CN203905040U - Foundation of high voltage transmission steel pylon - Google Patents

Foundation of high voltage transmission steel pylon Download PDF

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Publication number
CN203905040U
CN203905040U CN201420284683.3U CN201420284683U CN203905040U CN 203905040 U CN203905040 U CN 203905040U CN 201420284683 U CN201420284683 U CN 201420284683U CN 203905040 U CN203905040 U CN 203905040U
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China
Prior art keywords
side stay
stay portion
foundation
basis
power transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN201420284683.3U
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Chinese (zh)
Inventor
詹世军
何内
裴忠军
崔顺心
曾武英
粟志刚
杨紫旺
姜星宇
李心强
曾健
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Yiyang Electric Power Survey And Design Institute Co Ltd
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Yiyang Electric Power Survey And Design Institute Co Ltd
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Priority to CN201420284683.3U priority Critical patent/CN203905040U/en
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Publication of CN203905040U publication Critical patent/CN203905040U/en
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Abstract

The utility model discloses a foundation of a high voltage transmission steel pylon. The foundation comprises four foundation bodies, wherein each foundation body is provided with a foundation stand column and a foundation expanded base, the four foundation bodies are distributed on the four vertexes of a rectangular frame, fan-shaped lateral supporting parts protruding out horizontally are connected to the lateral walls of the foundation bodies respectively, reinforcing ribs are arranged between the lateral supporting parts and the foundation bodies, and the lateral supporting parts are located outside the rectangular frame. The foundation of high voltage transmission steel pylon has the advantages of being simple in structure, low in construction cost, convenient to construct, high in anti-overturning performance and anti-bending-moment performance and the like.

Description

A kind of basis of high-voltage power transmission tower
Technical field
The utility model relates to high voltage power transmission technical field, is specifically related to a kind of basis of high-voltage power transmission tower.
Background technology
It is to utilize machinery or manually in natural soil, directly dig (brill) to become needed foundation ditch that steel tower is drawn the formula basis of digging, and cage of reinforcement and concrete are directly cast in to the basis forming in foundation ditch, does not need formwork, and easy construction, has good economy and the feature of environmental protection.It is the basic pattern that transmission line of electricity is conventional, is widely used in ultra-high-tension power transmission line, and geological conditions reasonable iron tower foundation in knob, mountain area uses very many, and spoir waste is few, and soil erosion amount is less, destroys little to ambient influnence.
Along with rapid development of economy, the quickening of urbanization process, land resources is all the more nervous, especially populous, in developed area and city planning area, often need to increase the trnamission capacity of unit transmission of electricity width of corridor, common practices is to adopt the power transmission mode of multiloop with tower.But can increase like this tower weight and the load of electric power pylon, also increase the load of power transmission tower digging foundation.In the time that foundation load is large or need increase principal post according to landform, can make the stressed bigger than normal of basic shaft and substrate, and general pattern draw dig formula basis anchorage and anti-bending moment force not strong, need larger concrete and rolled steel dosage to meet the demands, cause difficulty of construction to increase, construction costs is high to raise.And high voltage power transmission tower generally has the single footing of four rectangular distributions, four bases all need the concrete and the rolled steel dosage that increase, and the construction volume of whole iron tower foundation and cost are raise greatly.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiency that prior art exists, provide a kind of simple in structure, construction costs is low, the basis of easy construction, anti-overturning and the strong high-voltage power transmission tower of bending resistance square ability.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of basis of high-voltage power transmission tower, comprise that four have basic stand column and the basic main body at the expansion end, basis, described four basic main bodys are distributed on four summits of a rectangle frame, the sidewall of each basic main body is connected with the side stay portion that level is stretched out, described side stay portion is fan-shaped, and between side stay portion and basic main body, be provided with reinforcing rib, all side stays portion is positioned at the outside of described rectangle frame.
As further improvement of the utility model:
Described reinforcing rib is the gripper shoe of rectangular triangle, and a right-angle side of described gripper shoe is connected with the end face of side stay portion, and another of described gripper shoe right-angle side is connected with basic main body.
Described reinforcing rib is for being the pyramidal brace table of semicircle, and the bottom surface of described brace table is connected with the end face of side stay portion, and the side of described brace table is connected with basic main body.
The central angle scope of described fan-shaped side stay portion is 90 ° ~ 270 °.
The central angle of described fan-shaped side stay portion is 90 °, and two limits of described fan-shaped side stay portion are respectively perpendicular to two adjacent limits of rectangle frame.
The reinforced concrete structure body that described basic main body, side stay portion and reinforcing rib are formed in one.
Described reinforcing rib is positioned at the top of side stay portion.
Compared with prior art, the utility model has the advantage of:
The basis of high-voltage power transmission tower of the present utility model, be connected with at the sidewall of basic stand column the side stay portion that level is stretched out, side stay portion can make full use of the drag of side undisturbed soil, the overturning moment that offset by the level of external force transmittance process produces, can reduce moment of flexure and the eccentric stress at the expansion end, basis of basic stand column, reduce basic stand column and increase the size at value and the expansion end, basis, reach and reduce concrete and rolled steel dosage, reduce the object of construction costs; Simultaneously side stay portion is fan-shaped, and and basic main body between be provided with reinforcing rib, in the fan-shaped range covering in side stay portion, can ensure to contact with undisturbed soil is omnibearing, and reliable drag is provided, its overall structure is solid and reliable, good stress performance, and has reached the object of saving material; Owing to being connected as a single entity with four basic main bodys after building up at steel tower, steel tower entirety only can be toppled to outer rectangular frame, and the drag of overturn-preventing is mainly to be provided by the undisturbed soil of side stay subordinate side, the utility model is only in the outer setting side stay portion of rectangle frame, in the situation that overturn-preventing ability is substantially constant, greatly save reinforcing bar and concrete consumption, provide cost savings.
Brief description of the drawings
Fig. 1 is the plan structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the plan structure schematic diagram of basic main body in the utility model embodiment 1.
Fig. 3 is A-A sectional structure schematic diagram in Fig. 2.
Fig. 4 is the plan structure schematic diagram of the utility model embodiment 2.
Fig. 5 is the plan structure schematic diagram of basic main body in the utility model embodiment 2.
Fig. 6 is B-B sectional structure schematic diagram in Fig. 5.
Marginal data:
1, basic main body; 11, basic stand column; 12, the end, is expanded on basis; 2, side stay portion; 3, reinforcing rib; 4, rectangle frame.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, the basis of the utility model high-voltage power transmission tower, comprise that four have basic stand column 11 and the basic main body 1 at the expansion end 12, basis, four basic main bodys 1 are distributed on four summits of a rectangle frame 4, this rectangle frame 4 is the wire frame of a hypothesis, it is equivalent to the wire frame that four basic main body 1 central axis are in turn connected to form, the sidewall of each basic stand column 11 is connected with the side stay portion 2 that level is stretched out, side stay portion 2 is fan-shaped, and between side stay portion 2 and basic main body 1, be provided with reinforcing rib 3, all side stays portion 2 is positioned at the outside of rectangle frame 4.The basis of this high-voltage power transmission tower is after construction completes, side stay portion 2 is buried in the earth, can make full use of the drag of side undisturbed soil, the overturning moment that offset by the level of external force transmittance process produces, can reduce moment of flexure and the eccentric stress at the expansion end 12, basis of basic stand column 11, reduce basic stand column 11 and increase the size at value and the expansion end 12, basis, reach and reduce concrete and rolled steel dosage, reduce the object of construction costs; Simultaneously side stay portion 2 is fan-shaped, and and basic main body 1 between be provided with reinforcing rib 3, in the fan-shaped range covering in side stay portion 2, can ensure to contact with undisturbed soil is omnibearing, and reliable drag is provided, its overall structure is solid and reliable, good stress performance, and has reached the object of saving material.Owing to being connected as a single entity with four basic main bodys 1 after building up at steel tower, steel tower entirety only can be toppled outside rectangle frame 4, and the drag of overturn-preventing is mainly to be provided by the undisturbed soil of side stay portion 2 belows, the utility model is only in the outer setting side stay portion 2 of rectangle frame 4, in the situation that overturn-preventing ability is substantially constant, greatly save reinforcing bar and concrete consumption, provide cost savings.The radius of fan-shaped side stay portion 2 and the position (being also length and the value of the burying degree of depth) being connected on basic stand column 11 can be according to the suffered lateral force in the basis of high-voltage power transmission tower and moment calculative determinations.
As shown in Figures 2 and 3, in the present embodiment, the gripper shoe that reinforcing rib 3 is rectangular triangle, a right-angle side of gripper shoe is connected with the end face of side stay portion 2, another of gripper shoe right-angle side is connected with basic main body 1, the braced structures of triangular plate has good stiffening effect, ensures that side stay portion 2 can not be out of shape or fracture.The central angle of fan-shaped side stay portion 2 is 270 °, and its top is provided with three reinforcing ribs 3, and the top that reinforcing rib 3 is arranged on side stay portion 2 is to contact generation drag with undisturbed soil in order to make full use of side stay portion 2 lower surfaces, also makes moulding by casting convenient simultaneously.In other embodiments, reinforcing rib 3 also can be arranged on the below of side stay portion 2.The central angle size of fan-shaped side stay portion 2 is adjusted according to situations such as the arrangement form of column foot and substrate landforms, generally in the scope of 90 ° ~ 270 °.
In the present embodiment, the reinforced concrete structure body that basic main body 1, side stay portion 2 and reinforcing rib 3 are formed in one, draws and digs out after foundation ditch, arranges reinforcing bar and adopt concrete one moulding by casting in foundation ditch.
Embodiment 2:
As shown in Figures 4 to 6, the basis of the high-voltage power transmission tower of the present embodiment is substantially the same manner as Example 1, difference is, in the present embodiment, the central angle of fan-shaped side stay portion 2 is 90 °, and reinforcing rib 3 is for being the pyramidal brace table of semicircle, and this brace table is equivalent to the sloping platform around the circumference moulding crossing with side stay portion 2 of basic main body 1, the bottom surface of brace table is connected with the upper surface of side stay portion 2, and the side of brace table is connected with basic main body 1.Simultaneously, two limits of fan-shaped side stay portion 2 are respectively perpendicular to adjacent two limits (referring to Fig. 4) of rectangle frame 4, be that in 4 liang of intersection edges in a limit and rectangle frame of fan-shaped side stay portion 2 one is vertical, another in the 4 liang of intersection edges in another limit of fan-shaped side stay portion 2 and rectangle frame is vertical.Than embodiment 1, the basis of the high-voltage power transmission tower of the present embodiment has good stressed property and overturn-preventing ability equally, and its engineering consumable quantity is more saved, and construction costs is lower.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment.For those skilled in the art, do not departing from the improvement that obtains under the utility model technical conceive prerequisite and conversion also should be considered as protection domain of the present utility model.

Claims (7)

1. the basis of a high-voltage power transmission tower, comprise four basic main bodys (1) with basic stand column (11) and the basis expansion end (12), described four basic main bodys (1) are distributed on four summits of a rectangle frame (4), it is characterized in that: the sidewall of each basic main body (1) is connected with the side stay portion (2) that level is stretched out, described side stay portion (2) is fan-shaped, and between side stay portion (2) and basic main body (1), be provided with reinforcing rib (3), all side stay portions (2) are positioned at the outside of described rectangle frame (4).
2. the basis of high-voltage power transmission tower according to claim 1, it is characterized in that: the gripper shoe that described reinforcing rib (3) is rectangular triangle, a right-angle side of described gripper shoe is connected with the end face of side stay portion (2), and another of described gripper shoe right-angle side is connected with basic main body (1).
3. the basis of high-voltage power transmission tower according to claim 1, it is characterized in that: described reinforcing rib (3) is for being the pyramidal brace table of semicircle, the bottom surface of described brace table is connected with the end face of side stay portion (2), and the side of described brace table is connected with basic main body (1).
4. according to the basis of the high-voltage power transmission tower described in claim 1 or 2 or 3, it is characterized in that: the central angle scope of described fan-shaped side stay portion (2) is 90 ° ~ 270 °.
5. the basis of high-voltage power transmission tower according to claim 4, is characterized in that: the central angle of described fan-shaped side stay portion (2) is 90 °, and two limits of described fan-shaped side stay portion (2) are respectively perpendicular to two adjacent limits of rectangle frame (4).
6. according to the basis of the high-voltage power transmission tower described in claim 1 or 2 or 3, it is characterized in that: the reinforced concrete structure body that described basic main body (1), side stay portion (2) and reinforcing rib (3) are formed in one.
7. according to the basis of the high-voltage power transmission tower described in claim 1 or 2 or 3, it is characterized in that: described reinforcing rib (3) is positioned at the top of side stay portion (2).
CN201420284683.3U 2014-05-30 2014-05-30 Foundation of high voltage transmission steel pylon Expired - Lifetime CN203905040U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420284683.3U CN203905040U (en) 2014-05-30 2014-05-30 Foundation of high voltage transmission steel pylon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420284683.3U CN203905040U (en) 2014-05-30 2014-05-30 Foundation of high voltage transmission steel pylon

Publications (1)

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CN203905040U true CN203905040U (en) 2014-10-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106223356A (en) * 2016-09-21 2016-12-14 成都九十度工业产品设计有限公司 A kind of swelling column foot of Fast Installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106223356A (en) * 2016-09-21 2016-12-14 成都九十度工业产品设计有限公司 A kind of swelling column foot of Fast Installation

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Granted publication date: 20141029

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