A lattice angle tower main material reinforcing device and a reinforcing method thereof

Abstract

A lattice type angle steel tower main material reinforcing device and a reinforcing method thereof, the upper and lower ends of the main material angle steel are respectively provided with a conversion bearing platform, the conversion bearing platforms are composed of steel plates, the planes of the steel plates are perpendicular to the length direction of the main material angle steel, a reinforcing member round steel is connected between the upper and lower conversion bearing platforms, the axial direction of the reinforcing member round steel is parallel to the length direction of the main material angle steel, the upper side of the upper conversion bearing platform and the lower side of the lower conversion bearing platform are respectively connected with a reinforcing member splice, the reinforcing member splices are composed of angle steels or straight-angled bent steel plates, the reinforcing member splices are perpendicular to the upper and lower conversion bearing platforms, the reinforcing member splices are connected with the main material splice plates or splice angle steels and the main material angle steel through bolts, the net cross-sectional area of the original tower body main material is increased through the reinforcing member round steel under the condition that the original tower body main material is completely undamaged, and the bearing capacity of the angle steel tower can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of construction, and more particularly to towers with angle steel structures, specifically a reinforcement device and method for the main material of a lattice-type angle steel tower. Background Technology

[0002] With the rapid development of global communication technology, communication equipment is being updated and replaced quickly. From 3G to 4G, and from 4G to 5G, many communication tower sites are facing expansion and load-bearing requirements, namely, adding communication equipment to existing towers. This places increasingly higher demands on the load-bearing capacity of communication towers. Many of the existing towers are quite old, and their steel strength and design load-bearing capacity are gradually failing to meet the needs of recent tower load increases. Therefore, in response to the various demands for increased load capacity, tower reinforcement has become a top priority for many sites.

[0003] In the field of tower reinforcement design, a common approach to addressing insufficient load-bearing capacity of the main structural members is to increase the net cross-sectional area of ​​the components, ensuring that the reinforced members meet load-bearing requirements. Increasing the net cross-sectional area is a prevalent method among various tower reinforcement techniques, frequently used to address insufficient load-bearing capacity of the main structural members. However, many current reinforcement methods involve drilling holes and welding into the original tower structure. Such methods are not only limited by the difficulty of high-altitude operations but may also weaken the original main structural member's cross-section or introduce new internal stresses due to welding, leading to new adverse effects on the main structural member. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned deficiencies in the prior art by providing a lattice-type angle steel tower main material reinforcement device and method that maintains the integrity of all original tower structure components, eliminates the need for drilling or welding on the main material body, and ensures non-destructive reinforcement of the main material angle steel.

[0005] Its main working principle is to use a combination of round steel and main material angle steel to reinforce the main material angle steel so that the reinforced combination section and the main material share the load, thereby increasing the load-bearing capacity of the tower.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A reinforcement device for the main members of a lattice-type angle steel tower, wherein the main member of the tower comprises a single main angle steel. The upper and lower ends of the main angle steel are respectively connected to a main member splicing plate or splicing angle steel via first bolts. The splicing plate or splicing angle steel at the upper end of the main angle steel is used to connect to another main angle steel above it, and the splicing plate or splicing angle steel at the lower end of the main angle steel is used to connect to another main angle steel below it. The device is characterized in that: an upper transition bearing platform is provided at the upper end of the main angle steel, and a lower transition bearing platform is provided at the lower end of the main angle steel; the upper transition bearing platform and the lower transition bearing platform... The transfer bearing platforms are all made of steel plates, with the plane of the steel plates perpendicular to the length direction of the main material angle steel. A reinforcing round steel is connected between the upper and lower transfer bearing platforms, with the axial direction of the reinforcing round steel parallel to the length direction of the main material angle steel. A reinforcing component splice is connected to the upper side of the upper transfer bearing platform and the lower side of the lower transfer bearing platform. The reinforcing component splice is made of angle steel or a right-angled bent steel plate. The reinforcing component splice is perpendicular to the upper and lower transfer bearing platforms. The reinforcing component splice plate is connected to the main material splice plate or splice angle steel and the main material angle steel by the first bolt.

[0007] Furthermore, the distance between the center of the reinforcing round steel and the centroid of the main angle steel is less than or equal to 15mm.

