EP3137696A1

EP3137696A1 - Device for bridging an expansion joint

Info

Publication number: EP3137696A1
Application number: EP15722104.5A
Authority: EP
Inventors: Benjamin Kloss; Christian Schlosser; Michael Maier; Simon Hoffmann
Original assignee: Mageba GmbH
Current assignee: Mageba GmbH
Priority date: 2014-04-29
Filing date: 2015-04-28
Publication date: 2017-03-08
Also published as: WO2015165891A1; EP2940225A1

Abstract

The invention relates to a device for bridging an expansion joint (3) between two structural elements (1, 2), comprising an anchor structure (6) which is provided on least one of the structural elements (1, 2) adjacently to the expansion joint (3) and comprising a functional plate (17) which is removably connected to the anchor structure (6) by means of a plurality of screw connections (18). The anchor structure (6) has multiple anchor connecting pieces (7) which extend transversely to the expansion joint (3) and which comprise anchor elements (30) that are embedded in a casting block of the respective structural element (1, 2). Each screw connection (18) is paired with an open space (22) which is laterally delimited by two anchor connecting pieces (7) for receiving a threaded element (20) of the respective screw connection (18) in a replaceable manner.

Description

Device for bridging an expansion joint

The present invention relates to a device for

Bridging an expansion joint between two building structures. In particular, it relates to such a traversable

Expansion joint bridging device, which is provided on at least one of the structural body adjacent to the expansion joint anchor structure and one by means of a plurality of

Screw connections releasably connected to the anchor structure associated functional plate, wherein the anchor structure has a plurality of transverse to the expansion joint extending anchor webs in a

Vergussblock the relevant structure body embedded anchoring elements, wherein the anchor webs the

Anchor elements or the anchor elements are fixedly attached to the anchor webs, and further wherein the

Screwed in each case a free space for interchangeable receiving a threaded element of the relevant

Assigned screw.

Expansion joints are unavoidable in various structures in order to prevent thermal expansion of building structures resulting in damage. For the bridging of such expansion joints to make them passable, are in different

Designs designed expansion joint bridging devices known. One of the criteria for the selection of suitable bridging devices is the required

Work area, i. the difference between the maximum and minimum permissible width of the joint gap. Regardless of the design of such Dehnf gene bridging devices in practice various requirements are placed, which are partly in conflict with each other.

Significant aspects in this respect are particularly high

Functional reliability and reliability, low Noise when crossing the expansion joint, high

Lifetime even under extreme conditions of use (frost, de-icing salt, heavy goods traffic), low production costs, high ease of maintenance, low maintenance.

An expansion joint bridging device of the initially

mentioned type is known from EP 1359254 Bl. The anchoring elements embedded in the potting block are here fixedly attached to the anchor webs, namely with these

welded anchoring bracket formed of reinforcing steel, wherein the - the load transfer of the function plate in the associated building body serving - anchor bars are embedded themselves in the grouting block. A special focus in this bridging device forms the

Serviceability in the sense that the as

Functional plates provided finger plates with a

comparatively little effort can be renewed, the nuts provided as threaded elements of the

Screw connections - by their interchangeable accommodation in accessible from the joint gap, through to a

Base plate of the anchor structure welded U-profiles

formed free spaces - can also be renewed without much effort when renewing the finger plates, which is favorable in terms of the reliability of

Screw connections.

From US 2005/0241084 AI a navigable device for bridging an expansion joint is known in which a

Functional plate is connected to the fixed to a building structure anchor structure by means of screw. The anchor structure is essentially box-like with an upper horizontal plate, a rear vertical plate, and a lower horizontal plate. At the The rear and lower plates have anchor bolts embedded in the structure. The box-shaped

Anchor structure is stiffened by plates which are arranged in the enclosed cavity and welded to the upper, the rear and the lower plate.

Based on this prior art, the present invention seeks to provide an expansion joint bridging device of the type described above, which is characterized by an improved load behavior.

The above-mentioned problem is solved by an expansion joint bridging device of the type specified in the interchangeable receiving at least one threaded element (in particular a nut) of the relevant screw connection serving free spaces are bounded laterally by two anchor webs. The inventive

In other words, the expansion joint bridging device is characterized in particular by having two anchor webs, i. two in the load transfer from the

Functional plate in the building body into integrated webs in a potting block of the relevant

Structural body embedded anchoring elements which define the free space receiving the threaded elements, wherein the anchor elements (for example, by appropriate profiling of the anchor webs) an integral part of the relevant

Anchor webs or but may be separate, fixed to the anchor webs parts. In this way, because load-carrying anchor bars particularly close to the

Arranged screw connections, ie, in particular, these may be immediately adjacent, a shortest possible flow of force from the functional plate (eg a finger plate having the passable surface) on the Verseraubung in the two adjacent AnkerStege and of these in the building body, in the Vergussblock the anchor elements of the respective anchor webs are embedded. Thus, in implementation of the present invention

load-induced deformations of elements of the expansion joint bridging device compared to the prior art significantly reduced. This in turn sustainably benefits their load behavior under changing loads. With

decreasing mechanical stress of the elements of the

Expansion joint bridging device also becomes its

Increased service life and reliability; and

Maintenance intervals can be extended. As a result, thus, the execution of the expansion joint bridging device according to the present invention results in a whole series of practical advantages with considerable effects.

In a special way, the advantages set out above can be achieved if, according to a first preferred embodiment of the invention, the two each have one

Free space delimiting, preferably even embedded at least partially embedded in the potting anchor webs symmetrically to the respective screw and arranged are executed. The achievable in this way symmetrical

Load transfer into the potting block of the building body minimizes the load-induced deformations of elements of the expansion joint bridging device.

Another preferred embodiment of the present

The invention is characterized in that permanently mounted as anchor elements on the anchor bar in question head bolts or permanently attached to the respective anchor ridge

Anchor loops (eg bent from a round profile) provided are. The corresponding head bolts are preferably laterally from the respective anchor ridge off. This allows the head bolts with U-shaped reinforcement loops too

which are below the head bolts in the

Structural body are anchored, which is favorable from the point of view of assembly (including a possible renewal). With regard to the power flow is still of

Advantage, if at least a portion of the head bolts (one side) is attached to the respective anchor ridge where this (on the opposite side) the space for the

Threaded elements of the screw limited. Outside of that area where the respective anchor web limits the associated free space, provided head bolts can protrude from the anchor web to both sides. This can be done under

Circumstances in turn be advantageous for a favorable load transfer from the anchor bar in the building body. Anchor loops firmly connected to the anchor web can possibly.

staggered be provided in several levels; This significantly reduces the loads acting on the individual anchor loops.

According to another preferred embodiment of the invention, it is provided that at least some anchor webs each have at least one opening through which extends the potting block for producing a

positive connection between anchor bridge and

Cast block. The anchor bars are in this case

particularly easy to manufacture.

Additional anchor elements in the form of embedded in the Vergussblock rods can enforce the breakthroughs.

In this concept, these additional anchor elements preferably penetrate in each case a plurality of anchor webs, that is to say at least both of those anchor webs which cooperate with one another in cooperation with one another limit assigned, arranged between them free space.

Yet another preferred embodiment of

The present invention is characterized in that the anchor structure has at least one base limb extending along the expansion joint, with which the anchor structure

Anchor bars are connected. The connection in question can take place directly between the anchor webs and the base leg or indirectly, i. E. indirectly via a further component of the anchor structure (such as, for example, a cover part firmly connected to the two anchor webs; and the connection can be permanent, i. insoluble solid (e.g.

be welded), or solvable, the latter in particular on those screw, with which the

Function plate is fixed to the anchor structure. Of the

Base leg preferably extends over such a length that it is connected to a larger number of anchor webs. He typically limits that to the

Grout block in which the anchoring elements are embedded, poured out area of the relevant building body upwards. The base leg can in particular also form the upper boundary of the free spaces, which are bounded laterally by a respective pair of associated Anke webs. This is not compelling, however; because in accordance with a particularly preferred development namely that the free spaces are bounded above by separate cover, which are firmly connected to the two associated anchor bars, eg welded. In this case, a pair of anchor webs together with the cover (and optionally a bottom part) preferably forms a prefabricated anchor unit which delimits the respective free space at three (or four) sides. By factory prefabrication of said anchor units they can be manufactured with high precision become. In particular, the surfaces of the lid, on which advantageously the base leg rests flat, already machined in the interest of optimal contact and optimum power transmission from the base leg in the anchor units factory.

A fixed bottom part, which is arranged between the two anchor webs and firmly connected to form an anchor unit with these, although it is preferably provided (see above), but is not essential. Rather, the free space can be limited to the bottom directly through the potting block. This is especially true if the potting block is cast in two stages, namely in a first stage to the level of the floor of the free space and, after curing of the first cast structure, in a second stage to

final level, in which case between the two laterally limiting armature webs laterally a conclusion (eg. An end plate) is provided which prevents the penetration of cast in the second stage potting compound in the free space. Also can be dispensed in particular on the free space down limiting separate bottom part when pouring the

Vergussblocks between the anchor bars a core is received, whose shape corresponds to the space to be formed and which is removed later, after curing of the Vergussblocks. In the core, especially when the core is destroyed in its removal, already the threaded elements

be positioned in the correct position. If, in the sense set out above, the free space during the casting of the casting block is kept free by a core, then it is not necessary to have a firm rearward closure of the core

Freiraumes, for example by a cover plate (see below). When performing the introduced in the free spaces Threaded elements with nut thread applies regardless of whether the free space is now limited by a bottom part or by a surface of the Vergussblocks, that the height of the free space and the height of the threaded elements are preferably coordinated so that the (on the floors of the Freiraumliegend) threaded elements are so high that they from the bolts of the

Screw connections can be taken easily. In the free spaces in the context of the present invention not only threaded nut having threaded elements

be included. In principle, rather, comes in too

Consider that externally threaded elements are included in the free spaces.

It is advantageous if the base leg explained above has at least one ventilation opening in areas lying outside the free spaces. Through this

Vent can escape during casting of the potting block air. In this way, the vents contribute to the possibility of the relevant for the connection of the expansion joint bridging device with the relevant building block Vergussblock particularly functional

perform. One of flaws at least largely free potting block can then be produced if the vents are large enough dimensioned that through them (at not yet hardened

Potting compound) vibrating bottles can be introduced into the space filled with the potting compound. It is particularly advantageous if the function plate has aligned ventilation openings with the ventilation openings provided in the base leg. This allows the

Production of the potting block with mounted functional plate, ie with a final configuration of the components of the Expansion joint bridging device, so that not by a subsequent, ie only after the preparation of the

Grouting block assembly of the functional plate

Tensions are introduced into the system. The advantage explained above comes into play, in particular, if, according to a further preferred development, the

Base leg through his choice of materials and / or

Dimensioning is so soft that when tightening the screw connections to the (possibly less yielding)

Clutches functional panel. In embodiments that have no base leg, it is advantageous in view of the aspects set out above, when the function panel has vents; because this allows that

Pouring the potting block without flaws in already connected to the anchor units function plate.

The vents provided in the base leg are preferably sealed to the environment (e.g., with a permanently elastic sealant) so that the surface of the potting compound in the region of the vents is not exposed to harmful environmental influences. This contributes to an increased life of the expansion joint bridging device. Are also in the

Functional plate provided corresponding vents, so these are preferred together with the

Vents of the base leg sealed. A corresponding seal is provided if at

Embodiments without base legs only the function panel has vents.

With particular advantage, according to another preferred development, the base leg comprises at least one element made of cold-drawn in the area of contact with the functional plate Section steel. This is favorable in terms of an optimal, an ideal power transmission enabling system of

Function plate on the base leg. In the interest just such an optimal situation is also advantageous if the at least one element of cold-drawn section steel is connected to at least one further element of the base leg by means of a screw connection; because in this case, unlike this example, for a

Welded connection, a distortion-free connection of the at least one element made of cold-drawn section steel element of the base leg with the at least one further element of the base leg possible, which the quality of the load-bearing connection of the function plate with the

Base leg benefits.

As has to be emphasized, a base leg, as explained in detail above, is by no means a mandatory component of the anchor structure. Rather, in the context of the present invention is quite possible that - waiving such a base leg - which typically has the passable surface

Function plate (such as finger plate) rests directly on a lid, which together with the two associated

Anchor webs (and possibly a bottom part) forms a respective free space on three (or four) sides surrounding anchor unit. Reference is made to the aspects of such an anchor unit set out above. The inventively provided screw connect in this case preferably the function plate with the covers of

associated anchor units. The functional plate is typically located directly on the covers of the anchor units.

For all the embodiments described above that applies in the respectively assigned free space

arranged threaded element particularly preferably bears laterally against at least one of the associated free space bounding anchor webs. This results in a double

Advantage in that - because of the immediate

Neighborhood of screw connections and anchor bars - especially short load paths from the screw connections in the

Anchor webs are possible and the anchor webs can also act as a positioning aid and possibly additionally as a rotation for the threaded elements. Furthermore, it is advantageous if at least one of the respective free space bounding anchor webs in its upper region to the free space to a suitable for receiving a washer

Recess has. This facilitates the assembly of

Functional plate producing the provided for fixing screw.

For introducing the threaded elements in the associated

Free space - both during the initial installation of the expansion joint bridging device and, with removal of the previously used threaded elements, in a possible later

Renewal of the functional panel - show the free spaces

suitable openings. Thus, according to a preferred embodiment of the invention, the free spaces for introduction or replacement of the threaded elements received in them from the joint gap of the expansion joint from (frontally) be accessible. According to another, particularly preferred

In the meantime, however, the free spaces - with the functional panel removed - are accessible from above for exchanging or introducing the threaded elements accommodated in them. This can be realized by way of example in that in each case the cover of the anchor unit (see above) has at least one access opening to the free space of the relevant anchor unit. Yet another preferred development of the present invention is characterized in that the bottom parts of the free spaces, ie in particular the bottom parts of the anchor units enclosing the free spaces each have a gradient of 1-10%, preferably 2-5%, wherein in the open spaces on lowest point of the bottom part one each

Drain opening opens. This ensures reliable removal of moisture (including condensate) that has entered the free space in question and counteracts corrosion of the anchor units from the inside. With the same objective, it is advantageous if the interior of the free spaces are each filled with a filling compound (for example oil, wax, fat), wherein the filling compound is preferably an anticorrosive compound in that it has an anticorrosive effect.

In the following, the present invention is based on

various illustrated in the drawing

Embodiments explained. It shows

1 shows a - transverse to the expansion joint -

Vertical section through a first embodiment of an expansion joint bridging device according to the present invention,

Fig. 2 is a parallel to the expansion joint section taken along the line II-II of FIG. 1 by one of

Anchor units

Fig. 3 shows a relation to the embodiment of the figures

1 and 2 modified second embodiment of the anchor unit in a section parallel to

expansion joint,

Fig. 4 shows a third embodiment of the anchor unit in

a section across the expansion joint,

Fig. 5 shows a fourth embodiment of the anchor unit

again in a section across the expansion joint, Fig. 6 in a section parallel to the expansion joint a

fifth embodiment of the anchor unit,

7 shows the armature unit according to FIG. 6 in a section transverse to the expansion joint, FIG.

Fig. 8 in a section parallel to the expansion joint a

sixth embodiment of the anchor unit,

Fig. 9, the anchor unit of FIG. 8 in a section transverse to the expansion joint

10 shows a seventh embodiment of the anchor unit

again in a section across the expansion joint,

11 shows a modification of the expansion joint bridging device according to FIG. 10 in a section transverse to the expansion joint, FIG.

FIG. 12 is a top plan view of the base leg of the embodiment shown in FIG. 11; FIG.

13 shows another modification of the expansion joint bridging device according to FIG. 10 in a section transverse to the expansion joint, FIG.

14 shows a further modification of the expansion joint

Bridging device according to FIGS. 1 and 2 in a section parallel to the expansion joint and

15 shows a situation during the assembly of yet another inventive expansion joint bridging device.

The in Fig. 1 - in a transverse to the extension of between a (left) shown first building body 1 and a (second right) second building structure 2 existing expansion joint 3 oriented vertical section - expansion joint bridging device 4 is the center of

Expansion joint 3 constructed symmetrically. As far as follows, the structure of the expansion joint bridging device 4 with respect to the one building body associated components is explained, this accordingly applies in a corresponding manner for the other building body assigned

Components.

The structural body 1 has adjacent to the expansion joint 3 a recess which forms a receiving space 5 for curing to a potting block potting compound. Each of the two cooperating halves of the expansion joint bridging device 4 comprises an armature structure 6 arranged in the receiving space 5. This has a plurality of longitudinally parallel to the expansion joint 3, transversely to the

Expansion joint extending plate-like anchor webs 7. With each anchor ridge 7 a bent from a round profile anchor loop 8 is welded, which is embedded in the structural body 1 associated potting block. The anchor loops 8 act with reinforcing loops 9, which in the

Structural body 1 are anchored, as well as with Armierungsstäben 10, which extend in the longitudinal direction of the expansion joint 3 and the anchor loops 8 and the reinforcing loops 9 couple, together. To this extent, the expansion joint bridging device 4 according to FIG. 1 corresponds to the well-known prior art, so that dispenses with further explanations and instead to the relevant

Publications (e.g., EP 1359254 B1). In particular, the entire content of EP 1359254 B1 is explicitly incorporated by reference into the content of the present patent application.

In the embodiment of FIG. 1, the anchor webs 7 on a plate-shaped, along the expansion joint 3rd

extending base leg 11 welded, which thus forms part of the anchor structure 6 and in turn is welded to an angle section 12, the vertical leg 13 the conclusion for the geomembrane 14 and the

Asphaltbelag 15 forms. On the base leg is running as a finger plate 16 function plate 17. The

Finger plate 16 is connected to the base leg 11 via

Screw 18 connected releasably. In each case enforce two paired threaded bolt 19 the

Functional plate 17 and the base leg 11 and act with below the base leg 11 arranged threaded elements 20, which in the present case are designed as nuts 21, together.

The threaded elements 20 are each in a clearance 22, i. a room not filled with potting compound

added. The space 22 is up through the

Base legs 11 and limited on both sides in each case by an anchor web 7. For this purpose, each screw 18 pairwise two the respective space 22 side

limiting anchor webs 7 assigned. Between the two anchor webs 7 of the respective pair extends, welded to these, a bottom part 23 and the end part 24. The bottom part 23, which limits the free space 22 down, is with a gradient of 3.5% to the expansion joint 3 out inclined. In each case, the two anchor webs 7 of each pair, the bottom part 23 and the end part 24 form a rigid anchor unit 25, in which the individual

Stiffen elements mutually. The two anchor loops 8 are at each anchor unit 25 on the outside of the two

concerned anchor webs 7 welded (see Fig. 2). Thus, the anchor units 25 are symmetrical to that through the

Axles A the two associated fittings 18th

executed and arranged. In Fig. 2 is still to

recognize that the two anchor webs 7 have such a dimensioned distance x to each other that the Free space 22 is only slightly wider than the threaded member 20, so that the latter in the sense laterally applied to at least one of the anchor webs 7, that they act as anti-rotation. If, however, a common thread element 20 having two threaded bores is provided for both screw connections 18 assigned to an anchor unit 25 in an alternative embodiment, an anti-rotation lock in the above sense can be dispensed with; The anchor webs 7, without this having adverse effects on the handling, in this case, if necessary, also have a larger, optimized to their core function towards each other distance.

An end plate 26 extends with this

welded thereto, below the base leg 11. At her are also the anchor units 25, i. their respective two

Anchor webs 7 welded frontally. The end plate has in the region of the free spaces 22 each have a recess 27, which - the replacement of the threaded elements 20th

enabling - (frontal) accessibility to the

ensures each free space 22 of the expansion joint 3 from. The recesses 27 also allow a flow of moisture which has penetrated into the free space 22 on the inclined bottom part 23 out of the free space 22. The closing plate 26 closes the casting chamber 5 during the casting of the casting block, closing the receiving space 5 for the casting compound

Formwork 28 on. In the assembled state of the expansion joint bridging device 4 extends between the two end plates 26, peripherally connected to these, in such a known manner a deformable sealing membrane 29th

The illustrated in Fig. 3 modification of the anchor structure 6 is characterized in that as anchoring elements 30 at the two anchor webs 7 permanently mounted head bolts 31st are provided. The head bolts 31 are from the two anchor webs 7 sideways to the outside. As can be seen in FIG. 3, head bolts 31 arranged one above the other can be provided in several planes. Furthermore, the anchor structure 6 according to this embodiment does not have a bottom part connecting the two anchor webs 7 with one another. The space 22 is limited here rather down through the surface 32 of the Vergussblocks 33, wherein the shape of the free space 22 by a casting of the Vergussblocks 33 between the two anchor webs. 7

defined, later removed core is defined.

Still others in the context of the present invention

usable anchor elements 30 are illustrated in Figures 4 and 5. In these embodiments, the armature webs 7 each have an opening 34 (FIG. 4) or two openings 34 (FIG. 5). The potting block forming potting compound penetrates the openings 34, so that the remaining, dipping into both sides of the potting compound structure to form a respective anchor ridge 7 firmly fixing positive engagement in the potting compound

is embedded and formed in this way integrated anchoring elements 30. Furthermore, additional anchor elements forming rods 35, the breakthroughs (possibly several anchor webs)

push through.

Figs. 6 and 7 schematically illustrate an in

On the one hand the two anchor webs 7 are designed differently by the anchor web 7.1 shown on the right - to produce a positive connection to Vergussblock - profiled at its lower edge 36 sawtooth, whereas with the Left illustrated anchor web 7.2 an anchor loop 8 is welded. Furthermore, hold the two anchor webs 7 to the axis A of the screw 18 at a different distance. The running as a nut 21 threaded member 20 is applied only to the left anchor ridge 7.2.

Figures 8 and 9 illustrate such a modification of the expansion joint bridging device 4 shown in Figures 1 and 2, in which the anchor unit 25 has a lid 37 fixedly connected to the armature webs 7. The base leg 11 is not connected directly to the anchor webs 7 in this embodiment; rather, it rests on the upper end surface 38 of the cover 37 of the anchor unit 25. The clearance 22 for the threaded elements 20 is limited in this embodiment at the top by the lid 37. As a further difference, it should be noted that here the anchor unit 25 is not permanently connected (in particular by welding) to the base leg 11. Rather, here is a (detachable) connection of the base leg 11 with the anchor units 25 via the screw 18.

Further, in the embodiment shown in Figs. 8 and 9, as illustrated in Fig. 8, the base leg 11 has portions outside of the clearances 22, i.

arranged between two adjacent anchor units 25, vent openings 43 on. These are filled after casting the grout block with a permanently elastic sealant 44, so that the potting compound is not affected by the

Vent openings 43 is exposed to environmental influences. Corresponding ventilation openings 45, which are arranged in alignment with the ventilation openings 43 provided in the base leg 11 in the functional plate 17, allow the casting blocks to be cast when functional panels are mounted 17. These vents 45 are filled with the permanently elastic sealant 44.

The illustrated in Fig. 10 modification of the expansion joint bridging device 4 according to Figures 1 and 2 is characterized in that at the anchor webs 7 two anchor loops 8 are welded. Accordingly, the anchor webs 7 are made longer than in the

Embodiment according to Figures 8 and 9; and the two screw 18 have a correspondingly greater distance from each other. By such a staggering of two anchor loops 8 in the direction transverse to the expansion joint 3, the expansion joint bridging device in the sense of higher load, as well as one for larger work areas

designed anchor structure with comparatively far

cantilevered functional plates 17 which withstands heavy loads arising during loading of the functional plate with heavy load traffic.

FIGS. 11 and 12 illustrate the possibility of allowing replacement of the threaded elements 20

Accessibility to open space 22 (instead of the

expansion joint-side front side) from above

provide. For this purpose, the base leg 11 adjacent to the respective front, expansion joint-side screw 18.1 has a recess 38 and adjacent to the respective rear, the expansion joint 3 facing away from screw 18.2 an opening 39. Corresponding recesses 40 or

Breakthroughs 41, if one is provided, are arranged in alignment in the cover 37 of the respective anchor unit 25. Furthermore, Fig. 11 shows the possibility that the threaded elements 20 of the fittings 18 receive

Free space 22 after mounting the function plate 17 with a Corrosion inhibitor 42 to fill.

According to Fig. 13 comprises, according to a modification of

Embodiment according to Figures 11 and 12, the base leg 11 two consisting of cold-drawn section steel strips 11.1 and 11.2, which are held on (not shown) spacer webs at a predetermined distance from each other, so that there is a gap 46 between them. The gap 46 is suitable for between each two anchor units

Vibrating bottle in the - filled in the recess 5,

but not yet cured - potting compound

to effect their densification. Has, as illustrated in Fig. 13, the cover 37 of the anchor unit 25 a to the gap 46 aligned, correspondingly large

dimensioned opening 47, so are through him the nuts 21 of both fittings 18 for a

Replacement accessible. If the lid 37 does not have such an opening 47, apertures of the type explained above must be provided for the accessibility of the nuts 21 in the end plate 26. In this case, on the

Outflow opening 56 are dispensed with. The existing between the strips 11.1 and 11.2 gap 46 of the base leg 11 is by means of an elastomeric sealing mat 48, which in a corresponding recess 49 of the function plate 17th

taken up and clamped on the edge side by means of the functional plate 17 against the base leg 11, against the

Protected from moisture and / or foreign objects.

FIG. 14 illustrates a modification of the expansion joint bridging device 4 shown in FIGS. 1 and 2

in that a base leg is not provided. Rather, in this embodiment, the functional plate 17 directly on the lid 37 of the anchor unit 25. through the screw 18, the function plate 17 is detachably connected directly to the anchor units 25. FIG. 14 further shows that the armature webs 7 delimiting the free space 22 have in their upper area, ie adjacent to the cover 37, in each case a recess 51 which is open towards the free space 22 and suitable for receiving an intermediate disk 50. The washer 50 is secured in position in this way, which facilitates replacement of the nut 21.

FIG. 15 illustrates the possibility of using an auxiliary traverse 52 during installation of the expansion joint bridging device, which shows the positionally correct positioning and

Alignment of the anchor units 25 when pouring the

Ensures Vergussblocks, so that the base leg 11 and the later resting on him functional plate have optimum flatness and beyond a constraint-free installation of the function plate is possible. For the fixation of the anchor units 25 and the base leg 11 at the

Auxiliary traverse 52 are those screw 18 to

Insert, by means of which later the function plate is mounted on the anchor structure 6. The shown in Fig. 15

Base leg 11 comprises a cold-drawn section steel plate 53. With this is a welded T-section 54 of the base leg 11 by means of a

Screw connection 55 connected.

For the sake of good order, it should be noted that the above - for the sake of clarity - in individual

Drawings illustrated individual technical aspects can be combined with advantage.

Claims

claims

Device for bridging an expansion joint (3) between two structural bodies (1, 2), comprising

- an anchor structure (6) provided adjacent to the expansion joint (3) on at least one of the building bodies (1, 2), which comprises several anchor webs (7) extending transversely to the expansion joint (3), in a casting block (25) of the relevant building body (1 , 2)

embedded anchor elements (30), wherein the anchor webs (7) have the anchor elements (30) or the anchor elements (30) are fixedly attached to the anchor webs (7),

- And a function plate (17) which is connected by means of a plurality of screw (18) releasably connected to the anchor structure (6),

wherein the screw connections (18) are each assigned a free space (22) for exchangeable reception of a threaded element (20) of the relevant screw connection (18),

characterized,

that at least some of the free spaces (22) are bounded laterally by two anchor webs (7).

Bridging device according to claim 1, characterized in that the two each one free space (22) limiting armature webs (7) symmetrically to the respective screw (18) are arranged and executed.

Bridging device according to claim 1 or claim 2, characterized in that as anchoring elements (30) on the respective anchor web (7) fixedly mounted Head bolt (31) or on the anchor bar concerned (7) fixedly mounted anchor loops (8) are provided.

4. Bridging device according to claim 1 or claim 2, characterized in that at least some

Anchor webs (7) each have at least one penetrated by the potting block breakthrough (34), wherein preferably additional anchor elements forming rods (35)

Enforce breakthroughs (34).

5. Bridging device according to one of claims 1 to

4, characterized in that at least one along the expansion joint (3) extending base leg (11) is provided, with which the anchor webs (7)

are connected directly or indirectly, detachably or permanently.

6. Bridging device according to one of claims 1 to

5, characterized in that the base limb (11) has at least one vent opening (43) in regions lying outside the free spaces (22).

7. Bridging device according to claim 6, characterized

in that the functional plate (17) has ventilation openings (45) aligned with the ventilation openings (43) provided in the base leg (11).

8. lock-up device according to claim 6 or claim

7, characterized in that in the

Base legs (11) provided vents (43) are sealed from the environment.

9. lock-up device according to one of claims 5 to

8, characterized in that the base leg (11) in the contact region to the functional plate (17) comprises at least one element (53) made of cold-drawn section steel.

10. lock-up device according to claim 9, characterized

in that the at least one element (53) of cold-drawn section steel is connected to at least one further element (54) of the base leg (11) by means of a screw connection (55).

11. Bridging device according to one of claims 5 to

10, characterized in that the base leg (11) by its choice of material and / or dimensioning is so soft that it is when tightening the

Screwed connections (18) to the functional plate (17) hugs.

12. Bridging device according to one of claims 5 to

11, characterized in that the free spaces (22) are delimited on their upper side in each case by a separate cover (37) on which the base limb (11) rests.

13. lock-up device according to one of claims 1 to 4, characterized in that the free spaces (22) are limited at their top by a separate cover (37) and that the function plate (17) rests on the covers (37) and by means of

Screw (18) is connected to these.

1 . Bridging device according to one of claims 1 to 13, characterized in that the threaded element (20) laterally on at least one of the associated

Free space (22) limiting anchor webs (7) is applied.

15. Bridging device according to one of claims 1 to

14, characterized in that at least one of the respective free space (22) limiting anchor webs (7) in its upper region to the free space (22) towards a for receiving an intermediate disc (50) suitable recess (51).

16. Bridging device according to one of claims 1 to

15, characterized in that the free spaces (22) for the exchange of the threaded elements received in them

(20) from the joint gap of the expansion joint (3) are accessible.

17. Bridging device according to one of claims 1 to 15, characterized in that at a distance

Functional plate (17) the free spaces (22) for the exchange of the recorded therein threaded elements (20) are accessible from above.

18. Bridging device according to one of claims 1 to

17, characterized in that the free spaces downwardly bounding bottom parts (23) have a gradient of 1-10%, preferably 2-5% and in the free spaces (22) at the lowest point of the bottom parts (23) one each

Drain opening opens.

19. Bridging device according to one of claims 1 to

18, characterized in that the interior of the

Free spaces (22) with a filling material, preferably a corrosion protection compound (42) is filled.