EP2966224A1 - Spreading device for a bridge rope dressing - Google Patents

Abstract

The invention relates to a spreading device for a bridge rope association 1 (suspension cable), in particular a hexagonal-shaped bridge rope association 1, consisting of two cable clamps 2 and at least one expansion clip 10, which are fixable on the bridge rope association 1. In order to release a single cable 9 from the bridge rope association, at least one expansion clip 10 is arranged between the cable clips 2, the expansion clip 10 abutting the bridge cable with at least one first expansion clip element 3 and being arranged with at least one second expansion clip element 11 spaced from the bridge cable. The second Spreizklammerelement 11 allows the use of a cable spreader 36, a cable clamp 20 and a cable attachment to extract each individual cables 9, lift off and fix.

Description

The invention relates to a spreading device for a bridge rope association (suspension cable), in particular a hexagonal bridge rope association, consisting of two cable clips and at least one expansion clip, which can be fixed on the bridge rope, and a method for spreading the rope association.

Suspension cables in the form of bridge cable assemblies are used, for example, in suspension bridges, which are required for receiving the main load capacities. Suspension bridges have at least one, preferably two pylons, over which the suspension cable is guided starting from a lateral anchorage. In this case, the total pulling force at the end of the suspension cable must be absorbed by the anchorage in the subsoil. For this purpose, the suspension cables are provided with large anchor blocks and fastened in the ground. The advantage of this design is that the roadway carrier is only slightly burdened by tensile or compressive forces and thus can be performed very easily. Such designs are referred to as real suspension bridges. The connection between the roadway carrier and bridge rope is done by so-called hangers, which are arranged vertically between the support cable and the roadway carrier and provided for receiving the tensile forces. In contrast, suspension bridges are referred to as fake suspension bridges, in which the suspension cables are fastened directly to the roadway carrier.

Due to the size of the suspension bridges, the suspension cables must be designed for high tensile loads. In today's suspension bridges, therefore, there is the need to merge several individual ropes to a bridge rope association due to the predetermined bridge length, which consists for example of 61 individual ropes. The individual ropes can hereby be spaced apart arranged to each other and require in this case a large installation volume. Preferably, the individual ropes are connected to a bridge rope association as a suspension cable, which is held together over the length by cable clamps. When using 61 individual ropes in this case a hexagonal cross section has prevailed due to the better handling.

The pylons carry the weight of the superstructure, thus the weight of the suspension cables, the trailer and the roadway carrier, as well as the occurring traffic loads from vehicles and persons who are on the bridge. In addition, they absorb the forces in the transverse direction, which are caused for example by wind. As a rule, two suspension cables (bridge cable assemblies) are used, which are guided over the pylons and anchored to the anchor blocks. On the heads of the pylons, the cables are routed over exposed or housed in saddle bearings, but may also consist of roller bearings. The hangers connect the suspension cables to the roadway beam and usually consist of hot-dip galvanized wire ropes. The hangers serve primarily to absorb the tensile forces and influence the natural frequency of the bridge. The ends of the suspension cables are secured in anchor blocks, which must be large enough and anchored deep in the ground so that they will, in any case, withstand the maximum pulling force with which the suspension cables could pull on a fully loaded, storm and snow loaded bridge , Preferably, the anchor blocks are made of reinforced concrete and can be as tall as a 16-story skyscraper. Most of the time, more than half of the anchor blocks are below the earth level.

The roadway carrier is used to distribute the loads on the trailer and is designed either as truss girder, with open solid wall girders or with a closed box cross section. In general, they are carried out from abutment to abutment through the pylons rigid, or to the Pylons interrupted and articulated there. In addition, the roadway carriers must be made sufficiently torsionally rigid, for example, in the case of high wind speeds.

To avoid the effects of the weather, the individual cables of the suspension cable are usually hot-dip galvanized and then treated with anti-corrosion paint.

As far as bridge cable bandages are used as suspension cables, they can additionally be sheathed or connected to each other by a glue oil, by which the ingress of moisture is to be prevented. Unfortunately, it has been found that, in spite of the above-mentioned measures, moisture gets between the individual ropes and this moisture is discharged along the bridge rope assembly to the lowest point. As far as the moisture can not escape from the bridge rope association, this leads to increased susceptibility to corrosion despite pretreatment of the individual ropes. Inspections of the cable-stayed associations have shown that at the lowest point very large quantities of water accumulate and lead to rust through which calls into question the carrying capacity of the bridge cable association. The control of corrosion resistance is extremely difficult due to the selected construction of a dense package of up to 61 individual ropes of a bridge rope association, because they can only be checked externally due to the tight packing of the individual ropes. Due to the known damage to suspension bridges but there is a need to carry out a regular inspection in particular of the corrosion state.

The present invention has for its object to provide a spreading device for a bridge rope association and a method for rope spreading.

According to the invention, in order to solve the problem of the device claim, it is provided that the at least one expansion clamp is arranged between the cable clamps, wherein the expansion clamp bears against the bridge cable with at least one first expansion clamp element and is arranged spaced apart from the bridge cable by at least one second expansion clamp element. Further advantageous embodiments of the spreading device can be taken from the subclaims.

In order to make a review of the individual ropes for many years in service suspension bridges, two cable clamps are used to fix the bridge rope association and preventing possible deformation spaced apart adapted to the shape of the bridge rope association allow a fix, while between the cable clamps in addition a Spreizklammer is arranged, which abuts at least with a first Spreizklammerelement on the bridge rope and is arranged with at least one second Spreizklammerelement spaced from the bridge rope. The first Spreizklammerelemente serve the shape preservation of the bridge rope association, while the second Spreizklammerelemente offer the possibility to separate a single bridge rope by spreading and to lift with suitable tools from the bridge rope association. Because the bridge cable bandage consists of 61 individual ropes, which are arranged in several layers one over the other, preferably in a hexagonal bandage, at least the two outer layers of the individual ropes must be detached from the bridge rope bandage and lifted off. Only by this measure, it is possible to gain insight into the interior of the bridge rope association to check the corrosion state of the individual ropes can.

For simplified assembly it is provided that the expansion clamp consists of three first Spreizklammerelementen and a second Spreizklammerelement. The first Spreizklammerelemente here consist of each other screw-threaded angle segments that extend over a circumference of 60 degrees. Thus, it is possible to cover by means of three first Spreizklammerelemente an angular range of 180 degrees in order to fix the Brückenseilverband and at the same time to form an abutment for the second Spreizklammerelement. The first Spreizklammerelemente have a contact surface, which comes to lie directly on the bridge rope, each extending over an angular range of approximately 60 degrees. Thus, the first Spreizklammerelemente lie positively and non-positively over an angular range of 180 degrees to the bridge rope association. The damage of individual ropes and a shift within the bridge rope association can thus be excluded, to protect the individual ropes, the contact surface may have a lead insert.

In a further embodiment of the invention it is provided that a second Spreizklammerelement consists of two Flanschanschlüssen and an arc element, wherein the sheet member is provided for receiving a cable spreader, a cable clamp and / or a cable holder. The second expansion clamp element extends over an angular range of 180 degrees and is connected directly to the first expansion clamp elements via the flange connections. The flange connections are designed in terms of their dimensions so that on the one hand a secure attachment to the first Spreizklammerelementen is possible, and on the other hand, a shift of the individual Spreizklammerelemente can be excluded.

The arch element of the second Spreizklammerelementes extends in this case spaced from the bridge rope association, so that with the help of further aids a single rope separated from the bridge rope association, can be lifted and fixed in an off-hook position. This fixation must be made successively for the individual ropes of the first layer and then for the individual ropes of the second layer, to gain insight into the interior of the bridge rope association to obtain. As far as possible, a third layer of the individual cables can also be separated, lifted off and fixed, it being possible for at least two expansion clips to be used if necessary. In this way, you can reach almost to the Mitteilpunkt the Brückenseilverbandes. To support the bridge rope association, the second Spreizklammerelement also has two contact surfaces, which extend in this particular case only over an angular range of approximately 30 degrees and are also used to support the shaping of the bridge rope association. By the two Spreizklammerelemente, namely the first and second embodiment, thus, the bridge rope bandage, which has a hexagonal shape is partially supported on three outer surfaces by the first Spreizklammerelemente completely and two other outer surfaces by the second Spreizklammerelement. After screwing the Spreizklammerelemente the first Spreizklammerelemente form an abutment, while due to the arch elements of the second Spreizklammerelementes between the arch member and the bridge rope association is a sufficient distance to perform the necessary separations of the individual ropes.

