Power transmission tower and construction method thereof

Abstract

The invention relates to the technical field of electric power engineering, in particular to a power transmission tower and a construction method thereof.The power transmission tower is arranged at an old tower position, the old tower position is provided with a plurality of old tower footings, and the old tower footings are horizontally and dispersedly arranged; defining a polygon formed by connecting the centers of the old tower footings clockwise or anticlockwise by a straight line as a first polygon; the power transmission tower comprises a tower body and a plurality of tower foundations which are sequentially arranged from top to bottom, the tower foundations are horizontally and dispersedly arranged, and a polygon formed by connecting the centers of all the old tower foundations clockwise or anticlockwise through a straight line is defined as a second polygon; the second polygons and the first polygons are concentric, and all the vertexes of the first polygons and all the vertexes of the second polygons are alternately arranged at intervals, so that all the tower foundations and all the old tower foundations are horizontally staggered, the tower foundations do not need to be constructed after the old tower foundations are dismantled, the construction period of the power transmission tower is shortened, land does not need to be newly added, and land compensation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power engineering, and in particular to a transmission tower and a construction method thereof. Background Art

[0002] Transmission lines are responsible for the important task of transmitting electric energy and play a vital role in my country's energy distribution strategy. With economic development, the existing old transmission lines can no longer meet the electricity demand in today's economically developed areas, and the original lines need to be expanded and renovated.

[0003] At present, the capacity expansion and reconstruction of transmission lines generally adopts the method of demolishing the old and building the new. Figure 1 , Figure 2 As shown, the transmission tower is usually set with four tower bases, which are arranged at the four vertices of the square. When renovating the transmission tower, it is necessary to stagger the tower foundation in front of or behind the old tower base and then determine the land compensation issue. Some old towers are located in environmentally sensitive areas, and there is no suitable tower location near the old tower. The only construction plan is to first deal with the old tower base at the old tower location and then erect the tower at the old tower location. The removal of the old tower base takes a long time, which will lead to a series of problems such as an increase in construction period and long power outage time. Summary of the invention

[0004] The technical problem to be solved by the present invention is: currently, when a transmission line is renovated, for a location where a tower cannot be erected in front of or behind an old tower due to geographical conditions, the transmission tower can only be re-installed within the range of the old tower location. It is necessary to dismantle the old tower base and then erect a new tower at the old tower base. Dismantling the old tower base takes a long time, resulting in a long construction period for the transmission tower.

[0005] In order to solve the above technical problems, the object of the present invention is to provide a transmission tower, wherein the transmission tower is arranged at an old tower position, wherein the old tower position is provided with a plurality of old tower bases, and each of the old tower bases is horizontally dispersedly arranged; a polygon formed by connecting the centers of each of the old tower bases in a clockwise or counterclockwise direction with a straight line is defined as a first polygon;

[0006] The transmission tower comprises a tower body and a tower foundation arranged in sequence from top to bottom, a plurality of the tower foundations are horizontally dispersedly arranged, and a polygon formed by connecting the centers of the old tower foundations in a clockwise or counterclockwise direction with a straight line is defined as a second polygon;

[0007] The second polygon is concentric with the first polygon, and the vertices of the first polygon and the vertices of the second polygon are alternately arranged, so that the tower foundations are horizontally staggered with the old tower foundations.

[0008] As a preferred solution, a diagonal line of the second polygon is in a direction perpendicular to the direction of the transmission line.

[0009] As a preferred solution, the first polygon and the second polygon are both squares, and the lengths of the sides of the first polygon and the lengths of the sides of the second polygon are arranged at an angle of 45° in the horizontal direction.

[0010] As a preferred embodiment, the transmission tower is a wine glass-shaped transmission tower, and the tower body includes a tower head, a tower body and four tower legs arranged in sequence from top to bottom, each of the tower legs is respectively connected to the tower foundation, and the length direction of the tower head is perpendicular to the running direction of the transmission line.

