CN201730359U - 750 kV power transformation framework structure - Google Patents
750 kV power transformation framework structure Download PDFInfo
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- CN201730359U CN201730359U CN2010202729738U CN201020272973U CN201730359U CN 201730359 U CN201730359 U CN 201730359U CN 2010202729738 U CN2010202729738 U CN 2010202729738U CN 201020272973 U CN201020272973 U CN 201020272973U CN 201730359 U CN201730359 U CN 201730359U
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Abstract
The utility model relates to a 750 kV power transformation framework structure, comprising a plurality of framework columns which are linearly arranged are connected through framework beams; the framework columns adopt self-standing rectangular variable-section lattice columns; the framework beams adopt rectangular spatial steel truss beams; the power transformation framework structure further comprises a plurality of bus framework columns which are also linearly arranged; each bus framework column is connected with each framework column by connecting the top part with the bus framework beam; each framework column adopts a self-standing rectangular variable-section lattice column, and the bus framework beam adopts the rectangular spatial steel truss beam. By adopting the scheme, the requirement for bearing capacity of 750 kV power transmission and transformation can be completely met, and the power transformation framework structure is attractive in appearance and easy for construction and installation.
Description
Technical field
The utility model particularly relates to the Substation Truss Structures of 750KV about a kind of power transformation shelf structure.
Background technology
The 750KV electric pressure is the technology of transmission of electricity of a mature and reliable in the world, existing nearly 40 years ripe operating experience and device fabrication experience.From eighties of last century sixties, existing nearly ten countries have built up 750KV (735KV, 765KV) power transmission and transformation system.
The Substation Truss Structures pattern of present domestic 220KV, 330KV, 500KV grade mainly contains following several: welding common steel tube structure, high tensile steel tube post and beam structure, formed steel construction, thin wall centrifugal steel concrete pipe structure, encased structures, ring section steel reinforced concrete pole structure.According to the distance of the different electric pressure live wires of electric specialty to ground and other structure requirement maintenance, the span of 750KV power transformation framework reaches 45m, lead hanging wire point height 42m, and ground wire hanging wire point height 58m, and also horizontal loading is big.To large span like this, high particle, the big flexibility structure that load is big, if still adopt present 500KV power transformation framework welding common steel tube structural shape commonly used (this structure normally is made up of welding common steel tube herringbone column and lattice girder steel), have following technological deficiency:
(1) for satisfying ultimate limit state and serviceability limit state checking computations requirement, the framework post need adopt large diameter steel pipe (about about 800), and rolled steel dosage is big, and technical-economic index is low.
(2) the framework post adopts large diameter steel pipe, and present domestic process technology compliance be can not determine, is not easy to the processing buying, and difficulty is installed in transportation.
(3) the framework post adopts large diameter steel pipe, and construction profile is sturdy, and is not attractive in appearance.
The utility model content
The utility model has proposed employing lattice steel tube tower shelf structure for the problem of the type selecting difficulty that solves 750KV power transformation shelf structure.
To achieve these goals, the technical solution adopted in the utility model is: a kind of 750KV Substation Truss Structures, comprise some framework posts, each framework post is arranged in a linear, be connected by frame girder between each framework post, wherein the framework post adopts the self-supporting rectangle to become section lattice post, and frame girder adopts coffin steel truss beam; Also comprise some bus framework posts, each bus framework post is arranged in a linear equally, each bus framework post links to each other with each framework post by the bus frame girder, and bus framework post adopts the self-supporting rectangle to become section lattice post, and the bus frame girder adopts coffin steel truss beam.
It is the trapezoidal shape supporting structure with rectangle opposite face that steel pipe constitutes that described self-supporting rectangle becomes section lattice post.
Described self-supporting rectangle becomes section lattice post and has the support portion, and this support portion is the trapezoidal shape supporting structure with rectangle opposite face that is made of steel pipe.
Described self-supporting rectangle change section lattice post further includes beam and connects portion and tip, this beam portion of connecing is the square supporting structure for the lattice girder connection that is made of steel pipe, this tip is the positive trapezoidal shape support that is made of steel pipe, and it is provided with ground wire hanging wire point.
