CN1239799C

CN1239799C - Power transmission line support

Info

Publication number: CN1239799C
Application number: CN 01823441
Authority: CN
Inventors: 尤里·罗勃脱维奇·龚格; 安娜托里·阿隆诺维奇·瑞文
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-03
Filing date: 2001-11-01
Publication date: 2006-02-01
Anticipated expiration: 2021-11-01
Also published as: WO2003004802A1; CN1524151A; RU2204672C2

Abstract

The invention relates to construction engineering. Each truss of a space framework is embodied in a triangular form from a solid-drawn steel sheet bent in the form of three planes which are continuous along the height thereof and disposed in a bevelled manner with respect to each other. The first plane is embodied in the form of specified geometrical figure (triangle, trapezium) and forms with other planes a central face. Two other planes are embodied in such a way that they have a rectangular or triangle or trapezoidal shape, thereby forming two side faces of the truss used as stiffening ribs. Two stiffening ribs of the adjacent trusses are disposed on the adjacent plane of the side face of a side frame and fixed with the aid of braces along the entire height of the side face. Said trusses are inclinedly arranged with respect to the vertical axis of the space framework.

Description

Power transmission line support

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 the support 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 amount of the disappearing 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 standard polygon pattern.This class application example is seen the patent of on July 2nd, 1992 issue, US NO:5117607, and E04H 12/08 pillar manual or see the patent EP NO:0407998 of issue on January 6th, 1991, E04H 12/10.More than in two examples, in order to save the purpose of material, the cross sectional dimensions of polygon pillar is reduced to the minimum value on top, the corresponding moment of deflection that reduced by the maximum value of pillar bottom.The structure of selecting is to have used the typical stent of trolley wire (BL) 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, have the high voltage power transmission wireform of the space frame form of polygonal cross-section, comprise the panel that is shaped by board making.When bent plate, form the rigidity section, and the element of dative purlin is fixed.At this moment, the panel of the side of space frame is made trihedral, make along the full height bending of supporting structure by whole independent steel plate, it links to each other with other plane with the obtuse angle, form isosceles triangle, and trapezoidal adjacent with each side, form the rigidity ribs of panel, simultaneously, triangle projective planum becomes to be in tilted layout with the vertical line of space frame with rectangular surfaces, and lattice purlin element is fixed on the rigidity ribs of adjacent side face plate edge, and be arranged in the plane of each side of space frame, at this moment, the Rectangular Rigid ribs of the adjacent panels layout that is parallel to each other, the end of framework adjacent side lattice purlin element is fixed on total parts of this panel, and near the section part of supporting structure base and segmentation link made octagon, and quadrangle (see the patent RU application NO:94020592 of Russia's issue in 1996, E04H 12/00) is made at the top of supporting structure.

Given high voltage power transmission wireform as standard type.

By the supporting structure of given scheme have high mechanical strength, this is to rely on to select reasonable dosage transverse shape, changes the cross section along the space frame total length.But the high load capacity of dissection on framework shows that the rigidity that is arranged in segmentation top has strengthened, and do not make full use of the intensity of material.The rectangle that is the rigidity ribs has equal widths by panel height and framework height.Size at framework top area rigidity ribs is very big, is irrational, then will cause increasing metal wastage and framework weight is increased.Therefore, reasonably research reduces the method for metal material consumption, passes through the rigidity ribs in the zone, does not require for Payload and improves rigidity consumingly.

Summary of the invention

The objective of the invention is to by optimizing sheet metal consumption, the technical solution task is considered the rational structure selection, is not only the cross section, and exoskeletal space frame changes the cross section along total length, and considers that also the surface texture of panel forms.

The technological achievement that obtain this moment comprises: optimize when making panel along framework Level Change panel-shaped, to adapt to along the service load of framework Level Change, reduce the consumption of steel,, this support is fixed on the pedestal in order to alleviate narrow base support polygon metal construction.

Above-mentioned technological achievement reaches such degree, be that power transmission line support is the space frame in polygon cross section, the panel that comprises at least three shapings, pressing certain distance each other arranges, and link together between the element of lattice purlin, form closed cross section, the panel of each shaping is made trihedral by whole metal sheet, crooked in transverse plane along the supporting structure height, central surface forms certain geometry, be configured in its place, obtuse angle and roll its surface, form the rigidity ribs of panel, and be made into certain geometry.The plane of above-mentioned panel surface becomes to be in tilted layout to the space frame vertical line, and tightly being fixed in the adjacent panels edge, lattice purlin element has on the rigidity ribs, and be arranged in the plane of each side of space frame with it, at this moment, the rigidity ribs of adjacent panels is arranged in parallel each other, the end of framework adjacent side lattice purlin element is fixed on total parts of its panel, and the panel central surface is made isosceles triangle or trapezoidal.

When making the panel middle part, two panel side rigidity ribs that are connected with the panel central surface, wherein each may make rectangle or isosceles triangle or right-angled triangle or trapezoidal.At this moment, each leg-of-mutton base or each bigger trapezoidal base are arranged in the framework base.

Near base and truss sections link cross section is made octagon, and the supporting structure top plan is made quadrangle.

For the stability that strengthens supporting structure with simplify it and install, two adjacent trihedral panels are with the side of its adjacent frame and to be arranged in two of the opposite other trihedral panel surfaces adjacent with its side be to be made by whole sheet forming.

Its outstanding feature is new with comparing like the known class, in a word, in order to reach new craft achievement, this is necessary, comprise the light Fast Installation of creating the high voltage power transmission wireform, under normal and emergency rating, have the stability and the mechanical strength of enhancing.

The supporting structure of this space frame form, its principal character is as follows:

The trihedral structure of space frame panel has the integral planar of geometry, is made by solid drawn sheet metal;

The space frame vertical line is become to be in tilted layout, and the framework cross section becomes quadrangle;

The panel rigidity ribs that is arranged in lateral plane forms lattice purlin element as its surface portion;

Two pairs of opposed panels are to be made by the sheet material of individual shaping with the adjacent side with integral surface;

The central surface of panel is made isosceles triangle or trapezoidal, two the side rigidity ribs adjacent with the panel central surface are made into rectangle or isosceles triangle or right-angled triangle or trapezoidal, and arrange that each triangle base or trapezoidal base that each is bigger are in the framework base.

Description of drawings

Drawing of the present invention is described as follows:

Fig. 1 has the supporting structure space frame of four panels and always schemes first embodiment;

Fig. 2 has two pairs of space frames of making the panel of one and always schemes second embodiment;

Fig. 3 supporting structure panel is always schemed, first embodiment;

Fig. 4 supporting structure panel is always schemed, second embodiment;

Fig. 5 supporting structure panel is always schemed, the 3rd embodiment;

Fig. 6 supporting structure panel is always schemed, the 4th embodiment;

Fig. 7 supporting structure panel is always schemed, the 5th embodiment;

The better scheme that carries out an invention

Supporting structure is the main body framework that is used for the polygon cross section of high voltage transmission line according to the present invention, comprise with sheet material crooked panel of making in transverse plane with geometry, and be fixed on the element of lattice purlin, and utilize diagonal member that above-mentioned panel is linked together each other in the diagonal member mode.Lattice purlin formula three-dimensional bracket structure has the panel that changes the cross section along length, comprises the panel of three shapings at least, presses certain distance each other and arranges, and connect with the diagonal member form, forms the enclosed cross section.

Each shaping panel is made trihedral by whole metal sheet, along the bending of supporting structure full height, press the obtuse angle and form three faces each other, wherein first is a center panel, make the geometry (for example Fig. 1, isosceles triangle) of regulation, and two other two sides adjacent with central authorities, make the geometric figure (as Fig. 1, rectangle) of regulation simultaneously.At this moment, the rigidity ribs of two other side formation panel adjacent with central authorities.

The central surface of panel may be made trapezoidal (Fig. 4-6), and two sides adjacent with the panel central surface, wherein the rigidity ribs of each panel may be made isosceles triangle (Fig. 6) or trapezoidal (Fig. 3,4).At this moment, each triangle base or trapezoidal base that each is bigger should be arranged in the framework base.

The plane of trihedral panel surface becomes to be in tilted layout to the space frame center line, and lattice purlin element tightly is fixed on the edge of adjacent panels rigidity ribs, and is arranged in the plane of each side of space frame.Adjacent panels rigidity ribs is arranged in parallel each other, and element end, framework adjacent side lattice purlin is fixed on the panel with total parts.

Octagon is made near base and segmentation link cross section, and the supporting structure top plan is made quadrangle.

The surface and the adjacent side of the trihedral panel of the surface of two adjacent trihedral panels and coupled framework side and two other opposed layout may be made together with the sheet material of one whole shaping, as shown in Figure 2.

Inventive embodiments is as follows:

Finish the high voltage power transmission wireform by Fig. 1 with the space frame form, comprise the dihedral panel 1 of shaping, for example have a gore 2, and two rectangular surfaces 3 and the lattice purlin element that occurs with diagonal member 4 forms.

Press Fig. 1, the space frame of high voltage power transmission wireform is to be made of four shaping panels, is connected by lattice purlin element each other.Each panel 1 of framework is to make trihedral by whole Zhang Jiahou rolled metal plate, bends to three geometric form planes, 2 one-tenth isosceles triangles of the medial side face of panel, 3 one-tenth rectangles of these framework panel both ends of the surface.

End flat 3 links to each other with 2 one-tenth obtuse angles, plane of panel 1 centre, and realizes rigidity ribs function.

An end face 3 of each continuous panel 1 is arranged in the plane of framework adjacent side, forms the lateral parts of framework simultaneously by full height.

The lattice purlin element rigidity that occurs with diagonal member 4 forms overlaps on the inner surface of the end face 3 that is fixed on adjacent panels 1, and arranges by the side full height, and the diagonal member 4 of framework adjacent side butts up against on the total parts of panel 1 adjacent fixed.Lattice purlin element may be made by angle steel or bar.

The surface of two continuous trihedral panels 1 may be made into (Fig. 2) by the metal sheet that a whole Zhang Jiahou is shaped with the surface of adjacent side surface and similar opposed panel and the adjacent side of framework.Just two sides with framework are fixed on lattice purlin element on the rectangular surfaces 3 of adjacent panels 1.

Trihedral panel 1 and adjacent side form the cross section of octagonal space frame, and the supporting structure top plan forms quadrangle (Fig. 1,2).

The trihedral panel and the calculated load of fixed framework can be finished in the isosceles triangle mode and with the rigidity ribs of trapezoidal (Fig. 3) form or with 3-D triangle (Fig. 7) form according to central surface with the supporting structure height.The panel of central part can be made trapezoidal (Fig. 4-6), and its side configuration rigidity ribs has trapezoidal (Fig. 4) or rectangle (Fig. 5) or triangle (Fig. 6).By shape, trapezoidal may be isosceles.

Like this, supporting structure is a space frame, has three trihedral panels and three lattice purlin faces at least, considers the change of median plane width, and the section of each panel continuously reduces from top to bottom.Lattice purlin element can be made by following material, promptly by rolling angle iron or crooked angle steel and bar or the tubing of making, can be welding with the connected mode of panel end face or is connected with bolt.

Each panel is apolegamy like this to the gradient and the angle between each face of center line, and the width of lattice purlin face is constant along structure height, and this is in order to satisfy the standardization of lattice purlin element.

For the requirement of satisfying transportation and installing, can make the supporting structure of long size, be shaped according to the sheet metal strip curved edge and form segmentation, upper end or lower edge interfix, for example by means of built-in type, connect with flange from the inside, flange can be made with angle steel or with sheet material.This space frame structure of making by whole formed metal plate bending, the supporting structure base section area that has than near the sectional area top of the trellis more greatly, space frame with anistree face, the side that useful rigidity ribs 3 and diagonal member 4 are reinforced, the total parts of diagonal member 4-5 are fixed on each panel, when finishing multichain formula high voltage power transmission line bracket and breaking in the many phase lines of high voltage transmission line a wire, this frame structures has high mechanical strength to crooked and torque load.

Simultaneously, the metal wastage of this structure is little, and is in light weight, can assemble fast.When the framework of mount support structure, must keep the accuracy of side panel, and remain on interior each panel of transverse plane accuracy of relative position each other carriage center vertical line gradient.

In order to solve this task, when the mount support structure, predesignate between the rectangular slab of the panel configuration that links to each other distance and will make equally by the space frame height, see Fig. 1,2.In this case, adjust lower panel relative position each other a little, the solid that just might make the framework of assembling meet panel is arranged and to the gradient of framework vertical line.In this case, allow to utilize the diagonal member of different length to adjust.Possible each panel relative position is each other located, and lattice purlin element is made of the equal length diagonal member.Like this, the diagonal member 4 of framework adjacent side is adjacent fixing total parts of panel and implements butt joint, so when assembling space frame panel, utilize the diagonal member of equal length, will bring all one's strength into play could be up to specification relative position each other, and consider gradient to the framework vertical line.May be solve the three-dimensional position accuracy of check framework element, the distance between the rectangular surfaces of the adjacent layout of each continuous panel of cooperation equates, and with the diagonal member of equal length.The examination built-up member 36 that illustrate

The application of supporting structure and other panel embodiment.

Industrial applicability

The present invention is suitable for industrial, equally for industrial production, does not require special technological equipment, In addition, now just can utilize the present invention to make frame construction.

Claims

1, power transmission line support is the space frame in polygon cross section, the panel that comprises at least three shapings, each panel is arranged by certain distance each other, connect with lattice purlin element between each panel, form the enclosed cross section, the panel of each shaping is made trihedral by whole metal sheet, in transverse plane, the metal sheet bending is made the central surface of the geometry of regulation along the supporting structure height, and roll the surface by the obtuse angle, form the rigidity ribs of panel, and make the geometry of regulation, the plane of above-mentioned panel surface becomes to be in tilted layout to the space frame vertical line, and lattice purlin element is rigidly fixed on the rigidity ribs edge of the panel that links to each other, and be arranged in the plane of each side of space frame with it, at this moment, the panel rigidity ribs that the links to each other layout that is parallel to each other, element end, framework adjacent side lattice purlin is fixed on the panel with total parts, it is characterized by the panel central surface and make isosceles triangle or trapezoidal, and the panel rigidity ribs of each two side that link to each other with the panel central surface is made isosceles triangle or right-angled triangle or trapezoidal, at this moment, each triangle base or each bigger trapezoidal base are arranged in the framework base.

2, power transmission line support as claimed in claim 1, octagon is made in the cross section that it is characterized by base, and quadrangle is then made at the supporting structure top.