EP1087077A1 - Process and device for lifting and/or renovation of masts - Google Patents

Abstract

The top end of a pole (30) is cut off with tie-bars (31) on it and replaced with a pinnacle (35) to which the tie-bars are already fastened. For taking down the top end, a pole structure (1) is used with a swivelling boom and is fastened on the pole but detachable. Guide cables (33) hang on the pole below a point of separation while the top end of the pole connects to the boom.

Description

The invention relates to a device for increasing and / or renovating Solid concrete and steel wall masts according to the preamble of claim 1, and to a process for increasing and / or renovating concrete and steel wall poles according to claim 7.

Stick trees are mainly used in the construction of new lattice towers for overhead lines. In the case of the cane trees used for this, there is between the short inner cane trees and the long outer-floor trees. To with such stick trees To be able to work, they have to be tilted. The tips of this Stick trees can therefore be moved on all four sides with sides and grips anchored.

German patent application 199 15 499.6 discloses a concrete mast that is renovating and / or increased and at the same time provided with new steel trusses can. Here, the costs for scaffolding can only be saved if the Conductor ropes can remain on top of the concrete mast during this work. The end of the concrete mast separated from it during the elevation and / or refurbishment with the attached Traverses can only be lowered if the traverses can be rotated or swung out for this. However, this is not possible until now, if the conductor ropes remain on top of the concrete mast, because in this case the trusses would still have to be swiveled to the height at which the end was severed the new tip will be installed later. With those in question coming short stick trees are also a hindrance to the rope anchors. On the other hand only these cane trees are suitable for the work, because only these are the masts be transported that cannot be approached by a crane. The same also applies to the assembly of the new tip, on which the steel trusses already exist are attached.

The invention is therefore based on the object of showing a device with of the work required to increase and / or refurbish existing ones Concrete masts and solid steel wall masts are carried out in such a way that the conductor cables are on remained in the upper area of the mast. Furthermore, a method is to be shown with which concrete masts and solid steel wall masts can be increased and / or renovated.

The first part of the task is solved by the features of patent claim 1.

The second part of the task is solved by the features of claim 7.

Further inventive features are characterized in the dependent claims.

The invention is explained in more detail below with the aid of schematic drawings.

Fig. 1

einen erfindungsgemäßen Stockbaum für Beton- und Stahlvollwandmaste,

Fig. 2

Montagehilfen für die Erhöhung und/oder Sanierung,

Fig. 3

eine Doppelschelle zum Verbinden des Stockbaums mit einem Betonmast,

Fig. 4

das Hochziehen des Stockbaums an einem Betonmast,

Fig. 5

die Verbindung des Stockbaums mit dem oberen Ende eines Betonmasten,

Fig. 6

das obere Ende eines Betonmastes nach dem Abtrennen,

Fig. 7

eine neue Spitze für den Betonmast,

Fig. 8

einen Stockbaum mit der neuen Spitze, über das freie Ende des Betonmasts gestülpt ist.

Show it:

Fig. 1

a stick tree according to the invention for concrete and steel wall masts,

Fig. 2

Assembly aids for the increase and / or refurbishment,

Fig. 3

a double clamp to connect the stick tree to a concrete mast,

Fig. 4

pulling up the stick on a concrete mast,

Fig. 5

connecting the stick tree to the top of a concrete pole,

Fig. 6

the top of a concrete mast after being cut off,

Fig. 7

a new tip for the concrete mast,

Fig. 8

a stick tree with the new tip, which is slipped over the free end of the concrete mast.

The stick tree 1 shown in FIG. 1 essentially consists of a steel tube 2 and a hood-shaped end piece 3, which is provided with a boom 4. The In the embodiment shown here, cane 1 can be detached from a concrete mast 30 attached, the trusses 31, which is shown in FIG. 2, are made of concrete, Damage (not shown here) and by steel cross beams (here not shown) to be replaced. In German patent application 199 15 499. 6, a concrete mast of this type is disclosed which renovates and / or lengthens and at the same time is provided with new steel trusses. For this work, the invention Stick tree 1 used. The core of the stick tree 1 is the steel tube 2. About the first, upward-facing end 2A of the steel tube 2 is the hood-shaped End piece 3 put over. The boom 4 is attached to the end piece 3 so that it is aligned perpendicular to the longitudinal axis of the steel tube 2. The free outward facing The end of the boom 4 is connected to a rod-shaped support element 5. The second end of the support element 5 is attached to the free end 3A of the end piece 3. The inner diameter of the end piece 3 is dimensioned so that it is about Longitudinal axis of the steel tube 2 can be rotated. This makes it possible to use the boom 4 to pivot at least so far that its longitudinal axis parallel to if necessary can align the longitudinal axes of the trusses 31 shown in FIG. 2. The length of the Stockbaums 1 is dimensioned so that the concrete mast 30 is renovated in this way and / or can be increased, as is described in German patent application 199 15 499. 6 is disclosed.

A climbing ladder 1S is detachably attached to it in order to climb the stick tree 1. The 1S vertical ladder is already assembled when the stick tree is assembled 1 on the floor 100. Before the stick tree 1 is fastened to the concrete mast 30, the lines 33 suspended on the insulator chains 32 of the concrete mast 30 grounded to the neighboring poles. Then, as shown in FIG. 2, a plug-in conductor 8 is detachable built on the concrete mast 30 so that it can be climbed. In a before certain distance from the underside of the trusses 31 down first two clamps 6 and 7, which form a double clamp according to FIG. 3, on the Concrete mast 30 attached. For this, the clamp 6 is detachably mounted on the concrete mast 30, such that it engages around it, while the clamp 7 is pointing horizontally outwards is attached to the clamp 6. The second end 2B of the steel pipe 2 is flattened Provide connector 2F. This is done when assembling the stick 1 suspended rotatably between the clamp 7. At a distance of 1.0 m above the clamp 6 then two further clamps 9 and 10 are also detachably mounted. The clamp 9 is attached so that it encompasses the concrete mast 30. The clamp 10 is on the Clamp 9 held so that it points horizontally outwards, so that it is is located in a region between the conductor cables 33 of the two cross members 31. The The same also applies to the clamp 7 described above also set up in an area between the conductor cables 33 of the two cross members become. In Fig. 3 the two interconnected clamps 9 and 10 in to see a top view. The clamp 9 consists of two components 9X, each have five edges 9K and 9L. These are arranged in a semicircle. there the second halves of the two opposing edges 9K are on the right Angle bent outwards so that they have flat extensions 9V. Two each Extensions 9V are joined together and with a screw 9S are connected. The inner diameter of the clamp 9 is a few centimeters larger than the outer diameter of the concrete mast 30. The between the clamp 9 and the concrete mast 30 remaining space is in some areas with 9Z hardwood components filled out. This protects the concrete mast 30 from damage. The areas the components 9Z, which face the concrete mast 30, are concave, so that they fit the concrete mast 30 very well. To assemble the clamp 9 too To simplify, the components 9Z are detachably attached to the inside of the clamp 9. If necessary, they can be exchanged for wider or narrower components 9Z depending on the size of the outer diameter of the respective concrete mast 30 is. On the two edges 9L, which are aligned parallel to the conductor cables 33 on the outside three eyelets 9H for holding the conductor cables 33 attached. The clamp 10 is composed of two semicircular components 10X. The inside diameter the clamp 10 is adapted to the outer diameter of the stick tree 1. Each component 10X has a two-dimensional extension at its two ends 10V on. Two extensions 10V joined together are over at least one screw 10S releasably connected. Two extensions put together 10V are for fastening the clamp 10 to the clamp 9 between two extensions 9V arranged. You will be screwed together with these by a 9S held together. The clamps 9 and 10 are only installed when the stick tree 1 is positioned so that its longitudinal axis is oriented vertically and the end piece 3 points upwards, so that the steel tube 2 passes through the clamp 10 can be.

As shown in FIG. 2, a large roller 11 is mounted on one of the two cross members 31. A another roller 12 is installed at the foot of the concrete mast 30, as shown in FIG. 4. The assembled stick 1 is then with its flattened connector 2F rotatably attached to the clamp 7. For this purpose, a rope 13 is a double-deck winch 4 over the two rollers 12 and 11 and with the Connection piece 2F of the floor tree 1 still lying on the floor 100 is connected. The Floor tree 1 is pulled upwards with the rope 13 until the flat end piece 2F is located between the clamp 7 and mounted with the screw 7S can be that the cane 1 to the concrete mast 30 pivoted away from this can be. Then the rope 13 with the free end of the boom 4 connected. Then the stick tree 1 is tilted upwards so that the end piece 3 faces upwards. At the free end of the boom 4, as shown in FIG. 1, therefor a tab 4L with an eyelet 4H is provided. With a second rope 15 of the double-deck winch 14, which is connected to the free end of the end piece 3, the Stick tree 1 held so far from the concrete mast 30 during erection until for the rope 13 is a sufficient angle for direct tilting into the final position of the cane 1 is reached.

As shown in FIG. 1, a tension-resistant line 17 (here only one shown) attached for the erection of the stick tree 1. The clamp 18 is is mounted at a distance of 0.30m above the clamp 9. The lines become 17 passed over the conductor ropes 33 to the floor 100. You will first when erecting used for lateral stabilization of the stick tree 1. In doing so, they are off the ground 100 made by hand by fitters. If the longitudinal axis of the stick 1 is aligned vertically, the two clamps 9 and 10 are installed as above described. The stick tree 1 is then subjected to static loads in the clamp 10 fixed. Then the second ends of the lines 17 are anchored in the floor 100. To the To not hinder work, one of the lines 17 is previously put on a clamp 19, which is installed directly above the clamp 18. Through the two lines 17 greater safety and a lower dead weight of the stick tree 1 are achieved. After the stick tree is installed, the conductor ropes 33 are disconnected and suspended on the clamp 9. This is on the sides parallel to the wire ropes For this purpose, 33 each have three eyelets 9H, as shown in FIGS. 1, 3 and 5 are shown. The conductor ropes 33 are only hung about 1.0 m lower. This means that the vertical distances to objects crossing below (not here shown) still sufficient. Costs for scaffolding and / or other measures are thus avoided.

The crossbeams 31 made of concrete, which are to be replaced, are shown in FIG. 5, suspended with a slip 20, which encompasses each cross member 31, on a fork anchor 21. As FIG. 6 shows, the fork anchor 21 is attached to the roller 22 and 23 running rope 28 hooked. The rollers 22 and 23 are on a tab 3L of the end piece or a tab 4L of the boom 4 is arranged. The upper one to be cut off The end of the concrete mast 30A becomes horizontal with a pull stroke (not shown here) intercepted. As shown in Fig. 5, the lines are at the ends of the trusses 31 25 and 26 attached and the concrete mast 30 according to the section line A-A 'horizontally cut off. The cut end 30A of the concrete mast 30 with the two cross members 31 is reduced to the vertical with the train stroke. The boom 4 will now with the help of lines 25 and 26 pivoted by 90 ° so that the longitudinal axes of the two trusses 31 run parallel to the conductor cables 33. Since the boom 4 a 0.80 m in length, the cut end 30A of the concrete mast 30 hangs with the trusses 31 in front of the conductor ropes 33 which are suspended from the eyelets 9H of the clamp 9 are. This allows the end 30A of the concrete mast 30 to open without difficulty the floor 100 are drained.

FIG. 7 shows a tip 35 with which the concrete mast 30 according to FIG. 8 is now on its upper end 30A is provided. This is made from a commercial, galvanized Made of sheet steel. It has a cross section that consists of eight edges of equal length (here not shown) is limited. The tip 35 is designed so that it the concrete mast 30 encloses envelope-like over a defined length. Because concrete poles in general are not absolutely round and straight and their diameter is not measured with millimeter accuracy can be, the tip 35 is provided with a diameter of five mm is greater than that of the concrete mast 30. The length of the section 36 with which the tip 35 overlaps the upper end 36A, is determined by the diameter of the concrete mast 30. It must be at least 1.5 times the diameter of the Has concrete mast 30 on the upper edge of the clamp 9. For example, has the concrete mast 30 there a diameter of 0.38m, the length of section 36 must be at least 0.57 m. The length of the tip 35 thus results from the length of the Area that is damaged on the concrete mast 30 and must therefore be replaced, plus the Length of the required overlap 36. In the embodiment shown here the concrete mast 30 is repaired. An additional increase in the concrete mast 30 is not provided. Because the concrete mast 30 damaged to a length of 1.0m (not shown here), results in the embodiment shown here thus a minimum length of the tip 35 of 1.00 + 0.57 = 1.57 m. Will the length section 36 for safety reasons three times the diameter preferably increased to 1.14 m, then a point 35 with a length of 2.14 m is closed use. The tip 35 is at its second, upward-facing end with two provided outward flanges 37 and 38. The height of the flanges 37 and 38 is about 0.30m. This is to be added to the length of 2.14 m, so that gives a total length of the tip 35 of about 2.44 m. The flanges 37 and 38 are arranged in a common plane perpendicular to the longitudinal axis of the cross member 31. On each flange 37, 38 is a cross member 31 made of hot-dip galvanized, coated Screwed steel sheet. The tip 35 is also designed so that the new trusses 31 after installing the tip 35 on the concrete mast 30 in the same Height as the original trusses 31 are arranged.

The tip 35 is with the assembled trusses 31 and the insulator chains 32 Using the cane 1 raised in the same way as the severed end 30A of the concrete mast 30 was previously drained, so high that it was above the Concrete mast 30 hangs. With the help of lines 25 and 26, the boom 4 is back in his original position swung back. The tip 35 is shown with that in FIG Rope 27 pulled over the roller 23 to the center of the concrete mast 30 and then with the two ropes running over the rollers 12 and 12A at the foot of the concrete mast 30 27 and 28 of the double stick winch 14 lowered until the tip 35 on the clamp 9 sits on. The trusses 31 are aligned, the tip 35 is grounded and with non-shrinking fast cement (not shown here) poured out. To the outflow To prevent the quick cement, a soft material is placed on the clamp 9. After the quick cement has hardened, the conductor cables 33 are attached to the Insulator chains 32 attached. Then the stick tree 1, the clamps 6, 9, 18 and 19, the large roller 11 and the plug-in conductor 8 removed, the grounding to the Neighboring masts removed and the line is put back into operation.

Claims (10)

Stick tree for concrete and solid steel wall masts, characterized by a steel tube (2) as the core piece, which is provided at the first end (2A) with a pivotable bracket (4) and at the second end (2B) with a flattened connection piece (2F). Stick tree according to claim 1, characterized in that a hood-shaped End piece (3) rotatably slipped over the first end (2A) of the steel tube (2) and the boom (4) attached to it perpendicular to the longitudinal axis of the steel tube (1) aligned and a rod-shaped support element (5) with the outward End of the boom (3) and the first free end of the end piece (3) is connected. Stick tree according to one of claims 1 or 2, characterized in that that a first clamp (6) is provided for the assembly of the stick tree (1), the Inner diameter adapted to the cross section of the concrete or steel wall mast (30) can be connected to this, and that on the first clamp (6) a second clamp (7) is supported on which the flattened connector (2S) of the stick tree (1) is movable towards or away from the concrete mast (30). Stick tree according to one of claims 1 to 3, characterized in that a third clamp (9) for fastening the stick tree (1) to the concrete or solid steel mast (30) is provided, which is composed of two components (9X) which both have five edges (9K and 9L) arranged in a semicircle that the second halves of the two opposite edges (9K) to form of extensions (9L) are bent outward at right angles, that each two of the extensions (9L) joined together and releasably connected to each other and on the edges (9L), which are aligned parallel to the conductor cables 33, outside eyelets (9H) for the mounting of the conductor cables 33 and that the inner diameter the clamp (9) is a few centimeters larger than the outside diameter of the concrete or Solid steel wall masts (30) and between the clamp (9) and the concrete or steel full wall masts (30) remaining space in some areas with components (9Z) Hardwood is filled, the inside of which is concave. Stick tree according to one of claims 1 to 4, characterized in that that the clamp 10 is composed of two semicircular components (10X) and their inner diameter adapted to the outer diameter of the steel tube (2) is that each component (10X) has one outward at each of its two ends directional flat extension (10V) and two adjoining extensions (10V) are releasably connected to each other that two joined Extensions (10V) for fastening the clamp (10) to the clamp (9) between two extensions (9V) arranged and detachably held together with them are, and that the steel tube (2) in the clamp (10) can be fixed. Stick tree according to one of claims 1 to 5, characterized in that that the end piece (3) is provided with two rollers (22 and 23) that a roller (22) a tab (4L) on the free end of the boom (4) and the second roller (23) on one Tab (3L) is arranged directly on the end piece (3), and that a rope (27, 28) guided over one of the rollers (22, 23) and connectable with a double deck winch (14) is. Process for raising and / or renovating a concrete mast or full steel wall mast with two traverses (31), insulator chains (32) and conductor cables (33) underneath Use of a stick tree (1) according to claim 1, characterized in that that the cane (1) on the concrete mast (30) detachably mounted, the conductor cables (33) from the insulator chains (31) and a short distance below the trusses (31) are held on the concrete mast (30), that on a boom (4) of the stick tree (1) fixed end (30A) of the concrete mast (30) in a defined Distance below the crossbeams (31) separated from the concrete mast (30) and then is lowered to the floor (100) that a made of steel on the boom (4) Tip (35) with two attached to it and provided with insulator chains (32) Trusses (31) attached, pulled up and over the end of the concrete mast (30) is turned and aligned, and that the conductor cables (33) on the insulator chains (32) be attached again and put into operation. A method according to claim 7, characterized in that on the concrete mast (30) a stepladder (8) and at a defined distance below the bottom the trusses (31) a first clamp (6) of the stick tree (1) and a first roll (11) on one of the traverses (31) and a second roller (12) at the foot of the concrete mast (30) is mounted so that on the first clamp (6) a second parallel to the conductor cables (33) aligned clamp (7) attached and a rope (13) with the second end (2B) of the Stockbaums (1) connected, guided over the first roller (11) and the second roller (12) and is connected with a double stick winch (14) that the stick tree (1) after pulled up and flattened at the second end (2B) Connection piece (2S) on the second clamp (7) of the concrete mast or solid steel wall mast (30) away or pivotally installed that a rope (13) with the Boom (4) is connected to the end piece (3) of the stick tree (1) and the stick tree (1) vertical, with the boom (4) pointing upwards, aligned and with one, with the free end of the end piece (3) connected second rope (15) of the double-stick winch (14) is held at a predeterminable distance from the concrete mast (30), a sufficient angle for the rope (13) for direct pulling into the final one Position of the stick tree (1) is reached. Method according to one of claims 7 or 8, characterized in that that a third clamp (9) of the stick tree (1) one meter above the first clamp (6) installed and the stick tree (1) static in the clamp (10) connected to it fixed resilient and also connected with two tensile ropes (17), the first Each end is attached to a clamp (18 and 19) installed below the bracket (4) and the second ends of which are anchored to the floor (100) and anchored there, that the conductor ropes (33) are then pinched out and in the eyelets (9H) of the clamp (9) be hung that the upper end (30A) of the mast (30) with the trusses (31) on attached to the boom (4) of the stick tree (1), at the ends of the cross members (31) a line (25 and 26) fixed and the concrete mast (30) at a defined distance that is cut horizontally below the underside of the crossbeams (31) the boom (4) with the help of the lines (25 and 26) pivoted through 90 ° and the end (30A) of the concrete mast (30) on the floor (100). Method according to one of claims 7 to 9, characterized in that a tip (35) made of sheet steel with two cross members (31) made of steel and insulator chains (32) pre-assembled, attached to the boom (4), pulled up and turned until the longitudinal axes of the crossbeams (31) are perpendicular to the direction of the conductor cables (33) indicate that the crossbeams (31) are then turned by rotating the boom (4) perpendicular to the conductor cables (33) that the tip (35) with a additional rope (27) and a roller (23) pulled to the center of the concrete mast (30) and then lowered with two ropes (27 and 28), slipped over the concrete mast (30) and is placed on the clamp (9), and that the trusses (31) aligned, grounded and the tip (35) is poured with shrink-free quick cement and after the Harden the same the conductor ropes (33) on the insulator chains (32) of the taverns (31) can be attached.

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