CN209369396U - A kind of fixture bracing means of transmission tower main material - Google Patents
A kind of fixture bracing means of transmission tower main material Download PDFInfo
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- CN209369396U CN209369396U CN201821854129.9U CN201821854129U CN209369396U CN 209369396 U CN209369396 U CN 209369396U CN 201821854129 U CN201821854129 U CN 201821854129U CN 209369396 U CN209369396 U CN 209369396U
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Abstract
The utility model discloses a kind of fixture bracing means of transmission tower main material, including reinforcing angle and fixture, main material angle steel equivalent specifications to be reinforced on the reinforcing angle and transmission tower, the reinforcing angle, which is connected by fixture with main material angle steel, to be reinforced, the fixture includes cross section profile and L-type clamping plate, reinforcing angle and main material angle steel are located in symmetrical two angles of cross section profile, two limbs of reinforcing angle are fixedly linked by two limbs of bolt and cross section profile, L-type clamping plate is by main material angle steel pressing clip among other two limb of cross section profile, it is connected between two limbs of L-type clamping plate and two limbs of cross section profile by bolt.The utility model will carry out Dam Foundation Strengthened in Situ to main material angle steel, not influence the working condition of existing transmission tower, and reinforced in the case where not destroying original main material structure situation, can effectively adapt to the reinforcing of former main material situation in the hole.
Description
Technical field
The utility model belongs to power Transmission technical field, is related to a kind of transmission tower reinforcement technique, and in particular to a kind of
The fixture bracing means of transmission tower main material.
Background technique
The construction of State Grid's line facility is the lifeline engineering of the country and people, wherein transmission tower structure is most
Part and parcel.China's transmission tower structure is largely built in the 1980s, wherein truss of angle steel tower is because its cost passes through
It helps, the advantages that construction, simple structure is facilitated to become most common structure type in power transmission tower.Since building time is more early, at present
Most of transmission tower already close to or reach its design life, meanwhile, transmission tower itself belongs to highrise steel structure,
The influence of the unfavorable factors such as disaster caused by a windstorm, corrosion is faced for a long time, and especially main material generates buckling failure when by larger wind load；Along with defeated
Requirement of the update upgrading of electric equipment to transmission tower structural bearing capacity, the existing transmission tower structure in China are now urgently reasonable
Transformation and reinforcing.Requirement for Scheme of Strengthening should include: that consolidation effect is good, and strengthening quality is high, reinforce high reliablity,
Durability is strong after reinforcing；It is easy for construction, it can be realized the reinforcing for guaranteeing quality under the conditions of high altitude operation；Meeting practical reinforce
It under requirement condition, effects the greatest economy material and duration, but there are no related art schemes to be able to satisfy these requirements in the prior art.
Utility model content
The utility model is directed to existing transmission tower strengthening reconstruction demand, and the fixture for providing a kind of transmission tower main material adds
It is fixedly mounted with and sets, strengthening quality is high, and good reliability is easy for construction, and will not further destroy original main material destroyed.
To solve the above problems, the technical solution that the utility model is taken is as follows:
A kind of fixture bracing means of transmission tower main material, it is characterised in that: including reinforcing angle and fixture, the reinforcing
Main material angle steel equivalent specifications to be reinforced on angle steel and transmission tower, the reinforcing angle are mutually repeatedly kicked by fixture with main material angle steel
Row is reinforced, and the fixture includes cross section profile and L-type clamping plate, and reinforcing angle and main material angle steel are located at cross section profile pair
In two angles claimed, two limbs of reinforcing angle are fixedly linked by two limbs of bolt and cross section profile, and L-type clamping plate is by main material
Angle steel pressing clip is among other two limb of cross section profile, between two limbs of L-type clamping plate and two limbs of cross section profile
It is connected by bolt.
As an improvement, the reinforcing angle is identical as main material angle steel length to be reinforced, grip separation is distributed in main material angle
On steel.
It is formed as an improvement, the cross section profile of the fixture is welded together opposite to each other by two angle steel, wherein with L-type
The connected two limb length of angle steel of clamping plate is greater than two limb length of main material angle steel.
As an improvement, the L-type splint material is identical as main material angle steel, two limb length of L-type clamping plate are greater than main material angle steel
Two limb length.
As an improvement, grip separation is uniformly distributed when reinforcing on the main material angle steel, layout pitch is not more than 1m.
As an improvement, the limb thickness of the L-type clamping plate and cross section profile is more than or equal to main material angle steel.
As an improvement, every limb of the L-type clamping plate is connected at least through two bolts with cross section profile, reinforcing angle
Every limb be also connected at least through two bolts with cross section profile.
The beneficial effects of the utility model are as follows:
A kind of transmission tower fixture Scheme of Strengthening described in the utility model mainly carries out Dam Foundation Strengthened in Situ to main material angle steel,
The working condition of existing transmission tower is not influenced, and is not punched to former main material, is not welded.The characteristics of being only bolted.It is right
It is substantially not damaged in original structure.Therefore, high reliablity, operation is easy, and applicability is wide.The Scheme of Strengthening have easy construction,
The advantages that good economic benefit, less time cost and enough reliabilities.
Detailed description of the invention
Fig. 1 is the utility model fixture bracing means structural schematic diagram.
Fig. 2 is that the utility model fixture bracing means reinforces main material angle steel schematic diagram.
Fig. 3 is the utility model L-type clamping plate schematic diagram.
Appended drawing reference 1- main material angle steel, 2- reinforcing angle, 3-L type clamping plate, 4- cross section profile, 5- bolt, 6- fixture,
7- bolt hole.
Specific embodiment
Illustrate the content of the utility model below in conjunction with specific embodiments.
As shown in Figure 1 to Figure 3, it is a kind of fixture bracing means of transmission tower main material of the utility model, including reinforces angle
Steel 2 and fixture 6, common single angle with equal legs (L B × t) component of the existing transmission tower in China, the equal limbs angle as main material angle steel 1
Steel dependent cross-section geometric parameter are as follows: sectional area A0, center of gravity is away from Z0, section is to weak axis y0-y0Resistance the moment of inertia is Iy0；The reinforcing
1 equivalent specifications of main material angle steel to be reinforced on angle steel 2 and transmission tower, the reinforcing angle 2 pass through fixture 6 and main material angle steel 1
It is connected and is reinforced, the fixture 6 includes cross section profile 4 and L-type clamping plate 3, and L-type clamping plate 3 selects intensity to be equal to main material angle
The steel of 1 intensity of steel make, and thickness is equal to main material angle steel 1 limb thickness t, area of section Aa；Reinforcing angle 2 and 1, main material angle steel
In in 4 symmetrical two angles of cross section profile, two limbs of reinforcing angle 2 are solid by two limbs of bolt 5 and cross section profile 4
It is fixed to be connected, L-type clamping plate 3 by 1 pressing clip of main material angle steel among other two limb of cross section profile 4, two limbs of L-type clamping plate 3
It is connected between two limbs of cross section profile 4 by bolt 5.
The reinforcing angle 2 is identical as 1 length of main material angle steel to be reinforced, and the interval of fixture 6 is evenly distributed on main material angle steel 1
On, layout pitch is not more than 1m, and 3 material of L-type clamping plate can be identical as main material angle steel 1, and two limb length of L-type clamping plate 3 are big
In two limb length of main material angle steel 1.
The cross section profile 4 of the fixture 6 is welded together opposite to each other by two angle steel to be formed, wherein with 3 phase of L-type clamping plate
Two limb length of angle steel even is greater than two limb length of main material angle steel 1.The limb thickness of the L-type clamping plate 3 and cross section profile 4 is greater than
Or it is equal to main material angle steel 1, every limb of the L-type clamping plate 3 is connected at least through two bolts 5 with cross section profile 4, reinforces
Every limb of angle steel 2 is also connected at least through two bolts 5 with cross section profile 4.
The utility model uses Dam Foundation Strengthened in Situ, does not punch to main material angle steel 1, to former component without any destruction；No
It is reinforced by way of welding, to the Small side effects of former bar tower structure.
After the completion of reinforcing, shaft tower component becomes the symmetrical star section combination angle steel of twin shaft from L tee section form, this is practical
The moment of inertia is resisted in the novel section for increasing component, to increase its radius of gyration, and then is reduced main material and is calculated slenderness ratio, finally
Achieve the purpose that increase main material stability bearing capacity.
The symmetrical star section of twin shaft combines angle steel after reinforcing, before cross section geometric parameter is relative to reinforcing: sectional area increases
Add to A1, center of gravity is away from Z0Increase to Z1, section forms new weak axis y1-y1, section is to new weak axis y1-y1Resistance the moment of inertia is Iy1；
Section forms new parallel axes x1-x1, section is I to the resistance the moment of inertia of new parallel axesx1.In practical application, when main material angle steel 1
When compression damage, reinforcing angle 2 and fixture 6 also do not have any visible deformation and destruction.Its reinforcement effect is real by original
The elastic side support that main material angle steel 1 is provided.To improve the bending stiffness in section, so as to avoid entirety around weak axis
Bending-buckling, the torsional buckling that component is finally evolved into partial cross section destroy.Realize the raising to ultimate bearing capacity.
According to a large amount of experimental study, fixture 6 proposed in this paper is arranged as preferred arrangement, respectively in end and intermediate setting
Three fixtures 6.Away from arranging first fixture 6 at component ends 40mm, fixture 6 having a size of L160 × 10, the bolt 5 that uses for
The high-strength bolt of 8.8 grades of M20 × 65, angle steel length are 1400mm, and spacing is 580mm between two clamp central points.
It is corresponding according to " overhead power transmission line pole tower structure-design technique regulation " (DL/T5154-2012) (lower referred to as to provide)
Calculation method 6.1.3 item, the stability bearing capacity of main material depend on its coefficient of stability Mainly have with the slenderness ratio of main material
It closes.Under normal conditions, according to table 6.1.8-1 in " regulation ", main material is shown as according to the difference of supporting condition around former weak axis
y0-y0Unstability or around former parallel axes x0-x0Unstability.This reinforcement means passes through the elastic side branch that provides to original to main material
Support.To improve the bending stiffness in section, so as to avoid entirety around the bending-buckling of weak axis, component is finally evolved into part and cuts
The torsional buckling in face destroys.Realize the raising to ultimate bearing capacity.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (7)
1. a kind of fixture bracing means of transmission tower main material, it is characterised in that: including reinforcing angle and fixture, the reinforcing angle
Main material angle steel equivalent specifications to be reinforced on steel and transmission tower, the reinforcing angle are connected progress by fixture with main material angle steel
It reinforces, the fixture includes cross section profile and L-type clamping plate, and it is symmetrical that reinforcing angle and main material angle steel are located at cross section profile
Two angles in, two limbs of reinforcing angle are fixedly linked by two limbs of bolt and cross section profile, and L-type clamping plate is by main material angle
Steel pressing clip leads between two limbs of L-type clamping plate and two limbs of cross section profile among other two limb of cross section profile
Bolt is crossed to be connected.
2. fixture bracing means as described in claim 1, it is characterised in that: the reinforcing angle and main material angle steel to be reinforced
Length is identical, and grip separation is distributed on main material angle steel.
3. fixture bracing means as claimed in claim 2, it is characterised in that: the cross section profile of the fixture is by two angles
Steel welds together composition opposite to each other, wherein the two limb length of angle steel being connected with L-type clamping plate is greater than two limb length of main material angle steel.
4. fixture bracing means as claimed in claim 2, it is characterised in that: the L-type splint material is identical as main material angle steel,
Two limb length of L-type clamping plate are greater than two limb length of main material angle steel.
5. fixture bracing means as claimed in claim 2, it is characterised in that: when being reinforced on the main material angle steel, grip separation
It is uniformly distributed, layout pitch is not more than 1m.
6. fixture bracing means as claimed in claim 2, it is characterised in that: the limb of the L-type clamping plate and cross section profile
Thickness is more than or equal to main material angle steel.
7. fixture bracing means as claimed in claim 2, it is characterised in that: every limb of the L-type clamping plate is at least through two
Bolt is connected with cross section profile, and every limb of reinforcing angle is also connected at least through two bolts with cross section profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821854129.9U CN209369396U (en) | 2018-11-12 | 2018-11-12 | A kind of fixture bracing means of transmission tower main material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821854129.9U CN209369396U (en) | 2018-11-12 | 2018-11-12 | A kind of fixture bracing means of transmission tower main material |
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| CN209369396U true CN209369396U (en) | 2019-09-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177372A (en) * | 2020-09-30 | 2021-01-05 | 南方电网科学研究院有限责任公司 | Power transmission angle steel tower and reinforcing method for main material of power transmission angle steel tower |
| CN112989483A (en) * | 2021-05-19 | 2021-06-18 | 广东电网有限责任公司湛江供电局 | Simplified calculation method and device for instability bearing capacity of double-spliced T-shaped combined reinforced angle steel |
| CN113685059A (en) * | 2021-09-17 | 2021-11-23 | 山东大学 | Anti-buckling reinforcing device for improving stability of angle steel |
| CN114517592A (en) * | 2021-12-31 | 2022-05-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Iron tower angle steel reinforcing structure and reinforcing method |
-
2018
- 2018-11-12 CN CN201821854129.9U patent/CN209369396U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177372A (en) * | 2020-09-30 | 2021-01-05 | 南方电网科学研究院有限责任公司 | Power transmission angle steel tower and reinforcing method for main material of power transmission angle steel tower |
| CN112989483A (en) * | 2021-05-19 | 2021-06-18 | 广东电网有限责任公司湛江供电局 | Simplified calculation method and device for instability bearing capacity of double-spliced T-shaped combined reinforced angle steel |
| CN113685059A (en) * | 2021-09-17 | 2021-11-23 | 山东大学 | Anti-buckling reinforcing device for improving stability of angle steel |
| CN113685059B (en) * | 2021-09-17 | 2022-08-26 | 山东大学 | Anti-buckling reinforcing device for improving stability of angle steel |
| CN114517592A (en) * | 2021-12-31 | 2022-05-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Iron tower angle steel reinforcing structure and reinforcing method |
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