CN202899158U - Transformer substation geographic information system (GIS) power distribution device temperature expansion joint concrete foundation - Google Patents
Transformer substation geographic information system (GIS) power distribution device temperature expansion joint concrete foundation Download PDFInfo
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- CN202899158U CN202899158U CN 201220535707 CN201220535707U CN202899158U CN 202899158 U CN202899158 U CN 202899158U CN 201220535707 CN201220535707 CN 201220535707 CN 201220535707 U CN201220535707 U CN 201220535707U CN 202899158 U CN202899158 U CN 202899158U
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Abstract
The utility model relates to the technical field of power delivery and transformation, in particular to a transformer substation geographic information system (GIS) power distribution device temperature expansion joint concrete foundation. The transformer substation GIS power distribution device temperature expansion joint concrete foundation comprises a GIS equipment foundation and a base embedded part, wherein temperature expansion joints with the width of 20mm are arranged by the GIS equipment foundation at intervals of 20-25m, steel bars are all disconnected at the positions of the temperature expansion joints. Compared with the prior art, the transformer substation GIS power distribution device temperature expansion joint concrete foundation has the advantages that due to the fact that the temperature expansion joints are arranged on a transformer substation mass concrete structure, the transformer substation GIS power distribution device temperature expansion joint concrete foundation can not only effectively solve surface cracks and penetrated cracks of the GIS equipment foundation, can partitioning teeming in construction, is greatly convenient to construct, and provides a brand new idea for the design of the transformer substation GIS equipment foundation.
Description
Technical field
The utility model relates to and send the power transformation technical field, specifically relates to a kind of GIS of transformer station power distribution equipment Temperature Joint concrete foundation.
Background technology
Transformer station's GIS distribution equipment foundation is that a kind of physical dimension is large, complex structure, the reinforced concrete foundation structure that the concrete work amount is large.To reach more greatly concrete shrinkage very fast because of the temperature difference in construction for this class large volume concrete structural, often cracks with the built-in fitting both sides at concrete surface crackle to occur.
As the GIS equipment Foundations, structural safety is primary, causes that owing to structural load causes bearing capacity, insufficient rigidity the reason in crack is as follows:
1), the GIS foundation uneven settlement, the GIS basis is because the concrete square amount is larger, and planeness is had relatively high expectations, and tiny differential settlement appears in the basis, all can cause the distortion on basis, even the crack occur.Base form is selected, and this class problem all can appear in disturbance improper, to foundation soil when constructing;
2), concrete expands along with the variation of temperature or shrinks, and is called temperature deformation.To Mass Concrete Construction external crack and penetrability crack owing to temperature deformation, concrete shrinkage cause.Problems occurs more, and needs emphasis to solve.
In the traditional design concept, the set that the GIS basis is circuit breaker foundation, isolating switch is basic, arrester is basic, service chamber is basic, bus is basic, switch board is basic and sleeve pipe is basic, the embedded part of its surface of base, earth terminal point, cable trench arrange that the historian is intensive crowded and irregular, and be stricter to the construction precision requirement of basic planeness, sedimentation and deformation and embedded part.Therefore even should be an integral body, and can not the set temperature seam, settlement joint etc.
Summary of the invention
The technical problems to be solved in the utility model is the deficiency that exists for prior art, provides a kind of and can keep basic planeness, can effectively solve again the GIS of the transformer station power distribution equipment Temperature Joint concrete foundation of basic crack problem.
The utility model GIS of a kind of transformer station power distribution equipment Temperature Joint concrete foundation is achieved by following technical proposals: a kind of GIS of transformer station power distribution equipment Temperature Joint concrete foundation comprises GIS equipment Foundations, basic built-in fitting, described GIS equipment Foundations arrange the wide Temperature Joint of 20mm every 20～25 meters intervals, and Temperature Joint place reinforcing bar all disconnects.
The utility model GIS of a kind of transformer station power distribution equipment Temperature Joint concrete foundation has following beneficial effect compared with prior art: the utility model is the set temperature shrinkage joint in transformer station's large volume concrete structural, not only can effectively solve GIS surface of base crack and through crack, can pour into a mould by piecemeal during construction, be very easy to construction.Design to transformer station GIS basis has proposed a kind of brand-new thinking.
Description of drawings
Fig. 1 is the utility model GIS of a kind of transformer station power distribution equipment Temperature Joint concrete foundation structural representation.
Wherein: 1, GIS equipment Foundations; 2, basic built-in fitting; 3, Temperature Joint.
The specific embodiment
Below in conjunction with drawings and Examples the utility model GIS of a kind of transformer station power distribution equipment Temperature Joint concrete foundation technical scheme is further described.
As shown in Figure 1, a kind of GIS of transformer station power distribution equipment Temperature Joint concrete foundation comprises GIS equipment Foundations 1, basic built-in fitting 2, described GIS equipment Foundations 1 arrange the wide Temperature Joint 3 of 20mm every 20～25 meters intervals, and Temperature Joint 3 place's reinforcing bars all disconnect.
Embodiment 1.
The utility model is analyzed and researched to the GIS equipment Foundations and structural safety is calculated, and every 20～25 meters intervals the wide Temperature Joint 3 of 20mm is set in GIS equipment Foundations 1, and Temperature Joint 3 place's reinforcing bars all disconnect.
The setting position of Temperature Joint should be determined according to the placement location of concrete engineering GIS equipment.Built-in fitting is still by former design setting.
