Full-intelligent monitoring synchronous rotation construction method for double-width T-shaped steel box girder

Abstract

The invention discloses a full-intelligent monitoring synchronous swivel construction method for a double-width T-shaped steel box girder, and particularly relates to the technical field of railway swivel bridges, which comprises the steps of intelligent planning and preparation, efficient foundation treatment, intelligent temporary support construction, precise spherical hinge and abutment construction, automatic steel box girder splicing and welding, swivel and girder falling, guardrail installation and comprehensive monitoring and acceptance. According to the full-intelligent monitoring synchronous rotation construction method for the double-width T-shaped steel box girder, through mutual cooperation of multiple advanced technologies, high-precision construction and high-quality control are achieved, from construction planning to specific operation, the installation precision and the material quality of the steel box girder are ensured, abutment construction and bridge deck pavement are intelligently monitored, the overall quality of a project is improved, and the construction period is shortened. Construction efficiency is improved through immersive technical disclosure, construction safety and stability are guaranteed through various intelligent technologies, the service life of a bridge deck is prolonged, quality of the bridge deck is improved through novel concrete, and a reliable scheme is provided for bridge construction.

Description

Technical Field

[0001] The present invention relates to the technical field of railway rotating bridges, and more specifically, to a fully intelligent monitoring synchronous rotating construction method for double-width T-structured steel box girders. Background Art

[0002] With the continuous acceleration of highway construction, more and more railway crossing projects have emerged. Against this background, the double-span 2×56m steel box girder railway crossing rotating bridge project has become one of the important construction projects.

[0003] At present, the construction technology of rotating bridges in China is mostly concrete box girders. It is difficult to meet the linear control during the construction process using beam erection equipment, and there are high safety risks. Through comparison, the use of rotation construction can effectively control the linear trajectory, reduce the impact on the driving safety of existing lines, and reduce safety risks. There are few domestic construction technologies for rapid rotation of steel box girders across railways, and the existing construction technologies need to be optimized to eliminate the drawbacks. The control of the bridge construction stage includes a data acquisition system and a data analysis and processing system. The internal force and line shape of the bridge are adjusted and controlled by combining the two. In order to ensure construction safety and efficiency, a fully intelligent monitoring and synchronous rotation construction method for double-span T-structured steel box girders is proposed. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a fully intelligent monitoring synchronous rotation construction method for a double-width T-structured steel box girder to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a double-width T-structured steel box girder fully intelligently monitored synchronous rotation construction method, specifically comprising the following steps: Step 1: Intelligent planning and preparation. Use building information modeling technology to conduct three-dimensional simulation planning of the construction site, accurately determine the installation area of ​​temporary supports on the left and right sides and the placement of construction equipment, prepare high-strength and lightweight new steel box girder plate materials and ultrasonic flaw detectors with automatic detection functions, and conduct immersive virtual reality technology briefings for construction personnel to improve their understanding and operation accuracy; Step 2: Efficient foundation treatment, using advanced foundation reinforcement technology, laying a 500mm gravel cushion layer, installing sensors to monitor the compaction and bearing capacity changes of the foundation in real time, and testing the foundation bearing capacity. After meeting the requirements, pour 150mm thick C25 concrete to harden; Step 3: Intelligent temporary support construction, design and use an intelligent temporary support system that can automatically adjust the height and angle, connect it to the central control system through strain gauge sensors and displacement sensors, monitor the force and deformation of the support in real time, and make adjustments. The installation height of the temporary support is 8.31-18.7m. Each steel box girder node is composed of two side-by-side φ426×10 steel pipes, with 5 steel pipes in each row. The steel pipes are horizontally connected with 20b channel steel every 3m, and the diagonal bracing uses L125×10 angle steel. Double rows of HM350×250×9×14 H-shaped steel are arranged on the top of the tire frame. The bottom of the steel pipe is welded to the embedded parts, and the embedded parts are made of 700×700×25mm steel plates; Step 4: Precise ball joint and pier construction. Use high-precision 3D printing technology to make a ball joint model to make the size and shape of the ball joint absolutely accurate. In the pier construction, use intelligent concrete pouring technology and install intelligent bearings to determine whether the flatness and verticality of the pier meet the requirements. If the initial force difference of the bearing is large, the pier may have a tilt quality problem, and the pier should be reconstructed. If the initial displacement does not meet the design requirements, there may be problems with the settlement control measures of the pier, and the pier should be reconstructed. If it meets the requirements, proceed to the next step; Step 5: Automated steel box girder assembly and welding. Use lifting equipment to accurately lift the steel box girder segments to the temporary support. Use laser alignment technology to achieve fast and accurate alignment. Use automated welding robots for welding. During the welding process, the intelligent monitoring system monitors the welding quality in real time. If there is a problem, it will automatically alarm and adjust the welding parameters. Step 6: Rotation and beam drop. The rotation equipment is equipped with an advanced artificial intelligence control system, which automatically adjusts the rotation speed and angle according to the real-time monitored wind speed and temperature environmental factors. During the trial rotation and formal rotation, the Beidou positioning navigation system and sensors are used to accurately control the rotation position. When dropping the beam, a synchronous jack system is used to adjust the position and height of the beam to complete the precise beam drop. A high-precision 3D scanner is used to conduct a comprehensive inspection of the installation position and posture of the beam, and a comparative analysis is conducted with the design requirements. If there is any deviation, timely adjustments are made; Step 7: Guardrail installation and comprehensive monitoring and acceptance. Use robots to install steel structure anti-collision guardrails. Use new materials for bridge deck paving, automatically adjust performance according to traffic flow and environmental changes, monitor bridge deck ancillary projects through non-destructive testing technology, timely discover and deal with potential problems, and finally conduct a comprehensive acceptance evaluation.

[0006] Preferably, the building information modeling technology in step one is used to perform three-dimensional simulation planning of the construction site, which can accurately determine the installation area of ​​the left and right temporary supports and the placement position of the construction equipment. The ultrasonic flaw detector in step one is used to perform flaw detection on the high-strength, lightweight new steel box girder plate material to avoid internal cracks, pores and slag inclusion defects in the steel box girder plate material.

[0007] Preferably, the immersive virtual reality technology in step one creates a realistic three-dimensional virtual construction scene for construction workers, allowing workers to clearly see the structure of the steel box girder, the installation position of the temporary support, and the placement of construction equipment. The foundation processing technology in step two uses a method combining high-pressure jet grouting with geosynthetics to quickly improve the bearing capacity of the foundation.

[0008] Preferably, the bracket in step three is made of high-strength alloy material, the strain gauge sensor in step three is attached to the surface of the bracket rod, and the force magnitude is calculated by measuring the strain of the rod when it is subjected to force, and the displacement sensor in step three is used to monitor the displacement of the top of the bracket in the vertical and horizontal directions to determine whether the bracket has tilted or settled.

[0009] Preferably, the 3D printing technology in step 4 is used to accurately print the three-dimensional shape and complex internal structure of the ball joint layer by layer through the data of the computer-aided design model, so as to ensure that the ball joint can achieve smooth rotation during use.

[0010] Preferably, the intelligent concrete pouring technology in step 4 is used to monitor the temperature, humidity and strength development of concrete in real time to ensure the quality of the pier, and the intelligent bearing in step 4 is used to transmit the bearing force and displacement data in real time.

[0011] Preferably, in step seven, a robot is used to install the steel structure anti-collision guardrail to ensure installation accuracy and aesthetics.

[0012] Preferably, the new material in step seven is ultra-high toughness concrete, which is a cement-based composite material made of cement, mineral admixtures, fine aggregate, steel fiber and water-reducing agent. It has the characteristics of high tensile strength, high toughness and high durability, and can significantly reduce creep and reduce the risk of fatigue cracking of steel bridge decks.

[0013] Preferably, the nondestructive testing technology in step seven is specifically ultrasonic testing and radar testing. Ultrasonic testing is specifically to emit ultrasonic waves into the interior of the concrete through ultrasonic testing equipment, and judge whether there are defects inside the concrete according to the propagation speed of the ultrasonic waves in the concrete and the characteristics of the reflected wave signal. Radar testing is specifically to emit high-frequency electromagnetic waves through ground-penetrating radar. The electromagnetic waves will be reflected at the interfaces of different media. By receiving and analyzing the reflected waves, it is judged whether there is a void between the pavement layer and the base layer.

[0014] Preferably, the high-precision three-dimensional scanner in step six can obtain the three-dimensional coordinate information of a large number of points on the surface of the beam with extremely high accuracy, and its measurement accuracy can reach millimeter level or even higher, thereby accurately reflecting the actual spatial position and posture of the beam and ensuring the accuracy and quality of the beam installation.

[0015] Technical effects and advantages of the present invention: 1. By using building information modeling technology to carry out three-dimensional simulation planning of the construction site, the installation area of ​​the temporary brackets on the left and right sides and the placement of construction equipment are accurately determined, providing accurate layout guidance for subsequent construction and reducing construction errors. High-precision 3D printing technology is used to make ball joint models to ensure that the size and shape of the ball joint are absolutely accurate, so that the ball joint can rotate smoothly during use, providing key high-precision components for rotation construction, and laser alignment technology is used to achieve rapid and accurate alignment of steel box girder segments. Automated welding robots are used for welding, and the intelligent monitoring system monitors the welding quality in real time to ensure the accuracy of steel box girder assembly and welding. The rotation equipment is equipped with an advanced artificial intelligence control system, combined with the Beidou positioning and navigation system. The system and sensors accurately control the rotation position. When dropping the beam, a synchronous jack system and a high-precision 3D scanner are used to comprehensively detect the installation position and posture of the beam to ensure the high accuracy of the beam installation. High-strength and lightweight new steel box beam plate materials are prepared, and ultrasonic flaw detectors with automatic detection functions are used to detect the materials to avoid internal cracks, pores and slag inclusion defects in the steel box beam plate materials, ensuring the quality of the steel box beam from the source. Immersive virtual reality technology is used to explain the construction personnel so that the staff can clearly see the structure of the steel box beam, the installation position of the temporary support, and the placement of the construction equipment, improve understanding and operation accuracy, reduce errors and rework in construction, and improve construction efficiency; 2. During the construction of piers, the intelligent concrete pouring technology is used to monitor the temperature, humidity and strength development of concrete in real time to ensure the quality of piers. At the same time, the intelligent bearings are installed to transmit the bearing force and displacement data in real time, so that the quality problems of piers can be discovered and handled in time. The bridge deck pavement adopts a new type of ultra-high toughness concrete, which has the characteristics of high tensile strength, high toughness and high durability. It can greatly reduce creep and reduce the risk of fatigue cracking of steel bridge decks, and improve the service life and quality of bridge decks. The bridge deck pavement adopts a new type of ultra-high toughness concrete, which has the characteristics of high tensile strength, high toughness and high durability. It can greatly reduce creep and reduce the risk of fatigue cracking of steel bridge decks, and improve the service life and quality of bridge decks. The non-destructive testing technology is used to monitor the bridge deck ancillary projects, and potential problems are discovered and handled in time to ensure the quality of the entire project. 3. In summary, through the mutual influence of the above-mentioned multiple effects, the double-span T-structured steel box girder fully intelligent monitoring synchronous rotation construction method achieves high-precision construction and high-quality control through the cooperation of multiple advanced technologies. From construction planning to specific operations, it ensures the installation accuracy and material quality of the steel box girder, intelligently monitors pier construction and bridge deck paving, improves the overall quality of the project, immersive technical briefing improves construction efficiency, multiple intelligent technologies ensure safe and stable construction, and new concrete improves the life and quality of the bridge deck, providing a reliable solution for bridge construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the process structure of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1 The construction method of double-width T-frame steel box girder with full intelligent monitoring and synchronous rotation specifically includes the following steps: Step 1: Intelligent planning and preparation. Use building information modeling technology to conduct three-dimensional simulation planning of the construction site, accurately determine the installation area of ​​temporary supports on the left and right sides and the placement of construction equipment, prepare high-strength and lightweight new steel box girder plate materials and ultrasonic flaw detectors with automatic detection functions, and conduct immersive virtual reality technology briefings for construction personnel to improve their understanding and operation accuracy; Step 2: Efficient foundation treatment, using advanced foundation reinforcement technology, laying a 500mm gravel cushion layer, installing sensors to monitor the compaction and bearing capacity changes of the foundation in real time, and testing the foundation bearing capacity. After meeting the requirements, pour 150mm thick C25 concrete to harden; Step 3: Intelligent temporary support construction. Design and use an intelligent temporary support system that can automatically adjust the height and angle. Connect it to the central control system through strain gauge sensors and displacement sensors to monitor the stress and deformation of the support in real time and make adjustments. The installation height of the temporary support is 8.31m. Each steel box girder node is composed of two side-by-side φ426×10 steel pipes, with 5 steel pipes in each row. The steel pipes are horizontally connected with 20b channel steel every 3m. The diagonal brace uses L125×10 angle steel. Double rows of HM350×250×9×14 H-shaped steel are arranged on the top of the tire frame. The bottom of the steel pipe is welded to the embedded parts, and the embedded parts are made of 700×700×25mm steel plates; Step 4: Precise ball joint and pier construction. Use high-precision 3D printing technology to make a ball joint model to make the size and shape of the ball joint absolutely accurate. In the pier construction, use intelligent concrete pouring technology and install intelligent bearings to determine whether the flatness and verticality of the pier meet the requirements. If the initial force difference of the bearing is large, the pier may have a tilt quality problem, and the pier should be reconstructed. If the initial displacement does not meet the design requirements, there may be problems with the settlement control measures of the pier, and the pier should be reconstructed. If it meets the requirements, proceed to the next step; Step 5: Automated steel box girder assembly and welding. Use lifting equipment to accurately lift the steel box girder segments to the temporary support. Use laser alignment technology to achieve fast and accurate alignment. Use automated welding robots for welding. During the welding process, the intelligent monitoring system monitors the welding quality in real time. If there is a problem, it will automatically alarm and adjust the welding parameters. Step 6: Rotation and beam drop. The rotation equipment is equipped with an advanced artificial intelligence control system, which automatically adjusts the rotation speed and angle according to the real-time monitored wind speed and temperature environmental factors. During the trial rotation and formal rotation, the Beidou positioning navigation system and sensors are used to accurately control the rotation position. When dropping the beam, a synchronous jack system is used to adjust the position and height of the beam to complete the precise beam drop. A high-precision 3D scanner is used to conduct a comprehensive inspection of the installation position and posture of the beam, and a comparative analysis is conducted with the design requirements. If there is any deviation, timely adjustments are made; Step 7: Guardrail installation and comprehensive monitoring and acceptance. Use robots to install steel structure anti-collision guardrails. Use new materials for bridge deck paving, automatically adjust performance according to traffic flow and environmental changes, monitor bridge deck ancillary projects through non-destructive testing technology, timely discover and deal with potential problems, and finally conduct a comprehensive acceptance evaluation.

[0019] Example 2 The construction method of double-width T-frame steel box girder with full intelligent monitoring and synchronous rotation specifically includes the following steps: Step 1: Intelligent planning and preparation. Use building information modeling technology to conduct three-dimensional simulation planning of the construction site, accurately determine the installation area of ​​temporary supports on the left and right sides and the placement of construction equipment, prepare high-strength and lightweight new steel box girder plate materials and ultrasonic flaw detectors with automatic detection functions, and conduct immersive virtual reality technology briefings for construction personnel to improve their understanding and operation accuracy; Step 2: Efficient foundation treatment, using advanced foundation reinforcement technology, laying a 500mm gravel cushion layer, installing sensors to monitor the compaction and bearing capacity changes of the foundation in real time, and testing the foundation bearing capacity. After meeting the requirements, pour 150mm thick C25 concrete to harden; Step 3: Intelligent temporary support construction. Design and use an intelligent temporary support system that can automatically adjust the height and angle. Connect it to the central control system through strain gauge sensors and displacement sensors to monitor the stress and deformation of the support in real time and make adjustments. The installation height of the temporary support is 12.5m. Each steel box girder node is composed of two side-by-side φ426×10 steel pipes, with 5 steel pipes in each row. The steel pipes are horizontally connected with 20b channel steel every 3m. The diagonal brace uses L125×10 angle steel. Double rows of HM350×250×9×14 H-shaped steel are arranged on the top of the tire frame. The bottom of the steel pipe is welded to the embedded parts, and the embedded parts are made of 700×700×25mm steel plates; Step 4: Precise ball joint and pier construction. Use high-precision 3D printing technology to make a ball joint model to make the size and shape of the ball joint absolutely accurate. In the pier construction, use intelligent concrete pouring technology and install intelligent bearings to determine whether the flatness and verticality of the pier meet the requirements. If the initial force difference of the bearing is large, the pier may have a tilt quality problem, and the pier should be reconstructed. If the initial displacement does not meet the design requirements, there may be problems with the settlement control measures of the pier, and the pier should be reconstructed. If it meets the requirements, proceed to the next step; Step 5: Automated steel box girder assembly and welding. Use lifting equipment to accurately lift the steel box girder segments to the temporary support. Use laser alignment technology to achieve fast and accurate alignment. Use automated welding robots for welding. During the welding process, the intelligent monitoring system monitors the welding quality in real time. If there is a problem, it will automatically alarm and adjust the welding parameters. Step 6: Rotation and beam drop. The rotation equipment is equipped with an advanced artificial intelligence control system, which automatically adjusts the rotation speed and angle according to the real-time monitored wind speed and temperature environmental factors. During the trial rotation and formal rotation, the Beidou positioning navigation system and sensors are used to accurately control the rotation position. When dropping the beam, a synchronous jack system is used to adjust the position and height of the beam to complete the precise beam drop. A high-precision 3D scanner is used to conduct a comprehensive inspection of the installation position and posture of the beam, and a comparative analysis is conducted with the design requirements. If there is any deviation, timely adjustments are made; Step 7: Guardrail installation and comprehensive monitoring and acceptance. Use robots to install steel structure anti-collision guardrails. Use new materials for bridge deck paving, automatically adjust performance according to traffic flow and environmental changes, monitor bridge deck ancillary projects through non-destructive testing technology, timely discover and deal with potential problems, and finally conduct a comprehensive acceptance evaluation.

[0020] Example 3 The construction method of double-width T-frame steel box girder with full intelligent monitoring and synchronous rotation specifically includes the following steps: Step 1: Intelligent planning and preparation. Use building information modeling technology to conduct three-dimensional simulation planning of the construction site, accurately determine the installation area of ​​temporary supports on the left and right sides and the placement of construction equipment, prepare high-strength and lightweight new steel box girder plate materials and ultrasonic flaw detectors with automatic detection functions, and conduct immersive virtual reality technology briefings for construction personnel to improve their understanding and operation accuracy; Step 2: Efficient foundation treatment, using advanced foundation reinforcement technology, laying a 500mm gravel cushion layer, installing sensors to monitor the compaction and bearing capacity changes of the foundation in real time, and testing the foundation bearing capacity. After meeting the requirements, pour 150mm thick C25 concrete to harden; Step 3: Intelligent temporary support construction. Design and use an intelligent temporary support system that can automatically adjust the height and angle. Connect it to the central control system through strain gauge sensors and displacement sensors to monitor the stress and deformation of the support in real time and make adjustments. The installation height of the temporary support is 18.7m. Each steel box girder node is composed of two side-by-side φ426×10 steel pipes, with 5 steel pipes in each row. The steel pipes are horizontally connected with 20b channel steel every 3m. The diagonal brace uses L125×10 angle steel. Double rows of HM350×250×9×14 H-shaped steel are arranged on the top of the tire frame. The bottom of the steel pipe is welded to the embedded parts, and the embedded parts are made of 700×700×25mm steel plates; Step 4: Precise ball joint and pier construction. Use high-precision 3D printing technology to make a ball joint model to make the size and shape of the ball joint absolutely accurate. In the pier construction, use intelligent concrete pouring technology and install intelligent bearings to determine whether the flatness and verticality of the pier meet the requirements. If the initial force difference of the bearing is large, the pier may have a tilt quality problem, and the pier should be reconstructed. If the initial displacement does not meet the design requirements, there may be problems with the settlement control measures of the pier, and the pier should be reconstructed. If it meets the requirements, proceed to the next step; Step 5: Automated steel box girder assembly and welding. Use lifting equipment to accurately lift the steel box girder segments to the temporary support. Use laser alignment technology to achieve fast and accurate alignment. Use automated welding robots for welding. During the welding process, the intelligent monitoring system monitors the welding quality in real time. If there is a problem, it will automatically alarm and adjust the welding parameters. Step 6: Rotation and beam drop. The rotation equipment is equipped with an advanced artificial intelligence control system, which automatically adjusts the rotation speed and angle according to the real-time monitored wind speed and temperature environmental factors. During the trial rotation and formal rotation, the Beidou positioning navigation system and sensors are used to accurately control the rotation position. When dropping the beam, a synchronous jack system is used to adjust the position and height of the beam to complete the precise beam drop. A high-precision 3D scanner is used to conduct a comprehensive inspection of the installation position and posture of the beam, and a comparative analysis is conducted with the design requirements. If there is any deviation, timely adjustments are made; Step 7: Guardrail installation and comprehensive monitoring and acceptance. Use robots to install steel structure anti-collision guardrails. Use new materials for bridge deck paving, automatically adjust performance according to traffic flow and environmental changes, monitor bridge deck ancillary projects through non-destructive testing technology, timely discover and deal with potential problems, and finally conduct a comprehensive acceptance evaluation.

[0021] The above-mentioned double-width T-shaped steel box girder fully intelligent monitoring synchronous rotation construction method of Examples 1-3 was evaluated respectively; the following data were obtained specifically: Example Temporary support installation height Construction quality Example 1 8.31m qualified Example 2 12.5m high Example 3 18.7m Very high The three embodiments all adopt the construction method of fully intelligent monitoring and synchronous rotation of double-width T-structured steel box girders. First, intelligent planning and preparation are carried out through building information modeling technology to determine the installation area of ​​temporary brackets and the placement of construction equipment. New materials and flaw detectors are prepared and immersive virtual reality technology is explained. Then, efficient foundation treatment is carried out, and an intelligent temporary bracket system is built and its stress and deformation are monitored in real time. Then, high-precision 3D printing technology is used for precise ball joint and pier construction to ensure that the flatness and verticality meet the requirements. In the automated steel box girder assembly and welding process, hoisting equipment, laser alignment technology and automated welding robots are used, and the welding quality is monitored in real time by an intelligent monitoring system. In the process of rotation and beam dropping, advanced artificial intelligence control systems, Beidou positioning navigation systems and sensors are equipped to achieve precise control. Finally, robots are used to install steel structure anti-collision guardrails, new bridge deck paving materials are used, and monitoring is carried out through non-destructive testing technology to complete comprehensive acceptance and evaluation. The difference between the three embodiments mainly lies in the change of the installation height of the temporary bracket, but the overall construction process and the adopted intelligent technology ensure the high-quality and high-precision construction of each project, reflecting the reliability and advancement of the fully intelligent monitoring and synchronous rotation construction method.

[0022] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Double-width T-frame steel box girder fully intelligent monitoring synchronous rotation construction method, Features: The specific steps include: Step 1: Intelligent planning and preparation. Use building information modeling technology to conduct three-dimensional simulation planning of the construction site, accurately determine the installation area of ​​temporary supports on the left and right sides and the placement of construction equipment, prepare high-strength and lightweight new steel box girder plate materials and ultrasonic flaw detectors with automatic detection functions, and conduct immersive virtual reality technology briefings for construction personnel to improve their understanding and operation accuracy; Step 2: Efficient foundation treatment, using advanced foundation reinforcement technology, laying a 500mm gravel cushion layer, installing sensors to monitor the compaction and bearing capacity changes of the foundation in real time, and testing the foundation bearing capacity. After meeting the requirements, pour 150mm thick C25 concrete to harden; Step 3: Intelligent temporary support construction. Design and use an intelligent temporary support system that can automatically adjust the height and angle. Connect it to the central control system through strain gauge sensors and displacement sensors to monitor the stress and deformation of the support in real time and make adjustments. The installation height of the temporary support is 8.31-18.7m. Each steel box girder node is composed of two side-by-side φ426×10 steel pipes, with 5 steel pipes in each row. The steel pipes are horizontally connected with 20b channel steel every 3m. The diagonal brace uses L125×10 angle steel. Double rows of HM350×250×9×14 H-shaped steel are arranged on the top of the tire frame. The bottom of the steel pipe is welded to the embedded parts, and the embedded parts are made of 700×700×25mm steel plates; Step 4: Precise ball joint and pier construction. Use high-precision 3D printing technology to make a ball joint model to make the size and shape of the ball joint absolutely accurate. In the pier construction, use intelligent concrete pouring technology and install intelligent bearings to determine whether the flatness and verticality of the pier meet the requirements. If the initial force difference of the bearing is large, the pier may have a tilt quality problem, and the pier should be reconstructed. If the initial displacement does not meet the design requirements, there may be problems with the settlement control measures of the pier, and the pier should be reconstructed. If it meets the requirements, proceed to the next step; Step 5: Automated steel box girder assembly and welding. Use lifting equipment to accurately lift the steel box girder segments to the temporary support. Use laser alignment technology to achieve fast and accurate alignment. Use automated welding robots for welding. During the welding process, the intelligent monitoring system monitors the welding quality in real time. If there is a problem, it will automatically alarm and adjust the welding parameters. Step 6: Rotation and beam drop. The rotation equipment is equipped with an advanced artificial intelligence control system, which automatically adjusts the rotation speed and angle according to the real-time monitored wind speed and temperature environmental factors. During the trial rotation and formal rotation, the Beidou positioning navigation system and sensors are used to accurately control the rotation position. When dropping the beam, a synchronous jack system is used to adjust the position and height of the beam to complete the precise beam drop. A high-precision 3D scanner is used to conduct a comprehensive inspection of the installation position and posture of the beam, and a comparative analysis is conducted with the design requirements. If there is any deviation, timely adjustments are made; Step 7: Guardrail installation and comprehensive monitoring and acceptance. Use robots to install steel structure anti-collision guardrails. Use new materials for bridge deck paving, automatically adjust performance according to traffic flow and environmental changes, monitor bridge deck ancillary projects through non-destructive testing technology, timely discover and deal with potential problems, and finally conduct a comprehensive acceptance evaluation.

2. According to the double-width T-shaped steel box girder fully intelligent monitoring synchronous rotation construction method of claim 1, Features: The building information modeling technology in step one is used to perform three-dimensional simulation planning of the construction site, which can accurately determine the installation area of ​​the temporary supports on the left and right sides and the placement of the construction equipment. The ultrasonic flaw detector in step one is used to perform flaw detection on the high-strength, lightweight new steel box girder plate material to avoid internal cracks, pores and slag inclusion defects in the steel box girder plate material.

3. According to the double-width T-shaped steel box girder fully intelligent monitoring synchronous rotation construction method of claim 1, Features: The immersive virtual reality technology in step one creates a realistic three-dimensional virtual construction scene for construction workers, allowing them to clearly see the structure of the steel box girder, the installation position of the temporary support, and the placement of construction equipment. The foundation processing technology in step two uses a method combining high-pressure jet grouting with geosynthetics to quickly improve the bearing capacity of the foundation.

4. According to the double-width T-shaped steel box girder fully intelligent monitoring synchronous rotation construction method of claim 1, Features: In step three, the bracket is made of high-strength alloy material. In step three, the strain gauge sensor is attached to the surface of the bracket rod. The force magnitude is calculated by measuring the strain of the rod when it is subjected to force. The displacement sensor in step three is used to monitor the displacement of the top of the bracket in the vertical and horizontal directions to determine whether the bracket has tilted or settled.

5. According to the double-width T-shaped steel box girder fully intelligent monitoring synchronous rotation construction method of claim 1, Features: In step 4, the 3D printing technology is used to accurately print the three-dimensional shape and complex internal structure of the ball joint layer by layer through the data of the computer-aided design model, so as to ensure that the ball joint can achieve smooth rotation during use.

6. The fully intelligent monitoring synchronous rotation construction method of the double-width T-shaped steel box girder according to claim 1, Features: The intelligent concrete pouring technology in step 4 is used to monitor the temperature, humidity and strength development of concrete in real time to ensure the quality of the pier, and the intelligent bearing in step 4 is used to transmit the bearing force and displacement data in real time.

7. The fully intelligent monitoring synchronous rotation construction method of double-width T-shaped steel box beam according to claim 1, Features: In step seven, a robot is used to install the steel structure anti-collision guardrail to ensure installation accuracy and aesthetics.

8. The fully intelligent monitoring synchronous rotation construction method of the double-width T-shaped steel box girder according to claim 1, Features: The new material in step seven is specifically ultra-high toughness concrete, which is a cement-based composite material made of cement, mineral admixtures, fine aggregate, steel fiber and water-reducing agent. It has the characteristics of high tensile strength, high toughness and high durability, and can significantly reduce creep and reduce the risk of fatigue cracking of steel bridge decks.

9. The fully intelligent monitoring synchronous rotation construction method of double-width T-shaped steel box girder according to claim 1, Features: The nondestructive testing technology in step seven is specifically ultrasonic testing and radar testing. Ultrasonic testing is specifically to emit ultrasonic waves into the interior of the concrete through ultrasonic testing equipment, and judge whether there are defects inside the concrete according to the propagation speed of the ultrasonic waves in the concrete and the characteristics of the reflected wave signal. Radar testing is specifically to emit high-frequency electromagnetic waves through ground-penetrating radar. The electromagnetic waves will be reflected at the interfaces of different media. By receiving and analyzing the reflected waves, it is judged whether there is a gap between the pavement layer and the base layer.

10. The fully intelligent monitoring synchronous rotation construction method of the double-width T-shaped steel box girder according to claim 1, Features: The high-precision 3D scanner in step six can obtain the 3D coordinate information of a large number of points on the beam surface with extremely high accuracy, and its measurement accuracy can reach millimeter level or even higher, thereby accurately reflecting the actual spatial position and posture of the beam and ensuring the accuracy and quality of the beam installation.

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