• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a formwork element for forming expansion or compression joints in concrete components with a shuttering panel having at least one cover plate, which is folded or folded to form a stiffening and spacers gelgelanordnung to an arrangement.
    公开号:AT518349A2
    申请号:T50125/2017
    申请日:2017-02-15
    公开日:2017-09-15
    发明作者:
    申请人:Fwr Solutions Gmbh；
    IPC主号:
    专利说明:

    Shuttering element for forming expansion or compression joints in concrete components
    The invention relates to a formwork element with the features of the preamble of claim 1.
    In one known from DE 20 2014 004 206 U1 formwork element of this type are on the outside of the cover plates in cross-section T-shaped, possibly made of stainless steel, T-profiles welded so that the profile leg formed by the T-leg protrudes vertically from the formwork panel. With the free profile leg edge of each T-profile is welded to a direction transverse to the T-section extending portion of the bracket assembly. The T-profiles thus serve on the one hand the stiffening of the cover plates and thus the formwork panels and on the other hand represent the spacers between formwork panel and bracket assembly, which ensure that there is sufficient space between the bracket assembly and the formwork panel for a concrete cover.
    In a similar formwork element according to DE 10 2012 018 135 A1 serve as a spacer between the formwork panels and the bracket assemblies on the cover plates welded lattice girders, which at the same time ensure a stiffening of the formwork panels.
    Attaching separate spacers and stiffeners to the shrouds is costly and time consuming.
    The invention has for its object to simplify the manufacture of formwork elements of the type described above and to cheapen.
    This object is achieved in a generic formwork element by the marked features of claim 1.
    In the formwork element according to the invention, the folded portions of the cover plates at the same time take over the function of stiffening the formwork panel and that of maintaining a distance and the connection between the formwork panel and the adjacent bracket assembly. So there are no separate parts needed for this and a complex connection process is replaced by a simple folding a metal sheet.
    It is particularly advantageous when, according to claim 2, the metal sheets of the formwork element made of stainless steel, such as grade 1.4016 stainless steel exist. Then remains in the joint and in its neighborhood up to the height of the Abkantschenkel no corrosion-prone material, which improves the quality of the joint.
    The embodiment of the invention according to claim 3 has the advantage that the flat against each other and firmly connected to each other Abkantschenkel result in a stronger stiffening of the cover plates or the formwork panels. As a result, a thinner material of preferably only 0.5-1 mm thickness can be used for the metal sheets and still sufficient stiffening can be achieved. This aspect is particularly important when using expensive stainless steel for the cover plates.
    When using inventive shuttering elements for producing joints in soles or ceilings, it is expedient, the Abkantschenkel of the metal sheets at a slightly deviating from 90 ° angle, in particular by 15 ° from the vertical deviate edge. This improves the underflow of fresh concrete.
    The alignment of adjacent formwork elements during assembly in the plane of the formwork panels is simplified by the features of claims 8 and 9.
    The invention has the further object to improve a formwork according to the preamble of claim 1 and preferably also according to the preamble of claim 11 in use value and in particular a moisture penetration of the joint, damage to the joint by component movements and destruction of the footprint of the formwork element to avoid.
    In particular, if the cover plate and the spacers made of stainless steel, it can not be completely excluded that along the very smooth steel surface from the outside water creeps along and moisten the joint. This is particularly problematic when the moisture travels across the spacers and adjacent spacers between them to the bracket assembly. The latter consists of normal structural steel and is therefore prone to corrosion when wet with water.
    A water migration along the surface of the cover plate or the spacer can be according to the characterizing parts of claims 11 to 14 thereby avoid that on the sheet metal or profile surface elastic, strip-shaped sealing elements, in particular made of butyl rubber, with appropriate dimensions mounted, in particular glued be that they prevent a water migration.
    In adjoining and interconnected spacers prevents the measure of claim 15 passage of moisture between the adjacent spacers, so that the bracket assembly is protected against corrosion.
    The latter features can also be realized if the spacers are not formed by folding the cover plate but separately manufactured and attached to the cover plate.
    In expansion joints usually occur movements of the concrete components relative to the joint, for example, under the influence of temperature or due to shrinking operations. If there are screws in the formwork element which protrude laterally beyond the surface of the formwork panel, there is the risk that the concrete tears open during its movement relative to the screw and the joint wall is damaged. This problem is solved, regardless of the other structure of the formwork element, the feature of claim 16 by the protruding screw portion is covered by a plastic bushing, which is able to follow the concrete movements or this allows damage.