[0011] As a preferred solution, the tower body includes a square tower body main body and a transition portion located at the upper part of the tower body main body, and each side length of the tower body main body is arranged parallel to each side length of the second polygon;

[0012] The adapter portion includes a plurality of support frames arranged in an inverted isosceles triangle structure, the lower vertices of each support frame are respectively connected to the corners of the tower body, and the top edges of each support frame are sequentially connected in a clockwise or counterclockwise direction; the tower head is connected to the top edges of each support frame.

[0013] As a preferred solution, both the first polygon and the second polygon are squares.

[0014] A construction method of the above-mentioned transmission tower comprises the following steps:

[0015] Construct the foundations of each tower at the location of the old tower;

[0016] Dismantle the tower of the old tower;

[0017] Construction of the transmission tower body.

[0018] As a preferred solution, the tower foundation is a concrete structure, and the solidification of the tower foundation is completed before the tower body of the old tower is dismantled.

[0019] As a preferred solution, constructing the tower body of the transmission tower includes: constructing tower legs, tower body, transition part and tower head in sequence from bottom to top.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The transmission tower of the present invention is arranged at the old tower position, and the old tower position is provided with a plurality of old tower bases, and the old tower bases are horizontally dispersed; a polygon formed by connecting the centers of the old tower bases with a straight line in a clockwise or counterclockwise direction is defined as a first polygon; the transmission tower comprises a tower body and a tower base arranged in sequence from top to bottom, and a plurality of tower bases are horizontally dispersed, and a polygon formed by connecting the centers of the old tower bases with a straight line in a clockwise or counterclockwise direction is defined as a second polygon; the second polygon is concentric with the first polygon and the vertices of the first polygon and the vertices of the second polygon are alternately arranged, so the tower bases are horizontally staggered with the old tower bases, and there is no need to construct the tower base after dismantling the old tower base, thereby shortening the construction period of the transmission tower, and no new land is required, thereby avoiding land compensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the tower foundation being moved back relative to the old tower foundation when renovating an existing transmission tower;

[0023] Figure 2 A schematic diagram of the tower foundation being moved forward relative to the old tower foundation when renovating an existing transmission tower;

[0024] Figure 3 This is a schematic diagram of the square structure of the old power tower along the transmission line;

[0025] Figure 4 for Figure 3 Left view of

[0026] Figure 5 This is an axonometric view of an old electricity tower;

[0027] Figure 6 This is a schematic diagram of the connection between the old tower head and the old tower body;

[0028] Figure 7 It is a schematic diagram of the arrangement structure of the tower foundation of the power transmission tower of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of a square transmission tower along the transmission line of the present invention;

[0030] Fig. 9 for Figure 8 Left view of

[0031] Fig.10 is an axonometric view of a transmission tower of the present invention;

[0032] Fig.11 It is a structural schematic diagram of the tower head, the transition part and the tower body;

[0033] In the figure, 100, old tower base, 101, old tower head, 102, old tower body, 103, old tower legs, 11, tower foundation, 12, tower legs, 13, tower body, 131, tower body, 132, connecting part, 1321, supporting frame, 14, tower head, 2, first polygon, 3, second polygon. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information.

[0036] like Figures 7 to 11 As shown, a preferred embodiment of the transmission tower of the present invention, the transmission tower is arranged at the old tower position, and the old tower position is provided with a plurality of old tower bases 100, and the old tower bases 100 are horizontally dispersed; a polygon formed by connecting the centers of the old tower bases 100 with a straight line in a clockwise or counterclockwise direction is defined as a first polygon 2; the transmission tower includes a tower body and a tower foundation 11 arranged in sequence from top to bottom, and the tower foundation 11 has a plurality of horizontally dispersed arrangements, and a polygon formed by connecting the centers of the old tower bases 100 with a straight line in a clockwise or counterclockwise direction is defined as a second polygon 3; the second polygon 3 is concentric with the first polygon 2, and the vertices of the first polygon 2 and the vertices of the second polygon 3 are alternately arranged, so that the tower foundations 11 are horizontally staggered with the old tower bases 100.

[0037] Therefore, it is not necessary to construct the tower foundation 11 after dismantling the old tower base 100, which shortens the construction period of the transmission tower, and does not require additional land, thus avoiding land compensation. It should be noted that the first polygon 2 and the second polygon 3 in this embodiment are virtual references introduced to facilitate the description of the arrangement of the old tower base 100 and the new tower base, and are not entities.

