CN210608472U - A frame with double A-pillars and a double-layer arrangement - Google Patents
A frame with double A-pillars and a double-layer arrangement Download PDFInfo
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- CN210608472U CN210608472U CN201921697664.2U CN201921697664U CN210608472U CN 210608472 U CN210608472 U CN 210608472U CN 201921697664 U CN201921697664 U CN 201921697664U CN 210608472 U CN210608472 U CN 210608472U
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Abstract
本实用新型公开了一种采用双拼A字柱且高低双层布置的构架，包括多个人字柱和多个构架梁；单低人字柱依次排列，双拼人字柱与单高人字柱或双拼人字柱配合连接，形成双层单元，双层单元穿插排列在单低人字柱的队列中；相邻的两个单低人字柱上端通过低构架梁连接成一体，相邻的单低人字柱上端和双拼人字柱或单高人字柱的下连接部通过低构架梁连接成一体，双层单元的下连接部通过低构架梁连接，上连接部通过高构架梁连接。本实用新型将双拼人字柱结构体系作为构架的抗侧力构件，增大了构架整体的侧向刚度，有效控制了构架的变形，同时减少了端撑柱的布置，节约了占地面积，且通过中间跨采用高低双层布置的方式，有效避免发生事故，更加安全。
The utility model discloses a frame with double-spliced A-shaped columns and a double-layered arrangement of heights and lows, which comprises a plurality of herringbone columns and a plurality of frame beams; The columns or double-spliced herringbone columns are connected together to form double-layer units, and the double-layer units are interspersed and arranged in the queue of single-low herringbone columns; The upper end of the adjacent single-low herringbone column and the lower connection part of the double-spliced herringbone column or the single-high herringbone column are connected into one body by the low frame beam, the lower connection part of the double-layer unit is connected by the low frame beam, and the upper connection part is connected by the high frame beam. Frame beam connection. The utility model uses the double-spliced herringbone column structure system as the lateral force-resisting member of the frame, which increases the lateral rigidity of the frame as a whole, effectively controls the deformation of the frame, reduces the arrangement of the end support columns, and saves the floor space. , and through the use of high and low double-layer layout in the middle span, it can effectively avoid accidents and be safer.
Description
Technical Field
The utility model relates to a structural engineering technical field, more specifically relate to an adopt double pin A style of calligraphy post and high low bilayer to arrange framework.
Background
The power transformation framework mainly bears loads in the horizontal direction, the horizontal loads are horizontal tension of the conducting wire and the ground wire, and lateral wind power is adopted. At present, a herringbone column and an end support structure are commonly adopted in domestic power transformation frameworks, and are shown in figure 1. The structure is composed of herringbone framework columns and steel beams. The herringbone framework column is composed of two rigid rods, the two rigid rods form an angle with each other and are connected at the top, and the rigid tie rods are arranged on the left and right sides of the midpoint of the rod pieces. Meanwhile, the inclined strut columns are arranged outside the plane of the herringbone columns to improve the stability outside the plane, and one inclined strut column is usually arranged in a span of 4-5.
The horizontal tension of the conducting wire and the ground wire is related to sag, span, dead weight of the conducting wire and hardware fitting, icing condition, meteorological condition and installation condition. The conductor sag is different along with the temperature change, so under the condition that the type and the span of the conductor are the same, the tension of the conductor is different under different meteorological conditions. Under the influence of the factors, the tension and the deflection angle of the lead of the framework in the existing engineering are larger than those of the conventional framework, so that the specification of the steel pipe of the herringbone column is often large in order to meet the requirement of deformation control of the framework, and the strength of steel materials cannot be fully utilized. Meanwhile, because the end bracing columns need to be arranged at a plurality of positions, the occupied area is larger, and along with the increasing scarcity of land resources, the engineering land of the transformer substation often needs to be reduced, and the problem is highlighted. In addition, due to the influence of the construction environment, surrounding construction facilities and the like, the wires need to be laid at a high position to ensure the safety of surrounding personnel.
Accordingly, there is an urgent need in the art to develop new frameworks that can increase overall lateral stiffness and reduce floor space.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt the framework that double pin A style of calligraphy post and height bilayer were arranged. The utility model discloses a frame has increased the holistic lateral rigidity of framework with the anti lateral force component of double pin herringbone post structure system as the framework, has effectively controlled the deformation of framework, has reduced arranging of end brace post simultaneously, has practiced thrift the area of framework, and through the mode of middle stride adoption height bilayer arrangement, effectively avoids the occurence of failure, and is safer.