Wherein two relative faces of described support portion are rectangular configuration, and two other relative face is a trapezium structure.
Described coffin steel truss beam is the coffin structure with four rectangular surfaces that is made of steel pipe, and its cross section is a square, and this square is identical with the square size that beam meets portion.
The beneficial effects of the utility model are: the lattice support that utilizes steel pipe to form has substituted existing herringbone column's framework, has strengthened the bearing capacity of equipment, can satisfy the power transmission and transformation requirement of 750KV.In addition, adopting opposite face is the trapezoidal shape structure of rectangle, attractive in appearance and be easy to construction and installation.
Description of drawings
Fig. 1 is the phantom drawing of 750KV Substation Truss Structures of the present utility model;
Fig. 2 a～Fig. 2 c is master (back) view, lateral view and the expanded view that the self-supporting rectangle becomes section lattice post in the utility model;
Fig. 3 a～Fig. 3 c is master (back) view, lateral view and the expanded view of coffin steel truss beam in the utility model.
The specific embodiment
See also shown in Figure 1ly, a kind of 750KV Substation Truss Structures of the utility model comprises some framework posts 1, and the arrangement that is in line of each framework post 1 is connected by frame girder 2 between each framework post 1, and the height of the setting of each frame girder 2 is lower than the height of framework post 1.In addition, also comprise some bus framework posts 3, the arrangement that is in line equally of each bus framework post 3, the height of each bus framework post 3 is lower than the height of frame girder 2, and each bus framework post 3 links to each other with each framework post 1 by top connection bus frame girder 4.Each framework post 1 top is provided with ground terminal 5.
The span of 750KV power transformation framework requires to reach 45m, and lead hanging wire point requirement for height reaches 42m, ground wire hanging wire point height 58m.So the height of framework post 1 is at least 58m, ground terminal 5 is arranged on the framework post 1 58m place as ground wire hanging wire point (be denoted as among the figure hanging point height); Frame girder 2 is arranged on about 42m zone on the framework post 1, and lead hanging wire point (being denoted as the hanging point height among the figure) is set in the 42m place of framework post; Air line distance between each framework post 1 is 45m.Span between framework post 1 and the bus framework post 3 is 43.5m, the height of bus framework post 3 is at least 27m, bus frame girder 4 is arranged at the zone about the 27m height, and the 27m place is provided with bus lead hanging wire point (being denoted as female hanging point height among the figure) on bus framework post 3.
Framework post 1 and bus framework post 3 adopt the self-supporting rectangle to become section lattice post in the 750KV power transformation shelf structure of the present utility model, and frame girder 2 and bus frame girder 4 adopt coffin steel truss beam, and each connects rod member and adopts the mode that is articulated and connected.The self-supporting rectangle becomes the three-dimensional pylon structure that section lattice post is made up of steel pipe, is a kind of space truss system, and adopting this title definition mainly is to be different from another structural shape in the switchyard structure " combined type cancelled structure ".
See also Fig. 2 a～Fig. 2 c, it becomes master (back) view, lateral view and the expanded view of section lattice post for the self-supporting rectangle, the self-supporting rectangle becomes the tower structure formed of section lattice post by four supporting surfaces, includes the first supporting surface A, the second supporting surface B, the 3rd supporting surface C and the 4th supporting surface D.Wherein, the first supporting surface A is identical with the 3rd supporting surface C-structure on the other side, and the first supporting surface A is made of the first lattice column mobile jib 7 and the second lattice column mobile jib 8 and some lattice column web members of being arranged between two lattice column mobile jibs.In like manner, the second supporting surface B is identical with the 4th supporting surface D on the other side, and the second supporting surface B is by the second lattice column mobile jib 8 and the 3rd lattice column mobile jib 9 and be arranged at two lattice columns some lattice column web members between being responsible for and constitute.The 4th supporting surface D is by the 4th lattice column mobile jib 10 and the first lattice column mobile jib 7 and be arranged at two lattice columns some lattice column web members between being responsible for and constitute.The lattice column web member in the utility model and the set-up mode of lattice column mobile jib and form of the prior art are similarly, are not described in detail at this.Focus on, all mobile jib and web members that constitute lattice column mobile jib and lattice column web member all adopt steel pipe to realize that the specification of mobile jib is greater than web member, and lattice connect the position and all adopt bolt to connect.
This self-supporting rectangle become section lattice post from bottom to top by function be divided into support portion 11, beam connects portion 12 and tip 13, beam meets portion 12 and is connected for lattice girder by the square supporting structure that mobile jib and web member constitute, tip 13 is the positive trapezoidal shape supports that are made of mobile jib and web member, ground wire hanging wire point is set on it, is provided with for ground wire hanging wire point.And wherein two relative faces of support portion 11 are rectangular configuration, two other relative face is a trapezium structure, in the present embodiment, support portion 11 is a rectangular configuration in the part of the first supporting surface A and the 3rd supporting surface C, is trapezium structure in the part of the second supporting surface B and the 4th supporting surface D.Trapezium structure can be realized self-supporting, substitutes existing gable column, and the whole steel pipe that adopts has satisfied the requirement of equipment to bearing capacity.Certainly, the function of the bus frame girder 3 in the utility model is only for hanging bus, so the structure that support portion that only needs to adopt the self-supporting rectangle to become section lattice post and beam meet portion gets final product.So the self-supporting rectangle in the technical program becomes the trapezoidal shape supporting structure that section lattice post also can be described as having the rectangle opposite face.Certainly, middle girder need be set on lattice column 1 equally meet portion 14 and be connected with bus frame girder 4, this middle girder connects to have a plurality of identical square supporting structures with rectangular surfaces in the trapezoidal faces of portion 14 and connects for lattice girders.
See also Fig. 3 a～Fig. 3 c, it is master (back) view, lateral view and the expanded view of coffin steel truss beam, this coffin steel truss beam is the coffin structure with four rectangular surfaces that is made of steel pipe, its cross section is a square, this square is identical with the square size that beam meets portion, with convenient butt joint.Its body frame structure is four chord members, and is arranged in the some web members formation coffin structures between each chord member, and chord member and web member all adopt steel pipe, and bolt connects.Lattice column adopts flexible flange to be connected with lattice girder master material joints in the technical program.
Lattice post, the major-minor material of Steel Space Truss beam generally can be selected two kinds in steel pipe or angle steel for use, the technical program is all selected steel pipe for use, mainly be to consider: 1) because the main design load of power transformation framework is a wind load from following several respects, steel pipe blast bodily form coefficient is generally 0.6, angle steel bodily form coefficient 1.3, when the angle steel structure adopt to be intersected oblique material, the area that keeps out the wind was greater than steel pipe single syncline material, so steel tubular structure blast bodily form coefficient is below 50% of angle steel structure; 2) main material and space truss chord member are the uniaxial force member in the lattice post, and in each main shaft calculated length unanimity of each internode, steel pipe moment of inertia of cross-section isotropism makes that design is the most reasonable; 3) under the situation that section area equates, the radius of gyration of pipe is bigger by about 20% than angle steel, therefore adopts steel tube component to have remarkable advantages as the bearing structure of framework with respect to angle iron component in the power transformation framework.According to existing power transmission sequence tower design experiences, steel tube tower can reduce about 10～20% than angle steel tower consumption, uses the steel tubular structure advantage more obvious to big load high tower.
Adopting finite element structural calculation analytical applications software STAAD/GHINA (2005 editions) that 750KV power transformation framework has been carried out the space analysis of Integral Structure calculates; display structure element bearing capacity ultimate limit state and serviceability limit state checking computations as a result all can be satisfied code requirement; technical-economic index is more excellent; so submit utility application to, with the protection technique scheme.
Claims (8)
1. a 750KV Substation Truss Structures is characterized in that, comprises some framework posts, each framework post is arranged in a linear, be connected by frame girder between each framework post, wherein the framework post adopts the self-supporting rectangle to become section lattice post, and frame girder adopts coffin steel truss beam.
2. 750KV Substation Truss Structures as claimed in claim 1, it is characterized in that, also comprise some bus framework posts, each bus framework post is arranged in a linear equally, each bus framework post links to each other with each framework post by the bus frame girder, bus framework post adopts the self-supporting rectangle to become section lattice post, and the bus frame girder adopts coffin steel truss beam.
3. 750KV Substation Truss Structures as claimed in claim 1 or 2 is characterized in that, it is the trapezoidal shape supporting structure with rectangle opposite face that steel pipe constitutes that this self-supporting rectangle becomes section lattice post.
4. 750KV Substation Truss Structures as claimed in claim 3 is characterized in that, this self-supporting rectangle becomes section lattice post and has the support portion, and this support portion is the trapezoidal shape supporting structure with rectangle opposite face that is made of steel pipe.
5. 750KV Substation Truss Structures as claimed in claim 4 is characterized in that, this self-supporting rectangle change section lattice post further includes beam and connects portion and tip.
6. 750KV Substation Truss Structures as claimed in claim 5 is characterized in that, this beam portion of connecing is the square supporting structure for the lattice girder connection that is made of steel pipe, and this tip is the positive trapezoidal shape support that is made of steel pipe, and it is provided with ground wire hanging wire point.
7. 750KV Substation Truss Structures as claimed in claim 6 is characterized in that, wherein two relative faces of this support portion are rectangular configuration, and two other relative face is a trapezium structure.
8. 750KV Substation Truss Structures as claimed in claim 1 or 2, it is characterized in that, this coffin steel truss beam is the coffin structure with four rectangular surfaces that is made of steel pipe, and its cross section is a square, and this square is identical with the square size that beam meets portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202729738U CN201730359U (en) | 2010-07-23 | 2010-07-23 | 750 kV power transformation framework structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202729738U CN201730359U (en) | 2010-07-23 | 2010-07-23 | 750 kV power transformation framework structure |
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| Publication Number | Publication Date |
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| CN201730359U true CN201730359U (en) | 2011-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202729738U Expired - Lifetime CN201730359U (en) | 2010-07-23 | 2010-07-23 | 750 kV power transformation framework structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906896A (en) * | 2010-07-23 | 2010-12-08 | 中国电力工程顾问集团华北电力设计院工程有限公司 | 750KV power-transformation framework structure |
| CN103485540A (en) * | 2013-09-27 | 2014-01-01 | 国家电网公司 | Method for cable-stayed reinforcement of convertor station direct-current filter suspension steel framework and steel framework |
| CN103485572A (en) * | 2013-09-27 | 2014-01-01 | 国家电网公司 | Method for cable type reinforcement of convertor station direct-current filter suspension steel framework and steel framework |
-
2010
- 2010-07-23 CN CN2010202729738U patent/CN201730359U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906896A (en) * | 2010-07-23 | 2010-12-08 | 中国电力工程顾问集团华北电力设计院工程有限公司 | 750KV power-transformation framework structure |
| CN103485540A (en) * | 2013-09-27 | 2014-01-01 | 国家电网公司 | Method for cable-stayed reinforcement of convertor station direct-current filter suspension steel framework and steel framework |
| CN103485572A (en) * | 2013-09-27 | 2014-01-01 | 国家电网公司 | Method for cable type reinforcement of convertor station direct-current filter suspension steel framework and steel framework |
| CN103485540B (en) * | 2013-09-27 | 2015-07-22 | 国家电网公司 | Method for cable-stayed reinforcement of convertor station direct-current filter suspension steel framework and steel framework |
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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 POWER ENGINEERING CONSULTING GROUP NORTH CHI Free format text: FORMER NAME: NORTH CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100120 Beijing city Xicheng District Street No. 24 Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100120 Beijing city Xicheng District Street No. 24 Patentee before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110202 |