EP0880626B1 - Element de coffrage - Google Patents

Element de coffrage Download PDF

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Publication number
EP0880626B1
EP0880626B1 EP97902262A EP97902262A EP0880626B1 EP 0880626 B1 EP0880626 B1 EP 0880626B1 EP 97902262 A EP97902262 A EP 97902262A EP 97902262 A EP97902262 A EP 97902262A EP 0880626 B1 EP0880626 B1 EP 0880626B1
Authority
EP
European Patent Office
Prior art keywords
strips
expanded metal
solid sheet
quiver
formwork element
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 - Lifetime
Application number
EP97902262A
Other languages
German (de)
English (en)
Other versions
EP0880626A1 (fr
Inventor
Sven Obernolte
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
Application filed by Individual filed Critical Individual
Publication of EP0880626A1 publication Critical patent/EP0880626A1/fr
Application granted granted Critical
Publication of EP0880626B1 publication Critical patent/EP0880626B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04B2/8658—Walls made by casting, pouring, or tamping in situ made in permanent forms using wire netting, a lattice or the like as form leaves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/30—Columns; Pillars; Struts
    • E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders

Definitions

  • the invention relates to a formwork element in the form of a quiver with a Openwork metal wall panel.
  • Such formwork elements are used for lost concrete formwork used, for example as quiver formwork, such as is described in DE-U-94 06 373.
  • the wall panel is formed by preferably profiled perforated plate.
  • EP-A-0 560 308 for example, the wall panel made of expanded metal.
  • Expanded metal as such is less expensive than Perforated sheet and also has the advantage that better interlocking between the blackboard and the concrete is reached.
  • the disadvantage is that blackboards, which are made entirely of expanded metal and have only low inherent rigidity and therefore have to be additionally stiffened. Also through profiling the expanded metal panels can hardly achieve the required rigidity. For this reason, the expanded metal panels in the known formwork elements stiffened by welded metal round rods. However, this leads at a considerably higher production cost and thus at higher costs.
  • a steel / concrete composite structure in which the Steel element is a profiled plate, which is made of alternating strips of solid sheet metal and expanded metal.
  • the solid sheet strips are rib-like Stiffening profiles shaped that the plate in the direction transverse to the direction of travel the strips give a high degree of flexural rigidity.
  • the object of the invention is to provide a formwork element, in particular in the form of a quiver for quiver formwork, which is inexpensive to manufacture. results in good interlocking with the concrete and is still very stable.
  • the wall panel of the formwork element is replaced by an alternating one Follow parallel, one-piece strips Expanded metal and solid sheet formed.
  • Expanded metal sheets are usually produced in one cycle working machine, which has a series of slots in it every working cycle Sheet metal punches and the material then stretches so that a row of stitches is formed becomes. The material is then transported on until the next cycle begins.
  • the wall panel of the formwork element according to the invention can just create yourself, each time after a certain number of steps the material is transported further without punching and stretching, so that you get a solid sheet strip in the desired width. With that The panel made of expanded metal and solid sheet run as a result perpendicular to the direction of stretch of the expanded metal.
  • a wall panel profiled in the running direction of the strips can be used with a suitable one Select the profile in the direction perpendicular to the running direction.
  • the wall panel has an approximately trapezoidal profile which the solid sheet strips are not or only weakly profiled and the base sides of the trapezoids form, while the expanded metal the oblique flanks of the Trapeze forms. If the blackboard is then bent perpendicular to the direction of the profile or is folded, the solid sheet strips only set one relative to the deformation little resistance.
  • the inside with respect to the bending curvature Solid sheet strips are subjected to pressure when bending or edging and dodge outwards so that they are bent relatively sharply, while the outer solid sheet strips are bent more gently.
  • the Expanded metal allows the balance between the different deformations the solid sheet strip. In this way, the blackboard can be added to the bend quiver according to the invention.
  • the quiver points out that recesses must be provided on the bending lines high stability at the edges. It is therefore easily possible To bring quiver into a flat state for transportation purposes by diamond-shaped pressed together from two diagonally opposite corners becomes. At the construction site, the quiver is then loaded back into the ready-to-use Reshape condition. This process can even be repeated can be repeated without causing excessive material fatigue comes at the bend lines.
  • the formwork element shown in Figure 1 has the shape of a flat wall panel 10, which is made in one piece from a single-layer steel sheet, the one Has thickness of 1 mm, for example.
  • the sheet is slotted in sections and stretched so that several parallel strips 12 are formed from solid sheet metal be, by the intermediate strips 14 of expanded metal with each other are connected.
  • the direction of stretch of the expanded metal is perpendicular to Direction of the strips 12, 14.
  • the strips 12, 14 have approximately the same width.
  • the Width ratio can be varied depending on the stability requirements.
  • the expanded metal strips should each have a width of at least have three or four stitches.
  • Figure 2 shows a formwork element in the form of a quiver 16, the walls 18 made in one piece from a wall panel 10 of the type shown in FIG are.
  • the wall panel 10 is first in the direction of the stripes 12, 14 profiled, as shown for example in Figure 3 or 4.
  • the Solid sheet then forms two sets alternately and approximately strips 12, 12 'which lie in two offset planes and which form the combs and valleys of the profile form, while the strips 14 of expanded metal in the essentially form the profile flanks.
  • the wall panel thus profiled is then bent at four bending lines 20 running perpendicular to the running direction of the profile, and the free ends are welded together so that one receives the quiver shown in Figure 2, which has the shape of a square or rectangular column.
  • the strips 12, which are further out with respect to the quiver, are gently rounded when bending at the bending lines 20. Through these curves the stability of the quiver against the external pressure of the concrete increased considerably.
  • the strips 12 lying further inside become on the other hand, it is subjected to pressure at the bending zones and is put under Formation of relatively sharp bends 22 to the outside.
  • the strips 12 ' lie thus in the surface of the walls 18 with respect to the strips 12 inwards back, but are slightly curved outwards towards the bending lines 20, so that the kinks 22 substantially with the rounded areas the strip 12 are flush. This way, essentially straight continuous bending lines formed, which is a relatively slight deformation allow the material.
  • the different deformations of the Strips 12 and 12 ' are relative in the area of the bending lines easily stretchable and compressible expanded metal 14 balanced.
  • the profile of the wall panel 10 or the walls 18 of the quiver 16 can be varied Way can be varied. While in the example shown in Figure 3 the strips 12, 12 'are flat, it can be useful for reasons of stability be to easily profile these full metal strips.
  • Figure 4 shows as an example a slightly rounded profile of the strips 12, 12 '. You can choose these strips also have a triangular or trapezoidal profile, so that they are also parts of the mainly formed by the expanded metal Form profile flanks.
  • the profile shown in FIG. 5 can also be used for the walls 18 be used.
  • the strips are 14 parts of a continuous Expanded metal plate, onto which individual strips 12, 12 'made of solid sheet metal are welded are.
  • the strips 12, 12 ' can be profiled or non-profiled. In the example shown, they are alternately on opposite sides of the Expanded metal panel attached. However, you can also on the same side of the Expanded metal plate can be arranged.
  • the strips of full metal are first laid flat on the flat expanded metal panel welded, and then the expanded metal and the solid sheet is profiled in one operation. The profile can then look similar Way as the profiles of Figures 3 and 4 bent to the quiver 16 become.
  • a bottom, not shown, in the quiver 16 insert likewise from a blackboard with a profile of the figures 3 to 5 shown type can be provided.
  • the floor can face two Intervene in the profile of the walls 18 or on bend inwards bent at the lower ends of the walls 18. Due to the breakthroughs formed by the expanded metal Soil desirably permeable to water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Bipolar Transistors (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Claims (2)

  1. Élément de coffrage en forme de carquois (16) dont les parois (18) sont fabriquées en métal ajouré et présentent un profilage périphérique, caractérisé en ce que les parois comportent plusieurs bandes périphériques (12, 12') en tôle pleine qui sont disposées parallèlement à distance les unes des autres et qui sont reliées entre elles par des bandes (14) en métal déployé et forment les sommets et les creux du profilage périphérique.
  2. Élément de coffrage selon la revendication 2, caractérisé en ce que les parois (18) du carquois sont fabriquées d'une seule pièce en formant des lignes de cintrage (20), et en ce que les bandes (12) en tôle pleine situées davantage à l'extérieur sont doucement arrondies au niveau des lignes de cintrage (20), tandis que les bandes (12') en tôle pleine situées davantage à l'intérieur sont légèrement recourbées vers l'extérieur en direction des lignes de cintrage (20) et forment une brisure vive qui se trouve approximativement, dans l'alignement des bandes doucement arrondies (12), de sorte que le carquois peut être replié en forme de losange au niveau de deux lignes de cintrage (20) opposées en diagonale.
EP97902262A 1996-02-12 1997-01-30 Element de coffrage Expired - Lifetime EP0880626B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19605079A DE19605079C1 (de) 1996-02-12 1996-02-12 Schalungselement
DE19605079 1996-02-12
PCT/EP1997/000399 WO1997030239A1 (fr) 1996-02-12 1997-01-30 Element de coffrage

Publications (2)

Publication Number Publication Date
EP0880626A1 EP0880626A1 (fr) 1998-12-02
EP0880626B1 true EP0880626B1 (fr) 2000-09-06

Family

ID=7785176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97902262A Expired - Lifetime EP0880626B1 (fr) 1996-02-12 1997-01-30 Element de coffrage

Country Status (4)

Country Link
EP (1) EP0880626B1 (fr)
AT (1) ATE196177T1 (fr)
DE (2) DE19605079C1 (fr)
WO (1) WO1997030239A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011050999U1 (de) 2011-08-16 2012-11-23 Sven Obernolte Bausatz für eine Köcherschalung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2884500A (en) * 1998-11-09 2000-05-29 Steven Alan Wolfowitz Building element
DE20015872U1 (de) 2000-09-13 2001-04-26 Hagedorn, Claudia, 49214 Bad Rothenfelde Aussparungskasten aus Gummigranulat
DE20303851U1 (de) 2003-03-11 2003-05-22 MSL Mathieu Schalungssysteme und Lufttechnische Komponenten GmbH, 66625 Nohfelden Köcherschalung
IT1401431B1 (it) * 2010-08-03 2013-07-26 Martigli Sistema di casseri a perdere con cui comporre casseforme modulari per la costruzione di pareti in calcestruzzo di forma complessa.
DE102015223112A1 (de) * 2015-11-23 2017-05-24 Mako Gmbh & Co. Kg Schalungstechnik Schalungselement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB441145A (en) * 1934-07-16 1936-01-14 George Nether Burgess Improvements in and connected with the erection of reinforced concrete structures
DE9005482U1 (de) * 1990-05-14 1991-09-12 Fischer, Willibald, 8312 Dingolfing Schalungsplatte
US5081814A (en) * 1990-10-22 1992-01-21 Alabama Metal Industries Lath panel and method of manufacture
DE9203276U1 (de) * 1992-03-11 1993-07-15 Peca-Verbundtechnik GmbH, 8312 Dingolfing Schalung
FR2712016B1 (fr) * 1993-11-02 1996-01-19 Coffratherm Ste Civile Invente Procédé de fabrication de parois de coffrage pour bâtiment et chaîne de fabrication s'y rapportant.
DE9406373U1 (de) * 1994-04-16 1994-06-30 DSD Dillinger Stahlbau GmbH, 66386 St Ingbert Schalungsblech
DE29500514U1 (de) * 1995-01-14 1996-05-09 Obernolte, Sven, 32545 Bad Oeynhausen Absperrelement
DE29500515U1 (de) * 1995-01-14 1996-05-09 Obernolte, Sven, 32545 Bad Oeynhausen Schalungselement
DE29507162U1 (de) * 1995-04-28 1995-07-06 Lu, Sin-Yang, Guam Miao Hsiang, Tainan Wandkonstruktion für Gebäude

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011050999U1 (de) 2011-08-16 2012-11-23 Sven Obernolte Bausatz für eine Köcherschalung

Also Published As

Publication number Publication date
DE19605079C1 (de) 1997-09-18
EP0880626A1 (fr) 1998-12-02
WO1997030239A1 (fr) 1997-08-21
DE59702313D1 (de) 2000-10-12
ATE196177T1 (de) 2000-09-15

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