CN103696434B - A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure - Google Patents
A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure Download PDFInfo
- Publication number
- CN103696434B CN103696434B CN201410011237.XA CN201410011237A CN103696434B CN 103696434 B CN103696434 B CN 103696434B CN 201410011237 A CN201410011237 A CN 201410011237A CN 103696434 B CN103696434 B CN 103696434B
- Authority
- CN
- China
- Prior art keywords
- cup
- rim
- basis
- 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.)
- Active
Links
Landscapes
- Foundations (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to a kind of edge of a wing formula basis for 500kV transformer station outlet structure, compared with prior art solve difficulty of construction height, quantities is big, engineering cost is high defect. the present invention includes framework steel pipe inverted Y-shaped column (8), also include 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) and right flank edge (5) is sequentially connected with and be 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). the present invention forms overall stress, reasonable stress, saves material, improves efficiency of construction.
Description
Technical field
The present invention relates to transformer substation framework basic technology field, specifically a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure.
Background technology
Current 500kV transformer station outlet structure pulling force generally >=50kN, the height of outlet structure is at about 24m. By calculating the uplift force of general outlet structure herringbone column at more than 1000kN, it is stressed slightly larger than uplift force. As it is shown on figure 3,500kV outlet structure basis of the prior art adopts two independent rim of a cup bases, herringbone column inserts in two rim of a cup bases respectively, two bases pressurized and tensions respectively. When adopting two independent rim of a cup bases, key dimension size is generally by uplift force control, and when being left out buoyancy force of underground water, basis size should be generally 5.0m in length, width is 5.0m, buried depth is more than 3.0m.
Therefore, size and the buried depth on conventional 500kV transformer station outlet structure basis are relatively big, cause deep excavation project amount big. When outlet structure beam one side stress, two bases need to resist stress respectively, one, usual two bases another resistance to plucking of pressurized, basis size is generally controlled by the uplift force of inner side herringbone column, and key dimension is generally relatively big, concrete stress is not fully exerted. And basis volume of the prior art is relatively big, the link such as template construction, reinforcing bar binding, concrete cast is all taken a lot of work expense amount, and construction is difficulty comparatively. Neighbouring road, equipment Foundations soil supporting layer are also adversely affected by deep pit digging, cause that periphery structures foundation treatment engineering amount increases. How to develop a kind of framework basis with low cost, that reliability is high, difficulty of construction is low to have become as urgent need and solve the technical problem that.
Summary of the invention
The invention aims to solve the defect that in prior art, difficulty of construction is high, quantities is big, engineering cost is high, it is provided that a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure solves the problems referred to above.
To achieve these goals, technical scheme is as follows:
A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure, including framework steel pipe inverted Y-shaped column, also include 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 and right flank edge is sequentially connected with and be concrete integral structure, described framework steel pipe inverted Y-shaped column is separately fixed in left rim of a cup and right rim of a cup.
Also including 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 including bed course, described bed course is arranged on the lower section 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 be 1.5 meters, wide be 4.6 meters, height be 0.9 meter, the length on described left rim of a cup basic and right rim of a cup basis be 2.3 meters, wide be 2.2 meters, height be 2.2 meters, the length of described midfield contiguous block is 2.9 meters, wide be 2.2 meters, height be 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 invention, compared with prior art whole basis forms overall stress, reasonable stress, saves material, improves efficiency of construction. Two rim of a cup bases are connected by the present invention by midfield contiguous block, form an integral type foundation, having used for reference the construction features at H profile steel " weight light middle part, 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 pulling force that herringbone column one end is bigger. Globality of the present invention is strong, rigidity is big, foundation main wants resistance to compression and resistance to plucking to rely on the flange portions at both ends, it is assigned with herringbone column center of effort, resistance to compression and breakout capacity double above compared with two isolated footings, and the midfield contiguous block of centre and the top soil body thereof also assist in overall stress, the antidumping performance of basis entirety is compared with single basis and is greatly improved.
Accompanying drawing explanation
Fig. 1 is the structural front view of the present invention
Fig. 2 is the plan structure schematic diagram of the present invention
Fig. 3 is framework base structure schematic diagram of the prior art
Wherein, 1-left wing edge, 2-left rim of a cup basis, 3-midfield contiguous block, 4-right rim of a cup 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's protective cap, 10-ground, 11-bed course.
Detailed description of the invention
For making the architectural feature to the present invention and effect of reaching have a better understanding and awareness, coordinate detailed description in order to preferred embodiment and accompanying drawing, illustrate as follows:
As it is shown on figure 3, the support of framework steel pipe inverted Y-shaped column is adopted two rim of a cup bases to be supported by prior art, separately independent support. In 500kV transformer station, framework basis needs to meet relevant criterion and the needs of 500kV transformer substation framework: Framework Secure grade is one-level, and coefficient for importance of structure is 1.1; Fundamental wind pressure: 0.20～0.45kN/m2 is met in 50 years one, site district; 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 to according to some specifications, code calculate 500kV outgoing conductor load, framework wind load, herringbone column's wind load, end support herringbone column's wind load, frame girder wind load, terminal wind load etc., then design meet with it framework basis to meet needs. To meet above all standard and needs, adopt rim of a cup basis in the prior art shown in Fig. 3, then related data index is as follows:
Basis size: 5.0 × 5.0m, buried depth-3.2m
The suffered maximum pressure (standard combination) in basis: Nk=1173kN, Vk=119kN, Mk=24kN m
The suffered maximum pull in basis (substantially combination): N=1280kN, V=132kN, M=33kN m
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 requirement.