    If a shuttering element is supported by adjusting screws on a base, there is the risk of injury to the pad, especially if it is covered with a plastic film or a bituminous sheet because of the relatively small diameter of the screws. This problem is solved independently of the other construction of the formwork element by the features of claims 17 and 18.
    The invention will be explained below with reference to two embodiments. Show it:
    1 shows a schematic vertical section through an inventive formwork element for producing an expansion joint in a sole plate,
    1a is an exploded view of FIG. 1,
    2 shows a schematic section through a formwork element according to the invention for producing an expansion joint in a concrete wall,
    FIG. 2 a an exploded view of FIG. 2, FIG.
    Fig. 3 is a section corresponding to Fig.1, and
    Fig. 3a is an exploded view corresponding to Fig. 1a showing improvement features in the embodiment of Figs. 1 and 1a.
    The exemplary embodiment of the invention illustrated in FIGS. 1 and 1 a is a two-part formwork element 1, which serves to form a base plate on a cleanliness layer 2. The bottom plate is concreted in temporal succession of a construction section BA 1 and a construction section BA 2. Between the construction sections an expansion joint should be created.
    The formwork element 1 has an upper part 1a and a lower part 1b. The formwork element 1 comprises a two-part formwork panel 3, the upper part of which are designated 3a and the lower part of 3b. The two parts of the formwork panel 3 are constructed from a central joint insert 4, for example, a 20 mm thick mineral fiber board, and cover sheets 5 covering both sides of the joint insert. The cover plates 5 and the joint insert 4 are glued together by means of screws 6 firmly connected to each other, can be used in other material of the joint insert, z. B. Styrodur, but also glued together. At its upper edge in the installed state, the shuttering board 3 is enclosed by a joint finishing strip 7.
    As can be seen in particular from Fig. 1a, the cover plates 5 are composed of individual metal sheets 5a, 5b and 5c. Each metal sheet 5a-c is in the manner shown in the drawing on a horizontally extending edge in the installed state (panels 5a, c) or at both horizontal edges (panels 5b) folded so that 3 of the formwork panel 3 transversely projecting Abhang leg 8 arise. The cover plates 5a-c are arranged in the manner shown in FIG. 1 in the assembled state so that their Abkantschenkel 8 abut flat against each other. The Abkantschenkel 8 are, for example by spot welding, screws or rivets, firmly connected together in abutting state, so that double-walled spacers 8 'arise, the function of which will be explained below.
    The two parts of the formwork element 1 each have on both sides of the shuttering panel 3 serving for transporting and handling of the formwork element bracket assembly 9. Each bracket assembly consists of multi-bent metal rods, each having a plane parallel to the shuttering board 3 and in the installed state vertically extending portion 9a. For further details of the bracket arrangements 9 reference is made to DE 20 2014 004 206 U1, the disclosure content of which is hereby incorporated into the content of the present disclosure.
    The bracket assemblies 9 form in the assembled state shown in FIG. 1 a joint tape cage 10, which receives a conventional elastic joint tape 11. The joint tape 11 is received and clamped with its central, thickened part in a known manner in a slot 12 which is formed between the mutually facing edges of Schalungstafelteile 3a, 3b in that they are positioned at a certain distance from each other. Each bracket assembly 9 is fixedly connected to the associated shuttering panel portion 3a, 3b via the above-mentioned spacers 8 'by welding the exposed edges of the spacers 8' which are transverse to the bracket bar portions 9a with them. The in cross-section L- (metal sheets 5a, c in the panel edge area) or U- (panel 5b in the central region) shaped folds of the metal sheets 5a-c stiffen the cover plates 5 and thus the formwork panel 3 against bending under the concrete pressure. The stiffening effect is therefore particularly pronounced because the spacers 8 'consisting of the adjoining folding legs are double-layered. At the same time, the spacers 8 'form the connection between the parts 3a, 3b of the form panel 3 and the associated bracket assemblies 9 in such a way that the bracket assemblies with their parallel to the formwork panel 3 bar sections 9a sufficient for effective concrete coverage of the formwork panel distance from usually 30 mm in building construction and 60 mm in civil engineering. Concerning. the remaining dimensions of the formwork element is pointed to the left in Fig. 1 attached dimensions in mm.
    The Abkantschenkel are slightly inclined in the recognizable manner from the drawing relative to the plane of the formwork panel 3 and in the installed state of the formwork element upwardly to facilitate the inflow of the concrete. The inclination of the Abkantschenkel 8 relative to the plane of the metal sheets 5a-c is about 15 ° relative to the vertical to the sheet metal plane.
