Steel straining beam for tower limbs of separated main tower in bridge direction and using method of steel straining beam

Abstract

The invention provides a bridge-direction tower limb steel straining beam of a separated main tower and a using method, and belongs to the technical field of tower limb steel straining beams. Comprising a spliced steel straining beam assembly, sliding rail assemblies are arranged on the positions, close to the left side and the right side, of the top surface of the spliced steel straining beam assembly correspondingly, and sliding assemblies are arranged on the tops of all the sliding rail assemblies. The remote control device is installed on all electronic elements and matched with signals of the antenna control box, data are transmitted to the background in real time, in addition, the whole set of starting control authority is given to background workers, the rust detection assembly is started to detect whether the surfaces of the left side and the right side of the steel tie beam have rust or not, and if the rust is found, the remote control device is started. And after processing, a background worker starts a sliding assembly to drive a rust removal cleaning assembly to move slowly on the surface of a dirty sliding rail assembly, so that dust and rust removal operation is carried out by spraying a rust remover and starting cleaning rollers on the two sides at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of tower limb steel tie beams, and particularly relates to a separated main tower longitudinal bridge tower limb steel tie beam and a using method thereof. Background Art

[0002] In the construction of large bridges, such as the Sixth Luzhou Yangtze River Bridge, the steel tie beam is an important component for the main pier to transfer cable forces and resist the deformation of the pier column. It can enhance the integrity and stability of the bridge structure, ensuring the safety of the bridge when bearing external forces such as vehicle loads and wind loads. With the development and utilization of underground space in urban construction, foundation pit engineering is increasing in number and scale. In the foundation pit support system, the steel tie beam is used to connect the columns to form an integral structure, enhancing the stability of the columns and reducing the horizontal displacement, thereby ensuring the safety and stability of the foundation pit during construction. In the steel structures of some high-rise buildings or large buildings, the steel tie beam, as part of the support structure, bears the weight and various loads of the building, playing an important role in maintaining the overall structural stability of the building.

[0003] However, after the installation of some steel tie beams, subsequent cleaning operations and rust removal may require manual rust removal and cleaning operations using ladders or other climbing devices again, with a relatively high risk factor and high cost, which is inconvenient. If a high-strength rust removal and cleaning device is assembled on the surface after the installation of the steel tie beam, it can well improve the maintenance state of the steel tie beam and reduce labor costs, thus avoiding the danger of high-altitude operations for workers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a separated main tower longitudinal bridge tower limb steel tie beam and a using method thereof to solve the problem that after the installation of some existing steel tie beams, subsequent cleaning operations and rust removal may require manual rust removal and cleaning operations using ladders or other climbing devices again, with a relatively high risk factor.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A split main tower longitudinal bridge tower limb steel tie beam, including a spliced steel tie beam assembly. On the top surface of the spliced steel tie beam assembly, slide rail assemblies are respectively provided on the left and right sides. On the top of all the slide rail assemblies, a sliding assembly is provided. The left and right ends of the sliding assembly are respectively connected with rust removal and cleaning assemblies. The bottom of each rust removal and cleaning assembly is connected with a rust detection assembly. On the front and rear end surfaces of the spliced steel tie beam assembly, several high-strength bolt parts are arranged in a row. In the center of the top surface of the spliced steel tie beam assembly, an antenna control box is placed. The rust detection assembly includes an ultrasonic detector. At the front end of the ultrasonic detector, a detection head is provided. On the top surface of the ultrasonic detector, a magnetic suction port is opened. Inside the magnetic suction port, a universal magnetic suction rod is provided. The propagation speed and reflection characteristics of ultrasonic waves are different in different media. When ultrasonic waves encounter a rust layer and a metal matrix, due to their different acoustic impedances, reflected waves will be generated. By analyzing parameters such as the time and intensity of the reflected waves, the thickness of the rust layer can be determined. The data is transmitted to the background through the antenna control box to start the rust removal detection assembly.

[0007] Optionally, the spliced steel tie beam assembly includes three main beams. At the bottom of each main beam, a trapezoidal steel frame is provided. On the bottom surface of the trapezoidal steel frame, semi-circular grooves are respectively opened on the front and rear sides. The tops of the three main beams are covered with a cover plate. On the left and right sides of the cover plate, fixing plates are respectively provided at the front and rear end edges.

