EP3524744A1 - Compressible seal, seal arrangement and building with compressible seal - Google Patents

Abstract

Compression seal (1) with a clamping device (2) which has two pressure elements (3) and clamping elements (4), and a filling body (5) made of elastic, deformable material, which is arranged between the pressure elements (3) and which over flat pressure surfaces (7) of the Pressure elements (3) can be pressed by the clamping device (2) in one pressing direction and thereby expands perpendicular to the pressing direction in order to create a seal between at least two components (9, 9 ') via opposing sealing surfaces. The filling body (5) is polygonal in cross section with at least two flat longitudinal sides (6) facing the pressure surfaces (7) and with at least two opposite sealing sides (19) between the pressure surfaces (7), and the pressure surfaces (7). are rectangular in plan view, so that the filling body (5) expands exclusively on the circumference of the filling body (5) perpendicular to the pressing direction with its sealing side (19). The press seal is particularly suitable for creating a secure, controllable and subsequently exchangeable seal for a sealing arrangement or structures with prefabricated elements by arranging a receiving space (11) on the front side in the longitudinal direction for one or more press seals accessible for and after the bracing.

Description

The present invention relates to a press seal with a clamping device, which has two pressure elements and clamping elements, and arranged between the pressure elements filler of elastic deformable material which is compressible via flat contact surfaces of the pressure elements by the clamping device in a pressing direction and thereby extends perpendicular to the pressing direction to create a tight fit between two components over opposing sealing surfaces, as well as a seal assembly and construction with precast elements using the compression seal and the use of such a press seal.

In the construction of structures made of prefabricated elements, there is always the problem of ensuring a sufficiently secure watertight sealing of the joints. The prefabricated elements are usually finished part walls of any kind, be it for the construction of buildings, structures for flood protection, protective walls in nuclear facilities, tunneling, etc., but also in these construction projects existing other precast elements such as columns or support elements and the like. On the one hand, it is important to securely seal the precast elements with each other and, moreover, as far as necessary, to ensure a secure seal against the foundation.

When sealing against the foundation, it is known to provide this joint tapes or joint plates, which are used to seal movement and construction joints in waterproof concrete structures. These joint plates are embedded in both the foundation and in the precast element and thereby prevent the ingress of moisture. To seal the joint between the precast elements, elastic jointing materials are introduced. These may age over time and become leaky and may not provide a permanent, secure seal in certain applications.

For the sealing line through a wall, it is known to use annular press seals, which have the features mentioned.

The present invention is therefore based on the object to suggest a possibility of sealing between prefabricated components with each other, which allow particularly durable and thereby the use of precast elements in particularly critical applications.

This object is achieved by a compression seal with the features of claim 1 and a seal assembly and a structure with the features of claim 4 and 8 and the use according to claim 11. Further advantageous embodiments are shown in the respective dependent subclaims.

According to the invention, a compression seal is proposed, the filler body in cross-section polygonal with at least two mutually parallel planes, the pressure surfaces of the pressure elements facing longitudinal sides are provided with at least two opposite sealing surfaces between the pressure surfaces. The pressure surfaces are rectangular in plan view, so that the filler expands only at the periphery of the filler perpendicular to the pressing direction. The filler is thus a solid structure with a longitudinal extent, wherein the cross section is usually rectangular and the shape of the filler is cuboid, however, depending on the application, the training in cross section can be designed in such a way that in any case a compressive force can be applied by the clamping elements on the pressure surfaces on adjusted flat longitudinal sides. The sealing sides of the shaped body can also be adapted in shape as required by the arrangement of prefabricated components in which the press seal is used. As a result of the force applied to the pressure elements via the tensioning elements, which are expediently designed as stainless steel plates, the filling element expands exclusively in the outer circumferential direction and thus enables a secure sealing with its sealing sides. If it is ensured that the press seal remains accessible, a later tightening or replacement of the press seal is possible with decreasing sealing performance or aging. In principle, the filler body does not have to consist of one piece, but may also have a plurality of filler elements, which are preferably arranged between the pressure elements so that in each case a Füllkörperelement rests with its entire surface on the pressure surface. The shapes of the Füllkörperelemente may be different depending on the application, at least in cross section.

In cross-section, the filler is often rectangular, but in the simplest form trapezoidal or have any other conceivable configuration. The pressure surfaces are rectangular in plan view, but this does not exclude that they are curved or bent, depending on the application. The pressure surfaces are generally flat, but may also have projections in the form of tips, which, if necessary, penetrate into the filler.

Preferably, the clamping elements are screw means, in particular carriage bolts, accessible from one side of the clamping device for generating and adjusting the pressing force. Depending on the length of the clamping element and the filling body at least two clamping elements are provided. Due to the longitudinal extent of the clamping element, it is thus possible to realize a plurality of different lengths with a corresponding number of clamping means. This also allows the juxtaposition of several such clamping elements, for example in a channel and the subsequent replacement of the press seals, for example due to aging, provided that the channel remains accessible at least from one side.

According to a further advantageous embodiment, the press seal on two or more Füllkörperelemente with opposite flat sides, wherein the one flat side of the voltage applied to the pressure element Füllkörperelemente bear as a longitudinal side of the pressure surface and the other flat side facing the other or further between the two adjacent to the pressure element Füllkörperelementen is. A common variant is the use of two packing, so that between the packing still a flat component that fits, for example, between two clamping elements, can be included to seal this also or perpendicular to each other extending seals together. This can for example be a common in the sealing of concrete structures joint plate. In principle, however, it is also possible to insert more than two filler elements when required to include a plurality of spaced-apart sheet-like members in the press seal. In this case, lie between the two outer pressure elements several more Füllkörperelemente with their flat sides together.

The sealing arrangement according to the invention for prefabricated elements of buildings comprises in each case in the sealing side a channel along the prefabricated element which forms a receiving space with the channel of the other prefabricated element. This receiving space thus extends along the height of the precast element and serves to receive a seal extending in the longitudinal direction of the receiving space in the form of at least one of the above-described press seals. As already mentioned above, this can be a press seal extending in the longitudinal direction or even a plurality of press seals which also press against one another, since these expand on the circumference as a result of the clamping force, as described above. Furthermore, the packing of the press seal are sealingly against the precast elements or can be brought by conditioning, the clamping elements of at least one clamping element from one side of the structure can be braced. The latter means that between the precast elements at least on one side of the wall formed remains a gap which is sufficient to with a tool, the clamping elements clamp and thus to realize the seal between the precast elements. This arrangement has the particularly great advantage that, for example, in buildings with high potential for risk in the event of leakage for the population, such as flood protection walls or walls at nuclear power plants, a check of the tightness and possibly a retightening of the press seals or replacement of a press seal is possible. For this purpose, the receiving space extending in the longitudinal direction of the sealing side remains accessible even after filling with the press seal or seals, in order to be able to replace it if necessary.

According to a further advantageous embodiment of the sealing arrangement, the at least one press seal includes a joint plate arranged in a base foundation for the prefabricated elements along the support surface of the precast elements extending on the foundation between two packing elements. For this purpose, an above-mentioned press seal with two approximately equal size packing is used, wherein the distance of the clamping elements is formed so that the joint plate fits between them. The installation of such a press seal is of course prior to concreting the ground foundation after the precast elements have been placed on the prepared reinforcement. To this end, the press seal enclosing the joint sheet has to project out of the receiving space and projects into the foundation. For such a configuration, it is particularly expedient if the seal is formed from the first press seal enclosing the joint plate and at least one further press seal arranged in the receiving space, in order to allow the above-mentioned later exchangeability with aging for the at least second press seal. The first, the joint plate enclosing press seal is inevitably no longer interchangeable.

The pressure elements of the at least one further pressure seal preferably at least partially cover the filling body of the first pressure seal. In this area, the joint between the press seals is thereby additionally covered by the pressure elements on both sides of the filling body and achieved an additional seal and mechanical connection. The pressure elements of the at least one further project beyond the filling of the at least one further press seal at least on one side. When using multiple press seals, this can be realized at each joint.

An inventive construction with prefabricated elements, which face each other with sealing sides, advantageously has a channel in each case in the sealing side along the finished part element, which forms a receiving space with the channel of the other prefabricated element and in which a seal extending in the longitudinal direction of the receiving space is arranged by at least one of the above-described press seal. The filler is sealingly against the precast elements and the clamping elements are accessible from one side of the structure. Under finished element in this sense, for example, straight or curved walls on the ground or on other walls, tunnel walls but also understood any connections, for example, between concrete columns and precast elements.

Accordingly, an already mentioned preferred structure may comprise precast elements on a foundation foundation, in which the seal encloses a joint plate projecting into the foundation. It is further preferred that the structure has a seal with a plurality of press seals, in particular when the seal encloses the joint plate, wherein particularly preferably the pressure elements of the subsequent further press seal at least partially cover the packing of the first, the joint plate enclosing press seal. Basically, the interchangeability can be simplified by the use of multiple press seals. In the area of the joint plate, the pressure seal enclosing the joint plate is inevitably not interchangeable, so that it is expedient to make it short and to connect one or more further pressure seals. Due to the overlap of the pressure elements additional tightness and mechanical stability can be achieved.

The object of the invention is also achieved by the use of at least one of the press seal described above in a building for sealing facing sealing sides of finished elements.

The invention thus opens up a new application possibility for precast components, since this eliminates the problem of tightness, in particular in flood protection, but also in other critical applications. The ability to inspect the seal, re-tension and, if necessary, replace the seal, ensures a highly secure seal.

The features and feature combinations mentioned above in the description as well as features mentioned below in the description of the figures and / or features shown alone in the figures and feature combinations can be used not only in the respectively specified combination but also in other combinations or in isolation. For carrying out the invention, not all features of claim 1 must be realized. Also, individual features of the claims relating to the seal assembly, structure, or use may be replaced by other disclosed features or combinations of features.

Figur 1

die perspektivische Ansicht einer erfindungsgemäßen Pressdichtung mit einem zweigeteilten Füllkörper;

Figur 2

eine Seitenansicht der unverspannten Pressdichtung;

Figur 3

die Teilansicht eines Bauwerks aus Fertigteilrandelementen im Bereich der einander zugewandten Abdichtseiten in der Draufsicht;

Figur 4

die Ansicht des Bauwerks von der Seite; und

Figur 5

eine Stirnansicht auf ein Fertigwandelement auf dem Fundament des Bauwerks.

All of the claims, the description or the drawing resulting features and / or advantages including design details, spatial arrangement and method steps may be essential to the invention both in itself and in various combinations. In the figures, the same or similar components are identified by the same or similar reference numerals. They represent schematically:

FIG. 1

the perspective view of a press seal according to the invention with a two-part filler;

FIG. 2

a side view of the unclamped press seal;

FIG. 3

the partial view of a structure of prefabricated edge elements in the region of the facing sealing sides in plan view;

FIG. 4

the view of the building from the side; and

FIG. 5

an end view of a prefabricated wall element on the foundation of the building.

The in the FIGS. 1 and 2 press seal 1 shown has a clamping device 2, which consists of two pressure elements 3, 3 'and in this embodiment two clamping elements 4. Between the pressure element 3, 3 'is a packing with in the embodiment, two Füllkörperelementen 5', 5 ", with their flat longitudinal sides 6 to the pressure surfaces 7 of the respective pressure element 3, 3 'on the one hand and against each other with the flat longitudinal sides 6' on the other Depending on the length of the press seal 1, there are either two or more clamping elements in the form of carriage bolts 4, which with their screw heads in usually corresponding, not shown square openings in the pressure element 3, preferably designed as a stainless steel plate, einliegen to a twisting during clamping on the other side of the pressure element 3 ', also preferably designed as a stainless steel plate to prevent FIG. 1 shows the press seal 1 in the tensioned state, so that the Füllkörperelemente 5 ', 5 "at the outer periphery perpendicular to the pressing direction by the clamping elements 4 to expand and thereby allow on its sealing side 19 a sealing contact between two objects.

The use of the press seal 1 is in the FIGS. 3 to 5 shown, wherein in the FIGS. 3 to 5 By way of example, the invention will be explained with reference to the structure of a structure 5 made of straight finished wall elements 9, 9 'as a precast element in conjunction with a joint plate 10. Of course, in other structures, the joint plate 10 can be omitted, so that here only press seals 1 with only one filler 5 can be used. In the embodiment according to the FIGS. 3 to 5 the great advantage of the invention is best seen.

In the plan view of the finished wall elements 9, 9 'in FIG. 3 is in each finished wall element 9, 9 'a channel 10, 10' is formed. The channels 10, 10 'together form a receiving space 11 in which a in the longitudinal direction of the receiving space 11 extending seal 12 is arranged. The seal 12 consists in the embodiment of two press seals 1, 1 'with different length ( FIG. 4 . 5 ). FIG. 3 shows the upper press seal 1 'which is introduced from above in the unstressed state in the receiving space 11 and then clamped over the gap 13 between the prefabricated wall elements 9, 9'. As already mentioned, in this embodiment, in the area of the press seal 1, overlapping joint plates 14, 14 'are indicated by dashed lines, which are enclosed by a press seal 1 of the seal 12 which is not visible in this view.

FIG. 4 shows the side view with a press seal 1, which includes the joint plate 14 and a subsequent significantly longer press seal 1 ', which in its full length in the FIG. 5 is shown. The press seal 1 has two clamping elements 4, between which the joint plates 14, 14 'are arranged. The press seal 1, for this purpose has two Füllkörperelemente 5 ', 5 ", as in the FIGS. 1 and 2 illustrated, while the much longer press seal 1 ', which extends to the region of the upper edge 15 of the finished wall elements 9, 9', only one filler 5 may have. In the exemplary embodiment, the pressure elements 3 of the upper press seal 1 'cover the two-part filler 5 of the lower press seal 1, which includes the joint plate 14. Thus, the joint between the two packing 5 of the upper compression seal 1 'and the lower compression seal 1 is covered by the pressure elements 3 of the upper compression seal 1' in this area and increases the sealing ability and mechanical distortion.

FIG. 5 shows the prefabricated wall element 9 together with a base foundation 16. In the channel 10, the pressure elements 3, 3 'and the packing 5 of the upper compression seal 1' and the pressure elements 3, 3 'and the Füllkörperelemente 5', 5 "of the lower compression seal 1 are shown , which pinch between them the joint plate 14. For reasons of simplification, the clamping elements 4 are only hinted at.

The preparation of such a structure 8 is carried out such that the bottom foundation 16 is prepared with the reinforcements 17, then the prefabricated wall elements 9, 9 'with concreted and protruding from the support surface 21-reinforcing bars 18 and both in the direction of ground foundation 16 and perpendicular to something protruding Joint plates 14, 14 'placed and provisionally fixed with overlapping joint plates 14, 14' in a conventional manner. In the next step, the lower compression seal 1 is placed around the overlapping joint plates 14, 14 'and braced. Now, the prepared soil foundation can be concreted, wherein the press seal 1 'For the rest of the receiving space 11 before or after inserted into this and strained. It may be expedient, starting from a certain length of the seal 12 to use a plurality of press seals 1 with one or more filler elements 5, 5 'for better handling. The reinforcement 18 protrudes out of the prefabricated wall elements 9.

Claims (13)

Press seal (1) with a clamping device (2), which has two pressure elements (3) and clamping elements (4), and between the pressure elements (3) arranged filling body (5) made of elastic deformable material, the plane over flat contact surfaces (7) Pressure elements (3) by the clamping device (2) is compressible in a pressing direction and thereby extends perpendicular to the pressing direction to produce over opposite sealing surfaces a sealing system between at least two components (9, 9 '), characterized in that the filler (5 ) in cross-section polygonal with at least two mutually parallel planar, the pressure surfaces (7) facing longitudinal sides (6) and at least two between the pressure surfaces (7) opposite sealing sides (19) is provided, and the pressure surfaces (7) in plan view rectangular are formed, so that the filler body (5) exclusively at the periphery of the filling body (5) perpendicular to the Pressr ichtung with its sealing side (19) expands. Press seal (1) according to claim 1, characterized in that the clamping elements (4) screw means, in particular carriage bolts are accessible from one side of the clamping device (2) for generating and creating the pressing force, wherein depending on the length of the clamping device (2) and the filling body (5) at least two clamping elements (4) are provided. Press seal (1) according to claim 1 or 2, characterized in that the filling body (5) two or more Füllkörperelemente (5 ', 5 ") is provided with opposite designed as a flat sides long sides (6), wherein the flat side of each of the pressure element (3) adjacent Füllkörperelements (5 ', 5 ") on the pressure surface (7) is applied and the other flat side of the other or further between the two on the pressure element (3) adjacent Füllkörperelements (5', 5") faces. Sealing arrangement for structures (8) with prefabricated elements (9, 9 ') which face each other with their sealing sides (20), characterized in that in each case in the sealing side (20) a channel (10) along the prefabricated element (9, 9' ), which forms with the channel (10) of the other prefabricated element (9, 9 ') a receiving space (11) in which a in the longitudinal direction of the receiving space (11) extending seal (12) in the form of at least one press seal (1 , 1 ') is arranged or can be arranged according to one of claims 1 to 3, the filling body (5) with its sealing side (19) sealingly against the finished elements (9, 9') or can be brought into abutment, wherein clamping elements (4) of at least one press seal (1, 1 ') can be braced from one side of the structure. Sealing arrangement according to claim 4, characterized in that the at least one press seal (1, 1 ') in a bottom foundation (16) for the finished elements (9, 9') along the on the bottom foundation (16) extending support surface (21) of the finished elements (9, 9 ') arranged joint plate (14) between two Füllkörperelementen (5', 5 ") includes. Sealing arrangement according to claim 5, characterized in that the press seal (1 ') enclosing the joint plate (14) projects out of the receiving space (11) into the base foundation (16). Sealing arrangement according to claim 5 or 6, characterized in that the seal (12) from the joint plate (14) enclosing the first press seal (1 ') and at least one further in the receiving space (11) arranged press seal (1) is formed. Sealing arrangement according to claim 7, characterized in that the pressure elements (3) of the at least one further press seal (1) at least partially cover the filling body (5) of the first press seal (1 '). Building (8) with prefabricated elements (9, 9 ') which face each other with sealing sides (20, 20'), characterized by a channel arranged in each case in the sealing side (20, 20 ') along the finished element (9, 9') (10, 10 ') which forms a receiving space (11) with the channel (10', 10) of the other prefabricated element (9 '), and in the form of a seal (12) extending in the longitudinal direction of the receiving space (11) at least one press seal (1) according to one of claims 1 to 3 is arranged, the filler body (5 ', 5 ") sealingly against the finished elements (9, 9') and the clamping elements (4) from one side of the building (8). are accessible. Building according to claim 9, characterized in that the prefabricated elements (9, 9 ') are arranged on a base foundation (16) and the seal (12) encloses a joint plate (14) projecting into the base foundation (16). Building (8) according to claim 10, characterized in that the joint plate (14) enclosing the seal (12) a first the joint plate (14) enclosing press seal (1 ') and at least one further in the receiving space (11) arranged on the first Press seal (1 ') subsequent press seal (1). Building (8) according to claim 11, characterized in that the pressure elements (3) of the at least one further press seal (1) at least partially cover the filler body (5) of the first press seal (1 '). Use of at least one press seal (1, 1 ') according to one of claims 1 to 3 in a building (8) for sealing facing sealing sides (20, 20') of prefabricated elements (9, 9 '), wherein the facing sealing sides (20 , 20 ') each have a longitudinally extending channel (10, 10'), with the channel (10, 10 ') of the other sealing side (20, 20') of a further prefabricated element (9, 9 ') a receiving space ( 11) for the at least one press seal (1, 1 ') form, in which the at least one press seal (1, 1') used and against the sealing sides (20, 20 ') is clamped.

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