CN203684259U - Flange type foundation for outgoing line framework of 500-kV transformer substation - Google Patents
Flange type foundation for outgoing line framework of 500-kV transformer substation Download PDFInfo
- Publication number
- CN203684259U CN203684259U CN201420014464.3U CN201420014464U CN203684259U CN 203684259 U CN203684259 U CN 203684259U CN 201420014464 U CN201420014464 U CN 201420014464U CN 203684259 U CN203684259 U CN 203684259U
- Authority
- CN
- China
- Prior art keywords
- cup
- basis
- rim
- edge
- wing
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Foundations (AREA)
Abstract
The utility model relates to a flange type foundation for an outgoing line framework of a 500-kV transformer substation. Compared with the prior art, the flange type foundation overcomes the defects that construction difficulty is high, the engineering quantity is large, and construction cost is high. The flange type foundation comprises framework steel tube herringbone columns (8), a left flange (1), a left cup mouth foundation (2), a middle web connecting block (3), a right cup mouth foundation (4) and a right flange (5), wherein a left cup mouth (6) is formed in the left cup mouth foundation (2), a right cup mouth (7) is formed in the right cup mouth foundation (4), and the left flange (1), the left cup mouth foundation (2), the middle web connecting block (3), the right cup mouth foundation (4) and the right flange (5) are connected in sequence and are of an integrated concrete structure. The framework steel tube herringbone columns (8) are fixed into the left cup mouth (6) and the right cup mouth (7) respectively. The flange type foundation for the outgoing line framework of the 500-kV transformer substation forms overall stress, stress is reasonable, materials are saved, and construction efficiency is improved.
Description
Technical field
The utility model relates to transformer substation framework basic technology field, is a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure specifically.
Background technology
At present 500kV transformer station outlet structure pulling force conventionally >=50kN, the height of outlet structure is in 24m left and right.Uplift force by calculating general outlet structure herringbone column, more than 1000kN, is stressed and is slightly larger than uplift force.As shown in Figure 3,500kV outlet structure of the prior art basis adopts two independently rim of a cup bases, and herringbone column inserts respectively in two rim of a cup bases, two basis pressurized and tensions respectively.When adopting two rim of a cup whens basis independently, key dimension size is conventionally by uplift force control, in the situation that not considering buoyancy force of underground water, basic size generally should long for 5.0m, wide for 5.0m, buried depth be more than 3.0m.
Therefore, size and the buried depth on conventional 500kV transformer station outlet structure basis are larger, cause deep excavation project amount large.One-sided stressed in the situation that at outlet structure beam, two bases need be resisted respectively stressed, one, common two bases another resistance to plucking of pressurized, basis size is conventionally by inner side herringbone column's uplift force control, and key dimension is conventionally greatly, concrete is stressed is not fully exerted.And basic volume of the prior art is larger, the links such as template construction, reinforcing bar binding, the pouring concrete expense amount of all taking a lot of work, construction is difficulty comparatively.Deep pit digging also causes adverse effect near road, equipment Foundations soil supporting layer, causes periphery structure foundation treatment engineering amount to increase.How to develop a kind of framework basis with low cost, that reliability is high, difficulty of construction is low and become the technical problem of being badly in need of solution.
Utility model content
The purpose of this utility model is in order to solve the defect that in prior art, difficulty of construction is high, engineering quantity is large, engineering cost is high, provides a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure to solve the problems referred to above.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure, comprise framework steel pipe inverted Y-shaped column, also comprise left wing's edge, left rim of a cup basis, midfield contiguous block, right rim of a cup basis and right flank edge, described left rim of a cup basis is provided with left rim of a cup, described right rim of a cup basis is provided with right rim of a cup, described left wing's edge, left rim of a cup basis, midfield contiguous block, right rim of a cup basis are connected successively with right flank edge and are concrete integral structure, and described framework steel pipe inverted Y-shaped column is separately fixed in left rim of a cup and right rim of a cup.
Also comprise herringbone column's protective cap, described herringbone column's protective cap is arranged on left rim of a cup or right rim of a cup.
Described framework steel pipe inverted Y-shaped column is separately fixed in left rim of a cup and right rim of a cup by concrete.
Also comprise bed course, described bed course is arranged on the below of left wing's edge, left rim of a cup basis, midfield contiguous block, right rim of a cup basis and right flank edge by concrete.
Described left wing's edge and the length of right flank edge are 1.5 meters, are widely 4.6 meters, height and are 0.9 meter, the length on described left rim of a cup basis and right rim of a cup basis is 2.3 meters, is widely 2.2 meters, height and is 2.2 meters, the length of described midfield contiguous block be 2.9 meters, wide be that 2.2 meters, height are 1.5 meters.
The height of described bed course is 0.1 meter.
Beneficial effect
A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure of the present utility model, compared with prior art whole basis forms that entirety is stressed, reasonable stress, has saved material, improved efficiency of construction.The utility model connects two rim of a cup bases by midfield contiguous block, form an integral type foundation, the design feature of having used for reference H shaped steel " light middle part, heavy two ends ", 2 suspension columns one of herringbone column of having fitted draw the loading characteristic of a pressure, reach the feature of 2 suspension column coactions of herringbone column.By edge of a wing increased area and its top soil body weight, bear the larger pulling force in herringbone column one end.The utility model globality is strong, rigidity is large, foundation main wants resistance to compression and resistance to plucking to rely on the edge of a wing part at both ends, distribute herringbone column center of effort, resistance to compression and resistance to plucking ability double above compared with two single footings, and it is stressed that middle midfield contiguous block and the top soil body thereof also participate in entirety, and the overturning or slip resistance analysis performance of base integral is compared and is greatly improved with single basis.
Brief description of the drawings
Fig. 1 is structural front view of the present utility model
Fig. 2 is plan structure schematic diagram of the present utility model
Fig. 3 is framework foundation structure schematic diagram of the prior art
Wherein, 1-left wing edge, the left rim of a cup of 2-basis, 3-midfield contiguous block, the right rim of a cup of 4-basis, 5-right flank edge, the left rim of a cup of 6-, the right rim of a cup of 7-, 8-framework steel pipe inverted Y-shaped column, 9-herringbone column protective cap, 10-ground, 11-bed course.
Detailed description of the invention
For making that architectural feature of the present utility model and effect of reaching are had a better understanding and awareness, coordinate detailed explanation in order to preferred embodiment and accompanying drawing, be described as follows:
As shown in Figure 3, in prior art, adopt two rim of a cup bases to support to the support of framework steel pipe inverted Y-shaped column, separately independent support.In 500kV transformer station, framework basis need to meet relevant criterion and the needs of 500kV transformer substation framework: framework safe class is one-level, and coefficient for importance of structure is 1.1; Wind reference pressure: 0.20～0.45kN/m2 is met in site district for 50 years one; Basic earthquake intensity is 6～7 degree, and basic seismic design acceleration is 0.05g～0.10g; Framework wire maximum horizontal tension force≤60kN; Natural foundation bearing capacity >=180kpa.Also need according to some specifications, code calculate 500kV outlet conductor load, framework wind load, herringbone column's wind load, end support herringbone column wind load, frame girder wind load, terminal wind load etc., then design the framework basis meeting with it to satisfy the demand.If meet above all standard and needs, adopt rim of a cup basis in the prior art shown in Fig. 3, related data index is as follows:
Basis size: 5.0 × 5.0m, buried depth-3.2m
The suffered maximum pressure in basis (standard combination): Nk=1173kN, Vk=119kN, Mk=24kNm
The suffered maximum pull in basis (combination substantially): N=1280kN, V=132kN, M=33kNm
Wherein: checking of bearing capacity:
fa=180+(3.2-0.5)×1.0×18=229kPa
Pk=(Fk+Gk)/A=(1173+1632)/(5.0 × 5.0)=112kPa < fa/1.1=208kPa, meets the demands.
e=Mk/Nk=(24+119×2.9)/(1173+1632)=0.132＜5.0/6=0.83
Pkmax=(Fk+Gk)/A+Mk/W=(1173+1632)/(5.0 × 5.0)+6 × (24+119 × 2.9)/(5.0 × 5.02)=130kPa < 1.2fa/1.1=250kPa, meets the demands.
Resistance to plucking checking computations:
(G+G0)/KG=(23 × 38.34+18 × 41.66)/1.0=1632 > 1.1T=1.1 × 1280=1408kN, meets the demands.
Overturning or slip resistance analysis checking computations:
Overturning moment: M1=33+132 × 2.9+1280 × 2.5=3616kNm
Overturning or slip resistance analysis moment of flexure: M2=(23 × 38.34+18 × 41.66) × 2.5=4079 > 1.1 × 3616=3978kNm, meets the demands.
Therefore, size and the buried depth on conventional 500kV transformer station's outlet structure basis are larger, cause deep excavation project amount large.
As depicted in figs. 1 and 2, a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure described in the utility model, comprises framework steel pipe inverted Y-shaped column 8, the outlet structure steel pipe that framework steel pipe inverted Y-shaped column 8 is transformer station, be shaped as herringbone, for ground wire, electric wire support as lead-in wire.Also comprise left wing's edge 1, left rim of a cup basis 2, midfield contiguous block 3, right rim of a cup basis 4 and right flank edge 5, left wing's edge 1, midfield contiguous block 3 and right flank edge 5 are similar to the performance of H shaped steel, have the feature at light middle part, heavy two ends.Left rim of a cup basis 2 is provided with left rim of a cup 6, and right rim of a cup basis 4 is provided with right rim of a cup 7, and left rim of a cup 6 and right rim of a cup 7 are used for fixing respectively installs framework steel pipe inverted Y-shaped column 8.Left wing's edge 1, left rim of a cup basis 2, midfield contiguous block 3, right rim of a cup basis 4 are connected successively with right flank edge 5 and are concrete integral structure, utilize the direct placing of concrete of arrangement of reinforcement to be shaped, and form an entirety.Framework steel pipe inverted Y-shaped column 8 is separately fixed in left rim of a cup 6 and right rim of a cup 7, has so just formed for the basis of framework steel pipe inverted Y-shaped column 8 and has fixed.By this fixed form, realize the base integral of framework steel pipe inverted Y-shaped column 8 and arranged.8 two suspension columns one of laminating framework steel pipe inverted Y-shaped column draw the loading characteristic of a pressure, reach the feature of 8 two suspension column coactions of framework steel pipe inverted Y-shaped column.In this basis, left rim of a cup basis 2 and right rim of a cup basis 4 active forces for framework steel pipe inverted Y-shaped column 8, by arrangement of reinforcement by force transmission on left wing's edge 1 and right flank edge 5.
Framework steel pipe inverted Y-shaped column 8 can be separately fixed in left rim of a cup 6 and right rim of a cup 7 by concrete, directly at left rim of a cup 6 and the interior placing of concrete of right rim of a cup 7, convenient simply again.For framework steel pipe inverted Y-shaped column 8 and the junction of left rim of a cup 6 and right rim of a cup 7 are protected, can also comprise herringbone column's protective cap 9.Herringbone column's protective cap 9 is arranged on left rim of a cup 6 or right rim of a cup 7, can, for being enclosed within plastics or the rubber cover on framework steel pipe inverted Y-shaped column 8, can be also concrete protective cap, directly on the suspension column of framework steel pipe inverted Y-shaped column 8, carries out the cementation of fissures, and suspension column is protected.In work progress, in order to make more easily or to install and fix this basis, can also comprise bed course 11, bed course 11 is arranged on the below of left wing's edge 1, left rim of a cup basis 2, midfield contiguous block 3, right rim of a cup basis 4 and right flank edge 5 by concrete.In work progress, first on soil property environment, water out bed course 11 with concrete, then placing of concrete is fixed this basis in the above.
In order to meet index of correlation and the requirement of 500kV transformer station outlet structure, left wing's edge 1 is the same with the size of right flank edge 5, and it is long is 1.5 meters, be widely 4.6 meters, height and be 0.9 meter.Left rim of a cup basis 2 is the same with the size on right rim of a cup basis 4, and it is long is 2.3 meters, be widely 2.2 meters, height and be 2.2 meters.Midfield contiguous block 3 length be 2.9 meters, wide be that 2.2 meters, height are 1.5 meters.The height of bed course 11 is 0.1 meter.Above length is using the length of the rib of horizontal direction as length, and using the length of fore-and-aft direction rib as wide, the length of endways rib is as height.The size on this basis is 10.5 × 4.6m, buried depth-2.5m.
Wherein, checking of bearing capacity:
F1k=-978kN，V1k=101kN，M1k=25kN·m；F2k=1173kN，V2k=119kN，M2k=24kN·m；
By transforming, Fk=195kN, Mk=6083kNm, Gk=1588kN
fa=180+(2.5-0.5)×1.0×18=216kPa
e=Mk/Nk=6083/(195+1588)=3.412＞10.5/6=1.75
Pkmax=2 (Fk+Gk)/3la=2 × (195+1588)/(4.014 × 2.2+1.5 × 4.6)=227kPa < 1.2fa/1.1=236kPa, meets the demands.
Overturning or slip resistance analysis checking computations: F1=-1280kN, V1=132kN, M1=33kNm; F2=1519kN, V2=154kN, M2=31kNm
Overturning moment: M1=1280 × 7.73+132 × 2.2+33-1519 × 2.57+154 × 2.2+31=6684kNm
Overturning or slip resistance analysis moment of flexure: M2=(23 × 44.25+18 × 31.50) × 5.25/1.0=8320>1.1 × 6684=7352kNm, meets the demands.
Arrangement of reinforcement calculates:
Become rank place moment of flexure: M '=1280 × 4.03+132 × 2.2+33=5482kNm
AS=M’/(0.9fyh0)=11669m2
Select diameter 20mm reinforcing bar 110mm, two rows.
Formula basis, the edge of a wing of the present utility model and rim of a cup of the prior art basis, be as the criterion with 500kV transformer station outlet structure, compares as shown in table 1.
Table 1
In the time that reality is used, be first excavated to the corresponding degree of depth, then on weak soil environment, build out bed course 11, then build out left wing's edge 1, left rim of a cup basis 2, midfield contiguous block 3, right rim of a cup basis 4 and right flank edge 5 in the above.The suspension column of framework steel pipe inverted Y-shaped column 8 is arranged in left rim of a cup 6 and right rim of a cup 7, more fixing with concrete casting.
More than show and described 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; what in above-described embodiment and manual, describe is principle of the present utility model; under the prerequisite that does not depart 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 (6)
1. the formula basis, the edge of a wing for 500kV transformer station outlet structure, comprise framework steel pipe inverted Y-shaped column (8), it is characterized in that: also comprise left wing's edge (1), left rim of a cup basis (2), midfield contiguous block (3), right rim of a cup basis (4) and right flank edge (5), described left rim of a cup basis (2) is provided with left rim of a cup (6), described right rim of a cup basis (4) is provided with right rim of a cup (7), described left wing's edge (1), left rim of a cup basis (2), midfield contiguous block (3), right rim of a cup basis (4) is connected successively with right flank edge (5) and is concrete integral structure, described framework steel pipe inverted Y-shaped column (8) is separately fixed in left rim of a cup (6) and right rim of a cup (7).
2. a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure according to claim 1, is characterized in that: also comprise herringbone column's protective cap (9), described herringbone column's protective cap (9) is arranged on left rim of a cup (6) or right rim of a cup (7).
3. a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure according to claim 1, is characterized in that: described framework steel pipe inverted Y-shaped column (8) is separately fixed in left rim of a cup (6) and right rim of a cup (7) by concrete.
4. a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure according to claim 1, it is characterized in that: also comprise bed course (11), described bed course (11) is arranged on the below of left wing's edge (1), left rim of a cup basis (2), midfield contiguous block (3), right rim of a cup basis (4) and right flank edge (5) by concrete.
5. a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure according to claim 1, it is characterized in that: described left wing's edge (1) and the length of right flank edge (5) are 1.5 meters, are widely 4.6 meters, height and are 0.9 meter, described left rim of a cup basis (2) and the length on right rim of a cup basis (4) are 2.3 meters, are widely 2.2 meters, height and are 2.2 meters, the length of described midfield contiguous block (3) be 2.9 meters, wide be that 2.2 meters, height are 1.5 meters.
