WO2008128683A1 - Élément de coffrage - Google Patents
Élément de coffrage Download PDFInfo
- Publication number
- WO2008128683A1 WO2008128683A1 PCT/EP2008/003004 EP2008003004W WO2008128683A1 WO 2008128683 A1 WO2008128683 A1 WO 2008128683A1 EP 2008003004 W EP2008003004 W EP 2008003004W WO 2008128683 A1 WO2008128683 A1 WO 2008128683A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- grid
- element according
- mats
- shuttering element
- bars
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/02—Flat foundations without substantial excavation
-
- 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
- E04G9/06—Forming boards or similar elements the form surface being of metal
- E04G9/065—Forming boards or similar elements the form surface being of metal the form surface being of wire mesh
-
- 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
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
-
- 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
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
- E04G9/083—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up which are foldable
Definitions
- the invention relates to a formwork element with a lattice work enveloped by a film.
- Shuttering elements of this type are known from DE 38 15 870 C l and are used for example for foundation formwork.
- the lattice work is a reinforcing steel mat formed from crossed bars, which is either flat or bent or folded to a suitable formwork profile. This structural steel mat gives the formwork element the necessary mechanical strength.
- the film is a stable shrink film, for example made of polyethylene, with which the latticework is shrunk, so that the grid openings are each closed by two layers of film and thus one obtains a flat, impermeable concrete for the formwork element.
- the object of the invention is to provide a formwork element whose configuration is easier to change.
- the latticework consists of at least two separate grid mats, which are enveloped by a common film.
- the film connects the individual grid mats and at the same time serves as a hinge or joint, which allows the grid mats to be bent against each other.
- the formwork element can be delivered to save space in a flat state and then folded on site in the respectively desired configuration.
- the formwork element according to the invention for permanent formwork such as foundation formwork
- it can be achieved with the help of attached to one or more grid mats insulation layers in a simple way, a thermal and / or acoustic insulation.
- the insulating layer may consist of conventional insulating materials, such as foam polystyrene, rock wool or the like and may, for example be formed by one or more insulating panels. Since the insulating layer is located within the film and is thus protected against moisture acting from the outside, also insulating materials come into consideration, which could not previously be used for lost formwork. In particular, open or closed cell materials or low density fibrous materials having a particularly low thermal conductivity can be used.
- the formwork element and the formwork formed therefrom can be produced in a particularly simple manner.
- the mesh mats themselves may additionally be connected by a hinge.
- This joint can be formed in different ways, for example, by pushed onto the perpendicular to the hinge axis extending and aligned with each other aligned bars pieces of hose, which also prevent the ends of the bars pierce the film.
- the joint is formed in that the parallel to the hinge axis extending bars are held together by ring clips, wire rod or the like.
- the grid bars extending at right angles to the hinge axis of the one grid mat are bent over to hooks which engage around a grid bar of the other grid mat running parallel to the hinge axis.
- the hinge construction is housed protected within the film and is additionally stabilized by the film.
- Another development of the invention has the object to provide a formwork element whose dimensions can be easily adapted to the particular needs.
- the latticework consists of at least two separate, telescopically superimposed grid mats, which are enveloped by the common film.
- the shrink film which encloses both mats together, the mats are then in the state in which they together give the desired height, fixed together.
- the mats can be provisionally fixed to each other before wrapping with the shrink film with the help of Roman wire or the like.
- the vertically extending longitudinal bars of both grid mats are arranged in an identical grid and offset so far in the horizontal direction against each other that they can interlock in the overlapping area.
- the transverse rods may be arranged on opposite sides of the longitudinal bars in the two grid mats, so that they are not in the way when the two mats are pushed into each other.
- Fig. 1 shows a section through an inventive
- FIG. 2 shows the formwork element according to FIG. 1 in plan view
- FIG. 3 shows the formwork element according to Figures 1 and 2 in a folded state ..; 4 shows a formwork element according to another embodiment;
- FIG. 5 shows a section through a further formwork element according to the invention in a flat state
- FIG. 6 shows the formwork element according to FIG. 1 in a folded state
- Fig. 1 1 is a side view of another invention
- FIG. 12 shows a section through the formwork element according to FIG. 1 1;
- a formwork element is shown in a flat state in which it can be delivered to the construction site to save space.
- the formwork element has a latticework, which consists in the example shown of three separate grid mats 10, for example in the form of mild steel mats, which are formed by cross-laid metal rods 12, 14.
- the entire structure of three spaced closely spaced grid mats 10 is enveloped by a shrink film 16 which forms a joint 18 between each grid mats.
- the two foil layers may also be welded or glued to one another at the joints 18 in order to hold the lattice mats even more securely in position.
- Fig. 2 shows the formwork element according to Fig. 1 in a view from above. 1 In Fig. 3, the grid mats 10 are folded over each other to form a compact structure. This is made possible by the fact that serving as hinges 18 or hinges film sections are sufficiently wide.
- Fig. 4 shows an embodiment in which on one side of the lattice work, an insulating layer is attached, which is formed in the example shown by three separate insulation panels 20, each resting against one of the grid mats 10.
- the shrinking film 16 also forms joints 18 which allow the formwork element to be bent at these locations. In this way you get z. B. a U-shaped shuttering profile, which can be used for example for a lost foundation formwork and at the same time a thermal insulation on the inside,
- J 5 forms the outside and the bottom of the foundation.
- the relevant insulation board can also be omitted. It is also possible, two insulation panels 20 on two grid mats 10 assign to 0 that can form an L-shaped formwork profile.
- the insulation board may have any desired thickness for the purposes of thermal insulation, for example between 30 and 120 mm, and it may be made of any insulating materials, for example foam polystyrene, rock wool and the like. Instead of a rigid insulation board, a flexible insulating layer of rock wool or other suitable material can be used. Likewise, the insulating layer can also be formed from a loose bed of granules or the like, which is held by the shrink film 16 in its shape. 0
- a formwork element is again shown in a flat state in which it can be delivered to the construction site to save space.
- the formwork element has a latticework, which consists in the example shown of three separate grid mats 1 10, for example in the form of 5 structural steel mats, which are formed by cross-laid metal rods 1 12, 1 14.
- the individual grid mats are characterized by joints 1 18, which are shown here only schematically, tensile strength but pivotally connected together the.
- the entire structure of three closely spaced grid mats 1 10 and the joints 1 18 is surrounded by a shrink film 1 16.
- the two layers of film at the joints 1 18 also be welded or glued together to keep the grid mats even more secure in position.
- Fig. 6 the grid mats 1 10 are folded over each other to form a compact structure. This is made possible by the joints 1 18 and the corresponding foil sections serving as hinges being made sufficiently wide.
- Fig. 7 shows an embodiment in which on one side of the lattice work, an insulating layer is attached, which is formed in the example shown by three separate insulating panels 120, each abutting one of the grid mats 1 10.
- a joint 1 18a formed by flexible hose pieces 122 which are pushed onto the ends of the metal bars 1 14 of the two grid mats.
- each tube piece 122 has two kinks 124, which form a kind of double joint. If the kinks 124 are formed by kinking of the hose piece before the hose piece is pushed onto the metal rods 1 14, these kinks can also serve as stops that limit the Aufstecktiefe.
- a hinge 1 18b is formed by ring clips, i. H. by wire rings 126, which are held closed by a crimped metal clip 128 and in each case enclose between the metal bars 14 the two metal bars 112 running parallel to each other and to the hinge axis at the edge of the grid mats.
- the metal rods 1 12 held together by ring wire instead of by ring wire.
- FIG. 10 shows a joint 1 18c formed by elongating the metal bars 14 of one of the two grid mats and bending them into hooks 130 which surround the metal bar 12 of the adjacent grid mat. to grab. If the two parallel to the hinge axis extending metal rods 1 12, which form the edges of the grid mats, are at a sufficiently short distance from each other, the hooks 130 may also be formed alternately on the metal bars 1 14 both grid mats.
- the formwork element shown in FIGS. 11 and 12 is formed by an upper grid mat 210a and a lower grid mat 210b overlapping therewith and can serve, for example, as a vertical shuttering wall for foundation formwork.
- Each of the grid mats 210a, 210b is formed by cross-welded longitudinal bars 212a, 212b and transverse bars 214a, 214b.
- the longitudinal and transverse bars are arranged in an identical grid.
- the longitudinal bars 212a extending vertically here are offset laterally by approximately one bar thickness in the case of the upper grid mat 210a, so that the longitudinal bars 212a and 212b can telescope into one another in the overlapping area of the grid mats.
- the transverse rods 214a and 214b are disposed on opposite sides of the mats so as not to limit the amount of overlap.
- Both grid mats 210a and 210b are enclosed in a common shrink film 216 and thereby fixed.
- lattice mats having suitable dimensions are selected in the production as upper and lower lattice mats 210a and 210b and pushed telescopically into one another such that the desired overall height results.
- the mats can be provisionally fixed with tie wire, clips or the like. Subsequently, the two grid mats are welded in this position in the shrink film 216, so as to obtain a one-piece formwork element with the desired height.
- the formwork element has the shape of a flat wall panel
- the lower grid mat 210b at the lower edge L-shapedLewinkein so that two such formwork elements together can limit a U-shaped formwork cavity.
- the lower grid mat 210b connect further grid mats not shown above joints so that the formwork element can be folded from a flat state into an L- or U-shaped configuration.
- the upper grid mat 210a in turn overlaps with a further grid mat, not shown, which further extends the formwork element upwards.
- FIG. 13 and 14 show a formwork element according to a modified embodiment, with two mutually displaceable in the vertical direction in Fig. 13 mesh mats 220a and 220b.
- the longitudinal and transverse bars belonging to the grid mat 220a are shown here hatched for better distinction.
- the main difference with the embodiment described above is that the two grid mats 220a and 220b, which are again included in a common shrink film 216 overlap here on most of their surface, so that the formwork element is mostly two-ply and only to the in Fig. 13 upper and lower ends consists of a single grid mat.
- the distance between the longitudinal bars 222a of the individual grid mat 220a is doubled in comparison to FIG.
- the longitudinal bars 222a and 222b of the two grid mats are staggered so that, at least in the central overlap area, the same lattice grid results in the end as in FIG. 11.
- the cross bars 224a and 224b of each grid mat are arranged on the largest part of the surface at twice the distance and offset from one another by gaps. Only in the upper edge region of the grid mat 220a and in the lower edge region of the grid mat 220b, ie in each case where a single grid mat protrudes, the density of the transverse bars is increased to twice, so that a greater rigidity is achieved here.
- Fig. 14 shows, in which, for reasons of clarity, the shrink film 216 has been omitted, the transverse rods 224a and 224b are again arranged on opposite sides of the comb-shaped interlocking longitudinal rods 222a and 222b.
- the transverse bars 224a and 224b lie alternately on opposite sides of the formwork element, and they are located in the creel. tion perpendicular to the plane of the shuttering element offset by at least the thickness of the longitudinal bars 222a, 222b against each other. This offset causes an effective stiffening of the formwork element.
- An additional stiffening is achieved in that some of the additional crossbars, which at the ends of each mat a greater stocking density is achieved, a crossbar of the other mat immediately opposite, substantially at the same height. This applies, for example, to the transverse bar 226b in FIG. 41.
- This arrangement of two parallel transverse bars at the same height is particularly advantageous for reasons of stability, but in a conventional formwork element with only a single grid mat, it is difficult to produce by welding technology.
- a corresponding edge reinforcement by means of bars directly opposite one another can be achieved analogously also for the longitudinal bars.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
L'invention concerne un élément de coffrage comprenant une armature enveloppée d'un film (16). L'élément de coffrage selon l'invention est caractérisé en ce que l'armature est constituée d'au moins deux treillis distincts (10) qui sont enveloppés d'un film commun (16).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08735259.7A EP2137353B1 (fr) | 2007-04-19 | 2008-04-15 | Élément de coffrage |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202007005701.6 | 2007-04-19 | ||
DE202007005701U DE202007005701U1 (de) | 2007-04-19 | 2007-04-19 | Schalungselement |
DE202007008977U DE202007008977U1 (de) | 2007-06-27 | 2007-06-27 | Schalungselement |
DE202007009044.7 | 2007-06-27 | ||
DE202007009044U DE202007009044U1 (de) | 2007-06-27 | 2007-06-27 | Schalungselement |
DE202007008977.5 | 2007-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008128683A1 true WO2008128683A1 (fr) | 2008-10-30 |
Family
ID=39590770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/003004 WO2008128683A1 (fr) | 2007-04-19 | 2008-04-15 | Élément de coffrage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2137353B1 (fr) |
WO (1) | WO2008128683A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135751A3 (fr) * | 2013-03-05 | 2015-01-15 | Pura Sakari | Moule de coulée |
EP2857605A1 (fr) | 2013-10-07 | 2015-04-08 | Peca Verbundtechnik GmbH | Élément de coffrage |
AU2018408668B2 (en) * | 2018-05-07 | 2020-08-13 | China University Of Mining And Technology | TRC folded assemble-type permanent formwork and manufacturing method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1551011A (en) * | 1976-07-26 | 1979-08-22 | Instrusion Prepakt Uk Ltd | Compined rigid and flexible shuttering |
-
2008
- 2008-04-15 EP EP08735259.7A patent/EP2137353B1/fr not_active Not-in-force
- 2008-04-15 WO PCT/EP2008/003004 patent/WO2008128683A1/fr active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1551011A (en) * | 1976-07-26 | 1979-08-22 | Instrusion Prepakt Uk Ltd | Compined rigid and flexible shuttering |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014135751A3 (fr) * | 2013-03-05 | 2015-01-15 | Pura Sakari | Moule de coulée |
EP2857605A1 (fr) | 2013-10-07 | 2015-04-08 | Peca Verbundtechnik GmbH | Élément de coffrage |
DE102013111056A1 (de) | 2013-10-07 | 2015-04-09 | Peca - Verbundtechnik Gmbh | Schalungselement |
AU2018408668B2 (en) * | 2018-05-07 | 2020-08-13 | China University Of Mining And Technology | TRC folded assemble-type permanent formwork and manufacturing method thereof |
Also Published As
Publication number | Publication date |
---|---|
EP2137353B1 (fr) | 2015-12-23 |
EP2137353A1 (fr) | 2009-12-30 |
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