CN205804393U - A kind of UHV transmission shaft tower right cylinder bias floor basis - Google Patents
A kind of UHV transmission shaft tower right cylinder bias floor basis Download PDFInfo
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- CN205804393U CN205804393U CN201620581408.7U CN201620581408U CN205804393U CN 205804393 U CN205804393 U CN 205804393U CN 201620581408 U CN201620581408 U CN 201620581408U CN 205804393 U CN205804393 U CN 205804393U
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Abstract
This utility model UHV transmission shaft tower right cylinder bias floor basis, it includes principal post (1), it is positioned at angle steel or foundation bolt (4) that the pre-buried oblique cutting of principal post (1) enters, angle steel or foundation bolt (4) are connected with steel tower, the square foundation base plate (3) being connected with principal post (1), floor (2) it is disposed with between square foundation base plate (3) and principal post (1), principal post (1) arranged off-centre, described principal post (1) is square-section reinforced column, direction, 45 degree, shaft tower center of described principal post (1) deflection is placed, principal post eccentric distance e takes the 1/6 1/8 of square foundation baseplate width B.On the one hand this novel foundation can be effectively improved net foundation pressure distribution, reduces key dimension；On the other hand improve the transmission of base plate internal stress, reduce basic square sole plate thickness.
Description
Technical field
This utility model belongs to transmission line foundation field, is more particularly to a kind of UHV transmission shaft tower right cylinder bias rib
Plate base.
Background technology
Transmission line foundation is the important component part of transmission line of electricity, and it is by being connected with superstructure, by superstructure
Load passes to ground, in order to support the shaft tower of transmission line of electricity.Plains region or intermountain low-lying land etc. exist features as poor geologic condition,
Foundation bearing capacity is low, especially for the Li Ta position of the foundation ditch not easy-formations such as soft, stream plasticviscosity soil, silt and Extra-fine sand, logical
Frequently with pole and tower foundation pattern be sheet-pile basis and bored concrete pile foundation.The former its primary features is: sole plate plane
Size is big, buried depth is the most shallower, undertake by pulling out on steel tower by base plate two-way reinforcement, moment of flexure that downforce and horizontal force cause and
Shearing.This base form uses heavy excavation construction, and the cubic metre of earth and stone and spoir amount are big.Compared with bored concrete pile, in general weak soil
In base, sheet-pile base application is relatively broad.
The development built along with extra-high voltage grid, extra-high voltage poles and towers increases its load because of conductor cross-section, gap, distance to the ground
All being significantly increased, the load that the infrastructure thus caused undertakes increases the most therewith, by existing big plate base and extra-high
The comparing calculation of the pole and tower foundation active force on line ball road finds, the shaft tower of extra-high voltage AC circuit is conventional 500kV overhead line structures
4～5 times of basic role power, extra high voltage line shaft tower uses conventional sheet-pile basis, and sole plate and buried depth size increase therewith
Greatly, the quantities such as concrete, steel quantity consumption and cubic metre of earth and stone is all significantly increased.
Along with Environmental protection requires increasingly stricter, engineering economy and environmental requirement are the most more come by construction unit
The highest, in the area that Plain landforms or foundation bearing capacity are poor, seek a kind of resource consumption less, the novel base that environmental disruption is few
Plinth pattern becomes an important technology difficult problem in industry.
Utility model content
In place of overcoming above-mentioned the deficiencies in the prior art, this utility model provides a kind of high-voltage power transmission tower right cylinder eccentric
Floor basis.On the one hand this utility model basis can be effectively improved net foundation pressure distribution, reduces key dimension；On the other hand
Improve the transmission of base plate internal stress, reduce basic square sole plate thickness.
The purpose of this utility model is reached by following measure: UHV transmission shaft tower right cylinder bias floor base
Plinth, it is characterised in that it includes principal post, is positioned at angle steel or foundation bolt, angle steel or foundation bolt that the pre-buried oblique cutting of principal post enters
It is connected with steel tower, the square foundation base plate being connected with principal post, between square foundation base plate and principal post, it is disposed with floor, main
Post arranged off-centre, described principal post is square-section reinforced column, described principal post deflection direction, 45 degree, shaft tower center
Placing, principal post eccentric distance e takes the 1/6-1/8 of square foundation baseplate width B.
In technique scheme, buried depth H on described right cylinder bias floor basis is 3.0m-6.0m, described
The width B of square foundation base plate is 4.5m-9.5m, and described square foundation base plate thickness h is 0.25-0.8m, described principal post width
B1 is 0.8m-1.6m, and described principal post height L is 2.5-5.5m.
In technique scheme, described floor is wedge structure, connects square sole plate, while connecting main
Post；Described floor has four, is arranged in the four sides of principal post in cross-shaped vertical.
In technique scheme, described floor tip height h1 is 0-0.5m, and described floor root height h2 is 0.8-2
The thickness of times square foundation base plate 3, described floor width b is 0.6m-1.4m.
This utility model has the advantage that (1) principal post root one side with ribbing adds principal post rigidity, reduces principal post certainly
By computational length, decrease principal post materials'use amount, on the other hand, the effective dispersive stress of floor, sole plate can be improved and resist
Punching capacity.(2) floor sole plate intensity is to calculate by both sides gripper shoe so that the bending moment force arm lengths ratio that base plate calculates is soft
Property big plate base decrease 1/2, thickness can be greatly reduced, can reach save concrete purpose.(3) basis principal post is inclined
The heart, is effectively improved net foundation pressure distribution, reduces sole plate size.(4) basis principal post is to be disposed vertically, and is beneficial to construction
The convenience of mould.(5) when using tower seat board form, the principal post top planes on basis keeps level, the beneficially company of tower seat board form
Connect conveniently.(6) when pre-buried inserted angle steel, its length L1 inserting basis principal post meets the anchorage length of reinforced concrete structure
Requirement, and L1 is less than the height L of basic stand column.Inserted angle steel in the position of basic stand column end face can suitable eccentric setting, the most not
It is placed on the centre of column, tilts toward 45 ° of directions of tower center inside, its gradient and shaft tower main material inclination angle and direction one
Cause.
This utility model can effectively reduce basis evolution amount, reduces basic material usage amount, substantially increases basis
The feature of environmental protection and economy.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the structural representation on this utility model UHV transmission shaft tower right cylinder bias floor basis.
Fig. 3 is plan structure schematic diagram of the present utility model.
In figure: 1. principal post, 2. floor, 3. square foundation base plate, 4. angle steel, 5. foundation bolt；Principal post eccentric distance e is square
Sole plate width B, buried depth H on right cylinder bias floor basis, square foundation base plate thickness h, principal post width B1, principal post is high
Degree L, floor tip height h1, floor root height h2, floor width b.
Detailed description of the invention
Describe performance of the present utility model below in conjunction with the accompanying drawings in detail.But they are not intended that of the present utility model
Limit, the most for example.Simultaneously by illustrating that advantage of the present utility model will become clearer from easy to understand.
See accompanying drawing to understand: this utility model UHV transmission shaft tower right cylinder bias floor basis, it is characterised in that its bag
Include principal post 1, be positioned at angle steel that the pre-buried oblique cutting of principal post 1 enters or foundation bolt 4, angle steel or foundation bolt 4 are connected with steel tower,
The square foundation base plate 3 being connected with principal post 1, is disposed with floor 2 between square foundation base plate 3 and principal post 1, and principal post 1 is eccentric
Arranging, described principal post 1 is square-section reinforced column, and direction, 45 degree, shaft tower center of described principal post deflection is placed,
Principal post eccentric distance e takes the 1/6-1/8 of square foundation baseplate width B.Buried depth H on described right cylinder bias floor basis is
3.0m-6.0m, the width B of described square foundation base plate are 4.5m-9.5m, and described square foundation base plate 3 thickness h is 0.25-
0.8m, described principal post 1 width B1 is 0.8m-1.6m, and described principal post 1 height L is 2.5-5.5m.Described floor 2 is wedge structure,
While connecting square sole plate 3, connect principal post 1；Described floor 2 has four, is arranged in principal post 1 in cross-shaped vertical
On four sides.Described floor 2 tip height h1 is 0-0.5m, and described floor 2 root height h2 is 0.8-2 times of square foundation base plate 3
Thickness, described floor 2 width b is 0.6m-1.4m.
This utility model is for the big feature that plate base size is big, buried depth is deep of extra-high voltage routine, by base plate and master
Between post, the method for floor increases principal post rigidity, reduces principal post computational length, utilizes floor can split base plate simultaneously, reduces the end
Plate thickness and arrangement of reinforcement, consider basis ribbing scheme with basis principal post bias, propose and have studied Novel eccentric floor base
Plinth, as depicted in figs. 1 and 2.
As a example by under the same terms, anchor support (40-60 ° of degree) presses down basis comparing calculation, traditional infrastructure and bias big plate base
Plinth relative analysis is as follows:
Anchor support basic role power
| Basic role power | Nz(kN) | Px(kN) | Py(kN) |
| On pull out | 1436 | 266 | 256 |
| Under press | -1865 | 351 | 317 |
Basic technology Economic contrast
As seen from the above table, in the case of identical buried depth eccentric base concrete amount with ribbing relative to conventional big plate base coagulation
Soil amount saves about 8%, and reinforcement foundation saves about 5%, and earth volume saves about 9%.The basis of large scale base plate uses eccentric floor
Basis, can be with the cost on effectively save basis.
Other unspecified part is prior art.
Claims (4)
1. UHV transmission shaft tower right cylinder bias floor basis, it is characterised in that it includes principal post (1), is positioned at principal post (1)
Angle steel or foundation bolt (4), angle steel or foundation bolt (4) that pre-buried oblique cutting enters are connected with steel tower, are connected with principal post (1)
Square foundation base plate (3), is disposed with floor (2) between square foundation base plate (3) and principal post (1), principal post (1) arranged off-centre,
Described principal post (1) is square-section reinforced column, and direction, 45 degree, shaft tower center of described principal post (1) deflection is placed,
Principal post eccentric distance e takes the 1/6-1/8 of square foundation baseplate width B.
UHV transmission shaft tower right cylinder bias floor the most according to claim 1 basis, it is characterised in that: described right cylinder
Buried depth H on eccentric floor basis is 3.0m-6.0m, and the width B of described square foundation base plate is 4.5m-9.5m, described
Square foundation base plate thickness h is 0.25-0.8m, and described principal post width B1 is 0.8m-1.6m, and described principal post height L is 2.5-
5.5m。
UHV transmission shaft tower right cylinder bias floor the most according to claim 1 and 2 basis, it is characterised in that: described rib
Plate (2) is wedge structure, connects square sole plate (3), while connecting principal post (1)；Described floor (2) has four, in
Cross-shaped vertical is arranged in the four sides of principal post (1).
UHV transmission shaft tower right cylinder bias floor the most according to claim 3 basis, it is characterised in that: described floor point
Portion height h1 is 0-0.5m, and described floor root height h2 is the thickness of 0.8-2 times of square foundation base plate, described floor width b
For 0.6m-1.4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581408.7U CN205804393U (en) | 2016-06-13 | 2016-06-13 | A kind of UHV transmission shaft tower right cylinder bias floor basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620581408.7U CN205804393U (en) | 2016-06-13 | 2016-06-13 | A kind of UHV transmission shaft tower right cylinder bias floor basis |
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| Publication Number | Publication Date |
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| CN205804393U true CN205804393U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620581408.7U Active CN205804393U (en) | 2016-06-13 | 2016-06-13 | A kind of UHV transmission shaft tower right cylinder bias floor basis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775674A (en) * | 2022-03-28 | 2022-07-22 | 国网新疆电力有限公司经济技术研究院 | Modularized eccentric assembly type foundation |
-
2016
- 2016-06-13 CN CN201620581408.7U patent/CN205804393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775674A (en) * | 2022-03-28 | 2022-07-22 | 国网新疆电力有限公司经济技术研究院 | Modularized eccentric assembly type foundation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |