EP2900885B1 - Wall formwork and wall formwork system - Google Patents
Wall formwork and wall formwork system Download PDFInfo
- Publication number
- EP2900885B1 EP2900885B1 EP13766100.5A EP13766100A EP2900885B1 EP 2900885 B1 EP2900885 B1 EP 2900885B1 EP 13766100 A EP13766100 A EP 13766100A EP 2900885 B1 EP2900885 B1 EP 2900885B1
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- EP
- European Patent Office
- Prior art keywords
- wall
- formwork
- wall formwork
- formworks
- anchor holes
- Prior art date
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- 238000009415 formwork Methods 0.000 title claims description 332
- 239000004567 concrete Substances 0.000 claims description 25
- 238000004873 anchoring Methods 0.000 description 14
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 102100031118 Catenin delta-2 Human genes 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 101000922056 Homo sapiens Catenin delta-2 Proteins 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
-
- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/06—Tying means; Spacers ; Devices for extracting or inserting wall ties
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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
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G2009/028—Forming boards or similar elements with reinforcing ribs on the underside
Definitions
- the invention relates to a wall formwork according to the preamble of claim 1.
- the invention further relates to a wall formwork system comprising such a wall formwork and a multi-purpose wall formwork as well as a wall formwork system comprising a plurality of wall formworks.
- Wall formworks are known from DE 10 2007 006 907 A1 , FR 2 537 192 A1 , GB 2 026 072 A , the brochures "Peri GmbH: Vario GT24, D-89264talenhorn, 05/2008", “Peri GmbH: TRIO Housing, D-89264heenhorn, 09/2009” and “Peri GmbH: MAXIMO, D-89264eenhorn, 10/2010".
- EP1347121 A2 discloses a wall formwork according to the preamble of claim 1.
- a wall formwork within the sense of the present invention is used in formwork engineering for concrete structures, i,e, for concreting concrete or reinforced concrete structures.
- a wall formwork is typically used for producing formworks for walls, columns, foundations, shafts or the like.
- a wall formwork comprises a formwork facing on the front facing towards the concrete and elements supporting the formwork facing on the back, such as frames, longitudinal beams and crossbars.
- the two sides of a wall to be concreted are delimited by a plurality of wall formworks.
- the outer face of each wall formwork configured as a formwork facing in that case adjoins the concrete.
- Wall formworks facing each other are, as a matter of principle, retained by a plurality of anchor rods.
- the anchor rods are in this case pushed through openings - referred to as “anchor holes" - in the wall formworks, and attached at their ends to the elements supporting the respective formwork facing in such a way that at least the tensile force acting upon the anchor rods during concreting is absorbed.
- wall formworks When anchoring the wall formwork, various requirements are being made with regard to the wall formwork in order to absorb the loads produced by pouring the liquid concrete - also called concrete pressure - in the wall formwork.
- Commonly used wall formworks typically comprise anchor holes disposed at the edge. Accordingly, an anchor rod accommodated in the wall formwork at the edge can be used also to engage a directly adjacent wall formwork at the same time, in order thus to enable a joint attachment of wall formworks situated next to one another. Accordingly, the anchor holes that are not used must be sealed tightly in order to prevent the concrete from running out of the intermediate space formed by wall formworks.
- a frame formwork system for manufacturing corners and T-shaped intersections is known from document DE 10 2007 006 907 A1 .
- the system comprises an inner corner element comprising two inner legs angled relative to each other, an outer corner member as well as two rectangular frame formwork elements.
- the anchor holes of one frame formwork element be disposed centrally between two parallel lateral outer edges.
- the frame formwork corner system is primarily designed to reduce the expenditure of a frame panel formwork in the case of corners or T-shaped intersections.
- US 5,836,126 discloses a modular form unit for architectural concrete walls comprising not more than two tie holes for each facing sheet.
- the anchor holes be disposed with a uniform grid spacing relative to each other, the wall formwork being dimensioned in such a way that the spacing of the anchor holes to the outer boundary of the wall formwork, which in the erected state extends vertically and/or horizontally, corresponds to half of the grid spacing.
- the anchor holes are disposed in a uniform, i.e. substantially equally spaced-apart grid spacing relative to each other in order to optimize the wall formwork with regard to the arising concrete pressure.
- the spacing of the anchor holes to the outer boundary of the wall formwork is also set in a specific manner. If a wall formwork is prepared with wall formworks of this type and filled with concrete, it is thus ensured that the wall formwork is exposed to the load particularly uniformly in such a way that the loads are substantially evenly distributed across the arrangement of the anchor holes.
- the arrangement which is, in particular, symmetrical, contributes to the concrete forces arising being absorbed in a uniformly distributed manner across the anchor holes. Excessive loads, and thus the danger of damage to the wall formwork, particularly in the region of the anchor holes and the anchor points, are thus avoided in an improved manner, so that an overall improved durability of the wall formwork is achieved.
- the arrangement of the anchor holes moreover contributes to preparing a rugged formwork in a manner that is advantageous as regards the assembly with few anchor holes, and thus, also few anchor points. The fewer anchor rods have to be used, the smaller the expenditure for assembly and dismantling,
- the arising concrete pressure can increase, particularly depending on the height of the wall formwork.
- the concrete pressure rises in particular in the lower region of the lowermost wall formwork.
- the uniform arrangement of the anchor holes is in that case advantageously designed in such a way that the grid spacing is adapted to the highest possible load on a wall formwork.
- a wall produced in this manner has, in the solidified concrete, a correspondingly uniform anchor hole pattern characterized by the impressions of the anchor holes.
- Such a regularly distributed, symmetrical, anchoring pattern is particularly attractive from a visual standpoint and can be used expediently for producing exposed concrete. This reduces the manufacturing expenditure for the production of exposed concrete.
- the arrangement of the anchor holes is designed in such a way that no individual corner wall formworks for different wall thicknesses are required for forming corners or corner-shaped geometries.
- the wall formworks can be combined in a flexible manner, particularly with multi-purpose wall formworks to be explained later, without having to store special corner wall formworks with individual dimensions. Consequently, the overall number of wall formworks can be reduced, which enables a rational preparation of wall formworks.
- the grid spacing is chosen in such a way that the horizontal grid spacing of the anchor holes corresponds to the vertical grid spacing of the anchor holes.
- the anchor holes are disposed axisymmetrically in the wall formwork and preferably the arrangement of the anchor holes is designed in such a way that the anchor holes extend along a horizontally or vertically extending axis.
- the anchor holes are disposed on at least two parallel spaced-apart axes.
- the parallel spaced-apart axes preferably extend in the vertical direction of the wall formwork.
- Three or more anchor holes are provided along a vertical axis.
- the arrangement of the anchor holes on parallel spaced-apart axes makes the rugged and large-surface configuration of wall formworks possible. This makes it possible to prepare wall formworks for large surfaces in an efficient manner. Nevertheless, it is possible in principle to arrange the wall formworks in a very flexible manner, particularly both standing as well as lying. A standing wall formwork is brought into a lying position by a 90° rotation. The number of required wall formworks can thus be reduced.
- the height of the wall formwork is between 260 cm and 400 cm.
- Particularly preferred are wall formworks with a height of 280 cm to 320 or with a height of 340 to 380 cm.
- the width of the wall formwork is between 200 cm and 280 cm, more preferably between 220 cm and 260 cm.
- the chosen formats of the wall formworks enable the rational forming of large surface areas.
- particularly rugged wall formworks are thus provided that reliably anchor a wall formwork using few anchor holes, i.e. anchor points.
- the formats of the wall formworks are selected in such a way that they are compatible with conventional wall formworks. This ensures that the wall formworks according to the proposal can be used in a variety of ways and can be combined with conventional wall formworks.
- Particularly preferred dimensions of the wall formworks according to the proposal are formats having a width of 45 cm, 60 cm, 75 cm, 90 cm, 120 cm or 240 cm, as well as a height of 90cm, 1 20 cm, 300 cm or 360 cm.
- the grid spacing of the anchor holes relative to each other is at least 60 cm, more preferably at least 80 cm.
- the grid spacing of the anchor holes relative to each other is no greater than 160 cm, more preferably no greater than 140 cm. This ensures a particularly rugged structure in the dimensioning of the wall formworks.
- the anchor holes at the edge have a spacing of at least 20 cm, more preferably at least 40 cm, to the outer boundary of the wall formwork.
- the anchor holes on the edge denote anchor points that are disposed adjacent to the outer edge of the wall formwork in at least one direction.
- this leaves sufficient space for the anchor holes disposed at the edge on the wall formwork to be able to securely attach anchor rods for anchoring the wall formwork. Since the specifically provided anchor holes of a wall formwork are in principle all being used for anchoring the wall formwork, the sealing of anchor points that are not required can be omitted. This contributes to a rational forming of large surface areas.
- the basic body of the wall formwork i.e. the supporting elements, are made from metal, preferably light metal.
- the basic body can be made, for example, from hot-dipped galvanized steel or extruded light metal.
- the basic body of the wall formwork is configured as a frame.
- the frame preferably comprises longitudinal beams and crossbars, which are preferably configured in a profile form for an improved stiffening of the frame.
- the arrangement of the anchor holes in the wall formwork is designed in such a way that the anchor holes extend through the frame of the wall formwork.
- the forces acting on the formwork facing can thus be introduced into the frame of the wall formwork in an improved manner.
- the wall formworks are preferably configured in such a manner that they can also be mounted rotated by 90°, if so required. In principle, this enables a flexible connection of wall formworks one above the other or next to each other in order to build up a large-surface wall formwork. As required, the wall formworks can then be stacked in a standing or lying state. It is particularly advantageous to correspondingly dimension the dimensions of the wall formworks so as to be compatible, so that the anchor holes and anchor points are aligned with an opposite wall formwork also if mounted rotated by 90°.
- the wall formworks can thus be combined with each other in a variety of ways, so that the number of required wall formworks, in particular of the different formats, can on the whole be reduced.
- a wall formwork system comprising at least one wall formwork according to claim 1 and a multi-purpose wall formwork, in which at least one horizontally extending anchor hole row with a plurality of anchor holes is provided, on which at least one closure means for anchor holes can be or is attached.
- the closure means is preferably attached to the outer face configured as a formwork facing in such a way that the closure means substantially ends flush with the outer face.
- the closure means for the anchor holes serves for closing anchor holes that are not required, i.e. anchor points of an anchor hole row.
- the closure means is configured in such a way that one anchor hole of the anchor hole row remains free for anchoring. The remaining anchor hole of a anchor hole row that is not closed can then be used for anchoring the multi-purpose wall formwork.
- the multi-purpose wall formwork can thus be flexibly disposed for anchoring with further wall formworks, wherein, depending on the circumstances, anchor holes that are not required can be closed with a closure means.
- the closure means ensures that no concrete leaks from the anchor points that are not required. Furthermore, this makes it possible to prepare a uniform anchor hole pattern in the solidified concrete, in which only those anchor points that are used for anchoring remain visible.
- the multi-purpose wall formwork according to the proposal can be used for preparing a complex wall formwork for corners, columns, pillars, wall projections or the like.
- one or more multi-purpose wall formworks can be flexibly combined with further wall formworks.
- the adaptability of the multi-purpose wall formwork ensures that the assembly-related expenditure for preparing such wall formworks is reduced considerably. Furthermore, the number of individual formworks to be stored as well as the corresponding accessories can be reduced, which makes a rational forming possible.
- the multi-purpose wall formwork can be used for length compensation when preparing a wall formwork. This contributes to reducing considerably the number of required formats of a wall formwork.
- the basic structure of the multi-purpose wall formwork corresponds to the wall formwork already explained. All of the statements made in respect of the wall formwork that are suitable for describing the configuration of the multi-purpose wall formwork apply mutatis mutandis to this additional teaching.
- the anchor holes of an anchor hole row are disposed in uniform spacings.
- the spacing of the anchor holes relative to each other is 3 cm to 7 cm, for example 5 cm. This makes it possible to flexibly adapt the multi-purpose wall formwork for anchoring so as to correspond to the given spacings.
- the anchor hole row is configured as a depression on the outer face configured as a formwork facing.
- the depression is configured in such a way that one or more closure means can be attached.
- a closure means such as a panel, strip or the like can be introduced into the depression, wherein the closure means is made in such a way that the anchor holes of the anchor hole row can be closed tightly.
- the closure means is connected to the anchor hole row by a positive and/or non-positive connection.
- a detachable connection such as a snap-in connection, is particularly advantageous. This enables a flexible attachment of a closure means to the anchor hole row.
- several closure means on a single anchor hole row can also be provided, which complement each other correspondingly, in order to cause the anchor hole row to be closed tightly.
- the closure means in one embodiment already comprises an anchor hole that can be used as an anchor point.
- the closure means can be adapted correspondingly to the required width of a multi-purpose wall formwork in order to provide the desired anchor point in an anchor hole row.
- the closure means is configured to be separable, preferably in such a way that sections and/or hole portions of the closure means are detachable.
- the corresponding section and/or hole portion of a closure means can be removed in order to enable anchoring.
- the closure means can be configured in such a manner that a perforation, notch, predetermined breaking point or the like is provided for the simplified separation of the sections and/or hole portions. It is particularly advantageous to provide the separable hole portions of a closure means in an axially aligned manner relative to the anchor holes of a anchor hole row. If the closure means is attached to an anchor hole row, the separable hole portions then preferably lie over the anchor hole of the multi-purpose wall formwork.
- the anchor hole row is rigidly connected to the basic body of the wall formwork and for this purpose preferably comprises a reinforcing strip in the basic body.
- the reinforcing strip is accommodated in the frame of the basic body.
- the arrangement of the reinforcing strip in the frame is designed in such a way that the reinforcing strip is disposed between crossbars of the frame.
- transverse holes are provided in one embodiment on the flat side of the multi-purpose wall formwork, which in particular extend substantially orthogonally to the anchor holes.
- the multi-purpose wall formwork can be connected in a variety of ways with other wall formworks, in order to prepare, in particular, a precise corner-shaped wall formworks. It is particularly advantageous to provide the transverse holes at the level of the anchor holes. Thus, this ensures compatibility with respect to other wall formworks or multi-purpose wall formworks.
- the transverse holes are provided on both lateral flat sides as well as, optionally, on the lower and upper flat side of a multi-purpose wall formwork in order to obtain a standing, lying, laterally and/or vertically offset assembly option.
- a multi-purpose wall formwork comprises at least two horizontally extending anchor hole rows.
- the spacing of the anchor hole rows that extend parallel to each other in particular corresponds to the grid spacing of a wall formwork described above. This ensures the compatibility of a multi-purpose wall formwork with a wall formwork described above, so that they can be combined with one another in a flexible manner.
- Particularly preferred dimensions of the multi-purpose wall formworks according to the proposal are formats having a width of 85 cm to 125 cm, preferably of 105 cm, as well as a height of 90 cm, 120 cm, 300 cm or 360 cm.
- a wall formwork system comprising at least one wall formwork and at least one multi-purpose wall formwork.
- the multi-purpose wall formwork corresponds to the multi-purpose wall formwork explained above, so that in this regard, reference may be made to the statements above in their entirety.
- the arrangement consisting of the wall formwork and the multi-purpose wall formwork makes it possible to prepare corner-shaped wall formworks with simple means.
- the adaptability of the multi-purpose wall formwork ensures that the wall formworks can be combined in any way in order to prepare a rugged wall formwork.
- the arrangement permits a length compensation when preparing a formwork. This contributes to preparing a variety of formworks with a small number of wall formwork formats and elements.
- a formwork system comprising a plurality of wall formworks.
- the wall formworks have at least two different dimensions, in particular height and/or width. This makes it possible to combine the wall formworks in a flexible manner.
- At least one wall formwork corresponds to the wall formwork according to the proposal explained above, so that in this regard, reference may be made to the statements above in their entirety.
- the arrangement of the wall formworks is designed in such a way that the anchor holes are disposed with a uniform grid spacing relative to one another, at least with a grid spacing of at least 40 cm, more preferably at least 60 cm.
- This also makes it possible to configure particularly large-surface wall formworks so as to be equal to the loads and to obtain a correspondingly uniform anchor hole pattern in the solidified concrete.
- Wall formworks 1 according to the invention and wall formworks 1' with different dimensions as regards both height and width are apparent from the illustration in Fig. 1 , with the outer face configured as a formwork facing 19 being shown.
- the wall formworks 1 have uniformly distributed anchor holes 5.
- the anchor holes 5 are disposed relative to one another with a grid spacing 2, 3.
- the horizontal grid spacing 2 preferably corresponds to the vertical grid spacing 3, so that an axisymmetrical, arrangement of the anchor holes is produced.
- the spacing of the anchor holes 5 to the outer boundaries 6, 7 corresponds to half of the grid spacing 2, 3.
- the outer boundaries of a wall formwork are formed by horizontal edge boundaries 6 and vertical edge boundaries 7.
- wall formworks 20 having two anchor holes 5 are disposed.
- the spacing between the two anchor holes is twice as large as the distance from one hole to the vertical edge boundary 7.
- the formwork system shown in Figure 1 comprises a wall formwork 21 with only one centrally disposed anchor hole 5.
- the spacing of the anchor hole 5 of the wall formwork 21 to its vertical and/or horizontal edge is half of the spacings 2 and 3 between two anchor holes of a wall formwork 1, in order to be able to be suitably combined with the wall formworks 1 while minimizing the number of required anchor rods.
- a wall formwork 22 comprises an anchor hole 5 whose spacing to the vertical edge 7 is half of the spacings 2 and 3 in order to be able to be suitably combined with the wall formworks 1 while minimizing the number of required anchor rods.
- the invention generally also includes a system with wall formworks, which comprises wall formworks with only a single hole, which has a spacing to vertical and/or horizontal boundaries that is half the size of the spacings 2 and/or 3.
- the differently dimensioned wall formworks 1, 1' can be combined in any way - as apparent from Fig. 1 - to form a wall formwork system, in order to form a large-surface wall formwork. Accordingly, it is possible to arrange the wall formworks 1, 1' in a variety of ways, standing, lying, vertically and/or laterally offset relative to each other. Thus, it is possible to use each of the wall formworks shown in Figure 1 rotated by 90°. Primarily, this applies to the wall formworks 1' with at least two anchor holes 5 or to the wall formworks 1 both having a spacing to each other that is twice the size of the respective spacing to the vertical and horizontal boundary. If such a wall formwork 1, 1' is inserted rotated by 90°, the anchor hole pattern does not change. Therefore, it is not necessary to alter the number of anchor rods in order to be equal to the loads.
- connection of adjacent wall formworks 1 typically is done by means of connecting means provided on the supporting frames of wall formworks, such as clips or aligning clamps, which thus make it possible to move the interconnected wall formworks together, for example using a crane. This facilitates the fabrication and assembly of large-surface wall formworks.
- the anchor holes 5 in the wall formwork 1 are provided at uniform spacings relative to each other.
- the grid spacings 2, 3 are maintained also in the case of a combination of differently dimensioned wall formworks 1, as is apparent from Fig. 1 .
- wall formworks with smaller dimensions can also be provided towards the upper end, for example wall formworks with only one or two anchor holes. Since the loads in the upper region are, as a rule, smaller than the loads in a lower region of a wall formwork, the overall stability of a wall formwork is not affected. It is particularly advantageous to adapt the grid spacings of the lowermost wall formworks 1 so as to correspond to the greatest loads in a wall formwork. This ensures that large-surface formworks are also reliably anchored and have a substantially symmetrical anchor hole pattern, which is particularly advantageous in particular in the production of exposed concrete.
- the uniform grid spacings 2, 3 of the differently dimensioned wall formworks are preferably selected in such a way that the wall formworks can be mounted rotated by 90°.
- the spacing 2 has the same size as spacing 3. This increases the compatibility of the wall formwork with each other. The number of required formats of wall formworks can be reduced accordingly.
- Figures 2 and 3 illustrate a multi-purpose wall formwork 8 with three parallel spaced-apart anchor hole rows 9.
- the spacing of the anchor hole rows is adapted, in particular, to the grid spacings 2, 3 of the above-described wall formworks 1, in order thus to enable a compatible arrangement to form a combined wall formwork system.
- the anchor hole rows 9 extend horizontally across the width 10 of a multi-purpose wall formwork 8 and thus end substantially at the lateral flat sides 15 of a multi-purpose wall formwork 8.
- An anchor hole row 9 in this case comprises a plurality of anchor holes 5 disposed distributed over the width 10 of a multi-purpose wall formwork, so that the multi-purpose wall formwork 8 can be adapted and used as required.
- the anchor holes of an anchor hole row 9 are covered by a closure means 11, which ends flush with the formwork facing 19, with the exception of an anchor hole 5 that is left free.
- the closure means 11 is configured as a panel or strip provided on the outer face of the multi-purpose wall formwork 8 configured as a formwork facing 19.
- this is a plastic strip having a hole 5, which can easily be cut to the desired size for closing the desired anchoring holes of the wall formwork.
- the multi-purpose wall panel initially comprises, in particular, plastic strips that are longer than the width 10 and which are therefore inserted only after having been cut to size, as shown in Figure 2 .
- the closure means 11 is disposed in a recess of the outer face configured as a formwork, in particular in such a way that the closure means 11 ends flush with the formwork. The closure means 11 thus accommodated enables a sealing connection to the formwork, so that concrete is prevented from leaking out.
- the closure means 11 for the anchor holes can also be configured to consist of multiple parts.
- One or more closure means can in this case be attached to the anchor hole row 9 as required, in order to obtain a closure of the anchor hole row 9.
- a closure means 11 can be flexibly adapted to the required dimensions.
- a hole portion for a required anchor rod can also be removed manually from the closure means 11 in order thus to enable the introduction of an anchor rod through a multi-purpose wall formwork 8.
- Fig. 3 shows a detailed view of an anchor hole row 9 in a multi-purpose wall formwork 8.
- the anchor holes 5 of an anchor hole row 9 are provided distributed at a uniform spacing relative to each other across the width of the multi-purpose wall formwork 8, for example in a spacing of 5 cm to each other.
- the anchor hole row 9 is rigidly connected in particular to the frame 12 of the multi-purpose wall formwork 8.
- the frame 12 preferably consists of longitudinal beams 13 and crossbars 14.
- the anchor hole row 9 preferably comprises a reinforcing strip 18. The latter is firmly connected in particular to the frame 12 of the multi-purpose wall formwork 8.
- the reinforcing strip 18 can be inserted correspondingly between crossbars 14 of the frame 12 and firmly connected. It has been found to be advantageous to dispose and attach the reinforcing strip 18 offset in the direction of the formwork, as shown in Figure 3 , for example by welding or through the use of a corresponding profile. In that case, a closure means 11 can then also be inserted into the recess thus provided, in order to be able to quickly see, from the rear shown in Figure 3 , which anchor hole is available.
- one or more transverse holes 16, which extend substantially orthogonally to the anchor holes 5, are provided on the lateral flat sides 15 of the multi-purpose wall formwork 8.
- This enables the connection of the multi-purpose wall formwork 8 via the flat sides 15, so that a flexible arrangement of the multi-purpose wall formwork 8 is possible, for example to prepare precise corner-shaped wall formworks.
- the transverse holes 16 are provided at the level of the anchor holes 5, i.e. at the level of the anchor hole rows 9.
- the anchor hole rows 9 of the multi-purpose wall formwork 8 are adapted to the corresponding level of the anchor holes 5 in a wall formwork 1 according to the invention. Accordingly, the vertical spacing of the anchor hole rows 9 can match the grid spacing 2, 3 of the wall formwork. This improves the compatibility between multi-purpose wall formworks 8 and wall formworks 1, so that a variety of combinations to form a wall formwork system is made possible. It is also possible to provide at least one frame hole 17, which can be used like an anchor hole 5, on the frame 12 of a multi-purpose wall formwork 8, in particular at the edge.
- the multi-purpose formwork element 8 can be used particularly advantageously with at least one wall formwork according to the proposal for forming corners, wall junctions, columns, pillars or the like,
- the adaptability of the multi-purpose wall formwork 8 contributes to the number of required wall formworks being reduced and to being able to dispense with special corner wall formworks for walls of different thicknesses. This contributes to a rational production and assembly of a formwork with a complex configuration.
- wall formworks are generally combined in a variety of ways in order to prepare large-surface wall formworks or complex wall formwork courses. This means that the interconnected wall formworks as well as the optionally provided multi-purpose formworks are exposed to different load levels due to concrete pressures, particularly depending on the height of the configured wall formwork.
- wall formworks 1 are shown in standing and lying positions. Moreover, particularly preferred spacings are given in centimeters.
- the system shown here comprises wall formworks 1, according to the invention, with a surface area of preferably 240 cm * 300 cm and six anchor holes 5 as well as wall formworks 1' with a surface area of preferably 120 cm * 300 cm and three anchor holes 5.
- the wall formworks with three anchor holes 5 are therefore half the width of the wall formworks with six anchor holes.
- the system additionally comprises at least square wall formworks 21 with only a single centrally disposed anchor hole, in order to fill small gaps if necessary.
- the surface area of the wall formwork 21 preferably is 120 cm * 120 cm.
Description
- The invention relates to a wall formwork according to the preamble of
claim 1. The invention further relates to a wall formwork system comprising such a wall formwork and a multi-purpose wall formwork as well as a wall formwork system comprising a plurality of wall formworks. Wall formworks are known fromDE 10 2007 006 907 A1 ,FR 2 537 192 A1GB 2 026 072 A -
EP1347121 A2 discloses a wall formwork according to the preamble ofclaim 1.
A wall formwork within the sense of the present invention is used in formwork engineering for concrete structures, i,e, for concreting concrete or reinforced concrete structures. A wall formwork is typically used for producing formworks for walls, columns, foundations, shafts or the like. A wall formwork comprises a formwork facing on the front facing towards the concrete and elements supporting the formwork facing on the back, such as frames, longitudinal beams and crossbars. The two sides of a wall to be concreted are delimited by a plurality of wall formworks. The outer face of each wall formwork configured as a formwork facing in that case adjoins the concrete. Wall formworks facing each other are, as a matter of principle, retained by a plurality of anchor rods. The anchor rods are in this case pushed through openings - referred to as "anchor holes" - in the wall formworks, and attached at their ends to the elements supporting the respective formwork facing in such a way that at least the tensile force acting upon the anchor rods during concreting is absorbed. - When anchoring the wall formwork, various requirements are being made with regard to the wall formwork in order to absorb the loads produced by pouring the liquid concrete - also called concrete pressure - in the wall formwork. Commonly used wall formworks typically comprise anchor holes disposed at the edge. Accordingly, an anchor rod accommodated in the wall formwork at the edge can be used also to engage a directly adjacent wall formwork at the same time, in order thus to enable a joint attachment of wall formworks situated next to one another. Accordingly, the anchor holes that are not used must be sealed tightly in order to prevent the concrete from running out of the intermediate space formed by wall formworks.
- It is also necessary, when preparing wall formworks, to configure individual dimensions and complex courses of the wall. In particular the preparation of wall formworks for corners, corner joints, columns, pillars, wall projections or the like regularly requires the storage of special wall formworks and accessories, in particular with individual dimensions, so the construction and assembly is unsatisfactory in many respects. The resulting expenditure is relatively high for a rational assembly of wall formworks.
- A frame formwork system for manufacturing corners and T-shaped intersections is known from
document DE 10 2007 006 907 A1 . The system comprises an inner corner element comprising two inner legs angled relative to each other, an outer corner member as well as two rectangular frame formwork elements. In order to reduce the total number of anchor holes in the frame formwork element, it is proposed that the anchor holes of one frame formwork element be disposed centrally between two parallel lateral outer edges. The frame formwork corner system is primarily designed to reduce the expenditure of a frame panel formwork in the case of corners or T-shaped intersections. - Providing special individual wall formworks, such as inner corner elements and outer corner elements, as a matter of principle entails the problem that such a frame formwork system cannot be used in a versatile manner for individual dimensions of a complex wall formwork, for example for different corners, columns, pillars, wall projections or the like.
-
US 5,836,126 discloses a modular form unit for architectural concrete walls comprising not more than two tie holes for each facing sheet. - It is the object of the invention to further develop a wall formwork for concrete structures.
- The object of the invention is achieved by means of a wall formwork having the features of
claim 1, as well as by means of wall formwork system comprising such a wall formwork. Advantageous embodiments are apparent from the dependent claims. - First of all, it is proposed that the anchor holes be disposed with a uniform grid spacing relative to each other, the wall formwork being dimensioned in such a way that the spacing of the anchor holes to the outer boundary of the wall formwork, which in the erected state extends vertically and/or horizontally, corresponds to half of the grid spacing.
- What is essential is the idea of reducing the loads in a wall formwork by a specific arrangement of the anchor holes. The anchor holes are disposed in a uniform, i.e. substantially equally spaced-apart grid spacing relative to each other in order to optimize the wall formwork with regard to the arising concrete pressure. In the process, the spacing of the anchor holes to the outer boundary of the wall formwork is also set in a specific manner. If a wall formwork is prepared with wall formworks of this type and filled with concrete, it is thus ensured that the wall formwork is exposed to the load particularly uniformly in such a way that the loads are substantially evenly distributed across the arrangement of the anchor holes. The arrangement, which is, in particular, symmetrical, contributes to the concrete forces arising being absorbed in a uniformly distributed manner across the anchor holes. Excessive loads, and thus the danger of damage to the wall formwork, particularly in the region of the anchor holes and the anchor points, are thus avoided in an improved manner, so that an overall improved durability of the wall formwork is achieved. The arrangement of the anchor holes moreover contributes to preparing a rugged formwork in a manner that is advantageous as regards the assembly with few anchor holes, and thus, also few anchor points. The fewer anchor rods have to be used, the smaller the expenditure for assembly and dismantling,
- If several formworks are connected to each other, for example by means of connecting means such as clips or aligning clamps, in order to prepare a large-surface formwork, the arising concrete pressure can increase, particularly depending on the height of the wall formwork. In that case, the concrete pressure rises in particular in the lower region of the lowermost wall formwork. The uniform arrangement of the anchor holes is in that case advantageously designed in such a way that the grid spacing is adapted to the highest possible load on a wall formwork. Thus, this makes wall formworks possible that, both individually as well as in combination, are particularly well adapted to the loads.
- Furthermore, a wall produced in this manner has, in the solidified concrete, a correspondingly uniform anchor hole pattern characterized by the impressions of the anchor holes. Such a regularly distributed, symmetrical, anchoring pattern is particularly attractive from a visual standpoint and can be used expediently for producing exposed concrete. This reduces the manufacturing expenditure for the production of exposed concrete.
- What is particularly also advantageous in the wall formwork according to the proposal is that the arrangement of the anchor holes is designed in such a way that no individual corner wall formworks for different wall thicknesses are required for forming corners or corner-shaped geometries. The wall formworks can be combined in a flexible manner, particularly with multi-purpose wall formworks to be explained later, without having to store special corner wall formworks with individual dimensions. Consequently, the overall number of wall formworks can be reduced, which enables a rational preparation of wall formworks. The grid spacing is chosen in such a way that the horizontal grid spacing of the anchor holes corresponds to the vertical grid spacing of the anchor holes. The anchor holes are disposed axisymmetrically in the wall formwork and preferably the arrangement of the anchor holes is designed in such a way that the anchor holes extend along a horizontally or vertically extending axis. The anchor holes are disposed on at least two parallel spaced-apart axes. The parallel spaced-apart axes preferably extend in the vertical direction of the wall formwork. Three or more anchor holes are provided along a vertical axis. The arrangement of the anchor holes on parallel spaced-apart axes makes the rugged and large-surface configuration of wall formworks possible. This makes it possible to prepare wall formworks for large surfaces in an efficient manner. Nevertheless, it is possible in principle to arrange the wall formworks in a very flexible manner, particularly both standing as well as lying. A standing wall formwork is brought into a lying position by a 90° rotation. The number of required wall formworks can thus be reduced.
- Preferably, the height of the wall formwork is between 260 cm and 400 cm. Particularly preferred are wall formworks with a height of 280 cm to 320 or with a height of 340 to 380 cm. In a further embodiment, the width of the wall formwork is between 200 cm and 280 cm, more preferably between 220 cm and 260 cm. Thus, the chosen formats of the wall formworks enable the rational forming of large surface areas. In contrast to the prior art, particularly rugged wall formworks are thus provided that reliably anchor a wall formwork using few anchor holes, i.e. anchor points. In particular, the formats of the wall formworks are selected in such a way that they are compatible with conventional wall formworks. This ensures that the wall formworks according to the proposal can be used in a variety of ways and can be combined with conventional wall formworks.
- Particularly preferred dimensions of the wall formworks according to the proposal are formats having a width of 45 cm, 60 cm, 75 cm, 90 cm, 120 cm or 240 cm, as well as a height of 90cm, 1 20 cm, 300 cm or 360 cm.
- In a preferred embodiment, the grid spacing of the anchor holes relative to each other is at least 60 cm, more preferably at least 80 cm. Alternatively, the grid spacing of the anchor holes relative to each other is no greater than 160 cm, more preferably no greater than 140 cm. This ensures a particularly rugged structure in the dimensioning of the wall formworks.
- In another preferred embodiment, the anchor holes at the edge have a spacing of at least 20 cm, more preferably at least 40 cm, to the outer boundary of the wall formwork. The anchor holes on the edge denote anchor points that are disposed adjacent to the outer edge of the wall formwork in at least one direction. Thus, this leaves sufficient space for the anchor holes disposed at the edge on the wall formwork to be able to securely attach anchor rods for anchoring the wall formwork. Since the specifically provided anchor holes of a wall formwork are in principle all being used for anchoring the wall formwork, the sealing of anchor points that are not required can be omitted. This contributes to a rational forming of large surface areas.
- In one embodiment, the basic body of the wall formwork, i.e. the supporting elements, are made from metal, preferably light metal. The basic body can be made, for example, from hot-dipped galvanized steel or extruded light metal. In a preferred embodiment, the basic body of the wall formwork is configured as a frame. The frame preferably comprises longitudinal beams and crossbars, which are preferably configured in a profile form for an improved stiffening of the frame. The arrangement of the anchor holes in the wall formwork is designed in such a way that the anchor holes extend through the frame of the wall formwork. The forces acting on the formwork facing can thus be introduced into the frame of the wall formwork in an improved manner. In this case, it is particularly advantageous to dispose the anchor holes on longitudinal beams and/or crossbars of the frame that are configured in a reinforced manner, in order to enable a constructionally advantageous anchoring.
- The wall formworks are preferably configured in such a manner that they can also be mounted rotated by 90°, if so required. In principle, this enables a flexible connection of wall formworks one above the other or next to each other in order to build up a large-surface wall formwork. As required, the wall formworks can then be stacked in a standing or lying state. It is particularly advantageous to correspondingly dimension the dimensions of the wall formworks so as to be compatible, so that the anchor holes and anchor points are aligned with an opposite wall formwork also if mounted rotated by 90°. The wall formworks can thus be combined with each other in a variety of ways, so that the number of required wall formworks, in particular of the different formats, can on the whole be reduced.
- According to
claim 7, a wall formwork system comprising at least one wall formwork according toclaim 1 and a multi-purpose wall formwork, in which at least one horizontally extending anchor hole row with a plurality of anchor holes is provided, on which at least one closure means for anchor holes can be or is attached. The closure means is preferably attached to the outer face configured as a formwork facing in such a way that the closure means substantially ends flush with the outer face. In particular, the closure means for the anchor holes serves for closing anchor holes that are not required, i.e. anchor points of an anchor hole row. - In particular, the closure means is configured in such a way that one anchor hole of the anchor hole row remains free for anchoring. The remaining anchor hole of a anchor hole row that is not closed can then be used for anchoring the multi-purpose wall formwork.
- At first, it is important to provide a plurality of anchor holes in the form of an anchor hole row, in which anchor points that are not required can be closed as needed. The multi-purpose wall formwork can thus be flexibly disposed for anchoring with further wall formworks, wherein, depending on the circumstances, anchor holes that are not required can be closed with a closure means. The closure means ensures that no concrete leaks from the anchor points that are not required. Furthermore, this makes it possible to prepare a uniform anchor hole pattern in the solidified concrete, in which only those anchor points that are used for anchoring remain visible.
- Particularly advantageously, the multi-purpose wall formwork according to the proposal can be used for preparing a complex wall formwork for corners, columns, pillars, wall projections or the like. For this purpose, one or more multi-purpose wall formworks can be flexibly combined with further wall formworks. The adaptability of the multi-purpose wall formwork ensures that the assembly-related expenditure for preparing such wall formworks is reduced considerably. Furthermore, the number of individual formworks to be stored as well as the corresponding accessories can be reduced, which makes a rational forming possible.
- Moreover, due to the adaptable anchor points, the multi-purpose wall formwork can be used for length compensation when preparing a wall formwork. This contributes to reducing considerably the number of required formats of a wall formwork.
- The basic structure of the multi-purpose wall formwork corresponds to the wall formwork already explained. All of the statements made in respect of the wall formwork that are suitable for describing the configuration of the multi-purpose wall formwork apply mutatis mutandis to this additional teaching.
- Preferably, the anchor holes of an anchor hole row are disposed in uniform spacings. In particular, the spacing of the anchor holes relative to each other is 3 cm to 7 cm, for example 5 cm. This makes it possible to flexibly adapt the multi-purpose wall formwork for anchoring so as to correspond to the given spacings.
- In one embodiment, the anchor hole row is configured as a depression on the outer face configured as a formwork facing. Preferably, the depression is configured in such a way that one or more closure means can be attached. Then, a closure means, such as a panel, strip or the like can be introduced into the depression, wherein the closure means is made in such a way that the anchor holes of the anchor hole row can be closed tightly.
- Preferably, the closure means is connected to the anchor hole row by a positive and/or non-positive connection. A detachable connection, such as a snap-in connection, is particularly advantageous. This enables a flexible attachment of a closure means to the anchor hole row. In principle, several closure means on a single anchor hole row can also be provided, which complement each other correspondingly, in order to cause the anchor hole row to be closed tightly.
- In order to make possible a flexible selection of the anchor hole of an anchor hole row used for anchoring, the closure means in one embodiment already comprises an anchor hole that can be used as an anchor point. In that case, the closure means can be adapted correspondingly to the required width of a multi-purpose wall formwork in order to provide the desired anchor point in an anchor hole row.
- In another embodiment, the closure means is configured to be separable, preferably in such a way that sections and/or hole portions of the closure means are detachable. Depending on the desired anchor point, the corresponding section and/or hole portion of a closure means can be removed in order to enable anchoring. For this purpose, the closure means can be configured in such a manner that a perforation, notch, predetermined breaking point or the like is provided for the simplified separation of the sections and/or hole portions. It is particularly advantageous to provide the separable hole portions of a closure means in an axially aligned manner relative to the anchor holes of a anchor hole row. If the closure means is attached to an anchor hole row, the separable hole portions then preferably lie over the anchor hole of the multi-purpose wall formwork.
- In another embodiment, the anchor hole row is rigidly connected to the basic body of the wall formwork and for this purpose preferably comprises a reinforcing strip in the basic body. In particular, the reinforcing strip is accommodated in the frame of the basic body. In particular, the arrangement of the reinforcing strip in the frame is designed in such a way that the reinforcing strip is disposed between crossbars of the frame. This makes an embodiment of the anchor hole row in the wall formwork possible that is constructionally particularly advantageous.
- In order to make possible a flexible connection on the lateral flat sides of a multi-purpose wall formwork, transverse holes are provided in one embodiment on the flat side of the multi-purpose wall formwork, which in particular extend substantially orthogonally to the anchor holes. Thus, the multi-purpose wall formwork can be connected in a variety of ways with other wall formworks, in order to prepare, in particular, a precise corner-shaped wall formworks. It is particularly advantageous to provide the transverse holes at the level of the anchor holes. Thus, this ensures compatibility with respect to other wall formworks or multi-purpose wall formworks. Particularly preferably, the transverse holes are provided on both lateral flat sides as well as, optionally, on the lower and upper flat side of a multi-purpose wall formwork in order to obtain a standing, lying, laterally and/or vertically offset assembly option.
- Preferably, a multi-purpose wall formwork comprises at least two horizontally extending anchor hole rows. The spacing of the anchor hole rows that extend parallel to each other in particular corresponds to the grid spacing of a wall formwork described above. This ensures the compatibility of a multi-purpose wall formwork with a wall formwork described above, so that they can be combined with one another in a flexible manner.
- Particularly preferred dimensions of the multi-purpose wall formworks according to the proposal are formats having a width of 85 cm to 125 cm, preferably of 105 cm, as well as a height of 90 cm, 120 cm, 300 cm or 360 cm.
- According to another aspect of the invention, a wall formwork system comprising at least one wall formwork and at least one multi-purpose wall formwork is proposed. The multi-purpose wall formwork corresponds to the multi-purpose wall formwork explained above, so that in this regard, reference may be made to the statements above in their entirety.
- The arrangement consisting of the wall formwork and the multi-purpose wall formwork makes it possible to prepare corner-shaped wall formworks with simple means. The adaptability of the multi-purpose wall formwork ensures that the wall formworks can be combined in any way in order to prepare a rugged wall formwork. Furthermore, due to the adaptability of the multi-purpose wall formwork, the arrangement permits a length compensation when preparing a formwork. This contributes to preparing a variety of formworks with a small number of wall formwork formats and elements.
- According to another aspect of the invention, a formwork system is proposed, comprising a plurality of wall formworks. What is important is that the wall formworks have at least two different dimensions, in particular height and/or width. This makes it possible to combine the wall formworks in a flexible manner. In particular, it is thus possible to arrange differently dimensioned wall formworks in a standing, lying, vertically and/or laterally offset manner relative to one another, in order to, for example, prepare a flexible stack of a wall formwork for a large-surface formwork. At least one wall formwork corresponds to the wall formwork according to the proposal explained above, so that in this regard, reference may be made to the statements above in their entirety.
- Particularly preferably, the arrangement of the wall formworks is designed in such a way that the anchor holes are disposed with a uniform grid spacing relative to one another, at least with a grid spacing of at least 40 cm, more preferably at least 60 cm. This also makes it possible to configure particularly large-surface wall formworks so as to be equal to the loads and to obtain a correspondingly uniform anchor hole pattern in the solidified concrete.
- The invention is explained in more detail below with reference to exemplary embodiments. In the Figures:
- Fig. 1
- shows a schematic representation of wall formworks according to the proposal,
- Fig. 2
- shows a schematic representation of a multi-purpose wall formwork,
- Fig. 3
- shows a detailed view of a multi-purpose wall formwork, and
- Fig. 4
- shows a formwork with wall formworks disposed standing and lying.
- Wall formworks 1 according to the invention and wall formworks 1' with different dimensions as regards both height and width are apparent from the illustration in
Fig. 1 , with the outer face configured as a formwork facing 19 being shown. Thewall formworks 1 have uniformly distributed anchor holes 5. The anchor holes 5 are disposed relative to one another with agrid spacing wall formworks 1 whose anchor holes 5 are disposed along two parallel spaced-apart, in particular vertically extending, axes, thehorizontal grid spacing 2 preferably corresponds to thevertical grid spacing 3, so that an axisymmetrical, arrangement of the anchor holes is produced. It is also apparent from the illustration inFig. 1 that the spacing of the anchor holes 5 to theouter boundaries grid spacing horizontal edge boundaries 6 andvertical edge boundaries 7. - Above the wall formworks 1',
wall formworks 20 having twoanchor holes 5 are disposed. The spacing between the two anchor holes is twice as large as the distance from one hole to thevertical edge boundary 7. - The formwork system shown in
Figure 1 comprises awall formwork 21 with only one centrally disposedanchor hole 5. The spacing of theanchor hole 5 of thewall formwork 21 to its vertical and/or horizontal edge is half of thespacings wall formwork 1, in order to be able to be suitably combined with thewall formworks 1 while minimizing the number of required anchor rods. - A
wall formwork 22 comprises ananchor hole 5 whose spacing to thevertical edge 7 is half of thespacings wall formworks 1 while minimizing the number of required anchor rods. - Therefore, the invention generally also includes a system with wall formworks, which comprises wall formworks with only a single hole, which has a spacing to vertical and/or horizontal boundaries that is half the size of the
spacings 2 and/or 3. - The differently dimensioned
wall formworks 1, 1' can be combined in any way - as apparent fromFig. 1 - to form a wall formwork system, in order to form a large-surface wall formwork. Accordingly, it is possible to arrange thewall formworks 1, 1' in a variety of ways, standing, lying, vertically and/or laterally offset relative to each other. Thus, it is possible to use each of the wall formworks shown inFigure 1 rotated by 90°. Primarily, this applies to the wall formworks 1' with at least twoanchor holes 5 or to thewall formworks 1 both having a spacing to each other that is twice the size of the respective spacing to the vertical and horizontal boundary. If such awall formwork 1, 1' is inserted rotated by 90°, the anchor hole pattern does not change. Therefore, it is not necessary to alter the number of anchor rods in order to be equal to the loads. - The connection of
adjacent wall formworks 1 typically is done by means of connecting means provided on the supporting frames of wall formworks, such as clips or aligning clamps, which thus make it possible to move the interconnected wall formworks together, for example using a crane. This facilitates the fabrication and assembly of large-surface wall formworks. - Compared with the prior art, the anchor holes 5 in the
wall formwork 1 are provided at uniform spacings relative to each other. Thegrid spacings wall formworks 1, as is apparent fromFig. 1 . In principle, wall formworks with smaller dimensions can also be provided towards the upper end, for example wall formworks with only one or two anchor holes. Since the loads in the upper region are, as a rule, smaller than the loads in a lower region of a wall formwork, the overall stability of a wall formwork is not affected. It is particularly advantageous to adapt the grid spacings of thelowermost wall formworks 1 so as to correspond to the greatest loads in a wall formwork. This ensures that large-surface formworks are also reliably anchored and have a substantially symmetrical anchor hole pattern, which is particularly advantageous in particular in the production of exposed concrete. - For the aforementioned reasons, the
