EP0694106A1 - Shuttering plate - Google Patents
Shuttering plateInfo
- Publication number
- EP0694106A1 EP0694106A1 EP95910403A EP95910403A EP0694106A1 EP 0694106 A1 EP0694106 A1 EP 0694106A1 EP 95910403 A EP95910403 A EP 95910403A EP 95910403 A EP95910403 A EP 95910403A EP 0694106 A1 EP0694106 A1 EP 0694106A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- net
- characterized gekennzeich
- formwork
- panel according
- 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- Withdrawn
Links
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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/04—Forming boards or similar elements the form surface being of wood
-
- 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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
-
- 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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/05—Forming boards or similar elements the form surface being of plastics
Definitions
- building parts such as foundations, columns, columns, walls, ceilings and the like are often poured from concrete into a formwork on site.
- formwork is erected on the construction site, into which the concrete is poured and which is dismantled as soon as the concrete has achieved sufficient strength. It is important that the formwork is not glued to the concrete and easily detaches from it.
- frame panel formwork is known from practice, which is made up of individual, usually rectangular formwork panels.
- the formwork panels are stable, rigid panels that hardly bend under the weight of the pulpy concrete.
- Formwork panels of various sizes are available. The formwork panels of this range are used again and again, ie a single formwork panel is used again to set up a circuit after the formwork has been dismantled and any cleaning required.
- Such a rectangular formwork panel has a rigid frame which is made of steel box profiles.
- a frame braced with a box section truss defines the outer, rectangular outline of the frame.
- a support surface is defined both by the frame and by the struts forming the framework, onto which an approximately eighteen millimeter thick multiplex plate is riveted with a large number of rivets.
- the multiplex board consists of several layers of veneer glued crosswise and is provided on both sides with a plastic coating. The plastic layer serves to prevent a connection between the hardening concrete and the wood of the multiplex plate.
- the multiplex plate has through holes which are penetrated by rivets. To accommodate the rivet heads, the through bores are countersunk on the side remote from the frame.
- the rivets are exposed on the side in contact with the concrete.
- the plastic coating is partially removed by countersinking, so that the wood of the multiplex plate is at least revealed with some fibers between the plastic coating and the respective rivet head.
- the wood can stick to the still damp concrete.
- the rivet head and the parts of the multiplex plate surrounding it can form a positive connection with the hardening concrete.
- each rivet gives an impression on the concrete, which has to be post-treated accordingly or at least is not easily suitable as an exposed concrete. Because of the considerable number of rivets, manual rework is time-consuming and costly. It can also happen that the prints are not completely invisible.
- the plate means lying on the support surface of the frame is positively connected to the frame, that is to say riveted to it, for example.
- the positive connection results in a secure and permanent hold of the plate means on the frame.
- the plate means can be both a plate that takes up the entire bearing surface and a plurality of plates or strips lying next to one another. In any case, however, the plate means forms a holder for the coated plate facing the concrete. This is connected to the surface of the plate and has an uninterrupted coating on the frame opposite side, ie the side facing the concrete, to which the concrete does not adhere. In this way, a cast concrete part can be easily removed without excessive forces being required to separate the formwork sheet from the concrete.
- the surface quality of the concrete is improved. This can be used directly and without the rework required in the prior art as a visible concrete.
- the formwork panel and the panel means can be curved to form curved surfaces, it is advantageous for use in a modular system if the panel means is flat.
- a plate connected to the plate means then defines with its coating a flat surface that can be used to form flat concrete surfaces, as is common in buildings.
- the plate means can be a single, ie continuous plate. This ensures that a flat connection surface is created without jumps and dislocations for the plate to be connected to the plate means.
- the plate means can also comprise a plurality of plates, for example in the form of strips, which are arranged next to one another with more or less large gaps. With this type of construction, the use of possibly existing or existing smaller plate sections for the plate means is possible.
- a multiplex board with several layers of cross-glued wood veneer is particularly suitable as the board medium. This has sufficient strength to withstand the bending stresses that occur. In addition, it is sufficiently durable and somewhat insensitive to moisture. In any case, it does not warp or bulge when the moisture content changes. This enables even concrete surfaces to be achieved without dents.
- the formwork panels are not too heavy, so that they are easy to handle.
- the formwork panels must be kept clean. Concrete splashes that can never be avoided and can get onto the back of the formwork panel can then be easily removed.
- the non-stick coating should be impermeable to water in order to protect the plate agent from the effects of moisture and moisture. This is particularly important if the plate means is a multiplex plate.
- the water-impermeable non-stick coating also reacts to the usually strongly basic protected concrete.
- a plastic layer is particularly suitable as a non-stick coating.
- the plate means can also be designed in such a way that it only partially covers the contact surface, and in particular if it consists of individual strips or plates, it has gaps. However, the plate can be particularly well connected to the plate means if the plate means extends over the entire contact surface.
- the connecting surface available for connection to the plate is thus of maximum size, namely the same size as the contact surface.
- the plate means can be attached to the frame by rivets.
- the rivets in particular result in a tensile connection, which is important when stripping cast concrete parts.
- the rivets should be dimensioned and attached so that their heads do not protrude beyond the plate means.
- the panel to be fastened on the panel means can also be a multiplex panel which, for example, consists of several layers of veneer glued crosswise to one another. If this plate also corresponds in thickness to the plate means, the same material can be used for the plate means and the plate. This applies in particular if both the plate means and the plate are each provided with a one-sided coating.
- Material connections are particularly suitable for the flat connection between the plate means and the plate. Such can be formed by gluing the plate to the plate means after it has been riveted onto the frame. A permanent and firm connection between the plate means and to ensure the plate, the plate should be glued to the entire surface of the plate. Adhesion of the slab to the slab means has increased the tensile loads that occur when the concrete is stripped, which are determined by the adhesion of the slab coating to the concrete. On the other hand, when pouring the concrete, the area of adhesive is only subjected to pressure, which it easily withstands.
- An adhesive is particularly suitable as an adhesive for connecting the plate means to the plate, which requires no pressure or only a small pressure for curing. When using such an adhesive, no special presses or similar means are required to press the relatively large-area plate onto the plate means. If an adhesive is used which has a good filling capacity, i.e. which shrinks little or not when glued, a closed glue joint is achieved, even if it is relatively thick, which means that its thickness can be in the range of one millimeter.
- a well-suited adhesive is usually a two-component adhesive made from synthetic resin. Since this does not depend on the evaporation of solvents during curing, large-area plates in particular, on which solvents could not or only poorly escape, can be bonded well.
- the frame has a rectangular base frame in which a plurality of box profiles dividing the base frame are arranged. These box profiles form a framework that stiffens the base frame and holds the plate means at many points that are close together.
- the fixation of the plate means is particularly good if both the frame and the box profiles have support surfaces lying in a common plane, which determine the contact surfaces.
- the plate means is then held not only at certain points, but also in relation to the force that occurs when concrete is being shuttered and directed towards the frame.
- the sections of the plate and the plate means which are subjected to a bending stress and span two support points are relatively small, so that the plate hardly bends.
- the frame can have a peripheral edge which is essentially at right angles to the contact surface. This prevents concrete from joining to the end faces of the plate.
- the plate is particularly well protected if the edge has a height which is greater than the sum of the thickness of the plate means and the thickness of the plate. The edge then protrudes beyond the plate.
- Fig. 1 a Schalplatte in perspective view
- FIG. 2 shows the formwork panel according to FIG. 1 in a partial perspective illustration, on a different scale.
- a rectangular formwork panel 1 is shown as it is used for the construction of frame panel formwork.
- the frame panel formwork consists of several formwork panels 1 of the same or different size, as well as further fastening and support parts, not shown.
- the formwork panel 1 has a frame 2 which is provided with a formwork surface 3 which takes up the entire rectangular area and faces the concrete to be cast.
- the frame 2 is bordered by a rectangular frame 4, which consists of welded box profiles made of steel with a uniform cross-section.
- the frame 4 is stiffened in a lattice-like manner with a plurality of struts 5, which consist of box profiles each having a rectangular cross section.
- a stronger post 6 is provided at a distance and parallel to the longer sides of the frame 2.
- the struts 5 are provided between the post 6 and the frame 4 at right angles to the post 6 and parallel and at smaller distances from one another.
