EP1724405B1 - Lost formwork and building wall produced with the same - Google Patents

Abstract

The shuttering is formed from components (4) in at least two connected layers. These are held together by clamps or braces accommodated in the internal space of the shuttering. A mounting and alignment component is fastened to a background. This has spacing corresponding with profile sections. The wall components (2) are positioned on this by their edges, especially along the line of the lower edges. They are interlocked in position in an upright axial direction with respect to their plane, for shuttering component connection.

Description

The invention relates to a permanent formwork for the erection of a concrete wall or the like. Concrete component according to the preamble of claim 1.

For the construction of concrete walls, in particular also Gobäudeaußenwänden formwork systems are known ( WO 03/097957 A1 ), which consist as a permanent formwork substantially of two wall elements, which are modularly composed of a plurality of plate-shaped Schatungsetementen, in such a way that the formwork elements form a plurality of vertically arranged one above the other rows or layers, in each of which several Schatungsetcmente to each other connect. The wall elements or shuttering walls are held by spacers parallel and spaced from each other, so that between these shuttering walls formwork space is formed for the introduction of concrete. The formwork elements consist for example of a thermally insulating material, such as polystyrene in different thicknesses and remain as a lost formwork, inter alia, for thermal insulation on the sides of the created concrete wall.

Also known is a lost formwork ( FR-A-2 853 339 ), which also has two formwork interior delimiting formwork walls, which are composed of a plurality of plate-shaped formwork elements and held by a plurality of, for example, wire braces formed spacers at the required distance from each other. The spacers are arranged with ironing or tab-like ends respectively on the outside of the formwork walls facing away from the formwork interior, in such a way that the formwork elements arranged one above the other can be connected to one another via these tab-like ends using screws. The disadvantage of this is that the bow-shaped spacers extend to the outside of the shuttering walls, so the tab-like ends so form foreign bodies on the surfaces of a concrete wall made with the lost formwork. Another disadvantage is that the joining of the formwork elements on the tabs and screws is not possible when using a soft heat-insulating material, for example when using polystyrene for the formwork elements.

The invention has the object of developing a formwork system or a formwork of this type to the effect that the adjoining rows or layers of formwork elements in the individual formwork walls for concreting sufficiently securely fixed together are held relative to each other.

To solve this problem, a formwork according to the patent claim 1 is formed. A building wall made using this formwork is the subject of claim 14.

In the invention, the connection or the bracing of the individual layers of formwork elements by appropriate Clamping and connecting means within the formwork interior, so that a simple and fast erection of the respective formwork is possible.

According to a second aspect of the invention, at least one adjusting or aligning and mounting element is used, which along an edge region of the formwork, for example along the lower region of the formwork u. a. holding the formwork walls or the local formwork elements relative to one another at a predetermined distance.

Various versions of the invention are possible. For example, it is possible
that the connecting, clamping and / or clamping means are formed by spacer elements extending between the shuttering walls and connecting or clamping elements connecting these elements,
and or
the formwork elements are provided, at least on their side facing the formwork interior, with grooves for fastening the spacer elements forming the connection, clamping and / or tensioning means,
and or
that the spacers are spacers between the formwork walls,
and or
in that the spacers form a plurality of spacer groups in which the spacers are provided successively in each case in an axial direction perpendicular to the rows, and in that at least part of the spacers of at least one spacer group are connected to one another,
and or
that the spacers are connected to one another by connection, clamping and / or tensioning elements provided on or acting on them,
and or
that the spacers are integrally formed,
and or
that the spacers are designed in several parts, consisting of at least two holding plates and at least one spacer provided between the holding plates,
and or
that the spacers are connected to each other at their holding plates,
and or
that the spacers are connected to one another at their spacers via connecting, clamping and / or clamping elements,
and or
that the spacers are produced in one piece with two holding plates which can be fastened to the formwork elements and a spacer which connects them,
and or
that the connecting elements are formed with locking webs,
and or
that the connecting elements are tabs, by means of which the connection of the spacers is made possible by linking,
and or
the connecting elements for the spacer group are continuous, for example rod-shaped or tubular,
and or
that the connecting elements are by latching, screwing or the like, attachable to the spacers connecting pieces, for example, sleeve-like connectors,
and or
the spacers or their retaining plates form a contact surface for the abutment or for supporting the spacer on a formwork element, for example on a peripheral surface of the formwork element,
and or
a post receptacle held on the inner surface of at least one wall element,
and or
the post receptacle has at least one retaining plate fastened to the shuttering wall and a tubular piece provided on the fastening plate,
and or
that the formwork elements are designed as substantially rectangular plates,
and or
that the formwork elements are formed on their periphery with strip-like projections and grooves for a tongue and groove connection of adjoining formwork elements,
and or
that the formwork elements made of a thermally insulating material, such as foamed plastic, for. B. Styrofoam exist,
and or
that the spacers are made of plastic or metal,
and or
that the connecting elements are made of metal or plastic,
and or
the formwork elements are formed on both surface sides with grooves having, for example, dovetail-shaped, T-shaped or circular grooves,
and or
in that at least one wall element of at least one row or layer is formed from a plurality of adjoining shuttering elements,
and or
that the at least one alignment and mounting element is made of metal and / or plastic,
and or
that the at least one alignment and mounting element is made of a flat material,
and or
in that the profile sections each form at least one sub-section which extends in the profile longitudinal direction and which projects into a groove on the Engages circumferential side of the wall elements,
and or
the at least two profile sections of the at least one alignment and mounting element are connected to one another by at least one wall section or web,
and or
a plurality of mounting profiles are provided along the formwork on the ground, and in that the mounting profiles are held and / or aligned on at least one retaining profile anchored in the ground,
and or
that the at least one retaining profile is a profile strip on which the mounting profiles are held by placing,
and or
that the substrate is a bottom plate, which is formed at least partially by using shuttering elements forming a lateral shuttering, and that the shuttering elements of a shuttering wall are respectively connected to the shuttering elements,
and or
that the shuttering elements with a surface form a basis for the aligned arrangement of the mounting profiles,
and or
the formwork walls consist of a plurality of formwork elements adjoining each other in at least two rows or layers,
and or
the formwork elements of the at least two adjoining layers are interconnected, clamped or braced by connection or tensioning means accommodated in the formwork interior,
and or
that in the formwork interior connection or clamping means are received, via which the at least one wall element is clamped or connected to the alignment and mounting element,
and or
in that the connecting or tensioning means are formed by detents on the at least one wall element or on spacers and on counter-detents on the alignment and mounting element.

The abovementioned features can each be used individually or in any combination in the formwork according to the invention.

Further developments of the invention are the subject of the dependent claims.

Fig. 1

in vereinfachter schematischer Darstellung eine aus mehreren übereinander gesetzten Schalungselementen errichtete verlorene Schalung für eine vertikale Betonwand;

Fig. 2

in vereinfachter Darstellung eine Draufsicht der Schalung im Bereich der Laibung einer Wandöffnung (Blickrichtung des Pfeils A der Figur 1);

Fig. 3

in vergrößerter Darstellung eine Draufsicht auf eine Schalungswand der verlorenen Schalung im Bereich eines der Abstandhalter;

Fig. 4 und 5

in vereinfachter Darstellung die Halteplatten der Abstandhalter an zwei übereinander angeordneten vertikalen Reihen oder Lagen von Schalungselementen;

Fig, 6

in vereinfachter Darstellung zwei übereinander angeordnete miteinander verbundene Mittelteile oder Distanzstücke der Abstandhalter bei einer weiteren Ausführungsform der Erfindung;

Fig. 7

ein Mittelteil oder Distanzstück eines Abstandhalters in Seitenansicht;

Fig. 8

einen Abstandhalter bei einer weiteren möglichen Ausführungsform, zusammen mit einem Verbindungsteil;

Fig. 9

eine Draufsicht auf den Abstandhalter der Figur 8;

Fig. 10

in perspektivischer Teildarstellung eine Schalungswand, zusammen mit einem an der Schalungswand gehaltenen Abstandhalter;

Fig. 11

in Teildarstellung einen Schnitt durch ein Schalungselement im Bereich des oberen Längsrandes;

Fig. 12

in perspektivischer Teildarstellung zwei Schalungswände zusammen mit einer an einer Schalungswand im Schalungsinnenraum befestigten Pfostenaufnahme;

Fig. 13

in vereinfachter Darstellung einen Schnitt durch die verlorene Schalung in einem unteren Bereich;

Fig. 14

eine Darstellung ähnlich Fig. 13 bei einer weiteren möglichen Ausführungsform.