uniform grid spacings spacing 2 has the same size asspacing 3. This increases the compatibility of the wall formwork with each other. The number of required formats of wall formworks can be reduced accordingly. -
Figures 2 and3 illustrate amulti-purpose wall formwork 8 with three parallel spaced-apartanchor hole rows 9. The spacing of the anchor hole rows is adapted, in particular, to thegrid spacings wall formworks 1, in order thus to enable a compatible arrangement to form a combined wall formwork system. Theanchor hole rows 9 extend horizontally across thewidth 10 of amulti-purpose wall formwork 8 and thus end substantially at the lateralflat sides 15 of amulti-purpose wall formwork 8. - An
anchor hole row 9 in this case comprises a plurality of anchor holes 5 disposed distributed over thewidth 10 of a multi-purpose wall formwork, so that themulti-purpose wall formwork 8 can be adapted and used as required. In the case ofFig. 2 , the anchor holes of ananchor hole row 9 are covered by a closure means 11, which ends flush with the formwork facing 19, with the exception of ananchor hole 5 that is left free. In this case, the closure means 11 is configured as a panel or strip provided on the outer face of themulti-purpose wall formwork 8 configured as a formwork facing 19. In particular, this is a plastic strip having ahole 5, which can easily be cut to the desired size for closing the desired anchoring holes of the wall formwork. Therefore, the multi-purpose wall panel initially comprises, in particular, plastic strips that are longer than thewidth 10 and which are therefore inserted only after having been cut to size, as shown inFigure 2 . Preferably, the closure means 11 is disposed in a recess of the outer face configured as a formwork, in particular in such a way that the closure means 11 ends flush with the formwork. The closure means 11 thus accommodated enables a sealing connection to the formwork, so that concrete is prevented from leaking out. - In principle, the closure means 11 for the anchor holes can also be configured to consist of multiple parts. One or more closure means can in this case be attached to the
anchor hole row 9 as required, in order to obtain a closure of theanchor hole row 9. It is also possible to configure a closure means 11 with separable sections and/or hole portions. Thus, the closure means 11 can be flexibly adapted to the required dimensions. Alternatively or additionally, a hole portion for a required anchor rod can also be removed manually from the closure means 11 in order thus to enable the introduction of an anchor rod through amulti-purpose wall formwork 8. -
Fig. 3 shows a detailed view of ananchor hole row 9 in amulti-purpose wall formwork 8. The anchor holes 5 of ananchor hole row 9 are provided distributed at a uniform spacing relative to each other across the width of themulti-purpose wall formwork 8, for example in a spacing of 5 cm to each other. Theanchor hole row 9 is rigidly connected in particular to theframe 12 of themulti-purpose wall formwork 8. Theframe 12 preferably consists oflongitudinal beams 13 andcrossbars 14. For a constructionally advantageous connection of theanchor hole row 9 to theframe 12, theanchor hole row 9 preferably comprises a reinforcingstrip 18. The latter is firmly connected in particular to theframe 12 of themulti-purpose wall formwork 8. For this purpose, the reinforcingstrip 18 can be inserted correspondingly betweencrossbars 14 of theframe 12 and firmly connected. It has been found to be advantageous to dispose and attach the reinforcingstrip 18 offset in the direction of the formwork, as shown inFigure 3 , for example by welding or through the use of a corresponding profile. In that case, a closure means 11 can then also be inserted into the recess thus provided, in order to be able to quickly see, from the rear shown inFigure 3 , which anchor hole is available. - Preferably, one or more
transverse holes 16, which extend substantially orthogonally to the anchor holes 5, are provided on the lateralflat sides 15 of themulti-purpose wall formwork 8. This enables the connection of themulti-purpose wall formwork 8 via theflat sides 15, so that a flexible arrangement of themulti-purpose wall formwork 8 is possible, for example to prepare precise corner-shaped wall formworks. - Preferably, the
transverse holes 16 are provided at the level of the anchor holes 5, i.e. at the level of theanchor hole rows 9. Preferably, theanchor hole rows 9 of themulti-purpose wall formwork 8 are adapted to the corresponding level of the anchor holes 5 in awall formwork 1 according to the invention. Accordingly, the vertical spacing of theanchor hole rows 9 can match thegrid spacing multi-purpose wall formworks 8 andwall formworks 1, so that a variety of combinations to form a wall formwork system is made possible. It is also possible to provide at least oneframe hole 17, which can be used like ananchor hole 5, on theframe 12 of amulti-purpose wall formwork 8, in particular at the edge. - The
multi-purpose formwork element 8 can be used particularly advantageously with at least one wall formwork according to the proposal for forming corners, wall junctions, columns, pillars or the like, The adaptability of themulti-purpose wall formwork 8 contributes to the number of required wall formworks being reduced and to being able to dispense with special corner wall formworks for walls of different thicknesses. This contributes to a rational production and assembly of a formwork with a complex configuration. - It is apparent from the above statements that the wall formworks are generally combined in a variety of ways in order to prepare large-surface wall formworks or complex wall formwork courses. This means that the interconnected wall formworks as well as the optionally provided multi-purpose formworks are exposed to different load levels due to concrete pressures, particularly depending on the height of the configured wall formwork.
- In view of the different loads on a wall formwork, it becomes clear that the load-adapted, rugged structure of the
wall formwork 1 according to the proposal and the corresponding dimensioning of thewall formwork 1 are of particular importance. The excessive concrete pressures in a wall formwork combined in whatever fashion, which also arise, lead to an overloading of anchor points, which in the end also jeopardizes a reliable anchoring of the wall formwork. Such overloads on anchor points in the case of a combined arrangement of a plurality ofwall formworks 1 and optionally providedmulti-purpose wall formworks 8 can be avoided with simple means by means of the wall formwork systems according to the proposal, even under difficult conditions, such as large-surface formworks or complex wall formwork courses. - In
Figure 4 ,wall formworks 1 are shown in standing and lying positions. Moreover, particularly preferred spacings are given in centimeters. Thus, the system shown here compriseswall formworks 1, according to the invention, with a surface area of preferably 240 cm * 300 cm and sixanchor holes 5 as well as wall formworks 1' with a surface area of preferably 120 cm * 300 cm and three anchor holes 5. The wall formworks with threeanchor holes 5 are therefore half the width of the wall formworks with six anchor holes. Advantageously, the system additionally comprises at leastsquare wall formworks 21 with only a single centrally disposed anchor hole, in order to fill small gaps if necessary. The surface area of thewall formwork 21 preferably is 120 cm * 120 cm. -
- 1, 1'
- Wall formwork
- 2
- Horizontal grid spacing
- 3
- Vertical grid spacing
- 4
- Spacing from edge
- 5
- Anchor hole
- 6
- Horizontal edge boundary
- 7
- Vertical edge boundary
- 8
- Multi-purpose wall formwork
- 9
- Anchor hole row
- 10
- Width of 8
- 11
- Closure means
- 12
- Frame
- 13
- Longitudinal beam
- 14
- Crossbar
- 15
- Flat side of 8
- 16
- Transverse hole
- 17
- Frame hole
- 18
- Reinforcing strip for 9
- 19
- Formwork facing
- 20
- Wall formwork
Claims (12)
- A wall formwork (1) for concrete structures, comprising a basic body (12), an outer face configured as a formwork facing (19), and anchor holes (5) for the detachable connection to other wall formworks, wherein the anchor holes (5) are disposed with a uniform grid spacing (2, 3) relative to each other, wherein the wall formwork (1) is dimensioned in such a way that the spacing (4) of the anchor holes to the outer vertical (7) and/or horizontal (6) boundary of the wall formwork (1) corresponds to half of the uniform grid spacing (2, 3), wherein the anchor holes (5) are disposed axisymmetrically in the wall formwork (1), wherein the anchor holes (5) are disposed on at least two parallel spaced-apart axes, and at least three anchor holes are provided along an axis,
characterized in that the arrangement of the anchor holes (5) in the wall formwork (1) is designed in such a way that the anchor holes (5) extend through a frame of the wall formwork (1). - The wall formwork according to the preceding claim, whereinthe at least two parallel spaced-apart axes are vertically extending.
- The wall formwork according to any one of the preceding claims, wherein the height of the wall formwork is between 280 cm and 380 cm, particularly preferably 300 cm or 360 cm.
- The wall formwork according to any one of the preceding claims, wherein the width of the wall formwork is between 200 cm and 300 cm, more preferably between 220 cm and 260 cm.
- The wall formwork according to any one of the preceding claims, wherein the grid spacing (2, 3) of the anchor holes relative to each other is at least 60 cm, more preferably at least 80 cm, or wherein the grid spacing of the anchor holes relative to each other is no greater than 160 cm, more preferably no greater than 140 cm.
- The wall formwork according to any one of the preceding claims, wherein the spacing (4) of the anchor holes (5) to the outer horizontal (7) and/or vertical (6) boundary of the wall formwork is at least 20 cm, more preferably at least 30 cm.
- A wall formwork system comprising at least one wall formwork (1) according to any one of the preceding claims and at least one multi-purpose wall formwork (8), wherein the multi-purpose wall formwork comprises a basic body (12), an outer face configured as a formwork facing (19), and anchor holes for the detachable connection to other wall formworks, wherein at least one horizontally extending anchor hole row (9) with a plurality of anchor holes (5) is provided on the multi-purpose wall formwork, on which at least one closure means (11) for anchor holes can be or is attached, preferably in such a way that the closure means ends substantially flush with the outer face configured as a formwork facing.
- A wall formwork system comprising a plurality of wall formworks, wherein at least two wall formworks are configured according to any one of the preceding claims 1 to 6, characterized in that the at least two wall formworks have at least two different dimensions, in particular height and/or width.
- The wall formwork system according to the preceding claim, wherein the difference in width of different wall formworks, with regard to the amount, is 15 cm or a multiple of 15 cm, and preferably the smallest width of a formwork element is 45 cm and/or the largest width of a formwork element is 240 cm.
- The wall formwork system according to any one of the claims 8 to 9, wherein the difference in height of different wall formworks, with regard to the amount, is 30 cm or a multiple of 30 cm, and preferably the smallest height of a formwork element is 45 cm and/or the largest height of a formwork element is 360 cm.
- The wall formwork system according to any one of the claims 8 to 10, wherein at least one wall formwork can be mounted rotated by 90°, and/or comprises two identical wall formworks, wherein one wall formwork (1) is disposed rotated by 90° as compared to the other wall formwork (1).
- The wall formwork system according to any one of the claims 8 to 11, wherein wall formworks having a width exceeding 200 cm, in particular exceeding 220 cm, comprise at least two parallel spaced-apart, vertically extending axes on which the anchor holes are disposed and/or wherein wall formworks having a height exceeding 260 cm, in particular exceeding 280 cm, comprise at least three anchor holes (5), which, in particular, are disposed along the vertically extending axis.
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PL13766100T PL2900885T3 (en) | 2012-09-28 | 2013-09-24 | Wall formwork and wall formwork system |
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DE102012217689.6A DE102012217689A1 (en) | 2012-09-28 | 2012-09-28 | Wall formwork and wall formwork system |
PCT/EP2013/069826 WO2014048908A1 (en) | 2012-09-28 | 2013-09-24 | Wall formwork and wall formwork system |
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Application Number | Title | Priority Date | Filing Date |
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EP13766100.5A Active EP2900885B1 (en) | 2012-09-28 | 2013-09-24 | Wall formwork and wall formwork system |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150267421A1 (en) |
EP (1) | EP2900885B1 (en) |
DE (1) | DE102012217689A1 (en) |
PL (1) | PL2900885T3 (en) |
WO (1) | WO2014048908A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUB20155637A1 (en) * | 2015-11-17 | 2017-05-17 | Faresin Building S P A | PERFECT CASSERATURE STRUCTURE |
MD4605C1 (en) * | 2017-10-10 | 2019-06-30 | Николае Попеску | Processes for erecting structural components of a building/structure of cast-in-situ reinforced concrete and technological equipment for its realization |
US10975585B2 (en) | 2018-10-15 | 2021-04-13 | Peri Formwork Systems, Inc. | Connection assembly for formwork |
DE102020101188A1 (en) | 2020-01-20 | 2021-07-22 | Peri Gmbh | Framed formwork element |
DE102021107534A1 (en) | 2021-03-25 | 2022-09-29 | Peri Se | Frame formwork element for a wall formwork system, insert part for a frame formwork element, wall formwork system and method for producing a formwork system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4963220A (en) * | 1972-10-19 | 1974-06-19 | ||
GB2026072A (en) * | 1977-11-03 | 1980-01-30 | Roberts P | Formwork panel |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1121056A (en) * | 1909-09-23 | 1914-12-15 | Charles P Wetmore | Mold units and mold for concrete work. |
US1120569A (en) * | 1912-08-29 | 1914-12-08 | Le Roy K Van Horn | Mold for making concrete structures. |
US1206598A (en) * | 1916-04-14 | 1916-11-28 | Otto Sager | Concrete-wall mold. |
FR2537192B1 (en) * | 1982-12-01 | 1988-07-01 | Outinord St Amand | IMPROVEMENTS IN FORMWORK COMPOSED OF SYNTHETIC PANELS AND A SUPPORT FRAME |
JPH0743355Y2 (en) * | 1992-07-08 | 1995-10-09 | 株式会社タカシマ | Concrete formwork and its fasteners |
US5537797A (en) * | 1993-11-22 | 1996-07-23 | The Salk Institute For Biological Studies | Modular concrete form system and method for constructing concrete walls |
ES2113770B1 (en) * | 1994-02-02 | 1999-01-01 | Espina Diaz Agustin | CONSTRUCTION SYSTEM FOR INJECTED WALLS IN SITU. |
JPH07247676A (en) * | 1994-03-09 | 1995-09-26 | Komatsu Ltd | Concrete form |
US7191572B2 (en) * | 2002-03-19 | 2007-03-20 | Izquierdo Luis W | Construction method and system |
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 |
-
2012
- 2012-09-28 DE DE102012217689.6A patent/DE102012217689A1/en not_active Ceased
-
2013
- 2013-09-24 EP EP13766100.5A patent/EP2900885B1/en active Active
- 2013-09-24 US US14/430,926 patent/US20150267421A1/en not_active Abandoned
- 2013-09-24 PL PL13766100T patent/PL2900885T3/en unknown
- 2013-09-24 WO PCT/EP2013/069826 patent/WO2014048908A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4963220A (en) * | 1972-10-19 | 1974-06-19 | ||
GB2026072A (en) * | 1977-11-03 | 1980-01-30 | Roberts P | Formwork panel |
Also Published As
Publication number | Publication date |
---|---|
WO2014048908A1 (en) | 2014-04-03 |
US20150267421A1 (en) | 2015-09-24 |
DE102012217689A1 (en) | 2014-04-03 |
PL2900885T3 (en) | 2017-12-29 |
EP2900885A1 (en) | 2015-08-05 |
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