Method and device for distributing longitudinal bars of high-speed railway box girder

Abstract

The invention relates to a high-speed railway box girder longitudinal bar distribution method, which comprises the following steps of S1, setting a longitudinal bar datum line at a preset position of a box girder template through a high-precision laser measurement tool and a digital positioning system, and ensuring that the initial position of a longitudinal bar is accurately butted with a design drawing, so that the distribution error is reduced to the greatest extent; through a high-precision laser measuring tool, a digital positioning system and laser scanning equipment, it is ensured that the arrangement precision of longitudinal bars reaches the millimeter level, the distribution error is reduced to the maximum extent, the construction quality is ensured, manual intervention is reduced through an automatic steel bar bracket mounting device and an automatic binding device of a multi-axis mechanical arm structure, and the construction efficiency is improved. The construction efficiency is improved, it is ensured that the installation precision of the steel bars is highly consistent with the design requirement, in addition, a real-time monitoring system is arranged in the whole material distribution process and comprises a sensor, a visual recognition system and a holographic projection technology, and deviation can be detected and corrected in real time in the longitudinal bar arrangement process.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and particularly to a method and device for distributing longitudinal steel bars of high-speed railway box girders. Background Art

[0002] High-speed railway box girders are important structures commonly seen in railway construction. Their structural strength and stability are crucial for the safety of the entire railway bridge. As the core process of the box girder structure, the distribution of longitudinal steel bars directly affects the load-bearing capacity and anti-deformation performance of the box girder. The accuracy requirements for the method and device of distributing longitudinal steel bars are extremely high, and it is necessary to strictly follow the design standards and construction specifications during the construction process.

[0003] In the actual implementation process, traditional distribution of longitudinal steel bars relies on manual measurement, arrangement, and binding, which easily leads to the accumulation of errors. Especially when there are a large number of steel bars and the construction environment is complex, manual errors will significantly affect the construction accuracy. The present invention uses laser measurement tools and automated equipment, greatly reducing human errors and ensuring the accuracy of the arrangement of longitudinal steel bars. Moreover, traditional methods rely on a large number of manual operations, resulting in a long construction period and low efficiency. Especially during the process of positioning and binding steel bars, manual operations are both time-consuming and laborious, and it is difficult to ensure the accuracy of each step. By using an automated steel bar bracket installation device and an automated binding device with a multi-axis robotic arm structure, the construction efficiency is significantly improved and manual intervention is reduced. Traditional methods are difficult to ensure the high precision of the arrangement of longitudinal steel bars, especially in terms of the position, angle, and geometric shape of the longitudinal steel bars. Through a real-time monitoring system, including sensors, visual recognition systems, and holographic projection technology, the present invention can immediately detect and correct deviations during the arrangement process, ensuring that the installation accuracy of the steel bars is consistent with the design requirements, reaching millimeter-level accuracy. After the completion of construction using traditional distribution methods, quality inspection mostly relies on manual checking one by one, and it is difficult to quickly discover and correct problems. After the distribution is completed, the present invention uses a 3D scanner to comprehensively inspect the arrangement of longitudinal steel bars and generate a detailed report, which is convenient for later review and quality control to ensure that the construction quality meets the design requirements. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In order to solve the above problems of the prior art, the present invention provides a method and device for distributing longitudinal steel bars of high-speed railway box girders, which solve the problems that traditional methods of distributing longitudinal steel bars rely on manual measurement and operation, easily lead to the accumulation of errors, especially when there are a large number of steel bars and the construction environment is complex, manual errors significantly affect the construction accuracy, the construction efficiency is low and the accuracy is difficult to guarantee, and the quality inspection is cumbersome and untimely.

[0006] (II) Technical Solutions

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention are as follows:

[0008] Method for distributing longitudinal reinforcement bars of high-speed railway box girders, comprising the following steps:

[0009] S1: On the preset positions of the box girder formwork, set the longitudinal reinforcement baseline through a high-precision laser measurement tool and a digital positioning system to ensure the accurate docking of the initial positions of the longitudinal reinforcement bars with the design drawings, thereby minimizing the distribution error to the greatest extent;

[0010] S2: According to the requirements of the design drawings, arrange the longitudinal reinforcement bars in sequence. Each longitudinal reinforcement bar selects an appropriate diameter and strength according to the load requirements to ensure that the length, quantity and spacing of the steel bars fully comply with the design specifications and construction requirements;

[0011] S3: Install steel bar brackets at the predetermined positions of each longitudinal reinforcement bar. The steel bar brackets are designed to be adjustable, can automatically adjust the bracket positions according to box girders of different sizes, and the brackets are made of high-strength steel that is corrosion-resistant and high-temperature-resistant;

[0012] S4: Accurately place the longitudinal reinforcement bars on the brackets, use a mechanical device to assist in positioning, with the positioning accuracy reaching the millimeter level, and use sensors and a vision recognition system to monitor the positions of the steel bars in real time to ensure that the longitudinal reinforcement bars are in place completely;

[0013] S5: Fix the longitudinal reinforcement bars through a fully automated tying device. During the tying process, detect the tension of each longitudinal reinforcement bar through built-in sensors and automatically adjust the tying force;

[0014] S6: After tying is completed, use a laser scanning device to accurately check the arrangement of the longitudinal reinforcement bars. The scanning system can automatically identify the installation positions and angles of the longitudinal reinforcement bars and output a scanning report;

[0015] S7: Fine-tune the steel bars and use adjustable steel bar limit clamps for secondary fine-tuning;

[0016] S8: After the steel bar arrangement is completed, use an adaptive anti-vibration fixing clamp to stabilize the steel bars.

[0017] The distribution of the longitudinal reinforcement bars is carried out in sections. After each section is arranged, immediately use a laser scanning system for detection to accurately confirm the positions and angles of the longitudinal reinforcement bars in each section, and use an image recognition system to adjust the deviation in real time. The steel bar bracket is an adjustable steel bar bracket, and its adjustment range can cover box girders of different specifications. The adjustable steel bar bracket uses high-strength steel and is coated with an anti-corrosion layer.

[0018] The described automatic tying device adopts a multi-axis robotic arm structure. This automatic tying device can precisely control the tying position and strength, and is built-in with sensors to monitor the tying accuracy in real time. After tying is completed, the system automatically feeds back the results and conducts quality assessment. The placement and tying process of the steel bars are dynamically monitored in real time through a laser positioning system. The laser system is linked with the numerical control system, which can real-time feedback the minute deviation of the longitudinal bar position and automatically adjust the arrangement of the steel bars.

[0019] The described steel bar adjusting limit fixture adopts an electric fine-tuning structure and conducts millimeter-level spacing fine-tuning through a lead screw transmission mechanism. The steel bar adjusting limit fixture can be equipped with high-precision ball bearings, which can simultaneously fine-tune multiple longitudinal bars, and can be combined with a laser distance sensor to provide real-time spacing feedback to guide the adjustment of the steel bar adjusting limit fixture.

[0020] The self-adaptive anti-vibration fixing fixture adopts a double-layer elastic buffer structure, uses high-strength alloy springs and shape memory alloys to buffer and reinforce the steel bars, can automatically adjust the clamping strength according to the vibration frequency, and through an electric locking device, the self-adaptive anti-vibration fixing fixture can automatically expand and increase the clamping area after the steel bars are fixed. The contact surface of the self-adaptive anti-vibration fixing fixture is covered with a flexible buffer coating, and the specific material of the flexible buffer coating is polyurethane elastomer PU.

[0021] During the steel bar installation process, after the arrangement of each section of longitudinal bars is completed, the operator immediately rechecks the position of the longitudinal bars using a digital measuring tool, and also uses a holographic projection device to further confirm the accurate position of each longitudinal bar during the measurement process.

[0022] The installation process of each steel bar is equipped with an automatic feedback system. Through this system, the accurate position of each steel bar can be monitored in real time and automatically adjusted. The system can immediately issue a warning and automatically correct it when there is a minute deviation in the steel bar.

[0023] After the steel bar placement is completed, the installation positions, tying quality, and steel bar spacing of all longitudinal bars are comprehensively detected by a 3D scanner, and a report is generated by the system for convenient later review and quality inspection. The system can also be linked with the construction management platform to achieve real-time data sharing.

[0024] The longitudinal bar placement device for high-speed railway box girders, which is applied to the longitudinal bar placement method for girders described in any one of claims 1-8, includes:

[0025] The precise positioning device combines a laser rangefinder, an infrared sensor, and vision recognition technology to achieve precise positioning of the longitudinal bars and can adjust the position of the longitudinal bars in real time;

[0026] The automatic steel bar bracket installation device can automatically adjust the installation position of the bracket according to different specifications of the girder body, and the bracket is installed through an automated operation by a robotic arm during the installation process;

[0027] A laser scanning device that can scan the entire longitudinal reinforcement layout area, generate a real-time three-dimensional image, and verify and adjust the layout accuracy of the longitudinal reinforcement.

[0028] The laser scanning device can detect and adjust any deviation in the longitudinal reinforcement layout in real time, adjust the working parameters of the device in real time through an automatic feedback function, and can generate a detailed scanning report for construction management personnel to conduct subsequent audits and quality control.

[0029] (III) Beneficial effects

[0030] The beneficial effects of the present invention are as follows: Through high-precision laser measurement tools, digital positioning systems, and laser scanning equipment, the layout accuracy of the longitudinal reinforcement is ensured to reach the millimeter level, minimizing the placement error to the greatest extent, guaranteeing the construction quality. By using an automated steel bar support installation device and an automated tying device with a multi-axis robotic arm structure, manual intervention is reduced, construction efficiency is improved, and the installation accuracy of the steel bars is ensured to be highly consistent with the design requirements. In addition, the entire placement process is equipped with a real-time monitoring system, including sensors, vision recognition systems, and holographic projection technology, which can detect and correct deviations in real time during the longitudinal reinforcement layout process to ensure that the position and angle of the steel bars are accurate and meet the design standards. After the placement is completed, a three-dimensional scanner conducts a comprehensive inspection of the longitudinal reinforcement layout and generates a detailed report for convenient subsequent audits and quality control. The system can also be linked with the construction management platform to achieve real-time data sharing and precise analysis, improving the project management efficiency. This method and device not only improve the construction accuracy and quality but also optimize the construction process through automation and intelligent control, significantly shortening the construction period, reducing costs, and improving the construction safety and stability. And it is equipped with an adaptive anti-vibration fixing fixture. The adaptive anti-vibration fixing fixture adopts a double-layer elastic buffer structure, combined with a high-strength alloy spring and a shape memory alloy, to ensure that when the steel bars are affected by external forces or construction vibrations, dynamic buffering and stable support are provided. Through an electric fine-tuning structure, millimeter-level spacing fine-tuning is achieved through a high-precision lead screw drive mechanism to ensure that the longitudinal reinforcement layout meets the design requirements. High-precision ball bearings are embedded inside the fixture, which can reduce friction, improve the adjustment stability, and support the synchronous fine-tuning of multiple steel bars to ensure that the overall arrangement is neat and consistent. Description of the drawings

[0031] Figure 1 It is a schematic flow chart of the placement method of the present invention;

[0032] Figure 2 It is a schematic structural diagram of the placement device of the present invention. Detailed implementation manners

[0033] To better explain the present invention for easy understanding, the present invention will be described in detail below with reference to the drawings through specific implementation manners.

[0034] Please refer to Figures 1 to 2 as shown in the figure, the longitudinal reinforcement cloth laying method for high-speed railway box girders of the present invention includes the following steps:

[0035] S1: On the preset positions of the box girder formwork, set the longitudinal reinforcement reference line through high-precision laser measurement tools and digital positioning systems to ensure that the initial positions of the longitudinal reinforcements are accurately docked with the design drawings, thereby minimizing the cloth laying error to the greatest extent;

[0036] S2: According to the requirements of the design drawings, arrange the longitudinal reinforcements in sequence. Each longitudinal reinforcement selects an appropriate diameter and strength according to the load requirements to ensure that the length, quantity and spacing of the steel bars fully comply with the design specifications and construction requirements;

[0037] S3: Install steel bar brackets at the predetermined positions of each longitudinal reinforcement. The steel bar brackets are designed to be adjustable and can automatically adjust the bracket positions according to the box girders of different sizes. Moreover, the brackets are made of high-strength steel that is corrosion-resistant and heat-resistant;

[0038] S4: Place the longitudinal reinforcements accurately on the brackets, use mechanical devices to assist in positioning, with the positioning accuracy reaching the millimeter level, and use sensors and vision recognition systems to monitor the positions of the steel bars in real time to ensure that the longitudinal reinforcements are in place completely;

[0039] S5: Fix the longitudinal reinforcements through fully automated binding equipment. During the binding process, detect the tension of each longitudinal reinforcement through built-in sensors and automatically adjust the binding force;

[0040] S6: After the binding is completed, use a laser scanning device to accurately inspect the arrangement of the longitudinal reinforcements. The scanning system can automatically identify the installation positions and angles of the longitudinal reinforcements and output a scanning report;

[0041] S7: Fine-tune the steel bars and use adjustable steel bar limit clamps for secondary fine-tuning;

[0042] S8: After the steel bars are arranged, an adaptive anti-vibration fixing fixture is used to stabilize the steel bars. In the actual implementation process, through high-precision laser measurement tools and digital positioning systems, the precise docking of the initial positions of the longitudinal bars is ensured, greatly reducing the placing error and improving the construction accuracy and reliability. During the placing process, each longitudinal bar is precisely placed according to the requirements of the design drawings, and the appropriate steel bar diameter and strength are selected according to the load requirements to ensure that the size, quantity, and spacing of the steel bars fully comply with the specifications. The design of the adjustable steel bar bracket provides flexible support for the longitudinal bars, which can automatically adjust the position according to the box girders of different sizes and is made of high-strength steel that is corrosion-resistant and heat-resistant, enhancing the durability and stability of the equipment. A mechanical device is used to assist in positioning, and a sensor and vision recognition system are combined to monitor the position of the steel bars in real time to ensure the precision of the longitudinal bar positioning, reaching millimeter-level accuracy. In addition, the longitudinal bars are automatically fixed by a fully automated tying device. The built-in sensor can monitor the tension of each steel bar in real time and automatically adjust the tying force to ensure that the tying process meets the national standards and design requirements, avoiding human errors and improving work efficiency. After tying, a laser scanning device precisely checks the arrangement of the longitudinal bars, which can automatically identify the installation position and angle of the steel bars and output a detailed scanning report. This process not only verifies the compliance of the position and geometric shape of each steel bar but also ensures the traceability of the entire construction process through precise data detection, contributing to the subsequent quality review and management. At the same time, through the data interconnection with the construction management platform, the quality control of the project is further optimized, ensuring the efficiency, reliability, and engineering quality of the construction process.

[0043] It should be noted that during the placing process of the longitudinal bars of high-speed railway box girders, ensuring the precise docking of the initial positions of the longitudinal bars with the design drawings is crucial for reducing the placing error. For this reason, the following are some models of high-precision laser measurement tools and their sources:

[0044] Trimble SX10 scanning total station, which integrates the functions of a total station and 3D scanning, can perform high-precision measurement and three-dimensional modeling. In terms of the digital positioning system, the virtual reference station technology is a commonly used high-precision positioning method.

[0045] The mechanical device mainly consists of five core devices:

[0046] Multi-functional mechanical clamping device: The front end is equipped with an electrically adjustable jaw, and the inside of the jaw is lined with a wear-resistant rubber layer to prevent the steel bars from being damaged;

[0047] Roller conveying and guiding device: It consists of low-friction rubber rollers and adjustable guide rails. The spacing between the rollers can be adjusted to adapt to steel bars of different specifications;

[0048] Multi - point laser positioning device: The laser aligner is installed at both ends of the steel bar bracket to form a multi - point laser grid, ensuring the accuracy of the placement position of the steel bars;

[0049] Flexible limit buffer device: It consists of an elastic limit clamp and a flexible buffer layer;

[0050] Electric fine - tuning alignment mechanism: It consists of a stepper motor and a ball screw, and can achieve fine - tuning at the 0.1mm level.

[0051] The specific model of the laser scanning device is FARO FocusS 350.

[0052] Optionally, the arrangement of the longitudinal steel bars is carried out in sections. After each section is arranged, the laser scanning system is immediately used for detection to accurately confirm the position and angle of each section of the longitudinal steel bars. The image recognition system is used to adjust the deviation in real - time. The steel bar bracket is an adjustable steel bar bracket, and its adjustment range can cover box girders of different specifications. This adjustable steel bar bracket uses high - strength steel and is coated with an anti - corrosion layer. During the actual implementation process, the sectional arrangement method is adopted. After each section of the longitudinal steel bars is arranged, the laser scanning system is immediately used for precise detection. The laser scanning system can accurately confirm the position and angle of each section of the longitudinal steel bars to ensure that they meet the design requirements. By using the image recognition system to monitor and analyze the installation of the steel bars in real - time, any deviation can be automatically identified and adjusted to ensure that the error remains within the allowable tolerance range. This process greatly improves the accuracy and consistency of the longitudinal steel bar placement, while reducing the possible deviation during the construction process, effectively improving the construction quality and efficiency. Through this sectional arrangement and real - time feedback mechanism, the high accuracy and controllability of the entire placement process are ensured, ensuring that the construction meets strict design specifications. The adjustable steel bar bracket has high flexibility and can automatically adjust the position of the bracket according to box girders of different specifications to ensure that each longitudinal steel bar can be accurately positioned and firmly supported. This bracket is made of high - strength steel and coated with an anti - corrosion layer, with excellent corrosion resistance and wear resistance, and can maintain stable performance during the long - term construction process, reducing the need for frequent replacement and maintenance, enhancing the safety and stability of the construction. In addition, the adjustable design of the bracket enables it to adapt to box girders of various different sizes and specifications, increasing the applicability of the equipment, further improving the construction efficiency and quality, and ensuring that the longitudinal steel bars of each box girder can be accurately arranged, thus ensuring the high efficiency and controllability of the entire construction process.

[0053] Optionally, the automatic tying device adopts a multi-axis robotic arm structure. This automatic tying device can precisely control the position and strength of tying, and is equipped with built-in sensors to monitor the tying accuracy in real time. After tying is completed, the system automatically feeds back the results and conducts quality assessment. The placement and tying process of steel bars is dynamically monitored in real time through a laser positioning system. The laser system is linked with the numerical control system, which can real-time feedback the minor deviation of the longitudinal bar position and automatically adjust the arrangement of steel bars. In the actual implementation process, the automatic tying device adopts a multi-axis robotic arm structure, combined with a high-precision tension sensor and an intelligent tying actuator, to achieve a precise steel bar tying process. The robotic arm is driven by a servo motor to control the movement trajectory of the clamping and tying device, ensuring the accurate positioning of the tying points. At the same time, a torque sensor is installed to monitor the tying strength in real time and automatically adjust the tightness of the steel wire to prevent problems such as being too tight or too loose. After tying is completed, the device uses a quality inspection module to recheck the tied parts, generates an inspection report in combination with the feedback control system, identifies possible deviations and automatically compensates and corrects them. The specific model of the multi-axis robotic arm structure is RM75-6F, and the quality inspection module is a laser displacement sensor, which is suitable for detecting the quality of the tied parts.

[0054] Optionally, the steel bar limiting fixture is adjusted using an electric fine-tuning structure, and millimeter-level spacing fine-tuning is carried out through a lead screw transmission mechanism. The steel bar limiting fixture can be adjusted with a built-in high-precision ball bearing, and multiple longitudinal bars can be fine-tuned simultaneously. Additionally, it can be combined with a laser distance sensor to provide real-time spacing feedback to guide the adjustment of the steel bar limiting fixture. In the actual implementation process, millimeter-level spacing fine-tuning is achieved through a high-precision lead screw transmission mechanism to ensure that the arrangement of longitudinal bars meets the design requirements. High-precision ball bearings are embedded inside the fixture, which can reduce friction, improve the adjustment stability, and support the synchronous fine-tuning of multiple steel bars to ensure that the overall arrangement is neat and consistent. In addition, the fixture is equipped with a laser distance sensor to monitor the spacing deviation between steel bars in real time and provide accurate feedback data to guide the fixture for automatic adjustment to eliminate construction errors. The fixture also integrates a flexible buffer module to reduce the mechanical impact on the steel bars during the adjustment process and avoid deformation or position deviation of the steel bars caused by excessive clamping. This device is designed modularly and can be adapted to different specifications of steel bars and box girder structures, ensuring construction accuracy while improving the adjustment efficiency and construction convenience.

[0055] Optionally, the adaptive anti-vibration fixing fixture adopts a double-layer elastic buffer structure, uses high-strength alloy springs and shape memory alloys to buffer and reinforce the steel bars, can automatically adjust the clamping force according to the vibration frequency, and through an electric locking device, enables the adaptive anti-vibration fixing fixture to automatically expand and increase the clamping area after the steel bars are fixed. The contact surface of the adaptive anti-vibration fixing fixture is covered with a flexible buffer coating, and the specific material of the flexible buffer coating is polyurethane elastomer PU. In the actual implementation process, the adaptive anti-vibration fixing fixture adopts a double-layer elastic buffer structure, combines high-strength alloy springs and shape memory alloys to ensure dynamic buffering and stable support when the steel bars are affected by external forces or construction vibrations. This fixture has an intelligent anti-vibration adjustment function, can automatically adjust the clamping force according to the change of vibration frequency, ensure that the steel bars remain stable under different working conditions, and avoid displacement or loosening caused by minor vibrations. In addition, the fixture is equipped with an electric locking device, which can automatically expand the clamping area after the steel bars are fixed, improve the overall fixing strength, and enhance the stability during the construction process. The contact surface of the fixture is covered with a flexible buffer coating of polyurethane elastomer (PU), which has the characteristics of high elasticity, strong wear resistance, and excellent impact resistance, can effectively absorb the impact force generated during the construction process, reduce the surface damage of the steel bars, and improve the durability and adaptability of the fixture.

[0056] Optionally, during the steel bar installation process, after each section of longitudinal steel bars is arranged, the operator immediately checks the position of the longitudinal steel bars using a digital measuring tool, and also uses a holographic projection device to further confirm the accurate position of each longitudinal steel bar during the measurement process. In the actual implementation process, during the steel bar installation process, after each section of longitudinal steel bars is arranged, the operator immediately checks the position of the longitudinal steel bars using a digital measuring tool to ensure that the matching degree between the position of the steel bars and the design drawing is not less than 99.99%. This measuring tool can accurately measure every detail of the longitudinal steel bars, timely detect and correct deviations, and ensure the accuracy requirements during the construction process. In addition, it should be noted that the digital measuring tool is a device and system that uses modern digital technology to perform high-precision measurement and data collection on the construction site, such as total stations and digital levels, and holographic projection devices.

[0057] Optionally, the installation process of each steel bar is equipped with an automated feedback system. Through this system, the precise position of each steel bar can be monitored in real time and automatically adjusted. The system can immediately issue a warning and make an automatic correction when there is a slight deviation in the steel bar, ensuring that the accuracy of the steel bar layout reaches the millimeter level. During the actual implementation process, during the installation process, the system continuously tracks every detail of the steel bar. Once a slight deviation in the position of the steel bar is detected, the system will immediately issue a warning and make an automatic correction to ensure that the position of the steel bar meets the design requirements. Through this automated feedback mechanism, any deviation can be responded to in real time during the construction process, thus avoiding the lag of manual inspection, improving the construction accuracy, and ensuring that the layout accuracy of the longitudinal bars always meets strict design standards and construction specifications. The automated feedback system is a technology widely used in industry for real-time monitoring, recording, and feedback of the execution of various processes or tasks to ensure that the system operates as expected and deviations are corrected in a timely manner. Through sensors and data acquisition devices, the operating status and environmental parameters of the system are continuously obtained, and the collected data is analyzed to identify anomalies or trends.

[0058] Optionally, after the steel bar placement is completed, the installation positions, binding quality, and steel bar spacing of all longitudinal bars are comprehensively detected by a 3D scanner, and a report is generated by the system for convenient later review and quality inspection. The system can also be linked with the construction management platform to achieve real-time data sharing and ensure the accuracy of each piece of data. During the actual implementation process, after the steel bar placement is completed, the installation positions, binding quality, and steel bar spacing of all longitudinal bars are comprehensively detected by a 3D scanner. The 3D scanner can accurately capture the spatial position and geometric shape of the longitudinal bars, comprehensively check whether the steel bar layout meets the design requirements, and conduct a detailed assessment of the binding quality. Through the report generated by the system, construction personnel can conveniently conduct later review and quality inspection to ensure that the construction process meets the specified standards and specifications. The system can also be linked with the construction management platform to achieve real-time data sharing, facilitating project managers to monitor and analyze the construction progress and quality in real time. This integrated data management system not only improves the construction efficiency but also enhances the transparency of quality control, ensures the accuracy of each piece of data, enhances the traceability of the project and the precision of management, thus effectively improving the construction quality and the overall reliability of the project.

[0059] Optionally, a longitudinal bar placement device for high-speed railway box girders, which is applied to the longitudinal bar placement method for girders according to any one of claims 1-8, includes:

[0060] A precise positioning device, which combines a laser rangefinder, an infrared sensor, and visual recognition technology to achieve precise positioning of the longitudinal bars, can adjust the position of the longitudinal bars in real time, and ensure that the steel bar layout accuracy meets the design requirements;

[0061] The automatic steel bar bracket installation device can automatically adjust the installation position of the bracket according to the beam bodies of different specifications, and during the bracket installation process, automated operations are carried out through the robotic arm, reducing manual intervention and improving the installation efficiency;

[0062] The laser scanning device can scan the entire longitudinal bar layout area, generate a real-time three-dimensional image, and verify and adjust the layout accuracy of the longitudinal bars. In the actual implementation process, the precise positioning device combines a laser rangefinder, an infrared sensor, and vision recognition technology to achieve precise positioning of the longitudinal bars. Through the collaborative work of these technologies, it can monitor the position of the longitudinal bars in real time and make fine adjustments to ensure that the steel bars are always in the precise position designed during the layout process. In addition, this device can automatically feedback any deviation during the longitudinal bar placing process and immediately make adjustments to ensure that the error during the placing process is controlled within the allowable tolerance range, thus greatly improving the construction accuracy and efficiency;

[0063] The automatic steel bar bracket installation device can automatically adjust the installation position of the bracket according to the beam bodies of different specifications, with high adaptability and flexibility. During the bracket installation process, the installation task is completed through the automated operation of the robotic arm, greatly reducing manual intervention, improving the installation efficiency and accuracy. The bracket is made of high-strength and corrosion-resistant materials to ensure stability and durability during long-term use, further enhancing the safety of the construction process;

[0064] The laser scanning device can scan the entire longitudinal bar layout area and generate a real-time three-dimensional image to comprehensively monitor the layout accuracy of the longitudinal bars. Through laser scanning, it can verify in real time whether the installation position, angle, and spacing of the steel bars meet the design requirements. The laser scanning device is not only used for accuracy detection but can also adjust the layout of the longitudinal bars in real time according to the scanning results to ensure the precise placement of each steel bar. The high efficiency of this device is also reflected in its ability to automatically generate a detailed three-dimensional scanning report and provide data support for the subsequent construction review. In addition, the scanning system is linked with other devices to achieve full-process data tracking and recording, improving the transparency and traceability of the construction process and ensuring the continuous guarantee of project quality.

[0065] Optionally, the laser scanning device can detect and adjust any deviation in the longitudinal reinforcement arrangement in real time, adjust the working parameters of the device in real time through an automatic feedback function, ensure that the longitudinal reinforcement arrangement meets the design standards, and can generate a detailed scanning report for subsequent review and quality control by construction management personnel. During the actual implementation process, the laser scanning device can detect and adjust any deviation in the longitudinal reinforcement arrangement. The device uses high-precision laser technology to quickly scan the entire longitudinal reinforcement arrangement area, detect the difference between the actual position of the longitudinal reinforcement and the design drawing, and through the automatic feedback function, the system can adjust the working parameters of the device in real time and automatically correct the minor deviations in the longitudinal reinforcement arrangement to ensure that the position, angle, and spacing of each longitudinal reinforcement always meet the design standards and construction specifications.

[0066] To more clearly demonstrate the implementation process and key technologies of the longitudinal reinforcement cloth laying method and device for high-speed railway box girders, we break down this method into multiple specific steps and detail the technical means and implementation results used in each step. The following table summarizes the main technical links and implementation effects of this process, which can help us systematically understand how each link ensures construction accuracy, improves efficiency, and enhances the overall project quality:

[0067]

[0068]

[0069] The above shows and describes the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. Machinery, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0070] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformation made using the content of the specification and drawings of the present invention, directly or indirectly applied in related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A method for laying longitudinal reinforcement for a high-speed railway box girder, characterized in that: The following steps are involved: S1: At the preset position of the box girder template, the longitudinal reinforcement reference line is set by high-precision laser measurement tools and digital positioning systems to ensure that the initial position of the longitudinal reinforcement is accurately aligned with the design drawing, thereby minimizing the laying error; S2: Arrange the longitudinal reinforcement in order according to the design drawings. Select the appropriate diameter and strength of each longitudinal reinforcement according to the load requirements to ensure that the length, quantity and spacing of the reinforcement fully meet the design specifications and construction requirements; S3: A steel bar bracket is installed at a predetermined position of each longitudinal bar. The steel bar bracket is designed to be adjustable and can automatically adjust the bracket position according to box girders of different sizes. The bracket is made of corrosion-resistant and high-temperature-resistant high-strength steel; S4: The longitudinal reinforcement is accurately placed on the bracket, and mechanical devices are used to assist in positioning, with positioning accuracy reaching the millimeter level. The position of the reinforcement is monitored in real time through sensors and visual recognition systems to ensure that the longitudinal reinforcement is fully in place; S5: The longitudinal reinforcement is fixed by fully automated tying equipment. During the tying process, the tension of each longitudinal reinforcement is detected by the built-in sensor, and the tying force is automatically adjusted; S6: After the binding is completed, the arrangement of the longitudinal reinforcement is accurately checked using laser scanning equipment. The scanning system can automatically identify the installation position and angle of the longitudinal reinforcement and output a scanning report; S7: Fine-tune the steel bar and use the adjustable steel bar limit clamp for secondary fine-tuning; S8: After the reinforcement is arranged, the reinforcement is stabilized using an adaptive anti-vibration fixture.

2. The method for laying longitudinal reinforcement for high-speed railway box beams according to claim 1, characterized in that: The longitudinal reinforcement is arranged in sections. After each section is arranged, it is immediately inspected using a laser scanning system to accurately confirm the position and angle of each section of the longitudinal reinforcement. The image recognition system is used to adjust the deviation in real time. The steel bar bracket adopts an adjustable steel bar bracket, and its adjustment range can cover box girders of different specifications. The adjustable steel bar bracket uses a high-strength frame, high-strength steel, and is coated with an anti-corrosion layer.

3. The method for laying longitudinal reinforcement for high-speed railway box beams according to claim 1, characterized in that: The automated binding device adopts a multi-axis robotic arm structure, which can accurately control the binding position and strength, and has built-in sensors to monitor the accuracy of binding in real time. After the binding is completed, the system automatically feeds back the results and performs quality assessment. The placement and binding process of the steel bars is dynamically monitored in real time through a laser positioning system. The laser system and the CNC system are linked to provide real-time feedback on slight deviations in the position of the longitudinal bars and automatically adjust the layout of the steel bars.

4. The method for laying longitudinal reinforcement for high-speed railway box beams according to claim 1, characterized in that: The adjustable steel bar limit clamp adopts an electric fine-tuning structure and performs millimeter-level spacing fine-tuning through a screw transmission mechanism. The adjustable steel bar limit clamp has a built-in high-precision ball bearing, which can fine-tune multiple longitudinal bars at the same time, and can be combined with a laser ranging sensor to provide real-time spacing feedback to guide the adjustment of the adjustable steel bar limit clamp.

5. The method for laying longitudinal reinforcement for high-speed railway box beam according to claim 1, characterized in that: The adaptive anti-vibration fixing clamp adopts a double-layer elastic buffer structure and uses high-strength alloy springs and shape memory alloys to buffer and reinforce the steel bars. It can automatically adjust the clamping force according to the vibration frequency. Through the electric locking device, the adaptive anti-vibration fixing clamp can automatically expand to increase the clamping area after the steel bars are fixed. The contact surface of the adaptive anti-vibration fixing clamp is covered with a flexible buffer coating, and the specific material of the flexible buffer coating is polyurethane elastomer PU.

6. The method for laying longitudinal reinforcement for high-speed railway box beams according to claim 1, characterized in that: During the steel bar installation process, operators use digital measuring tools to immediately review the position of the longitudinal reinforcement after each section of longitudinal reinforcement is arranged. During the measurement process, holographic projection equipment is also used to further confirm the exact position of each longitudinal reinforcement.

7. The method for laying longitudinal reinforcement for high-speed railway box beams according to claim 1, characterized in that: The installation process of each steel bar is equipped with an automated feedback system, which can monitor the precise position of each steel bar in real time and automatically adjust it. The system can immediately issue a warning and make automatic corrections when there is a slight deviation in the steel bar.

8. The method for laying longitudinal reinforcement for high-speed railway box beams according to claim 1, characterized in that: After the reinforcement is laid, the installation position, binding quality and spacing of all longitudinal reinforcements are fully inspected using a 3D scanner, and a report is generated through the system to facilitate subsequent review and quality inspection. The system can also be linked with the construction management platform to achieve real-time data sharing.

9. Longitudinal reinforcement laying device for high-speed railway box beam, characterized by: The beam longitudinal reinforcement laying method applied to any one of claims 1 to 8 comprises: The precise positioning device uses a combination of laser rangefinder, infrared sensor and visual recognition technology to achieve precise positioning of the longitudinal reinforcement and can adjust the position of the longitudinal reinforcement in real time; The automated steel bar bracket installation device can automatically adjust the bracket installation position according to beams of different specifications, and the bracket installation process is automatically operated by a robotic arm; Laser scanning device: The laser scanning device can scan the entire longitudinal reinforcement layout area, generate real-time three-dimensional images, and verify and adjust the layout accuracy of the longitudinal reinforcement.

10. The high-speed railway box girder longitudinal reinforcement laying device according to claim 9, characterized in that: The laser scanning device can detect and adjust any deviations in the longitudinal reinforcement arrangement in real time, adjust the equipment operating parameters in real time through the automatic feedback function, and generate detailed scanning reports for subsequent review and quality control by construction management personnel.

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