The invention will be explained in more detail below with reference to the figures of embodiments. Show it:

Fig. 1

in a simplified schematic representation of a built of several superimposed formwork elements permanent formwork for a vertical concrete wall;

Fig. 2

in a simplified representation of a plan view of the formwork in the region of the soffit of a wall opening (viewing direction of the arrow A of FIG. 1 );

Fig. 3

in an enlarged view a plan view of a formwork wall of the lost formwork in the region of one of the spacers;

4 and 5

in a simplified representation of the holding plates of the spacers on two superimposed vertical rows or layers of formwork elements;

Fig. 6

in a simplified representation of two superimposed interconnected middle parts or spacers of the spacers in a further embodiment of the invention;

Fig. 7

a middle part or spacer of a spacer in side view;

Fig. 8

a spacer in another possible embodiment, together with a connecting part;

Fig. 9

a plan view of the spacer of FIG. 8 ;

Fig. 10

in a perspective partial view of a formwork wall, together with a held on the shuttering wall spacer;

Fig. 11

in partial view a section through a formwork element in the region of the upper longitudinal edge;

Fig. 12

in a perspective partial view two formwork walls together with an attached to a formwork wall in the formwork interior post receptacle;

Fig. 13

in a simplified representation of a section through the lost formwork in a lower area;

Fig. 14

a representation similar Fig. 13 in another possible embodiment.

In the figures, 1 denotes a permanent formwork for creating a concrete wall. The formwork consists essentially of two shuttering walls 2, which are spaced from each other to form a shuttering interior 1.1 via a plurality of Abstandhaltem 3 and connected to each other. The with their surface sides, for example in vertical planes arranged parallel shuttering walls 2 each consist of a plurality of shuttering elements 4, which are substantially rectangular plates made of a suitable, preferably heat-insulating material, for example of foamed plastic, for. B. made of styrofoam. Where the concrete wall to be created has an opening, for example a door or window opening, or ends, the shuttering interior 1.1 is closed by a arranged between the circuit walls 2 closing element 5, which is made for example of galvanized sheet steel, plastic or rigid foam. The deformation of the steel sheet can be done by edging roll forming or deep drawing and prior notching.

The formwork elements 4 are provided in each formwork wall 2 in a plurality of horizontal rows or layers and in these layers as well as from layer to layer next to each other and formed at their peripheral sides 4.1 - 4.4 each with protruding, strip-like projections or matching grooves, so that the shuttering elements. 4 each with a tongue and groove connection to each other and thereby, inter alia, a formwork interior 1.1 against leakage of Concrete or cement milk when concreting tightly closing formwork wall 2 forms.

For fixing the spacers 3 as well as the end elements 5, the formwork elements 4 at their the shuttering interior 1.1 side facing each have a plurality of dovetailed or T-shaped grooves 6, which in an axial direction perpendicular to the longer circumferential or longitudinal sides 4.1 and 4.2 of the rectangular Shuttering elements 4 extend, are open at the upper longitudinal side 4.1 and end at a distance from the lower longitudinal side 4.2 or are formed continuously.

In the in the Figures 3-5 illustrated embodiment, the spacers 3 are each formed in several parts, d, h. they each consist of two holding plates 7 and a spacer or spacer 8 forming the actual spacer. Both the holding plates 7 and the spacers 8 are each molded parts made of plastic and / or metal. The holding plates 7 are attached directly to the inner surface of the formwork elements 4 adjacent to this and have for this purpose on a surface side at least one projection 9, which is received in a groove 6 fit or positive fit. On the opposite surface side, each retaining plate 7 is provided with at least one dovetail-shaped or T-shaped or circular groove 10 into which a projection 11 of the spacer 8 in question engages. The grooves 10 in the holding plates 7 are in turn formed so that they are open on one side of the holding plate, ie when mounted formwork 1 usually on the upper horizontal side 7.1 of each holding plate 7 and closed on the opposite side 7.2 of the holding plate 7 so that insertion of the spacers 8 with their projections 11 in the grooves 10 from above is possible, the spacers 8 but after insertion have a defined end position on the holding plates 7, from which the spacers 8 not relative to the holding plates further down can be moved. The connection can also be carried out without holding plates.

It has now been found that, among other things, a connection of the layers of the formwork elements 4 arranged one above the other in the vertical direction is necessary. To achieve this, in the embodiment of the Figures 3 - 5 at the lower edge 7.2 of the rectangular holding plates 7 integrally molded with these holding plates, but away from the holding plates latching lugs 12 are provided, each engage with mounted formwork 1 in counter-detents 13 in the upper narrow side 7.1 an underlying plate 7, the part of a spacer 3, which are associated with an underlying layer of formwork elements 4. About the notches 12 and counter-latches 13 thus the vertically superposed holding plates 7 and thus also the vertically superposed formwork elements 4 are interconnected, so that in any case during the concreting the formwork elements 4 are also held in the vertical direction and thus Gaps between the vertically successive formwork elements 4, from which (interstices) could escape concrete, are avoided. The horizontal bond between the adjoining formwork elements 4 is made for example by appropriate shaping of the sides 4.1 and 4.2, for example by matching projections and openings or holding plates 7, which overlap the connection between adjacent formwork elements.

The FIGS. 6 and 7 show an embodiment in which the vertical connection between the individual layers of the formwork elements 4 does not take place on holding plates 7, but on the spacers 8 corresponding spacers 8a of the spacers 3a. These spacers have in the area of their in the FIGS. 6 and 7 upper side 8a.1 two additional openings 14 and on their lower side in these figures 8a.2 wegstehende on this side finger-like extensions 15 which are each provided at its end with a molded locking pin 16. By pressing the locking pin 16 of a spacer 8a in the openings 14 of the spacer 8a of a subordinate layer of formwork elements associated spacer 8a, the vertical connection not only the spacers, but also the adjoining in the vertical direction layers of formwork elements 4 is reached via these spacers , Like in the FIG. 6 also shown, each spacer 8a has on its projection 11 locking lugs 17 which engage in corresponding counter-detents in the groove 10 of the associated holding plate 7, so that after connecting the spacer 8a with the holding plates 7, a release of the spacer is effectively prevented by these holding plates.

The FIGS. 8 and 9 show as a further possible embodiment, a spacer 8b, which corresponds in function to the spacer 8 or 8a and is each part of a spacer 3b. In this embodiment, connecting sleeves 18 are provided in each case in the region of the upper narrow side 8b.1 and the lower narrow side 8b.2, which, for example, are made in one piece with the spacer 8b made of plastic, foam (eg hard foam) or metal. For connecting vertical superposed spacers 8b and thus for connecting the formwork elements 4 in the vertical direction, for example, rod-shaped connecting elements 19 are passed through the coaxially arranged connecting sleeves 18, which are then held in the connecting sleeves 18 by a press fit. These rod-shaped connecting elements are for example part of the reinforcing steel reinforcement of the concrete wall. Furthermore, there is also the possibility of connecting the vertical superimposed spacers 8b by individual connecting elements 20, for example, sleeve-like connecting elements 20, which are then held by screwing, latching, etc. on the connecting sleeves 18, in such a way that by the same axis interconnected sleeves and sleeve-like fasteners 20 are formed through apertures for insertion of a reinforcing rod, which in turn is part of the concrete reinforcement. By means of the continuous connecting element 19, all spacers 8b arranged one above the other in the vertical direction and thus all formwork elements arranged one above the other in the vertical direction can then be braced against one another.

As the FIGS. 8 and 9 In particular, show the spacer 8b in the region of each connecting sleeve 18 has a reinforcing wall portion 21 which with two opposite sides of additional abutment or support surfaces for the spacer 8b on the associated holding plate 7 forms.

The FIG. 10 shows as a further possible embodiment, a spacer 3c, the support plate 7c is made in one piece with the spacer 8c. A special feature of the spacer 3c is also that the holding plate 7c, which in turn is secured in the same manner as the holding plate 7 on the corresponding formwork element 4, above an angled portion 21, with which the spacer 3c against the upper longitudinal side 4.1 of the relevant formwork element 4 is applied, for a vertical dimensional accuracy of the system or the arrangement of the spacers.

As in particular in the FIG. 11 shown, the formwork elements 4 are made at its upper longitudinal edge 4.1 with a continuous strip-like projection 23, with a plurality of pin-like projections 24 and in addition with a continuous groove 25. The lower longitudinal side 4.2 of each formwork element 4 is shaped accordingly, ie with a matching, continuous groove for the projection 23, with a plurality of openings for each pin 24 and with a strip-like projection for the groove 25. By the of the projection 23 and the groove 25 and the matching groove or the matching projection formed tongue and groove connections, the tight seal is guaranteed. By provided in a predetermined pitch projections 24 and the associated openings on the lower longitudinal side 4.2 a positive connection between adjacent shuttering elements 4 in the axial direction of these long sides is achieved.

