CN108335853A - Prefabricated assembled box-type transformer foundation - Google Patents
Prefabricated assembled box-type transformer foundation Download PDFInfo
- Publication number
- CN108335853A CN108335853A CN201810236865.6A CN201810236865A CN108335853A CN 108335853 A CN108335853 A CN 108335853A CN 201810236865 A CN201810236865 A CN 201810236865A CN 108335853 A CN108335853 A CN 108335853A
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- Prior art keywords
- concrete
- type transformer
- box type
- plate
- base
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- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a box-type transformer foundation, in particular to a prefabricated assembled box-type transformer foundation which comprises a foundation base, concrete plates, concrete columns and a channel steel base, wherein cup mouth bottom grooves are formed among four corners of the foundation base and the four corners of the foundation base and are used for inserting the concrete columns, reserved grooves are formed among the cup mouth bottom grooves and are used for inserting the concrete plates, embedded steel bars are poured at the top ends of the concrete columns, the channel steel base is welded with the steel bars at the top ends of the concrete columns, the box-type transformer base is placed on the channel steel base, and pervious concrete is poured around the box-type transformer base after the box-type transformer base is assembled. Compare steel construction basic formula box transformer basis, its technique utilizes the reinforcing bar to replace the concrete, can remove the process of on-the-spot die filling and maintenance from, but material cost is high, and the space requirement of putting to the material is high, and this design has material cost low, and installation and transportation make things convenient for safety, and these advantages of the operation risk is little.
Description
Technical field
The present invention relates to a kind of box type transformer bases, more particularly to a kind of precast splice type box type transformer basis.
Background technology
Traditional box type transformer part construction is often used cast-in-place concrete, there are following several respects：
First, environment factor:
1, box type transformer reconnaissance majority is in resident's core space and road both sides, the noise and dust pollution of generation of constructing, construction
When template, reinforcing bar heap be rivals in a contest urban environment and resident's normal life has some impact on.
2, construction is affected to construction quality and duration by weather, humidity, place factor, not only not such as thunderstorm weather
Outdoor construction can be carried out, humidity is excessively high to have an effect on civil engineering impression quality
Second, the construction period is long:
1, press that the traditional handicraft construction period is long, and the box type transformer die-filling construction in basis needs 3 days, curing period needs 28 days when
Between, account for about 90% or more the time in whole engineering construction period.
2, distribution, which has a power failure, plans just to formulate the power failure plan of next month in every month, but due to box type transformer foundation construction
Period is long, and power failure plan can be formulated by generally requiring civil construction completion, and power failure plan is dumb, often leads to concentrate and stop
Electricity seriously affects construction speed, also results in construction worker's overwork.
Third, construction quality is difficult to ensure：
Operation work post needed for civil construction has more：Form fixer, bar bender, concreter, by civil engineering operating personnel's quality influence, mix
Solidifying soil presentation quality is difficult to control；
Fourth, human cost is high：
It is shown according to distribution capital construction conventional project construction drawing design budget statement single box transformer foundation data in 2017, is manually accounted for
Box type transformer basis overall cost about 20%.
Fifth, operating risk is high：
It is analyzed according to job task security criteria risk guide operating risk：When template processes operation, log splitter or power cord leakage
When electricity and concreting, vibrator or power cord electric leakage are high risk operation.
Invention content
By statistical analysis, we are it can be appreciated that the reason for causing the box type transformer construction time long is die-filling
With conserve this two procedures on, as long as find effective method by it is die-filling and maintenance time controlled, can shorten box
The construction time of transformer, while solving the construction time and long lead to dust, a series of problem such as noise.The design is by drawing
The construction process for entering innovation develops precast splice type box type transformer basis, to reach to dress using the mode of precast assembly
The purpose that the time of mould and maintenance is controlled.
The technical scheme is that；A kind of precast splice type box type transformer basis, including sole plate, concrete plate, concrete
Column, channel steel base, the sole plate are equipped with rim of a cup kerve at four and are inserted into for concrete column between corner and corner, the cup
Preformed groove is equipped between mouth kerve to be inserted into for concrete plate, the top of the concrete column has poured embedded bar, the channel steel base and concrete
The reinforcement welding of top end, box type transformer pedestal are placed in channel steel base, and the box type transformer basis is after the completion of assembly
Pervious concrete is poured around.