[0008] Furthermore, a main member clamp is provided on the reinforcing round steel. The main member clamp includes a right-angled bend plate. Each end of the right-angled bend plate has a 135-degree bend. The two bends are located in the same plane. The two bends are respectively connected to the two ends of a clamp round steel adapter by bolts. A U-bolt is provided in the middle of the clamp round steel adapter. The U-bolt is located between the clamp round steel adapter and the right-angled bend plate. The right-angled bend plate is located on the outside of the main member angle steel. The reinforcing round steel is located between the U-bolt and the clamp round steel adapter.

[0009] Furthermore, the diameter of the bolt holes on the reinforcing component splice is 0.5mm larger than the diameter of the connecting bolts.

[0010] Furthermore, the end of the reinforcing round steel is provided with external threads, and the upper and lower conversion bearings are provided with corresponding internal threaded holes at the connection positions with the reinforcing round steel.

[0011] Furthermore, the method for reinforcing the main structure of a lattice-type angle steel tower includes the following steps: (1) First, the reinforcing round steel is connected to the internal threaded hole of the conversion bearing by means of threaded connection, and screwed in to a small depth, without being fully tightened; (2) Then, the U-bolt is pre-fitted into the reinforcing round steel and the clamp round steel fitting is tied and fixed. (3) Confirm that the overall length of the reinforcing round steel, the conversion bearing and the connecting seat is correct, and adjust the overall length by adjusting the screw depth of each component; (4) Remove the main material angle steel and the original splicing bolts at the splicing plate or splicing angle steel; (5) Before hoisting the whole piece of reinforcement component (1)-(3), align the bolt holes on the splicing plate of the reinforcement component with the bolt holes at the end of the main material angle steel and the splicing plate or splicing angle steel, and install bolts to tighten them. (6) Tighten all the installed bolts in sequence until the splicing plate of the reinforcing component is in close contact with the splicing plate or splicing angle steel of the main material; (7) At the location where the clamp round steel adapter is provided, insert the main material clamp from the outside of the main material angle steel inward, adjust the position of the main material clamp until it is aligned with the bolt hole of the clamp round steel adapter, insert the bolt and tighten it until it is in contact with both the main material angle steel and the reinforcing member round steel. Compared with existing technologies, the present invention has positive and obvious effects. The present invention increases the net cross-sectional area of ​​the main tower material by reinforcing it with round steel without any damage (no subsequent drilling or welding), which can effectively increase the load-bearing capacity of the main material. For towers with defects in the original design, it can effectively extend their service life. For communication towers that need to add antenna mounting, multiple additional operator antennas can be mounted, improving economic efficiency. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3 This is a partially enlarged view of the present invention.

[0015] Figure 4 This is a diagram showing the location of the round steel connection point of the reinforcement component of this invention.

[0016] Figure 5 This is a diagram showing the connection of the main material, the clamp, in this invention.

[0017] Figure 6 This is a magnified view of the reinforcement of the upper and lower ends of the angle steel, the main material of this invention. Detailed Implementation

[0018] Example

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a lattice-type angle steel tower main member reinforcement device is disclosed. The main member of the angle steel tower includes a main member angle steel 1. The upper and lower ends of the main member angle steel 1 are respectively connected to a main member splicing plate or splicing angle steel 2 by a first bolt. The main member splicing plate or splicing angle steel 2 at the upper end of the main member angle steel 1 is used to connect with another main member angle steel 1 above the main member angle steel 1, and the main member splicing plate or splicing angle steel 2 at the lower end of the main member angle steel 1 is used to connect with another main member angle steel 1 below the main member angle steel 1. The device is characterized in that: the main member angle steel 1... An upper transition bearing 3 is provided at the upper end of the main angle steel 1, and a lower transition bearing 6 is provided at the lower end of the main angle steel 1. Both the upper transition bearing 3 and the lower transition bearing 6 are made of steel plates, and the plane of the steel plates is perpendicular to the length direction of the main angle steel 1. A reinforcing round steel 5 is connected between the upper transition bearing 3 and the lower transition bearing 6. The axial direction of the reinforcing round steel 5 is parallel to the length direction of the main angle steel 1. A [missing information - likely a type of steel plate] is connected to the upper side of the upper transition bearing 3 and the lower transition bearing 6 respectively. A reinforcing component splice 4, comprising angle steel or right-angled bent steel plates, is perpendicular to the upper transfer bearing 3 and the lower transfer bearing 6. The reinforcing component splice 4 is connected to the main material splice plate or splice angle steel 2 and the main material angle steel 1 via the first bolt. By utilizing the bolt holes at the splice points of the original main material angle steel 1, an additional reinforcing component splice 4 is connected inside the original main material angle steel 1 to connect the original main material angle steel 1 to the reinforcing material via bolts. The main load is reliably distributed to the reinforcing round steel 5. The internal splicing nodes ensure that the reinforcing round steel is positioned as close as possible to the centroid of the main angle steel, while also ensuring ease of installation, avoiding high-altitude drilling and welding. This invention's technical solution is completely non-destructive to the original tower, requiring no on-site drilling or welding. Theoretical modeling and testing have proven its superior rationality in reinforcement methods and connection techniques, better conforming to the principles of shared load mechanics, resulting in a more significant reinforcement effect. This solution is reliable, rational, and genuinely improves the tower's load-bearing capacity. The main angle steel specifications typically range from L70 to L200, and the components of this invention maintain versatility across different size ranges. For example, a single reinforcing round steel, a universal clamp, and a consistent end connection method can be used between L100 and L125. This versatility design reduces production cycles, lowers costs, and has significant engineering value.

[0020] Furthermore, such as Figure 4 As shown, the distance between the center of the reinforcing round steel 5 and the centroid of the main material angle steel 1 is less than or equal to 15mm.

[0021] Furthermore, such as Figure 5As shown, a main member clamp 7 is provided on the reinforcing round steel 5. The main member clamp 7 includes a right-angle bending plate. Each end of the right-angle bending plate has a 135-degree bend. The two bends are located in the same plane. The two bends are respectively connected to the two ends of a clamp round steel adapter 8 by bolts. A U-bolt 9 is provided in the middle of the clamp round steel adapter 8. The U-bolt 9 is located between the clamp round steel adapter 8 and the right-angle bending plate. The right-angle bending plate is located on the outside of the main member angle steel 1. The reinforcing round steel 5 is located between the U-bolt 9 and the clamp round steel adapter 8.

[0022] Furthermore, the diameter of the bolt holes on the reinforcing component splice 4 is 0.5mm larger than the diameter of the connecting bolts.

[0023] Furthermore, such as Figure 1 and Figure 6 As shown, the end of the reinforcing round steel 5 is provided with external threads, and the upper conversion bearing 3 and the lower conversion bearing 6 are provided with corresponding internal threaded holes 10 at the connection positions with the reinforcing round steel 5. This threaded connection has high adjustability and can eliminate a series of unavoidable errors in engineering, design or measurement.

[0024] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the method for reinforcing the main structure of a lattice angle steel tower, used to reinforce the aforementioned lattice angle steel tower main structure reinforcement device, includes the following steps: (1) First, the reinforcing round steel 5 is connected to the internal threaded holes 10 of the upper conversion bearing 3 and the lower conversion bearing 6 by means of threaded connection, and screwed in to a small depth. It does not need to be fully tightened, leaving room for subsequent adjustment. (2) Insert the U-bolt 9 into the reinforcing round steel 5 in advance and tie and fix the clamp round steel adapter 8; (3) Confirm that the overall length of the reinforcing round steel 5, the upper conversion bearing 3 and the lower conversion bearing 6 is correct, and adjust the overall length by adjusting the screw depth of each component; (4) Remove some of the original splicing bolts at the main material angle steel 1 and the main material splicing plate or splicing angle steel 2; (5) Before hoisting the whole piece of reinforcement component (1)-(3), align the bolt holes on the splice 4 of the reinforcement component with the bolt holes of the main material angle steel 1 and the main material splice plate or splice angle steel 2 at the end position of the main material bolt holes, and install bolts to tighten them. (6) Tighten all the installed bolts in sequence until the reinforcing component splice 4 and the main material splice plate or splice angle steel 2 of the main material angle steel 1 are in contact with each other. During the process, the bolts at the splice need to be tightened multiple times to ensure that there are no stripping or insufficient tightening torque in the future. (7) At the position where the clamp round steel adapter 8 is provided, insert the main material clamp 7 from the outside of the main material angle steel 1 inward, adjust the position of the main material clamp 7 until it is aligned with the bolt hole of the clamp round steel adapter 8, insert the bolt and tighten it until it is in contact with the main material angle steel 1 and the reinforcing component round steel 5.

Claims

1. A reinforcement device for the main members of a lattice-type angle steel tower, wherein the main member of the angle steel tower comprises a main angle steel, and the upper and lower ends of the main angle steel are respectively connected to a main member splicing plate or splicing angle steel by a first bolt; the main member splicing plate or splicing angle steel at the upper end of the main angle steel is used to connect with another main angle steel above the main angle steel, and the main member splicing plate or splicing angle steel at the lower end of the main angle steel is used to connect with another main angle steel below the main angle steel, characterized in that: An upper conversion bearing is provided at the upper end of the main angle steel, and a lower conversion bearing is provided at the lower end of the main angle steel. Both the upper and lower conversion bearings are made of steel plates, and the plane of the steel plates is perpendicular to the length direction of the main angle steel. A reinforcing round steel is connected between the upper and lower conversion bearings, and the axial direction of the reinforcing round steel is parallel to the length direction of the main angle steel. A reinforcing component splice is connected to the upper side of the upper conversion bearing and the lower side of the lower conversion bearing. The reinforcing component splice is made of angle steel or a right-angled bent steel plate. The reinforcing component splice is perpendicular to the upper and lower conversion bearings. The reinforcing component splice is connected to the main splicing plate or splicing angle steel and the main angle steel by the first bolt. The reinforcing round steel is equipped with a main material clamp, which includes a right-angle bend plate. Each end of the right-angle bend plate has a 135-degree bend, and the two bends are located in the same plane. The two bends are respectively connected to the two ends of a clamp round steel adapter by bolts. A U-bolt is provided in the middle of the clamp round steel adapter, and the U-bolt is located between the clamp round steel adapter and the right-angle bend plate. The right-angle bend plate is located on the outside of the main material angle steel, and the reinforcing round steel is located between the U-bolt and the clamp round steel adapter.

2. The lattice-type angle steel tower main material reinforcement device as described in claim 1, characterized in that: The reinforcing round steel is located inside the main angle steel, and the distance between the axis of the reinforcing round steel and the centroid of the main angle steel is less than or equal to 15mm.

3. The lattice-type angle steel tower main material reinforcement device as described in claim 1, characterized in that: The diameter of the bolt hole on the splice of the reinforcing component is 0.5mm larger than the diameter of the first bolt.

4. The lattice-type angle steel tower main material reinforcement device as described in claim 1, characterized in that: The end of the reinforcing member round steel is provided with external threads, and the upper conversion bearing and the lower conversion bearing are provided with corresponding internal threaded holes at the connection positions with the reinforcing member round steel.

5. A method for reinforcing the main structure of a lattice-type angle steel tower using the reinforcement device according to claim 1, characterized in that, Includes the following steps: (1) First, the reinforcing round steel is connected to the internal threaded holes of the upper and lower conversion bearings respectively by means of threaded connection, and screwed in to a small depth; (2) Insert the U-bolt into the reinforcing round steel in advance and tie and fix the clamp round steel fitting; (3) Confirm that the overall length of the reinforcing round steel, the upper conversion bearing and the lower conversion bearing is correct, and adjust the overall length by adjusting the screw depth of each component; (4) Remove the original first bolts at the main material angle steel and the main material splicing plate or splicing angle steel; (5) Before the overall hoisting, the assembled whole reinforcement component (1)-(3) is aligned with the bolt holes on the splice of the reinforcement component and the bolt holes at the end of the main material angle steel and the splice plate of the main material, and the first bolt is installed for fastening. (6) Tighten all the first bolts installed in sequence until the splicing parts of the reinforcing component are in close contact with the splicing plate or splicing angle steel of the main material. During the process, tighten the first bolts at the splicing point multiple times. (7) At the position where the clamp round steel adapter is provided, insert the main material clamp from the outside of the main material angle steel inward, adjust the position of the main material clamp until it is aligned with the bolt hole of the clamp round steel adapter, insert the bolt and tighten it until it is in contact with the main material angle steel and the reinforcing member round steel.

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