For this purpose, initially a cable spreader, which can be pressed with a wedge-shaped surface between two individual cables, in which case serves as the first abutment, the arc member, on the inside of the cable spreader is supported, and serve as a second abutment, the first Spreizklammerelemente. By the annular arrangement of the first and second Spreizklammerelemente this ensures that the pressure forces can be absorbed. After a single rope has been separated, the single rope can be picked up with a trough-shaped depression on both sides using a rope clamp and clamped after appropriate screwing. The cable clamp is further connected via a threaded rod with a support bearing, which rests in this case on the outer surface of the sheet member. This makes it possible to lift the clamped single rope from the bandage and into a position bring a sufficient distance to the bridge rope association arise. With the aid of a cable holder, this separated, lifted single rope can then be fixed within the arch element. Other individual ropes can be separated and lifted in the same way one after the other and also fixed, so that first the first outer layer of the individual ropes is lifted from the bridge rope association and subsequently the second and possibly third layer of the individual ropes. This ensures that the remaining individual cables are securely fixed by means of the first and second Spreizklammerelemente.

In an embodiment of the invention it is provided that the cable spreader rests on the inside of the sheet member with a stop surface and having a spreading element which can be positioned between the individual ropes, wherein the spreader in the direction of the bridge rope mechanically via a thread, pneumatically or possibly hydraulically movable is.

In a further embodiment of the invention it is further provided that the cable clamp with a support member on the outside of the sheet member is provided and provided by means of two jaws for receiving a single cable, the cable clamp is mechanically lifted by means of a thread, pneumatic or hydraulic of the bridge rope association.

In a further embodiment of the invention, it is provided that the cable holder consists of individual support elements which rest from the outside on the arch element and hold a webbing the individual ropes of the bridge rope association spaced from the course of the bridge rope. Several of these cable holders can in this case be arranged on the outer surface of the arch element, so that successively there is the possibility to fix the individual cables in a spaced position relative to the bridge rope association. To simplify the installation of the cable spreader, the cable clamp and the cable holder, it is provided that the arch element consists of two mutually spaced mounting plates with flange connections.

It is further provided that the support elements of the cable holder einliegen in the trough-shaped depression of the sheet member or are provided with an incision in which the outer edges of the mounting plates of the second Spreizklammerelementes einliegen.

The cable clips required for fixing the bridge rope association are constructed of six interconnected first Spreizklammerelementen, which thus lie with their contact surfaces over the entire circumference of the bridge rope association and thus stabilize the shape of the existing bridge rope.

The invention is further the object of demonstrating a method to make a rope spread in a bridge rope association can.

The method provides to carry out a rope spreading of a multiple individual ropes bridge rope association, preferably hexagonal Brückenseilverbänden using two cable clamps, which are spaced from each other used to fix the bridge rope, and at least one arranged between the cable clamps Spreizklammer, and wherein by means of a cable spreader Single rope separated from the bridge rope association and pulled out with a rope clamp from the bridge rope association and then fixed in this position.

The fact that the bridge rope association consists of several layers of individual ropes, one after the other from the outer layer in this way one after the other Separated single rope, pulled out of the bridge rope association and fixed in a relation to the bridge rope association spaced position. This fixation can be done first for the first outer layer, then for the underneath and possibly for the third underneath layer, so that an insight into the core of the bridge rope association is possible to check this for any corrosion damage.

In this case, the method provides that a plurality of individual ropes are separated from the bridge rope assembly in a subarea in succession, lifted off and fixed at a distance. Here, at least two layers of the bridge rope association, consisting of four or five layers are lifted in an angular range of 60 degrees. Following the removal of the fixed position of the single ropes, the expansion clip can be partially disassembled and offset by an angle of 60 degrees, so that the other outer surfaces can be checked in a similar manner to control in this way over the entire circumference of the bridge rope association To perform corrosion damage.

The particular advantage of the present invention is that an existing suspension bridge with a bridge rope association, for example, in the lowest point of the sagging bridge rope, a corrosion test can be subjected without the destruction or replacement of the individual ropes is required. By means of the spreading device and the method shown, it is possible to check the individual cables in a certain area, preferably at the lowest point of the sagging bridge rope, for corrosion damage. For this purpose, the individual cables are removed from the dressing by means of a spreading clamp and lifted off the dressing with a cable clamp in order to be fixed in this position. The particular advantage of this method is that during the entire inspection, the carrying capacity of the support cable or Brückenseilverbandes is maintained and after the inspection, the support cable can be merged into the old form.

The invention will be explained again with reference to an embodiment.

Fig. 1

in einer perspektivischen Ansicht einen Brückenseilverband mit einer Seilklammer,

Fig. 2

in einer perspektivischen Ansicht einen Brückenseilverband mit einer Spreizklammer und einem Seilspreizer,

Fig. 3

in einer perspektivischen Ansicht einen Brückenseilverband mit einer Spreizklammer und einer Seilklemme,

Fig. 4

in einer perspektivischen Ansicht einen Brückenseilverband mit einer Spreizklammer und mehreren Seilhalterungen,

Fig. 5

in einer perspektivischen Ansicht ein einzelnes erstes Spreizklammerelement,

Fig. 6

in einer perspektivischen Ansicht ein zweites Spreizklammerelement,

Fig. 7

in einer perspektivischen Ansicht das Spreizklammerelement gemäß Figur 6 mit Seilhalterungen,

Fig. 8

in einer perspektivischen Ansicht eine Seilklemme,

Fig. 9

in einer Draufsicht eine Seilklemme mit einliegendem Brückenseilverband,

Fig. 10

in einer Draufsicht eine Spreizklammer mit einliegendem Brückenseilverband und einem Seilspreizer,

Fig. 11

in einer Draufsicht eine Spreizklammer mit einliegendem Brückenseilverband und einer Seilklemme zum Abheben eines Einzelseiles und

Fig. 12

in einer Draufsicht den Brückenseilverband mit Spreizklammer und einer Fixierung von fünf Einzelseilen der ersten äußeren Lage.

It shows

Fig. 1

in a perspective view of a bridge rope association with a cable clamp,

Fig. 2

in a perspective view of a bridge rope association with a Spreizklammer and a cable spreader,

Fig. 3

in a perspective view of a bridge rope association with a Spreizklammer and a cable clamp,

Fig. 4

in a perspective view of a bridge rope association with a Spreizklammer and several cable holders,

Fig. 5

in a perspective view, a single first Spreizklammerelement,

Fig. 6

in a perspective view, a second Spreizklammerelement,

Fig. 7

in a perspective view of the Spreizklammerelement according to FIG. 6 with rope mounts,

Fig. 8

in a perspective view a cable clamp,

Fig. 9

in a plan view of a rope clamp with in-line bridge rope association,

Fig. 10

in a plan view a Spreizklammer with in-lying bridge rope association and a cable spreader,

Fig. 11

in a plan view of a Spreizklammer with incoming bridge rope bandage and a rope clamp for lifting a single rope and

Fig. 12

in a plan view of the bridge rope association with Spreizklammer and a fixation of five individual ropes of the first outer layer.

FIG. 1 shows in a perspective view a hexagonal Brückenseilverband 1, which forms the suspension cable of a suspension bridge. To the bridge rope bandage 1 a Sellklammer 2 is arranged, which consists of six first Spreizklammerelementen 3. The Spreizklammerelemente 3 are used both for the construction of the cable clamp 2 and the Spreizklammer FIG. 2 , The first Spreizklammerelemente 3 consist of a T-shaped center piece 4, which has beveled end faces at an angle of 30 degrees. At the end faces each connecting flanges 5, 6 are welded, which serve to rest the adjacent flanges of the next Spreizklammerelementes 3. A screw connection of the connecting flanges 5, 6 by means of bolts 7, wherein in the illustrated embodiment, a total of six bolts 7 for each flange 5, 6 are used. The dimensioning of the first Spreizklammerelemente 3, the connecting flanges 5, 6 and the bolt 7 depends on the key width of the bridge rope association first

The first Spreizklammerelemente 3 further include a contact surface 8, which come to lie in each case on an outer surface of the hexagonal Brückenseilverbandes 1. By this measure, the bridge rope association 1 is fixed by means of the cable clamp 2. This fixation is necessary because between two cable clamps 2, a Spreizklammer 10, as is known from the FIG. 2 is used is used to separate individual ropes 9 of the bridge rope association 1, to lift off the bridge rope association 1 and to fix in this position. However, this lifting of a single cable 9 should only extend to the area between two cable clamps 2 and in no case lead to the individual cable 9 being lifted off over a substantial portion of the bridge body structure 1. The contact surface 8 of the first Spreizklammerelemente 3 may be provided to avoid damage to the individual cables 9 with an elastic layer, such as Teflon.

FIG. 2 shows in a perspective view of the FIG. 1 known bridge cable bandage 1, in which case a Spreizklammer 10 has been attached to the bridge cord assembly 1. The expansion clamp 10 consists of three first Spreizklammerelementen 3 with an identical structure, as shown in the cable clamp according to FIG. 1 is known. A second Spreizklammerelement 11 extends over 180 degrees and consists of an arc member 12 and end-side connecting flanges 13, 14. The connecting flanges 13, 14 are identical to the connecting flanges 5, 6 of the first Spreizkammerelemente 3. A screwing is again via bolt 7. Similarly The first expansion chamber elements 3, the second expansion chamber 10 has a contact surface 15 which extends over only about half of a side surface of the bridge rope association 1, so that at least two outer layers of the individual ropes 9 of the bridge rope association 1 are exposed. The arch member 12 consists of two integrally manufactured mounting plates 16, 17 which are connected at right angles to the connecting flanges 13, 14, preferably welded. Between the arch member 12 and the bridge rope association 1 thus arises a free space 35, which is used for separating, lifting and fixing of individual cables 9. By means of a cable spreader 36, a single cable 9, preferably in the transition region between two side surfaces of the bridge rope association 1 are dissolved out. The cable spreader 36 consists of a wedge-shaped end piece 37, which is preferably coated with an elastomer in order to avoid damaging the individual cables 9. The end piece 37 is connected via a threaded rod 38 with an abutment 39, which is supported directly on the inner edge of the sheet member 12. The wedge-shaped end piece 37 can thus be pressed between the individual cables 9 with the aid of the threaded rod 38 or, if appropriate, corresponding hydraulics, so that a single cable 9 can be released. Using a rope clamp 20, like her out FIG. 3 is known, the individual cable 9 can be detected and lifted against the bridge rope association 1.

FIG. 3 shows in a perspective view of a bridge rope association 1, consisting of Einzeisellt 9 and a Spreizklammer 10, as they are already out FIG. 2 known. is. The expansion clamp 10 consists of first expansion clip elements 3 and a second expansion clip element 11. FIG. 2 showed the possible separation of a single rope 9, while FIG. 3 with the same arrangement of the expansion clamp 10, the inclusion of a single cable 9 with a cable clamp 20 shows. The cable clamp 20 consists of two jaws 21, 22, a threaded rod 23 and an abutment 24. By means of bolts 25, the single cable 9 is held between the jaws 21, 22, wherein the jaws 21, 22 have a trough-shaped recess 26 for this purpose. The abutment 24 consists of a support member 29 with lateral guides 27. Through the support member 29 projects the threaded rod 23. About a nut 28, the distance between the cable clamp 20 and abutment 24 can be changed so that a single cable 9 from the bridge rope association 1 in the direction of the Bow element 12 can be lifted.

FIG. 4 shows in a perspective view of the already known bridge rope association 1 with the individual cables 9 and the expansion clamp 10. The structure of the expansion clip 10 corresponds to the previous description according to FIG. 2 and 3 , In this figure, the fixation of the individual cables 9 is shown, below the arch element 12 via a webbing 30 which is placed around the single rope 9 and is held by a support member 31. The support elements 31 abut on the outer periphery 32 of the mounting plates 16, 17, and distributed over an angular range of up to 180 degrees. The support elements 31 are each end equipped with an incision 33, 34, in which the edge surface of the mounting plates 16, 17 einliegen. In this way it is prevented that the support elements 31 can slip laterally. From this figure it can be further seen that already five individual ropes 9 were positioned by means of the straps 30 in a raised position of the bridge rope association 1. After removing the outer layer of the single-line parts 9, the next layer of the individual cables 9 can be lifted in a further operation, again with a cable spreader 36, a cable clamp 20 and subsequent fixation by means of a webbing 30th

FIG. 5 shows in a perspective view of a first Spreizklammerelement 3 with a T-shaped center piece 4, which has a 30-degree bevel on the end faces, and two connecting flanges 5, 6. The connecting flanges 5, 6 are provided with individual holes 40, respectively six pieces in number, equipped. Six of these first Spreizklammerelemente 3 can be used to build a cable clamp, so that the cable clamp can rest over 360 degrees to the bridge rope association. The plant takes place in this case with a contact surface 8, which comes to rest on the individual surfaces of the hexagonal Brückenseilverbandes.

FIG. 6 shows in a perspective view of a second Spreizklammerelement 11 with two connecting flanges 13,14, which are provided via holes 40 for screwing to the first Spreizklammerelementen 3. About an arcuate element 12 creates a space between the recorded bridge rope association and the bow member 12 so that the individual ropes of the bridge rope association can be removed using a cable spreader and lifted by a rope clamp of the bridge rope association. Similar to the first expansion clamp elements 3, the second expansion clamp element 11 also has a contact surface 15 which, in this case, bears against only one half of the side surface of the bridge rope structure. Thus, it is possible to withdraw the individual ropes of the bridge rope association successively. The curved element 12 consists of two spaced mounting plates 16, 17, which are connected at right angles to the connecting flanges 13, 14, preferably welded. Thus, either a threaded rod or a corresponding hydraulic system can be guided between the connecting flanges 13, 14 in order to use both the cable spreader and the cable clamp and subsequently to fix the individual cables in a lifted state with the aid of a strap by means of a supporting element.

FIG. 7 shows in a perspective view, the second Spreizklammerelement 11, as already out FIG. 6 can be seen, in which case individual support members 31 are arranged distributed over the outer circumference of the sheet member 12.

FIG. 8 shows in a perspective view a cable clamp 20, which consists of two jaws 21, 22. The inner surfaces 42, 43 of the jaws 21, 22 each have a trough-shaped recess 26, so that a single cable at least partially enclosed and after tightening the bolt 44 between the two jaws 21, 22 can be clamped. About an unillustrated threaded rod or hydraulic can follow the Rope clamp 20 are moved away from the bridge rope assembly to release a single rope.

FIG. 9 shows in a plan view a bridge cable bandage 1, consisting of individual cables 9, namely 61 pieces. To this bridge cable bandage 1, a cable clamps 2 is arranged, which consists of first Spreizklammerelementen 3. Six first Spreizklammerelemente 3 form the cable clamp 2 and are connected by connecting flanges 5, 6 with the help of bolts 7 Thus, due to the existing geometry of the bridge rope association 1 using the contact surfaces 8 of the bridge cord assembly fixed in terms of its shape. Two of these cable clamps 2 are spaced apart attached to the bridge cable bandage 1, so that between the cable clamps 2 a Spreizklammer can be arranged to extract single ropes 9 from the bridge rope association 1.

FIG. 10 shows the bridge cable bandage 1, consisting of the individual cables 9. In this case, a Spreizklammer 10 is arranged around the bridge cord assembly 1, which consists of three first Spreizklammerelementen 3 and a second Spreizklammerelement 11 with an arc element 12. The arcuate element 12 creates the free space 35, in which individual cables 9 can first be separated by means of the cable spreader 36 and lifted off with the aid of a cable clamp 20 and fixed by means of a cable holder.

FIG. 11 shows in a plan view of the bridge cord assembly 1, consisting of the individual cables 9 with expansion clamp 10. At the bow member 12 a cable clamp 20 is arranged in this case, which rests with an abutment 24 on the peripheral surface of the mounting plates 16, 17. About a threaded rod 23 and a nut 28 can be lifted with the cable clamp 20 a single cable 9.

FIG. 12 shows a top view of the bridge cable bandage 1 with its individual cables 9 and a Spreizklammer 10, wherein a total of five individual ropes 9 by means of a webbing 30 spaced from the bridge rope association 1 by means of support members 31 are fixed to the sheet member 12. FIG. 12 shows the removal of the first layer of individual cables 9, which can be followed by the removal of the second layer of individual cables 9. To remove the second layer of individual cables 9, the same expansion clip 10 can also be used in this case. Alternatively, it is possible to use a second expansion clip 10 next to the first expansion clip 10, in order to thus hold the second layer or possibly the third layer, starting from the outer surface of the hexagonal bridge cord assembly 1 of individual cables 9. For fixing the remaining bridge rope association 1, the first expansion clip elements 3 have a contact surface 8 and the second expansion clip element 11 has a contact surface 15.