    The formwork element 1 is placed on the cleanliness layer 2 by means of support screws 13 and adjusted.
    In order to avoid the occurrence of corrosion in the expansion joint, a non-corrosive steel is used as the material for the metal sheets 5a-c and expediently also for the screws 6. For example, grade 4.1016 steel is suitable. Since the distance between the surfaces of the formwork panel 3 and the sections 9a of the bracket assemblies 9 is at least 30-60 mm, thereby found within the concrete cover of the expansion joint no corrosion-prone material, which improves the quality and in particular life of the joint. For the metal sheets 5a-c, due to the stiffening by the folds, a material thickness of 0.5-1.0 mm is sufficient, whereby an economical use of the expensive stainless steel material is guaranteed.
    As can be seen from the dimensions on the left side of FIG. 1, the maximum distance of the spacers 8 'from one another at a shuttering element designed for shuttering a sole plate or ceiling formwork element is a maximum of 250 mm.
    The exemplary embodiment according to FIGS. 2 and 2 a is a formwork element V for producing an expansion joint in a concrete wall which is cast as a result of the concreting sections BA 1 and BA 2. While the joint tape 11 in the installed state runs horizontally in the sole or ceiling formwork element according to FIG. 1 a, so that the sections of FIGS. 1 and 1 a are vertical sections, the joint tape is vertical in the installed state in the case of a wall formwork element according to FIGS. 2, 2 a aligned, so that the Fig. 2, 2a represent horizontal sections.
    In order to avoid repetition, the parts analogous to those shown in FIG. 1 a are identified by the same reference numerals in FIGS. 2, 2 a in this exemplary embodiment, so that a further detailed description is unnecessary. Deviating is only the one-piece design of the bracket assembly 9 'and their attachment to only one side of the shuttering panel 3 and that on the concreting BA 2 side facing.
    It is also different that in the formwork element according to Fig. 2, 2a, two middle, U-shaped bent sheet metal plates 5b instead of only one such metal sheet in Fig. 1,1a, are provided. Of course, of course, the number of average, U-shaped folded sheet metal depends on the size of the formwork element and therefore may be even greater than two.
    Deviating from Fig. 2, 2a with respect to Fig. 1, 1a further that the Abkantschenkel 8 of the formwork panel 3 verikal run to this and are not slightly bevelled.
    2, 2a is also that, on the opposite side of the cover sheet of the formwork panel counter sheet strips 5d, expediently also be arranged from stainless steel, which are bolted to the cover plate 5.
    Finally, the formwork element according to FIGS. 2, 2 a has the special feature that stop profiles 14 are fastened to the cover plates 5 on the upper, horizontal end edge of the formwork panel 3 in the installed state. These are U-shaped or L-shaped profiles which protrude beyond the edge of the shuttering board and serve as a stop for positioning an upwardly adjacent, identical formwork element. These stop profiles 14 are also made of stainless steel. They are expediently 60 mm wide and 30 mm deep.
    With regard to the other dimensions, reference is made to the dimensions in mm above and below FIG. 2. From these results, in particular, that the distance of the Abkantschenkel 8 and the spacer 8 'from each other in a formwork element for walls should be at most 150 mm.
    The embodiment of Fig. 3, 3a corresponds largely to that of FIG. 1,1a, wherein like reference numerals designate like parts, so that a re-description is unnecessary. Fig. 3, 3a show some improvements. These are explained below:
    In particular, if the cover plates 5 are made of stainless steel and thus have a particularly smooth surface, there is a risk that water creeps along the surface and moistens the joint. In particular, it can not be completely ruled out that water migrates between the adjoining folding legs 8 to the outside and reaches the bracket assemblies 9, which consist of structural steel and are therefore at risk of corrosion.
    To remedy this problem, provides the improvement of Fig. 3, 3a, that elastic, strip-shaped sealing elements 15 and 16 are arranged on the formwork element 1 so that they prevent ingress of water into the joint and a wandering of the water in the joint ,
    In the embodiment according to FIGS. 3, 3a, strip-shaped sealing elements 15 made of butyl rubber or another elastic material, which extend over the entire length of the formwork element 1 and the penetration of water, are glued along the lower edge of the formwork panel 3 on the outer sides of the cover sheets 5 from below into the joint prevent.
    The sealing element 15 is expediently a commercially available butyl adhesive tape whose cover strip is removed before concreting. It has a thickness of about 0.6 to 1.5 mm and a width of about 20 to 30 mm.
    Sealing elements in strip form can be mounted instead of along the edge of the formwork panel or in addition thereto at other locations of the cover plates, if there threatens a water migration.
    Further strip-shaped sealing elements 16 are arranged between adjoining and the double-walled spacers 8 'forming Abkantschenkeln 8 to prevent water migration from the interior of the joint to the bracket assemblies 9. The sealing elements 16 are expediently also made of butyl rubber.
    Their thickness should not be more than about 0.6 mm, so as not to hinder the installation of the folding leg 8 together. Their width should be no more than about 15 mm in order to leave space on both sides for welded joints between the folding legs.
    As can be seen in FIG. 1, the screws 6 holding together the various layers of the form panel 3 protrude with a threaded portion over the respective cover plate 5. When caused by shrinkage or heat influence movements of the concrete relative to the formwork element 1, the concrete can be torn at the rough threaded sections. This is prevented in the embodiment according to Fig. 3, 3a, characterized in that are pushed onto the protruding threaded portions sliding sleeves 17 made of plastic or other material which slides on the thread. Alternatively, a plug 20 of an elastic adhesive and sealant, such as the known under the trade name TRIGOBOND mass, can be applied to the threaded portions.
    In order to avoid damage to lying on the layer 2 cleanliness of the bitumen membranes by the support screws 13, the invention finally provides as further improvement, that are placed on the free ends of the support bolts 13 pivot feet 18, which have a support surface 19, whose surface a Many times the cross-sectional area of the support screws 13 is. The joint feet 18 are expediently made of plastic or rubber or other material that does not violate the film or bituminous sheet when transmitting the weight of the formwork element 1.
    The invention is not limited to the illustrated embodiments. In particular, the metal sheets could be folded instead of folded to form the profile legs serving as spacers. Although this would be somewhat more expensive to manufacture, it would have the advantage that each profile limb alone would be double-layered and thus more resistant to bending. In the flat juxtaposition of the profile legs would in this case even a 4-layer spacer.
    The number of cover plates depends on the size of the formwork element and can thus be greater or smaller than three.
    The stirrup assembly is out of the concrete overlay area so that the individual stirrups can be made of normal structural steel, while all metal elements within the concrete overlap area are advantageously made of stainless steel.
    In the production of press joints, a largely non-deformable material is used for the joint insert instead of a deformable material; if necessary, the cover plate itself forms the parting line insert.
    Some formwork panels are held together with rivets instead of screws 6. What has been said above about protruding threaded portions of the screws 6 and the slide sleeves 17 pushed onto them or the plugs 20 attached there, is also analogously applicable to protruding rivet sections.
    权利要求:
    Claims (19)
    [1]
    1. formwork element (1) for forming expansion or compression joints in concrete components, with a, in particular two-part formwork panel (3) having a both sides over the plane of the formwork panel (3) projecting water barrier part, in particular a joint tape (11) or sheet , and with a bracket arrangement (9) provided on at least one side of the shuttering board (3), which is spaced from its facing surface of the shuttering board (3) and forms a basket (10) for receiving the water-blocking part, the formwork panel (3) consists of a parting line insert (4) and at least one side fixed on this cover plates (5), by means of transversely of the formwork panel (3) projecting, consisting of profile legs spacer (8 ') fixed to the bracket assembly (9) are connected, characterized in that each cover plate (5) consists of U- or L-shaped folded or folded sheet metal plates (5a-c), the Abkant- b zw. Falzschenkel (8) form the spacers (8 ').
    [2]
    2. Shuttering element according to claim 1, characterized in that the metal sheets (5) made of stainless steel (stainless steel).
    [3]
    3. Shuttering element according to one of claims 1 and 2, characterized in that adjacent metal sheets (5a-c) lie flat against each other with their Abkantschenkeln (8) and in the region of the Abkantschenkel (8) firmly connected to each other, in particular welded.
    [4]
    4. Shuttering element according to one of claims 1-3, for sole or blankets, characterized in that the Abkantschenkel (8) are bent slightly from 90 °, in particular by about 15 °, deviating from the metal sheets (5a-c).
    [5]
    5. Shuttering element according to one of claims 1-4, characterized in that the distance of the folding or folding legs (8) is at shuttering elements for floor or ceiling tiles maximum about 250 mm and shuttering elements for walls at most about 150 mm.
    [6]
    6. Shuttering element according to one of claims 1-5, characterized in that the height of the folding or folding legs (8) is at least about 30-60 mm.
    [7]
    7. Shuttering element according to one of claims 1-6, characterized in that the thickness of the cover plates (5) is approximately 0.5-1 mm.
    [8]
    8. Shuttering element according to one of claims 1-7, characterized in that on an end face of the shuttering element (1) on the cover plates (5) over the front edge of the formwork panel (3) projecting stop profiles (14) are fixed, which in the installed state bump crossing serve as a stop for an adjacent formwork element.
    [9]
    9. Shuttering element according to claim 8, characterized in that the stop profiles (14) in cross-section L- or U-shaped.
    [10]
    10. Shuttering element according to claim 8 and / or 9, characterized in that the stop profiles (14) are made of stainless steel.
    [11]
    11. Formwork element (1) for forming expansion or compression joints in concrete components with a formwork panel (3), which is associated with a projecting on both sides of their plane water blocking member (11), and with at least one on one side of the formwork panel (3) at a distance arranged therefrom bracket assembly (9), wherein the formwork panel (3) consists of a parting line insert (4) and at least one on one side fixedly mounted on this cover plate (5), by means of transversely from the formwork panel (3) projecting from profile legs existing spacer (8 ') fixed to the bracket assembly (9) is connected, in particular according to one of claims 1 to 10, characterized in that on the cover plate (5) or the spacer (8') at least one elastic, strip-shaped sealing element ( 15 or 16) is mounted so that it prevents water migration along the supporting surface.
    [12]
    12. Shuttering element according to claim 11, characterized in that the sealing element (15 or 16) is a Butylklebeband.
    [13]
    13. Shuttering element according to claim 11 and / or 12, characterized in that the strip-shaped sealing element (15 or 16) has a thickness of about 0.5 to 1.8 mm and a width of about 15 to 30 mm.
    [14]
    14. Shuttering element according to one of claims 11 to 13, for producing a floor or ceiling slab, characterized in that the sealing element (15) along egg ner to the bottom (2) or parallel to the ceiling plane edge of the formwork panel (3) is mounted.
    [15]
    15. Shuttering element according to one of claims 11 to 13, wherein the adjacent Abkantschenkel (8) are fixedly interconnected, characterized in that a sealing element (16) between the Abkantschenkel (8) is mounted clamped.
    [16]
    16. Shuttering element, in particular according to one of claims 1 to 15, wherein the parting line insert (4) is connected to a cover plate (5) by means of screws (6) which protrude over the surface of the formwork panel (3), characterized in that the protruding portion of the screws (6) a sliding sleeve (17) made of plastic or other slidable material is pushed.
    [17]
    17. Shuttering element, in particular according to one of claims 1 to 16, in which are provided for setting up and adjusting support screws (13), characterized in that at the free ends of the support screws (13) pivot feet (18) attached to a support surface (19) are many times larger than the screw cross-section.
    [18]
    18. Shuttering element according to claim 17, characterized in that the articulated feet (18) made of rubber or plastic.
    [19]
    19. Shuttering element according to one of claims 1 to 15, wherein the parting line insert (4) with the cover plate (5) by means of screws (6) is connected, projecting over the surface of the shuttering panel (3), characterized in that the above Section of the screws (6) a plug (20) made of an elastic adhesive and sealant is applied.
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    同族专利:
    公开号 | 公开日
    AT518349B1|2018-03-15|
    DE102016208490B4|2022-01-27|
    AT518349A3|2017-11-15|
    DE102016208490A1|2017-09-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4412545A1|1994-04-12|1995-10-19|Pulsar Verlag Inh Elisabeth Ot|Joint for concrete sections|
    DE29806404U1|1998-04-08|1998-07-02|Tiletschke Lothar|Formwork element for an expansion joint between two concrete bodies|
    DE29821180U1|1998-11-26|2000-03-30|Hm Betonfertigteilwerk Hans Ma|Formwork system for buildings|
    DE20209468U1|2002-06-18|2002-08-29|Kaemmerling Christoph|An element|
    DE20318608U1|2003-12-02|2004-03-04|Msl Mathieu Schalungssysteme Und Lufttechnische Komponenten Gmbh|Method for producing an expansion joint in cast concrete with adjustable reinforcing linked by a ties and with cladding insert layers|
    DE102012018135B4|2012-09-13|2020-02-06|Fwr Solutions Gmbh|Abschalvorrichtung|
    DE202014004206U1|2014-05-20|2014-06-11|Fwr Solutions Gmbh|Shuttering element for forming expansion or compression joints in concrete components|GB2589540A|2019-08-20|2021-06-09|Acra Screed Ltd|Improvements in and relating to construction|
    CN111636273A|2020-06-09|2020-09-08|中国建筑第八工程局有限公司|Horizontal waterproof deformation joint structure and construction method thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102016203799|2016-03-09|
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