[0038] like Figures 3 to 6As shown, in the old power tower, the first polygon 2 is mostly a square, the length direction of one of the two adjacent sides of the first polygon 2 is parallel to the line direction of the transmission line, and the length direction of the other one is perpendicular to the line direction of the transmission line, and the length direction of the old tower head 101 is perpendicular to the line direction of the transmission line, which is convenient for hanging lines; the length direction of the old tower head 101 is arranged in parallel with one side of the first polygon 2, the cross-section of the old tower body 102 is a square, and the sides of the old tower body 102 are respectively arranged in parallel with the sides of the first polygon 2, the upper ends of the old tower legs 103 are respectively connected to the lower vertices of the old tower body 102, and the lower ends of the old tower legs 103 are respectively connected to the old tower bases 100.

[0039] In this embodiment, the transmission tower is a wine glass type transmission tower, and the tower body includes a tower head 14, a tower body 13, and four tower legs 12 arranged in sequence from top to bottom, each tower leg 12 is connected to each tower foundation 11, and the second polygon 3 is a square, and the direction of a diagonal of the second polygon 3 is perpendicular to the running direction of the transmission line, and the length direction of the tower head 14 is also perpendicular to the running direction of the transmission line. Therefore, the length direction of the tower head 14 needs to be parallel to the diagonal direction of the second polygon 3, and the length of the diagonal of the second polygon 3 is greater than the side length of the second polygon 3, so that the support strength of the tower foundation 11 in this embodiment for the tower head 14 is higher than the support strength of the old tower base 100 for the old tower head 101, and such a setting can make the structure of the transmission tower more stable.

[0040] The side length of the second polygon 3 can be greater than or less than the first polygon 2 , as long as each tower foundation 11 can be horizontally staggered with the old tower foundation 100 to avoid the construction influence of the old tower foundation 100 on the tower foundation 11 .

[0041] In this embodiment, the lengths of the sides of the first polygon 2 and the lengths of the sides of the second polygon 3 are arranged at an angle of 45° in the horizontal direction. Specifically, the second polygon 3 is equivalent to the first polygon 2 rotated 45° clockwise. This arrangement enables the transmission tower of this embodiment to be nearly overlapped with the old tower in the vertical space, reducing the installation space requirements of the tower body.

[0042] Specifically, in this embodiment, the tower body 13 includes a square tower body 131 and a transition portion 132 located at the upper part of the tower body 131, and the side lengths of the tower body 131 are respectively arranged in parallel with the side lengths of the second polygon 3; the transition portion 132 includes a plurality of support frames 1321 arranged in an inverted isosceles triangle structure, and the lower vertices of each support frame 1321 are respectively connected to the corners of the tower body 131, and the top edges of each support frame 1321 are sequentially connected in a clockwise or counterclockwise direction; the tower head 14 is connected to the top edges of each support frame 1321. The torsion part serves to connect the tower head 14 and the tower body 13. By setting the torsion part, there is no need to change the erection process of the tower head 14, nor the erection process of the tower body 13. The erection process of the tower head 14 is the same as the erection process of the old tower body 102, and the erection process of the tower head 14 is the same as the erection process of the old tower head 101. No additional training is required for the supply personnel, which facilitates the rapid construction of the transmission tower.

[0043] The transmission tower of this embodiment has a tower head 14 whose direction is consistent with that of the old transmission tower, and there is no need to change the direction of the transmission line; the tower body 13, tower legs 12 and tower foundation 11 of the transmission tower are rotated 45° relative to the old tower, and the adapter 132 connects the tower body 13 and the tower head 14.

[0044] In summary, the transmission tower of the present invention is arranged at the location of the old tower, and each tower foundation 11 of the transmission tower is horizontally staggered with each old tower base 100. There is no need to construct the tower foundation 11 after dismantling the old tower base 100, which shortens the construction period of the transmission tower and does not require additional land, thus avoiding land compensation.

[0045] The embodiment of the construction method of the transmission tower comprises the following steps:

[0046] Constructing the foundations of each tower 11 at the location of the old tower;

[0047] Dismantle the tower of the old tower;

[0048] Construction of the transmission tower body.

[0049] The tower foundation 11 is a concrete structure, and the solidification of the tower foundation 11 is completed before the tower body of the old tower is dismantled. Before the construction of the tower foundation 11 is completed, it is not necessary to dismantle the old tower foundation 100 or the tower body of the old tower. When the tower foundation 11 is constructed, the old power tower can still be used normally, and there is no need to shut down the power when constructing the tower foundation 11, which shortens the power outage time caused by the transformation of the transmission tower. After the construction of the transmission tower is completed, the old tower foundation 100 does not need to be dismantled and can be left in place.

[0050] During the construction of the transmission tower of this embodiment, the tower legs 12, the tower body 13, the adapter 132 and the tower head 14 need to be constructed in sequence from bottom to top.

[0051] The transmission tower construction method of the present invention can quickly and efficiently complete the erection of the transmission tower, shorten the power outage time, and reduce the renewal and reconstruction cost of the transmission tower.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A transmission tower, characterized in that: The transmission tower is arranged at an old tower position, and the old tower position is provided with a plurality of old tower bases (100) arranged horizontally and dispersedly, and a polygon formed by connecting the centers of the old tower bases (100) in a clockwise or counterclockwise direction with a straight line is defined as a first polygon (2); The transmission tower comprises a tower body and a plurality of tower foundations (11) arranged in sequence from top to bottom, and a second polygon (3) is defined as a polygon formed by connecting the centers of the old tower foundations (100) in a clockwise or counterclockwise direction with a straight line; The second polygon (3) and the first polygon (2) are concentric, and the vertices of the first polygon (2) and the vertices of the second polygon (3) are arranged alternately and spaced apart, so that each tower foundation (11) and each old tower base (100) are horizontally staggered.

2. The transmission tower according to claim 1, characterized in that: A diagonal line of the second polygon (3) is in a direction perpendicular to the direction of the transmission line.

3. The transmission tower according to claim 1, characterized in that: The first polygon (2) and the second polygon (3) are both regular polygons, and the lengths of the sides of the first polygon (2) and the lengths of the sides of the second polygon (3) are arranged at an angle of 45° in the horizontal direction.

4. The transmission tower according to claim 1, characterized in that: The transmission tower is a wine glass-shaped transmission tower, wherein the tower body comprises a tower head (14), a tower body (13) and four tower legs (12) arranged in sequence from top to bottom, each of the tower legs (12) is respectively connected to each of the tower foundations (11), and the length direction of the tower head (14) is perpendicular to the running direction of the transmission line.

5. The transmission tower according to claim 4, characterized in that: The tower body (13) comprises a square tower body main body (131) and a connecting portion (132) located at the upper part of the tower body main body (131), and each side length of the tower body main body (131) is arranged in parallel with each side length of the second polygon (3); The adapter (132) comprises a plurality of support frames (1321) arranged in an inverted isosceles triangle structure, the lower vertices of each support frame (1321) are respectively connected to the corners of the tower body (131), and the top edges of each support frame (1321) are sequentially connected in a clockwise or counterclockwise direction; the tower head (14) is connected to the top edge of each support frame (1321).

6. The transmission tower according to claim 1, characterized in that: The first polygon (2) and the second polygon (3) are both squares.

7. A construction method for a transmission tower according to any one of claims 1 to 6, characterized in that: The following steps are involved: Constructing the foundations of each tower at the location of the old tower (11); Dismantle the tower of the old tower; Construction of the transmission tower body.

8. The construction method of a transmission tower according to claim 7, characterized in that: The tower foundation (11) is a concrete structure, and the solidification of the tower foundation (11) is completed before the tower body of the old tower is dismantled.

9. The construction method of a transmission tower according to claim 7, characterized in that: The construction of the tower body of the power transmission tower comprises: constructing the tower legs (12), the tower body (13), the transition part (132) and the tower head (14) in sequence from bottom to top.

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