CN206887987U - A kind of power transmission tower group's anchor cable - Google Patents
A kind of power transmission tower group's anchor cable Download PDFInfo
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- CN206887987U CN206887987U CN201720730960.2U CN201720730960U CN206887987U CN 206887987 U CN206887987 U CN 206887987U CN 201720730960 U CN201720730960 U CN 201720730960U CN 206887987 U CN206887987 U CN 206887987U
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- gusset piece
- hole
- transmission tower
- strand wires
- power transmission
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- 238000010276 construction Methods 0.000 description 12
- 238000009412 basement excavation Methods 0.000 description 7
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- 230000006378 damage Effects 0.000 description 3
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- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a kind of power transmission tower group's anchor cable, including upper carrying billet and some prestress anchorage cables, the prestress anchorage cable includes steel strand wires, upper gusset piece, second line of a couplet fishplate bar and pretension spring, the upper end of the steel strand wires is fixed with upper carrying billet, the lower end of the steel strand wires is connected with upper gusset piece, the pretension spring is arranged between gusset piece and second line of a couplet fishplate bar, collapsible and expansion flexible anchor assemblies are provided between the upper gusset piece and second line of a couplet fishplate bar, the flexible anchor assemblies are in its natural state by pretension spring effect and outside adjacent circumferential expansion.The utility model can make top transmission tower have preferably resistance live load loading capability.
Description
Technical field
The utility model belongs to technology of transmission of electricity, and in particular to power transmission tower basis.
Background technology
At present, in the thicker area of coating, mainly using traditional transmission line foundation, such as " heavy excavation ", " draw digging
The basis such as base expanding and base expanding ", " bored concrete pile ", but these traditional infrastructures are all defective, heavy excavation foundation excavation area is big, takes up an area more；Draw
The construction for digging basis is relatively difficult；The cost of bored concrete pile foundation is higher.
Traditional infrastructure under ground portion space-consuming is larger, when the space-consuming to basic under ground portion has higher constraint
During condition, due to the limitation of computation model, the area of the big plate in underground is often larger, is easily unsatisfactory for application bar for conventional mat foundation
Part；And though bored concrete pile foundation floor space is much smaller, for the area that environmental requirement is higher or communications and transportation is inconvenient, using filling
When noting pile foundation, due to the limitation of construction technology, it there are certain requirements for place and traffic condition, often due to can not be fine
Solution and cause environmental pollution.
Traditional infrastructure relies primarily on basic entirety to resist uplift force, lower pressure and horizontal force, but resists a certain control lotus
Often the part of traditional infrastructure and do not stressed or stress is smaller during load, cause the waste of material, increase foundation cost so that tradition
The cost on basis is higher.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of power transmission tower group's anchor cable, easy for construction, and energy
Make power transmission tower that there is preferably resistance live load loading capability.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of power transmission tower group's anchor cable, including
Upper carrying billet and some prestress anchorage cables, the prestress anchorage cable include steel strand wires, upper gusset piece, second line of a couplet fishplate bar and
Pretension spring, the upper end of the steel strand wires are fixed with upper carrying billet, and the lower end of the steel strand wires is connected with upper gusset piece,
The pretension spring is arranged between gusset piece and second line of a couplet fishplate bar, and being provided between the upper gusset piece and second line of a couplet fishplate bar to receive
Contracting and the flexible anchor assemblies of expansion, the flexible anchor assemblies outwards expand by pretension spring effect and circumferentially in its natural state
.
Further, the flexible anchor assemblies include one end of upper connecting rod and lower link, the upper connecting rod and lower link
Hinged, the other end of the upper connecting rod is hinged with upper gusset piece, and the other end and the lower linking plate of the lower link are hinged.
Further, the flexible anchor assemblies are provided with four groups and along the circumferential uniform of upper gusset piece and second line of a couplet fishplate bar.
Further, first through hole is provided with the upper carrying billet, the top of the upper carrying billet is provided with
Fixed disk, the fixed disk are provided with the second through hole, and the steel strand wires are passed through and fixed from first through hole and the second through hole.
Further, second through hole is reverse frustoconic, is provided with second through hole and clamps the split type of steel strand wires
Templin chuck.
The utility model is after adopting the above technical scheme, that brings has the beneficial effect that：
Prestress anchorage cable is by basic upper plate and basic infrastructure spheroid assembly connection, by applying prestressing force basis to anchor cable
Upper plate is connected together with basic infrastructure spheroid, when basis is acted on by uplift force, uplift force by it is upper carrying billet and
Prestress anchorage cable passes to multiple basic infrastructure spheroids on basis, is born completely by the linkage of basic infrastructure spheroid, prevents basic quilt
Extract.Accordingly, it is capable to make top transmission tower that there is preferably resistance live load loading capability.
Prestress anchorage cable uses underground expansion structure, can reduce anchor hole diameter, thus can save concrete amount and
Mountain area soil excavation side is measured, and reduces construction costs, is reduced large area and is excavated the destruction to caused by environment, so as to protecting ecology ring
Border.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the schematic diagram that power transmission tower is under contraction state with the mat foundation of group's anchor cable in prestress anchorage cable；
Fig. 2 is the schematic diagram that power transmission tower is under expansion state with the mat foundation of group's anchor cable in prestress anchorage cable；
Fig. 3 is the structural representation that prestress anchorage cable is under expansion state；
Fig. 4 is the structural representation of fixed disk.
Embodiment
A kind of power transmission tower of the utility model is made furtherly of the embodiment of group's anchor cable mat foundation referring to figs. 1 to Fig. 4
It is bright.
As shown in Figures 1 to 4, a kind of power transmission tower group's anchor cable mat foundation, including basic upper plate 2, positioned at basic upper plate
Basic infrastructure spheroid in the ground of lower section, the upper carrying billet being arranged on basic upper plate, and some prestress anchorage cables 1,
The prestress anchorage cable includes steel strand wires 11, upper gusset piece 12, second line of a couplet fishplate bar 14 and pretension spring 13, the steel strand wires 11
Passed through from basic upper plate 2 and upper end is fixed with upper carrying billet, the lower end of the steel strand wires is connected with upper gusset piece 12, described
Pretension spring 13 is arranged between gusset piece 12 and second line of a couplet fishplate bar 14, is set between the upper gusset piece 12 and second line of a couplet fishplate bar 14
There are collapsible and expansion flexible anchor assemblies 15.
Wherein, as shown in figure 3, the flexible anchor assemblies 15 include upper connecting rod 151 and lower link 152, the upper connecting rod 151
And one end of lower link 152 is hinged, the other end of the upper connecting rod 151 is be hinged with upper gusset piece 12, the lower company
The other end of bar 152 is be hinged with lower linking plate 14.Flexible anchor assemblies 15 are arranged in anchor hole 4 by steel sleeve 3, and stretch anchor assemblies 15
To central reduction, you can be put into steel sleeve 3.The bottom of anchor hole is provided with the expanded bore 41 for accommodating basic infrastructure spheroid.The steel
Sleeve pipe 3 is removably connected with rope 32, and for lifting steel sleeve 3 upwards, the oral area of the steel sleeve is provided with suspension ring 31, described
The bottom of rope is provided with the hook coordinated with suspension ring.Rope 32 is provided with two and uniform along steel bushing spout part so that carries
When lifting steel sleeve 3, steel sleeve 3 is more uniformly stressed drawstring 32, pulls steel sleeve 3 more convenient and strength-saving.
When flexible anchor assemblies 15 are in tightening state, pretension spring 13 is in extended state, while stretches flexible anchor group
Part 15, flexible anchor assemblies 15 are made to pierce into steel sleeve 3, to be placed in anchor hole 4；When flexible anchor assemblies 15 and the bottom of steel sleeve 3
When together in expanded bore 41, it can be expanded, upper gusset piece 12 is withstood by rigid supporting rod, passed through with rope 32
Suspension ring 31 on steel sleeve above carry, simultaneously because the effect of pretension spring 13, when to make flexible anchor assemblies 15 be in expansion state.Again
The interior casting concrete into the cavity between steel sleeve 3 and anchor hole hole hole wall, make basic infrastructure spheroid and the flexible anchor after expansion
Component 15, which pours, to be combined as a whole.Prestress anchorage cable 1 uses underground expansion structure, can reduce anchor hole diameter, saves concrete
Dosage and mountain area soil excavation side amount, reduce construction costs, reduce large area and excavate the destruction to caused by environment, so as to protect
Ecological environment.In the present embodiment, the flexible anchor assemblies 15 are provided with four groups and along upper gusset piece 12 and second line of a couplet fishplate bars 14
It is circumferential uniform.So that flexible anchor assemblies 15 extend from four direction to anchor hole 4 so that being wrapped in after cast concrete
Prestress anchorage cable being more uniformly stressed in all directions.And prestress anchorage cable can be certainly using the flexible expansion structure of spring
By stretching, it is readily transported and constructs.
Basic upper plate 2 is poured by armored concrete to be formed, and basic upper plate 2 is connected with upper carrying billet by crab-bolt,
Basic upper plate is cast on lower carrying billet simultaneously.
Pressure, horizontal force and moment of flexure of the main function of basic upper plate for resistance straight down, when basis is pushed masterpiece
Used time, lower pressure are born by basic upper plate completely, prevent basis from lateral sliding occur and toppling；The main work of basic infrastructure spheroid
With being to resist superstructure due to uplift force caused by the factors such as wind load, when basis is acted on by uplift force, uplift force passes through
Upper carrying billet and prestress anchorage cable pass to the multiple basic infrastructure spheroids in basis, are held completely by the linkage of basic infrastructure spheroid
By preventing basis to be pulled out.Accordingly, it is capable to make top transmission tower that there is preferably resistance live load loading capability.
Upper carrying billet and prestress anchorage cable mainly play a part of to transmit uplift force, and basic upper plate is primarily subjected to push
Power, horizontal force, basic infrastructure spheroid are primarily subjected to uplift force, and such foundation load transmission is clear and definite, basic stress is clear.And steel twists
After line 11 is fixed with upper carrying billet, the contact area connected between steel strand wires and basic upper plate can be increased, is prevented
Excessive stress concentration phenomenon.
Pressure, horizontal force and moment of flexure of the main function of basic upper plate for resistance straight down, can reduce certain thickness,
Therefore concrete amount and mountain area soil excavation side amount can be saved, reduces construction costs, large area is reduced and excavates to environment
Caused by destruction, so as to preserve the ecological environment；This foundation construction mechanization degree is high simultaneously so that short construction period, raising are applied
Work efficiency rate, reduce construction cost.
Further, first through hole is provided with upper carrying billet, the top of the upper carrying billet, which is provided with, to be fixed
Disk 5, the steel strand wires 11 are passed through from first through hole and fixed with fixed disk 5, and fixed disk can pass through bolt 52 and upper carrying
Billet and basic upper plate are fixed as one.Fixed disk 5 increases the contact area between steel strand wires 11 and upper carrying billet,
Prevent excessive stress concentration phenomenon.Fixed disk 5 is provided with prestressing force intermediate plate anchorage 51, for fixing steel strand wires
End.
Shown in reference picture 4, the fixed disk is provided with the second through hole 50, and the second through hole is reverse frustoconic, prestressing force intermediate plate
Anchorage 51 uses split type templin chuck.The steel strand wires pass through from first through hole and the second through hole and by split type wedges
Clevis head is fixed.Split type templin chuck is easy to clamp steel strand wires, and templin chuck has during being clamped to steel strand wires
There is auto-lock function, be not likely to produce sliding phenomenon；The through hole and templin chuck of reverse frustoconic are engaged, to the templin chuck in through hole
It is fixed, prevents templin chuck from sliding.And steel strand wires termination is fixed using prestressing force intermediate plate anchorage, by applying to steel strand wires
Prestressing force, upper and lower concrete is set to be linked together by steel strand wires.
The utility model additionally provides a kind of construction method of power transmission tower with group's anchor cable mat foundation, and step is as follows：
(1) excavation pit on selected ground, bores downwards some anchor holes, using broaching equipment vertically in the bottom of foundation ditch
By anchor hole bottom reaming to designed size；
(2) gusset piece is connected with steel strand wires and (can fixed using templin chuck) on, and steel sleeve is socketed in into flexible anchor group
On the outside of part and it is put into together in anchor hole, now pretension spring is in extended state, while stretches flexible anchor assemblies, makes flexible anchor
Component is in contraction state；
(3) top for propping up upper gusset piece is stretched into anchor hole using apparatuses such as support bars, pulls up rope, rope
Steel sleeve is driven to move up so that flexible anchor assemblies stretch out steel sleeve in the reaming of anchor hole bottom, pretension spring retraction,
So that expanding outwardly flexible anchor assemblies, support bar is then taken out；
(4) concrete is injected into anchor hole so that concrete and prestress anchorage cable in anchor hole condense integrally, are also formed
Basic infrastructure spheroid, during multiple construction prestressed cables, need to carry out (first pouring middle part prestressing force from inside to outside successively
Anchor cable, then pour the prestress anchorage cable around middle part)；
(5) concrete, basis of formation upper plate are poured into a mould in foundation ditch.
Finally, basic upper plate is connected with upper carrying billet by crab-bolt, and fixed disk is placed on upper carrying billet,
Steel strand wires are locked on fixed disk using split type templin chuck.
Had the advantage that using the basis：
(1) physical and mechanical property of not same material can be fully played, saves material, reduces cost.
(2) the original state soil body can be made full use of, foundation anti-pulling reliability is higher.
(3) with the emergence of extreme climate, Transmission Line Design status will step up dynamic load afterwards, use
Flexible foundation, it can make top shaft tower that there is preferably resistance live load loading capability.
(4) spoir amount can be reduced, so as to preserve the ecological environment.
(5) convenient disassembly, basic projects amount is reduced.
(6) the foundation structure load transmits clear and definite, and Structure Calculation and construction are easier.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (5)
- A kind of 1. power transmission tower group's anchor cable, it is characterised in that：It is described pre- including upper carrying billet and some prestress anchorage cables Stress anchor cable includes steel strand wires, upper gusset piece, second line of a couplet fishplate bar and pretension spring, the upper end of the steel strand wires and upper carrying steel Backing plate is fixed, and the lower end of the steel strand wires is connected with upper gusset piece, and the pretension spring is arranged on gusset piece and lower link Collapsible and expansion flexible anchor assemblies, the flexible anchor assemblies are provided between plate, between the upper gusset piece and second line of a couplet fishplate bar In its natural state by pretension spring effect and outside adjacent circumferential expansion.
- A kind of 2. power transmission tower group's anchor cable according to claim 1, it is characterised in that：The flexible anchor assemblies include upper company One end of bar and lower link, the upper connecting rod and lower link is hinged, the other end of the upper connecting rod and upper gusset piece Be hinged, the other end and the lower linking plate of the lower link are hinged.
- A kind of 3. power transmission tower group's anchor cable according to claim 2, it is characterised in that：The flexible anchor assemblies are provided with four Group and along the circumferential uniform of upper gusset piece and second line of a couplet fishplate bar.
- A kind of 4. power transmission tower group's anchor cable according to claim 1, it is characterised in that：Set on the upper carrying billet There is first through hole, the top of the upper carrying billet is provided with fixed disk, and the fixed disk is provided with the second through hole, and the steel twists Line is passed through and fixed from first through hole and the second through hole.
- A kind of 5. power transmission tower group's anchor cable according to claim 4, it is characterised in that：Second through hole is inverted round stage Shape, the split type templin chuck for clamping steel strand wires is provided with second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730960.2U CN206887987U (en) | 2017-06-22 | 2017-06-22 | A kind of power transmission tower group's anchor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730960.2U CN206887987U (en) | 2017-06-22 | 2017-06-22 | A kind of power transmission tower group's anchor cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206887987U true CN206887987U (en) | 2018-01-16 |
Family
ID=61316552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720730960.2U Active CN206887987U (en) | 2017-06-22 | 2017-06-22 | A kind of power transmission tower group's anchor cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206887987U (en) |
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2017
- 2017-06-22 CN CN201720730960.2U patent/CN206887987U/en active Active
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