[0008] Optionally, the slide rail assembly includes a slide rail body. At the front and rear ends of the slide rail body, limit plates are respectively provided. On the left and right side surfaces of the slide rail body, several fixing holes are arranged in a row.

[0009] Optionally, the sliding assembly includes a fixed rod. At the left and right ends of the fixed rod, pulleys are respectively provided at the edges. At the left and right ends of the fixed rod, splicing rods are respectively provided. At the left and right ends of each splicing rod, an oval splicing plate and a power motor are respectively connected.

[0010] Optionally, the rust removal and cleaning assembly includes a rectangular placement and fixing part. Inside the rectangular placement and fixing part, a placement groove is opened. Inside the placement groove, a rust remover storage tank is provided. On the top of the rust remover storage tank, a storage port is opened.

[0011] Optionally, a water pump penetrates through the front end of the rust remover storage tank. The transmission end of the water pump is connected with a water pipe. One end of the water pipe is connected with a spray head. The top of the rust remover storage tank is covered with a rectangular sealing and fixing part. On the top of the rectangular sealing and fixing part, a sealing hole is provided.

[0012] Optionally, connecting rods are respectively connected to the left and right sides of the rectangular placement and fixing part. One end of each connecting rod is connected with an opening splicing plate.

[0013] Optionally, one end of the perforated splicing plate is provided with a mounting hole, and a rotating motor is arranged inside the mounting hole. The output end of the rotating motor is connected to the cleaning roller.

[0014] Optionally, the water pump and the rotating motor in the rust removal and cleaning component structure are equipped with remote control switches, which are matched with the signals of the antenna control box, and the control instructions come from the background.

[0015] A separable main tower longitudinal bridge tower limb steel tie beam and its usage method, including the following steps:

[0016] Including the following steps:

[0017] Step 1: First, install remote control switches on all power components used, match them with the signals of the antenna control box, and transmit the data to the background. The staff in the background will control the startup program of the whole set of devices.

[0018] Step 2: Weld and splice the three main beams and the three trapezoidal steel frames in the spliced steel tie beam component structure together respectively. Then, place the cover plate and the fixing plate on the top and splice them to form a tie beam. In addition, high-strength bolt parts are pre-installed and then fixed by welding.

[0019] Step 3: After installation, the rust detection component can be started to detect whether there is rust on the left and right surfaces of the tie beam. If rust is found, the data will be transmitted to the background through the antenna control box. After the staff in the background processes it, the sliding component will be started to drive the rust removal and cleaning component to slowly move on the surface of the dirty slide rail component to spray rust remover while starting the cleaning rollers on both sides to clean the dust and rust remover, so as to perform simple rust removal to keep the surface clean and durable.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above solution, all the electronic components provided by the present invention are installed with remote control devices, which are matched with the signals of the antenna control box, and the data is transmitted to the background in real time. In addition, the startup control authority of the whole set is also handed over to the staff in the background. The rust detection component is started to detect whether there is rust on the left and right surfaces of the tie beam. If rust is found, the data will be transmitted to the background through the antenna control box. After the staff in the background processes it, the sliding component will be started to drive the rust removal and cleaning component to slowly move on the surface of the dirty slide rail component to spray rust remover while starting the cleaning rollers on both sides to clean the dust and rust remover, so as to perform simple rust removal to keep the surface clean and durable.

[0022] The principle of setting the ultrasonic detector is as follows: The propagation speed and reflection characteristics of ultrasonic waves are different in different media. When ultrasonic waves encounter the rust layer and the metal matrix, due to their different acoustic impedances, reflected waves will be generated. By analyzing parameters such as the time and intensity of the reflected waves, the thickness of the rust layer can be determined. For example, when detecting the rust on the inner wall of a pipeline, the ultrasonic signals emitted by the ultrasonic sensor will have different reflections when encountering the rust and the metal pipe wall, and the thickness of the rust can be calculated based on these reflected signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the steel crossbeam of the tower limb in the longitudinal direction of the bridge of the split main tower;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the spliced steel crossbeam assembly;

[0026] Figure 3 It is a structural schematic diagram of the high-strength bolt;

[0027] Figure 4 It is an exploded structural schematic diagram of the spliced steel crossbeam assembly;

[0028] Figure 5 It is a structural schematic diagram of the slide rail assembly;

[0029] Figure 6 It is a structural schematic diagram of the sliding assembly;

[0030] Figure 7 It is a three-dimensional structural schematic diagram of the rust removal and cleaning assembly;

[0031] Figure 8 It is an exploded structural schematic diagram of the rust removal and cleaning assembly;

[0032] Figure 9 It is an exploded structural schematic diagram of the rust detection assembly.

[0033] [Reference Signs]

[0034] 1. Spliced steel girder assembly; 101. Main girder; 102. Trapezoidal steel frame; 103. Semi-circular groove; 104. Cover plate; 105. Fixed plate; 2. Slide rail assembly; 201. Slide rail body; 202. Limiting plate; 203. Fixed hole; 3. Sliding assembly; 301. Fixed rod; 302. Pulley; 303. Splicing rod; 304. Oval splicing plate; 305. Power motor; 4. Rust removal and cleaning assembly; 401. Rectangular placement and fixing part; 402. Placement groove; 403. Rust remover storage tank; 404. Storage port; 405. Water pump; 406. Water pipe; 407. Sprayer; 408. Rectangular sealing and fixing part; 409. Sealing hole; 410. Connecting rod; 411. Open-hole splicing plate; 412. Installation hole; 413. Rotary motor; 414. Cleaning roller; 5. Rust detection assembly; 501. Ultrasonic detector; 502. Detection head; 503. Magnetic suction port; 504. Universal magnetic suction rod; 6. High-strength bolt parts; 7. Antenna control box.

[0035] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed implementation manners

[0036] The following describes in detail a separated main tower longitudinal bridge tower limb steel girder and its usage method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0037] It should be pointed out that in the specification, it is mentioned that "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes this specific feature, structure or characteristic. In addition, when combining an embodiment to describe a specific feature, structure or characteristic, implementing such a feature, structure or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge scope of those skilled in the relevant art.

[0038] Generally, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, depending at least in part on the context, can alternatively allow for other factors that may not be explicitly described.

[0039] It will be understood that the meanings of "on", "above", and "over" in the present invention should be construed in the broadest manner such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but can also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0040] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the figures. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the figures. The device may be oriented in other ways, and the spatial relative descriptors used herein may be interpreted accordingly.

[0041] As Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a split main tower longitudinal bridge tower limb steel tie beam, which includes a spliced steel tie beam assembly 1. Slide rail assemblies 2 are respectively arranged on the top surface of the spliced steel tie beam assembly 1 near the left and right sides. A sliding assembly 3 is arranged on the top of all the slide rail assemblies 2. Rust removal and cleaning assemblies 4 are respectively connected to the left and right ends of the sliding assembly 3. A rust detection assembly 5 is connected to the bottom of each rust removal and cleaning assembly 4. A plurality of high-strength bolt parts 6 are respectively arranged in a row on the front and rear end surfaces of the spliced steel tie beam assembly 1. An antenna control box 7 is placed at the center of the top surface of the spliced steel tie beam assembly 1. The spliced steel tie beam assembly 1 includes three main beams 101. A trapezoidal steel frame 102 is arranged at the bottom of each main beam 101. Semi-circular grooves 103 are respectively opened on the bottom surface of the trapezoidal steel frame 102 near the front and rear sides. A cover plate 104 covers the tops of the three main beams 101. Fixing plates 105 are respectively arranged at the front and rear ends of the left and right sides of the cover plate 104. The slide rail assembly 2 includes a slide rail body 201. Limit plates 202 are respectively arranged at the front and rear ends of the slide rail body 201. A plurality of fixing holes 203 are respectively arranged in a row on the left and right side surfaces of the slide rail body 201. The sliding assembly 3 includes a fixing rod 301. Pulleys 302 are respectively arranged at the edges of the left and right ends of the fixing rod 301. Splicing rods 303 are respectively arranged at the left and right ends of the fixing rod 301. Oval splicing plates 304 and power motors 305 are respectively connected to the left and right ends of each splicing rod 303. The inside of the splicing rod 303 is grooved, and the output end of the power motor 305 is connected to the pulley 302. The rotating part of the pulley 302 does not contact the splicing rod 303. Therefore, when the pulley 302 rotates, it will not drive the splicing rods 303 on both sides and other connecting devices.

[0042] The integral steel crossbeam is pre-installed by using high-strength bolts 6, and welding is used for subsequent installation. There are two layers of installation and fixation methods in total. For high-strength bolt connection, first, clean the oil stains, rust and other impurities at the connection part between the steel crossbeam and the tower limb to ensure that the connection surface is flat and clean. According to the design requirements, install temporary bolts first when installing high-strength bolts to preliminarily fix the steel crossbeam. The quantity and spacing of the temporary bolts should meet the requirements. Replace them with formal high-strength bolts and tighten the high-strength bolts with a torque wrench according to the specified torque value. The tightening of high-strength bolts should be divided into initial tightening and final tightening. The initial tightening torque is generally 50% - 70% of the final tightening torque, and the final tightening torque should be determined according to the bolt specifications, performance grades and design requirements. During the tightening process, pay attention to ensuring that the axial tension of the bolts meets the requirements, and avoid missed tightening or over-tightening. After tightening, check the connection quality of the high-strength bolts. For example, check whether the exposed thread length of the bolts meets the requirements, and use the torque inspection method or axial force inspection method to spot-check the tightening force of the bolts. Then, after fixation, weld the surroundings again for tack welding to preliminarily fix the steel crossbeam to the tower limb. The length, spacing and thickness of the tack welding should meet the requirements of the welding process. After tack welding, check the welding quality. If defects are found, they should be processed in time. For formal welding, carry out welding according to the pre-determined welding sequence and parameters. During the welding process, pay attention to controlling the welding deformation. Symmetrical welding, segmental backstep welding and other methods can be used to reduce the welding deformation. At the same time, monitor the weld quality in real time. For example, check whether there are defects such as pores, slag inclusions, cracks, etc. on the weld appearance. If necessary, non-destructive testing methods such as ultrasonic flaw detection and radiographic inspection can be used.

[0043] Before installation, the steel crossbeam can be anti-corrosive treated and painted, which is divided into the following two steps:

[0044] Step 1, surface treatment. After the installation of the steel crossbeam is completed and inspected qualified, conduct anti-corrosive treatment on its surface. First, clean the surface of the steel crossbeam to remove dust, oil stains and other impurities. Use sandblasting, shot peening and other methods to remove rust on the surface of the steel crossbeam. The rust removal grade should meet the design and specification requirements, generally reaching above Sa2.5 level. The actual requirements shall be implemented according to the local construction requirements, that is, there should be no visible grease, dirt, scale, rust and paint coating and other attachments on the steel surface, and any remaining traces should only be slight color spots in the form of dots or stripes.

[0045] Step 2: Coating construction. Select appropriate anti-corrosion coatings according to design requirements, such as epoxy zinc-rich primer, polyurethane topcoat, etc. The variety, specification, and number of coating passes of the coatings shall meet the requirements. Use spraying, brushing and other methods for coating construction. During coating, pay attention to controlling the thickness and uniformity of the coatings to avoid phenomena such as missed coating and running. After each coating pass is completed, dry and cure according to the performance requirements of the coatings. Wait until the previous coating is dry before applying the next coating. After coating is completed, inspect the coating quality, such as checking the thickness and adhesion of the coating. The coating thickness can be measured using tools such as a magnetic thickness gauge, and the adhesion can be detected using methods such as cross-cut test.

[0046] such as Figures 7 to 9 As shown, the rust detection component 5 includes an ultrasonic detector 501. A detection head 502 is provided at the front end of the ultrasonic detector 501. A magnetic suction port 503 is formed on the top surface of the ultrasonic detector 501. A universal magnetic suction rod 504 is provided inside the magnetic suction port 503. The propagation speed and reflection characteristics of ultrasonic waves are different in different media. When ultrasonic waves encounter the rust layer and the metal matrix, due to their different acoustic impedances, reflected waves will be generated. By analyzing parameters such as the time and intensity of the reflected waves, the thickness of the rust layer can be determined. Use the antenna control box 7 to transmit data to the background to start the rust removal detection component 5. The rust removal and cleaning component 4 includes a rectangular placement and fixing member 401. A placement groove 402 is formed inside the rectangular placement and fixing member 401. A rust remover storage tank 403 is provided inside the placement groove 402. A storage port 404 is formed on the top of the rust remover storage tank 403. A water pump 405 penetrates through the front end of the rust remover storage tank 403. The transmission end of the water pump 405 is connected to a water pipe 406. One end of the water pipe 406 is connected to a spray head 407. The top of the rust remover storage tank 403 is covered with a rectangular sealing and fixing member 408. A sealing hole 409 is provided on the top of the rectangular sealing and fixing member 408. Connecting rods 410 are respectively connected to the left and right sides of the rectangular placement and fixing member 401. One end of each connecting rod 410 is connected to an opening splicing plate 411. An installation hole 412 is formed at one end of the opening splicing plate 411. A rotary motor 413 is provided inside the installation hole 412. The output end of the rotary motor 413 is connected to a cleaning roller 414. Remote control switches are installed on the water pump 405 and the rotary motor 413 in the structure of the rust removal and cleaning component 4, which are matched with the signals of the antenna control box 7, and the control instructions come from the background.