LIST OF REFERENCE NUMBERS

1

Bridge Cable Association

2

cable clip

3

Spreizklammerelement

4

centerpiece

5

flange

6

flange

7

bolts

8th

contact surface

9

Single rope

10

expansion clamp

11

Spreizklammerelement

12

arch element

13

flange

14

flange

15

contact surface

16

mounting plate

17

mounting plate

20

Seilklemme

21

jaw

22

jaw

23

threaded rod

24

abutment

25

bolts

26

deepening

27

guide

28

mother

29

support element

30

webbing

31

support element

32

outer periphery

33

incision

34

incision

35

free space

36

rope spreader

37

tail

38

threaded rod

39

abutment

40

drilling

42

palm

43

palm

44

bolts

Claims (15)

Spreading device for a bridge rope bandage (1) (suspension cable), in particular a hexagonal bridge rope bandage (1), consisting of two rope clips (2) and at least one expansion clip (10), which can be fixed on the bridge rope bandage (1),
characterized,
in that the at least one expansion clamp (10) is arranged between the cable clamps (2), wherein the expansion clamp (10) bears against the bridge cable with at least one first expansion clamp element (3) and is arranged at a distance from the bridge cable with at least one second expansion clamp element (11). Spreading device according to claim 1,
characterized,
in that the expansion clamp (10) consists of three first expansion clamp elements (3) and a second expansion clamp element (11). Spreading device according to claim 1 or 2,
characterized,
in that the first expansion clamp elements (3) consist of angle segments which can be screwed together and which extend over a circumference of each 60 degrees and each have two connecting flanges (5, 6). Spreading device according to one of claims 1, 2 or 3,
characterized,
in that the first expansion clip elements (3) have a contact surface (8) on the bridge cable which extends over an angular range of approximately 60 degrees and / or that the second expansion clip element (11) consists of two connecting flanges (13, 14) and an arch element (12 ), wherein the arch element (12) is provided for receiving a cable spreader (36), a cable clamp (20) and / or a cable holder. Spreading device according to one of claims 1 to 5,
characterized,
that the second Spreizklammerelement (11) extends over an angular range of 180 degrees. Spreading device according to one of claims 1 to 6,
characterized,
in that the second expansion clip elements (11) are provided with two contact surfaces (15) for the bridge cable, each extending over approximately 30 degrees. Spreading device according to one of claims 1 to 7,
characterized,
in that the cable spreader (36) rests on the inside of the arch element (12) with a contact surface and has an expander element which can be positioned between the individual cables (9), the spreader element being able to move mechanically in the direction of the bridge cable via a thread, pneumatically or hydraulically is. Spreading device according to one of claims 1 to 8,
characterized,
in that the cable clamp (20) can be fixed on the outside of the arch element (12) by means of a support element (31) and is provided by means of two clamping jaws (21, 22) for receiving a single cable (9), the cable clamp (20) being mechanically operated by means of a Thread, pneumatically or hydraulically from the bridge rope association (1) can be lifted. Spreading device according to one of claims 1 to 9,
characterized,
that the cable holder consists of individual support elements (31), which from the outside on the sheet member (12) of the second Spreizklammerelemente (11) rest and via a webbing (30) holding the individual cables (9) of the bridge rope association (1) spaced from the course of the bridge rope. Spreading device according to one of claims 1 to 10,
characterized,
in that the curved element (12) consists of two mutually spaced mounting plates (16, 17) with connecting flanges (13, 14). Spreading device according to one of claims 1 to 11,
characterized,
in that the support elements (31) of the cable support are located in trough-shaped depressions of the arch element (12) or are provided with an incision (33, 34) in which the outer edges of the mounting plates (16, 17) are in, and / or in that the cable clamp (20 ) consists of six interconnected first Spreizklammerelementen. Method for the cable spreading of a bridge cable assembly (1) consisting of several individual cables (9), preferably hexagonal bridge cable assemblies (1),
characterized by the use of two cable clamps (2), which are spaced from each other used to fix the bridge rope, and between the cable clamps (2) arranged Spreizklammer (10), wherein by means of a cable spreader (36) a single cable (9) the bridge cable bandage (1) and separated with a rope clamp (20) pulled out of the bridge rope association (1) and then fixed in this position. Method according to claim 13,
characterized,
that a plurality of individual ropes (9) are separated from the bridge rope association (1) in a diaper area of 60 degrees one after the other, lifted off and fixed at a distance. Method according to claim 13 or 14,
characterized,
that at least two layers of the bridge rope association (1), consisting of four or five layers are lifted in an angular range of 60 degrees. A method according to claim 13, 14 or 15,
characterized,
that the expansion clamp (10) is rotated by 60 degrees to control the bridge rope association (1) and then the individual ropes (9) separated from this 60 degree angle segment, lifted and spaced fixed.

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