer Rostschutzleiste versehen wird.These objects are achieved in a method according to the preamble of claim 1 by first punching a flat strip of material in a single pass in order to form blind holes at least in one of its longitudinal edge regions, which are to be penetrated by reinforcing bars, after which the strip is cut to sections of the desired length is sheared transversely and the sections are profiled, several longitudinal profiles running parallel to one another being formed over the entire length of each section, and finally each section profiled in this way is provided with an anti-rust strip on one of its longitudinal edges.

Die erfindungsgemässe Anlage zur Ausführung des Verfahrens ist gekennzeichnet durch eine Rollenstrasse zum Führen des von der Haspel abgewickelten Bandes bzw. der aus dem Band abgeschorenen Abschnitte, eine an der Rollenstrasse vorgesehene Stanzvorrichtung der Blindlöcher und eine Ablängsschere, sowie eine sich an die Rollenstrasse anschliessende, aus Druckrollen bestehende Profiliermaschine.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.

Mit Vorteil kann das Flachmaterialband Stahlblech sein, das während des Profiliervorganges mit Noppen versehen wird, um seine Oberfläche rauh und teilweise durchlässig zu machen. Zu diesem Zweck sind mindestens die zwei - in der Abwicklungsrichtung gesehen - ersten, gegeneinander liegenden Druckrollen der Profiliermaschine mit ineinander greifenden Vertiefungen und Erhebungen versehen.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. For this purpose, 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.

Die Erfindung wird nachstehend anhand der Zeichnung beispielsweise näher erläutert. Es zeigen

  • Fig. 1 eine perspektivische Ansicht einer aus einem Profilelement bestehenden Abschalung für zwei zu betonierende Etappen eines Stahlbetonbauwerkes, die von Holzkeilen abgestützt ist, wobei die erste Etappe betoniert und die Bewehrungsstäbe durch das Profilelement durchgeführt worden sind,
  • Fig. 2 eine Ansicht eines im Längsrandbereich des Profilelementes nach der Fig.1 gestanzten Blindloches, das durch drei sich sternartig kreuzende Schnitte gebildet ist,
  • Fig. 3 einen Schnitt entlang der Linie 111-111 der Fig.1,
  • Fig. 4 eine schematische Ansicht von zwei übereinander gelegten Profilelementen,
  • Fig. 5 eine perspektivische Ansicht eines Teiles des Längsrandbereiches des profilelementes nach der Fig. 4 mit Blindlöchern, die durch einen zick-zackförmig verlaufenden Schnitt gebildet sind,
  • Fig. 6 eine schematische Ansicht einer Anlage zur Herstellung von Profilelementen nach der Fig. 1 oder der Fig. 4,
  • Fig. 7 einen Schnitt zweier gegenüberliegenden Druckrollen mit Vertiefungen und Erhebungen der Profiliermaschine nach der Fig. 6 im grösseren Maßstab,
  • Fig. 8 eine perspektivische Ansicht eines mit Noppen versehenen Stahlblechabschnittes, stark vergrössert, und
  • Fig. 9 ein Teillängsschnitt des Stahlbetonbauwerkes mit dem zwischen zwei Etappen desselben eingefassten Profilelement.
The invention is explained below with reference to the drawing, for example. Show it
  • 1 is a perspective view of a formwork consisting of a profile element for two stages of a reinforced concrete structure to be concreted, which is supported by wooden wedges, the first stage being concreted and the reinforcing bars being carried out by the profile element,
  • 2 shows a view of a blind hole punched in the longitudinal edge region of the profile element according to FIG. 1, which is formed by three intersecting cuts,
  • 3 shows a section along the line 111-111 of FIG. 1,
  • 4 shows a schematic view of two profile elements placed one above the other,
  • 5 shows a perspective view of part of the longitudinal edge region of the profile element according to FIG. 4 with blind holes which are formed by a zigzag-shaped cut,
  • 6 is a schematic view of a system for producing profile elements according to FIG. 1 or FIG. 4,
  • 7 shows a section of two opposing pressure rollers with depressions and elevations of the profiling machine according to FIG. 6 on a larger scale,
  • Fig. 8 is a perspective view of a knobbed sheet steel section, greatly enlarged, and
  • Fig. 9 is a partial longitudinal section of the reinforced concrete structure with the same between two stages bordered profile element.

Zur Unterbrechung grosser Flächen eines Stahlbetonbauwerkes, wie Boden oder Decke einer Einstellhalle, werden für zwei Betonieretappen Abschalungen aus Profilelementen verwendet, die in der Fig. 1 bzw. 4 dargestellt sind. Solche Profilelemente bestehen aus Streckmetall oder Blech mit aufgerauhter oder teilweise durchlässig gemachter Oberfläche, um eine gute Verbindung der beiden Betonieretappen zu erzielen. Die Dicke des Streckmetalls oder Bleches beträgt mit Vorteil 0,6 - 1,5 mm.To interrupt large areas Reinforced concrete structure, such as the floor or ceiling of a garage, formwork made of profile elements are used for two concreting stages, which are shown in FIGS. 1 and 4. Such 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.

Die Profilelemente werden in einem einzigen Durchlaufvorgang in der Anlage nach der Fig. 7 hergestellt. Das aus Streckmetal oder Blech bestehende Flachmaterialband 2, das auf einer Abwickelhaspel 1 aufgewickelt ist, wird von dieser motorisch abgewickelt und mittels einer Schlaufensteuerung 3 überwacht. Das abgewickelte Materialband 2 wird dann von einer Rollenstrasse 4 weiter befördert. Die Rollenstrasse 4 besteht, wie üblich, aus angetriebenen und getriebenen Rollen, die jeweils paarweise gegeneinander liegen. Zwischen den Antriebs- und Treibrollen läuft das Materialband 2 bis zur Stanzvorrichtung 5. In der Stanzvorrichtung 5 werden im Längsrandbereich(en) des Materialbandes 2 gleichzeitig vier Blindlöcher 12 gestanzt. Die Stanzeinheiten können auf die jeweilige Bandbreite sowie auf den Lochabstand von 100 bis 300 mm eingestellt werden.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. In 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.

Die Blindlöcher 12 werden z. B. durch mindestens drei sich sternartig kreuzende Schnitte gebildet (siehe Fig. 2). Die drei sich sternartig kreuzenden Schnitte werden in mindestens zwei zueinander parallel verlaufenden Reihen, gegeneinander versetzt, gestanzt. Die Mindestabstände zwischen den die Blindlöcher 12 bildenden Schnittgruppen betragen 5 cm. Die Blindlöcher 12 können aber auch durch einen zick-zackförmig verlaufenden Schnitt gebildet werden, der in verschiedenen Richtungen liegt (siehe Fig. 5). Es sind auch andere Ausführungsformen der Blindlöcher denkbar.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.

Nach dem Stanzen wird das Materialband 2 einer Ablängschere 6 zugeführt. Hier wird das Materialband 2 auf Abschnitte 11, 11' gewünschter Länge quer geschoren. Die Länge der Abschnitte kann an einem digitalen Meßsystem von 800 bis 2500 mm eingestellt werden. Für den Stanz- und Schervorgang wird das Materialband 2 kurzzeitig angehalten.After punching, the material strip 2 is fed to a cutting shear 6. Here 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.

Nach dem Abscheren werden die Abschnitte 11, 11, mit einer höheren Geschwindigkeit (ca. 8 m/min) der Profiliermaschine 7 zugeführt. Die ersten drei Paare der gegeineinanderliegenden Druckrollen 9 (siehe die Fig. 6) sind mit Vertiefungen 16 und Erhebungen 17 versehen, die ineinandergreifen. Die zwischen diesen Druckrollen 9 verlaufenden Blechabschnitte 11, 11' werden mittels dieser Druckrollen 9 mit Noppen versehen, um ihre Oberflächen rauh und für den plastischen Beton teilweise durchlässig zu machen (siehe Fig. 8). Durch die weiteren, gegeneinander liegenden Druckrollen 8 der Profiliermaschine 7 werden stufenweise Längsprofile 14 gebildet. Die Längsprofile 14 können die Form von Längszacken oder Längswellen haben, die sich über die gesamte Länge jedes Abschnittes 11, 11' erstrecken. Wenn das Materialband 2 aus Streckmetal besteht, werden die ersten Druckrollen 9 abgestellt. Mit 10 sind Auslaufrollen der Anlage bezeichnet.After shearing, 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 (see FIG. 6) 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.

