EP2093339B1 - Device for attaching a seal to a formwork board - Google Patents

Description

TECHNICAL AREA

The present invention relates to a device for holding a seal on a Abschalungsplatte for use as a permanent formwork in a working and / or expansion joint between two concrete components, wherein the seal serves to seal the joint against water.

STATE OF THE ART

Such a device is out EP 1 422 355 A1 known in the form of a perforated plate, which is embedded in sheet form in the Abschalungsplatte and fixedly connected to a trained as a sealing plate and arranged transversely to her and laterally in each case on the Abschalungsplatte protruding seal.

The sealing plate is used in the EP 1 422 355 A1 firmly anchored together with its holding device in the shuttering plate by pouring. Such formwork panels are more expensive to manufacture than simple formwork panels without integrated sealing panels, because elements for filling the voids necessarily resulting in the mold through the sealing panels must be used and thereby only a relatively small number of formwork panels can be cast simultaneously in a mold. The shuttering plates with the integrated sealing plates are also bulky during transport.

Another device for holding a seal is known from Die19905691. PRESENTATION OF THE INVENTION

The object of the invention is to provide a device of the type mentioned, which is more flexible and modular.

According to the invention, this is achieved by a device according to claim 1.

Accordingly, two shuttering plates are used together with the device according to the invention, the sealing of the gap in the area between the two shuttering plates being effected over the entire width of the joint against both adjoining concrete components. This is sealing technology much safer than to provide two seals on both sides only one shuttering plate.

Various sealing systems, such as sealing plates or injection hoses can be used together with the device according to the invention. The production of bulky Abschalungsplatten with firmly cast in sealing plates falls away by the device according to the invention, since the seal can be easily attached to the inventive device and connected to conventional shuttering plates. Depending on the thickness of the concrete components to be created in the connection region, conventional shuttering plates with different heights can be combined with one another and with the device according to the invention. This also reduces the variety of parts required for different thicknesses. Fewer different formwork panels need to be made and stocked. Thus, the production costs are reduced and the parts are also easier to pack and / or transport. According to the invention, the device has two U-profiles arranged in opposite directions to each other for receiving and holding a respective shuttering plate, which are connected to one another by at least one stirrup. The or preferably several brackets hold the two U-profiles and thus the Abschalungsplatten in a fixed distance. In the area of this distance, then, if necessary, retrofitted, the seal is mounted. As a seal, in particular, a sealing plate between the u-profiles by Inserted from one side, protruding on both sides over the U-profiles. On one side, it then engages in the at least one first bracket and is held by this against twisting, slipping or bending. In addition, at least one further bracket or a functionally corresponding retaining element may be attached to one of the U-profiles on the side opposite the at least one first bracket.

According to a second embodiment not according to the invention, two u-profiles arranged in opposite directions to one another are provided, between which a sealing plate projecting on both sides is firmly attached. This embodiment has the advantage that it consists of one piece and can be mounted quickly. In addition, the seal can not move.

According to a third embodiment not according to the invention, the device may comprise a clamp which has a narrow U-profile for receiving and holding a shuttering plate and an oppositely oriented wider U-profile for receiving and holding a sealing plate. The clip can be only a few centimeters long. Several such brackets may be mounted at appropriate intervals so as to hold a respective sealing plate and alternately one of the two shuttering plates. The advantages of this embodiment can be seen in the fact that it consists of relatively small parts that can be produced inexpensively by extrusion or injection molding and easy to transport.

As a seal, together with the devices of the above-described embodiments, a sealing plate made of a metal sheet or a ribbed plastic profile can be used. The sealing plate may be provided with a coating which combines watertight with fresh concrete. In a fourth embodiment not according to the invention, the device may have two mutually opposite u-profiles for receiving and holding each one Abschalungsplatte, which are interconnected by at least one perforated plate and between which the seal is mounted.

A device not according to the invention could also comprise a perforated plate, which is provided with at least one adhesive layer for bonding to the shuttering plates, for holding two shuttering plates at a mutual distance. In this case, a plurality of fastening clips connected or connectable to the perforated plate are preferably additionally provided for holding an injection hose in the distance region between the shuttering plates.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1

eine erste Ausführungsform einer erfindungsgemässen Vorrichtung in perspektivischer Darstellung mit zwei u-Profilen und mit mehreren, diese miteinander verbindenden Bügeln;

Fig. 2

in einer Schnittdarstellung die Vorrichtung von Fig. 1 im Einbauzustand mit zwei Abschalungsplatten und einer Dichtungsplatte;

Fig. 3

eine zweite Ausführungsform einer nicht erfindungsgemässen Vorrichtung im Schnitt mit integrierter Dichtungsplatte;

Fig. 4

in gleicher Darstellung eine Modifikation der zweiten Ausführungsform;

Fig. 5

eine dritte Ausführungsform einer nicht erfindungsgemässen Vorrichtung in perspektivischer Darstellung in Form einer Klammer;

Fig. 6

mehrere Vorrichtungen gemäss Fig. 5 im Verbindung mit zwei Abschalungsplatten und einer Dichtungsplatte in perspektivischer Darstellung:

Fig. 7

eine für einen Injektionsschlauch als Dichtung geeignete Ausführungsform einer erfindungsgemässen Vorrichtung mit zwei u-Profilen im Schnitt;

Fig. 8

die Vorrichtung von Fig. 7 dargestellt mit einem Quellband als Dichtung;

Fig. 9

eine weitere für einen Injektionsschlauch als Dichtung geeignete Ausführungsform einer nicht erfindungsgemässen Vorrichtung mit zwei Lochplatten im Schnitt; und

Fig. 10

noch eine weitere für einen Injektionsschlauch als Dichtung geeignete Ausführungsform einer nicht efindungsgemässen Vorrichtung mit nur einer Lochplatte im Schnitt;

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it:

Fig. 1

a first embodiment of a device according to the invention in a perspective view with two U-profiles and with several, these interconnecting arms;

Fig. 2

in a sectional view of the device of Fig. 1 in the installed state with two shuttering plates and a sealing plate;

Fig. 3

a second embodiment of a device not according to the invention in section with integrated sealing plate;

Fig. 4

in the same representation, a modification of the second embodiment;

Fig. 5

a third embodiment of a device not according to the invention in a perspective view in the form of a clip;

Fig. 6

several devices according to Fig. 5 in connection with two shuttering plates and a sealing plate in perspective:

Fig. 7

an embodiment suitable for an injection hose as a seal of an inventive device with two U-profiles in section;

Fig. 8

the device of Fig. 7 represented with a swelling tape as a seal;

Fig. 9

a further suitable for an injection hose as a seal embodiment of a device not according to the invention with two perforated plates in section; and

Fig. 10

Yet another for a injection hose as a seal suitable embodiment of a non-inventive device with only one perforated plate in section;

WAYS FOR CARRYING OUT THE INVENTION

The device of Fig. 1 corresponds to a first embodiment of the invention and comprises two oppositely arranged mutually U-profiles 1,2, which are connected to each other stably by means of first bracket 3 with mutual distance. The two U profiles 1, 2 are used to hold and hold shuttering panels that are simply inserted into them. Between the two u-profiles 1, 2, a sealing plate can be inserted from the side, the width of which is dimensioned so that it protrudes on both sides over the two u-profiles. In the inserted state, such a sealing plate engages in the first bracket and is secured by it against rotation relative to the insertion direction. For additional determination of the sealing plate in this orientation, second bracket 4 are attached to one of the U-profiles 2 parallel to this on the first bracket 3 opposite side.

Fig. 2 shows the device of Fig. 1 with two shuttering plates 5, 6 and a sealing plate 7 in a typical installation situation between two sections A and B of a horizontal concrete slab. The shuttering plates 5, 6 are preferably those according to the cited above EP 1 422 355 A1 made of a special concrete, with net-shaped reinforcing insert and window-like recesses with only a small wall thickness for the passage of reinforcing iron for connecting the two concrete slab sections A and B, which are concreted successively, for example. The two U-profiles 1, 2 are adapted to this type of shuttering plates 5, 6 and accordingly have a length between 100 - 300 cm and a clear width between 10 and 30 mm, preferably 20 mm.

The sealing plate 7 serves to seal the joint between the two concrete slab sections A, B against water. Even though Fig. 2 the two shuttering plates 5, 6 tightly embedded in the concrete adjacent on both sides are in practice between the shuttering plate and the adjacent concrete out there always column through which water can pass and which arise, inter alia, due to the shrinkage process, the concrete is subject to setting , By aligning the seal plate 7 transversely to the shuttering plates 5, 6 and their engagement in both concrete slab sections 8, 9, water must pass the path around the seal plate 7 to pass the gap. With sufficient width of the seal plate 7, this circulation path is long enough that tightness can be assumed. When using a simple metal sheet as a sealing plate 7, the two-sided projection should be at least 10 cm. In the example of Fig. 2 the sealing plate 7 is additionally provided with a self-adhesive coating 8, which connects to fresh concrete water-impermeable. Such a coating is made, for example EP 0 796 951 A1 known as a mixture of soft bitumen, styrene-butadiene-styrene (SBS) and synthetic resins. In this case, the two-sided projection of the sealing plate can also be chosen smaller than 10 cm, whereby the bracket 3 and 4 can be dimensioned correspondingly shorter.

The U-profiles 1, 2, as the bracket 3, 4 made of steel and be connected by welding together. Their mutual distance should be between 2 and 10 mm, preferably 5 mm, so that on the one hand a sealing plate like the plate 7 of e.g. 1 to 3 mm thickness can be easily inserted between them, the remaining column on the other hand but no concrete, but at best pass some concrete slurry when concreting the first of the two concrete slab sections A and B respectively.

Fig. 3 shows a device according to a second embodiment, together with two Abschalungsplatten 5, 6, in which again two oppositely arranged to each other u-profiles 11, 12 are provided, between which a sideally projecting above them seal plate 13 is already firmly attached. Preferably, the sealing plate 13 is a metal sheet, which can be welded to the two U-profiles 11, 12, if they are also made of metal. The sealing plate 13 is preferably also again with a coating 14 of provided above type, which connects waterproof with fresh concrete.

Fig. 4 shows a variant of the embodiment of Fig. 3 , here as a sealing plate 15, a plastic profile is provided with a plurality of longitudinal ribs 16, which cause an extension of the circulation path for water. The plastic profile 15 may be glued between the two U-profiles 11, 12 by means of an adhesive 17.

Fig. 5 shows a third embodiment of a device in the form of a clamp 21, which has a narrow U-profile 21 for receiving and holding a Abschalungsplatte and an oppositely oriented wider U-profile 22 for receiving and holding a sealing plate. The bracket 21 may have a length between 10 and 20 cm. It preferably consists of a plastic material such as polyethylene, polypropylene, polyvinyl chloride or polystyrene and is more preferably an extrusion or injection molded part. Several such brackets 21 may, as well Fig. 6 20-50 cm are mounted so as to each hold a sealing plate 24 and alternately one of two shuttering plates 25, 26. The sealing plate 24 and the shuttering plates 25, 26 are in Fig. 6 merely shown schematically, but can be used for them the same as the above-described parts 5, 6 and / or 7.

Other embodiments show the FIGS. 7-10 each in section and together with two shuttering plates 5, 6. In the FIGS. 7 and 8 are two U-profiles 31, 32 connected to each other via bracket 33, said bracket 33, however, are much shorter and less bulky than the first bracket 3 of Fig. 1 , Conversely, the distance between the two u-profiles 31, 33 is slightly larger than in the embodiment of Fig. 1 chosen and amounts to between 10 - 20 mm. This embodiment is suitable for inserting a seal whose effect is not based on the circulation principle, such as an injection hose 34, Fig. 7 , or a swelling tape 35, Fig. 8 , About the injection hose 34 of Fig. 7 can be pressed into the joint after concreting both concrete slab sections a sealant, for example in the form of a synthetic resin composition, wherein the injection hose 34 is provided with suitable openings to the outlet of the sealant to enable. In contrast, the swelling tape 35 automatically swells on contact with water, thereby sealing off the joint.

In Fig. 9 the device is formed by two perforated plates 41, 42 which are interconnected via two transverse plates 43, 44, so that the overall result is an H-shaped cross-sectional shape with an upwardly and downwardly open U-profile for receiving and holding the shuttering plates 5, 6 and with a central channel 45, in which an injection tube 46 can be retracted. Through the holes in the perforated plates 41, 42, the injected via the injection hose 46 sealing compound from the central channel 45 exit and fill the joint.

In a variant of the embodiment of FIG Fig. 9 could two oppositely oriented U-profiles are connected by a single-sided arranged perforated plate together, in which case the perforated plate, the function of the bracket 35 of Fig. 7 takes over.

In Fig. 10 is a device as a perforated plate 51 is present, which is adhesively bonded by means of an adhesive 52 laterally to the two shuttering plates 5, 6 shown. Again, an injection tube 53 is again used, which can be easily inserted from the side between the two shuttering plates 5, 6. For fixing the injection tube 53 clips 54 are provided which are fixed at suitable intervals on the perforated plate 51.

NAME LIST

1

u-profile

2

u-profile

3

first temple

4

second bracket

5

Abschalungsplatte

6

Abschalungsplatte

7

sealing plate

8th

coating

11

u-profile

12

u-profile

13

sealing plate

14

coating

15

sealing plate

16

longitudinal ribs

17

Glue

21

clip

22

narrow U-profile of the bracket

23

wider U-profile of the bracket

24

sealing plate

25

Abschalungsplatte

26

Abschalungsplatte

31

u-profile

32

u-profile

33

hanger

34

injection hose

35

source tape

41

perforated sheet

42

perforated sheet

43

bulkhead

44

bulkhead

45

central channel

46

injection hose

51

perforated sheet

52

Glue

53

injection hose

54

Clipse

A

Concrete slab section

B

Concrete slab section

Claims (6)

1. A device for attaching a seal to a formwork board for use as lost formwork in a construction joint and/or expansion joint between two concrete structural elements (A, B), wherein the seal is used for sealing the joint against water, wherein the device is configured for attaching two formwork boards (5, 6; 25, 26) at a mutual distance in the joint and, furthermore, in such that a seal (7; 13; 15; 24; 34; 35; 46; 53) can be fitted, where necessary, subsequently which is effective on both board sides against the adjacent concrete in each case in the space range between the two formwork boards and wherein the device has at least a first bracket (3; 33), characterized in that the device has two U-profiles (1, 2; 11, 12; 22; 31, 32) arranged inversely to one another for receiving and attaching one formwork board (5, 6) respectively, which U-profiles are connected to one another by the at least one first bracket (3; 33) and that the seal (7; 34; 35) can be fitted between the U-profiles (1, 2; 11, 12; 22; 31, 32) connected to one another by at least a first bracket (3; 33).
2. The device according to claim 1, characterized in that a sealing plate (7) can be fitted as the seal between the U-profiles (1, 2) by inserting from one side, so that it projects beyond the U-profiles on both sides and engages with the at least one first bracket (3).
3. The device according to claim 2, characterized in that the at least one first bracket (3) stabilizes a sealing plate (7) engaging with it against twisting with respect to the insertion direction and/or that on one of the U-profiles (2) on the side opposite the at least one first bracket (3) at least one, preferably likewise bracket-shaped, element (4) is provided for stabilization of a sealing plate inserted between the U-profiles (1, 2) to prevent twisting with respect to the insertion direction.
4. The device according to one of claims 1 - 3 and having a seal, characterized in that a sealing plate (7; 13) made of a metal sheet or a plastic profile (15) provided with ribs is used as the seal.
5. The device according to claim 4, characterized in that the sealing plate (7; 13) is provided with a coating (8; 14) which bonds to wet concrete in a watertight manner.
6. The device according to claim 1 and having a seal, characterized in that an injection hose (34; 46; 53) or a water-blocking tape (35) is used as the seal in the space range between the two formwork boards.

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