Angle steel tower reinforcing device

Abstract

The utility model relates to the technical field of reinforcing devices, in particular to an angle steel tower reinforcing device which comprises an angle steel body, a mounting plate wraps the bottom end of the angle steel body, a first protective cylinder and a second protective cylinder are arranged outside the angle steel body and movably connected, and the first protective cylinder is connected with the second protective cylinder. And a space defined by the first protective cylinder, the second protective cylinder and the mounting plate is filled with a filling material for improving the bearing capacity of the angle steel body. The bearing capacity of the angle steel can be improved, the situation that deformation is too large due to local instability is prevented, and the fireproof performance, the anti-corrosion performance and the durability of the angle steel can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforcement devices, and particularly relates to a reinforcement device for an angle steel tower. Background Technique

[0002] The transmission angle steel tower-line system has the characteristics of high structure, large span of conductors and ground wires, and strong non-linearity. It is a wind-sensitive structure system. Severe storms are one of the most threatening natural disasters to transmission lines. Damage accidents of transmission lines caused by severe storms occur frequently. Especially, the main members or diagonal members generally have a large slenderness ratio and are prone to local buckling, causing the material to fail to reach the yield strength, resulting in huge deformation and premature failure. In this case, repairing and strengthening the angle steel tower can improve the overall strength.

[0003] The general reinforcement method of traditional angle steel towers is to use profiles to be connected to the main members through bolts to achieve the reinforcement purpose, or to fix the reinforcement members on the profiles by welding, or to use fixtures to fix the reinforcement profiles and the main members. However, the above three reinforcement methods are complex in operation. And if steel members are used to reinforce the corroded and damaged angle steel, these steels are still exposed to the external environment and will also be corroded and damaged by the external environment. Moreover, arranging bolt holes on the angle steel will cause stress concentration on the angle steel and reduce the bearing capacity of the existing steel section. When using welding for reinforcement, welding will generate residual stress on the main members, and the weld seams are also prone to cracks. Similarly, when using fixtures for reinforcement, it is difficult to guarantee the service life of the fixtures, and the construction requirements are relatively high. Otherwise, the fixtures are easy to loosen and cannot achieve the reinforcement purpose.

[0004] Therefore, it is necessary to provide a reinforcement device for an angle steel tower to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a reinforcement device for an angle steel tower, which can improve the bearing capacity of the angle steel, prevent the situation of excessive deformation caused by local buckling, and can also effectively improve the fire resistance, corrosion resistance and durability of the angle steel through the outer wrapping structure.

[0006] A reinforcement device for an angle steel tower provided by the utility model includes:

[0007] A reinforcement device for an angle steel tower, characterized in that it includes: an angle steel body, an installation plate wraps the bottom end of the angle steel body, a first protective cylinder and a second protective cylinder are arranged outside the angle steel plate body, the first protective cylinder and the second protective cylinder are movably connected, and a filler for improving the bearing capacity of the angle steel body is filled in the space jointly enclosed by the first protective cylinder, the second protective cylinder and the installation plate.

[0008] Preferably, the mounting plate includes an L-shaped first mounting plate which is located outside the bottom of the angle steel body so as to cover the outer corner end of the angle steel body. A rectangular second mounting plate is arranged at the inner corner end of the angle steel body, and a third mounting plate and a fourth mounting plate are filled in the fitting gap between the first mounting plate and the second mounting plate.

[0009] Preferably, the first protective cylinder and the second protective cylinder are of semi-circular structures. First left connecting plates and first right connecting plates are respectively arranged at both ends of the first protective cylinder, and second left connecting plates and second right connecting plates are respectively arranged at both ends of the second protective cylinder. The first left connecting plate is movably connected with the second left connecting plate, and the first right connecting plate is movably connected with the second right connecting plate.

[0010] Preferably, a plurality of first screw holes are equidistantly formed on the outer surface of the first left connecting plate, second screw holes matched with the first screw holes are equidistantly formed on the outer surface of the second left connecting plate, and the first screw holes are connected with the second screw holes through headless screws.

[0011] Preferably, an epoxy resin glue layer is coated on the outer surface of the headless screw.

[0012] Preferably, one end of the coil is adhered to the outer surface of the first protective cylinder, and the other end of the coil is radially wound around the first protective cylinder so as to wind and wrap the first protective cylinder and the second protective cylinder.

[0013] Preferably, the first protective cylinder and the second protective cylinder are made of fiber reinforced plastics.

[0014] The technical solution of the present utility model has the following beneficial effects:

[0015] 1. By wrapping the first protective cylinder and the second protective cylinder outside the angle steel body where local buckling occurs, and the first protective cylinder and the second protective cylinder are made of fiber reinforced plastics. The first protective cylinder and the second protective cylinder cooperate with the filler to form a buckling-resistant support, which jointly bears force with the angle steel, improves the bearing capacity of the angle steel, prevents excessive deformation caused by local buckling, and enables the angle steel tower to be used normally. At the same time, the outer wrapping structure formed by the first protective cylinder and the second protective cylinder can also isolate the angle steel from the external environment, greatly improving the fire resistance, corrosion resistance and durability of the angle steel. The mounting plate installed at the bottom is used to prevent the filler from falling.

[0016] 2. Due to the existence of the free space formed by each protective cylinder and the mounting plate, the filler can be put in. By selecting a suitable filler, the effect of improving the bearing capacity of the angle steel can be achieved.

[0017] 3. Through the epoxy resin glue layer, the present utility model can protect the headless screws and prevent the headless screws from being corroded by the external environment. Description of the Drawings

[0018] Figure 1 is the front view of the present utility model;

[0019] Figure 2 is the perspective view of the present utility model;

[0020] Figure 3 is the assembled state diagram of the first protective cylinder and the second protective cylinder;

[0021] Figure 4 is the assembly schematic diagram of the first mounting plate and the second mounting plate in the top view state;

[0022] Reference numerals in the figure: 1, angle steel body; 2, first protective cylinder; 3, second protective cylinder; 4, button head screw; 5, mounting plate; 6, coil material; 7, first left connecting plate; 8, first right connecting plate; 9, first screw hole; 10, second left connecting plate; 11, second right connecting plate; 12, second screw hole; 13, first mounting plate; 14, second mounting plate; 15, third mounting plate; 16, fourth mounting plate. Specific embodiments

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] Reference Figure 1-2 , a kind of angle steel tower reinforcement device provided by the present utility model includes: an angle steel body 1, a plurality of mounting plates 5 are adhesively fixed to the bottom of the angle steel body 1 for wrapping the bottom end of the angle steel body 1, a first protective cylinder 2 and a second protective cylinder 3 are arranged outside the angle steel plate body, the first protective cylinder 2 and the second protective cylinder 3 are movably connected, and a light-weight and high-strength filling material is arranged in the space enclosed by the first protective cylinder 2 and the second protective cylinder 3. In design, the structure of the first protective cylinder 2 is the same as that of the second protective cylinder 3, and the first protective cylinder 2 and the second protective cylinder 3 are semi-circular structures.

[0025] It should be noted that: by wrapping the first protective cylinder 2 and the second protective cylinder 3 outside the angle steel body 1 where local buckling occurs, and the first protective cylinder 2 and the second protective cylinder 3 are made of fiber-reinforced plastics, the first protective cylinder 2 and the second protective cylinder 3 cooperate with the filling material to form a buckling-restrained brace, which jointly bears force with the angle steel, improves the bearing capacity of the angle steel, prevents excessive deformation caused by local buckling, and enables the angle steel tower to be unable to be used normally. At the same time, the angle steel is isolated from the external environment by the first protective cylinder 2 and the second protective cylinder 3, greatly improving the fire protection, anti-corrosion performance of the angle steel, having good durability, and mounting plates 5 are installed at its bottom to prevent the filling material from falling.

[0026] Meanwhile, the above-mentioned filler preferably has the following characteristics: it has solid and liquid states at normal temperature, and the curing method is simple, so that the filler can fill the gaps between the first protective cylinder 2, the second protective cylinder 3, the mounting plate 5 and the angle steel body 1 and bear the force together; it is light in weight and high in strength, and the steel connected to the angle steel body 1 will not be damaged due to reaching the ultimate bearing capacity by this reinforcement method; it is recommended to use a filler formed by mixing epoxy resin and polystyrene particles.

[0027] In the embodiment of the present utility model, referring to Figure 4 As shown, the mounting plate 5 includes an L-shaped first mounting plate 13, the first mounting plate 13 wraps around one end of the angle steel body 1, and the other end of the angle steel body 1 is wrapped with a rectangular second mounting plate 14. The two ends of the angle steel body 1 are respectively connected to a third mounting plate 15 and a fourth mounting plate 16.

[0028] It should be noted that: the first mounting plate 13 and the second mounting plate 14 can be uniformly made in large sizes and can be applicable to the reinforcement of angle steels of any size. The sizes of the third mounting plate 15 and the fourth mounting plate 16 can be made as required. At this time, referring to Figure 4 As shown, each mounting plate jointly encloses the bottom of the angle steel body 1, so that the bottom forms a structure similar to a platform, which is convenient for cooperating with the aforementioned protective cylinder and finally encloses a space for accommodating the filler.

[0029] During actual assembly, referring to Figure 3 As shown, the two ends of the first protective cylinder 2 are respectively provided with a first left connecting plate 7 and a first right connecting plate 8, the two ends of the second protective cylinder 3 are respectively provided with a second left connecting plate 10 and a second right connecting plate 11, the first left connecting plate 7 is movably connected to the second left connecting plate 10, and the first right connecting plate 8 is movably connected to the second right connecting plate 11. During processing, two sector-section columns with a central angle of 210° in the cross section can be used, and in the cross-section area with a central angle of 180° - 210° and 0° - 30°, half of the thickness is cut off from the inside and outside, and the structure of the first protective cylinder 2 and the second protective cylinder 3 can be formed.

[0030] Meanwhile, referring to Figure 3 As shown, a plurality of first screw holes 9 are equidistantly opened on the outer surface of the first left connecting plate 7, a plurality of second screw holes 12 matching the first screw holes 9 are equidistantly opened on the outer surface of the second left connecting plate 10, and the first screw holes 9 are connected to the second screw holes 12 through headless screws 4. During installation, the first screw holes 9 and the second screw holes 12 can be provided to facilitate the connection of the first left connecting plate 7 and the second left connecting plate 10. Headless screws 4 can be used for connection, and an epoxy resin glue layer is applied on the outer surface of the headless screws 4. Through the epoxy resin glue layer, the headless screws 4 can be protected to prevent the headless screws 4 from being corroded by the external environment.

[0031] In addition, after the coil material 6 is adhesively fixed to the outer surface of the first protective cylinder 2, for the extra lengths at both ends of the coil material 6, at least a length equal to one-fourth of the outer cross-sectional perimeter of the second protective cylinder 3 should be left at the adhesive end, and the length of the other end should be equal to the outer cross-sectional perimeter of the second protective cylinder 3, which facilitates the circumferential fixing, winding, and tying operation of the second protective cylinder 3.

[0032] The above are only the embodiments of the present invention, and do not thus limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present invention.

Claims

1. An angle steel tower reinforcement device, characterized in that, Comprising: An angle steel body (1), an installation plate (5) wraps the bottom end of the angle steel body (1), a first protective cylinder (2) and a second protective cylinder (3) are arranged outside the angle steel plate body, the first protective cylinder (2) and the second protective cylinder (3) are movably connected, and a filler for improving the bearing capacity of the angle steel body (1) is filled in the space jointly enclosed by the first protective cylinder (2), the second protective cylinder (3) and the installation plate (5).

2. The angle steel tower reinforcement device according to claim 1, characterized in that, The installation plate (5) includes an L-shaped first installation plate (13), the first installation plate (13) is located outside the bottom of the angle steel body (1) so as to cover the outer corner end of the angle steel body (1), a rectangular second installation plate (14) is arranged at the inner corner end of the angle steel body (1), and the fitting gap between the first installation plate (13) and the second installation plate (14) is filled with a third installation plate (15) and a fourth installation plate (16).

3. The angle steel tower reinforcement device according to claim 2, characterized in that, The first protective cylinder (2) and the second protective cylinder (3) are semi-circular structures; both ends of the first protective cylinder (2) are respectively provided with a first left connecting plate (7) and a first right connecting plate (8), both ends of the second protective cylinder (3) are respectively provided with a second left connecting plate (10) and a second right connecting plate (11), the first left connecting plate (7) and the second left connecting plate (10) are movably connected, and the first right connecting plate (8) and the second right connecting plate (11) are movably connected.

4. An angle steel tower reinforcement device according to claim 3, characterized in that, A plurality of first screw holes (9) are equidistantly formed on the outer surface of the first left connecting plate (7), a plurality of second screw holes (12) matching with the first screw holes (9) are equidistantly formed on the outer surface of the second left connecting plate (10), and the first screw holes (9) are connected to the second screw holes (12) through headless screws (4).

5. The angle steel tower reinforcement device according to claim 4, characterized in that, An epoxy resin glue layer is coated on the outer surface of the headless screw (4).

6. The angle steel tower reinforcement device according to claim 2, characterized in that, One end of a coil (6) is adhered to the outer surface of the first protective cylinder (2), and the other end of the coil (6) is radially wound around the first protective cylinder (2) so as to wind and wrap the first protective cylinder (2) and the second protective cylinder (3).

7. A steel angle tower reinforcement device according to claim 1, characterized in that, The first protective cylinder (2) and the second protective cylinder (3) are made of fiber-reinforced plastics.

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