EP2348162B1 - Method and device for sealing a separation gap and anchoring seal for a separation joint - Google Patents

Description

The invention relates to a device for sealing a parting line to be filled between concrete wall elements and a method for sealing a parting line to be filled between concrete wall elements.

The WO 03/008737 A2 shows a device for bonding precast concrete elements, consisting of at least one cable loop, which is anchored at one end in a precast concrete part and the other loop-like end cooperates with an inserted into the precast concrete element or arranged on the precast concrete holding device to the cable loop during the manufacture of the Prevent concrete prefabricate bent approximately at right angles elastic and release for the composite, with at least one fixing the rope loop holds in the upright position of the composite. As a fixing z. B. provided a retaining clip. Subject of the WO 03/008737 A2 is thus a connecting device for two adjoining precast concrete parts, wherein the fixing means or the retaining clip holds the cable loop both after the installation of the precast concrete part and during the casting of the gap between two precast concrete parts in the upright position.

From the DE 10 2008 013 206 A1 For example, there has been known a method for joining precast concrete parts, in which a joint seal is made with a sealing mortar using an additional tool. This tool with two brush blades allows a temporary sealing of the parting line when filling the parting line with the sealing mortar, by tracking the two spread sheets along the parting line when the sealing mortar is fed become. This method is complicated by the application of the separate Dichtmönels and the required curing time of this sealant mortar and a significant disadvantage is that the carrying capacity of this sealant mortar can not be calculated sufficiently reliable.

It is also known to inject separating joints with mounting foam and thus close, so that during the subsequent concreting the concrete sludge can not escape through the parting line. After hardening of the concrete, the mounting foam must be laboriously scraped out and the surface of the filled parting line plastered evenly.

From the DE 88 09 399 U1 a preformed joint seal has become known for joints between prefabricated reinforced concrete precast elements which become a shell of a container. The joint seal is a lip seal with an elastic shaft, which is arranged in the joint between opposite outer webs of the two adjacent to each other on the joint precast reinforced concrete elements. In the joint filled filling mass presses against the joint seal, which is supported on the outer webs of the two reinforced concrete precast. After hardening of the filling compound, the preformed joint seal remains in the joint. This type of joint seal is therefore relatively complex, since it is not reusable.

The object of the invention is to provide a device mentioned above, which allows the production of a filled parting line with simple means in a cost effective manner, as well as to provide a method mentioned, which simplifies the production of a Trennfugenverfullung.

The object is achieved by a device having the features of claim 1 and by a method having the features of claim 6.

Advantageous embodiments of the invention are specified in the dependent claims.

According to the method of the invention, a sealing strip with at least one associated joint anchor is first brought into a position sealing the parting line to the concrete wall elements delimiting the parting line, wherein the joint anchor is brought into a mounting position which penetrates the parting line. Then, the sealing strip is biased by the joint anchor, which is brought with a head portion in at least one of the concrete wall elements cross-engaging or engaging behind fastening position against the concrete wall elements. Subsequently, the parting line is filled with Fugenfüllmaterial and after curing of Fugenfüllmaterials one of the sealing strip associated base portion of the joint anchor is separated from the Fugenfüllmaterial held head portion and the sealing strip and the separated base portion are removed from the parting line. The head section held by the joint filling material remains in the joint filling material.

A sealing strip for the method according to the invention or the device according to the invention is an elongate flat or profiled component which has one or more surfaces, which may have different shapes, wherein at least one of the surfaces covers a parting line or even extends into a parting line and this parting line between Cover two concrete wall elements largely tight. The required tightness depends on the joint filling material used and on the surface quality of the filled parting line to be provided. The sealing strip is a sufficiently rigid component made of metal, plastic or z. B. is made of a composite material and due to its material properties is often reusable.

A concrete wall element is a component that is used for producing a wall or a ceiling of a building of any kind or even a wall, said joints between two concrete wall elements or between a concrete wall element and an adjacent different type of component that limits the parting line, at least partially a concrete slurry or other liquid, flowable or pasty Fugenfüllmaterial is filled, which then solidifies or hardens and thus remains in the parting line. The parting line to be filled can be arranged horizontally, vertically or in principle in any spatial orientation.

