A transmission tower foot that is easy to replace after rusting and a replacement method thereof

Abstract

The present invention relates to a tower foot of a power transmission tower which is convenient to replace after being corroded, comprising a main angle steel of the power transmission tower, an oblique angle steel and a tower foot structure arranged at the bottom of the main angle steel, the tower foot structure comprising a tower foot bottom plate and a tower foot main boot plate structure arranged on the tower foot bottom plate, the main angle steel and the upper part of the tower foot main boot plate structure, the oblique angle steel and the side of the tower foot main boot plate structure are connected via a plurality of connecting bolts, a plurality of anchor bolts for fixing the tower foot structure to the ground foundation are arranged on the tower foot bottom plate, a concrete protective cap is arranged on the outside of the anchor bolt to wrap up the lower part of the tower foot structure located below the oblique angle steel. The present invention has a simple structure, an ingenious design and is easy to use, and reduces the corrosion of the main angle steel and the oblique angle steel through reasonable arrangement, thereby avoiding replacement, and at the same time, the tower foot main boot plate structure is connected to the main angle steel and the oblique angle steel via connecting bolts, and the connection is close to the ground foundation, so replacement and maintenance are very convenient.

Description

Technical Field

[0001] The invention relates to a transmission iron tower foot which is convenient to replace after being corroded and a replacement method thereof. Background Art

[0002] The foot bolts of transmission towers are usually protected from corrosion by wrapping concrete. The concrete block wrapping the foot is called a protective cap. In recent years, during the inspection of the tower, it is often found that the main material of the tower at the junction with the upper surface of the concrete protective cap is seriously rusted because the main angle steel and diagonal angle steel of the transmission tower are in contact with and wrapped in the concrete protective cap. If slight rust occurs, the rusted part is usually derusted and painted with anti-rust paint; when the rust thickness exceeds 10% of the total thickness, the component needs to be replaced. The diagonal material of the tower is easy to replace because of its short length, but the main angle steel is long and connected to multiple diagonal angle steels, so it is difficult to replace. Summary of the invention

[0003] The present invention improves the above-mentioned problem, that is, the technical problem to be solved by the present invention is to provide a transmission tower foot that is easy to replace after rusting and a replacement method thereof, which has an ingenious structure and is easy to use, so as to facilitate the replacement of rusted parts and reduce the possibility of rusting of the main material angle steel.

[0004] The present invention is constructed as follows: it includes a main angle steel, an oblique angle steel and a tower foot structure arranged at the bottom of the main angle steel of a transmission tower; the tower foot structure includes a tower foot bottom plate and a tower foot main boot plate structure arranged on the tower foot bottom plate; the main angle steel and the upper part of the tower foot main boot plate structure, and the oblique angle steel and the side part of the tower foot main boot plate structure are connected via a plurality of connecting bolts; a plurality of anchor bolts for fixing the tower foot structure to a ground foundation are arranged on the tower foot bottom plate; a concrete protective cap is arranged on the outside of the anchor bolt for wrapping the lower part of the tower foot structure below the oblique angle steel.

[0005] Furthermore, the tower foot main boot plate structure includes a tower foot main boot plate A and a tower foot main boot plate B arranged on the left side of the front part of the tower foot main boot plate A, and a tower foot secondary boot plate is arranged on the right side of the front part of the tower foot main boot plate A.

[0006] Furthermore, tower foot ribs B are provided at the front and rear of the left side of the tower foot main boot plate B.

[0007] Furthermore, tower foot ribs A are provided on both sides of the rear of the tower foot main boot plate A.

[0008] Furthermore, there is a certain distance between the main angle steel and the concrete protection cap.

[0009] Furthermore, a method for replacing the foot of a transmission tower that is easy to replace after being corroded comprises the following steps: (1) using a supporting device to prop up the main angle steel at the foot of the transmission tower that needs to be replaced, and transferring the load such as the weight of the tower to the supporting device; (2) removing the concrete protective cap that wraps the tower foot bottom plate and the anchor bolts; (3) unscrewing and removing the nuts on the anchor bolts, unscrewing and removing the connecting bolts between the tower foot main boot plate structure and the main angle steel and the diagonal angle steel, thereby removing the old tower foot main boot plate structure; (4) removing the rusted tower foot and replacing it with a new tower foot; (5) reconnecting the new tower foot main boot plate structure with the main angle steel and the diagonal angle steel using connecting bolts; (6) tightening the nuts of the anchor bolts 7, and connecting the new tower foot structure to the ground foundation through the anchor bolts; and (7) supporting the formwork and pouring to form a new concrete protective cap.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the device has a simple structure and a reasonable design. By arranging the connection between the main material angle steel and the main shoe plate structure of the tower foot, and the connection between the oblique material angle steel and the main shoe plate structure of the tower foot outside the concrete protective cap, with this solution, rust is most likely to occur on the main shoe plate structure of the tower foot. At the same time, the main shoe plate structure of the tower foot and the main material angle steel and the oblique material angle steel are connected with connecting bolts and are located near the ground, which is convenient for disassembly, maintenance and replacement of the tower foot of the transmission tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a vertical view of an embodiment of the present invention;

[0012] Figure 2 It is a plan view of the tower foot structure of an embodiment of the present invention;

[0013] In the figure: 1-main material angle steel; 2-tower foot bottom plate; 3-tower foot main boot plate structure; 31-tower foot main boot plate A, 32-tower foot main boot plate B, 4-tower foot secondary boot plate; 5-tower foot rib plate B; 6-oblique material angle steel; 7-anchor bolt; 8-connecting bolt; 9-concrete protection cap, 10-tower foot rib plate A. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Example: Figure 1~2As shown, in this embodiment, a transmission tower foot that is easy to replace after rusting is provided, including a main material angle steel 1 of the transmission tower, an oblique material angle steel 6 and a tower foot structure arranged at the lower part of the main material angle steel, the tower foot structure includes a tower foot bottom plate 2 and a tower foot main boot plate structure 3 arranged on the tower foot bottom plate, the main material angle steel and the upper part of the tower foot main boot plate structure, and the oblique material angle steel and the side part of the tower foot main boot plate structure are connected by multiple connecting bolts 8, a plurality of anchor bolts 7 for fixing the tower foot structure to the ground foundation are arranged on the tower foot bottom plate, and a concrete protective cap 9 is arranged on the outside of the anchor bolt to wrap the lower part of the tower foot structure below the oblique material angle steel.

[0016] With this structure, corrosion is most likely to occur on the main boot plate structure at the tower foot.

[0017] The connection between the above-mentioned main material angle steel and the main boot plate structure of the tower foot, and the connection between the diagonal material angle steel and the main boot plate structure of the tower foot are located outside the concrete protective cap, and the tower foot bottom plate, anchor bolts, tower foot rib A, tower foot rib B, the lower part of the tower foot main boot plate structure, and the lower part of the tower foot secondary boot plate are located inside the concrete protective cap.

[0018] In this embodiment, the tower foot main boot plate structure 3 includes a tower foot main boot plate A31 and a tower foot main boot plate B32 arranged on the left side of the front part of the tower foot main boot plate A, and a tower foot secondary boot plate 4 is arranged on the right side of the front part of the tower foot main boot plate A.

[0019] In this embodiment, tower foot ribs B5 are provided at the front and rear of the left side of the tower foot main shoe plate B.

[0020] In this embodiment, tower foot ribs A10 are provided on both sides of the rear portion of the tower foot main boot plate A.

[0021] In this embodiment, there is a certain distance between the main angle steel and the concrete protection cap.

[0022] The above-mentioned tower foot main boot plate A, tower foot main boot plate B, tower foot rib plate A, tower foot rib plate B, and tower foot secondary boot plate are respectively connected to the tower foot bottom plate via horizontal welds, and the tower foot main boot plate A and the tower foot main boot plate B, the tower foot main boot plate A and the tower foot secondary boot plate, the tower foot main boot plate A and the tower foot main boot plate A, and the tower foot main boot plate B and the tower foot rib plate B are connected via vertical welds.

[0023] The materials of the tower foot main boot plate structure, tower foot bottom plate, oblique angle steel, and main angle steel are all steel, and the material of the concrete protective cap is concrete.

[0024] In this embodiment, when replacing the rusted tower foot:

[0025] (1) Use a supporting device to prop up the main angle steel 1 at the foot of the transmission tower to be replaced, and transfer the tower's gravity and other loads to the supporting device;

[0026] (2) Remove the concrete protective cap 9 covering the tower foot plate and the anchor bolts;

[0027] (3) Unscrew and remove the nut on the anchor bolt 7, unscrew and remove the connecting bolt 8 between the tower foot main boot plate structure 3 and the main material angle steel 1 and the diagonal material angle steel 6, and thus remove the old tower foot main boot plate structure;

[0028] (4) Remove the rusted tower feet and replace them with new ones;

[0029] (5) Reconnect the new tower foot main boot plate structure 3 with the main material angle steel 1 and the diagonal material angle steel 6 using connecting bolts 8;

[0030] (6) Tighten the nut of the anchor bolt 7 to connect the new tower foot structure to the ground foundation through the anchor bolt;

[0031] (7) Supporting the formwork and pouring to form a new concrete protective cap 9.

[0032] Unless otherwise stated, any technical solution disclosed in the present invention disclosed above, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range, and any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many implementable numerical values. Since there are too many numerical values ​​to be exhaustive, the present invention discloses some numerical values ​​to illustrate the technical solution of the present invention, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the present invention.

[0033] At the same time, if the above-mentioned invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an integrated molding process).

[0034] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the present invention include states or shapes that are approximate, similar, or close to them.

[0035] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A transmission tower foot that is easy to replace after rusting, characterized in that: The transmission tower comprises a main angle steel, an oblique angle steel and a tower foot structure arranged at the bottom of the main angle steel, wherein the tower foot structure comprises a tower foot bottom plate and a tower foot main boot plate structure arranged on the tower foot bottom plate, wherein the main angle steel and the upper part of the tower foot main boot plate structure, and the oblique angle steel and the side part of the tower foot main boot plate structure are connected via a plurality of connecting bolts, and the tower foot bottom plate is provided with a plurality of anchor bolts for fixing the tower foot structure to the ground foundation, and the anchor bolts are provided with concrete protective caps on the outside to wrap up the lower part of the tower foot structure located below the oblique angle steel; The connection between the main angle steel and the main boot plate structure of the tower foot, and the connection between the oblique angle steel and the main boot plate structure of the tower foot are located outside the concrete protective cap.

2. The transmission tower foot that is easy to replace after rusting according to claim 1, characterized in that: The tower foot main boot plate structure comprises a tower foot main boot plate A and a tower foot main boot plate B arranged on the left side of the front part of the tower foot main boot plate A, and a tower foot secondary boot plate is arranged on the right side of the front part of the tower foot main boot plate A.

3. The transmission tower foot that is easy to replace after rusting according to claim 2 is characterized in that: Tower foot ribs B are provided at the front and rear of the left side of the tower foot main boot plate B.

4. The transmission tower foot that is easy to replace after rusting according to claim 2 is characterized in that: Tower foot ribs A are provided on both sides of the rear of the tower foot main boot plate A.

5. The transmission tower foot that is easy to replace after rusting according to claim 1, characterized in that: There is a gap between the main angle steel and the concrete protection cap.

6. A method for replacing a transmission tower foot that is easy to replace after rusting according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: (1) using a supporting device to prop up the main angle steel at the foot of the transmission tower to be replaced, and transferring the load such as the weight of the tower to the supporting device; (2) removing the concrete protective cap covering the tower foot bottom plate and the anchor bolts; (3) unscrewing and removing the nuts on the anchor bolts, unscrewing and removing the connecting bolts between the main shoe plate structure of the tower foot and the main angle steel and the diagonal angle steel, thereby removing the old main shoe plate structure of the tower foot; (4) removing the rusted tower foot and replacing it with a new tower foot; (5) reconnecting the new tower foot main shoe plate structure with the main angle steel and the diagonal angle steel using connecting bolts; (6) tightening the nuts of the anchor bolts, and connecting the new tower foot structure to the ground foundation through the anchor bolts; and (7) supporting the formwork and pouring to form a new concrete protective cap.

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