CN111749513A - End stay post and many even frameworks of transformer framework - Google Patents
End stay post and many even frameworks of transformer framework Download PDFInfo
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- CN111749513A CN111749513A CN202010763061.9A CN202010763061A CN111749513A CN 111749513 A CN111749513 A CN 111749513A CN 202010763061 A CN202010763061 A CN 202010763061A CN 111749513 A CN111749513 A CN 111749513A
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- column
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- herringbone
- bracing
- columns
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- 230000009466 transformation Effects 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 230000003187 abdominal effect Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
- E04H5/04—Transformer houses; Substations or switchgear houses
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an end bracing column and a multi-span framework of a power transformation framework, which comprise end bracing herringbone columns, diagonal braces and diagonal web members; the top ends of the end brace herringbone columns are connected with the top ends of the inclined struts to form a triangular cone structure with an isosceles triangle section, the inclined web members are arranged between the end brace herringbone columns and the inclined struts and are arranged in a zigzag shape from bottom to top, a plane truss formed by the column limbs of the end brace herringbone columns, the inclined struts and the inclined web members is formed in an inclined plane where the two column limbs of the end brace herringbone columns and the inclined struts are located, and then the plane truss and the end brace herringbone columns jointly form a triangular cone space lattice type end brace column. The arrangement form improves the hyperstatic times of the structure, can obviously enhance the integral and local bending rigidity and torsional rigidity of the end brace and the stability of the upright column, effectively resists the local horizontal action from the middle part of the column body of the framework, improves the stress states of the end brace herringbone column, the end brace column and the whole framework, and further achieves the purposes of optimizing the cross section sizes of the end brace column and the end brace herringbone column and improving the safety of the structure.
Description
Technical Field
The invention relates to the field of electric power facility construction, in particular to an end support column and a multi-span framework of a power transformation framework.
Background
The transformer framework is a structure commonly used in a transformer substation and a converter station, along with the gradual expansion of the construction scale, the span, the total length, the single scale, the multilayer outgoing line and other application examples of the framework are gradually increased, the structural stress is gradually complicated, and new challenges are brought to structural arrangement, structural stress and analysis.
As shown in figure 1, the top of a normal end bracing column 1 is positioned at the top of the whole framework and is connected with a beam end of the framework, the horizontal action of the beam end of the framework is directly transmitted to a foundation through the end bracing, the internal force of the end bracing is mainly axial internal force, the force transmission is direct, and the additional internal force is small.
The multi-layer shelf with the side-out shown in fig. 2 is difficult to lower the end brace to the same height as the busbar beam because the single pipe end brace cannot be connected to the herringbone post at the height of the busbar beam. For a framework with lateral outgoing lines, the height of a general bus framework is low, the position of an outgoing line beam is high, a multi-span bus beam acts on the middle upper part of an end support herringbone column, from the structural stress angle, a bus beam directly acts on the middle upper part of the framework to cause a large additional internal force, the structural stress is not good, the additional bending moment generated by local horizontal action cannot be ignored, the structural arrangement and the stress mode thoroughly change the stress state of an original end support rod mainly based on axial force and a relatively direct force transmission mode, the additional internal force is large, and the stress of a rod piece and the design and the checking calculation of a connecting node are seriously influenced. Meanwhile, under the arrangement condition, because the overall rigidity and the local rigidity outside the single end support plane are smaller, the local deformation of the end support column is obviously increased under the action of middle horizontal load, as shown in fig. 3, the local load action point and the root bending moment of the end support column are obviously larger than the direct force transmission condition shown in the attached drawing 1, and the stress on the rod piece is unfavorable. Therefore, there is a need for improved structural arrangements that enhance the local stiffness of the structure in order to improve the mechanical properties of the structure.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an end bracing column and a multi-span steel pipe framework of a power transformation framework, wherein a diagonal web member is added between a diagonal brace and an end bracing herringbone column limb to form a stable plane truss stress system consisting of the end bracing herringbone column limb, the diagonal brace and the diagonal web member, and finally the end bracing column and the end bracing herringbone column jointly form a triangular cone space.
The invention is realized by the following technical scheme:
an end bracing column of a power transformation framework comprises an end bracing herringbone column, an inclined bracing and a plurality of inclined abdominal bracing;
the top ends of the end brace herringbone columns are connected with the top ends of the end brace columns to form a conical structure with a triangular end face, the inclined abdominal braces are arranged between the end brace herringbone columns and the inclined braces from bottom to top, and a space formed by the end brace herringbone columns and the inclined braces is divided into a plurality of continuous lattice spaces with triangular structures from bottom to top.
Preferably, the inclined abdominal support is of a triangular structure, one corner of the inclined abdominal support is connected with the inclined support, the other two corners of the inclined abdominal support are respectively connected with the two column limbs of the end support herringbone column, and the inclined support is obliquely arranged.
Preferably, the diagonal web bracing is formed by connecting three diagonal web rods end to form a triangular annular closed structure.
Preferably, the plurality of diagonal abdominal stretchers are sequentially connected end to end from bottom to top and distributed in a zigzag manner.
Preferably, the upper end and the lower end of the diagonal abdominal brace are respectively provided with a horizontal abdominal brace, and the horizontal abdominal brace is respectively connected with the end herringbone column and the end herringbone column.
Preferably, the horizontal web bracing is composed of three horizontal web rods which are connected end to form a triangular annular closed structure.
Preferably, the inclined abdominal struts have the same inclination direction, and are inclined from bottom to top towards one side of the end strut.
A multi-span framework comprises herringbone columns, bus cross beams and end bracing columns;
the herringbone columns and the end bracing columns are arranged at intervals in a straight line shape, the end bracing columns are positioned at the end parts of the multi-span framework, and a bus beam is respectively lapped on the adjacent herringbone columns and the end bracing columns.
Preferably, the female cross beam is positioned at three-quarters height of the herringbone columns and the end bracing columns.
Preferably, one end brace is arranged on each side of the multi-span framework.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the end bracing column of the power transformation framework, the diagonal web brace is arranged between the end bracing herringbone column and the diagonal brace to form the triangular-cone-space lattice type end bracing column, the arrangement form improves the statically indeterminate times of the structure, can obviously enhance the integral and local bending rigidity and torsional rigidity of the end bracing column and the stability of the upright column, effectively resists the local horizontal action from the middle part of the column body, improves the internal force and stress state of the end bracing herringbone column and the diagonal brace, further optimizes the cross section sizes of the diagonal brace and the end bracing herringbone column, and improves the structural safety.
Drawings
FIG. 1 is a schematic diagram of a conventional single end brace structure;
FIG. 2 is a schematic view of the deformation of the end brace when the cross beam acts on the middle portion;
FIG. 3 is a diagram of the internal force distribution after deformation of the end brace when the cross beam acts on the middle portion;
FIG. 4 is a schematic structural view of an end brace of the present invention;
FIG. 5 is a perspective view of the end brace of FIG. 4;
FIG. 6 is a schematic structural view of an end brace according to another embodiment of the present invention;
fig. 7 is a perspective view of the end brace of fig. 6 of the present invention.
In the figure: 1. end bracing columns; 2. a bus bar cross beam; 3. a herringbone column; 4. bracing; 5. a horizontal web member; 6. the herringbone columns are supported at the ends; 7. a diagonal web member.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 4-7, an end brace for a power transformation framework includes an end brace herringbone 6, a diagonal brace 4 and a diagonal web member 7.
The top end of the end brace herringbone column 6 is connected with the top end of the inclined strut 4 to form a triangular cone structure with an isosceles triangle section, the inclined web member 7 is arranged between the end brace herringbone column 6 and the inclined strut 4 and is arranged in a zigzag shape from bottom to top, two column limbs of the end brace herringbone column 6 respectively form two symmetrical plane trusses with the inclined strut 4 and the inclined web member 7, and the two symmetrical plane trusses and the end brace herringbone column 6 jointly form the triangular cone space lattice type end brace column.
The diagonal web members are arranged between the end support herringbone columns 6 and the diagonal braces 4, stable plane truss stress systems are formed in the inclined planes where the column limbs of the end support herringbone columns and the diagonal braces are located, and finally the end support herringbone columns and the end support herringbone columns form a triangular cone space lattice type end support column.
One end of the diagonal web member is connected with the diagonal brace 4, the other end of the diagonal web member is connected with a column limb of the end brace herringbone column 6, a truss stress state is formed in a diagonal plane, after the diagonal web member is added, the internal force of the diagonal brace and the end brace herringbone column is readjusted to return to a state of mainly bearing an axial force, the stress state of the rod piece is optimized, the internal force of the node and the rod piece is obviously reduced, meanwhile, the top end of the end brace column is connected in a high position, the top of the end brace column is prevented from being connected with the herringbone column in the height of the bus beam, and the problem that the connection cannot be achieved.
The plurality of diagonal web members are arranged in a zigzag shape from bottom to top, and the axes of two adjacent diagonal members are converged at one point on the axis of the end support herringbone column and the axis of the diagonal support to form a truss structure.
The two ends of the diagonal web member 7 are respectively connected with the end support herringbone column 6 and the diagonal support 4 by bolts, and the top of the diagonal support 4 and the top of the end support herringbone column 6 are connected by a conventional pin shaft.
Example 1
Referring to fig. 6 and 7, a horizontal web member is added to this embodiment, and the remaining structure is unchanged, as follows.
An end bracing column of a power transformation framework comprises an end herringbone column 6, an inclined strut 4, an inclined web member 7 and a horizontal web member 5.
The diagonal web members 7 and the horizontal web members 5 are alternately arranged between the end brace herringbone columns 6 and the diagonal braces 4, the lower parts of the bottommost diagonal web members are connected with the roots of the end brace herringbone columns, and the upper ends of the diagonal web members are connected with the diagonal braces 4.
The diagonal web members 7 and the horizontal web members 5 are arranged in a zigzag manner, and the axes of the two adjacent diagonal members are converged at one point on the axis of the end support herringbone column and the axis of the diagonal support to form a truss structure.
A multi-span framework comprises the herringbone columns 3, the bus bar cross beams 2 and the end bracing columns.
A plurality of herringbone columns 3 and end bracing columns are arranged at intervals in a straight line shape, the end bracing columns are positioned at the end parts of the framework, and a bus bar cross beam 2 is respectively lapped on the adjacent herringbone columns 3, the herringbone columns 3 and the lattice type end bracing columns.
The bus bar crossbeam 2 is positioned at a certain position of the middle upper parts of the herringbone columns 3 and the end bracing columns.
In order to further improve the stability of the multi-span framework, two sides of the multi-span framework can be uniformly provided with an end brace.
The multi-span framework effectively improves the stress performance of the structure by changing the arrangement form of the end support columns on the premise of not changing the relative position relation of the traditional inclined support and the cross beam; compared with the conventional form, only the diagonal web members are added, the overall arrangement of the existing steel pipe herringbone column structure is not changed on the whole, and the steel pipe herringbone column structure still belongs to the steel pipe herringbone column structure. This scheme is through increasing the web member, is showing the structural rigidity who has strengthened the end brace, has reduced additional internal force, has optimized the structural internal force, has strengthened the overall safe level of structure, and the end brace simple structure.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (10)
1. An end bracing column of a power transformation framework is characterized by comprising an end bracing herringbone column (6), an inclined brace (4) and a plurality of inclined web braces;
the top end of the end brace herringbone column (6) is connected with the top end of the end brace column to form a conical structure with a triangular end face, the inclined web braces are arranged between the end brace herringbone column (6) and the inclined braces from bottom to top, and the space enclosed by the end brace herringbone column (6) and the inclined braces is divided into a plurality of continuous lattice spaces with triangular structures from bottom to top.
2. An end bracing column of a power transformation framework as claimed in claim 1, characterized in that the diagonal web bracing is a triangular structure, one corner of the diagonal web bracing is connected with the diagonal bracing (4), the other two corners are respectively connected with two column limbs of the end bracing herringbone column (6), and the diagonal bracing is arranged in an inclined manner.
3. A power transformation frame end brace as claimed in claim 1, characterized in that said diagonal web brace is formed by three diagonal web members (7) connected end to form a triangular ring-shaped closed structure.
4. A power transformation frame end brace as claimed in claim 1, wherein said diagonal web braces are arranged end to end in a zigzag pattern from bottom to top.
5. A power transformation frame end brace according to claim 1, wherein said diagonal web braces have a horizontal web brace at each of their upper and lower ends, said horizontal web braces being connected to said end herringbone braces and said end brace herringbone braces.
6. A power transformation frame end brace as claimed in claim 5, characterized in that said horizontal web brace is formed by three horizontal web members (5) connected end to form a triangular ring-shaped closed structure.
7. A power transformation frame end brace as claimed in claim 5, characterized in that said diagonal braces are inclined in the same direction, from bottom to top to one side of the end brace (4).
8. A multiple span framework comprising herringbone columns (3), bus bar cross-beams (2) and end bracing columns according to any of claims 1-7;
the herringbone columns (3) and the end bracing columns are arranged at intervals in a straight line shape, the end bracing columns are positioned at the end parts of the multi-span framework, and a bus bar cross beam (2) is respectively lapped on the adjacent herringbone columns (3) and the end bracing columns.
9. A multiple span steel tubular frame according to claim 8 wherein the female cross member (2) is located at three quarters of the height of the herringbone post (3) and the end bracing post.
10. The multi-span steel pipe frame of claim 8, wherein one end brace is disposed on each side of the multi-span frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763061.9A CN111749513A (en) | 2020-07-31 | 2020-07-31 | End stay post and many even frameworks of transformer framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763061.9A CN111749513A (en) | 2020-07-31 | 2020-07-31 | End stay post and many even frameworks of transformer framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111749513A true CN111749513A (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010763061.9A Pending CN111749513A (en) | 2020-07-31 | 2020-07-31 | End stay post and many even frameworks of transformer framework |
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| Country | Link |
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| CN (1) | CN111749513A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201924625U (en) * | 2010-12-31 | 2011-08-10 | 广东省电力设计研究院 | Framework for converter transformer small busbars of +/-800kV converter substation |
| WO2013083802A2 (en) * | 2011-12-07 | 2013-06-13 | Dong Energy Wind Power A/S | Support structure for wind turbine and method of mounting such support structure |
| CN204060109U (en) * | 2014-07-08 | 2014-12-31 | 甘肃省电力设计院 | 750kV transformer station concrete filled steel tube framework |
| CN104481178A (en) * | 2014-12-15 | 2015-04-01 | 中国能建集团装备有限公司南京技术中心 | Composite material substation structure |
| CN204386242U (en) * | 2014-12-31 | 2015-06-10 | 中国电力工程顾问集团西南电力设计院有限公司 | For the combined type truss column of 500kV transformer station |
| CN205135076U (en) * | 2015-11-20 | 2016-04-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Change of current of extra -high voltage current conversion station becomes inlet wire rectangle lattice formula " pi " type framework |
| CN205935883U (en) * | 2016-05-25 | 2017-02-08 | 贵州电力设计研究院 | Slope high cable termination field that varies |
| CN206888612U (en) * | 2017-06-08 | 2018-01-16 | 中国电力工程顾问集团华北电力设计院有限公司 | A kind of new 500KV combined frame works |
| CN207974590U (en) * | 2017-08-25 | 2018-10-16 | 国网江苏省电力公司经济技术研究院 | A kind of combined frame work of Mixed Architecture |
| CN212562677U (en) * | 2020-07-31 | 2021-02-19 | 中国电力工程顾问集团西北电力设计院有限公司 | Lattice type end bracing column and multi-span steel pipe framework |
-
2020
- 2020-07-31 CN CN202010763061.9A patent/CN111749513A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201924625U (en) * | 2010-12-31 | 2011-08-10 | 广东省电力设计研究院 | Framework for converter transformer small busbars of +/-800kV converter substation |
| WO2013083802A2 (en) * | 2011-12-07 | 2013-06-13 | Dong Energy Wind Power A/S | Support structure for wind turbine and method of mounting such support structure |
| CN204060109U (en) * | 2014-07-08 | 2014-12-31 | 甘肃省电力设计院 | 750kV transformer station concrete filled steel tube framework |
| CN104481178A (en) * | 2014-12-15 | 2015-04-01 | 中国能建集团装备有限公司南京技术中心 | Composite material substation structure |
| CN204386242U (en) * | 2014-12-31 | 2015-06-10 | 中国电力工程顾问集团西南电力设计院有限公司 | For the combined type truss column of 500kV transformer station |
| CN205135076U (en) * | 2015-11-20 | 2016-04-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Change of current of extra -high voltage current conversion station becomes inlet wire rectangle lattice formula " pi " type framework |
| CN205935883U (en) * | 2016-05-25 | 2017-02-08 | 贵州电力设计研究院 | Slope high cable termination field that varies |
| CN206888612U (en) * | 2017-06-08 | 2018-01-16 | 中国电力工程顾问集团华北电力设计院有限公司 | A kind of new 500KV combined frame works |
| CN207974590U (en) * | 2017-08-25 | 2018-10-16 | 国网江苏省电力公司经济技术研究院 | A kind of combined frame work of Mixed Architecture |
| CN212562677U (en) * | 2020-07-31 | 2021-02-19 | 中国电力工程顾问集团西北电力设计院有限公司 | Lattice type end bracing column and multi-span steel pipe framework |
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