A joint anchor is a holding and fastening part, which is suitable in any embodiment, to attach the sealing strip on directly or indirectly introduced holding forces on the parting line or the parting line forming and limiting components and releasably secure. The joint anchor is positioned during assembly before, with or after attaching the sealing strip to and in the parting line. Each sealing strip is fastened with at least one joint anchor. Several identical or different joint anchors a sealing strip, which are spaced apart along the sealing strip, can be brought simultaneously or sequentially in their mounting position in which they pass through the parting line.

Each joint anchor is filled with a z. B. referred to as a head portion front portion in an at least one of the concrete wall elements engages behind the fastening position and indirectly indirectly via at least one auxiliary component, which is arranged on the component or concrete wall element, applied and supported, the attachment is in particular form-fitting or frictionally engaged. A positive holding engagement can, for. B. on an edge on one of the sealing strip opposite back or inside of the parting line limiting element or concrete wall element done.

Under the engaging behind at least one of the concrete wall elements is also a definition of the joint anchor or its head portion in the parting line understood, this definition frictionally or z. B. in a groove or on a projection which is formed in one of the parting line facing surface of the component or concrete wall element or on an inserted auxiliary component, can take place.

Depending on the design of the head section or an anchor head of the joint anchor is therefore an attachment of the joint anchor only on one of Components or concrete wall elements or made on both components or concrete wall elements.

Subsequently, the parting line is filled with joint filling material. The filling takes place z. B. when pouring hollow or double wall elements, which are placed adjacent to form a parting line adjacent and their cavities is filled in a known manner with Betonschlemme. After curing of the joint filling material, which is formed in particular by the Betonschlemme, a portion of the joint anchor, which is also referred to as the base portion and which is opposite to its head portion, separated from the joint filling material held by the head portion. The base section contains the section of the joint anchor, which is in retaining force engagement with the sealing strip during attachment. Thus, the force acting on the sealing strip clamping force is released, so that both the base portion of the joint anchor as well as the sealing strip can be removed from the parting line. Only the head portion held by the joint filling material remains in the joint filling material and thus in the parting line, but in a position which is largely invisible from the front side. The sealing strip can now be reused on another parting line with the method according to the invention, with new joint anchors being used.

The handling of the joint anchor is preferably done manually, z. B. via a handle on the head portion or anchor head opposite end or base portion of the joint anchor, positioned over the joint anchor and over which a tensile force can be applied. However, a mechanical actuation of the joint anchor could also be provided by means of a corresponding handling device.

Preferably, the joint anchor is adjusted about its longitudinal axis such that at least one projection or anchor hook of the anchor head engages or engages behind at least one of the concrete wall elements. The anchor hook can thus be inserted into a narrow parting line, wherein the anchor hook extends substantially parallel to the parting wall delimiting wall surfaces, and can then be rotated or pivoted into a locking position and in particular in a transverse position, which allows a holding or locking engagement on one or both of the parting line delimiting components or concrete wall elements.

The joint anchor can be fastened or latched directly or indirectly to the sealing strip by means of a holding device, so that the sealing strip is sealingly attached to the concrete wall elements under pretensioning of the parting line. An indirect attachment is z. B. via an additional component which is arranged between the joint anchor and the sealing strip and which transmits the biasing force.

Conveniently, after curing of the joint filling material, the base section of the joint anchor is separated in particular by tensile or bending stress in a region between the holding device or latching device and the anchor head. The separation takes place in particular at such a location, which is substantially flush with the surface of the cured Fugenfüllmaterials.

A device for sealing a parting line to be filled between two concrete wall elements or a concrete wall element and another component thus contains at least one sealing strip which has an abutment means for the parting line covering the application of the sealing strip on the two dividing line delimiting components or concrete wall elements. Such a contact device may be a respective flat surface of the sealing strip or a surface of the sealing strip adapted to the concrete wall element in its shape. The joint anchor includes a base portion with an anchor shaft and a head portion with an anchor head for gripping or engaging behind a portion of at least one of the two concrete wall elements. The armature shaft is an arbitrarily shaped portion, in particular rod-shaped with z. B. round or rectangular cross section is formed. A holding or force transmission device spaced from the anchor head on the armature shaft serves for the direct or indirect support of the joint anchor on the sealing strip and can be embodied in a variety of configurations. A handling device of the joint anchor allows the positioning of the joint anchor as well as the application of force to the joint anchor for prestressed fixing of the sealing strip and in particular the application of force for separating the base part of the joint anchor when removing the sealing strip. The sealing strip further includes at least one recess for passing or passing through the joint anchor, in particular with its handling device and a support device for supporting the joint anchor on the holding device against movement in the direction of the anchor head.

If a predetermined breaking point is formed on the armature shaft between the anchor head and the holding device, a preferred breaking or cutting point is defined defined.

The holding or power transmission device may comprise a locking device in a simple design or be formed as a latching device, but other designs with screw threads with longitudinally adjustable nuts or with a number on the armature shaft lying behind each other formed openings for each engagement of a wedge or the like are possible.

The sealing strip can be a cross-sectional, angular, curved or tubular profile or have such profile sections. In particular, a section engaging in the parting line may have a configuration adapted to the cross section of the parting line.

In particular, the support means may comprise an engagement part which is releasably attachable to the sealing strip. The engagement member may be adapted in different embodiments to differently shaped joint anchors, so that for different joint anchors not the entire sealing strip, but only the engagement parts must be adjusted.

An inventive joint anchor in particular an above-mentioned device for sealing a parting line to be filled between two concrete wall elements or the like by means of a sealing strip basically contains a Base portion with an anchor shaft and a head portion with an anchor head for gripping or engaging behind a portion of at least one of the two concrete wall elements. The anchor head has at least one projection or anchor hook. A holding device, in particular latching device, for axially locking the joint anchor against a particular axial movement in the direction of the anchor head is provided on the base portion. Furthermore, a handling device for the joint anchor, in particular for applying an axial tensile force on the joint anchor provided. As a projection or anchor hook is every element into consideration, which allows a determination of the anchor head and the joint anchor against axial displacement, such. B. a one-sided or easier as well as a two-sided or double projection or hook. Such a projection or hook may be fixed or foldable or pivotable, so that it swiveled through a narrow parting line fits and then can be swung out to allow engagement behind on the parting line delimiting components.

The anchor shank preferably has a predetermined breaking or predetermined separation point, in particular between the holding device or latching device and the anchor head, so that the base section can be separated from the head section when the joint anchor is fixed in or at the parting line by a joint filling material.

Appropriately, the anchor head of the joint anchor and / or the armature shaft is elastically deformable such that it provides a biasing force on the armature shaft axially acting restoring force. The elastic deformability can be achieved by the material itself and / or by an appropriate design.

In a preferred embodiment, the holding or power transmission device is formed or attached to the joint anchor such that it is essentially effective only in one plane, which is spanned by the anchor shaft and the at least one projection or anchor hook on the anchor head. While the joint anchor is inserted in its mounting position through the joint, the holding or power transmission device is therefore ineffective. If the joint anchor then is brought into its clamping or fastening position, the holding or power transmission device can tension the sealing strip in its sealing position on the joint.

In principle, the joint anchor described is intended and suitable for a device according to the invention as well as for a method according to the invention.

In a parting line according to the invention, such a joint anchor extends in the parting line through the Fugenfüllmaterial and is held by this fugenvorderseitig an anchor shaft of the joint anchor at a separation point, in particular breaking point ends, and the back of an anchor head of the joint anchor is held by Fugenfüllmaterial. Through this lost joint anchor, the parting line can be made easily and inexpensively, in particular by the use of a Betonausgießmaterials as Fugenfüllmaterial.

The parting line is expediently produced by the described method and / or using a described device and / or a described joint anchor.

The invention therefore makes it possible to fill a parting line in a simple manner with a joint filling material which is simultaneously the pouring material or the concrete stiffener, so that the parting line according to the invention as well as the method is produced without its own separate joint filling or a separate joint filler. This also time for a prior curing of a special Fugenfüllmittels according to the prior art is not required. The strength of a parting line filled in accordance with the invention can be determined statically, since there is a uniform material structure in the parting line and the adjacent areas.

Fig. 1

in einer Querschnittansicht eine Trennfuge zwischen zwei Betonwandelementen vor dem Einsatz einer erfindungsgemäßen Vorrichtung;

Fig. 2

in einer Querschnittansicht die Trennfuge mit der daran angebrachten erfindungsgemäßen Vorrichtung;

Fig. 3

in einer perspektivischen Ansicht einen erfindungsgemäßen Fugenanker;

Fig. 4

in einer perspektivischen Ansicht eine erfindungsgemäße Dichtleiste mit einem in drei Positionen dargestellten Fugenanker;

Fig. 5

in einer perspektivischen Ansicht die Fugenseite der Dichtleiste;

Fig. 6

in einer Querschnittansicht gemäß Fig. 2 in vergrößerter Darstellung eine Trennfuge zwischen zwei Betonwandelementen mit einer daran angeordneten erfindungsgemäßen Vorrichtung gemäß einem weiteren Ausführungsbeispiel bei der Montage;

Fig. 7

in einer Querschnittansicht gemäß Fig. 6 die in der Trennfuge angeordnete Vorrichtung in einer weiteren Montagestellung;

Fig. 8

in einer Querschnittansicht gemäß Fig. 7 die in der Trennfuge angeordnete Vorrichtung mit verriegeltem Fugenanker und ausgefüllter Fuge;

Fig. 9

in einer Querschnittansicht gemäß Fig. 8 die ausgefüllte Trennfuge nach dem Entfernen der Dichtleiste;

Fig. 10

in einer Draufsicht in vergrößerter Darstellung einen Ausschnitt einer Verzahnung an einer Rasteinrichtung des Fugenankers;

Fig. 11

in Querschnittsansicht mehrere grundsätzliche Formen von Dichtleisten;

Fig. 12

in Seitenansicht jeweils eine Ausführungsform eines Ankerhakens;

Fig. 13

in Seitenansicht (bzw. zusätzlich in Draufsicht bei a. und c.) jeweils ein Ausführungsbeispiel eines Ankerschaftes;

Fig. 14

in perspektivischer Draufsicht in geschnittener Halbdarstellung ein Ausführungsbeispiel eines an der Dichtleiste anbringbaren Eingriffsteils für den Fugenanker;

Fig. 15

in einer Längsschnittansicht ein Abschnitt des Eingriffsteils an einer Dichtleiste;

Fig. 16

in einer Längsdraufsicht das Eingriffsteil an einer Dichtleiste; und

Fig. 17

in einer Querschnittansicht das Eingriffsteil an einer Dichtleiste.

Embodiments of the method according to the invention, the device, the joint anchor and the parting line will be explained in more detail with reference to the drawing. It shows:

Fig. 1

in a cross-sectional view of a parting line between two concrete wall elements before the use of a device according to the invention;

Fig. 2

in a cross-sectional view of the parting line with the device according to the invention mounted thereon;

Fig. 3

in a perspective view of a joint anchor according to the invention;

Fig. 4

in a perspective view of a sealing strip according to the invention with a joint anchor shown in three positions;

Fig. 5

in a perspective view of the joint side of the sealing strip;

Fig. 6

in a cross-sectional view according to Fig. 2 in an enlarged view, a parting line between two concrete wall elements with a device according to the invention arranged thereon according to a further embodiment during assembly;

Fig. 7

in a cross-sectional view according to Fig. 6 the arranged in the parting line device in a further mounting position;

Fig. 8

in a cross-sectional view according to Fig. 7 the arranged in the parting line device with locked joint anchor and filled gap;

Fig. 9

in a cross-sectional view according to Fig. 8 the filled parting line after removing the sealing strip;

Fig. 10

in a plan view in an enlarged view a section of a toothing on a locking device of the joint anchor;

Fig. 11

in cross-sectional view, several basic forms of sealing strips;

Fig. 12

in side view in each case an embodiment of an anchor hook;

Fig. 13

in side view (or additionally in plan view at a and c.) In each case an embodiment of an armature shaft;

Fig. 14

in a perspective plan view in a sectioned half-view of an embodiment of an attachable to the sealing strip engagement part for the joint anchor;

Fig. 15

in a longitudinal sectional view, a portion of the engaging part on a sealing strip;

Fig. 16

in a longitudinal plan view of the engagement member on a sealing strip; and

Fig. 17

in a cross-sectional view of the engagement part on a sealing strip.

Two hollow or double wall elements 1 and 2 (see Fig. 1 and 2 ) are prepared in a known manner as precast concrete elements in a concrete plant and placed next to each other at their site for erecting a wall or wall. Each double wall element 1, 2 has two spaced-apart flat concrete wall elements 3 and 4, which are held by means of a reinforcement 5 in their mutual distance with an intermediate cavity 6. The two double-wall elements 1 and 2 are positioned at a distance from one another such that a parting line 7 is formed between the two aligned concrete wall elements 3 and 3 or 4 and 4. Each concrete wall element 3, 4 contains, for example, a joint end face 8 and an outer bevel 9, so that the parting line 7 has in cross-section an inner channel section 10 with parallel boundaries formed by the joint end faces 8 and a V-shaped channel opening 11 on the outer side.

Before the concreting out of the cavities 6 of the wall formed from the double wall elements 1 and 2, the joints are closed on the outside to prevent leakage of a concrete slurry to be filled. An inventive device for sealing or closing the parting line 7 includes a sealing strip 12 which is applied to the two the parting line 7 bounding concrete wall elements 3, 4 so that it covers the parting line 7 and against leakage of concrete sludge, which also forms a Fugenfüllmaterial 13 ( please refer Fig. 8 in which the concrete slug is shown in the cavity 6 in sections), substantially seals, and a joint anchor 14, with which the sealing strip 12 on the two concrete wall elements 3 (or 4) in the region of the parting line 7 is releasably fixed.

In the in the Fig. 2 illustrated embodiment, the sealing strip 12 is formed in cross-section such that it adapts to the contour of the V-shaped channel opening 11. For this purpose, the sealing strip 12 includes a V-shaped central portion 15 for application to the two bevels 9 and two lateral abutment legs 16 for application to the outer surfaces of the two concrete wall elements 3 and 4, in particular, form a contact device of the sealing strip 12.

The explanation of the device according to the invention will be given in the following, first with reference to an embodiment of the sealing strip 12 according to the Fig. 4 to 8 , This sealing strip 12 also includes a V-shaped central portion 15, to which, however, adjoin each other at an angle to each other directed legs 17 whose end edges 18 define a narrow longitudinal slot 19. The sealing strip 12 thus forms a stable largely closed tubular profile with the narrow longitudinal slot 19, which extends opposite to a channel-like front edge 20 on the V-shaped central portion 15 of the sealing strip 12. In the front edge 20 a plurality of slot-like recesses 21 or slots are formed, which are arranged spaced apart in the longitudinal direction of the sealing strip 12.

The joint anchor 14 (see Fig. 3 ) includes a base portion with an elongate rod-shaped armature shaft 22 having, for example, a round or rectangular shape Cross-section and a head portion with an anchor head 23 with two opposing anchor hooks 24 for engaging behind the two concrete wall elements 3 and 4. Spaced from the anchor head 23, the armature shaft 22 includes a holding or power transmission device z. B. in the form of a latching device 25 which is formed as a double-sided locking teeth with a plurality of teeth 26 which are arranged along the armature shaft 22 one behind the other and have latching surfaces 27 which hold an engaging member 28 relative to a handle 29 which holds the Anchor head 23 opposite end of the joint anchor 14 forms. The engagement member 28 is formed for example by the two end edges 18 of the legs 17 or it is an independent component, as in Fig. 2 or in the FIGS. 14 to 17 is shown. The handle 29 has, for example, the shape of a ring and is arranged in the plane of the anchor hooks 24.

The slot-like recesses 21 are z with their length and width. B. adapted to the handle 29, so that the joint anchor 14 can be inserted in a simple assembly process with the handle 29 ahead through the respective recess 21 from the side of the front edge 20 ago.

When mounting the device, a joint anchor 14 with parallel to the recess 21 aligned handle 29 is first inserted through each recess 21 through this recess 21 and further through the opposite longitudinal slot 19 therethrough (in Fig. 4 the right joint anchor 14 is shown in this position).

Subsequently, the sealing strip 12 is arranged with the example, three joint anchors 14 with its central portion 15 at the parting line 7, wherein the central portion 15 is applied to the chamfers 9 and thus the parting line 7 is substantially sealed. Each joint anchor 14 is inserted through the parting line 7 and positioned so that its armature shaft 22 extends beyond the parting line 7 and therefore the anchor head 23 is disposed inside the cavity 6 behind the parting line 7 (see Fig. 6 ).

Thereupon, each joint anchor 14 is rotated by about 90 ° about its armature shaft 22 by means of its handle 29 (see Fig. 4 , Representation of the middle joint anchor 14, as well as Fig. 7 ). The latching device 25 or the toothing on the armature shaft 22 is located within the profile of the sealing rail 12 and the teeth 26 are thereby brought transversely to the longitudinal slot 19 in a position in which they can be locked or locked in the next assembly step. At the same time the anchor head 23 pivots by 90 °, so that the two anchor hooks 24 are aligned transversely to the parting line 7 and each engage over an anchoring edge 30 of the concrete wall element 3, 4, which limits the parting line 7 on the rear or inside of the concrete wall element 3, 4 ,

Now, each joint anchor 14 is pulled by its handle 29 of the concrete wall element 3, 4 or the sealing rail 12 away until the two anchor hooks 24 with their tips on the anchoring edges 30 of the two concrete wall elements 3, 4 firmly abut (see Fig. 8 and Fig. 4 , Illustration of the left joint anchor 14). When tightening the joint anchor 14, the portion of the armature shaft 22 moves with the latching device 25 and with the teeth 26 through the longitudinal slot 19. The width of the armature shaft 22 on the latching device 25 in the direction of the protruding teeth 26 and the width of the longitudinal slot 19 are such matched to one another, that the two legs 17 can slide over the tips of the teeth 26, due to the spring elasticity of the z. However, the end edges 18 can engage in the recesses 30 between two teeth 26 and can rest on the associated locking surfaces 27 of the teeth 26 in latching or locking engagement when the joint anchor 14 its retaining , Clamping or locking position has taken.

The anchor head 23 and the two anchor hooks 24 have due to the material properties and / or design a certain elasticity, so that the joint anchor 14 is brought at high tensile force and elastic yield of the anchor hooks 24 in a locking position in which the end edges 18 of the legs 17th a rest position on the teeth 26 safely occupy. When the pulling force is finished and the handle 29 is released, the elastically biased ones generate Anchor hook 24 a clamping and holding force of the joint anchor 14 in the direction of the armature shaft 22 and the latching device 25 on the legs 17 of the sealing strip 12, which is thus pressed with this clamping force in the parting line 7 and this seals. The latching device 25 as an example of a power transmission device thus brings the clamping force from the joint anchor 14 on the sealing strip 12th

After mounting the sealing strip 12, the cavity 6 is filled with Betonschlemme, which flows into the parting line 7 and the sealing strip 12. After curing of the concrete slug, the armature shaft 22 can be separated at a predetermined breaking point 31 by pulling on the handle 29, the tensile force exceeding the force applied for locking. The predetermined breaking point 31 is expediently located between the anchor head 23 and the latching section 25 and in particular at the point which in the position according to FIG Fig. 8 is arranged on the recess 21 (the predetermined breaking point 31 is in Fig. 3 only shown schematically). The front or head portion of the joint anchor 14 thus remains with the anchor head 23 in the hardened Betonschlemme or Fugenfüllmaterial 13. The sealing strip 12 is therefore after the separation of the joint anchor 14 of the parting line 7 solvable and optionally after cleaning residues of Betonschlemme again usable.

The filled parting line 7 receives an outer V-shaped configuration with the two bevels 9 and the intermediate V-shaped groove 32, which has a comparatively smooth surface.

The reusable sealing strip 12 is prepared for example in lengths of 1, 1.5 or 2 m and consists z. Example of a steel sheet or a light metal with a certain number of recesses 21, where the attachment by means of the joint anchor 14 takes place. For longer joints 7 at least two sealing strips 12 are arranged and mounted consecutively in the longitudinal direction.

The parting lines 7 can be designed differently or have differently shaped cross-sections. Accordingly, the sealing strips 12 may have different and adapted to the joints 7 cross-sections. In Fig. 11 For example, some sealing strips 12 are shown with different cross sections.

The sealing strip 12 according to Fig. 11 b. is in Fig. 2 shown in their installation position. In this sealing strip 12, a separate engagement member 28 is provided, which has the recess for the interaction with the latching device 25 of the joint anchor 14 and which is supported in the clamping position on the sealing strip 12 and this presses against the parting line 14. The engaging member 28 is for example a flat strip strip, plate or the like.

A flat strip-shaped sealing strip 12 according to Fig. 11 a. is suitable for covering and sealing joints with different cross-sections 7, since it covers the parting line 7 at its outwardly directed end regardless of the inner cross section. The joint filling material 13 then completely fills the parting line 7 with a planar upper side.

A V-shaped sealing strip 12 according to Fig. 11 c. is clamped by means of an engaging part 28 on the parting line 7. The engaging member 28 may be loosely applied to the sealing strip 12, be releasably latched thereto or it is firmly connected with her, z. B. glued. The sealing strip 12 is suitable for cross-section correspondingly shaped and at least in the outer or front portion V-shaped joints 7, in which they are partially or wholly applicable. On the other hand, this seal 12 can also be used in the opening of a parting line 7 with parallel boundary walls and be supported at its two V-shaped legs linearly at the corner edges of the two concrete wall elements.

The embodiment of the sealing strip 12 of Fig. 11 d. is the one who Fig. 11 c. similar, however, the sealing strip 12 has a closed triangular profile.

The profile of in Fig. 11 e. illustrated sealing strip 12 corresponds approximately to that of the in the Fig. 6 to 8 illustrated sealing strip 12th

The groove-shaped profile of the sealing strip 12 with the cross section of a circular arc portion of Fig. 11 f. is suitable for correspondingly shaped bearing surfaces or bevels 9 on the concrete wall elements 3, 4th

Finally shows Fig. 11 G. a sealing strip 12 with a tubular profile.

At all in Fig. 11 shown sealing strips 12 are recesses 21 for receiving the joint anchor 14 is not shown. Of course, they are provided in the required shape and arrangement.

Fig. 12 contains representations of different embodiments of anchor heads of the joint anchor 14. So shows Fig. 12 a. a right-angled plate or bar forming two oppositely projecting hooks, Fig. 12 b. a unilateral curved hook, Fig. 12 c. a curved rod with two-sided hook and Fig. 12 d. two pivoting or hinged hooks, the z. B. are issued by a resilient force, when plugged into the parting line 7 against the anchor shaft are hinged and can swing out again behind the parting line.

Fig. 13 contains representations of different designs of holding or power transmission devices which are formed on the armature shaft 22 and on which the sealing strip 12 is supported directly or indirectly. Fig. 13 a. shows as a holding or power transmission device a plurality of longitudinally spaced openings on the armature shaft 22, in which a wedge for supporting the sealing strip 12 can be inserted. According to Fig. 13 b. For example, the armature shaft may have a section with a thread on which the sealing strip 12 is supported via an axially adjustable nut. Fig. 13 c. shows the armature shaft with a latching device 25 with a toothing.

The joint anchor 14 (see eg Fig. 3 ) is for example an injection molded part made of a plastic such as polyamide, polystyrene or polypropylene.

The sealing strip 12 may have an assembly aid for faster finding the correct positioning of the joint anchor 14 for insertion through the recesses 21. For example, at least one bore 33 (see Fig. 4 ) is formed in the sealing strip 12 on the leg 17 approximately opposite to the recess 21, which indicates the correct position.

The FIGS. 14 to 17 show an embodiment of an engaging part 28, which is comparable to Fig. 11 c. attached to a V-shaped or rectangular sealing strip 12. The engagement part 28, z. As a plastic injection molded part, has two abutment legs 34 which are adapted to the shape of the sealing strip 12 and allow a stable surface contact of the engaging member 28 on the inside of the sealing strip 12. Centrally at the apex of the engaging part 28, an elongated opening 35 is formed, whose cross section allows the passage of the joint anchor 14, in particular with its handle 29, wherein the engaging member 28 is arranged on the sealing strip 12, that the elongated opening 35 congruent to one of the recesses 21st the sealing strip 12 is arranged. The elongate opening 35 is bounded by two opposing locking tabs 36 which are slightly inclined to each other, so that their edges 37 can come into locking engagement with the teeth 26 of the latching device 25 of the joint anchor 14.

The positionally accurate attachment of the engagement member 28 on the sealing strip 12 is facilitated and improved by two positioning teeth 38 which protrude at the apex of the engaging member 28 on either side of the opening 35 upwards or outwards and arranged in a matched to the length of the recess 21 of the sealing strip 12 mutual distance are. Each positioning tooth 38 has a hook-shaped tooth head 39, which elastically springs back when pushed through the recess 21 and after passing through the sealing strip 12 adjacent to the recess 21, whereby the engaging member 28 is releasably secured to the sealing strip 12.

When mounting the sealing strip 12, an engaging member 28 is attached to one of the recesses 21 of the sealing strip 12, which is used again after filling the parting line 14 or replaced if it is no longer functional The engaging member 28 allows a simpler design of the sealing strip 12th , because at this even the locking does not have to be done directly and therefore no corresponding device must be formed.

The individual features of the invention disclosed in the description and on the basis of the exemplary embodiment and in the figure can be combined with the subject matter of the invention in its general form in any technically expedient arrangements and configurations.

LIST OF REFERENCE NUMBERS

1

Double wall element

2

Double wall element

3

Concrete wall element

4

Concrete wall element

5

reinforcement

6

cavity

7

parting line

8th

Joint front side

9

bevel

10

inner canal section

11

channel opening

12

sealing strip

13

joint filler

14

joint anchor

15

midsection

16

contact leg

17

leg

18

end edge

19

longitudinal slot

20

front edge

21

recess

22

anchor shank

23

anchor head

24

anchor hook

25

locking device

26

tooth

27

Rest area

28

engaging part

29

handle

30

recess

31

Breaking point

32

V-groove

33

drilling

34

contact leg

35

opening

36

bar tab

37

edge

38

positioning tooth

39

addendum

Claims (9)

1. Device for sealing a separation joint (7) to be filled between two concrete wall elements (3, 4),
   characterized by
   at least one sealing strip (12), which has a placement device for placing the sealing strip (12) covering the separation joint (7) on the two concrete wall elements (3, 4) bounding the separation joint (7), and
   at least one jointing anchor (14), which has
   a base section having an anchor shaft (22) and a head section having an anchor head (23) for gripping or engaging behind a section of at least one of the two concrete wall elements (3, 4),
   a holding device (25), spaced apart from the anchor head (23) on the anchor shaft (22), to be supported directly or indirectly on the sealing strip (12), and
   a handling device (29),
   the sealing strip (12) having at least one cut-out for the jointing anchor (14) to be stuck through, in particular by using its handling device (29), and a supporting device (18, 28) being provided for supporting the jointing anchor (14) on the holding device (25) counter to a movement in the direction of the anchor head (23)
2. Device according to Claim 1,
   characterized in that an intended fracture point (31) is formed on the anchor shaft (22), between the anchor head (23) and the holding device (25).
3. Device according to Claim 1 or 2,
   characterized in that the holding device (25) has a latching device.
4. Device according to one of claims 1 to 3,
   characterized in that the sealing strip (12) has a profile which is flat, angular, curved or tubular in cross section or has such profiled sections.
5. Device according to one of Claims 1 to 4,
   characterized in that the supporting device has an engagement part (28) which can be fitted detachably to the sealing strip (12).
6. Method for sealing a separation joint (7) to be filled between concrete wall elements (3, 4) with a device according to one of Claims 1 to 5,
   characterized by the steps:

   - the sealing strip (12) with at least one associated jointing anchor (14) is brought into a position sealing off the separation joint (7) on the concrete wall elements (3, 4) bounding the separation joint (7), the jointing anchor (14) being brought into a mounting position reaching through the separation joint (7),

   - the sealing strip (12) is preloaded against the concrete wall elements (3, 4) by means of the jointing anchor (14), which is brought with a head section into a fixing position gripping or engaging behind at least one of the concrete wall elements (3, 4),

   - the separation joint (7) is filled with joint-filling material (13),

   - following the curing of the joint-filling material (13), a base section of the jointing anchor (14) that is associated with the sealing strip (12) is severed from the head section held by the joint-filling material (13), and

   - the sealing strip (12) and the severed base section are removed from the separation joint (7), the head section held by the joint-filling material (13) remaining in the joint-filling material (13).
7. Method according to Claim 6,
   characterized in that the jointing anchor (14) is displaced about its longitudinal axis in such a way that at least one projection or anchor hook (24) of an anchor head (23) grips or engages behind one of the concrete wall elements (3, 4).
8. Method according to Claim 6 or 7,
   characterized in that the jointing anchor (14) is latched directly or indirectly on the sealing strip (12) by means of a holding device (25), so that the sealing strip (12) is fitted to the concrete wall elements (3, 4) under preload, sealing the separation separation joint (7).
9. Method according to one of Claims 6 to 8,
   characterized in that, following the curing of the joint-filling material (13), the base section of the jointing anchor (14) is severed, in particular by means of a tensile or flexural loading, in a region between the holding device (25) or latching device and the anchor head (23).

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