The spacer 7c, in turn, on the spacer 8c on the connecting sleeves 18, via which a bracing of the individual spacers and thus the formwork elements 4 in the vertical direction is possible.

The FIG. 12 shows as another, attachable to the inside of formwork elements 4 functional element a post receptacle 26. This post receptacle 26th consists of a holding plate 27, which corresponds for example to the holding plate 7c and which, like the holding plates of the spacers, is fastened with at least one projection in at least one groove 6 of a formwork element. On the holding plate 27 a the actual post recording forming pipe section 28 is attached, which in the illustrated embodiment has a square, rectangular or circular inner and outer cross-section and is oriented with its axis in the assembled state of the post holder 26 in the vertical direction. The pipe section 28 is closed at its lower end and closed at its upper end or there by a removable closure, so that penetration of concrete into the pipe section 28 during concreting is prevented. The post holder 26 is made of metal, for. B, made of steel or plastic. The post recording can also be performed without a holding plate or in one piece with this.

The FIG. 12 shows in detail the situation in the region of the connection between a prepared using the formwork 1 vertical concrete wall 29 and a concrete ceiling 30. Those formwork elements 4, where the post receptacles 26 are held, form the lateral shuttering for the concrete floor 30. Die Rohrstücke 28 der Post receiving 26 reach with their lower length in the concrete wall 29 and are thus anchored in this concrete wall. This design allows, for example, a procedure in the form that when concreting the concrete wall 29 on a formwork wall 2 of the formwork 1 at the end of the concreting the later shuttering for the ceiling 30 forming formwork elements 4 are placed, in such a way that the at this Formwork elements provided post receivers 26 extend with their pipe sections 28 in the concrete of the concrete wall. After setting of the concrete of the concrete wall 29 then the shuttering for the subsequently to be created ceiling 30 serving formwork elements 4 are held on the post receptacle 26, the post receptacle 26 or the support plate 27 have on its upper side a stop formed by a further plate 27.1 , which rests against the upper longitudinal side 4.1 of the formwork element 4 and thereby ensures the dimensional accuracy of the built-in post holder 26.

The FIG. 13 shows a section through the lower portion of a lost formwork 1, for establishing a vertical concrete wall 31 on a substrate 32, for example on a foundation or a floor ceiling. The formwork 1 in turn consists of the two formwork walls 2, which are each formed by a plurality of adjoining formwork elements 4, as inter alia in connection with the FIGS. 1 and 2 has been described.

The peculiarity of the lost formwork 1 in this embodiment is the use of a mounting profile or adjusting element 33 which also serves as a spacer and which is made, for example, of sheet steel, preferably of a corrosion-resistant steel and / or a corrosion-preventing coating, for example galvanized. in such a way that this alignment and mounting element 33 two outer and one longitudinal side of each of the alignment and mounting element 33 forming profile section 34 and a profile section 34 connecting web 35 forms. For the alignment and mounting element 33, other materials, e.g. Plastic, also foam.

The profile sections 34 and the flat or substantially planar web 35 extend over the entire length of the alignment and mounting element 33. In the web 35, for example, a plurality of large-sized openings or windows 36 are provided.

For erecting the concrete wall 31, the alignment and mounting element 33 is laid on the substrate 32 corresponding to the course of the concrete wall 31 to be constructed and fixed in a suitable manner, for example using fasteners, eg with dowels and screws, possibly using a relining 37 leveled or adjusted between the alignment and mounting element 33 and the substrate 32 such that the outer, mutually parallel profile sections 34 supporting or supporting surfaces for the underside of the respective formwork wall 2 and 4.2 for the bottom Forming elements 4 each at a predetermined level, for example at the same level form, The forming the formwork panels 2 forming formwork elements 4 and the respective formwork wall 2 in total are then held in a predetermined position on the laid on the substrate 32 alignment and mounting element 33 ,

The profile section 34 are formed by multiple bending of the flat material used for the alignment and mounting element 33 such that they each have an angular portion 34.1, which lies with a leg in a plane parallel to the plane of the web 35 and at a distance therefrom and a Form part of the contact surface for the lower peripheral side 4.2 of the formwork elements 4, and form another, formed substantially as a U-section section 4.2, which engages in a groove 38 which is provided for example for the strip-like projections 23, and by a positionally accurate Fixation of the formwork elements 4 with respect to the alignment and mounting element 33 is achieved. The outside, in the FIG. 13 vertical leg of the portion 34.2 extends to the level of the substrate 32 and there is angled to form a foot element 34.3, with which the profile section 34 is also supported on the ground 32.

On the vertical leg of the angular section 34.1 an angle section 39 is attached to the web 35 side facing, which also extends over the entire length of the alignment and mounting member 33 and which also forms part of the support surface for the lower peripheral side 4.2 of the formwork elements 4 and with a protruding edge region at the same time forms a counter-latching 13 corresponding counter-latch on which the notches 12 of the provided on the lower formwork elements 4 spacers 3 engage so as to release the formwork elements 4 of the alignment in the vertical direction - And mounting member 33 to provide preventive connection. For connecting the shuttering walls 2 with the alignment and mounting member 33 but other means are possible, for example, the connecting or clamping elements 19 and / or 20th

Between the bottom of each groove 38 and the portion 34.2, a seal 40, for example, a sealing strip is provided, which seals the transition between the shuttering elements 4 and the outer profile sections 34, More seals 41 and sealing strips, for example, between each edge region of the alignment and mounting element 33 and the substrate 32 is provided.

In order to simplify the Ausjustieren the alignment and mounting element 33 on the substrate 32, 34 adjustment elements 42 may be provided on the profile sections, which in the simplest case from a recorded in the respective profile section 34 and in particular in the local section 34.2 Justierklotz 42.1 with Justier threaded pins 42.2 consist.

Like in the FIG. 13 indicated, 32 can continue to be placed on the substrate 32 laid sealing foils 43, which then extend into the respective recess 38 and there between the portion 34.2 and the seal 40 and the edge of the groove 38 are fixed, for example by clamping.

In the embodiment described above, it has been assumed that the mounting element 33 extends as a corresponding profile in each case over the entire length or over a large part of the long vertical concrete wall 31. In principle, however, it is also possible to provide a multiplicity of mounting elements 33, which then adjoin one another on the base 32 in the direction of the concrete wall or the formwork, are spaced from one another and are each designed as narrow, bow-shaped elements.

The FIG. 14 shows again a section through the lower portion of a lost formwork or through the connection area between a bottom plate 44 made of concrete and a subsequent to this bottom plate, upstanding and produced using the lost formwork 1 and the formwork elements 4 concrete wall 45, in the lower area, that is, where the formwork elements 4 get up on the top of the finished or concreted bottom plate 45 are the mounting element 33 corresponding serving as spacers mounting members 33 a, which are each made in the same manner as the mounting member 33 made of sheet steel by bending, including with the two, the profile sections 34 corresponding profile sections 34 a, which in turn mounted shuttering elements 4 in the grooves 38 extend to the lower peripheral side 4.2 of the lower formwork elements 4 and thereby fix 4 and keep them at the required distance.

In this embodiment, the respective mounting member 33a in the longitudinal direction of the formwork, ie in the representation of FIG. 14 in the direction perpendicular to the plane of this figure only very narrow, ie formed as a narrow bracket, which is oriented with its longitudinal extent in the horizontal direction (parallel to the top of the bottom plate 44) and perpendicular to the inner and outer surfaces of the created concrete wall 45.

In the course or in the longitudinal direction of the formwork 1 or concrete wall 45 a plurality of such mounting elements 33a is spaced from each other and provided following each other. In order to align and fix the individual mounting elements 33a, a retaining profile 46 extending along the entire formwork or concrete wall 45 and in the illustrated embodiment in the middle of the formwork is provided on the upper side of the concrete slab 44. This is made for example of steel, aluminum or aluminum alloy or plastic, with a substantially cross-shaped cross-section, which is composed of a vertical profile sections 46.1 and two projecting from opposite sides of the profile section 46.1 strip-like profile sections 46.2.

After concreting the bottom plate 44, the holding profile 46 is pressed with a lower partial length of its profile section 46.1 in the still soft concrete of the bottom plate 44 that it abuts with the Profilbabschnitten 46.2 against the top of the bottom plate 44, the profile section 46.1 with a partial length on the Top of the bottom plate 44 protrudes and the after setting of the concrete anchored in the bottom plate 44 holding profile 46 extends over the entire length of the concrete wall 45 to be erected.

Each mounting element 33a is provided in the middle between its two profile sections 34a with a profile section 47, with which it can be placed fittingly on the anchored in the bottom plate 44 retaining profile 46 and thus fixed in position on the bottom plate 44 and held.

There are gaps between the mounting elements for the passage of terminal reinforcements 48 that are partially anchored in the floor panel 44 and partially in the concrete wall 45.

The bottom plate 44 is made in the illustrated embodiment, a multilayer, namely from a lower layer 44.1 of lean concrete and an overlying, the actual bottom plate forming layer 44.2 greater thickness. For concreting the layer 44.2 a shuttering 49 is used, which consists of several along the relevant side of the bottom plate contiguous angular Abschalelementen 50 which form the lateral boundary or shuttering of the space occupied by the concrete when concreting the layer 44.2. The Abschalelemente 50 are provided with their lower, horizontal legs 50.1 aligned in each case via a leveling layer 51, for example via a layer of a leveling mortar on top of the layer 44.1 of lean concrete.

Like in the FIG. 14 Further indicated, the Abschalelemente 50 are preferably provided on the upper end face of their vertical leg 50.2 with grooves 52, then engage the projections on the lower peripheral side 4.2 of the formwork elements 4, so as to form a tight transition between the Abschalelementen 50 and the overlying formwork elements 4 to reach.

As a material for the Abschalelemente 50 is in particular a plastic foam or a fiber-containing or fiber-reinforced material, For example, fiber concrete. Other materials are suitable for the Abschalelemente 50, such as foam glass.

The aligned on the layer 44.1 through the leveling layer 51 arranged Abschalelemente 50 determine with their vertical legs 50.2 or with the upper end face 50.3 the level of the top of the bottom plate 44 and form with the end face 50.3 at the same time also the base against which the mounting elements 33a with rest on its long side.

With 53 is still an outer Abschalhilfe designated, the u.a. also forms the lateral shuttering during the production of the layer 44.1 and forms an additional, external support element for the Abschalelemente 50 and for the subsequent shuttering in the vertical direction formwork elements 4.

The invention has been described above by means of exemplary embodiments. It is understood that numerous changes and modifications are possible without thereby departing from the inventive idea of the invention. Thus, it is in particular also possible to design the spacer or its spacer in such a way that a connection or clamping of the spacers arranged one above the other in the vertical direction is achieved via at least two connecting elements, in each case via two continuous spacers arranged one above the other in the vertical direction common connecting elements corresponding to the connecting elements 19 or a plurality of individual connecting elements corresponding to the connecting elements 20th

Furthermore, it is also possible to form the continuous connecting or Verspannelemente 19 as a piece of pipe, as well as the individual connecting or Verspannelemente 20 and / or by appropriate screws and / or nuts to achieve a compensation in the vertical direction. In particular, it is possible to provide the individual connecting or bracing elements 20 on their outer surface with locking lugs, which then when inserted into the Lock connection sleeves 18 on counter-detents formed in these connection sleeves.

It is also possible to provide the necessary for the vertical connection of the formwork elements 4 elements separately from the spacers or in addition to these, for example in the form of z. B. plate-shaped clamping elements extending between the formwork elements 4 of the opposite formwork walls 2 perpendicular to these formwork walls, are held to the formwork elements 4, for example by resting on the upper and lower longitudinal sides 4.1 and 4.2 and through the continuous connecting or clamping elements passed through.

Also for the formation of the upper and lower edges or longitudinal sides 4.1 and 4.2 of the formwork elements further alternatives are possible, which ensure a positive and direct connection. The embodiments shown can also be designed and arranged so that combinations with each other are possible.

Furthermore, it is possible to provide the fastening grooves 6 also on both surface sides of the formwork element 4. The grooves 6 on the side facing away from the formwork interior side of the formwork elements then serve, for example, for receiving attachment units or elements, for example, for Be or coverings, or for direct inclusion of clothing or coverings. Furthermore, these grooves also serve for the positive anchoring of a plaster or other, applied to the created wall surface coating.

LIST OF REFERENCE NUMBERS

1

lost formwork

1.1

Formwork inner space

2

formwork wall

3, 3a-3c

spacer

4

An element

4.1 - 4.4

Circumferential sides of the formwork element

5

termination element

6

Fixing groove inside and / or outside

7, 7a - 7c

Retaining plate

7.1, 7.2

edge

8, 8a-8c

spacer

8a, 1, 8a.2

page

9

head Start

10

groove

11

head Start

12

latching web

13

counter-latching

14

opening

15

renewal

16

rest

17

rest

18

connection sleeve

19

Connecting or tensioning element

20

Connecting or tensioning element

21

reinforcing wall section

22

angling

23

strip-like projection

24

spigot

25

groove

26

post receiving

27

Retaining plate

27.1

attack

28

pipe section

29

concrete wall

30

concrete ceiling

31

concrete wall

32

underground

33, 33a

Assembly and connection profile

34, 34a

profile section

34.1, 34.2

part Of

34.3

angling

35

web

36

Opening or window in the bridge 35

37

relining

38

groove

39

angle section

40, 41

Seal or sealing tape

42

adjusting

42.1

Justierklotz

42.2

Readjustment threaded pin

43

sealing film

44

baseplate

44.1, 44.2

Layer of the bottom plate 44

45

concrete wall

46

Fixing and holding profile

46.1,46.2

profile section

47

profile section

48

Reinforcing steel of a connection reinforcement

49

formwork

50

formwork

50.1, 50.2

Legs of Abschalelementes

50.3

Face of the vertical leg

51

leveling layer

52

groove

53

Abschalhilfe

Claims (14)

1. Concealed shuttering for erecting a concrete wall or similar concrete structural element, with at least two wall elements (2) spaced from one another by spacers (3, 3a-3c) to form a shuttering interior space (1.1) and which each consist of several shuttering elements (4) adjoining one another in at least two rows or layers, wherein the shuttering elements (4) of the at least two adjoining layers are connected to one another by connecting elements and tensioned, characterised in that the connecting elements which are housed in the shuttering interior space (1.1) connect the spacers (3, 3a-3c) to one another so that they are tensioned.
2. Shuttering according to claim 1 characterised in that the connecting elements are bracket plates (15) by way of which the connection of the spacers is possible through interlocking or snap-fit connection or that the connecting elements are formed with detent webs (12).
3. Shuttering according to claim 1 characterised in that the connecting elements are formed in one continuous length, by way of example as rods or tubes, for each one group of spacers.
4. Shuttering according to claim 1 characterised in that the connecting elements are connector members, by way of example, sleeve-type connector members (20) which can be fixed on the spacers by detent locking, screw-locking or the like.
5. Shuttering according to one of the preceding claims characterised in that the spacers or their retaining plates (7c) form a contact bearing face for bearing or supporting the spacer on a shuttering element (4), by way of example on a peripheral surface (4.1) of the shuttering element (4).
6. Shuttering according to one of the preceding claims characterised in that the spacers (3, 3a, 3b) are formed in one piece or multi-pieced, namely consisting of at least two retaining plates (7, 7c) and of at least one distance member (8, 8a, 8b) provided between the retaining plates, and that the spacers (3) are connected together along their retaining plates (7, 7c) and/or distance members (8a-8c) by way of the connecting elements (19, 20).
7. Shuttering according to one of the preceding claims characterised in that the spacers are made in one piece with two retaining plates (7c) fixable on the shuttering elements (4) and with one distance member (8c) connecting these together.
8. Shuttering according to one of the preceding claims characterised by a post socket (26) held on the internal face of at least one wall element (2) wherein the post socket has at least one retaining plate fixed on the shuttering wall (2) as well as one tubular member (28) provided on the fixing plate.
9. Shuttering according to one of the preceding claims characterised in that the shuttering elements (4) are formed on both surface sides with grooves (6) with by way of example dovetailed-shaped, T-shaped or circular-shaped grooves.
10. Shuttering according to one of the preceding claims characterised in that the spacers (3, 3a-3c) and/or the connecting elements (13, 15, 19,20) are made of plastics or metal.
11. Shuttering according to one of the preceding claims characterised in that the profiled sections (34, 34a) each form at least one section part (34.2) extending in the profile longitudinal direction upstanding strip-like to engage in a groove (38) on the peripheral side (4.2) of the wall elements (2).
12. Shuttering according to one of the preceding claims characterised in that connecting or tensioning means are housed in the interior space of the shuttering and used to tension and/or connect the at least one wall element (2) to an alignment and assembly element (33,33a).
13. Shuttering according to claim 12 characterised in that the connecting or tensioning means which tension the at least one wall element (2) with the alignment and assembly element (33, 33a) are formed by notches on the spacers as well as by counter detent members (39) on the alignment and assembly element.
14. Building wall made by using shuttering according to one of claims 1 to 3.

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