Further, the top of the concrete plate is equipped with when preformed hole is placed convenient for box type transformer and is positioned.
Further, steel plate is embedded in the rim of a cup kerve, concrete column uses socket joint connection method, the concrete with rim of a cup kerve
The bottom of column carries out back-grouting after being contacted with rim of a cup kerve by steel plate.It is held the bottom of as by steel plate, ensures the flat of rim of a cup kerve
It is whole, while making concrete column in stress, ensure each concrete column uniform force.
Further, steel plate is equipped between the reinforcing bar of concrete top end and steel tank pedestal.Every concrete capital pre-embedded steel slab, with channel steel
Tube chamber welds with base makes steel tank pedestal and the integral stress of cylindricality, and structural system is easy for installation, securely and reliably.
Further, the joint gap between the concrete plate and concrete column is handled using the weather proofing silicone sealant cementation of fissures.Weather-proof silicon
Seam fills up ketone seal gum entirely, meets side wall waterproof requirement.
Further, sole plate is based on C15 concrete bed courses, and laying bar pouring is built on C15 concrete bed courses.Using existing
Reinforced concrete footing, and the low slot of reserved rim of a cup are poured, enhances the load-bearing of sole plate, while being convenient for precast assembly.
Further, sole plate is equipped with inlet, and in the pre-buried pvc pipe of inlet, pvc pipe is pre-buried before concreting,
Avoid digging the concrete floor of sole plate.
Further, the concrete plate, be equipped with circular hole for interting vertical loading board on concrete column.Embedded steel tube is developed in circular hole
Column positioning auxiliaring tool, edge-corner column, intermediolateral column reserve auxiliary tool positioning round orifice respectively, for interting column positioning auxiliaring tool,
The round orifices orientation reserved on column needs accurate.
Further, the steel tank pedestal is matrix pattern structure, each right angle of the matrix pattern structure, which is equipped with, puts more energy into
Plate.The structural strength for reinforcing steel tank pedestal, ensures to make steel tank pedestal not will produce deformation in the weight for bearing transformer base
Influence the balance of transformer base.
Concrete column is reinforced concrete upright column, is anisotropic section, and tongue and groove size is reserved on column needs accurate, precast reinforced coagulation
Earth pillar need to control the flatness, verticality and position relationship of every pillar when installing, control errors are in 5mm.
All exposed ironwares are all made of galvanizing anti-corrosion（105 μm of galvanizing minimum average thickness）, site welding is zinc-plated to be broken
Harm is used uniformly cold spray zinc processing（Cold 120 μm of spray zinc minimum average thickness）, and polyurethane closed one of thickness of finishing coat is applied outside
Not less than 20 μm, welding rod：E43xx types, throat depth are not less than 6mm, fusion length：Full weld.
The specific implementation steps in precast splice type box type transformer basis are as follows；
1）Foundation trench excavates, and pours the C15 concrete bed courses of sole plate, and bar pouring is laid on C15 concrete bed courses and builds and reserves rim of a cup bottom
Slot and preformed groove；
2）Prefabrication reinforced concrete upright column orders SMC composite side plates as concrete plate, makes channel steel base as concrete column；
3）Concrete column, concrete plate and channel steel base are installed, the joint gap between concrete plate and concrete column uses the weather proofing silicone sealant cementation of fissures
Processing；
4）Become around basis in the case and pour pervious concrete, box type transformer pedestal is placed in channel steel base.
The target of the design was the field operation time control by box type transformer basis within 5 days, met existing state
Family and industry construction technology standard.Simplify the operational procedure that original case becomes basis, construction method reduces construction operation area, improves
Working efficiency reduces influence of the construction to neighbouring resident, meets case and becomes requirement, from heavy and light and realizes without mechanized construction,
Shorten case and become the Foundation Fieldbus field construction operation period, improve level of security and working efficiency, there is wide popularizing application prospect.
The beneficial effects of the invention are as follows；
1, it is optimized by becoming basis to case, case history verification, pin-connected panel precast box, which becomes basis, has replicability.
2, case becomes basis using cast-in-situ steel reinforced concrete bottom plate, and prefabricated reinforced concrete column and SMC finished product composite plates are done
For side wall building enclosure, prefabricated component single-piece maximum weight is less than 0.25 ton, exempts to use Large-scale Hoisting equipment, easy for installation.
3, concrete column and sole plate reserve rim of a cup kerve and use socket joint connection method, and installation speed is fast, and every concrete capital is pre-
Steel plate is buried, is welded with channel steel base, makes steel tank pedestal and the integral stress of cylindricality, structural system is easy for installation, securely and reliably.
4, prefabricated component carry out standardization plant produced, only there are two specification prefabricated component, reduce manpower, raw material, when
Between, the cost in terms of process.Pin-connected panel construction is carried out at scene, reduces the waste that human factor is difficult to avoid that, is reduced existing
Field wet construction, promotes operating environment, avoids the waste of water power raw material, has apparent economic benefit.Pin-connected panel component can be examined
Consider the ability for giving full play to component factory production equipment, reduce specification, the type of component, improve the versatility and interchangeability of component,
To realize that one is mostly used, and increases economic efficiency.
Description of the drawings
Fig. 1 is that the plane on the design basis sets figure.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is that steel tank base plane sets figure.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
Embodiment 1：
As shown in Fig. 1-Fig. 3, a kind of precast splice type box type transformer basis, including sole plate 1, concrete plate 2, concrete column 3, slot
Steel base 4, the sole plate 1 are equipped with rim of a cup kerve 11 at four and are inserted into for concrete column 3 between corner and corner, the cup
Preformed groove 12 is equipped between mouth kerve 11 to be inserted into for concrete plate 2, the top of the concrete column 3 has poured embedded bar, the channel steel bottom
The reinforcement welding of seat 4 and 3 top of concrete column, box type transformer pedestal are placed in channel steel base 4, which is spelling
Pervious concrete is poured after the completion of dress around.
The top of concrete plate 2 is equipped with when preformed hole 21 is placed convenient for box type transformer and is positioned.
Steel plate is embedded in rim of a cup kerve 11, concrete column 3 uses socket joint connection method, the bottom of concrete column 3 with rim of a cup kerve 11
Back-grouting is carried out after being contacted with rim of a cup kerve 11 by steel plate.It is held the bottom of as by steel plate, ensures the smooth of rim of a cup kerve 11, together
When make concrete column 3 in stress, ensure each 3 uniform force of concrete column.
Steel plate is equipped between the reinforcing bar and steel tank pedestal 4 on 3 top of concrete column.Every concrete column 3 pushes up pre-embedded steel slab, with channel steel base
4 welding, make steel tank pedestal 4 form whole stress with concrete column 3, structural system is easy for installation, securely and reliably.
Joint gap between concrete plate 2 and concrete column 3 is handled using the weather proofing silicone sealant cementation of fissures.Weather proofing silicone sealant is complete
Seam fills up, and meets side wall waterproof requirement.
Sole plate 1 is based on C15 concrete bed courses, and laying bar pouring is built on C15 concrete bed courses.Using cast in place reinforced bar
Concrete bed, and the low slot 11 of reserved rim of a cup, enhance the load-bearing of sole plate 1, while being convenient for precast assembly.
Sole plate 1 is equipped with inlet 13, and in 13 pre-buried pvc pipe of inlet, pvc pipe is pre-buried before concreting, keeps away
Exempt from the concrete floor of cutting sole plate 1.
Circular hole is equipped on concrete plate 2, concrete column 3 for interting vertical loading board.Embedded steel tube develops column positioning auxiliary in circular hole
Tool, edge-corner column, intermediolateral column reserve auxiliary tool positioning round orifice respectively, for interting column positioning auxiliaring tool, are reserved on column
Round orifices orientation needs accurate.
Steel tank pedestal 4 is matrix pattern structure, each right angle of the matrix pattern structure is equipped with stiffener 41.Reinforce steel
The structural strength of slot bottom seat 4 ensures to make steel tank pedestal 4 not will produce influence of crust deformation transformation in the weight for bearing transformer base
The balance of device pedestal.
Concrete column 3 is reinforced concrete upright column, is anisotropic section, and tongue and groove size is reserved on column to be needed precisely, precast reinforced mixed
The flatness, verticality and position relationship of every pillar need to be controlled when solidifying earth pillar installation, control errors are in 5mm.
All exposed ironwares are all made of galvanizing anti-corrosion（105 μm of galvanizing minimum average thickness）, site welding is zinc-plated to be broken
Harm is used uniformly cold spray zinc processing（Cold 120 μm of spray zinc minimum average thickness）, and polyurethane closed one of thickness of finishing coat is applied outside
Not less than 20 μm, welding rod：E43xx types, throat depth are not less than 6mm, fusion length：Full weld.
Before concreting will first pre-buried good cable tube, must not after dig.
Box type transformer basis 500mm above ground level respectively sets ventilation opening one before and after the basis, and ventilation opening ruler is：
700mm（It is long） x250mm（It is high）, 150mm above ground level, the anti-toy partition board of ventilation opening installation, partition board is using 1.2mm thickness aluminium
Alloy sheets rush 15mm circular holes, and dummy plate aluminum alloy frame, ventilation opening partition board is interior to encapsulate galvanized steel wire netting, and mesh is not more than 5mm,
Partition board and galvanized steel wire netting are mounted on box type transformer basis ventilation opening position of center line.
The specific implementation steps in precast splice type box type transformer basis are as follows；
1）Foundation trench excavates, and pours the C15 concrete bed courses of sole plate 1, and bar pouring is laid on C15 concrete bed courses and builds and reserves rim of a cup bottom
Slot 11 and preformed groove 12；
2）Prefabrication reinforced concrete upright column orders SMC composite side plates as concrete plate 2, makes channel steel base 4 as concrete column 3；
3）Concrete column 3, concrete plate 2 and channel steel base 4 are installed, the joint gap between concrete plate 2 and concrete column 3 uses weather proofing silicone sealant
Cementation of fissures processing；
4）Become around basis in the case and pour pervious concrete, box type transformer pedestal is placed in channel steel base 4.
Compared to steel structure base formula box type transformer basis, technology is to replace concrete using reinforcing bar, can be removed from existing
The die-filling process with maintenance in field, but material cost is high, and the space requirement put to material is high, and the design is with material cost
It is low, installation and convenient transportation safety, these small advantages of operating risk.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (9)
1. a kind of precast splice type box type transformer basis, which is characterized in that including sole plate（1）, concrete plate（2）, concrete column
（3）, channel steel base（4）, the sole plate（1）Rim of a cup kerve is equipped between corner and corner at four（11）For concrete column
（3）It is inserted into, the rim of a cup kerve（11）Between be equipped with preformed groove（12）For concrete plate（2）It is inserted into, the concrete column（3）Top pour
There are embedded bar, the channel steel base（4）With concrete column（3）The reinforcement welding on top, box type transformer pedestal are placed on channel steel bottom
Seat（4）On, which pours pervious concrete after the completion of assembly around.
2. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the concrete plate（2）
Top be equipped with preformed hole（21）It is positioned when being placed convenient for box type transformer.
3. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the rim of a cup kerve
（11）Inside it is embedded with steel plate, concrete column（3）With rim of a cup kerve（11）Using socket joint connection method, the concrete column（3）Bottom pass through
Steel plate and rim of a cup kerve（11）Back-grouting is carried out after contact.
4. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the concrete column（3）
The reinforcing bar on top and steel tank pedestal（4）Between be equipped with steel plate.
5. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the concrete plate（2）
With concrete column（3）Between joint gap using the weather proofing silicone sealant cementation of fissures handle.
6. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the sole plate
（1）Based on C15 concrete bed courses, laying bar pouring is built on C15 concrete bed courses.
7. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the sole plate
（1）Equipped with inlet（13）, in inlet（13）Pre-buried pvc pipe, pvc pipe are pre-buried before concreting.
8. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the concrete plate（2）、
Concrete column（3）On be equipped with circular hole for interting vertical loading board.
9. a kind of precast splice type box type transformer basis according to claim 1, which is characterized in that the steel tank pedestal
（4）Each right angle for matrix pattern structure, the matrix pattern structure is equipped with stiffener（41）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236865.6A CN108335853A (en) | 2018-03-21 | 2018-03-21 | Prefabricated assembled box-type transformer foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810236865.6A CN108335853A (en) | 2018-03-21 | 2018-03-21 | Prefabricated assembled box-type transformer foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108335853A true CN108335853A (en) | 2018-07-27 |
Family
ID=62931123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810236865.6A Pending CN108335853A (en) | 2018-03-21 | 2018-03-21 | Prefabricated assembled box-type transformer foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108335853A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110512921A (en) * | 2019-09-12 | 2019-11-29 | 中铁第四勘察设计院集团有限公司 | Overhaul assembling structure, train overhaul platform and its construction method of column |
| CN113338327A (en) * | 2021-06-15 | 2021-09-03 | 国网江西省电力有限公司电力科学研究院 | Split frame type prefabricated foundation for assembled ring net cages and construction method |
| CN113565126A (en) * | 2021-08-17 | 2021-10-29 | 华润风电(安阳)有限公司 | Fan box becomes basis |
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| EP1970504A1 (en) * | 2007-03-16 | 2008-09-17 | ABB Technology AG | Modular foundation for a transformer station |
| CN202280073U (en) * | 2011-10-27 | 2012-06-20 | 南京远能电力工程有限公司 | Precast assembly type equipment foundation |
| CN205557555U (en) * | 2016-02-03 | 2016-09-07 | 海南电网有限责任公司海口供电局 | Prefabricated concatenation formula case becomes basis |
| CN106759420A (en) * | 2016-12-21 | 2017-05-31 | 上海电力设计院有限公司 | Prefabricated assembled transformer substation foundation structure |
| CN206396783U (en) * | 2017-01-04 | 2017-08-11 | 曲靖浩晨电力工程设计有限公司 | Assembled prefabricated ring main unit basis |
| CN208173365U (en) * | 2018-03-21 | 2018-11-30 | 广东电网有限责任公司东莞供电局 | Prefabricated assembled box-type transformer foundation |
-
2018
- 2018-03-21 CN CN201810236865.6A patent/CN108335853A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1970504A1 (en) * | 2007-03-16 | 2008-09-17 | ABB Technology AG | Modular foundation for a transformer station |
| CN202280073U (en) * | 2011-10-27 | 2012-06-20 | 南京远能电力工程有限公司 | Precast assembly type equipment foundation |
| CN205557555U (en) * | 2016-02-03 | 2016-09-07 | 海南电网有限责任公司海口供电局 | Prefabricated concatenation formula case becomes basis |
| CN106759420A (en) * | 2016-12-21 | 2017-05-31 | 上海电力设计院有限公司 | Prefabricated assembled transformer substation foundation structure |
| CN206396783U (en) * | 2017-01-04 | 2017-08-11 | 曲靖浩晨电力工程设计有限公司 | Assembled prefabricated ring main unit basis |
| CN208173365U (en) * | 2018-03-21 | 2018-11-30 | 广东电网有限责任公司东莞供电局 | Prefabricated assembled box-type transformer foundation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110512921A (en) * | 2019-09-12 | 2019-11-29 | 中铁第四勘察设计院集团有限公司 | Overhaul assembling structure, train overhaul platform and its construction method of column |
| CN113338327A (en) * | 2021-06-15 | 2021-09-03 | 国网江西省电力有限公司电力科学研究院 | Split frame type prefabricated foundation for assembled ring net cages and construction method |
| CN113338327B (en) * | 2021-06-15 | 2024-06-04 | 国网江西省电力有限公司电力科学研究院 | A prefabricated foundation and construction method of a split frame assembled ring network box |
| CN113565126A (en) * | 2021-08-17 | 2021-10-29 | 华润风电(安阳)有限公司 | Fan box becomes basis |
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