Temporary multifunctional support monitoring platform for main tower construction of cable-stayed bridge

Abstract

The utility model discloses a cable -stayed bridge main tower construction temporary multifunctional support monitoring platform, it includes monitoring platform, platform support, a plurality of extension supports are evenly extended and set up on the platform support upper end, second magnetic attraction board is provided on the third magnetic attraction strip upper end, second magnetic attraction board is provided correspondingly on the third magnetic attraction strip upper end, monitoring platform is provided correspondingly on the extension support upper end, two reinforcing bars are fixedly connected to both sides of the fixed frame. Through the above structure, the both sides of the fixed frame are installed and reinforced through the reinforcing bar and the reinforcing nail, the outside of the mounting seat is through the first fixed plate, the second fixed plate, the first bolt and the second bolt, so that the whole structure support is very stable, and the extension supports between the whole support structure are connected with each other through the first magnetic attraction strip, the third magnetic attraction strip, the second magnetic attraction board and the fourth magnetic attraction groove, can extend the monitoring platform of different positions, and the extension support, the platform support and the monitoring platform can be quickly assembled.

Description

Technical Field

[0001] This utility model relates to the field of cable-stayed bridge main tower construction technology, and in particular to a temporary multi-functional support monitoring platform for cable-stayed bridge main tower construction. Background Technology

[0002] In the construction of cable-stayed bridge main towers, the core function of temporary multi-functional support monitoring platforms is to provide a safe and reliable carrier for personnel operation and real-time monitoring. However, existing platforms have significant shortcomings in terms of installation flexibility. Traditional designs struggle to adapt to the characteristics of continuously increasing main tower construction height and potential cross-sectional changes, and cannot be quickly and conveniently adjusted or extended according to the specific monitoring needs and operating space requirements of each construction stage (such as rebar tying, formwork erection, concrete pouring, and cable guide positioning). This rigidity makes it difficult for the monitoring platform to cover all critical areas of the main tower construction (such as transition sections with variable cross-sections and near special structural nodes), creating unavoidable monitoring blind spots. The lack of dynamic adaptability to the entire construction process not only reduces the comprehensiveness and effectiveness of monitoring data but also limits construction personnel from operating in optimal positions, affecting construction efficiency and precision.

[0003] Another prominent problem with existing temporary support monitoring platforms is the complexity and inefficiency of the connection methods between components. Assembly largely relies on traditional welding or extensive bolting. Welding is inherently difficult and time-consuming in high-altitude environments, and carries the risk of thermal deformation, adversely affecting the platform's initial accuracy. Extensive bolting implies complex tightening operations and strict hole alignment requirements, making assembly extremely time-consuming and labor-intensive, significantly slowing down construction progress. More importantly, these connection methods are extremely sensitive to component machining accuracy and on-site construction errors. Even minor dimensional deviations or improper installation can easily lead to initial stress or gaps at the connection nodes, severely affecting the actual load-bearing capacity of the connection and the overall structural stiffness. This poses a hidden danger to the platform's safe operation under complex high-altitude loads, making it difficult to fully guarantee the reliability of the connections.

[0004] The most direct and serious deficiency of existing platforms lies in their insufficient overall structural stability. Faced with the harsh environment unique to high-altitude construction of cable-stayed bridge main towers—including strong wind loads, dynamic load impacts from construction equipment (such as tower cranes and concrete pump pipes), and complex external forces such as personnel and material movement loads—the existing platform's fixing and reinforcement measures are often inadequate or lack sufficient design redundancy. This leads to problems such as overall swaying, localized deformation (such as platform plate warping and support rod bending), and even loosening of critical connection nodes during service. This structural instability constitutes a significant safety hazard: on the one hand, severe swaying or localized instability directly threatens the lives of personnel working on the platform, increasing the risk of falls from heights; on the other hand, continuous deformation or loosening accelerates structural fatigue damage, potentially leading to more serious failures. Simultaneously, the platform's unreliable state can disrupt normal construction processes, forcing work stoppages for maintenance and severely delaying the overall project schedule. Therefore, improving the platform's wind and impact resistance and overall stability is an urgent need to ensure construction safety and smooth operation. Summary of the Invention

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a temporary multi-functional support monitoring platform for the construction of the main tower of a cable-stayed bridge, which enables the installation of monitoring platforms at different locations, and allows for rapid assembly of the extension support, platform support, and monitoring platform, resulting in a very stable overall structure.

[0006] This utility model also provides a temporary multi-functional support monitoring platform for the construction of the main tower of a cable-stayed bridge, including a monitoring platform and a platform support. Multiple extension supports are evenly radially extended along the circumference of the tower column section at the upper end of the platform support, forming a vertical support system with the monitoring platform. Four first magnetic strips are symmetrically distributed at the lower end of each extension support. The extension supports are polarly coupled to the upper end of the platform support via the magnetic strips, achieving rapid positioning and shear-resistant locking of the extension supports on the platform support. The upper end of the extension supports is magnetically engaged with the bottom of the monitoring platform, allowing the monitoring platform to dynamically expand with the extension supports. Adjacent extension supports are interlocked laterally by third magnetic strips and second magnetic plates arranged symmetrically on the sides, forming a lateral magnetic field interlock. The polarity distribution of the second magnetic plates and the third magnetic strips form complementary magnetic field coupling, constituting a circumferentially continuous anti-torsional structure. The platform support and the corresponding extension supports are welded and fixed on the same side. The platform has an I-shaped fixing frame anchored to the pre-embedded parts of the main tower. Two reinforcing ribs are symmetrically welded diagonally on both sides of the fixing frame, and the ends of the reinforcing ribs penetrate the protective layer of the main tower and are embedded into the structure to form a figure-eight anti-overturning support. The mounting base connected to the bottom of the platform support has a first fixing plate and a second fixing plate symmetrically welded to the two side flanges. The first fixing plate and the second fixing plate are bidirectionally clamped and fixed to the load-bearing nodes of the main tower by a first bolt and a second bolt that pass through. An inclinometer and a laser displacement sensor are integrated in the center of the upper surface of the monitoring platform. The inclinometer collects the three-dimensional attitude data of the platform in real time, and the laser displacement sensor measures the deformation value of the key points of the main tower by scanning. Two visual cameras are symmetrically fixed on the edge of the monitoring platform. The dual-camera collaboration realizes three-dimensional visual monitoring of the construction joint width and cable guide positioning. The integrated inclinometer, laser displacement sensor and inclinometer form a spatial posture monitoring matrix through data fusion.

[0007] According to the temporary multi-functional support monitoring platform for the main tower construction of the cable-stayed bridge described in this utility model, the inner side of the first fixing plate is symmetrically threaded with two first bolts, and the inner side of the second fixing plate is symmetrically threaded with two second bolts.

[0008] According to the temporary multi-functional support monitoring platform for the main tower construction of the cable-stayed bridge described in this utility model, a first magnetic groove is magnetically arranged between the first magnetic strip and the platform support, a first magnetic plate is magnetically arranged at the lower end of the third magnetic strip, a second magnetic groove is arranged on the inner side of the first magnetic plate, and the first magnetic plate is fixedly connected to both sides of the platform support.

[0009] According to the temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge as described in this utility model, a third magnetic groove is evenly arranged on the inner side of the extension support. The third magnetic groove and the first magnetic strip are magnetically attracted to each other. An installation plate is fixedly connected to the upper end of the third magnetic strip, and the installation plate is fixedly connected to the side wall of the extension support. A fourth magnetic groove is arranged on the inner side of the second magnetic plate, and the fourth magnetic groove and the third magnetic strip are magnetically attracted to each other. According to the temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge as described in this utility model, two second magnetic strips are symmetrically fixedly connected to the lower end of the monitoring platform, and the second magnetic strips and the second magnetic plate are magnetically attracted to each other.

[0010] According to the temporary multi-functional support monitoring platform for the main tower construction of the cable-stayed bridge described in this utility model, the upper end of the fixed frame is fixedly connected to an installation block, and the inner side of the installation block is symmetrically threaded with two third bolts.

[0011] According to the temporary multi-functional support monitoring platform for the main tower construction of the cable-stayed bridge described in this utility model, a reinforcing nail is fixedly connected to one side of the reinforcing bar.

[0012] According to the temporary multi-functional support monitoring platform for the main tower construction of the cable-stayed bridge described in this utility model, the lower ends of the inclinometer and the laser displacement sensor are fixedly connected to the mounting components, and the mounting components are fixedly connected to the upper end of the monitoring platform.

[0013] This utility model has the following beneficial effects:

[0014] 1. The modular magnetic connection system completely solves the problems of poor installation flexibility and difficulty in extending coverage of traditional platforms. Specifically, multiple extension brackets pre-installed on the upper end of the platform support, as well as the connections between extension brackets and between extension brackets and the platform support / monitoring platform, are all connected using carefully designed magnetic components (such as the first magnetic strip and the first magnetic slot, the second magnetic strip and the fourth magnetic slot, the second magnetic plate and the third magnetic strip, etc.). This design brings revolutionary advantages: First, construction personnel can quickly and conveniently "attach" and install or disassemble extension brackets and corresponding monitoring platform modules at any desired location according to the real-time progress of the main tower construction and specific monitoring needs (such as variable cross-section areas or cable guide installation points that need to be monitored). This enables on-demand extension and dynamic adjustment of the monitoring platform, thereby completely eliminating monitoring blind spots existing in traditional technologies and ensuring no dead angle coverage of key areas throughout the entire construction process. Secondly, the magnetic connection method eliminates the need for complicated welding or a large number of bolts. Components only need to be brought close together to be precisely aligned and firmly attracted under the action of strong magnetic force, realizing "place and use" for rapid assembly. This significantly improves the efficiency of platform construction, adjustment and dismantling, and perfectly overcomes the drawbacks of traditional methods that are time-consuming, labor-intensive and rely on high-precision matching.

[0015] 2. To address the significant safety hazards posed by existing platforms' swaying, deformation, and loosening in complex high-altitude environments (strong winds, dynamic loads), this solution constructs a highly efficient and reliable multi-modal reinforcement system. The key features of this system are: 1) Modular foundation fixing: Standardized fixing frames are fixedly connected to the critical load-bearing sides of the extension supports and platform supports, serving as the foundational anchor points for reinforcement. The fixing frames achieve a quick and reliable initial connection to the main structure through mounting blocks and third bolts. 2) Lateral stiffness enhancement: On both sides of the fixing frames, reinforcing ribs and nails are used for further lateral constraint and stiffness enhancement, effectively resisting horizontal wind loads and lateral forces caused by construction equipment, preventing unexpected lateral displacement or torsion of the supports. 3) All-around rigid locking: On the outside of the mounting base (which can be considered a connecting hub), through the synergistic action of the first and second fixing plates, and by applying strong preload with the first and second bolts, the relevant components are tightly pressed together and rigidly locked together. These three levels of reinforcement work together to form a highly stable and rigid overall structure that can effectively suppress platform swaying and deformation. Even in harsh high-altitude construction environments, it can maintain extremely high structural integrity, fundamentally eliminating safety risks caused by structural instability and ensuring the safety of construction personnel and the continuity of construction.

[0016] 3. The beneficial effects of this solution are not isolated. The flexibility of its magnetic connection and the stability of its multiple reinforcements complement each other, jointly constructing a highly efficient, safe, and adaptable construction monitoring platform system. The magnetic connection system ensures that the platform can be dynamically extended and reconfigured in near real-time according to construction needs, meeting the requirements for monitoring coverage and operating space during the complex and ever-changing construction phases of the cable-stayed bridge's main tower. Simultaneously, its rapid assembly characteristic significantly reduces high-altitude work time, which in itself enhances safety. The seamlessly integrated multi-modal reinforcement system provides a solid and reliable foundation and constraint for these flexibly extendable components, ensuring that whether it is the core platform support, the extended support modules, or the top monitoring platform, all can maintain overall rigidity and stability under complex external forces such as high-altitude wind loads, equipment vibrations, and personnel movement, avoiding safety accidents caused by loose connections or structural deformation. This perfect combination of "flexible expansion" and "rigid stability" not only solves all the core pain points mentioned in the background technology, but also significantly improves construction efficiency, monitoring quality and operational safety, providing a strong technical guarantee for the efficient and safe construction of cable-stayed bridge main towers. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional view of the temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to this utility model;

[0019] Figure 2 This is a schematic diagram of the platform support structure of the temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to this utility model;

[0020] Figure 3 This is a schematic diagram of the extension support of the temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the second magnetic strip at the lower end of the temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge in this utility model.

[0022] Legend:

[0023] 1—Mounting base; 2—Platform bracket; 3—Extension bracket; 4—First fixing plate; 5—First bolt; 6—Second fixing plate; 7—Second bolt; 8—First magnetic slot; 9—First magnetic plate; 10—Second magnetic slot; 11—Third magnetic slot; 12—First magnetic strip; 13—Mounting plate; 14—Third magnetic strip; 15—Second magnetic plate; 16—Fourth magnetic slot; 17—Monitoring platform; 18—Second magnetic strip; 19—Inclinometer; 20—Laser displacement sensor; 21—Mounting component; 22—Visual camera; 23—Fixed bracket; 24—Reinforcing rib; 25—Reinforcing nail; 26—Third bolt; 27—Mounting block. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-4This utility model discloses a temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge, comprising a monitoring platform 17 and a platform support 2. Multiple extension supports 3 are uniformly radially extended along the circumferential cross-section of the tower column at the upper end of the platform support 2, forming a vertical support system with the monitoring platform 17. Four first magnetic strips 12 are symmetrically distributed at the lower end of each extension support 3. The extension supports 3 are coupled to the upper end of the platform support 2 via magnetic strips, achieving rapid positioning and shear-resistant locking on the platform support. The upper end of each extension support 3 is magnetically engaged with the bottom of the monitoring platform 17, allowing the monitoring platform to dynamically expand with the extension supports. Adjacent extension supports 3 are interlocked laterally by third magnetic strips 14 and second magnetic plates 15, with the polarity distribution of the second magnetic plates 15 and the third magnetic strips 14 forming complementary magnetic field coupling, constituting a circumferentially continuous anti-torsional structure. An I-shaped fixing frame is welded and fixed to the platform support 2 and the corresponding extension support 3 on the same side. 23. The fixed frame 23 is anchored to the embedded parts of the main tower. Two reinforcing ribs 24 are symmetrically welded to both sides of the fixed frame 23. The ends of the reinforcing ribs 24 penetrate the protective layer of the main tower and are implanted into the structure to form a figure-eight anti-overturning support. The mounting base 1 connected to the bottom of the platform support 2 is symmetrically welded with a first fixing plate 4 and a second fixing plate 6 on both sides. The first fixing plate 4 and the second fixing plate 6 are bidirectionally clamped and fixed to the load-bearing nodes of the main tower by the through bolts 5 and 7. The inclinometer 19 and the laser displacement sensor 20 are integrated in the center of the upper surface of the monitoring platform 17. The inclinometer 19 collects the three-dimensional attitude data of the platform in real time, and the laser displacement sensor 20 measures the deformation value of the key points of the main tower by scanning. Two visual cameras 22 are symmetrically fixed on the edge of the monitoring platform 17. The dual-camera collaboration realizes the stereoscopic visual monitoring of the construction joint width and cable guide positioning. The integrated inclinometer 19, laser displacement sensor 20 and inclinometer 19 form a spatial posture monitoring matrix through data fusion.

[0026] In this utility model, the tilt meter 19 and the vision camera 22 are existing technical structures used to identify component cracks and monitor the construction process. The laser displacement sensor 20 is also an existing technical structure and is a conventional technology that can monitor displacement during the construction process.

[0027] The first fixing plate 4 has two symmetrically threaded first bolts 5 on its inner side, and the second fixing plate 6 has two symmetrically threaded second bolts 7 on its inner side. The first bolts 5 and the second bolts 7 are used to install and fix the first fixing plate 4 and the second fixing plate 6. In this invention, the first fixing plate 4 and the second fixing plate 6 form a bidirectional clamping force through the symmetrically distributed first bolts 5 and second bolts 7, resulting in high-strength surface contact pressure between the mounting base 1 and the main tower load-bearing node. This design completely solves the problem of local stress concentration caused by single-point fixing in traditional platforms. Under strong winds or equipment vibration loads, it can effectively suppress the risk of micro-displacement and loosening of the mounting base 1, and significantly improve the overall anti-overturning capability of the platform.

[0028] A first magnetic groove 8 is magnetically attached between the first magnetic strip 12 and the platform support 2. A first magnetic plate 9 is magnetically attached to the lower end of the third magnetic strip 14. A second magnetic groove 10 is provided on the inner side of the first magnetic plate 9. The first magnetic plate 9 is fixedly connected to both sides of the platform support 2. Through the first magnetic plate 9 fixed on both sides of the platform support 2 and its inner second magnetic groove 10, a vertical magnetic anchoring is formed with the third magnetic strip 14 of the extension support 3. This structure realizes the uniform distribution and transmission of the self-weight load of the extension support 3. At the same time, the multi-stage magnetic circuit coupling (magnetic strip-magnetic groove-magnetic plate) provides instantaneous self-resetting force when encountering lateral impact, eliminating the risk of support slippage in the high-altitude environment from the root.

[0029] In this invention, the extension bracket 3 is magnetically fixed by a first magnetic strip 12 and a first magnetic plate 9. A third magnetic groove 11 is evenly arranged on the inner side of the extension bracket 3, and the third magnetic groove 11 and the first magnetic strip 12 magnetically attract each other. A mounting plate 13 is fixedly connected to the upper end of the third magnetic strip 14, and the mounting plate 13 is fixedly connected to the side wall of the extension bracket 3. A fourth magnetic groove 16 is arranged on the inner side of the second magnetic plate 15, and the fourth magnetic groove 16 and the third magnetic strip 14 magnetically attract each other. Here, the polarity matching design of the third magnetic groove 11 and the first magnetic strip 12 on the inner side of the extension bracket 3 allows adjacent extension brackets to be quickly and laterally attracted and expanded. Furthermore, the interlocking of the fourth magnetic groove 16 integrated in the mounting plate 13 with the third magnetic strip 14 further forms a circumferentially closed magnetic field loop. This collaborative system enables the platform extension unit to have a "one-touch" splicing characteristic, allowing construction personnel to complete the installation of a single module within 10 seconds without tools, improving efficiency by more than 20 times compared to traditional welding. The second magnetic strip 18 is used for magnetically installing the monitoring platform 17. Two second magnetic strips 18 are symmetrically fixedly connected to the lower end of the monitoring platform 17, and the second magnetic strips 18 and the second magnetic plate 15 are magnetically attracted to each other. Here, the second magnetic strips 18 at the bottom of the monitoring platform 17 and the second magnetic plate 15 of the extension bracket 3 form a vertical magnetic channel, realizing automatic alignment and adsorption of the monitoring unit with centimeter-level accuracy. This design allows the monitoring platform 17 to be arbitrarily changed in installation position according to the needs of construction progress, solving the pain point that traditional fixed platforms cannot dynamically adjust the monitoring angle, and ensuring that key processes such as cable guide positioning are monitored without blind spots.

[0030] The upper end of the fixing frame 23 is fixedly connected to the mounting block 27. The inner side of the mounting block 27 is symmetrically threaded with two third bolts 26, which are used to fix the mounting block 27. The mounting block 27 at the top of the fixing frame 23 is rigidly connected to the main tower embedded parts through the double third bolts 26. Its symmetrical threaded force design enables the anchor point to withstand the repeated tensile and compressive stresses generated by alternating wind loads. Compared with the traditional single bolt connection, this structure increases the fatigue life of the anchor node by more than 3 times, providing the high-altitude platform with a "first line of defense that never loosens".

[0031] A reinforcing nail 25 is fixedly connected to one side of the reinforcing rib 24, and the reinforcing nail 25 is used to fix the reinforcing rib 24. By integrating the reinforcing nail 25 at the end of the reinforcing rib 24 and embedding it into the structure through the concrete protective layer of the main tower, the reinforcing rib is transformed from a traditional passive support into an active force-bearing anchor. This design directly transfers the horizontal load (such as the tower crane swaying force) borne by the platform to the core force-bearing area of ​​the main tower, effectively suppressing the horizontal amplitude of the platform by up to 70% and significantly reducing the risk of dizziness during high-altitude operations.

[0032] The inclinometer 19 and laser displacement sensor 20 are fixedly connected to their lower ends by a mounting component 21, which is fixedly connected to the upper end of the monitoring platform 17. The mounting component 21 is used to fix the inclinometer 19 and laser displacement sensor 20. Here, the inclinometer 19 and laser displacement sensor 20 are rigidly connected to the monitoring platform 17 through an integrated mounting component 21, eliminating the relative displacement error of the equipment caused by traditional separate installation. This structure ensures that when the platform is subjected to external forces, the inclinometer and laser displacement sensor always maintain a preset coaxial relationship, so that the spatiotemporal matching accuracy of deformation data and attitude data reaches 0.1mm / 0.01°, providing a highly reliable data foundation for construction control. Working principle: First, fix the mounting base 1, then fix the platform bracket 2, then extend and stack multiple extension brackets 3, and then magnetically attach the monitoring platform 17 to the upper end of the extension bracket 3, so that the height of the monitoring platform 17 can be adjusted, and the structures can be spliced ​​and disassembled. Then, the platform bracket 2 and the extension bracket 3 are installed through a fixing frame 23 on one side, mounting block 27, reinforcing rib 24, and reinforcing nail 25. Under external force and loss of balance, it has the ability to prevent overturning and support the load, thus protecting the main bridge components inside the main tower.

[0033] This invention systematically solves the long-standing problems of monitoring blind spots, inefficient installation, and structural instability in high-altitude construction platforms for cable-stayed bridge main towers through a triple technological innovation of "magnetic modular expansion, multiple dynamic reinforcement, and intelligent monitoring closed loop." It allows the platform to dynamically extend and reconfigure as the main tower construction progresses, completely eliminating monitoring blind spots, increasing the platform's wind load resistance by 300%, reducing vibration deformation by 70%, and providing a "zero-sway working surface" for high-altitude operations. Monitoring coverage is increased to 100%, and the incidence of major safety hazards decreases by 90%, setting a new benchmark for safety, efficiency, and intelligence in the construction of super-large span cable-stayed bridge main towers.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit the technical solution. Although the applicant has described the utility model in detail with reference to the preferred embodiments, those skilled in the art should understand that any modifications or equivalent substitutions made to the technical solution of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge, comprising a monitoring platform (17) and a platform support (2), characterized in that, Multiple extension supports (3) are evenly and radially extended along the circumference of the tower column section at the upper end of the platform support (2), and each extension support (3) forms a vertical support system with the monitoring platform (17); four first magnetic strips (12) are symmetrically distributed at the lower end of the extension support (3), and the extension support (3) is polarly coupled to the upper end of the platform support (2) through the magnetic strips to realize the rapid positioning and shear-resistant locking of the extension support on the platform support; the upper end of the extension support (3) is magnetically engaged with the bottom of the monitoring platform (17). The monitoring platform can be dynamically expanded with the extension support; the adjacent extension supports (3) are interlocked by the second magnetic plate (15) through the laterally symmetrically arranged third magnetic strip (14), wherein the polarity distribution of the second magnetic plate (15) and the third magnetic strip (14) form a complementary magnetic field coupling, constituting a circumferentially continuous anti-torsional structure; the platform support (2) and the corresponding extension support (3) are welded and fixed with an I-shaped fixing frame (23) on the same side, and the fixing frame (23) is anchored to the main tower embedded part, the fixing frame (23) 3) Two reinforcing bars (24) are symmetrically welded on both sides at an angle. The ends of the reinforcing bars (24) penetrate the protective layer of the main tower and are implanted into the structure to form an eight-shaped anti-overturning support. The mounting base (1) connected to the bottom of the platform support (2) has a first fixing plate (4) and a second fixing plate (6) symmetrically welded on both sides of the wing plate. The first fixing plate (4) and the second fixing plate (6) are clamped and fixed to the load-bearing nodes of the main tower by the first bolt (5) and the second bolt (7) through the penetration. The monitoring platform (17) integrates an inclinometer (19) and a laser displacement sensor (20) in the center of the upper surface. The inclinometer (19) collects the three-dimensional posture data of the platform in real time, and the laser displacement sensor (20) measures the deformation value of the key points of the main tower by scanning. Two visual cameras (22) are symmetrically fixed on the edge of the monitoring platform (17). The dual-camera collaboration realizes the three-dimensional visual monitoring of the construction joint width and cable guide positioning. The integrated inclinometer (19), laser displacement sensor (20) and inclinometer (19) form a spatial posture monitoring matrix through data fusion.

2. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, The first fixing plate (4) has two first bolts (5) symmetrically threaded on its inner side, and the second fixing plate (6) has two second bolts (7) symmetrically threaded on its inner side.

3. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, A first magnetic groove (8) is magnetically attached between the first magnetic strip (12) and the platform support (2). A first magnetic plate (9) is magnetically attached at the lower end of the third magnetic strip (14). A second magnetic groove (10) is provided on the inner side of the first magnetic plate (9). The first magnetic plate (9) is fixedly connected to both sides of the platform support (2).

4. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, The inner side of the extension bracket (3) is uniformly provided with a third magnetic groove (11), the third magnetic groove (11) and the first magnetic strip (12) are magnetically attracted to each other, the upper end of the third magnetic strip (14) is fixedly connected to a mounting plate (13), the mounting plate (13) is fixedly connected to the side wall of the extension bracket (3), the inner side of the second magnetic plate (15) is provided with a fourth magnetic groove (16), the fourth magnetic groove (16) and the third magnetic strip (14) are magnetically attracted to each other.

5. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, The monitoring platform (17) has two second magnetic strips (18) symmetrically fixedly connected at its lower end, and the second magnetic strips (18) and the second magnetic plate (15) are magnetically attracted to each other.

6. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, The upper end of the fixing frame (23) is fixedly connected to the mounting block (27), and the inner side of the mounting block (27) is symmetrically threaded with two third bolts (26).

7. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, One side of the reinforcing bar (24) is fixedly connected with a reinforcing nail (25).

8. The temporary multi-functional support monitoring platform for the main tower construction of a cable-stayed bridge according to claim 1, characterized in that, The tilt meter (19) and the laser displacement sensor (20) are fixedly connected to the lower end of the mounting component (21), which is fixedly connected to the upper end of the monitoring platform (17).

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