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 requirement.
Resistance to plucking checks:
(G+G0)/KG=(23 × 38.34+18 × 41.66)/1.0=1632 > 1.1T=1.1 × 1280=1408
KN, meets requirement.
Antidumping checks:
Overturning moment: M1=33+132 × 2.9+1280 × 2.5=3616kN m
Antidumping moment of flexure: M2=(23 × 38.34+18 × 41.66) × 2.5=4079 > 1.1 × 3616=3978kN m, meets requirement.
Therefore, size and the buried depth on conventional 500kV transformer station outlet structure basis are relatively big, cause deep excavation project amount big.
As depicted in figs. 1 and 2, a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure of the present invention, including framework steel pipe inverted Y-shaped column 8, framework steel pipe inverted Y-shaped column 8 is the outlet structure steel pipe of transformer station, it is shaped as herringbone, for ground wire, electric wire as leads support. Also including 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 profile 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 respectively intended to fixed installation 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 and right flank edge 5 is sequentially connected with and be concrete integral structure, utilize the direct placing concrete shaping of arrangement of reinforcement, 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, so just defines the basis for framework steel pipe inverted Y-shaped column 8 and fixes. By this fixed form, it is achieved that the basic integral arrangement of framework steel pipe inverted Y-shaped column 8. Laminating 8 two suspension columns one of 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, active force, for the active force of framework steel pipe inverted Y-shaped column 8, is delivered on left wing's edge 1 and right flank edge 5 by left rim of a cup basis 2 and right rim of a cup basis 4 by arrangement of reinforcement.
Not only 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 placing concrete in left rim of a cup 6 and right rim of a cup 7, simple but also facilitate. In order to the junction of framework steel pipe inverted Y-shaped column 8 with left rim of a cup 6 and right rim of a cup 7 is protected, it is also possible to include 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, it is possible to for being enclosed within plastics on framework steel pipe inverted Y-shaped column 8 or rubber cover, it is also possible to for concrete protective cap, directly carries out the cementation of fissures on the suspension column of framework steel pipe inverted Y-shaped column 8, suspension column is protected. In work progress, fixing this basis to make more easily or installing, it is also possible to include bed course 11, bed course 11 is arranged on the lower section 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. Work progress first environmentally waters out bed course 11 with concrete in soil property, then placing concrete fixes this basis herein 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, it is long be 1.5 meters, wide be 4.6 meters, height be 0.9 meter. Left rim of a cup basis is 2 the same with the size on right rim of a cup basis 4, it is long be 2.3 meters, wide be 2.2 meters, height be 2.2 meters. Midfield contiguous block 3 length is 2.9 meters, wide be 2.2 meters, height be 1.5 meters. The height of bed course 11 is 0.1 meter. Above length is as length using the length of the rib of horizontal direction, and using the length of fore-and-aft direction rib as width, the length of endways rib is as height. This basis be sized to 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 converting, Fk=195kN, Mk=6083kN m, 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 requirement.
Antidumping checks: F1=-1280kN, V1=132kN, M1=33kN m; F2=1519kN, V2=154kN, M2=31kN m
Overturning moment: M1=1280 × 7.73+132 × 2.2+33-1519 × 2.57+154 × 2.2+31=6684kN m antidumping moment of flexure: M2=(23 × 44.25+18 × 31.50) × 5.25/1.0=8320 > 1.1 × 6684=7352kN m, meets requirement.
Arrangement of reinforcement calculates:
Become rank place moment of flexure: M '=1280 × 4.03+132 × 2.2+33=5482kN m
AS=M’/(0.9fyh0)=11669m2
Select diameter 20mm reinforcing bar 110mm, two rows.
The edge of a wing formula of the present invention is basic and rim of a cup of the prior art basis, is as the criterion with 500kV transformer station outlet structure, compares as shown in table 1.
Table 1
When actually used, first it is excavated to the corresponding degree of depth, then environmentally builds out bed course 11 at weak soil, 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 herein 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, then fixes with concrete casting.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described. Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; simply principles of the invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within claimed the scope of the present invention. The protection domain of application claims 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, including framework steel pipe inverted Y-shaped column (8), it is characterized in that: also include 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) and right flank edge (5) is sequentially connected with and be 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, it is characterised in that: also including 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, it is characterised 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 include bed course (11), described bed course (11) is arranged on the lower section 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) be 1.5 meters, wide be 4.6 meters, height be 0.9 meter, the length of described left rim of a cup basis (2) and right rim of a cup basic (4) be 2.3 meters, wide be 2.2 meters, height be 2.2 meters, the length of described midfield contiguous block (3) is 2.9 meters, wide be 2.2 meters, height be 1.5 meters.