Die Arbeitsgeschwindigkeit der Anlage, d. h., die effektiv produzierte Menge der Profilelemente, ist von der Länge der Abschnitte 11, 11' und vom Abstand der Blindlöcher 12 voneinander abhängig. Bei einer Abschnittlänge von 830 mm und einem Lochabstand von 100 mm beträgt die Arbeitsgeschwindigkeit ca. 2,5 m/min., bei 2500 mm Abschnittlänge und 300 mm Lochabstand ergibt sich eine Geschwindigkeit von ca. 4 m/min.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.

Die Profilelemente können in zwei Ausführungsformen hergestellt werden, und zwar einer Ausführungsform nach der Fig. 1 mit zwei gleichen Längsrändern 11 und ihnen angeschlossenen Bereichen mit Blindlöchern 12 oder einer Ausführungsform nach der Fig. 4, die nur einen Längsrand 11 a mit anschliessendem Längsrandbereich mit Blindlöchern 12 aufweist, welcher Längsbereich mit einer Versteifungsrippe 22 versehen ist. Der andere Längsrand dieser Ausführungsform ist durch eine Längszacke oder eine Längswelle 14 gebildet.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.

Der eine Längsrand 11 jedes Profilelementes ist mit einer Rostschutzleiste 15 versehen. Vorzugsweise besteht diese Rostschutzleiste 15 aus Kunststoff. Sie kann auf den Längsrand 11 a durch Eintauchen desselben in eine Kunststofflösung aufgetragen werden oder sie kann als fertige Schiene auf den Längsrand im Herstellungswerk aufgeschoben werden.One longitudinal edge 11 of 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.

Das Profilelement (Abschnitt 11, 11'), das als verlorene Abschalung für zwei zu betonierende Etappen eines Stahlbetonbauwerkes verwendet wird, wird vor dem Betonieren der ersten Etappe mit der Rostschutzleiste 15 auf eine üblicherweise aus Holz bestehende Schalung 20 gelegt und auf einer Seite, wo die zweite Etappe betoniert wird, von mehreren Holzkeilen 18 abgestützt. Die Holzkeile 18 werden am Profilelement und an der Schalung 20 mittels Befestigungsmittel 19 festgehalten. Dann werden die Bewehrungsstäbe 13 durch die gewählten Blindlöcher 12 in den gewünschten Abständden und Höhen durchgesetzt. Nach dem Betonieren der ersten Etappe 21 (siehe Fig. 1) werden die Holzkeile 18 von dem bzw. den Profilelementen entfernt und können weiter verwendet werden. Nach dem Aushärten des Betons der ersten Etappe 21 wird die zweite Etappe des Bauwerkes betoniert. Nach dem vollendeten Betonieren der zweiten Etappe wird das Profilelement bzw. die Profilelemente nicht entfernt; somit wird eine verlorene Abschalung geschaffen. Durch die profilierte Stirnfläche der ersten Etappe wird eine einwandfreie Verzahnung der zweiten Etappe mit der ersten erzielt.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. Then the reinforcement bars 13 are pushed through the chosen blind holes 12 at the desired distances and heights. After concreting the first stage 21 (see FIG. 1), the wooden wedges 18 are removed from the profile element or elements and can be used further. After the concrete of the first stage 21 has hardened, the second stage of the structure is concreted. After the second stage has been 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.

Die von den ersten Druckrollen 9 der Profiliermaschine 7 in das Stahlblech eingeprägten Noppen 23 stehen auf der einen und der anderen Seite des Abschnittes 11, 11' abwechselnd vor. Durch seitlich der vorstehenden Noppen 23 entstandene schlitzartige Durchbrechungen 24 im Stahlblech kann der plastische Beton teilweise durchdringen und sich an den Noppen 23 beiderseits festhalten. Somit wird eine einwandfreie Verzahnung der beiden betonierten Etappen 21, 25 des Stahlbetonbauwerkes erreicht (siehe die Fig. 8 und 9).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).

Die Profilelemente können ohne gegenseitige Verbindung aufeinander und nebeneinander gelegt werden, wobei sie nur an den Holzkeilen 18 mittels Befestigungsmittel 19 gehalten werden. Bei der Ausführungsform der Profilelemente nach der Fig. 4, sind zwei Profilelemente so aufeinander gelegt, dass ihre Längsprofile 14 ineinanderfallen. Somit kann die Höhe der Abschalung in einem ziemlich grossen Bereich stufenweise und fein verändert und eingestellt werden. Mit Vorteil ist der Durchmesser der Blindlöcher 12 22 mm. Bei diesem Durchmesser können Bewehrungsstäbe eines Durchmessers von 6 - 30 mm verwendet werden.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. In the embodiment of the profile elements according to FIG. 4, 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.

Die Armierungsstäbe, deren Durchmesser grösser ist als derjenige des Blindloches 12, könnnen auch durch die Löcher durchgestossen werden, indem sie die Lochwand teilweise aufreissen.The reinforcing bars, the diameter of which is larger than that of the blind hole 12, can also be pierced through the holes by partially tearing open the hole wall.

Die im oben beschriebenen Verfahren und in der oben beschriebenen Anlage hergestellten Profilelemente sind auf der Baustelle viel praktischer als die bekannten Profilelemente, weil sie keine weitere Bearbeitung benötigen. Auch der Preis solcher Profilelemente ist wesentlich günstiger als derjenige der bekannten Profilelemente, weil die Herstellungskosten stark herabgesetzt sind.The 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.

Claims (8)

1. Process for producing a profiled element made of expanded metal or of sheet metal having a surface which is roughened or made partially permeable, used as non-recoverable shuttering for two stages to be concreted of a reinforced concrete structure, characterized in that, in a single continuous operation, first a flat strip of material (2) is punched in order to form, at least in one of its longitudinal margins, blind holes (12) through which reinforcing bars (13) are to be passed, whereafter the strip (2) is cut transversely into sections (11, 11') of desired length and the sections (11, 11') are profiled, several longitudinal profiles (14) running parallel to one another being formed over the entire length of each section, and that finally each section (11, 11') thus profiled is provided on one of its longitudinal edges with a rust-preventive moulding (15).
2. Process according to patent claim 1, characterized in that the flat strip of material (2) is sheet steel which, during the profiling operation, is also provided with nubs (23) in order to make its surface rough and partially permeable.
3. Process according to patent claim 1, characterized in that the blind holes (12) are each formed by at least three cuts intersecting starlike, which cuts are punched in at least two rows running parallel to one another but offset with respect to each other and spaced at a minimum of 5 cm from one another.
4. Process according to patent claim 1, characterized in that the blind holes (12) are each formed by a zigzag-running cut which lies in various directions.
5. Process according to patent claim 1, characterized in that the longitudinal profiles (14) are formed as serrations or undulations in rotary press operation.
6. Process according to patent claim 1, characterized in that the rust-preventive moulding (15) is applied to one of the longitudinal edges of each profiled section by dipping the same in a plastics solution.
7. Installation for carrying out the process according to patent claim 1, having a wind-off reel (1) of the strip of material (2), characterized by a roller train (4) for conveying the strip (2) wound off from the reel (1) or the sections (11, 11') cut off out of the strip, a punching device (5) of the blind holes (12) provided for on the roller train (4), and length-cutting shears (6), as well as a profiling machine (7) adjoining the roller train (4) and having pressure rolls (8, 9).
8. Installation according to patent claim 7, characterized in that at least the first two - viewed in the winding-off direction-oppositely situated pressure rolls (9) of the profiling machine (7) are provided with meshing depressions (16) and elevations (17).
EP83810187A 1982-05-04 1983-05-03 Method and apparatus for manufacturing a structural element for use as a permanent shuttering Expired EP0093697B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83810187T ATE20612T1 (en) 1982-05-04 1983-05-03 PROCESS AND PLANT FOR THE MANUFACTURE OF A PROFILE ELEMENT USABLE AS PERMANENT FORMWORK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2745/82A CH655872A5 (en) 1982-05-04 1982-05-04 METHOD AND SYSTEM FOR PRODUCING A PROFILE ELEMENT TO BE USED AS LOST SHUTTERING.
CH2745/82 1982-05-04

Publications (3)

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

Family

ID=4240654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810187A Expired EP0093697B1 (en) 1982-05-04 1983-05-03 Method and apparatus for manufacturing a structural element for use as a permanent shuttering

Country Status (5)

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EP (1) EP0093697B1 (en)
AT (1) ATE20612T1 (en)
CA (1) CA1218267A (en)
CH (1) CH655872A5 (en)
DE (1) DE3364364D1 (en)

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DE8711086U1 (en) * 1987-08-14 1987-10-01 Döllen, Heinz von, 5840 Schwerte Formwork plank
FR2627524B1 (en) * 1988-02-22 1991-06-21 Ballot Batiment Travaux Public PROCESS AND DEVICE FOR THE CONTINUOUS REALIZATION OF CONCRETE STRUCTURES
EP0343913B1 (en) * 1988-05-25 1994-01-26 Cenefill Pty Ltd Methods of construction
EP0519146B1 (en) * 1991-06-17 1995-01-18 Brefeba N.V. Stop-end shuttering
EP0586867A1 (en) * 1992-09-08 1994-03-16 Peca-Verbundtechnik Gmbh End shuttering
DE9406373U1 (en) * 1994-04-16 1994-06-30 DSD Dillinger Stahlbau GmbH, 66386 St Ingbert Formwork sheet
DE29602264U1 (en) 1996-02-09 1997-06-05 Fischer, Willibald, 84130 Dingolfing Support part
DE19722449A1 (en) * 1997-05-28 1998-12-03 Rene P Schmid Shuttering element
FR2784125B1 (en) * 1998-10-02 2007-06-22 Euromat France DEVICE AND METHOD FOR JOINTS FOR CONSTRUCTING CONCRETE SLABS
GB0409216D0 (en) * 2004-04-24 2004-05-26 Metaform Ltd Multi purpose screed rail, formwork and joint protection mechanism
EP1970501B1 (en) 2007-03-16 2011-11-30 Mägert Bautechnik AG Method and device for setting a stop end to a reinforced slab-like concrete element
ITVI20070181A1 (en) * 2007-06-22 2008-12-23 Stefano Boggian BRACKET FOR ARMORING TABLES
AU2008255272B2 (en) * 2007-12-13 2015-07-09 Illinois Tool Works Inc. Improvements in and in relation to concrete form work
CN102172711A (en) * 2010-12-17 2011-09-07 中色奥博特铜铝业有限公司 Packaging belt producing machine
NL2006645C2 (en) * 2011-04-20 2012-10-23 Dycore B V FLOOR ELEMENT WITH SHARED RANDBOX.
CN103029204B (en) * 2012-12-26 2014-12-10 江苏中南建筑产业集团有限责任公司 Modularized side form for prefabricating superimposed sheet
PT107373A (en) * 2013-12-19 2015-06-19 Afonso Moreira Serro LEVELING TELESCOPIC COVERAGE FOR PAVING WITH LINEAR OR AXIAL AND RADIAL GEOMETRIC ALIGNMENT
US11359392B2 (en) * 2019-08-05 2022-06-14 Ccs Contractor Equipment & Supply, Llc Form bracket for concrete panel form

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Publication number Priority date Publication date Assignee Title
DE1914302A1 (en) * 1969-03-20 1970-10-08 Uk Nii Metallov Rolled shaped strip with stiffening-ribs
CH646751A5 (en) * 1980-05-01 1984-12-14 Pawe Ag USE OF PROFILE ELEMENTS OF STRETCH METAL OR SHEET WITH Roughened SURFACE IN CONCRETE CONSTRUCTION OF A CONSTRUCTION.

Also Published As

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

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