The utility model provides a framework which adopts double-spliced A-shaped columns and is arranged in a high-low double layer, the framework comprises a plurality of herringbone columns and a plurality of framework beams, the herringbone columns comprise single-low herringbone columns, double-spliced herringbone columns and optionally single-high herringbone columns, and the framework beams comprise low framework beams and high framework beams; the single low herringbone columns are sequentially arranged, the double-spliced herringbone columns are matched and connected with the single high herringbone columns or the double-spliced herringbone columns to form double-layer units, and the double-layer units are alternately arranged in the queue of the single low herringbone columns; the upper ends of two adjacent single low herringbone columns are connected into a whole through the low framework beam, the upper ends of the adjacent single low herringbone columns and the lower connecting parts of the double-spliced herringbone columns or the single high herringbone columns are connected into a whole through the low framework beam, the lower connecting parts of the double-layer units are connected through the low framework beam, and the upper connecting parts are connected through the high framework beam.
In another preferred embodiment, the framework is p-span, wherein 4 ≦ p ≦ 20; preferably, 5. ltoreq. p.ltoreq.15; more preferably, p is more than or equal to 6 and less than or equal to 10.
In another preferred embodiment, the number of the double-spliced herringbone columns is m, wherein m is more than or equal to 1 and less than or equal to 10; the number of the single high herringbone columns is n, wherein n is more than or equal to 0 and less than or equal to 10; the number of the single lower Chinese character columns is x, wherein x is more than or equal to 2 and less than or equal to 11.
In another preferred embodiment, the double-layer unit is disposed in the middle section of the framework.
In another preferred example, the height of the low-frame beam from the ground is 10-20 m.
In another preferred example, the height of the high framework beam from the ground is 20-40 m.
In another preferred embodiment, the frame is a 220kV frame.
In another preferred embodiment, the double-split herringbone columns are configured to connect two single high herringbone columns into a whole through a plurality of supporting connecting rods.
In another preferred example, the connection mode of the supporting connecting rod and the single high herringbone column is any one mode or the combination of the following modes: hinged, welded and pinned.
In another preferred embodiment, a ground wire column is arranged at the top end of the herringbone column, and the ground wire column is connected with a ground wire and used for protecting the conducting wire.
In another preferred example, the height of the ground wire column is 4-8 m.
In another preferred example, a lightning rod is arranged on the ground wire column on the double-spliced herringbone column and/or the single high herringbone.
In another preferred example, the height of the lightning rod is 15-25 m.
In another preferred embodiment, the truss beam is a lattice beam with a triangular cross section.
In another preferred example, the truss girder comprises an angle steel web member and a steel pipe chord member, and the angle steel web member is connected with the steel pipe chord member through a bolt.
The utility model discloses a main advantage includes:
(a) the double-spliced herringbone columns are used as structural systems of the lateral force resisting members, so that the structural rigidity is increased, the integral deformation of the structural members is effectively controlled, and the stress of the structural members is more reasonable;
(b) the arrangement of end support columns is reduced, so that steel is saved, and the land area is reduced;
(c) the mode that the middle span adopts high-low double-layer arrangement reduces adverse effects brought by surrounding environment (high-rise buildings or high-rise structures outside the enclosing wall), effectively avoids accidents and is safer.
It is understood that within the scope of the present invention, the above-mentioned technical features of the present invention and those specifically described below (e.g. in the examples) can be combined with each other to constitute new or preferred technical solutions. Not to be reiterated herein, but to the extent of space.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of a prior art 220kV architecture;
FIG. 2 is a perspective view of a double pin herringbone post side force resisting member in one example of the present invention;
fig. 3 is a perspective view of a framework with a double-spliced a-shaped column and a high-low double-layer arrangement in an example of the present invention.
In the drawings, each symbol is as follows:
1-single low herringbone column;
2-double-spliced herringbone columns;
3-single high herringbone columns;
4-low truss beam;
5-a high frame beam;
6-supporting the connecting rod;
7-a ground post;
8-lightning rod.
Detailed Description
The inventor has developed a framework that adopts double pin A style of calligraphy post and high low bilayer to arrange through extensive and deep research for the first time, compare with prior art, the utility model discloses a framework has increased the anti lateral force component of double pin A style of calligraphy post structure as whole framework, make full use of material performance, improve framework atress ability, effective control the deformation of framework, reduce the main material specification, reduce framework engineering cost, also reduced the arrangement of end shore simultaneously, practiced thrift area, and through the mode that the intermediate span adopted high low bilayer to arrange, effectively avoid the accident, and then reach economy, be suitable for, pleasing to the eye and safe purpose, accomplished on this basis the utility model discloses a structure is provided with a high-low bilayer to the structure, and the high-low bilayer of the intermediate span is provided with a high-pressure heater.
The mode of high-low double-layer arrangement actually means that the wires hung on the upper beam have to be lifted up to cross the existing building outside the station to ensure the safety distance, the lower beam is used for hanging the edge string according to the electrical requirements, and the edge string can also be hung on the upper beam, so that the wind deflection is large and unsafe, and the edge string is hung on the lower beam.
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, the drawings are schematic and, thus, the apparatus and devices of the present invention are not limited by the size or scale of the schematic.
It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.
Example 1
The framework of the present embodiment using double-spelling A-shaped columns and the high-low double-layer arrangement is shown in FIG. 3. The member has 7 spans and consists of herringbone columns and a framework beam. The herringbone columns comprise 6 single low herringbone columns 1, 1 double-spliced herringbone column 2 and 1 single high herringbone column 3. The truss beams comprise 7 low truss beams 4 and 1 high truss beam 5. The 6 single low herringbone columns 1 are sequentially arranged in a line, and a double-layer unit consisting of the double-spliced herringbone columns 2 and the single high herringbone columns 3 is inserted into the middle of the single low herringbone column 1. The upper ends of two adjacent single low herringbone columns 1 are connected into a whole through a low framework beam 4, the upper ends of the adjacent single low herringbone columns 1 and the lower connecting parts of the double-spliced herringbone columns 2 are connected into a whole through the low framework beam 4, the upper ends of the adjacent single low herringbone columns 1 and the lower connecting parts of the single high herringbone columns 3 are connected into a whole through the low framework beam 4, the double-spliced herringbone columns 2 and the lower connecting parts of the single high herringbone columns 3 are connected through the low framework beam 4, and the upper connecting parts are connected through a high framework beam 5. The height of the hanging line of the low framework beam 4 is 14m, and the height of the hanging line of the high framework beam 5 is 26 m. The low truss beam 4 connected to the single low herringbone strut 1 carries the wire and insulation strings. The low-frame beam 4 of the double-layer unit is used for hanging the insulating string, and the high-frame beam 5 is used for carrying the lead. The single low herringbone columns 1 at the two ends of the herringbone column array are supported by the inclined supporting columns in an auxiliary mode.
The double pin herringbone 2 is formed by hinging two single high herringbone 3 through a plurality of supporting connecting rods 6, as shown in figure 2. And a ground wire column 7 with the height of 6.5 meters is arranged on the top of the herringbone column and is connected with a ground wire for protecting the lead. And a 17.5-meter-high lightning rod 8 is respectively arranged on the ground wire column 7 of the middle span, namely the ground wire columns 7 of the double-spliced herringbone column 2 and the single-high herringbone column 3. The truss girder adopts a lattice girder with a triangular section of a conventional truss. All beam-column connection nodes are connected by bolts, see fig. 3.
The double-layer unit in the present embodiment is particularly suitable for a case where a high-rise building, a high-rise structure, a hill, or the like exists near a substation. If the wire needs to span from a high-rise building or a high-rise structure, the wire is laid at a low height, the distance between the wire and the ground or the top of the building is small (the term is called as insufficient live distance), and when people approach, safety problems are easily caused, so that the height of the framework needs to be raised to ensure that the live distance of the wire meets the safety requirements.
Because the load and deflection angle of the lead are large, the two sides of the middle span beam are not laterally supported, the deformation is large, if the conventional herringbone columns are arranged, in order to meet the deformation requirement, the herringbone columns and the steel pipes of the end supports need to adopt the specification of being larger than phi 660 multiplied by 14, the strength utilization rate of steel is only less than 30 percent, the strength of the steel cannot be fully utilized, and the material is wasted. If a structural system of double-spliced herringbone columns is adopted, transverse large lateral support can be provided for the whole framework, main materials of the framework herringbone columns only need to adopt phi 480 multiplied by 10, and main materials of the end support columns only need to adopt phi 530 multiplied by 10, so that the steel consumption is saved, meanwhile, the end support columns do not need to be arranged in the middle of the framework, and the land area is reduced.
To sum up, this embodiment optimizes receiving the great 220kV of wire tension and declination transformer framework structural style, on the basis of the structural system that conventional A word post and end prop combined together, increase the anti side force component of double pin A word post structure as whole framework, reduce end prop the quantity, make full use of material performance, increase structural rigidity, effectively controlled the deformation of framework, improve the framework atress ability, save engineering cost and area, and through the mode that the intermediate span adopted the double-deck arrangement of height, effectively avoid taking place the accident, it is safer. Has the advantages of safety, reasonableness, land conservation and steel consumption conservation.
All documents mentioned in this application are incorporated by reference into this application as if each were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921697664.2U CN210608472U (en) | 2019-10-11 | 2019-10-11 | A frame with double A-pillars and a double-layer arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921697664.2U CN210608472U (en) | 2019-10-11 | 2019-10-11 | A frame with double A-pillars and a double-layer arrangement |
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| CN210608472U true CN210608472U (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498511A (en) * | 2022-01-18 | 2022-05-13 | 江苏神马电力股份有限公司 | an electrical structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498511A (en) * | 2022-01-18 | 2022-05-13 | 江苏神马电力股份有限公司 | an electrical structure |
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