- the frame 4 is constructed from a box profile which has a circumferential bead 7 on its outer edge.
- the bead 7 is adjoined by a side face 8 lying parallel to the formwork face 3, which lies in one plane with corresponding side faces 9 of the struts 5.
- the side surfaces 8, 9 thus define a contact surface 11 for the formwork surface 3.
- the formwork surface 3 is constructed in two layers.
- a multiplex plate 12 is provided directly on the frame 4, that is to say on the support surface 11, which is glued crosswise together from five layers Veneer exists.
- the multiplex plate 12 is rectangular and corresponds in size to the contact surface 11 and is approximately nine millimeters thick. There is only a narrow gap between the edge 7 and the multiplex plate 12.
- the multiplex plate 12 is provided with an essentially waterproof plastic layer which acts as a non-stick coating.
- the multiplex plate 12 is fastened to the frame 4 and to the struts 5 and the post 6 by means of a plurality of rivets 13 spaced apart from one another.
- the rivets 13 are made of aluminum and are arranged at not too great distances of about fifteen to twenty centimeters from each other.
- the rivets 13 reach through both the multiplex plate 12 and the corresponding side surface 8, 9 of the frame 4 or the struts 5 and the post 6.
- the setting heads of the rivets 13 lie on the multiplex plate 12 and are pressed so far into it that they do not protrude beyond the multiplex plate 12.
- the multiplex plate 12 thus offers a flat surface for fastening a further multiplex plate 14.
- any other fastening means can be used which have a head for holding the multiplex plate 12 or another plate means.
- Such fasteners are, for example, self-tapping screws.
- the further multiplex plate 14 is glued to the multiplex plate 12 by means of a two-component adhesive.
- This multiplex board 14 also consists of five layers of cross-laminated veneer and is about nine millimeters thick. On its side facing away from the frame 2, it is uninterruptedly coated with a plastic layer 15 which is impermeable to water and does not adhere to moist or hardening concrete.
- the multiplex plate 14 covers all rivet heads.
- the anti- Adhesive coating defined smooth and closed surface. The wood from which the multiplex plate 14 is made is completely covered by the non-stick coating and therefore cannot come into contact with the concrete.
- the multiplex plate 12 and the multiplex plate 14 consist of the same plywood material which is only coated on one side. In comparison to the material used in the prior art, which is coated on both sides, this can be procured considerably more cost-effectively.
- the two-component adhesive used to bond the multiplex plate 14 to the multiplex plate 12 is an adhesive which cures without solvent evaporation, which also fills thicker adhesive joints well and completely without shrinking and which results in good adhesive strength.
- the total thickness of the multiplex plates 12, 14 with the adhesive joint is somewhat less than the height of the bead 7 above the contact surface 11.
- the bead 7 thus projects somewhat beyond the plastic layer 15.
- the multiplex plate 14 abuts the bead 7 with a narrow gap, so that the formwork plate 1 has a flat surface on the side facing the concrete, and the multiplex plates 12, 14 of the formwork surface 3 also on their end faces are protected against contact with the concrete.
- the formwork panel 1 When the formwork panel 1 is used in formwork construction and when pouring concrete, the formwork panel 1 described so far is assembled individually or in association with several formwork panels of similar or similar design, the formwork panels 1 with the coated multiplex panel 14 the concrete part to be cast has and is aligned accordingly.
- the formwork panel 1 is then supported and fixed on its frame 2. When pouring the concrete, it presses due to its heavy pressure onto the multiplex plate 14, which derives the pressure via the multiplex plate 12 into the frame 2.
- the adhesive layer formed between the multiplex plates 12, 14 is only subjected to pressure, which it can easily withstand.
- the formwork sheet 1 When the concrete has set sufficiently, the formwork sheet 1 is removed, the plastic layer 15 becoming detached from the cast concrete body relatively easily.
- the adhesive layer formed between the multiplex plates 12, 14 is subjected to tensile stress.
- the specific tensile load of the adhesive is low, so that the formwork plate 1 easily survives the stripping undamaged.
- the uninterrupted plastic layer 15 detaches itself from the cast concrete without parts of the multiplex plate 14 sticking to the concrete. Significant wear of the formwork surface 3 and thus the entire formwork panel 1 does not occur in this process in any case.
- the formwork sheet can thus be reused very often, the life of the formwork sheet being long and increased compared to the prior art.
- the removed concrete surface is smooth and can usually be used as exposed concrete without further finishing. In particular, there are no rivet impressions or wood fibers enclosed in the concrete. Because of the elimination or the substantial restriction of the post-processing, time and costs are saved when using the formwork panels described above.
- a formwork panel 1 has a first panel 12 riveted to a rectangular base frame 2 made of steel, to which a second plastic-coated panel 14 is glued.
- the plastic layer facing the concrete is designed without interruption, so that the concrete cannot enter into connection with the plate 14.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4405012 | 1994-02-17 | ||
DE19944405012 DE4405012C1 (en) | 1994-02-17 | 1994-02-17 | Formwork panel |
PCT/DE1995/000207 WO1995022672A2 (en) | 1994-02-17 | 1995-02-17 | Shuttering plate |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0694106A1 true EP0694106A1 (en) | 1996-01-31 |
Family
ID=6510447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95910403A Withdrawn EP0694106A1 (en) | 1994-02-17 | 1995-02-17 | Shuttering plate |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0694106A1 (en) |
DE (1) | DE4405012C1 (en) |
WO (1) | WO1995022672A2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU90977B1 (en) * | 2002-10-17 | 2004-04-19 | Marc Scholtes | Formwork element and formwork system |
WO2004104325A1 (en) * | 2003-05-20 | 2004-12-02 | Valerian Markovich Sobolev | Edge profile for form panels |
DE102004050564A1 (en) * | 2004-10-15 | 2006-04-27 | Hünnebeck GmbH | Coated board |
DE102005015508B3 (en) * | 2005-04-05 | 2007-02-08 | Peri Gmbh | Concrete shuttering element has shell screwed to hollow profiled elements of support structure through screws which pass through bore holes on inside without their tips penetrating through surface of shell on concrete side |
DE102007006907B4 (en) | 2007-02-13 | 2008-11-27 | Peri Gmbh | Frame formwork systems for the formation of corners and T-junctions using frame scarf elements with centrally aligned anchor holes |
DE102011016119A1 (en) | 2011-04-05 | 2012-10-11 | Redima Ag | Rectangular plate-like formwork shell for concrete formwork element for setting concrete wall, has edge strip connected with shell over connection bar and moved or pivoted opposite to shell in response to pressing force acting on edge strip |
DE202020100159U1 (en) * | 2020-01-13 | 2021-04-14 | Peri Gmbh | Frame formwork element and formwork system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2054021C3 (en) * | 1970-11-03 | 1973-12-20 | Th. Goldschmidt Ag, 4300 Essen | Concrete formwork panel and process for its manufacture |
AT329257B (en) * | 1971-01-26 | 1976-05-10 | Oesterr Doka Schalung | WOOD PANEL |
DE3638537A1 (en) * | 1986-11-11 | 1988-05-19 | Noe Schaltechnik Kg | Shuttering panel |
DE8715502U1 (en) * | 1987-11-23 | 1988-01-28 | Peri-Werk Artur Schwörer GmbH & Co KG, 7912 Weißenhorn | Formwork panel |
DE3911301C1 (en) * | 1989-04-07 | 1990-05-03 | Peri Gmbh, 7912 Weissenhorn, De | Shuttering element |
-
1994
- 1994-02-17 DE DE19944405012 patent/DE4405012C1/en not_active Expired - Fee Related
-
1995
- 1995-02-17 WO PCT/DE1995/000207 patent/WO1995022672A2/en not_active Application Discontinuation
- 1995-02-17 EP EP95910403A patent/EP0694106A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO9522672A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO1995022672A2 (en) | 1995-08-24 |
DE4405012C1 (en) | 1995-10-05 |
WO1995022672A3 (en) | 1995-09-14 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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17P | Request for examination filed |
Effective date: 19960226 |
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17Q | First examination report despatched |
Effective date: 19961213 |
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GRAG | Despatch of communication of intention to grant |
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STAA | Information on the status of an ep patent application or granted ep patent |
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18D | Application deemed to be withdrawn |
Effective date: 19981003 |