6. a kind of formula basis, the edge of a wing for 500kV transformer station outlet structure according to claim 4, it is characterised in that: the height of described bed course (11) is 0.1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011237.XA CN103696434B (en) | 2014-01-09 | 2014-01-09 | A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011237.XA CN103696434B (en) | 2014-01-09 | 2014-01-09 | A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103696434A CN103696434A (en) | 2014-04-02 |
| CN103696434B true CN103696434B (en) | 2016-06-15 |
Family
ID=50358084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410011237.XA Active CN103696434B (en) | 2014-01-09 | 2014-01-09 | A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103696434B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203060A (en) * | 1995-11-24 | 1997-08-05 | Toa Harbor Works Co Ltd | Last joint execution method of immersed tunnel |
| CN202090628U (en) * | 2011-05-13 | 2011-12-28 | 四川电力送变电建设公司 | Prefabricated enclosure wall for transformer substation |
| CN203684259U (en) * | 2014-01-09 | 2014-07-02 | 中国能源建设集团安徽省电力设计院 | Flange type foundation for outgoing line framework of 500-kV transformer substation |
-
2014
- 2014-01-09 CN CN201410011237.XA patent/CN103696434B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09203060A (en) * | 1995-11-24 | 1997-08-05 | Toa Harbor Works Co Ltd | Last joint execution method of immersed tunnel |
| CN202090628U (en) * | 2011-05-13 | 2011-12-28 | 四川电力送变电建设公司 | Prefabricated enclosure wall for transformer substation |
| CN203684259U (en) * | 2014-01-09 | 2014-07-02 | 中国能源建设集团安徽省电力设计院 | Flange type foundation for outgoing line framework of 500-kV transformer substation |
Non-Patent Citations (4)
| Title |
|---|
| 1000kV淮南变电站500kV构架设计优化;邱新刚等;《安徽建筑》;20121231(第6期);第161、246页 * |
| 新疆天华阳光农一师光伏电站项目光伏支架基础选型的探讨;商长征;《科技致富向导》;20130228(第4期);第198-199页 * |
| 格尔木200MWp并网光伏电站组件支架基础的选择;许建军;《陕西水利》;20130430(第2期) * |
| 浅谈变电站构支架形式;孔宪扬;《山西建筑》;20100831;第36卷(第24期);第88-89页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103696434A (en) | 2014-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203684259U (en) | Flange type foundation for outgoing line framework of 500-kV transformer substation | |
| CN103603361A (en) | Compressible device of deep foundation pit horizontal inner support | |
| CN206828906U (en) | A kind of temporary pavement bedding structure for Metro Deep Excavation | |
| CN103696434B (en) | A kind of formula basis, the edge of a wing for 500kV transformer station outlet structure | |
| CN206143823U (en) | Loess coombe district bridge substructure effect identification system | |
| CN103046572A (en) | Design method for composite protective plate foundation of electricity transmission pylon in mining area | |
| CN215630021U (en) | Highway bridge construction foundation ditch protector | |
| CN204199131U (en) | A kind of steel concrete groove type roadbed | |
| CN207017169U (en) | A kind of high-filled subgrade culvert off-loading structure | |
| CN201554033U (en) | Tower crane foundation for deep foundation ditch | |
| CN204570718U (en) | A kind of raft foundation with fluid pipeline path | |
| CN104563554B (en) | For the combined type lattice girder of 500kV transformer stations integrated form framework | |
| CN201169781Y (en) | Cap digging pit structure | |
| CN205662918U (en) | Wind amasss husky spiral piling bar structure | |
| CN207277221U (en) | A kind of board-like windbreak of L-type column | |
| CN107130643B (en) | A method of drainage system is added in built Tailings Dam | |
| CN204645800U (en) | A kind of power transmission tower | |
| CN113186970A (en) | Step type anchor rod foundation | |
| CN102733354B (en) | Pile-wall combined anti-sliding support managing structure | |
| CN203684258U (en) | Prefabricated concrete rod sleeve foundation | |
| CN206800435U (en) | A kind of chiasma type suspended deck structure vertically developed long and narrow solution cavity and pushed | |
| CN204386223U (en) | For the combined type lattice girder of 500kV transformer station integrated form framework | |
| CN105133676A (en) | Building inclination rectification construction method | |
| CN205543275U (en) | Tower grounding device based on three -dimensional equalizer ring | |
| TW201939879A (en) | Supporting device of elevated solar power generation facility including a pile unit and a support frame unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Hefei City, Anhui province Avenue, No. 369 Applicant after: Co., Ltd of China Energy Construction Group Anhui Electric Power Design Institute Address before: 230601 Hefei City, Anhui province Avenue, No. 369 Applicant before: Anhui Electric Power Design Institute, CEEC |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |