Double-angle-steel component

A double angle steel and component technology, which is applied to slender elements, building elements, building types, etc., can solve problems such as insufficient support to adapt to transmission towers, etc., to achieve reliable fixation, avoid excessive thickness, and improve service life.

Pending Publication Date: 2019-06-11
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the filling plate only plays the role of connecting the angle steel, and does not directly participate in the force; and the support provided by the existing angle steel material is obviously not enough to adapt to the rapid development of the transmission tower

Method used

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  • Double-angle-steel component
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The length of the double angle steel provided in this example is 1850mm; the slenderness ratio is 60; the cross section of the angle steel and the straight angle steel are both ∟100×7 (mm); the type of bolts used in the end section is 6.8 grade M20×85; the size of the connecting plate is 8× 120×170(mm), the bolts used are grade 6.8 M20×55; the size of the fill plate is 10×60×60(mm), the bolts used are grade 6.8 M20×65; two fill plates are set in the middle section; the length of the section is 310mm .

[0044] The single angle steel comprises the following components by mass fraction:

[0045] C: 0.25, Si: 0.17, Mn: 0.40, Cr: 1.20, Mo: 0.30, and the balance is Fe.

[0046] The connecting plate 3 comprises the following components by mass fraction:

[0047] C: 1; N: 2, In: 0.8; Pd: 0.08; Zr: 0.9; Ir: 1; Rh: 1.5;

[0048] The filler plate 5 comprises the following components by mass fraction:

[0049] C: 0.12, Si: 0.20, Mn: 0.50, P: 0.035, S: 0.050, Cu: 0.20, and the ...

Embodiment 2

[0051] The length of the double angle steel provided in this example is 2500mm; the slenderness ratio is 80; the cross section of the angle steel and the straight angle steel are both ∟100×7 (mm); the type of bolts used in the end section is 6.8 grade M20×85; the size of the connecting plate is 8× 120×170(mm), the bolts used are 6.8 grade M20×55; the filler plate size is 10×60×60(mm), the bolts used are 6.8 grade M20×65; the middle section is equipped with 3 filler plates; the length of the section is 310mm .

[0052]The single angle steel comprises the following components by mass fraction:

[0053] C: 0.55, Si: 0.37, Mn: 1.50, Cr: 0.60, Mo: 0.15, and the balance is Fe.

[0054] The connecting plate 3 comprises the following components by mass fraction:

[0055] C: 1; N: 2; In: 0.8; Pd: 0.08; Zr: 0.9;

[0056] The filler plate 5 comprises the following components by mass fraction:

[0057] C: 0.12, Si: 0.20, Mn: 0.50, P: 0.035, S: 0.050, Cu: 0.20, and the balance is iron....

Embodiment 3

[0059] The length of the double angle steel provided in this example is 3090 mm; the slenderness ratio is 100; the cross-section of the angle steel and the straight angle steel are both ∟100×7 (mm); the type of bolt used in the end section is 6.8 grade M20×85; the size of the connecting plate is 8× 120×170(mm), the bolt used is 6.8 grade M20×55; the size of the filler plate is 10×60×60(mm), the bolt used is 6.8 grade M20×65; the middle section is equipped with 3 filler plates; the length of the section is 230mm .

[0060] The single angle steel comprises the following components by mass fraction:

[0061] C: 0.30, Si: 0.30, Mn: 1.0, Cr: 1.0, Mo: 0.20%, and the balance is Fe.

[0062] The connecting plate 3 comprises the following components by mass fraction:

[0063] C: 1; N: 2; In: 0.8; Pd: 0.08; Zr: 0.9;

[0064] The filler plate 5 comprises the following components by mass fraction:

[0065] C: 0.12, Si: 0.20, Mn: 0.50, P: 0.030, S: 0.045, Cu: 0.20, and the balance is i...

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Abstract

The invention provides a double-angle-steel component. The double-angle-steel component comprises two single angle steel of which limb backs abut against each other and are connected to each other. One of the two single angle steel includes an intermediate section and curved sections. According to the technical scheme, the distance between the adjacent limb backs is reduced by designing one of thetwo single angle steel as the single angle steel with the curved sections at both ends, and then the thickness of filler plates between the limb backs is reduced and the problem of excessive thickness of the filler plates is solved; and compared with the prior art, the filler plates only need to be arranged on the middle sections of the limb backs, and the number of the filler plates can be further reduced. The steel consumption is reduced as a whole to achieve an economically reasonable target; and the component machining precision is high, the quality is reliable, and the bearing capacity is greatly improved.

Description

technical field [0001] The invention relates to a double-angle steel component, in particular to a double-angle steel component. Background technique [0002] The power industry is a basic industry of the national economy and a leading industry in the development of the national economy. In recent years, with the rapid and stable development of the economy, the demand for electric energy in various industries is increasing. To this end, my country has continuously increased its efforts to improve power grid construction, increase power transmission capacity, and achieve longer-distance power transmission, such as ultra-high voltage and ultra-high voltage transmission projects. In the process of power grid construction, the transmission tower, as an important infrastructure of the power lifeline project, has also achieved unprecedented development. Its structural forms are constantly innovating, from reinforced concrete transmission towers to guyed transmission towers, to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/08F16S3/02C22C38/02C22C38/04C22C38/22C22C38/60C22C38/14C22C38/16
Inventor 房正刚默增禄莫娟黄彭刘蕊冯国巍杨臻沈鸿冰樊宝珍
Owner CHINA ELECTRIC POWER RES INST
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