EP1359254B1 - Device for bridging expansion joints in constructions - Google Patents

Description

The invention relates to a device for bridging expansion joints on structures, in particular road and bridge structures, as described in the preamble of claim 1.

From the EP 1 033 442 A1 is a device for bridging expansion joints with a by a gegengleiche staggered arrangement of finger plates with overlapping fingers - the same applicant - known, the finger plates are interchangeable mounted anchored in the structures anchor profiles, in particular screwed, are. By acting on these devices high loads it inevitably leads to damage to the finger plates, as well as to the fasteners. An exchange of damaged parts is difficult in the known design, since the anchorage in the building accessibility to the fasteners is compromised with tools. Therefore, many times, if there is a need to replace the finger plates or fasteners, a high repair and cost must be operated because the substructure must be completely or partially removed, which also longer-term traffic obstructions in such measures.

According to another, known from the prior art solution finger plates and substructure are provided on cantilevered brackets for better accessibility, allowing the use of long screws that protrude through the consoles, and wherein the nuts are freely accessible at the bottom of the console , In this solution, the requirement for good accessibility for replacement is achieved, but with considerable disadvantages are to be accepted. The production of the consoles, as well as the extra long screws, very expensive. Furthermore, an enormously increased space requirement is required, which leads to a wider and cost-intensive design of the abutment for the structure of the bridges. Moreover, this increases the distance between the bridge bearings and the transition structure. This in turn leads to a restriction of the use of the finger plates as a result of the structure deflection resulting from the traffic, since each structural deflection leads to an outgrowth of the fingertips in the road surface and thus to loss of comfort when driving over and increased wear on the chassis, in particular the tires of road users, leads.

Another problem arises with the use of a finger transition construction Bridges on when porous asphalt layers are used as road surfaces. The surface water entering the porous asphalt layers should be allowed to drain at the structural end to prevent frost damage. In many cases, frost damage occurs particularly quickly, at locations where the compaction of the asphalt layers during installation is made more difficult by the immediately adjacent road surface transition. There are already various solutions which solve the problem in which immediately before the road junction, a drainage pipe is arranged, which has slots in the direction of the asphalt layer. The disadvantage of this design is that the drainage pipe can not be cleaned and loses its function after some time due to contamination. Furthermore, this design requires a complex, wider version of the connecting flange of the bridge seal on the roadway crossing. The removal of water in Schrordbordbereich is problematic because there usually are no further drainage pipes. The problem is to be solved in so far as the substructure is provided over the entire roadway width at short intervals with longitudinally lying in the longitudinal direction of the structure directly below the cover grooves or channels, which are open to the adjacent asphalt layer and the bridge gap. The water emerging from the asphalt layer is introduced into the drainage path of the transition together with the surface water penetrating between the finger plates and removed. The drainage grooves can be cleaned from the bridge gap at any time and freed of the function disturbing dirt.

In addition, in the bridging of expansion joints a problem is known which occurs in the inspection, maintenance and cleaning of roadway construction in finger construction. The constructions are equipped in the area of the bridge gap with drainage paths, which are mechanically connected to the substructure. The components of the roadway crossing that are visible from the outside must be inspected at regular intervals for damage or malfunction by inspection. This is made more difficult because the drainage paths are usually made of elastomer, but at least of light-tight material and so the review can only be done by means of artificial lighting. The degree of contamination of the drainage channels is not visible from the bottom, so the control must be made from the top, which is a hindrance to the traffic by a partial closure of the passability is given. This is to be remedied insofar as a material for the drainage of translucent, elastic material, such as transparent soft PVC sheets, is used. As a result, the components of the roadway constructions in this area are better controllable and the degree of contamination of the drainage paths and thus the need for Cleaning better assessable.

Another problem with the finger construction for bridging expansion joints occurs when little space is available in the longitudinal direction of the structure. In most cases, the available bridge gap is indeed large enough to accommodate the movements of the structure, but too small to accommodate freely cantilevered finger plates, whereby the rehabilitation and re-equipment of such constructions with finger plates is difficult. A reconstruction of the structure and the abutment is usually associated with very high costs. One solution, on the other hand, is finger plates, which are arranged in such a way that, as with lying fingers, the fingers are partly in operation, depending on the structural extent, over the opposite substructure. The fingers are to be designed so that the overlapping part is thinner and thus comes into contact with the opposite substructure, with a corresponding design of the finger bottom is no static impairment, since they can be formed conically according to the occurring voltage curve to the tip anyway.

Another not inconsiderable problem with the design of such finger constructions is the corrosion-resistant design which can be achieved with coatings or coatings, wherein it must be taken into account that such coatings or coatings must not have a negative permanent influence on the prestressing of the fastening means. If such an impairment occurs due to shrinkage of the coatings or coatings and is therefore a decrease in the biasing force of the screw connection, this can lead to premature failure of the screw connection due to fatigue fractures. This problem can be solved by optionally dispensing with a coating in substructures of the construction and / or finger plates and, instead, sealing by filling the joints between the finger plates and the adjacent components with plastic grout which sets to a permanently elastic state becomes. The filling of the joints takes place after the installation of the finger plates and the fastening process by tightening the screw connections. In this case, no sealant can get between finger plates and steel substructure and so will maintain the predetermined preload force of the screw connection. On the side facing the bridge gap, a seal between the finger plates and the substructure is difficult because access from below through the drainage path is denied. One solution is the milling of grooves parallel to the bridge gap in the finger plates or substructure, which in turn can absorb elastic sealants. This solution causes because of the required mechanical Processing high costs. Furthermore, there is a risk if the amount of introduced sealant is too large that this penetrates between finger plates and substructure and affects the bias of the screws.

A solution for this is given insofar as on the upper edge of lying in the bridge gap front side of the substructure by means of a profile made of elastic material up to the substructure open and small channel is made. This takes on the plastic grout, which hardens to a permanently elastic state. This mass is introduced in excess and pressed in the course of mounting the finger plates against them, which sets the desired sealing effect. If a larger amount than intended is introduced into the channel, it increases its volume by deformation and prevents excess material from being pressed between the plates and the substructure. Since the elastic profile has a function only until the curing of the sealant - similar to a lost formwork - it can be attached to the substructure by means of a cost-effective assembly bonding.

Of course, the problem of "corrosion" can also be overcome by the use of corrosion resistant materials, e.g. stainless steel, which, however, higher material and processing costs incurred.

The object of the invention is to provide a device for bridging expansion joints on buildings, with the cost of maintenance and replacement of parts of the device is low.

This object of the invention is achieved by the reproduced in the characterizing part of claim 1 features. The surprising advantage of this is that the dimensions of the device for bridging expansion joints can be minimized by the arrangement of a positioning means for the fastening means of the screw, as are used for attaching the finger plates tools only from the freely accessible top of the device and thus both the Erstbestückung as well as a subsequent replacement of damaged finger plates is simplified, since the fastener is assigned after insertion into the guide arrangement forming a positioning accurately positioned the mounting screw, whereby the assembly is much easier and the amount of time is reduced.

Also possible is an embodiment according to claim 2, whereby the minimized.

A further advantageous embodiment describes claim 3, because a high deformation resistance is achieved for a deformation-free recording of the resulting torque when tightening the fastener.

However, an advantage according to claim 4, because it allows the use of extended fastening screws, which have an increased strain, so that the biasing force of the screw is maintained even with alternating load, whereby fatigue fractures of the mounting screws are avoided.

But it is also possible training according to claim 5, whereby a very simple and inexpensive production is achieved.

The advantageous embodiments as described in claims 6 to 8, ensure both a simple initial assembly, as well as the accessibility for the replacement of the fasteners a simplified maintenance and / or repair costs.

According to claims 9 and 10, an exact guide for positioning the fastener, as well as the required anti-rotation, is achieved for applying the tightening torque.

According to the advantageous developments as described in claims 11 to 13, variants for the formation of the receiving means and also the anchor profiles for adaptation to given space conditions, whereby subsequent retrofitting of devices for bridging expansion joints are possible arise.

A further advantageous embodiment for the simplified production of a guide arrangement for the fastening means on the anchor profile is characterized claim 14.

According to the advantageous development as described in claim 15, internal elements are effectively protected against the penetration of aggressive surface waters and can, provided that the required strength is achieved, interrupted welds are used.

The advantageous embodiments according to claims 16 to 18 ensure a modular design of the device, which is thus easily adaptable to the structural requirements

However, the embodiments as described in claims 19 to 21 are also advantageous, whereby standard lengths can be produced to achieve a total length of the device predetermined by the roadway width and, if appropriate, only end areas with special lengths are to be supplemented. Further, any repairs or replacements to renewal devices that only affect subregions require only a partial blockage of roadways for traffic, thereby reducing obstruction in traffic handling.

According to the advantageous embodiment as described in claim 22, high anchoring forces and simplified assembly are achieved.

Further advantageous embodiments also describe the claims 23 to 26, which in the expansion joint area and area of the connection point to the road surface a permanent and reliable discharge of surface and leachate is given and simplified conditions are achieved for a current inspection and maintenance.

Finally, the claims 27 to 28 describe advantageous embodiments of the overall design of such a bridging device to meet the requirements for wear, corrosion, and thus the requirements for the highest possible functional period.

For a better understanding of the invention, this will be explained in more detail by the embodiments shown in the figures.

Fig. 1

eine erfindungsgemäße Vorrichtung zum Überbrücken von Dehnungsfugen;

Fig. 2

die Vorrichtung geschnitten gemäß den Linien II-II in Fig. 1;

Fig. 3

ein Teilbereich der erfindungsgemäßen Vorrichtung in Stirnansicht, teilweise geschnitten;

Fig. 4

die erfindungsgemäße Vorrichtung in Draufsicht;

Fig. 5

eine andere Ausbildung der erfindungsgemäßen Vorrichtung, geschnitten;

Fig. 6

eine weitere Ausbildung der erfindungsgemäßen Vorrichtung in Draufsicht;

Fig. 7

die Vorrichtung geschnitten gemäß den Linien VII-VII in Fig. 6.

Show it:

Fig. 1

an inventive device for bridging expansion joints;

Fig. 2

the device cut according to the lines II-II in Fig. 1 ;

Fig. 3

a portion of the device according to the invention in front view, partially cut;

Fig. 4

the device according to the invention in plan view;

Fig. 5

another embodiment of the device according to the invention, cut;

Fig. 6

a further embodiment of the device according to the invention in plan view;

Fig. 7

the device cut according to the lines VII-VII in Fig. 6 ,

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position. Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.

In the Fig. 1 is a device 1 for bridging expansion joints 2 in the course of a roadway 3, in particular between an abutment 4, a supporting structure 5 of a bridge 6 shown.

This device 1 consists of in the structure 5 of the bridge and in the abutment 4 in the direction of the extension of the expansion joint 2 arranged anchor profiles 7, on which finger plates 8 with counter-interlocking finger assemblies 9, the expansion joint 2 overlapping, are attached.

In the Fig. 2 to 4 Now the device 1 and the attachment of the finger plates 8 on the anchor profiles 7 is shown in detail. As can be seen, the detachable connection of the finger plates 8 by means of screw 10, formed by fastening screws 11, which with a screw shaft 12, the finger plate 8 and a base leg 13 of the anchor profiles 7 in breakthrough 14 and enforce by fastening means 15, in particular hex nuts 16, under the base leg 13th

The anchor profiles 7 extend on both sides of the expansion joint 2 and are in the opposite end of the buildings, in particular the abutment 4 and the structure 5, over a width 17 of the buildings extending embedded embedded in concrete and often performed in interconnected partial lengths. They are supported by the base leg 13 which is recessed by a thickness 18 of the finger plates 8 relative to a surface 19 of a road surface 20, in particular a flat steel which runs parallel to the surface 19 and a connecting angle 21 for the road surface 20 and an opposite end faces 22 the abutment 4 and the supporting structure 5 vertically extending web plate 23 is formed. The anchor profiles 7 formed from the base leg 13, the connection bracket 21 and the web plate 23 are created in welded construction. Furthermore, in the direction of the width 17 spaced parallel to each other and at right angles to the web plate 23 with a bottom 24 of the base leg and the connection bracket 21 welded transverse webs 25 are provided for stiffening to which anchoring brackets 26 are welded in particular of reinforcing steel, on the one hand for positioning the Anchor profiles 7 in a reinforcing grid 27 of the structures before casting a mounting receptacle 28 with a concrete filling 29 and the anchorage serve in total in this concrete filling 29.

Positioning means 30, which form a guide arrangement 31 for the hexagonal nuts 16, are arranged on the underside 24 of the base legs 13. According to preferred embodiments, these positioning means 30 consist of a U-profile 32 which is provided with legs 33, 34 on the underside 24 of the base leg 13, e.g. are welded by stitching seams and extend with a longitudinal extent to the web plates 23 vertically and project through this in a recess 35. At an opposite end region, the U-profile 32 is connected to a vertically extending leg 36 of the connecting bracket 21 by welding.

The positioning means 30 are arranged symmetrically extending in the region of the openings 14 for the fastening screws 11 and to the apertures 14 with respect to a longitudinal central axis 37. To form the guide arrangement 31 for the hexagonal nuts 16, an inner width 38 of the U-profile 32 is slightly larger than a wrench size 39 of the hexagon nut 16. A leg height 40 of the U-profile 32 is greater than a nut height 41, plus any protrusion of the fastening screw 11. One end opening 42 of the U-profile 32 in the region of the web plate 23 is preferably closed with a plug-in plastic plug 43, whereby the penetration of contaminants, moisture concrete etc. is effectively prevented in the positioning means 30.

The assembly of the finger plates 8 is now carried out in the at least one hex nut 16 in the positioning means 30 and positioned with respect to the opening 14. After placing the finger plate 8 on an upper surface 44 of the base leg 13, the fastening screw 11 is inserted into the apertures 14 and screwed to the hexagon nut 16, which is given by the trained guide assembly 31 of the positioning means 30 a reliable rotation upon application of the intended torque for the screw 10 and accessibility to a counter tool is not required. This also allows a later loosening of the screw 10 for replacing the fasteners 15 and to replace the finger plate 8. It should also be mentioned that screw heads 45 in a recess 46 of the finger plate 8 and thus a top 47 of the finger plate 8 not submerged in outstanding the finger plate 8 are arranged. It should also be mentioned that, in a specific embodiment, the screw connections 10 for fastening the finger plates 8 in an individual arrangement are provided alternately with a pairwise arrangement in the direction of the longitudinal extension of the anchor profile 7.

For positioning of the hexagonal nuts 16 in the guide assembly 31 of the positioning means 30 is provided according to a preferred embodiment as a mounting aid an arrangement in which in paired screw 10 two of the hexagonal nuts 16 in a formed by a center distance 48 of the screw 10 distance 49 on a carrier strip 50th , For example, made of thin sheet, by gluing, latching, etc., are fixed and thus can be introduced into the positioning means 30 in a simplified manner and positionally accurate so the apertures 14 are assigned. This allows a very quick installation, since the position of the hexagonal nuts 16 are assigned exactly to the hole pattern and thus the fastening screws 11. During the fastening operation, the carrier strip 50, which is expediently provided without a bore, is released from the hexagon nuts 16 by the passage of the fastening screws 11 through the hexagonal nuts 16 and can be removed from the positioning means 30 or remain in this. It should also be mentioned that even with a single screw connection 10, the use of the carrier strip 50 for positioning the hexagonal nut 16 in the positioning means 30 can of course be possible and expedient.

A likewise possible embodiment is to provide the carrier strip 50 in the region of the screw passage with a bore and to secure the hexagon nut 16 on its underside, e.g. In this case, the carrier strip 50, in particular if it is made of hard material, take over the function of a supplement to the pressure distribution.

In the Fig. 5 a further variant of the device 1 is shown. In this case, the positioning means 30 for the hexagonal nuts 16 of the screw connections 10 is preferably formed by a forming tube 51 which is arranged parallel to the underside 24 of the base leg 13 and at a distance 52 thereto. In order to achieve the distance 52, the bores 14 for the fastening screws 11 are provided, for example, between the underside 24 of the base leg 13 and the positioning means 30 coaxially comprising pipe sections 53. These are welded to the base leg 13 and the forming tube 51.

Such a design, in which the hexagon nuts 16 receiving positioning means 30 is disposed from the base leg 13 at the distance 52, allows the use of longer fastening screws 11, whereby a higher strain is achieved and thus the alternating loads occurring by the on the device. 1 Rolling traffic occur, cause no drop in the biasing force of the screw. This would result in a reduction in the fatigue strength of the fastening screws 11 and thus fatigue fractures, which can be effectively avoided by these measures.

In the 6 and 7 another embodiment of the device 1 for fixing the finger plates 8 on the anchor profile 7 is shown. According to this embodiment, on the underside 24 of the base leg 13 of the armature profile 7, a forming tube section 54 extending vertically to the underside 24 is arranged with a height 55 which is welded in a front end region 56 to the base leg 13 and in an opposite front end region 57 with a cover plate 58 is provided. In this case, the positioning means 30 is achieved, which forms a box-like cavity and the guide arrangement 31 for the hexagonal nut 16 and shields against the concrete filling 29.

In the base leg 13 of the armature profile 7, a recess 59 is arranged, which is formed from a bore 60 and an adjoining slot 61. The bore 60 has a diameter 62 which is slightly larger than a Eckmaß 63 of the hex nut 16. A slot width 64 of the elongated hole 61 is slightly larger than a diameter 65 of Fixing screws 11. Symmetrical to a longitudinal central axis 66 of the recess 59, the forming tube section 54 is arranged, which has an inner width 67 which is slightly larger than the key width 39 of the hex nut 16. Thus, longitudinal side walls 68, 69 of the forming tube section 59, the guide assembly 31 and thus the rotation for the hex nuts 16 when applying the tightening torque to the screw 10. An inner distance 70 between transverse side walls 71 is slightly larger than twice the corner measure 63 of the hex nut 16th

As shown now in dotted lines, the hexagonal nut 16 is inserted in the region of the bore 60 of the recess 59 in the positioning means 30 and moved in the direction of the elongated hole 61 in a matching with the opening 14 in the finger plate 8 position for mounting. In this position, now the fastening screws 11 can be screwed to the hex nut 16 and thus the finger plate 8 on the base leg 13 and thus connected to the anchor profile 7.

According to an advantageous embodiment, it is provided to arrange the longitudinal central axis 66 of the recess 59 at an angle to the direction of the longitudinal extension of the anchor profile 7. An angle 72 is smaller or larger than 90 °. Such an arrangement is advantageous for the paired arrangement of the screw 10, since a center distance of the screw 10 can be kept smaller.

How further the Fig. 7 but also the Fig. 2 and 5 can be seen in the expansion joint 2 a discharge channel 73 for surface and leachate provided which is preferably formed of a channel-shaped laid, transparent plastic sheet 74 which is attached via anchoring means 75 to the web plates 23 and with a derivative of the water in the longitudinal direction Device 1 takes place. In order to detect and dissipate also in the connection area in the road surface infiltrating surface water drainage slots 76 are provided in the leg 36 of the connection bracket 21 and the web plate 23 spaced in the longitudinal direction, which are fluidly connected via extending on the bottom 24 of the base leg 13 channels 77 and thus a leachate - according to arrow 78 - the discharge channel 73 is supplied. A corresponding disposal of the partly aggressive waters is for reasons of corrosion protection and thus for the duration of the device 1 of particular decision. Furthermore, for these reasons, the device 1 may also be provided, at least in regions, with a coating 79, for example a corrosion-resistant plastic or the like.

Like now further the Fig. 1 can be seen, preferably a total length 80 of the device 1, which results in the width 17 for the structures, formed from several sections of the anchor profiles 7 with a length 81. The length 81 is suitably adapted to a grid division of the screw 10 whereby a modular design and a partial series production is achieved. Furthermore, the length 81 will preferably be less than or equal to half the width 17 of the building. To produce the overall length 80, the anchor profiles 7 in end regions 82 connecting flanges 83 for screw 84 for attachment.

Also preferably, the length 81 of the anchor profiles 7 is an integer multiple of a measured in the direction of the longitudinal extension of the device 1 width 85 of the finger plate 8 i. in order to obtain the required overall length 80 of the device 1, a plurality of finger plates 8 are fastened to the anchor profiles 7.

Thus, if necessary, special lengths are required only in the peripheral areas, which can be easily produced and assembled by shortening series parts. An advantage of this design also results in the repair and, if necessary, replacement of parts of the device 1 in the only partially required barrier for traffic.

It should also be mentioned that the device 1 for bridging expansion joints 2 can of course be applied to steel bridges and / or steel abutment constructions in the design according to the invention and compared to the known solutions has a significantly reduced space requirements, whereby this also for the renovation existing expansion joints - bridging devices can be used.

For the sake of order, it should finally be pointed out that, for better understanding of the structure of the device 1, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.

REFERENCE NUMBERS

1

contraption

2

expansion

3

roadway

4

abutment

5

Structure

6

bridge

7

anchor profile

8th

finger plate

9

finger assembly

10

screw

11

fixing screw

12

screw shaft

13

base leg

14

breakthrough

15

fastener

16

Hex nut

17

width

18

thickness

19

surface

20

roadbed

21

connection angle

22

face

23

web plate

24

bottom

25

crosspiece

26

anchor bracket

27

probation grid

28

mounting seat

29

concrete filling

30

positioning

31

guide assembly

32

U-profile

33

leg

34

leg

35

recess

36

leg

37

Longitudinal central axis

38

width

39

Key-width

40

leg height

41

nut height

42

opening

43

Plastic plugs

44

top

45

screw head

46

deepening

47

top

48

center distance

49

distance

50

carrier strip

51

forming tube

52

distance

53

pipe section

54

Shaped tube section

55

height

56

end region

57

end region

58

cover sheet

59

recess

60

drilling

61

Long hole

62

diameter

63

Across corners

64

slot width

65

diameter

66

Longitudinal central axis

67

width

68

Longitudinal side walls

69

Longitudinal side walls

70

distance

71

Transverse side wall

72

angle

73

Ableitungsgerinne

74

Plastic sheet

75

anchoring means

76

drainage slot

77

channel

78

arrow

79

coating

80

overall length

81

length

82

end

83

connecting flange

84

screw

85

width

Claims (28)

1. Device (1) for bridging expansion joints (2) between construction bodies with anchoring sections (7) in oppositely lying end regions (82) of the construction bodies, and with finger plates (8) with mutually meshing complementary finger arrangements (9) bridging the expansion joint (2) releasably affixed thereon by screw connections (10), and with orifices (14) for fixing screws (11) disposed in a base leg (13) of the anchoring section (7), the orifices (14) being provided with stationary positioning means (30) on a bottom face (24) of the base leg (13) for accommodating fixing means (15) so that they are not able to turn, characterised in that the fixing means (15), preferably a hexagon nut (16), is mounted in a guide arrangement (31) formed by the positioning means (30) and guided laterally and vertically relative to the base leg (13) and the orifice (14).
2. Device as claimed in claim 1, characterised in that positioning means (30) for the hexagon nut (16) disposed on the bottom face (24) of the anchoring section (7) are provided in the form of a shaped tube portion (54), in particular a rectangular shaped tube.
3. Device as claimed in claim 1 or 2, characterised in that the shaped tube portion (54) is secured to the base leg (13) extending perpendicular to the bottom face (24) in a terminal end region (56) of longitudinal side walls (68, 69) and transverse side walls (71).
4. Device as claimed in claim 1 or 2, characterised in that the shaped tube portion (51, 54) is disposed parallel with and at a distance (49) from the bottom face (24).
5. Device as claimed in claim 1, characterised in that the positioning means (30) is provided in the form of a U-section (32), which is secured to the bottom face (24) of the base leg (13) by legs (33, 34), in particular is welded thereto.
6. Device as claimed in claim 1, characterised in that a cut-out (59) comprising a bore (60) and an adjoining slot (61) is provided in the base leg (13) of the anchoring section (7).
7. Device as claimed in claim 6, characterised in that a diameter (62) of the bore (60) is slightly bigger than a width (63) across corners of the hexagon nut (16).
8. Device as claimed in claim 6, characterised in that a slot width (64) of the slot (61) is slightly bigger than a diameter (65) of the fixing screw (11).
9. Device as claimed in claim 6, characterised in that a length of the slot (61) adjoining the bore (60) corresponds to approximately the width (63) across corners of the hexagon nut (16).
10. Device as claimed in claim 1, characterised in that a clearance width (67) of the positioning means (30) is slightly bigger than a key width (39) of the hexagon nut (16).
11. Device as claimed in claim 1, characterised in that a clearance height (55) of the positioning means (30) is bigger than a nut height.
12. Device as claimed in claim 1, characterised in that a longitudinal mid-axis (66) of the positioning means (30) extends perpendicular to the direction of longitudinal extension of the anchoring section (7).
13. Device as claimed in claim 1, characterised in that the longitudinal mid-axis (66) of the positioning means (30) extends at an angle with respect to the direction of longitudinal extension of the anchoring section (7).
14. Device as claimed in claim 1, characterised in that mutually parallel L-sections are provided on the bottom face (24) of the base leg (13) forming a guide passage for the hexagon nuts (16).
15. Device as claimed in claim 1, characterised in that points connecting the positioning means (30) to the base leg (13) or to a connecting bracket (21) are sealed, in particular with a permanently elastic sealing agent.
16. Device as claimed in claim 1, characterised in that the anchoring section (7) is essentially provided in the form of an angle section comprising flat steel pieces in the direction of the longitudinal extension welded to one another at a right angle forming the base leg (13) and a web plate (23).
17. Device as claimed in claim 16, characterised in that the web plate (23) forms a shuttering screen extending in the longitudinal direction of the expansion joint (2) for a mount (28).
18. Device as claimed in claim 1 or 15, characterised in that the base leg (13) is connected to a leg of the connecting bracket (21) extending at a right angle to it, in particular is welded thereto.
19. Device as claimed in claim 1, characterised in that the anchoring sections (7) disposed at oppositely lying end regions of the construction in the direction of longitudinal extension of the expansion joint (2) are of a length (81) and the finger plates (8) secured to them are of a width (85) which is smaller than a width (17) of the construction or a total length (80) of the device (1).
20. Device as claimed in claim 1, characterised in that the anchoring section (7) is provided with connecting flanges (83) at end regions (82).
21. Device as claimed in claim 19, characterised in that several anchoring sections (7) extending across the width (17) of the construction are connected to one another by means of the connecting flanges (83) so that they are not able to move.
22. Device as claimed in one or more of the preceding claims, characterised in that anchoring brackets (26) are fixedly disposed on the anchoring section (7).
23. Device as claimed in one or more of the preceding claims, characterised in that drainage slots (76) are provided in a leg (36) of the connecting bracket (21) and/or a web plate (23) of the anchoring section (7) spaced apart in the direction of the length (81).
24. Device as claimed in claim 23, characterised in that the drainage slots (76) are provided with passages (77) in the construction establishing a flow connection to the expansion joint (2) and a drainage gutter (73) disposed in the direction of longitudinal extension of the expansion joint (2).
25. Device as claimed in claim 24, characterised in that anchoring means (75) for the drainage gutter (73) are provided in the web plates (23).
26. Device as claimed in claim 24 or 25, characterised in that the drainage gutter (73) is provided in the form of a transparent plastic web (74).
27. Device as claimed in one or more of the preceding claims, characterised in that the anchoring section (7) and/or finger plates (8) are preferably provided with an anti-corrosion coating (79) in at least certain regions.
28. Device as claimed in one or more of the preceding claims, characterised in that the anchoring sections (7) and/or finger plates (8) are made from a corrosion-resistant material, e.g. stainless steel.

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