6. a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure according to claim 4, is characterized in that: the height of described bed course (11) is 0.1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014464.3U CN203684259U (en) | 2014-01-09 | 2014-01-09 | Flange type foundation for outgoing line framework of 500-kV transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420014464.3U CN203684259U (en) | 2014-01-09 | 2014-01-09 | Flange type foundation for outgoing line framework of 500-kV transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203684259U true CN203684259U (en) | 2014-07-02 |
Family
ID=51006182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420014464.3U Withdrawn - After Issue CN203684259U (en) | 2014-01-09 | 2014-01-09 | Flange type foundation for outgoing line framework of 500-kV transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203684259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696434A (en) * | 2014-01-09 | 2014-04-02 | 中国能源建设集团安徽省电力设计院 | Flange type foundation for outgoing line framework of 500kV transformer substation |
| CN105735341A (en) * | 2016-04-14 | 2016-07-06 | 中国能源建设集团陕西省电力设计院有限公司 | Mounting structure for cup foundation and support column and construction method |
-
2014
- 2014-01-09 CN CN201420014464.3U patent/CN203684259U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103696434A (en) * | 2014-01-09 | 2014-04-02 | 中国能源建设集团安徽省电力设计院 | Flange type foundation for outgoing line framework of 500kV transformer substation |
| CN103696434B (en) * | 2014-01-09 | 2016-06-15 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure |
| CN105735341A (en) * | 2016-04-14 | 2016-07-06 | 中国能源建设集团陕西省电力设计院有限公司 | Mounting structure for cup foundation and support column and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206298888U (en) | For the pin shoe jacket structure of offshore boosting station | |
| CN107938722B (en) | The field testing procedure that horizontal whirl-sprayed pile influences Vertical Bearing Capacity of Pile Foundation | |
| CN202730795U (en) | Pile supporting buttressed retaining wall structure | |
| CN203684259U (en) | Flange type foundation for outgoing line framework of 500-kV transformer substation | |
| CN103244134A (en) | Anti-floating ballasting method for shield tunnel under negative earthing condition | |
| CN205894049U (en) | A first pitching pile formula jacket structure for marine booster station | |
| Guo et al. | Distribution of ground stress on Puhe coal mine | |
| CN101187268A (en) | Height adjustable transmission iron tower capable of even precipitation | |
| CN202954610U (en) | Power pole heightening apparatus | |
| CN202470968U (en) | Surface soil erosion thickness measuring instrument | |
| CN104746522B (en) | A kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system | |
| CN205475305U (en) | Assembled board cable basis | |
| CN103696434A (en) | Flange type foundation for outgoing line framework of 500kV transformer substation | |
| CN103105308A (en) | In-situ test method for cross-fault buried pipeline | |
| CN203977421U (en) | Line of power dish | |
| CN104032720B (en) | It is applicable to test method and the device of deep supporting course bearing capacity | |
| CN205935883U (en) | Slope high cable termination field that varies | |
| CN208701691U (en) | A kind of steel platform for foundation pit construction | |
| CN203145025U (en) | Soft soil deep foundation pit supporting cat anchor structure | |
| CN204551489U (en) | A kind ofly oblique throwings that regulate of intelligent deformation can support support system for dredging silt matter soil district foundation ditch | |
| CN209260745U (en) | A kind of premixing high strength cement soil foundation | |
| CN209460039U (en) | A kind of prestressing force clamping plate | |
| CN204000819U (en) | A kind of horizontal load-bearing body top-driven type soil pressure is surveyed die device | |
| CN107938727B (en) | Longitudinal horizontal displacement meter anchoring end mounting structure and construction method | |
| CN202543985U (en) | Ship raft type test device for vertical compressive static loading test of foundation pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP ANHUI ELECTRIC POWE Free format text: FORMER NAME: CHINA ENERGY CONSTRUCTION GROUP ANHUI ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Hefei City, Anhui province Avenue, No. 369 Patentee after: Co., Ltd of China Energy Construction Group Anhui Electric Power Design Institute Address before: 230601 Hefei City, Anhui province Avenue, No. 369 Patentee before: Anhui Electric Power Design Institute, CEEC |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |