CN204919588U - A board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower - Google Patents
A board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower Download PDFInfo
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- CN204919588U CN204919588U CN201520610974.1U CN201520610974U CN204919588U CN 204919588 U CN204919588 U CN 204919588U CN 201520610974 U CN201520610974 U CN 201520610974U CN 204919588 U CN204919588 U CN 204919588U
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Abstract
The utility model relates to a board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower compares with prior art and has solved the defect of assembling foundation construction inconvenience, incompatibility frozen soil environment. The utility model discloses a grade beam subassembly and bottom plate subassembly, bottom plate subassembly fixed mounting are tied through the flange valve snail on the bottom plate subassembly and are installed the round platform stand on the grade beam subassembly, the top of round platform stand is pre -buried to have rag bolt, the whole round platform structure that be of round platform stand, and the well lower part of round platform stand is hollow structure, and the wall thickness bottom the round platform stand is 0.25m -0.4m. The utility model discloses the unfavorable lifting by frost effect of tangential frost -heave force to the basis has effectively been avoided, the difficult problem that cold condition concrete is difficult to pour and condenses can be solved.
Description
Technical field
The utility model relates to prefabrication and assembly construction basic technology field, specifically a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line.
Background technology
The needs carried electric power along with economic development and land resources day by day deficient, work transmission line design is often difficult to avoid the poor area of some geological conditionss, as Frozen Ground Area.Conventional foundation pattern can be subject to the impact of frost-heave force in Frozen Ground Area, produce the harm such as lifting by frost, thaw collapse to basis.From Chinese frozen soil distribution map, frozen soil distributed area is weather severe cold area often, and long-term temperature, lower than 0 degree Celsius, all can have a huge impact stirring and condense during poured in place concrete basis, and easily make concrete damage by freeze injury, affect end product quality.The outdoor study time of harsh climate to constructor also creates very large restriction simultaneously, greatly have impact on the construction period.Conventional assembling type base monomer weight is often comparatively large, requires higher, need large-scale lifting machinery just can complete, and be difficult to exactitude position, cause construction inconvenience during in-site installation vehicle.Though have now portion of techniques proposition for the basic content of frozen soil environment, but all there is some defects and problem, as the patent No. be 200920081094.4, name is called the patent document on prefabricated assembled basis, it adopts assembling type base, just from the convenient type of design considering basis of installation, but also there is following problem:
1, it adopts column to be arranged on base plate, and column is steel concrete solid construction, and it still exists autologous heavier-weight, not easily carries, installs the problem of difficulty;
2, column is square column structure, and its upper and lower size is all identical, in actual applications, acts on the tangent coordinate system of leg surface under the column of square column structure cannot disperse and eliminate frozen soil environment.
Under how developing a kind of applicable Frozen Ground Area harsh weather and the foundation pattern of constructability, become Frozen Ground Area basic engineering problem demanding prompt solution.
Utility model content
The purpose of this utility model is to solve assembly foundation construction inconvenience in prior art, being not suitable with the defect of frozen soil environment, provide a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line, comprise ground beam assembly and bottom deck assembly, bottom deck assembly is fixedly mounted on ground beam assembly, bottom deck assembly is provided with round platform column by flange plate bolt, the top of described round platform column is embedded with stone bolt, round platform column entirety is frustum cone structure, and the middle and lower part of round platform column is hollow-core construction, and the wall thickness of round platform column bottom is 0.25m-0.4m.
Described ground beam assembly comprises 2 short grade beams and 1 long grade beam, and ground beam assembly is " ten " font, the connection vertical with long grade beam and be all positioned at the middle part of long grade beam respectively of 2 short grade beams; Bottom deck assembly comprises 4 base plates, and 4 base plates to be arranged on respectively on ground beam assembly and to overlook in square.
Described ground beam assembly is embedded with crab-bolt, and bottom deck assembly is fixedly mounted in the crab-bolt of ground beam assembly by channel-section steel.
The cylinder gradient of described round platform column is 8 °-10 °.
The material of described ground beam assembly, bottom deck assembly and round platform column is light weight aggregate concrete.
beneficial effect
A kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line of the present utility model, compared with prior art effectively prevent the unfavorable lifting by frost effect of tangent coordinate system to basis, the difficult problem that cold conditions concrete is difficult to build and condense can be solved.By the design of round platform column bottom hollow-core construction, solve assembling type base substance large, inconvenient shortcoming is installed in transport, greatly reduces cost of transportation, the installation of convenient construction unit.Adopted the design of frustum cone structure by round platform column, smooth curved surface effectively can reduce tangent coordinate system, when the cylinder gradient of round platform column reaches 9 °, can eliminate tangent coordinate system completely to basis being pulled out stable impact.Basic component of the present utility model adopts prefabrication, and it is more secure that quality compares cast in situs, improves engineering construction standard.Reduce assembly foundation difficulty of construction, eliminate tangent coordinate system, mechanized construction level can be improved, greatly reduce constructor's labour intensity, save labour turnover, be more adapted to the transmission line of electricity of frozen soil environment.
Accompanying drawing explanation
Fig. 1 is structure elevation of the present utility model;
Fig. 2 is structure top view of the present utility model;
Fig. 3 is stereochemical structure phantom drawing of the present utility model;
Wherein, hole, 5-crab-bolt, 6-stone bolt, 7-flange plate bolt, 8-channel-section steel, 21-base plate, the short grade beam of 31-, the long grade beam of 32-in 1-round platform column, 2-bottom deck assembly, 3-ground beam assembly, 4-.
Detailed description of the invention
For making to have a better understanding and awareness architectural feature of the present utility model and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
As shown in Figure 1, Figure 2 and Figure 3, a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line described in the utility model, comprises ground beam assembly 3 and bottom deck assembly 2, and bottom deck assembly 2 is fixedly mounted on ground beam assembly 3.Based on the environmental quality of Frozen Ground Area, conveniently transport and install, ground beam assembly 3 comprises 2 short grade beams 31 and 1 long grade beam 32, ground beam assembly 3 is totally " ten " font, 2 short grade beams 31 respectively with the vertical connection of long grade beam 32, and be all positioned at the middle part (central point) of long grade beam 32.By the combination of 2 short grade beams 31 and 1 long grade beam 32, form the ground beam assembly 3 of " ten " font, for bottom deck assembly 2 provides support.Ground beam assembly 3 is embedded with crab-bolt 5, namely on short grade beam 31 and long grade beam 32, is all embedded with crab-bolt 5, for fixed base plate 21.Bottom deck assembly 2 comprise 4 base plates, 21,4 base plates 21 be arranged on respectively ground beam assembly 3 on and overlook in square.4 base plates 21 splice mutually, and are fixedly mounted on by channel-section steel 8 in the crab-bolt 5 of ground beam assembly 3, thus form bottom deck assembly 2 fixing on ground beam assembly 3.Bottom deck assembly 2 is provided with round platform column 1 by flange plate bolt 7, and flange plate bolt 7 can be embedded on bottom deck assembly 2, is namely divided into four parts and is embedded on 4 base plates 21, is combined to form an integral (type) flange valve snail bolt 7 by 4 base plates 21.Round platform column 1, base plate 21, short grade beam 31 and long grade beam 32 are precast concrete unit, and its strength grade all adopts C40.
The top of round platform column 1 is embedded with stone bolt 6, for the convenient column foot connecting steel tower.Round platform column 1 entirety is frustum cone structure, i.e. up-narrow and down-wide structure.At this, round platform column 1 is designed to frustum cone structure, the cylinder gradient of round platform column 1 is 8 °-10 °, tangent coordinate system can well being reduced on basis being pulled out stable impact, when the round platform column cylinder gradient reaches 9 °, the adverse effect of tangent coordinate system can be eliminated completely.The middle and lower part of round platform column 1 is hollow-core construction, and hole 4 during the middle and lower part namely in round platform column 1 is provided with, which reduces the own wt of round platform column 1.The material of ground beam assembly 3, bottom deck assembly 2 and round platform column 1 can also be adopted light weight aggregate concrete, reduce mounting structure weight 20 ~ 30% further, reduce the difficulty of construction hoisting and workman's installation in position, improve efficiency of construction.When ensureing round platform column 1 stability under loading and meeting pre-embedded anchoring bolts 6 anchorage length, utilize the hollow structure bottom round platform column 1 to greatest extent, alleviate the deadweight of column body.And it is not only convenient to the transport of round platform column 1, the more convenient construction and installation of round platform column 1.In order to ensure the support force to steel tower, the wall thickness bottom round platform column 1 can be 0.25m-0.4m.
During actual use, require to determine bolt size and pre-buried length according to tower.Round platform column 1, base plate 21, short grade beam 31 and long grade beam 32 are carried out at the scene combination to install, be first arranged on short grade beam 31 and long grade beam 32 by base plate 21, then round platform column 1 is arranged on base plate 21, the installation completing basis is fixed.Whole foundation construction process does not need on-the-spot formwork to prick muscle concreting, does not need concrete strength by the time to reach the installation carrying out top steel tower after 70% more yet, can carry out payment and install after the complete backfill of foundation construction.The shorter engineering time also greatly reduces the disturbance to frozen soil, is reduced to minimum to the destruction of environment.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and manual; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (5)
1. the board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line, comprise ground beam assembly (3) and bottom deck assembly (2), bottom deck assembly (2) is fixedly mounted on ground beam assembly (3), bottom deck assembly (2) is provided with round platform column (1) by flange plate bolt (7), it is characterized in that: the top of described round platform column (1) is embedded with stone bolt (6), round platform column (1) entirety is frustum cone structure, the middle and lower part of round platform column (1) is hollow-core construction, and the wall thickness of round platform column (1) bottom is 0.25m-0.4m.
2. a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line according to claim 1, it is characterized in that: described ground beam assembly (3) comprises 2 short grade beams (31) and 1 long grade beam (32), ground beam assembly (3) is " ten " font, and 2 short grade beams (31) are all positioned at the middle part of long grade beam (32) with long grade beam (32) vertical connection respectively; Bottom deck assembly (2) comprises 4 base plates (21), and 4 base plates (21) are arranged on ground beam assembly (3) respectively and go up and overlook in square.
3. a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line according to claim 1, it is characterized in that: described ground beam assembly (3) is embedded with crab-bolt (5), bottom deck assembly (2) is fixedly mounted in the crab-bolt (5) on ground beam assembly (3) by channel-section steel (8).
4. a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line according to claim 1, is characterized in that: the cylinder gradient of described round platform column (1) is 8 °-10 °.
5. a kind of board-like assembly foundation of cavity round platform for Frozen Ground Area iron tower of power transmission line according to claim 1, is characterized in that: the material of described ground beam assembly (3), bottom deck assembly (2) and round platform column (1) is light weight aggregate concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610974.1U CN204919588U (en) | 2015-08-14 | 2015-08-14 | A board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower |
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| CN201520610974.1U CN204919588U (en) | 2015-08-14 | 2015-08-14 | A board -like assembly of cavity round platform basis for frozen soil area transmission line iron tower |
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| CN204919588U true CN204919588U (en) | 2015-12-30 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804109A (en) * | 2016-03-21 | 2016-07-27 | 南京电力工程设计有限公司 | Concrete assembly type foundation |
| CN106498972A (en) * | 2016-12-27 | 2017-03-15 | 国网江苏省电力公司经济技术研究院 | A kind of concrete assembled basis and its installation method |
| CN107893427A (en) * | 2017-12-13 | 2018-04-10 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of prefabricated assembled cored slab column foundation for transmission line of electricity |
| CN108005099A (en) * | 2017-11-24 | 2018-05-08 | 国网江苏省电力公司南京供电公司 | A kind of shaft tower prefabricated assembled concrete stepped footing and its assembling method |
| CN109505304A (en) * | 2018-11-13 | 2019-03-22 | 青海送变电工程有限公司 | A kind of permafrost soil area assembled type base for power transmission line iron tower prefab-form |
| CN110241840A (en) * | 2019-06-06 | 2019-09-17 | 浙江华云电力工程设计咨询有限公司 | A kind of premade shells Screw Anchor composite foundation and construction method |
| CN111119222A (en) * | 2019-12-19 | 2020-05-08 | 中国电力科学研究院有限公司 | Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region |
| CN113417313A (en) * | 2021-07-20 | 2021-09-21 | 四川电力设计咨询有限责任公司 | Section steel support shroud plate assembled foundation for frozen soil area |
| CN113756357A (en) * | 2021-08-10 | 2021-12-07 | 山东电力工程咨询院有限公司 | Assembly type plate foundation adopting hollow bottom plate and method |
-
2015
- 2015-08-14 CN CN201520610974.1U patent/CN204919588U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804109A (en) * | 2016-03-21 | 2016-07-27 | 南京电力工程设计有限公司 | Concrete assembly type foundation |
| CN105804109B (en) * | 2016-03-21 | 2019-01-22 | 南京电力工程设计有限公司 | A kind of concrete assembled basis |
| CN106498972A (en) * | 2016-12-27 | 2017-03-15 | 国网江苏省电力公司经济技术研究院 | A kind of concrete assembled basis and its installation method |
| CN106498972B (en) * | 2016-12-27 | 2018-11-06 | 国网江苏省电力公司经济技术研究院 | A kind of concrete assembled basic and its installation method |
| CN108005099A (en) * | 2017-11-24 | 2018-05-08 | 国网江苏省电力公司南京供电公司 | A kind of shaft tower prefabricated assembled concrete stepped footing and its assembling method |
| CN108005099B (en) * | 2017-11-24 | 2023-08-15 | 国网江苏省电力公司南京供电公司 | Prefabricated assembled concrete stepped foundation for pole tower and assembling method thereof |
| CN107893427A (en) * | 2017-12-13 | 2018-04-10 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of prefabricated assembled cored slab column foundation for transmission line of electricity |
| CN109505304A (en) * | 2018-11-13 | 2019-03-22 | 青海送变电工程有限公司 | A kind of permafrost soil area assembled type base for power transmission line iron tower prefab-form |
| CN110241840A (en) * | 2019-06-06 | 2019-09-17 | 浙江华云电力工程设计咨询有限公司 | A kind of premade shells Screw Anchor composite foundation and construction method |
| CN111119222A (en) * | 2019-12-19 | 2020-05-08 | 中国电力科学研究院有限公司 | Assembling device for ultra-high voltage direct current transmission line iron tower in alpine region |
| CN113417313A (en) * | 2021-07-20 | 2021-09-21 | 四川电力设计咨询有限责任公司 | Section steel support shroud plate assembled foundation for frozen soil area |
| CN113756357A (en) * | 2021-08-10 | 2021-12-07 | 山东电力工程咨询院有限公司 | Assembly type plate foundation adopting hollow bottom plate and method |
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