Assembly type high-altitude special-shaped beam sleeve connection construction method

Abstract

The invention discloses an assembly type high-altitude special-shaped beam sleeve connection construction method. According to the invention, the precise monitoring of the sensor module ensures the construction quality and the structure safety. The torque sensor can accurately control the pre-tightening force of each fastener by measuring the torque value of the fastener in the screwing process, and the situation that connection is not firm due to insufficient torque or the fastener is damaged due to excessive torque is avoided. And due to the use of the position sensor and the high-precision measurement technology, the accuracy of connection between the sleeve and the special-shaped beam is ensured, the installation error is reduced, and the construction precision is improved. The strain sensor and the temperature sensor are matched for use, the strain condition and the temperature change in the connecting process can be monitored in real time, and the data are crucial for preventing the performance change of the material caused by the temperature change or the damage caused by excessive strain. The monitoring system can find potential problems in time and take measures, thereby ensuring long-term stability and reliability of the structure.

Description

Technical Field

[0001] The invention belongs to the technical field of special-shaped beam construction, and specifically relates to a sleeve connection construction method for assembled high-altitude special-shaped beams. Background Art

[0002] The connection between special-shaped beams and sleeves is a common connection method in building structures, mainly used to achieve effective connections between beams and columns, and between beams. Special-shaped beams refer to beams with non-standard rectangular or I-shaped cross-sections, and sleeves are metal or concrete components used to connect different components. In the fields of modern architecture and civil engineering, the reliability and accuracy of structural connections are key factors in ensuring project quality and safety. Especially in the construction process involving the connection between special-shaped beams and sleeves, traditional methods often rely on manual operations and simple tools, which leads to low construction efficiency, insufficient precision and potential safety risks.

[0003] The traditional method of connecting special-shaped beams and sleeves usually includes the following steps: site investigation, material preparation, installation, tightening, anti-corrosion treatment and acceptance. However, there are many technical defects in these steps. First, it is difficult to ensure that the torque of each fastener reaches the predetermined standard during manual operation, resulting in the reliability of the connection cannot be effectively guaranteed. Secondly, due to the lack of accurate monitoring means, position errors during the installation process are difficult to avoid, affecting the overall performance of the structure. In addition, traditional anti-corrosion treatment and sealing methods are often limited by environmental conditions and construction technology, and it is difficult to achieve long-term protection effects. Summary of the invention

[0004] The purpose of the present invention is to provide a method for connecting sleeves of assembled high-altitude special-shaped beams in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the present invention is as follows: a method for connecting sleeves of assembled high-altitude special-shaped beams, the method comprising the following steps:

[0006] S1: Determine the construction site and construction environment, conduct on-site investigation, prepare various materials and equipment required for construction, including special-shaped beams, sleeves, connectors, fasteners, measuring tools, and safety equipment;

[0007] S2: Complete the detailed design of special-shaped beams and sleeves according to the building structure and design requirements. Develop a construction plan, including construction process, staffing, and safety measures;

[0008] S3: Prefabricate special-shaped beams and sleeves in the factory to ensure accurate dimensions and standard materials. Number the prefabricated parts for quick identification and installation on site;

[0009] S4: Transport the prefabricated special-shaped beams and sleeves to the construction site. Use appropriate lifting equipment to ensure the safety and stability of the materials during transportation;

[0010] S5: Clean and reinforce the aerial work platform to ensure that the platform's load-bearing capacity meets construction requirements. Install temporary support and protection facilities to ensure construction safety;

[0011] S6: Use lifting equipment to lift the special-shaped beam to the predetermined position. Accurately position the special-shaped beam to ensure that its position and angle meet the design requirements;

[0012] S7: Connect the sleeve to the corresponding part of the special-shaped beam. Use fasteners to fix the sleeve to the special-shaped beam to ensure a firm connection. During the connection process, set up a real-time monitoring and feedback system. The smart sleeve uses sensors to monitor the connection status in real time, including the torque of the fasteners, the relative position of the sleeve and the beam, and other data. These data are transmitted wirelessly to the ground control center, and construction personnel can monitor the connection process in real time and make necessary adjustments based on the feedback data;

[0013] S8: Check the connection quality between the special-shaped beam and the sleeve to ensure there is no looseness, misalignment, etc. Use measuring tools to verify the position and angle of the special-shaped beam to ensure that it meets the design standards;

[0014] S9: Provide safety protection for installed special-shaped beams and sleeves to prevent damage during construction. Check and maintain the safety protection facilities of the aerial work platform;

[0015] S10: Carry out necessary load tests on the connected special-shaped beams to ensure that their bearing capacity meets the design requirements. Record test data, analyze test results, and ensure construction quality;

[0016] S11: After completing all construction steps, conduct a comprehensive project acceptance, confirm that all construction quality meets the design and specification requirements, go through the acceptance procedures, and deliver for use.

[0017] In a preferred embodiment, in step S1, the geographical coordinates of the construction site are recorded by a GPS positioning system, the soil type and groundwater level are determined by geological exploration technology, and the wind force level during construction is obtained through meteorological station data. For materials and equipment, the parameters of the special-shaped beam are set to 10 meters in length, 0.5 meters in width, and 0.8 meters in height. Q345 steel is used, and its tensile strength is 470MPa, compressive strength is 345MPa, and elastic modulus is 210GPa. The sleeve is made of 42CrMo steel, with an inner diameter of 0.6 meters, an outer diameter of 0.7 meters, a wall thickness of 20mm, and galvanized. Connectors and fasteners use 8.8-grade high-strength bolts with a diameter of 24mm, a length of 120mm, and a preload torque of 600N·m. The measuring tools include a laser rangefinder and an angle measuring instrument with an accuracy of ±1mm, and the safety equipment meets the relevant national standards.

[0018] In a preferred embodiment, in step S2, the design load of the special-shaped beam is 1000kN, the prestress loss rate is controlled within 5%, the deflection is limited to L / 500, and the crack width is limited to 0.2mm. The sleeve connection method is bolt connection, the embedded part specification is M24, and the reserved hole size is φ30mm. In the construction plan, the construction process is divided into eight stages, and the work content, sequence and time of each stage are planned in detail. The staffing includes 1 project manager, 2 technical leaders, 3 safety officers and 20 construction workers. In terms of safety measures, the safety distance of the construction site is set at 2 meters, and warning signs are set every 20 meters. The emergency plan includes the handling procedures for emergency situations such as fire, electric shock and falling from height.

[0019] In a preferred embodiment, in step S3, the dimensional accuracy of the prefabricated mold of the special-shaped beam is controlled within ±1mm, the concrete pouring adopts the layered pouring method, the curing time is 28 days, and the demoulding strength is not less than 28MPa. The sleeve processing equipment has an accuracy of ±0.1mm, the heat treatment process ensures that the material hardness is between HB240-280, the surface treatment adopts the galvanizing process, and the finished product inspection standard is implemented according to GB / T 3098.1-2010.

[0020] In step S4, the lifting equipment uses a truck crane with a rated lifting capacity of 50 tons, a working radius of 15 meters, and a lifting speed controlled within 0.5m / s. The transport vehicle uses a flatbed trailer with a load capacity of 30 tons and a compartment size of 12 meters × 2.5 meters × 1.5 meters. The transport route has been surveyed in advance, and the estimated driving time is 2 hours. The road conditions are good, and there are no height and width restrictions along the way.

[0021] In a preferred embodiment, in step S5, temporary supports are steel pipe supports with a spacing of 2 meters and an adjustable height according to construction requirements. In terms of protective facilities, the density of the safety net is no more than 200 meshes per square meter, the scaffolding erection standard is implemented in accordance with JGJ 130-2011, and the height of the guardrail is set at 1.2 meters.

[0022] In step S6, during the hoisting and positioning stage of the special-shaped beam, the sling angle is controlled between 45° and 60° to avoid damage to the special-shaped beam. The hoisting speed is accurately controlled within 0.5m / s, and the plane position and elevation are accurately measured using a total station to ensure that the plane position error is within ±5mm and the elevation error is within ±10mm.

[0023] In a preferred embodiment, in step S7, the real-time monitoring and feedback system includes: a sensor module, a data acquisition and processing module, a wireless transmission module, a ground control center module and a feedback control module;

[0024] The internal configuration of the sensor module includes:

[0025] Torque sensor: used to measure the torque value of fasteners during the tightening process to ensure that each fastener reaches the predetermined torque standard.

[0026] Position sensor: Through high-precision measurement technology, the relative position of the sleeve and the special-shaped beam is monitored to ensure the accuracy of the connection.

[0027] Strain sensor: Installed at key locations on the sleeve to monitor strain during the connection process and prevent excessive deformation or damage.

[0028] Temperature Sensors: Monitor temperature changes in the joint area, as temperature may affect material properties and fastener performance.

[0029] The internal settings of the data acquisition and processing module are:

[0030] Data acquisition unit: collects data from various sensors and converts them into digital signals.

[0031] Microprocessor: Processes the collected data and executes preset algorithms to analyze the connection status, such as whether the torque meets the standard and whether the position is correct.

[0032] Storage unit: temporarily stores the collected data for subsequent analysis and recording;

[0033] The internal settings of the wireless transmission module are:

[0034] Wireless communication unit: sends the processed data to the ground control center via Wi-Fi, LoRa or Bluetooth wireless signals.

[0035] Antenna: used to send and receive wireless signals to ensure the stability and reliability of data transmission.

[0036] The internal settings of the ground control center module are:

[0037] Receiving and display unit: Receives data from the smart sleeve and displays it intuitively to construction workers through the display screen.

[0038] Data analysis software: further analyze the received data, such as generating connection status reports, historical data comparison, etc.

[0039] Alarm system: When abnormal data is detected, the system will automatically trigger an alarm to remind construction personnel to conduct inspections or interventions.

[0040] The internal settings of the feedback control module are:

[0041] Actuator: According to the instructions from the ground control center, make necessary adjustments to the connection process, such as fine-tuning the sleeve position or re-tightening the fasteners.

[0042] Feedback adjustment unit: responsible for receiving feedback information from the actuator, forming a closed-loop control system, and ensuring that the adjustment measures are accurately implemented.

[0043] In a preferred embodiment, in step S8, the fastener is retested using a torque tester to ensure that the torque error is within ±5%. The connection part is non-destructively tested using an ultrasonic flaw detector to check whether there are cracks. The position and angle are retested using a laser leveler and an electronic theodolite to ensure construction accuracy.

[0044] In a preferred embodiment, in step S9, the protective material is a fire-retardant coating with a coating thickness of 0.2 mm, and the construction method complies with the coating construction specification. In terms of protective facilities, the safety warning sign has a size of 600 mm × 400 mm, a striking red color, and is set in a dangerous location. The maintenance cycle is set as a regular inspection once a week, and if any problem is found, it is replaced immediately.

[0045] In a preferred embodiment, in step S11, the acceptance record includes a construction log, an acceptance report and a rectification record, and all records must be detailed and complete. During the acceptance process, the connection nodes, structural integrity, appearance quality, and safety protection measures of the special-shaped beams are comprehensively inspected, and various data during the construction process are reviewed, including load test reports, construction drawings, material inspection reports, etc.

[0046] In a preferred embodiment, in step S10, the test load is 1.2 times the design load, i.e., 1200 kN. The test equipment includes a load sensor, a data acquisition device, and a loading device. The test results need to record the deformation, stress distribution, and stability performance to ensure that all data are within the design allowable range.

[0047] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0048] 1. In the present invention, precise monitoring of the sensor module ensures construction quality and structural safety. The torque sensor can accurately control the preload of each fastener by measuring the torque value of the fastener during the tightening process, thereby avoiding loose connections due to insufficient torque or damage to the fasteners due to excessive torque. The use of the position sensor ensures the accuracy of the connection between the sleeve and the special-shaped beam through high-precision measurement technology, reduces installation errors, and improves construction accuracy. The combined use of strain sensors and temperature sensors can monitor the strain conditions and temperature changes during the connection process in real time. These data are crucial for preventing performance changes of materials caused by temperature changes or damage caused by excessive strain. Such a monitoring system can detect potential problems in a timely manner and take measures to ensure the long-term stability and reliability of the structure.

[0049] 2. In the present invention, the integration of data acquisition and processing modules improves the intelligence level of the construction process. The data acquisition unit converts the analog signals collected by the sensor into digital signals, and the microprocessor processes these digital signals and executes the preset algorithm to analyze the connection status, ensuring that every link in the construction process meets the design requirements. The setting of the storage unit enables all collected data to be saved, which is convenient for subsequent quality tracing and engineering analysis. This data-driven construction management method not only improves construction efficiency, but also enhances the transparency and traceability of the construction process.

[0050] 3. In the present invention, the data receiving and display unit, data analysis software and alarm system of the ground control center module provide a centralized monitoring platform for construction personnel. Through this platform, construction personnel can intuitively understand the real-time situation of the construction site, and the data analysis software can conduct in-depth analysis of the data, generate detailed reports, and help construction personnel make more scientific decisions. The setting of the alarm system enables any abnormal situation to be discovered and handled in a timely manner, greatly improving construction safety. The actuator and feedback adjustment unit of the feedback control module form a closed-loop control system. This system can automatically fine-tune the connection process according to the instructions of the ground control center to ensure that the adjustment measures are accurately implemented. This automated feedback control mechanism not only improves construction accuracy, but also reduces human errors, and improves the automation level of the construction process and the overall construction quality. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0052] A method for connecting sleeves of assembled high-altitude special-shaped beams, the method comprising the following steps:

[0053] S1: Determine the construction site and construction environment, conduct on-site investigation, prepare various materials and equipment required for construction, including special-shaped beams, sleeves, connectors, fasteners, measuring tools, and safety equipment;

[0054] S2: Complete the detailed design of special-shaped beams and sleeves according to the building structure and design requirements. Develop a construction plan, including construction process, staffing, and safety measures;

[0055] S3: Prefabricate special-shaped beams and sleeves in the factory to ensure accurate dimensions and standard materials. Number the prefabricated parts for quick identification and installation on site;

[0056] S4: Transport the prefabricated special-shaped beams and sleeves to the construction site. Use appropriate lifting equipment to ensure the safety and stability of the materials during transportation;

[0057] S5: Clean and reinforce the aerial work platform to ensure that the platform's load-bearing capacity meets construction requirements. Install temporary support and protection facilities to ensure construction safety;

[0058] S6: Use lifting equipment to lift the special-shaped beam to the predetermined position. Accurately position the special-shaped beam to ensure that its position and angle meet the design requirements;

[0059] S7: Connect the sleeve to the corresponding part of the special-shaped beam. Use fasteners to fix the sleeve to the special-shaped beam to ensure a firm connection. During the connection process, set up a real-time monitoring and feedback system. The smart sleeve uses sensors to monitor the connection status in real time, including the torque of the fasteners, the relative position of the sleeve and the beam, and other data. These data are transmitted wirelessly to the ground control center, and construction personnel can monitor the connection process in real time and make necessary adjustments based on the feedback data;

[0060] S8: Check the connection quality between the special-shaped beam and the sleeve to ensure there is no looseness, misalignment, etc. Use measuring tools to verify the position and angle of the special-shaped beam to ensure that it meets the design standards;

[0061] S9: Provide safety protection for installed special-shaped beams and sleeves to prevent damage during construction. Check and maintain the safety protection facilities of the aerial work platform;

[0062] S10: Carry out necessary load tests on the connected special-shaped beams to ensure that their bearing capacity meets the design requirements. Record test data, analyze test results, and ensure construction quality;

[0063] S11: After completing all construction steps, conduct a comprehensive project acceptance, confirm that all construction quality meets the design and specification requirements, go through the acceptance procedures, and deliver for use.

[0064] In step S1, the GPS positioning system is used to record the geographical coordinates of the construction site, the soil type and groundwater level are determined using geological exploration technology, and the wind force level during construction is obtained through meteorological station data. For materials and equipment, the parameters of the special-shaped beam are set to 10 meters in length, 0.5 meters in width, and 0.8 meters in height. Q345 steel is used, with a tensile strength of 470MPa, a compressive strength of 345MPa, and an elastic modulus of 210GPa. The sleeve is made of 42CrMo steel, with an inner diameter of 0.6 meters, an outer diameter of 0.7 meters, a wall thickness of 20mm, and is galvanized. Connectors and fasteners use 8.8-grade high-strength bolts with a diameter of 24mm, a length of 120mm, and a preload torque of 600N·m. The measuring tools include a laser rangefinder and an angle measuring instrument with an accuracy of ±1mm, and the safety equipment meets the relevant national standards.

[0065] In step S2, the design load of the special-shaped beam is 1000kN, the prestress loss rate is controlled within 5%, the deflection limit is L / 500, and the crack width limit is 0.2mm. The sleeve connection method is bolt connection, the embedded part specification is M24, and the reserved hole size is φ30mm. In the construction plan, the construction process is divided into eight stages, and the work content, sequence and time of each stage are planned in detail. The staffing includes 1 project manager, 2 technical leaders, 3 safety officers and 20 construction workers. In terms of safety measures, the safety distance of the construction site is set at 2 meters, and warning signs are set every 20 meters. The emergency plan includes the handling procedures for emergency situations such as fire, electric shock and falling from height.

[0066] In step S3, the dimensional accuracy of the prefabricated mold of the special-shaped beam is controlled within ±1mm, the concrete pouring adopts the layered pouring method, the curing time is 28 days, and the demoulding strength is not less than 28MPa. The sleeve processing equipment has an accuracy of ±0.1mm, the heat treatment process ensures that the material hardness is between HB240-280, the surface treatment adopts the galvanizing process, and the finished product inspection standard is implemented according to GB / T 3098.1-2010.

[0067] In step S4, the lifting equipment uses a truck crane with a rated lifting capacity of 50 tons, a working radius of 15 meters, and a lifting speed controlled within 0.5m / s. The transport vehicle uses a flatbed trailer with a load capacity of 30 tons and a compartment size of 12 meters × 2.5 meters × 1.5 meters. The transport route has been surveyed in advance, and the estimated driving time is 2 hours. The road conditions are good, and there are no height and width restrictions along the way.

[0068] In step S5, temporary supports are steel pipe supports with a spacing of 2 meters and an adjustable height according to construction requirements. In terms of protective facilities, the density of the safety net is no more than 200 meshes per square meter, the scaffolding erection standard is implemented in accordance with JGJ 130-2011, and the height of the guardrail is set at 1.2 meters.

[0069] In step S6, during the hoisting and positioning stage of the special-shaped beam, the sling angle is controlled between 45° and 60° to avoid damage to the special-shaped beam. The hoisting speed is accurately controlled within 0.5m / s, and the total station is used to accurately measure the plane position and elevation to ensure that the plane position error is within ±5mm and the elevation error is within ±10mm.

[0070] In step S7, the real-time monitoring and feedback system includes: a sensor module, a data acquisition and processing module, a wireless transmission module, a ground control center module and a feedback control module;

[0071] The internal configuration of the sensor module includes:

[0072] Torque sensor: used to measure the torque value of fasteners during the tightening process to ensure that each fastener reaches the predetermined torque standard.

[0073] Position sensor: Through high-precision measurement technology, the relative position of the sleeve and the special-shaped beam is monitored to ensure the accuracy of the connection.

[0074] Strain sensor: Installed at key locations on the sleeve to monitor strain during the connection process and prevent excessive deformation or damage.

[0075] Temperature Sensors: Monitor temperature changes in the joint area, as temperature may affect material properties and fastener performance.

[0076] The internal settings of the data acquisition and processing module are:

[0077] Data acquisition unit: collects data from various sensors and converts them into digital signals.

[0078] Microprocessor: Processes the collected data and executes preset algorithms to analyze the connection status, such as whether the torque meets the standard and whether the position is correct.

[0079] Storage unit: temporarily stores the collected data for subsequent analysis and recording;

[0080] The internal settings of the wireless transmission module are:

[0081] Wireless communication unit: sends the processed data to the ground control center via Wi-Fi, LoRa or Bluetooth wireless signals.

[0082] Antenna: used to send and receive wireless signals to ensure the stability and reliability of data transmission.

[0083] The internal settings of the ground control center module are:

[0084] Receiving and display unit: Receives data from the smart sleeve and displays it intuitively to construction workers through the display screen.

[0085] Data analysis software: further analyze the received data, such as generating connection status reports, historical data comparison, etc.

[0086] Alarm system: When abnormal data is detected, the system will automatically trigger an alarm to remind construction personnel to conduct inspections or interventions.

[0087] The internal settings of the feedback control module are:

[0088] Actuator: According to the instructions from the ground control center, make necessary adjustments to the connection process, such as fine-tuning the sleeve position or re-tightening the fasteners.

[0089] Feedback adjustment unit: responsible for receiving feedback information from the actuator, forming a closed-loop control system, and ensuring that the adjustment measures are accurately implemented.

[0090] In step S8, the fasteners are retested using a torque tester to ensure that the torque error is within ±5%. The connection parts are non-destructively tested using an ultrasonic flaw detector to check for cracks. The position and angle are retested using a laser leveler and an electronic theodolite to ensure construction accuracy.

[0091] In step S9, the protective material is fire-retardant paint with a coating thickness of 0.2 mm, and the construction method follows the paint construction specification. In terms of protective facilities, the safety warning sign is 600 mm × 400 mm in size and eye-catching red in color, and is set in a dangerous location. The maintenance cycle is set as a regular inspection once a week, and if any problems are found, it will be replaced immediately.

[0092] In step S11, the acceptance records include construction logs, acceptance reports and rectification records, all of which must be detailed and complete. During the acceptance process, the connection nodes, structural integrity, appearance quality, and safety protection measures of the special-shaped beams are comprehensively inspected, and various data during the construction process are reviewed, including load test reports, construction drawings, material inspection reports, etc.

[0093] In step S10, the test load is 1.2 times the design load, i.e., 1200 kN. The test equipment includes a load sensor, a data acquisition device, and a loading device. The test results need to record the deformation, stress distribution, and stability performance to ensure that all data are within the design allowable range.

[0094] In summary, in the present invention, the precise monitoring of the sensor module ensures the construction quality and structural safety. The torque sensor can accurately control the preload force of each fastener by measuring the torque value of the fastener during the tightening process, thereby avoiding loose connections due to insufficient torque or damage to the fasteners due to excessive torque. The use of the position sensor ensures the accuracy of the connection between the sleeve and the special-shaped beam through high-precision measurement technology, reduces installation errors, and improves construction accuracy. The combined use of strain sensors and temperature sensors can monitor the strain conditions and temperature changes during the connection process in real time. These data are crucial for preventing performance changes of materials caused by temperature changes or damage caused by excessive strain. Such a monitoring system can detect potential problems in a timely manner and take measures to ensure the long-term stability and reliability of the structure.

[0095] In the present invention, the integration of data acquisition and processing modules improves the intelligence level of the construction process. The data acquisition unit converts the analog signals collected by the sensor into digital signals, and the microprocessor processes these digital signals and executes the preset algorithm to analyze the connection status, ensuring that every link in the construction process meets the design requirements. The setting of the storage unit enables all collected data to be saved, which is convenient for subsequent quality tracing and engineering analysis. This data-driven construction management method not only improves construction efficiency, but also enhances the transparency and traceability of the construction process.

[0096] In the present invention, the data receiving and display unit, data analysis software and alarm system of the ground control center module provide a centralized monitoring platform for construction personnel. Through this platform, construction personnel can intuitively understand the real-time situation of the construction site, and the data analysis software can conduct in-depth analysis of the data, generate detailed reports, and help construction personnel make more scientific decisions. The setting of the alarm system enables any abnormal situation to be discovered and handled in a timely manner, greatly improving construction safety. The actuator and feedback adjustment unit of the feedback control module form a closed-loop control system. This system can automatically fine-tune the connection process according to the instructions of the ground control center, ensuring that the adjustment measures are accurately implemented. This automated feedback control mechanism not only improves construction accuracy, but also reduces human errors, and improves the automation level of the construction process and the overall construction quality.

[0097] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for connecting sleeves of assembled high-altitude special-shaped beams, characterized in that: The method comprises the following steps: S1: Determine the construction site and construction environment, conduct on-site investigation; prepare various materials and equipment required for construction, including special-shaped beams, sleeves, connectors, fasteners, measuring tools, and safety equipment; S2: Complete the detailed design of special-shaped beams and sleeves according to the building structure and design requirements; formulate a construction plan, including construction process, personnel allocation, and safety measures; S3: Prefabricate special-shaped beams and sleeves in the factory to ensure accurate dimensions and standard materials; number the prefabricated parts for quick identification and installation on site; S4: Transport the prefabricated special-shaped beams and sleeves to the construction site; use appropriate lifting equipment to ensure the safety and stability of the materials during transportation; S5: Clean and reinforce the aerial work platform to ensure that the platform's load-bearing capacity meets the construction requirements; install temporary support and protection facilities to ensure construction safety; S6: Use lifting equipment to lift the special-shaped beam to the predetermined position; accurately position the special-shaped beam to ensure that its position and angle meet the design requirements; S7: Connect the sleeve to the corresponding part of the special-shaped beam; use fasteners to fix the sleeve to the special-shaped beam to ensure a firm connection. During the connection process, set up a real-time monitoring and feedback system. The smart sleeve uses sensors to monitor the connection status in real time, including the torque of the fasteners and the relative position data of the sleeve and the beam. These data are transmitted wirelessly to the ground control center. The construction personnel monitor the connection process in real time and make necessary adjustments based on the feedback data. S8: Check the connection quality between the special-shaped beam and the sleeve to ensure that there is no looseness or misalignment; use measuring tools to verify the position and angle of the special-shaped beam to ensure that it meets the design standards; S9: Provide safety protection for installed special-shaped beams and sleeves to prevent damage during construction; inspect and maintain safety protection facilities of aerial work platforms; S10: Carry out necessary load tests on the connected special-shaped beams to ensure that their bearing capacity meets the design requirements; record the test data, analyze the test results, and ensure the construction quality; S11: After completing all construction steps, conduct a comprehensive project acceptance inspection to confirm that all construction quality meets the design and specification requirements, go through the acceptance procedures, and deliver the project for use.

2. A method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In the step S1, the geographical coordinates of the construction site are recorded by the GPS positioning system, the soil type and groundwater level are determined by geological exploration technology, and the wind force level information during the construction period is obtained through the meteorological station data; for materials and equipment, the parameters of the special-shaped beam are set to a length of 10 meters, a width of 0.5 meters, and a height of 0.8 meters, and Q345 steel is used, with a tensile strength of 470MPa, a compressive strength of 345MPa, and an elastic modulus of 210GPa; the sleeve is made of 42CrMo steel, with an inner diameter of 0.6 meters, an outer diameter of 0.7 meters, a wall thickness of 20mm, and is galvanized; the connectors and fasteners are made of 8.8-grade high-strength bolts with a diameter of 24mm, a length of 120mm, and a preload torque of 600N·m.

3. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In step S2, the design load of the special-shaped beam is 1000kN, the prestress loss rate is controlled within 5%, the deflection limit is L / 500, and the crack width limit is 0.2mm; the sleeve connection method is bolt connection, the embedded part specification is M24, and the reserved hole size is φ30mm.

4. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In the step S3, the dimensional accuracy of the prefabricated mold of the special-shaped beam is controlled within ±1mm, the concrete pouring adopts the layered pouring method, the curing time is 28 days, and the demoulding strength is not less than 28MPa; the sleeve processing equipment accuracy is ±0.1mm, the heat treatment process ensures that the material hardness is between HB240-280, the surface treatment adopts the galvanizing process, and the finished product inspection standard is implemented according to GB / T 3098.1-2010; In step S4, the lifting equipment uses a truck crane with a rated lifting capacity of 50 tons, a working radius of 15 meters, and a lifting speed controlled within 0.5m / s; the transport vehicle uses a flatbed trailer with a load capacity of 30 tons and a compartment size of 12 meters × 2.5 meters × 1.5 meters; the transport route has been surveyed in advance, and the estimated driving time is 2 hours, the road conditions are good, and there are no height and width restrictions along the way.

5. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In step S5, temporary supports are steel pipe supports with a spacing of 2 meters and an adjustable height according to construction requirements; in terms of protective facilities, the density of the safety net is no more than 200 meshes per square meter, the scaffolding erection standard is implemented in accordance with JGJ 130-2011, and the height of the guardrail is set to 1.2 meters; In step S6, during the hoisting and positioning stage of the special-shaped beam, the sling angle is controlled between 45° and 60° to avoid damage to the special-shaped beam; the hoisting speed is accurately controlled within 0.5m / s, and a total station is used to accurately measure the plane position and elevation to ensure that the plane position error is within ±5mm and the elevation error is within ±10mm.

6. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In step S7, the real-time monitoring and feedback system includes: a sensor module, a data acquisition and processing module, a wireless transmission module, a ground control center module and a feedback control module; The internal configuration of the sensor module includes: Torque sensor: used to measure the torque value of fasteners during tightening to ensure that each fastener meets the predetermined torque standard; Position sensor: Through high-precision measurement technology, the relative position of the sleeve and the special-shaped beam is monitored to ensure the accuracy of the connection; Strain sensor: installed at key parts of the sleeve to monitor the strain during the connection process and prevent excessive deformation or damage; Temperature sensors: monitor temperature changes in the joint area, as temperature may affect the properties of the material and the performance of the fastener; The internal settings of the data acquisition and processing module are: Data acquisition unit: collects data from various sensors and converts them into digital signals; Microprocessor: processes the collected data and executes the preset algorithm to analyze the connection status; Storage unit: temporarily stores the collected data for subsequent analysis and recording; The internal settings of the wireless transmission module are: Wireless communication unit: sends the processed data to the ground control center via Wi-Fi, LoRa or Bluetooth wireless signals; Antenna: used to send and receive wireless signals to ensure the stability and reliability of data transmission; The internal settings of the ground control center module are: Receiving and display unit: receives data from the smart sleeve and displays it intuitively to construction workers through the display screen; Data analysis software: further analyzes the received data, including generating connection status reports and historical data comparison; Alarm system: When abnormal data is detected, the system will automatically trigger an alarm to remind construction personnel to conduct inspections or interventions; The internal settings of the feedback control module are: Actuator: According to the instructions of the ground control center, make necessary adjustments to the connection process, including fine-tuning the sleeve position or re-tightening the fasteners; Feedback adjustment unit: responsible for receiving feedback information from the actuator, forming a closed-loop control system, and ensuring that the adjustment measures are accurately implemented.

7. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In step S8, the fasteners are retested using a torque tester to ensure that the torque error is within ±5%; the connection parts are non-destructively tested using an ultrasonic flaw detector to check whether there are cracks; the position and angle are retested using a laser leveler and an electronic theodolite to ensure construction accuracy.

8. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In step S9, fire-retardant coating is used as the protective material, the coating thickness is 0.2 mm, and the construction method complies with the coating construction specifications; in terms of protective facilities, the safety warning sign has a size of 600 mm × 400 mm, a striking red color, and is set in a dangerous position; the maintenance cycle is set as a regular inspection once a week, and it is replaced immediately if any problem is found.

9. The method for connecting sleeves of assembled high-altitude special-shaped beams as claimed in claim 1, characterized in that: In step S10, the test load is 1.2 times the design load, i.e., 1200 kN; the test equipment includes a load sensor, a data acquisition instrument, and a loading device; the test results need to record the deformation, stress distribution, and stability performance to ensure that all data are within the design allowable range.

10. The method for connecting sleeves of assembled high-altitude special-shaped beams according to claim 1, characterized in that: In step S11, the acceptance records include construction logs, acceptance reports and rectification records, and all records must be detailed and complete; during the acceptance process, the connection nodes, structural integrity, appearance quality, and safety protection measures of the special-shaped beams are comprehensively inspected, and various data in the construction process are reviewed, including load test reports, construction drawings, and material inspection reports.