EP2725157B1 - Waterstop - Google Patents

Description

The invention relates to a building with two concrete components, a working joint between the concrete components and a joint plate for sealing the construction joint according to the preamble of claim 1, wherein the first concrete concrete component a lower, reinforced concrete component and then concreted a built on the lower, upper concrete component can be. The concrete element first concreted is also referred to below as the first and the concrete element subsequently concreted as the second concrete component.

Furthermore, the invention relates to the use of a joint plate in the construction of a building with a first and a second concrete component and a work joint between the concrete components for sealing the construction joint (A) according to the preamble of claim. 6

STATE OF THE ART

Joint plates for sealing a construction joint between a first and a second concrete component of a structure are, for example DE 10 2005 005 525 A1 and DE 298 17 227 U1 known. To achieve the required installation length usually several joint plates are joined together.

The sealing effect of the joint plates is based essentially on the detour principle. Water penetrating into the construction joint must circulate the plate of the joint plates arranged transversely to the construction joint in order to be able to pass through it. This circulation is the more difficult the longer the detour. Only from a certain embedment depth of the plate in both concrete components in practice tightness is assumed. In general, therefore, a certain minimum embedment depth of the plate is required in both concrete components. For joint plates for sealing a working joint between a lower, reinforced concrete component and an upper concrete component erected thereon, the upper flange of the lower concrete component has a limiting effect on the possible embedment depth.

By additional measures names such as in particular by coatings of the type of DE 42 44 972 C5 If the sealing effect of the joint plates can be improved, but also the embedment depth remains a critical size, which must be adhered to by the customer and must be checked after creation of the first and prior to the creation of the second concrete component.

Also known joint plates with an L-shaped profile, one leg of the profile, the said plate and the other, shorter leg forms a skirting, with which the joint plate is placed on the upper flange of the reinforcement of the lower concrete component, see, eg DE 298 17 227 U1 , In addition to their stability caused by the skirting the known joint plates are stiffened by the skirting in the longitudinal direction.

Out DE 20 2008 004 074 U1 is a building with two concrete components, a working joint between the concrete components and a joint plate for sealing the working joint known, the joint plate consists of an elongated plate which is installed along the working joint and this transverse bridging with embedment depths in both concrete components. The plate is stiffened in its longitudinal direction by bends and can be provided with full or partial coatings to improve their sealing effect.

PRESENTATION OF THE INVENTION

The invention has for its object to facilitate in the creation of a structure of the aforementioned type or in the mentioned use of a joint plate for the preparation of such a structure, the compliance and control of the respective embedment depth of the joint metal plate. This object is achieved with respect to the structure by the features of claim 1 and with respect to the use of the joint plate by the features of claim 6. Advantageous embodiments of the joint plates used therein are given in the respective dependent claims.

In accordance with claim 1, the embedment depths correspond to at least minimum embedment depths to be maintained and the joint metal plate is provided along this minimum binding depth to be observed with a marking which is in each case suitable for its identification.

According to claim 6, the joint metal plate is provided with an appropriate marking for minimizing Einbindetiefen each mark along these Einbindetiefen and de plate along the working joint and this transversely bridged so installed in the concrete components that the marking along the minimum to be observed in the first concrete component installation depth in first concrete component and the marking along the minimum to be observed in the second concrete component embedment depth in the second concrete component comes to the arrangement.

After concreting the first concrete component and before concreting the second concrete component, the marking is no longer visible along the minimum embedment depth to be maintained in the first concrete component. In contrast, however, the marking (33) is still visible along the embedment depth (E2 ') to be minimally observed in the second concrete component (20). As a result, after concreting the first concrete component and before concreting the second concrete component immediately, so to speak "at first sight" and without extensive remeasuring recognizable whether the prescribed minimum embedment depth was observed in the first concrete component and whether the prescribed embedment depth be met in the second concrete component can. When concreting a first, lower concrete component also the concrete cover of the reinforcement can be aligned to the one mark.

The markings are preferably colored markings, ie they should stand out clearly visible from the color of the adjacent areas of the joint plate. They can be designed as longitudinal strokes.

If the minimum embedment depths in both concrete components are different or for other reasons, a certain installation orientation of the joint plates with respect to the first or second concrete component is desired or required, the markings can be designed differently. In particular, different colors come into question here.

In the known joint plates with L-shaped cross-section of the skirt designed as a skirt shorter leg, if they are used to seal a working joint between a lower, reinforced concrete component and an upper concrete component erected thereon, is of limited value, since the joint plates to achieve a sufficient Stability in their upper area anyway usually still need to be additionally attached. On the other hand, this skirting proves to be disadvantageous where the joint plates, for example, must be bent in a building corner. The skirting makes it much more difficult to turn. If necessary, cuts must be made in the skirting, as for example DE 103 01 627 A1 known and even provided by default. Bending the known sheets without such cuts, deforms the skirting to form a wave-shaped deflection. If it comes to a deflection down and comes to such a deformed joint plate with this deflection on the reinforcement of the lower concrete component to the support, there is a reduction of the embedment depth.

If the second leg forms a header along the upper longitudinal side of the first leg, a deflection of the type described acts on this header when bending the joint plate to the critical depth of embedment in the lower Concrete component is not made. In the upper concrete component, since here the reinforcement usually runs upright, there is enough space at the top to accommodate bends of the type mentioned.

By the header, on the other hand, the stiffening of the joint plate in the longitudinal direction is maintained, which facilitates its handling and installation in a straight line, such as along the intended escape of an upper concrete component. To achieve this effect, the relative angle between the two legs does not necessarily have to be exactly right-angled.

To achieve a sufficient longitudinal stiffening, it is sufficient if the header has a width of only 0.5 - 1.0 cm. With this small width, the header bar counteracts a bending of the joint plate even little resistance, at least if it has a thickness of 0.5 -1.2 mm. The joint plate can be bent without major use of force, with cuts in the header are not required to facilitate or even to enable the turn. The resulting deflection in the header is also relatively small.

The header of the inventive joint plate can be made by bending the elongated plate.

The elongated plate typically has a length of 1.5-2.5 m, preferably 2 m, and a width of 120-200 mm, preferably 160 mm. Finally, it is preferred if the elongate plate is at least partially provided in its lower region, preferably at least up to a height of 120 mm, with a coating which forms a sealing connection with fresh concrete.

The joint plate according to the invention may also be designed as a multi-layer, if necessary, as for example from DE 42 44 972 C5 is known.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1

in geschnittener Darstellung schematisch eine typische Einbausituation eines erfindungsgemässen Fugenblechs in einem Bauwerk zur Abdichtung einer Arbeitsfuge zwischen einer Bodenplatte und einer darauf errichteten Wand;

Fig. 2

ein Fugenblech für ein Bauwerk nach der Erfindung; und

Fig. 3

das Fugenblech von Fig. 2 in einem abgebogenen Zustand.

With reference to the drawings, an embodiment of the invention will be explained below. Show it:

Fig. 1

in a sectional representation schematically a typical installation situation of a joint plate according to the invention in a building for sealing a working joint between a base plate and a wall erected thereon;

Fig. 2

a joint plate for a building according to the invention; and

Fig. 3

the joint plate of Fig. 2 in a bent state.

WAYS FOR CARRYING OUT THE INVENTION

In Fig. 1 10 denotes a concrete floor slab with its reinforcement 11 and 20 a wall constructed thereon, also concreted with its reinforcement 21. To seal the horizontal working joint A between the base plate 10 and the wall 20 against the passage of water, a joint plate 30 is installed transversely to the working joint A. , The joint plate 30 is essentially an elongate plate 31, for example made of sheet iron, extending in the bottom plate 10 and the wall perpendicular to the cutting plane of Fig. 1 extends. In this longitudinal direction a plurality of joint plates can be strung together. One or more of these joint plates may for example be bent in a building corner. Before concreting the joint plate 30 is held in its illustrated position by brackets, not shown, which are supported for example on the reinforcements 11 and / or 21.

In the bottom plate 10, the joint plate 30 is on the upper flange 12 of the reinforcement 11. The embedment depth E1 in the concrete of the bottom plate 10 is limited by and corresponds to the maximum concrete cover 13 of the upper flange 12. In the wall, the reinforcement 21 is perpendicular, so that here the embedment depth E2 of the joint plate 30 is not limited by the reinforcement. It is chosen in the wall 20 because considerably larger. The low embedment depth E1 in the bottom plate 10 can be a critical factor. In order to be able to guarantee the tightness of the joint A, a certain minimum value must be maintained for this embedment depth E1.

Fig. 2 shows a portion of a joint plate 30, which is mainly an elongated plate 31. According to the present invention, the plate 31 for maintaining the minimum embedment depth E1 'in the bottom plate 10 approximately at the level of this minimum embedment depth E1', ie provided with a corresponding distance from its lower edge, with a marker 32. When concreting the bottom plate 10 is simply filled so much concrete until the mark 32 just disappears in the concrete. Too low embedment depth would be immediately recognizable by a still visible marker 32.

The plate 31 is provided for compliance with the minimum embedment depth E2 'in the upper concrete member 20 with a corresponding distance from its upper edge with a marker 33. So that the minimum embedment depth E2 'in the upper concrete component 20 can be maintained, the marking 32 after concreting the lower concrete component 10 must still be visible. The visibility of the marking 33 also indicates that a joint plate marked as described was actually used and the non-visibility of the marking 32 is a guarantee for compliance with the minimum embedment depth E1 'in the lower concrete component 10.

In Fig. 2 the markers 32 and 33 are horizontally continuous lines, which stand out from the background by a different coloration. They also differ from each other, for example, in terms of their color, which is preferably selected red for the marker 32 and green for the marker 33. This coloring emphasizes the above rule that the mark 32 may not be visible after concreting the lower concrete component 10, the mark 33, however, must still be visible.

Instead of strokes like in Fig. 2 however, other types of markings in the form of patterns or colored areas could also be used.

The joint plate 30 of Fig. 2 may be provided with a coating 34, if necessary, which improves its sealing effect. This may be a coating of a swelling on water contact material. Preferably, however, a coating is used which is able to enter into a connection with fresh concrete. The coating 34 may, like the markings 32 and 33, also be applied to the plate 31 on one or both sides.

The joint plate 30 of Fig. 2 has an L-shaped cross-section, wherein its broader leg is formed by the plate 31. The shorter leg forms a narrow head strip 35 along the upper longitudinal side of the plate 31. The width of this head strip 35 is preferably only 0.5 - 1 cm. Despite this small width, the plate 31 and the joint plate 30 is effectively stiffened as a whole in the longitudinal direction by the Kopfleiste35, which facilitates their transport and their installation in straight alignment with the wall 20, for example.

On the other hand, due to the small width of the head strip 35, this stiffening is not so pronounced that it opposes a bending of the joint plate 30, for example for fitting into a building corner, a greater resistance. Rather, the joint plate 30 can be bent relatively easily. Fig. 3 shows the section of the joint plate 30 of Fig. 2 bent at a right angle. By bending head strip 35 has deformed 36 to form a wave-shaped deflection 36 upwards. Corresponding to the small width of the head strip 35, this deflection is only weak. By being arranged in the upper concrete component, in this case the wall 20, where there is plenty of space upwards undisturbed by the reinforcement 21, it does not adversely affect the positioning of the joint plate 30 and in particular its embedment depth in the base plate 10.

Other installation situation than that in Fig. 1 shown are of course also possible. In particular, the joint plate according to the invention can also be installed vertically between two successively concreted wall sections, wherein also minimum embedment depths in both concrete components must be maintained and the strip 35 can be utilized for straight alignment.

LIST OF REFERENCE NUMBERS

10

Concrete bottom plate

11

Reinforcement of the base plate

20

concrete wall

21

Reinforcement of the wall

31

elongated plate 31, legs of the joint plate

12

Upper flange 12 of the reinforcement 11

13

Concrete cover

21

Reinforcement of the wall

32

mark

33

mark

34

coating

35

Header, shorter leg

36

deflection

A

construction joint

E1

Embedment depth in the bottom plate

E2

Embedment depth in the wall

Claims (10)

1. Structure having two concrete components (10, 20), a construction joint (A) between the concrete components (10, 20), and a joint sheet (30) for sealing off the construction joint (A),
   wherein the joint sheet (30) is composed of or comprises an elongate plate (31) which is installed along the construction joint (A), and so as to bridge the latter transversely, with anchoring depths (E1, E2) in both concrete components (10, 20),
   characterized
   in that the anchoring depths (E1, E2) correspond at least to anchoring depths (E1', E2') that must be adhered to as a minimum, and
   in that the plate (31) is, along these anchoring depths (E1', E2') that must be adhered to as a minimum, provided with a marking (32, 33) which is in each case suitable for indicating said anchoring depths.
2. Structure according to Claim 1, characterized in that the markings (32, 33) are coloured markings.
3. Structure according to either of Claims 1 and 2, characterized in that the markings (32, 33) are in the form of lines.
4. Structure according to any of Claims 1 to 3, characterized in that the markings (32, 33) are of different colours, in particular are red and green.
5. Structure according to any of the preceding claims, characterized in that the joint sheet (30) is provided with a coating (34) which forms a sealing connection with fresh concrete.
6. Use of a joint sheet (30) during the erection of a structure, having a first (10) and a second concrete component (20) and a construction joint (A) between the concrete components (10, 20), for the purposes of sealing off the construction joint (A),
   wherein the joint sheet (30) is composed of or comprises an elongate plate (31) which is suitable for installation along the construction joint (A), and so as to bridge the latter transversely, with anchoring depths (E1, E2) in both concrete components (10, 20),
   characterized
   in that the plate (31) is provided with a marking (32, 33) which is in each case suitable for indicating the anchoring depths (E1', E2') that must be adhered to as a minimum, along said anchoring depths, and
   in that the plate (31) is installed along the construction joint (A), and so as to bridge the latter transversely, into the concrete components (10, 20) such that the marking (32) comes to be arranged in the first concrete component (10) along the anchoring depth (E1') that must be adhered to as a minimum in the first concrete component (10), and the marking (33) comes to be arranged in the second concrete component (20) along the anchoring depth (E2') that must be adhered to as a minimum in the second concrete component.
7. Use according to Claim 6, characterized in that the markings (32, 33) are coloured markings.
8. Use according to either of Claims 6 and 7, characterized in that the markings (32, 33) are in the form of lines.
9. Use according to any of Claims 6 to 8, characterized in that the markings (32, 33) are of different colours, in particular are red and green.
10. Use according to any of the preceding claims, characterized in that the joint sheet (30) is provided with a coating (34) which forms a sealing connection with fresh concrete.

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