Being calculated as follows of the utility model GIS of a kind of transformer station power distribution equipment concrete foundation set temperature shrinkage joint:
One. computational analysis:
The GIS equipment Foundations are because length is longer, bulky, GIS electric fixtures in top is had relatively high expectations to the basis in addition, requirement from present domestic equipment manufacturer, the differential settlement on whole basis must not be greater than ± 5mm, therefore, after the basis arranges the shrinkage joint, be mainly used to solve following problem:
1. whether the bearing capacity of foundation soil satisfies the requirement of basis and top equipment;
2. top GIS equipment be satisfied to the requirement of differential settlement in whole basis can.
Two. the principle at shrinkage joint is set
Can find out from top two problems, that bearing capacity of foundation soil or the differential settlement on basis all have direct relation with basic upper load and basic own wt, therefore when the shrinkage joint is set, answer the condition elements such as bonding apparatus, geology, be evenly arranged as far as possible.
Three. computational methods
1. bearing capacity of foundation slab calculates
According to " Code for design of building " (GB50007-2011) 5.2.1 bar, should satisfy during design:
F
i---i section GIS weight of equipment (KN)
G
i---i section GIS basis weight (KN)
A
i---i segment base plinth floor space (m
2)
F
a---revised characteristic value of foundation bearing capacity (kpa)
2. the equipment Foundations differential settlement calculates
In the calculating, according to the requirement to the basis that GIS equipment producer provides, should satisfy following result:
A minute interblock differential settlement all is not more than ± 5mm arbitrarily, namely
Wherein:
K is empirical coefficient, according to geological conditions, and local experience, desirable k=0.9 ~ 1.1.
S
1, S
2S
I-1Be respectively basic the 1st section and the 2nd section ..., the differential settlement of i-1 section and i section.
The deformation values of each piecemeal can according to " Code for design of building " (GB50007-2011) the 5.3rd the joint calculate, that is:
Above formula explanation sees (GB50007-2011) 5.3.5 bar for details.
Four. conclusion:
Can find out from above computational analysis, behind the GIS basis instrument shrinkage joint, the key of basic calculation is to control the differential settlement between each segmentation basis, and wherein the value of empirical coefficient k value is comparatively crucial.From Practical Project, it is 0.9 ~ 1 proper that the k value is got, and all can satisfy equipment requirement.But better regional at geological conditions, as long as the suo loco at shrinkage joint is set, the k value is got 1.1 and also can be met the demands.Therefore, k value location 0.9 ~ 1.1 is comparatively suitable.
Claims (1)
1. the GIS of transformer station power distribution equipment Temperature Joint concrete foundation, comprise GIS equipment Foundations (1), basic built-in fitting (2), it is characterized in that: described GIS equipment Foundations (1) arrange the wide Temperature Joint of 20mm (3) every 20～25 meters intervals, and Temperature Joint (3) is located reinforcing bar and all disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535707 CN202899158U (en) | 2012-10-19 | 2012-10-19 | Transformer substation geographic information system (GIS) power distribution device temperature expansion joint concrete foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535707 CN202899158U (en) | 2012-10-19 | 2012-10-19 | Transformer substation geographic information system (GIS) power distribution device temperature expansion joint concrete foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202899158U true CN202899158U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535707 Expired - Lifetime CN202899158U (en) | 2012-10-19 | 2012-10-19 | Transformer substation geographic information system (GIS) power distribution device temperature expansion joint concrete foundation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590495A (en) * | 2013-11-25 | 2014-02-19 | 山东电力工程咨询院有限公司 | General and adjustable floor foundation embedded assembly for indoor GIS and construction method thereof |
| CN103711142A (en) * | 2014-01-09 | 2014-04-09 | 中国能源建设集团安徽省电力设计院 | GIS foundation for 220kv transformer substation |
| CN105421483A (en) * | 2015-11-03 | 2016-03-23 | 国网山东省电力公司经济技术研究院 | Method for increasing first pass yield of equipment foundation embedded part stress isolation joints |
| CN106451300A (en) * | 2016-08-29 | 2017-02-22 | 山东电力工程咨询院有限公司 | Cable trench of general assembly type GIS empty casing foundation |
-
2012
- 2012-10-19 CN CN 201220535707 patent/CN202899158U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590495A (en) * | 2013-11-25 | 2014-02-19 | 山东电力工程咨询院有限公司 | General and adjustable floor foundation embedded assembly for indoor GIS and construction method thereof |
| CN103590495B (en) * | 2013-11-25 | 2015-08-12 | 山东电力工程咨询院有限公司 | The construction method of indoor GIS universal adjustable flooring basis embedded part |
| CN103711142A (en) * | 2014-01-09 | 2014-04-09 | 中国能源建设集团安徽省电力设计院 | GIS foundation for 220kv transformer substation |
| CN103711142B (en) * | 2014-01-09 | 2016-11-02 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of GIS foundation for 220kv transformer station |
| CN105421483A (en) * | 2015-11-03 | 2016-03-23 | 国网山东省电力公司经济技术研究院 | Method for increasing first pass yield of equipment foundation embedded part stress isolation joints |
| CN105421483B (en) * | 2015-11-03 | 2018-04-17 | 国网山东省电力公司经济技术研究院 | The method for improving Equipment Foundations embedded part stress isolation seam first-time qualification rate |
| CN106451300A (en) * | 2016-08-29 | 2017-02-22 | 山东电力工程咨询院有限公司 | Cable trench of general assembly type GIS empty casing foundation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |