CN111255290A - Steel angle buckling-restrained reinforcing device for power transmission tower - Google Patents
Steel angle buckling-restrained reinforcing device for power transmission tower Download PDFInfo
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- CN111255290A CN111255290A CN202010118874.2A CN202010118874A CN111255290A CN 111255290 A CN111255290 A CN 111255290A CN 202010118874 A CN202010118874 A CN 202010118874A CN 111255290 A CN111255290 A CN 111255290A
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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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
- E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
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Abstract
The invention relates to a buckling-restrained reinforcing device for angle steel of a power transmission tower, which comprises an outer connecting piece, an inner connecting pre-tightening outer piece, an inner connecting pre-tightening inner piece, an inner connecting piece and a first bolt, wherein the outer connecting piece is fixedly connected with the inner connecting pre-tightening inner piece; the outer connecting piece comprises a first steel plate and a second steel plate, one end of the first steel plate is hinged with the inner connecting pre-tightening outer piece, and the other end of the first steel plate is connected with one end of the second steel plate in an L shape; the other end of the second steel plate is hinged with the internal connection pre-tightening internal part; the inner connection pre-tightening outer piece and the inner connection pre-tightening inner piece are locked through a first bolt; the outer connecting piece is used for being arranged on the outer side of the angle steel of the power transmission tower, the inner connecting piece is used for being arranged on the inner side of the angle steel of the power transmission tower, and the inner connecting pre-tightening outer piece and the inner connecting pre-tightening inner piece lock the inner connecting piece on the inner side of the angle steel of the power transmission tower through the first bolt, so that the angle steel of the power transmission tower is reinforced. The invention can effectively improve the buckling-restrained reinforcing effect of the angle steel of the power transmission iron tower.
Description
Technical Field
The invention relates to the field of iron tower reinforcing devices, in particular to a steel angle anti-buckling reinforcing device for a power transmission iron tower.
Background
With the rapid development of economy in China, the mileage of a power transmission line is continuously increased, and the cardinality of a power transmission iron tower is continuously increased. Along with the increase of the service time of the power transmission iron tower, the angle steel rod piece of the power transmission iron tower continuously ages, when the power transmission line is acted by extreme weather such as typhoon in coastal areas, the power transmission iron tower is damaged due to the failure (mostly buckling) of the angle steel, and the power of the whole line is cut off, so that great economic loss is brought to industrial and agricultural production and people life. Therefore, the angle steel reinforcing device for the power transmission iron tower, which is safe, reliable and convenient to construct, is designed, and has important significance for reinforcing the in-service iron tower, improving the running safety of the in-service iron tower and ensuring the smoothness of industrial and agricultural production and people's life.
From the angle steel reinforcing device for the transmission tower disclosed at present, a member parallel connection reinforcing angle steel mode (a new combined member is formed after a new member is connected in parallel to the side surface of an original member), a transverse partition surface increasing mode and a T-shaped combined angle steel reinforcing method (consisting of reinforced angle steel, reinforcing angle steel and connecting pieces) are mainly adopted. The technical problems of the methods are as follows:
(1) the way of connecting the components in parallel to reinforce the angle steel: the connection of the angle steel reinforcing device needs to drill holes (apply bolt connection) on the reinforced angle steel mostly, the original angle steel is damaged, the construction is very inconvenient, and the reinforcing device only acts on the single flange single side of the angle steel, so that the reinforcing effect is poor. The T-shaped combined angle steel reinforcing method comprises the following steps: the buckling of the single flange of the reinforced angle steel to the outside can be prevented, the buckling of the single flange to the inside cannot be prevented, and the buckling of the other flange cannot be prevented.
(2) Increase the horizontal plane mode: the dynamic characteristic and the integral lateral resistance of the power transmission tower structure can be improved, but the local buckling effect of the rod piece is not obvious.
Disclosure of Invention
The invention provides a steel angle anti-buckling reinforcing device for a power transmission tower, aiming at overcoming the defect of poor steel angle anti-buckling reinforcing effect of the power transmission tower in the prior art.
The reinforcing device comprises an outer connecting piece, an inner connecting pre-tightening outer piece, an inner connecting pre-tightening inner piece, an inner connecting piece and a first bolt;
the outer connecting piece comprises a first steel plate and a second steel plate, one end of the first steel plate is hinged with the inner connecting pre-tightening outer piece, and the other end of the first steel plate is connected with one end of the second steel plate in an L shape; the other end of the second steel plate is hinged with the internal connection pre-tightening internal part;
the inner connection pre-tightening outer piece and the inner connection pre-tightening inner piece are locked through a first bolt;
the outer connecting piece is used for locating the transmission tower angle steel outside, install the right angle outside with the transmission tower angle steel when the outer connecting piece is installed promptly, the in-connection union piece is used for locating the transmission tower angle steel inboard, be used for installing the right angle inboard at the angle steel when the in-connection union piece is installed promptly, in-connection pretension outer piece and in-connection pretension internals lock the in-connection union piece in the transmission tower angle steel inboard through first bolt to realize the reinforcement of transmission tower angle steel.
Preferably, the inner connecting member is a trapezoidal steel bar.
Preferably, the trapezoidal billet is isosceles trapezoid billet, and the contained angle between two hypotenuses of isosceles trapezoid is 90.
Preferably, the reinforcing device is further provided with a second bolt;
the trapezoidal steel bar, the inner connection pre-tightening outer piece and the inner connection pre-tightening inner piece are respectively provided with a screw hole matched with the second bolt,
screw holes on the trapezoidal steel bars penetrate through the top edge and the bottom edge of the trapezoid of the trapezoidal steel bars;
the second bolt penetrates through the trapezoidal steel bar, the inner connection pre-tightening outer piece and the screw hole on the inner connection pre-tightening inner piece in sequence to fasten the trapezoidal steel bar, the inner connection pre-tightening outer piece and the inner connection pre-tightening inner piece together.
Preferably, the inner connection pretension internal part is a Z-shaped steel plate.
Preferably, the inner connection pretension internal member comprises a third steel plate, a fourth steel plate and a fifth steel plate,
one end of the third steel plate is hinged with the outer connecting piece, the other end of the third steel plate is connected with one end of the fourth steel plate, and the other end of the fourth steel plate is connected with the fifth steel plate;
an included angle between the third steel plate and the fourth steel plate is 135 degrees, an included angle between the fourth steel plate and the fifth steel plate is 135 degrees, and the third steel plate is parallel to the fifth steel plate;
preferably, the distance between the third steel plate and the fifth steel plate is equal to the thickness of the inner connecting pretensioning outer piece.
Preferably, a 45-degree cutting angle is arranged at one end, far away from the end connected with the fourth steel plate, of the fifth steel plate, and a 45-degree cutting angle is arranged at one end, far away from the end hinged with the outer connecting piece, of the inner connecting pre-tightening outer piece;
after the internal connection pretension internal part and the internal connection pretension external part are fastened, a 45-degree cut angle on the internal connection pretension external part is attached to one surface of a fourth steel plate, the other surface of the fourth steel plate is attached to one right-angle side on the inner side of the angle steel of the transmission tower, and a 45-degree cut angle on the fifth steel plate is attached to the other right-angle side on the inner side of the angle steel of the transmission tower.
Preferably, the first steel plate and the second steel plate are integrally formed.
Preferably, the third steel plate, the fourth steel plate and the fifth steel plate are integrally formed.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that: the invention adopts a bolt connection reinforcing mode, so that the site construction is convenient and fast; the bolt for reinforcing is arranged on the outer side of the reinforced angle steel, so that the reinforced angle steel is prevented from being drilled, the damage to the reinforced angle steel can be effectively reduced, and the construction inconvenience caused by drilling on the reinforced angle steel is avoided; the reinforcing member can be assembled in advance or on the reinforcing site, so that the reinforcing work is more flexible, and the transportation burden can be effectively reduced; the method can be used for permanent reinforcement of the transmission tower and temporary reinforcement (for example, when tools with heavy dead weight are needed to be used on the tower or large external loads are needed to be applied during maintenance of the transmission tower, or when strong wind happens in local areas); the inner side and the outer side of the angle steel flange are reinforced simultaneously, so that the reinforcing effect is better.
Drawings
Fig. 1 is a schematic view of a steel pylons angle steel buckling-restrained reinforcing device in embodiment 1.
Fig. 2 is a schematic view of an external connection.
FIG. 3 is a schematic view of an inner connection pretensioning outer member.
FIG. 4 is a schematic view of an inner connection pretensioning inner member.
FIG. 5 is a schematic view of an interconnect.
In the figure, 1-external connecting piece, 2-internal connecting pre-tightening external piece, 3-internal connecting pre-tightening internal piece, 4-internal connecting piece, 5-first bolt, 6-second bolt, 7-third bolt, 8-angle steel of transmission tower, 1.1-first steel plate, 1.2-second steel plate, 3.1-third steel plate, 3.2-fourth steel plate and 3.3-fifth steel plate.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
The embodiment provides a steel angle anti-buckling reinforcing device for a power transmission tower, which comprises an outer connecting piece 1, an inner connecting pre-tightening outer piece 2, an inner connecting pre-tightening inner piece 3, an inner connecting piece 4 and a first bolt 5, wherein the inner connecting pre-tightening outer piece 2 is connected with the inner connecting pre-tightening inner piece 3;
the outer connecting piece 1 comprises a first steel plate 1.1 and a second steel plate 1.2, one end of the first steel plate 1.1 is hinged with the inner connecting pre-tightening outer piece 2, and the other end of the first steel plate is connected with one end of the second steel plate 1.2 in an L shape; the other end of the second steel plate 1.2 is hinged with the internal connection pre-tightening internal part 3;
the inner connection pre-tightening outer piece 2 and the inner connection pre-tightening inner piece 3 are locked through a first bolt 5;
the outer connecting piece 1 is used for being arranged on the outer side of the angle steel of the power transmission tower, the inner connecting piece 4 is used for being arranged on the inner side of the angle steel of the power transmission tower, the inner connecting pre-tightening outer piece 2 and the inner connecting pre-tightening inner piece 3 lock the inner connecting piece 4 on the inner side of the angle steel of the power transmission tower through the first bolt 5, and therefore the reinforcement of the angle steel of the power transmission tower 8 is achieved.
After the outer connecting piece 1, the inner connecting pre-tightening outer piece 2 and the inner connecting pre-tightening inner piece 3 are locked, the three are in a right-angled triangle shape, the first steel plate 1.1 and the second steel plate 1.2 are right-angled sides of the right-angled triangle respectively, and the locked inner connecting pre-tightening outer piece 2 and the locked inner connecting pre-tightening inner piece 3 are combined into a hypotenuse of the right-angled triangle.
The inner connecting piece 4 is a trapezoidal steel bar.
Trapezoidal billet is isosceles trapezoid billet, and the contained angle between two hypotenuses of isosceles trapezoid is 90.
The reinforcing device is also provided with a second bolt 6;
the trapezoidal steel bar, the inner connection pre-tightening outer piece 2 and the inner connection pre-tightening inner piece 3 are respectively provided with a screw hole matched with the second bolt 6,
screw holes on the trapezoidal steel bars penetrate through the top edge and the bottom edge of the trapezoid of the trapezoidal steel bars;
the second bolt 6 passes through the trapezoidal steel bar, the inner connection pretension outer part 2 and the screw hole on the inner connection pretension inner part 3 in sequence to fasten the three parts together.
The inner connection pre-tightening internal part 3 is a Z-shaped steel plate.
The internal connection pretension internal part 3 comprises a third steel plate 3.1, a fourth steel plate 3.2 and a fifth steel plate 3.3,
one end of the third steel plate 3.1 is hinged with the outer connecting piece 1, the other end of the third steel plate is connected with one end of the fourth steel plate 3.2, and the other end of the fourth steel plate 3.2 is connected with the fifth steel plate 3.3;
the included angle between the third steel plate 3.2 and the fourth steel plate 3.2 is 135 degrees, the included angle between the fourth steel plate 3.2 and the fifth steel plate 3.3 is 135 degrees, and the third steel plate 3.1 is parallel to the fifth steel plate 3.3;
the distance between the third steel plate 3.1 and the fifth steel plate 3.3 is equal to the thickness of the inner connection pretensioning outer piece 2.
A 45-degree cutting angle is arranged at one end, far away from the end connected with the fourth steel plate 3.2, of the fifth steel plate 3.3, and a 45-degree cutting angle is arranged at one end, far away from the end hinged with the outer connecting piece 1, of the inner connecting pre-tightening outer piece 2;
after the internal connection pretension internal part 3 is fastened with the internal connection pretension external 2 parts, a 45-degree cut angle on the internal connection pretension external part 2 is attached to one surface of a fourth steel plate 3.2, the other surface of the fourth steel plate 3.2 is attached to one right-angle side on the inner side of the angle steel 8 of the transmission tower, and a 45-degree cut angle on the fifth steel plate 3.3 is attached to the other right-angle side on the inner side of the angle steel 8 of the transmission tower.
The first steel plate 1.1 and the second steel plate 1.2 are integrally formed.
The third steel plate 3.1, the fourth steel plate 3.2 and the fifth steel plate 3.2 are integrally formed.
As a specific example, the following details of the components of the present invention are given in conjunction with the specific cases:
this embodiment steel pylons angle steel buckling restrained brace reinforcing apparatus comprises four parts of outer connecting piece 1, inside connection pretension internals 3, inside connection pretension outer 2, inside connection piece 4, wherein:
the outer connecting piece 1 is 2 steel plates with the thickness of 8mm, namely a first steel plate 1.1 and a second steel plate 1.2 are mutually perpendicular to form an L-shaped welding part, the length of each steel plate is 300mm, and the net length of the inner side of the L-shaped welding part is the same as the width of a flange in an angle steel section. Welding circular steel pipes with the length of 75mm, the inner diameter of 10mm and the outer diameter of 15mm at 4 ends of the L-shaped flange, wherein the circular steel pipes are used for connecting the inner connection pre-tightening internal part 3 and the inner connection pre-tightening external part 2 by using a third bolt 7; in this embodiment, the steel pipe is matched with the third bolt 7 to realize the hinging of the external connecting piece 1 with the internal connecting pre-tightening external piece 2 and the internal connecting pre-tightening internal piece 3 respectively.
The inner connection pre-tightening outer part 2 is a steel plate with a straight-line-shaped section, the thickness of the steel plate is 8mm, the width of the steel plate is 150mm, the right end of the steel plate is welded with a round steel pipe with the length of 150mm, the inner diameter of 10mm and the outer diameter of 15mm, the inner walls of the two ends of the steel pipe within the range of 50mm are provided with threads and used for being connected with a third bolt in an outer connecting piece, the right end of the steel plate is subjected to corner cut, the angle of the corner cut is 45 degrees, 6 bolt holes are formed in the steel plate, the upper end and the lower end of the steel plate are respectively provided with 2 bolt holes with the diameter of 6mm, and the inner connection pre-tightening outer part 2 and the inner connection pre-tightening; the middle part of the steel plate is provided with 2 bolt holes with the diameter of 10mm, and the second bolt 6 is used for realizing the fastening among the inner connecting piece 4, the inner connecting pre-tightening outer piece 2 and the inner connecting pre-tightening inner piece 3; so that the inner connecting member 4 does not easily slip off.
The internal connection pretension internal part 3 (shown in figure 4) is a steel plate with a Z-shaped cross section, and comprises a third steel plate 3.1, a fourth steel plate 3.2 and a fifth steel plate 3.3, wherein the steel plate is 8mm in thickness and 150mm in width, the left end part of each steel plate is welded with a round steel pipe with the length of 150mm, the inner diameter of 10mm and the outer diameter of 15mm, the inner walls of the two ends of the steel pipe within the range of 50mm are both provided with threads for connecting with the external connecting part 1 by using bolts 1, the left end part of each steel plate is chamfered, the angle of the chamfer is 45 degrees, the right half part of the Z shape is provided with 6 bolt holes on the steel plate, and as shown in figure 4, the upper end and the lower end of each steel plate are respectively provided with 2 bolt holes with the diameter of 6mm, and the internal connection pretension internal part 3 is fastened by; the middle part of the steel plate is provided with 2 bolt holes with the diameter of 10mm, and the second bolt 6 is used for realizing the fastening among the inner connecting piece 4, the inner connecting pre-tightening outer piece 2 and the inner connecting pre-tightening inner piece 3; so that the inner connecting member 4 does not easily slip off.
The inner connecting piece 4 (as shown in fig. 5) is a steel bar with a trapezoidal section, the thickness of the steel bar and the length of the upper edge and the lower edge of the trapezoid are determined according to the width of the flange of the angle steel, the length of the steel bar is 300mm, the middle part of the steel bar is provided with 2 bolt holes (without threads) with the diameter of 10mm, and the second bolt 6 is used for fastening the inner connecting piece 4, the inner connecting pretension outer piece 2 and the inner connecting pretension inner piece 3; so that the inner connecting 4 pieces do not easily slip off.
In the specific implementation process, the specific installation method is as follows:
(1) determining a weak part (a part needing to be reinforced) of the power transmission tower through theoretical analysis or numerical simulation;
(2) according to the requirement, the inner connection pre-tightening outer piece 1, the inner connection pre-tightening inner piece 3 and the inner connection piece 4 can be connected and combined together by the second bolt 6 in a component processing field or a starting place for carrying out reinforcement work, and in order to reduce the inconvenience degree of transportation, the outer connection piece 1 and the inner connection pre-tightening inner piece 3 are connected together by the third bolt 7 on a construction site, and then the outer connection piece 1 and the inner connection pre-tightening outer piece 2 are connected together by the third bolt 7;
(3) arranging an on-line at the same horizontal position on the outer side and the inner side of a flange of an angle steel 8 of the power transmission tower to be reinforced;
(4) installing the integrally assembled connecting piece on the outer side of the angle steel to be reinforced, wherein the lower edge of the outer connecting piece is flush with the installation position of the outer side of the flange of the angle steel to be reinforced;
(5) a magnet is placed on the outer side of the flange of the outer connecting piece 1 and is temporarily fixed on the angle steel 8 of the power transmission tower;
(6) installing an inner connecting piece 4 close to the inner side of the flange of the angle steel 8 of the reinforced power transmission tower, wherein the lower edge of the inner connecting piece is flush with the installation position of the inner side of the flange of the reinforced angle steel;
(7) rotating the inner connection pre-tightening internal part 3 clockwise to enable the inner connection pre-tightening internal part to be tightly attached to the inner connection part 4, and rotating the inner connection pre-tightening external part 2 anticlockwise to enable the inner connection pre-tightening internal part 3 to be tightly attached to the inner connection pre-tightening internal part;
(8) screwing 4 first bolts 5 into 4 bolt holes with 6mm diameters above and below the internal connection pre-tightening external piece, and connecting two components of the internal connection pre-tightening internal piece 3 and the internal connection pre-tightening external piece 2 together;
(9) and 2 second bolts 6 are screwed into 2 bolt holes (with threads) with the diameter of 10mm in the middle of the internal connection pre-tightening external piece, so that the angle steel 8 of the reinforced transmission tower, the external connecting piece 1, the internal connecting piece 4, the internal connection pre-tightening internal piece 3 and the internal connection pre-tightening external piece 2 are fastened together. Therefore, the angle steel reinforcement is finished.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The angle steel buckling-restrained reinforcing device for the power transmission iron tower is characterized by comprising an outer connecting piece, an inner connecting pre-tightening outer piece, an inner connecting pre-tightening inner piece, an inner connecting piece and a first bolt;
the outer connecting piece comprises a first steel plate and a second steel plate, one end of the first steel plate is hinged with the inner connecting pre-tightening outer piece, and the other end of the first steel plate is connected with one end of the second steel plate in an L shape; the other end of the second steel plate is hinged with the internal connection pre-tightening internal part;
the inner connection pre-tightening outer piece and the inner connection pre-tightening inner piece are locked through a first bolt;
the outer connecting piece is used for being arranged on the outer side of the angle steel of the power transmission tower, the inner connecting piece is used for being arranged on the inner side of the angle steel of the power transmission tower, and the inner connecting pre-tightening outer piece and the inner connecting pre-tightening inner piece lock the inner connecting piece on the inner side of the angle steel of the power transmission tower through the first bolt, so that the angle steel of the power transmission tower is reinforced.
2. The device for reinforcing and preventing buckling of angle iron for power transmission towers according to claim 1, wherein the cross section of the inner connecting member is trapezoidal.
3. The device for reinforcing and preventing buckling of angle steel for power transmission towers according to claim 2, wherein the inner connecting member is a trapezoidal steel bar.
4. The angle iron angle steel buckling-restrained reinforcing device for transmission towers of claim 3, wherein the trapezoidal steel bar is an isosceles trapezoid steel bar, and an included angle between two oblique sides of the isosceles trapezoid is 90 °.
5. The angle iron angle steel buckling-restrained reinforcing device as claimed in claim 3 or 4, wherein the reinforcing device is further provided with a second bolt;
the inner connecting piece, the inner connecting pre-tightening outer piece and the inner connecting pre-tightening inner piece are respectively provided with a screw hole matched with the second bolt,
screw holes on the trapezoidal steel bars penetrate through the top edge and the bottom edge of the trapezoid of the trapezoidal steel bars;
the second bolt penetrates through the trapezoidal steel bar, the inner connection pre-tightening outer piece and the screw hole on the inner connection pre-tightening inner piece in sequence to fasten the trapezoidal steel bar, the inner connection pre-tightening outer piece and the inner connection pre-tightening inner piece together.
6. The angle iron angle steel buckling-restrained reinforcing device as claimed in claim 5, wherein the cross section of the inner connection pretension internal member is Z-shaped.
7. The angle iron angle steel for power transmission towers of claim 6, wherein the internal connection pretension internal member comprises a third steel plate, a fourth steel plate and a fifth steel plate,
one end of the third steel plate is hinged with the outer connecting piece, the other end of the third steel plate is connected with one end of the fourth steel plate, and the other end of the fourth steel plate is connected with the fifth steel plate;
the included angle between the third steel plate and the fourth steel plate is 135 degrees, the included angle between the fourth steel plate and the fifth steel plate is 135 degrees, and the third steel plate is parallel to the fifth steel plate.
8. The angle iron angle steel buckling-restrained reinforcing device of claim 7, wherein the distance between the third steel plate and the fifth steel plate is equal to the thickness of the inner connection pretension outer piece.
9. The angle steel for power transmission towers according to claim 8, wherein a 45-degree cut angle is formed at one end of the fifth steel plate, which is far away from the end connected with the fourth steel plate, and a 45-degree cut angle is formed at one end of the inner connecting pretension outer member, which is far away from the end hinged with the outer connecting member;
after the internal connection pretension internal part and the internal connection pretension external part are fastened, a 45-degree cut angle on the internal connection pretension external part is attached to one surface of a fourth steel plate, the other surface of the fourth steel plate is attached to one right-angle side on the inner side of the angle steel of the transmission tower, and a 45-degree cut angle on the fifth steel plate is attached to the other right-angle side on the inner side of the angle steel of the transmission tower.
10. The angle iron angle steel buckling-restrained reinforcing device as claimed in claim 1 or 9, wherein the first steel plate and the second steel plate are integrally formed; the third steel plate, the fourth steel plate and the fifth steel plate are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010118874.2A CN111255290A (en) | 2020-02-26 | 2020-02-26 | Steel angle buckling-restrained reinforcing device for power transmission tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010118874.2A CN111255290A (en) | 2020-02-26 | 2020-02-26 | Steel angle buckling-restrained reinforcing device for power transmission tower |
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| Publication Number | Publication Date |
|---|---|
| CN111255290A true CN111255290A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010118874.2A Pending CN111255290A (en) | 2020-02-26 | 2020-02-26 | Steel angle buckling-restrained reinforcing device for power transmission tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685059A (en) * | 2021-09-17 | 2021-11-23 | 山东大学 | Anti-buckling reinforcing device for improving stability of angle steel |
-
2020
- 2020-02-26 CN CN202010118874.2A patent/CN111255290A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685059A (en) * | 2021-09-17 | 2021-11-23 | 山东大学 | Anti-buckling reinforcing device for improving stability of angle steel |
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