[0047] After the ultrasonic detector 501 detects rust on the surface of the steel tie beam, it provides data to the background. The background starts the rust removal and cleaning component 4. First, it starts the rotating motors 413 on both sides to rotate the cleaning drum 414 to clean the dust on the surface of the steel tie beam. Then, it starts the water pump 405 to evenly suck the rust remover inside the rust remover storage tank 403, and sprays the rust remover evenly on the surface of the steel tie beam through the water pipe 406 and the nozzle 407. After rust removal, it uses the cleaning drum 414 to clean the residual rust remover and dust on the surface. The rust removal and cleaning component 4 is an assembled structure and can be removed and replaced in an appropriate manner after the rust remover is used up.

[0048] A method for using a split main tower longitudinal bridge tower limb steel tie beam during use includes the following steps;

[0049] Step 1: First, install remote control switches on all power components used, match the signals with the antenna control box 7, and transmit the data to the background. The background staff controls the startup program of the entire set of devices;

[0050] Step 2: Weld the three main beams 101 and the three trapezoidal steel frames 102 in the splicing steel tie beam component 1 structure together respectively. Then, place the top cover plate 104 and the fixing plate 105 to splice and form the steel tie beam. In addition, high-strength bolt parts 6 are pre-installed and then fixed by welding;

[0051] Step 3: After installation, the rust detection component 5 can be started to detect whether there is rust on the left and right surfaces of the steel tie beam. If rust is found, the data will be transmitted to the background through the antenna control box 7. After the background staff processes it, the sliding component 3 is started to drive the rust removal and cleaning component 4 to slowly move on the surface of the dirty slide rail component 2 to spray the rust remover while starting the cleaning drums 414 on both sides to clean the dust and the rust remover, and perform simple rust removal to maintain the surface cleanliness and durability.

[0052] The working principle of the technical solution provided by the present invention is as follows:

[0053] First, all the electronic components set by the present invention are installed with remote control devices, which are matched with the signals of the antenna control box 7 to transmit data to the background in real time. In addition, the start-up control authority of the whole set is also handed over to the background staff. The rust detection component 5 is started to detect whether there is rust on the left and right surfaces of the steel girder. If rust is found, the data will be transmitted to the background through the antenna control box 7. After being processed by the background staff, the sliding component 3 is started to drive the rust removal and cleaning component 4 to slowly move on the surface of the dirty slide rail component 2 to spray rust remover while starting the cleaning rollers 414 on both sides to clean the dust and rust remover, so as to perform simple rust removal to keep the surface clean and durable. Then, the principle of setting the ultrasonic detector 501 is as follows: The propagation speed and reflection characteristics of ultrasonic waves are different in different media. When ultrasonic waves encounter the rust layer and the metal matrix, due to their different acoustic impedances, reflected waves will be generated. By analyzing parameters such as the time and intensity of the reflected waves, the thickness of the rust layer can be determined. For example, when detecting the rust on the inner wall of a pipeline, the ultrasonic signals emitted by the ultrasonic sensor will have different reflections when encountering the rust and the metal pipe wall, and the thickness of the rust can be calculated based on these reflected signals.

[0054] The present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit and scope of the present invention. In order to enable the public to have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, well-known methods, processes, procedures, components and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A steel tie beam for a detachable main tower along the bridge direction and a method of use, characterized in that: It includes a spliced steel tie beam assembly, wherein the top surface of the spliced steel tie beam assembly is respectively provided with a slide rail assembly on the left and right sides, and the top of all the slide rail assemblies is provided with a sliding assembly, and the left and right ends of the sliding assembly are respectively connected to a rust removal and cleaning assembly, and the bottom of each rust removal and cleaning assembly is connected to a rust detection assembly, and the front and rear end surfaces of the spliced steel tie beam assembly are respectively provided with a plurality of high-strength bolts in an arranged manner, and an antenna control box is placed at the center of the top surface of the spliced steel tie beam assembly; The rust detection component includes an ultrasonic detector, a detection head is provided at the front end of the ultrasonic detector, a magnetic suction port is opened on the top surface of the ultrasonic detector, and a universal magnetic suction rod is provided inside the magnetic suction port. The propagation speed and reflection characteristics of ultrasonic waves in different media are different. When ultrasonic waves encounter the rust layer and the metal matrix, due to their different acoustic impedances, reflected waves will be generated. By analyzing the time, intensity and other parameters of the reflected wave, the thickness of the rust layer can be determined, and the antenna control box is used to transmit the data to the background to start the rust removal detection component.

2. The steel tie beam of the tower limb of the separated main tower along the bridge direction according to claim 1 is characterized in that: The spliced steel tie beam assembly includes three main beams, each of which is provided with a trapezoidal steel frame at the bottom, and semicircular grooves are respectively provided on the front and rear sides of the bottom surface of the trapezoidal steel frame. The tops of the three main beams are covered with a cover plate, and the left and right sides of the cover plate are respectively provided with fixing plates at the front and rear end edges.

3. The separated main tower longitudinal bridge tower limb steel tie beam according to claim 1, characterized in that, The slide rail assembly includes a slide rail body. The front and rear ends of the slide rail body are respectively provided with limit plates. The left and right side surfaces of the slide rail body are respectively provided with a plurality of fixing holes in an arranged manner.

4. The separated main tower longitudinal bridge tower limb steel tie beam according to claim 1, characterized in that, The sliding assembly includes a fixed rod, pulleys are respectively provided at the edges of the left and right ends of the fixed rod, and splicing rods are respectively provided at the left and right ends of the fixed rod. The left and right ends of each splicing rod are respectively connected to an elliptical splicing plate and a power motor.

5. The separated main tower longitudinal bridge tower limb steel tie beam according to claim 1, characterized in that, The rust removal and cleaning component includes a rectangular placement fixing piece, a placement groove is provided inside the rectangular placement fixing piece, a rust remover storage tank is provided inside the placement groove, and a storage opening is provided on the top of the rust remover storage tank.

6. The separated main tower longitudinal bridge tower limb steel tie beam according to claim 5, wherein A water pump is passed through the front end of the rust remover storage tank, the transmission end of the water pump is connected to a water pipe, one end of the water pipe is connected to a nozzle, and the top of the rust remover storage tank is covered with a rectangular sealing fixture, and a sealing hole is provided on the top of the rectangular sealing fixture.

7. The steel tie beam of the tower limb of the separated main tower along the bridge direction according to claim 5 is characterized in that: The left and right sides of the rectangular placement fixture are respectively connected with connecting rods, and one end of each connecting rod is connected with a perforated splicing plate.

8. The separated main tower longitudinal bridge tower limb steel tie beam according to claim 7, characterized in that, A mounting hole is formed at one end of the perforated splicing plate, a rotating motor is provided inside the mounting hole, and an output end of the rotating motor is connected to the cleaning roller.

9. The separated main tower longitudinal bridge tower limb steel tie beam according to claim 1, wherein The water pump and rotating motor in the rust removal and cleaning component structure are equipped with remote control switches, which match the signals from the antenna control box, and the control instructions come from the background.

10. The method for using the steel tie beam of the tower limb of the separated main tower according to claims 1-9, characterized in that: The following steps are involved: Step 1: First, install remote control switches on all power components used, match the signals with those from the antenna control box, and transmit the data to the backend, where the backend staff will control the startup procedure of the entire device. Step 2: Weld and splice the three main beams and three trapezoidal steel frames inside the spliced steel girder assembly structure together respectively. Then, splice the top placement cover plate and the fixed plate to form the steel girder. In addition, high-strength bolt parts are pre-installed and then fixed by welding subsequently. Step 3: After the installation is completed, the rust detection component can be activated to detect whether there is rust on the left and right surfaces of the steel girder. If rust is found, the data will be transmitted to the background through the antenna control box. After the background staff processes it, the sliding component is activated to drive the rust removal and cleaning component to slowly move on the surface of the dirty slide rail component, while spraying rust remover on one side and starting the cleaning drums on both sides to clean the dust and rust remover, so as to perform simple rust removal to keep the surface clean and durable.

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