CN1258033C - Power transmission line support construction - Google Patents
Power transmission line support construction Download PDFInfo
- Publication number
- CN1258033C CN1258033C CN 01823500 CN01823500A CN1258033C CN 1258033 C CN1258033 C CN 1258033C CN 01823500 CN01823500 CN 01823500 CN 01823500 A CN01823500 A CN 01823500A CN 1258033 C CN1258033 C CN 1258033C
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- Prior art keywords
- ribs
- rigidity ribs
- transmission line
- rigidity
- support
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- Expired - Fee Related
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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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
-
- 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
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
The invention relates to long carrying structures such as a dumbbell pier of a power transmission line support of low voltage class. The inventive long carrying structure of a dumbbell pier has a triangular cross section and is provided with shaped side faces and trusses which have stiffening ribs made from a bent sheet material and embodied in the form of a hollow (frameless) frustum of pyramid provided with two adjacent lateral faces which are embodied from a V-type bent continuous metallic sheet in the form of congruent trapezoidal planes and with a lateral face having a flat surface formed by the elements of a grid, for example diagonals which are disposed along the height of said lateral face and fixed to the external surfaces of flat stiffening ribs. Said ribs are formed by the end bends of said continuous metallic sheet in the form parallelograms disposed symmetrically with respect to the opposite sides of a lattice lateral face on the common plane therewith. Said structure also comprises two adjacent lateral faces arranged at a bevel angle with respect to the planes, the lateral members of the carrying structure being formed by the bend edges of the sheet in the form of three lateral edges of the frustum of pyramid. The pyramidal form of the dumbbell pier of the support embodied from the shaped solid metallic sheet and framing elements increases the mechanical strength thereof.
Description
Technical field
The present invention is relevant with manufacturing industry, and comprising the high voltage power transmission wireform, its form is a space frame.
Background technology
For the most frequently used and reliable independent support (no drag-line), advocating of a pole panel is definite by the moment of deflection load.Under normal condition, load is perpendicular to high-voltage line, and under case of emergency, load is along high-voltage line.Moment of deflection at upper section is little like this, and is big in the moment of lower section, and approaching for the active force of the upper panel that makes each segmentation and lower raft, the panel that band tilts is made in segmentation.When these active forces of balance, can make full use of the strength of materials of panel by the segmentation full height, make panel consume steel and reach minimum.But the big gradient of panel causes lower posts to expand, and has increased the weight of framework, and support must be installed on three or four pedestals.
In order to reduce the area that the high voltage power transmission wireform takies and the weight of base quantity and framework, adopt the narrow base support that is fixed on the pedestal now.When making pier construction, these supports are similar to wide understructure, owing to reduce the width of pillar, cause the increase of panel internal stress, owing to reduce stress that the gradient of panel makes the upper panel of each segmentation and lower raft difference to some extent.Therefore, press maximum stress (in lower shoe) Selection Floater intensity, and do not adopt the intensity of other panel of segmentation.Owing to these reasons, the steel consumption amount increase of narrow base support panel is very big.
Notice the shortcoming of narrow base support, make support by wide base pattern, partly narrow base polyhedron pillar is adopted in cancellation, and this pillar is to be made by the steel plate bending in whole cross section, has the polygon form of standard.This class application example is seen the patent of on July 2nd, 1992 issue, US NO.5117607, E04H12/08 pillar manual or see the patent EP NO.0407998 of issue on January 6th, 1991, E04H12/10.In order to save the purpose of material, the cross sectional dimensions of polygon pillar is reduced to the minimum value on top usually by the maximum value of pillar bottom, the corresponding moment of deflection that reduced.The structure of selecting is to have used the typical stent of trolley wire 110 and 220 kilovars (to see " high-tension electricity device handbook " 425-426 page or leaf for details, Atomic Energy Press's version in 1989 and " trolley line support and the above electric substation of voltage 1 kilovar design manual " type design Academia Sinica publish, version 58-59 page or leaf in 1989).
Have whole polygon and prop up the support of column section, its shortcoming still exists and consumes considerable material.Like this, the flexural stress that is distributed in the fiber of center line cross-sectional area is lower than permissible value in fact, and promptly these fibre strengths do not make full use of the intensity of material.
Certainly, long and the well-balanced braced structures of high voltage power transmission line bracket, comprise and have the rigidity reinforcing rib sides, there is crooked metal sheet to support segmentation, interconnects, and form triangular cross section, at this moment, the rigidity ribs of the surface of two sides and each segmentation of pillar is that its end is a flanging by the tabular band integrally bending of moulding forming V-shape, forms three rigidity ribs of the pre-bent plate of braced structures dihedral panel.Wherein two are arranged as homalographic, it is adjacent side, in echelon, and the end on two planes is a flanging, and promptly the rigidity ribs becomes parallelogram, become the obtuse angle to tilt to adjacent side, and fix with lattice purlin element each other, form the surface of the 3rd side, it such as is shaped as at trapezoidal braced structures in side.Therefore, the rigidity ribs is from side, lattice purlin different directions symmetric arrangement in one plane (see the patent RU NO.2083785 of on July 10th, 1997 issue for details, E04H 12/00)
Have high mechanical strength by the typical stent structure, this is to rely on to select rational shape of cross section, changes cross section along exoskeletal space frame total length.But, in the typical structure example, press the high voltage transmission line vertical and horizontal, has different mechanical strengths, relatively the power perpendicular to the support section of high voltage transmission line direction is uneven, the structure that provides has high mechanical strength for high voltage transmission line lateral load (duty load), and has less mechanical strength along the load (emergency rating load) of high voltage transmission line direction.When the lead of heavy in section high voltage transmission line is used, emergency rating load (when wire fracture) may exceed the enabling capabilities of pillar, this will cause reducing the working pulling force in the lead, rely on and shorten the high voltage transmission line circuit and reduce that span solves between the adjacent stent, simultaneously, when building high voltage transmission line, arm brace must be installed, the corresponding expense of laying that has increased high voltage transmission line.Therefore to rationally study the method that improves the stent strut mechanical strength, this with the high voltage transmission line direction on to act on the moment of deflection of framework relevant.
Summary of the invention
The objective of the invention is to improve the space frame mechanical strength, the technical solution task.Rely on to change the method for pillar profile, can bear moment of deflection, and do not increase the thickness of metal decking and do not enlarge the base of framework.
The technological achievement that obtain this moment comprises: under emergency rating, support is subjected to when the high voltage transmission line direction is loaded, improve the mechanical strength of support, when permission is used large-section lead at high voltage transmission line, do not increase and build the necessary number of holders of high voltage transmission line, and reduced the expense of laying of high voltage transmission line.
Above-mentioned technological achievement reaches such degree, it is that power transmission line support comprises: side with rigidity ribs, making segmentation by crooked metal sheet is coupled to each other together, and composition triangular cross section, two side surface and the rigidity ribs of each segmentation of pillar are to make V-arrangement by the tabular band integrally bending of moulding, its end is a flanging, form three ribs of the dihedral panel rigid type face pre-bending of braced structures, wherein two are arranged as homalographic, it is adjacent side, the end on two planes is a flanging, and promptly the rigidity ribs becomes the obtuse angle to tilt to adjacent side, and fix with lattice purlin element each other, form the surface of the 3rd side, simultaneously, the rigidity ribs from side, lattice purlin different directions symmetric arrangement in one plane.Supporting structure has additional rigidity ribs, and its direction is perpendicular to the surface and the rigidity ribs of side, lattice purlin, and is that integral body is made.
When making replenishes ribs, it is installed on the power line direction, triangle or trapezoidal unsplit bedplate are positioned at the bottom of supporting structure.
Its outstanding feature is new with comparing like the known class, is necessary in order to reach new technological achievement in a word, comprises the light Fast Installation of creating the high voltage power transmission wireform, has the stability and the mechanical strength of enhancing under normal and emergency rating.
Description of drawings
Description of drawings of the present invention is as follows:
Fig. 1 embodiment always schemes for long and well-balanced power transmission line support, from replenishing rigidity ribs aspect;
Fig. 2 supporting structure, rear elevation;
Fig. 3 supporting structure, vertical view;
Fig. 4 first embodiment supporting structure has the whole rigidity ribs that replenishes of rectangle;
Fig. 5 second embodiment supporting structure has trapezoidal integral body and replenishes the rigidity ribs;
Fig. 6 the 3rd embodiment supporting structure should have the whole rigidity ribs that replenishes of triangle;
The specific embodiment
Supporting structure is used for high voltage transmission line according to the present invention, comprise side with rigidity ribs, making segmentation by crooked metal sheet interconnects, and composition triangular cross section, two side surface rigidity ribs of each segmentation of pillar are to make V-arrangement by the tabular band integrally bending of moulding, its end is a flanging, form three pre-bent plate rigidity ribs of the dihedral panel of braced structures, wherein two are arranged as homalographic, it is adjacent side, the end on two planes is a flanging, and promptly the rigidity ribs becomes the obtuse angle to tilt to adjacent side, and fix with lattice purlin element each other, form the surface of the 3rd side, simultaneously, the rigidity ribs from side, lattice purlin different directions symmetric arrangement in one plane.
In order to improve along the rack mechanical strength of high voltage transmission line direction, on the supporting structure cross section, to adopt and replenish the rigidity ribs, it is configured in along on the high voltage transmission line direction.The direction of replenishing the rigidity ribs is perpendicular to lattice the spread out surface and the rigidity ribs of side, and the outside is made into whole triangle or trapezoidal along the structure full height from structure.
Making when replenishing ribs, be provided with and replenish ribs on the power line direction, and be integral manufacturing, triangle or trapezoidal base are positioned at the bottom of supporting structure.
It below is the specific embodiment of high voltage power transmission wireform.
Long and the well-balanced supporting bracket structure of high voltage transmission line stent strut comprises: dihedral panel 1, adjacent side 2, rigidity ribs 3, lattice purlin element 4, pillar adpting flange 5.
Whole support components of pillar are to be made by one whole tabular band of rolled metal, cut out the crooked forming V-shape of blanking on the section bar plane, form adjacent side 2 and rigidity ribs 3 and hollow exoskeletal space frame, and it is shaped as truncated pyramid (Fig. 1).The adjacent side 2 of pyramid is complete (identical) together, and symmetry connects the ribs by the metal sheet bending each other, forms the dihedral panel 1 of pyramid side ribs and braced structures simultaneously.
The end of the whole tabular band of v-shaped bending is crooked symmetrically under the relative status equally outside, and forms ribs 3, and parallelogram is made on the plane of ribs.At this moment, the angle of bend of metal sheet has formed the side ribs of pyramid and the dihedral panel 1 of braced structures.The plane of the adjacent side 2 of truncated pyramid is made trapezoidal, becomes the obtuse angle to be connected with the plane of rigidity ribs 3, and fixing with lattice purlin element 4 each other, for example, diagonal member is to make (Fig. 2) with angle section.Lattice purlin element 4 is configured in the plane with rigidity ribs 3, and forms the rigid element of shore supports structures with the opposed panels 1 in the 3rd side of truncated pyramid 2.Isosceles trapezoid is made on the plane of the 3rd side 2, and its all aspect is the same with rigidity ribs 3 everyways, complete identical be that the angle of common sensing aspect equates.
The ratio that acts on moment of deflection on the supporting structure is depended in the selection of angle α between the side 2, and above-mentioned opplied moment is perpendicular to X and Y-axis aspect (Fig. 3), and the coefficient of consideration depends on the area ratio of rigidity ribs and supporting structure side.
The full same sex on braced structures shaping plane helps distributed load equably, this load is to act on the lattice purlin element 4 of the plane of truncated pyramid side 2 and the 3rd side, formed pyramid triangular-section, have small size in the braced structures upper end, and near its base, have large tracts of land.
Braced structures with isoceles triangle tee section may be made into has one or two dihedral panel 1, regulation panel 1 is perpendicular to plane on the truncated pyramid and lower bottom base, it has improved the stability of stent strut along power line lead direction, and its horizontal stability is to rely on rigidity ribs plane to guarantee.By whole metal sheet inclined side of making 2 and lattice purlin element 4, strengthened braced structures mechanical strength normal and axial down rotation of emergency rating and bend loading with inclination rigidity ribs 3.Lattice purlin element 4 is installed principal post under design point light, and guarantee to satisfy the working service of high voltage power transmission line bracket electric part.
In order to satisfy movement requirement, the cancellation part of path, long and well-balanced supporting structure can be made up of plurality of segments, and segmentation is to be made by whole tabular band bending, the tabular band of segmentation becomes flange at the installation position flanging, connects or weld with bolt each other to fix.
In order to strengthen the mechanical strength of support, on the supporting structure cross section, adopt and replenish rigidity ribs 6 along high voltage transmission line lead direction.When the mounting bracket structure, on the high voltage transmission line centerline direction, install and replenish rigidity ribs 6.At this moment, replenishing rigidity ribs 6 may be along support full height integral manufacturing (Fig. 4,5,6).According to the size that effect is structurally loaded, replenish rigidity ribs 6 and can be made into triangle (Fig. 6), rectangle (Fig. 4) or trapezoidal (Fig. 5).When making the triangle ribs, triangle base is positioned at the support bottom, and ribs is when being trapezoidal, and then the trapezoidal bottom seat is positioned at the support bottom.
Increase to replenish rigidity ribs (being arranged on the high voltage transmission line direction) on the supporting structure and can strengthen the mechanical strength of support and not enlarge pedestal, this is to rely on to have cancelled relatively the result who obtains perpendicular to the asymmetry of the strut section of high voltage transmission line.
Industrial applicability
The present invention is suitable for industrial, in order to implement industrial production, does not require special technological equipment equally, in addition, Now just can utilize the present invention to make frame construction.
Claims (2)
1, power transmission line support, comprise side with rigidity ribs, making segmentation by the metal sheet bending interconnects, and composition triangular cross section, two side surface and the rigidity ribs of each segmentation of support are to make V-arrangement by the tabular band integrally bending of moulding, its end is a flanging, form three pre-bent plate rigidity ribs of braced structures dihedral panel, wherein two are arranged as homalographic, i.e. adjacent side, and two flat ends are flanging, it is the rigidity ribs, plane to adjacent side becomes the obtuse angle to tilt, and fixes with lattice purlin element each other, forms the surface of the 3rd side; Simultaneously, the rigidity ribs is arranged symmetrically on the face from the different directions of side, lattice purlin; It is characterized by: increased additional rigidity ribs, its direction is perpendicular to the surface and the rigidity ribs of side, lattice purlin, and outside integral body is made triangle or rectangle or trapezoidal along the structure overall height from structure.
2,, be characterized as additional rigidity ribs and be arranged on the power line direction according to the described power transmission line support of claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001120754A RU2197587C1 (en) | 2001-07-25 | 2001-07-25 | Supporting structure for electric power line |
| RU2001120754 | 2001-07-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1537191A CN1537191A (en) | 2004-10-13 |
| CN1258033C true CN1258033C (en) | 2006-05-31 |
Family
ID=20252043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01823500 Expired - Fee Related CN1258033C (en) | 2001-07-25 | 2001-11-01 | Power transmission line support construction |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1258033C (en) |
| RU (1) | RU2197587C1 (en) |
| WO (1) | WO2003010402A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8567155B2 (en) * | 2006-07-19 | 2013-10-29 | Tom W Waugh | Centrifugally cast pole and method |
| US9416555B2 (en) | 2007-02-28 | 2016-08-16 | Seccional Brasil SA | Structure for supporting electric power transmission lines |
| RU2450110C2 (en) * | 2010-07-01 | 2012-05-10 | Закрытое акционерное общество "Внедренческое научно-производственное общество "РОСЛЭП" | Tower body of overhead transmission line |
| RU2613694C2 (en) * | 2015-08-14 | 2017-03-21 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Калмыцкий государственный университет имени Б.Б. Городовикова" | Mast |
| CN115258041A (en) * | 2022-07-08 | 2022-11-01 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | LNG (liquefied Natural gas) breathable mast for LNG (liquefied Natural gas) double-fuel ship |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2649386C3 (en) * | 1976-10-29 | 1980-09-18 | Starkstrom-Anlagen-Gmbh, 6000 Frankfurt | Overhead line mast |
| DE2700400A1 (en) * | 1977-01-06 | 1978-07-13 | Fluck U Sohn J P A Hintzpeter | Protection fence for pylons in high flood risk areas - has posts around which is wound wire which is then stretched to give preload |
| RU2083785C1 (en) * | 1994-06-02 | 1997-07-10 | Внедренческое научно-производственное акционерное общество закрытого типа "ЭЛСИ" | Long-size load-bearing structure of upright-type in aerial power transmission line support |
-
2001
- 2001-07-25 RU RU2001120754A patent/RU2197587C1/en not_active IP Right Cessation
- 2001-11-01 CN CN 01823500 patent/CN1258033C/en not_active Expired - Fee Related
- 2001-11-01 WO PCT/RU2001/000461 patent/WO2003010402A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003010402A1 (en) | 2003-02-06 |
| CN1537191A (en) | 2004-10-13 |
| RU2197587C1 (en) | 2003-01-27 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060531 Termination date: 20111101 |