Integrated construction technology of aluminum form climbing scaffold for fabricated building based on BIM technology

Abstract

This invention relates to the field of building construction technology, specifically to an integrated construction process for prefabricated buildings using aluminum formwork and climbing scaffolding based on BIM technology. The process includes the following steps: S1: Utilizing BIM technology to refine the building information model (BIM). This refinement includes the aluminum formwork, climbing scaffolding, prefabricated components, main structure, and electromechanical piping. Collision detection and design optimization are performed using the BIM model. The connection between the climbing scaffolding and the main structure is then reinforced with bolts. Further refinement is given to the aluminum formwork system for the exterior window sill grooves and bathroom curbs. S2: Pre-construction preparations are carried out, including prefabricated component production, customized aluminum formwork processing, and equipment debugging. Prefabricated component production: Based on BIM model data, prefabricated beams, slabs, and columns are produced in a standardized factory to ensure accuracy. This invention utilizes BIM technology to solve the mismatch between traditional climbing scaffolding and industrialized construction, and addresses the issues of low component assembly accuracy and complex construction organization in prefabricated buildings.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to an integrated construction process for prefabricated buildings using aluminum formwork and climbing frames based on BIM technology. Background Technology

[0002] Aluminum alloy formwork (aluminum mold) and attached lifting scaffolding (climbing scaffolding) are the golden combination system for the construction of high-rise / super high-rise concrete structures. Both are factory-made and standardized prefabricated construction tools. The core is to improve efficiency, quality and reduce costs through collaborative design, synchronous construction and process interleaving. They are also the basic construction carriers for prefabricated buildings.

[0003] In the construction system of aluminum formwork and climbing scaffolding, BIM technology is the core technical support for achieving deep collaboration between the two, avoiding conflicts in advance, and enabling full-process digital management and control. It is also the key to upgrading aluminum formwork and climbing scaffolding from simple components to integrated construction. Simply put, BIM can integrate all information about aluminum formwork, climbing scaffolding, and the main building structure into a three-dimensional digital model, enabling pre-design, simulated construction, process control, and data reuse, completely solving the pain points of traditional construction such as drawing conflicts, on-site rework, and chaotic schedules.

[0004] With the rapid development of prefabricated buildings, traditional climbing formwork construction methods are facing new challenges: traditional cast-in-place construction methods, due to their high energy consumption, high pollution, and low efficiency, cannot meet the requirements of sustainable development, while prefabricated buildings, with their standardization and factory production advantages, have become a key focus of policy promotion. Meanwhile, aluminum formwork and climbing formwork technologies can improve construction precision and efficiency, but in traditional construction, the two lack sufficient synergy, leading to resource waste. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated construction process for prefabricated buildings using aluminum formwork climbing scaffolding based on BIM technology. This process can utilize BIM technology to solve the mismatch between traditional climbing scaffolding and industrialized construction, and also solves problems such as low component assembly accuracy and complex construction organization in prefabricated buildings.

[0006] The specific technical solution adopted by this invention is as follows: The integrated construction process of prefabricated building aluminum formwork climbing scaffolding based on BIM technology includes the following steps: S1: Utilize BIM technology to refine the design of the building information model; The detailed design of the building information model includes aluminum formwork, climbing formwork, prefabricated components, main structure and electromechanical piping. Collision detection is carried out through the BIM model to optimize the design. Then, the connection between the climbing formwork and the main structure is reinforced with bolts. The aluminum formwork system for the exterior window sill grooves and bathroom curbs is further refined.

[0007] S2: Carry out pre-construction preparation work, including prefabricated component production, custom aluminum formwork processing, and equipment debugging; Precast component production: Based on BIM model data, precast beams, slabs and columns are produced in a standardized factory to ensure that the accuracy meets the requirements; Custom aluminum mold processing: Based on the detailed BIM drawings, aluminum molds are processed using CNC machine tools to ensure accuracy and reduce the frequency of on-site adjustments; Equipment commissioning: Ensure the installation accuracy of the fully intelligent lifting system of the climbing scaffold and the aluminum formwork, and plan the fully intelligent steel climbing scaffold and self-climbing material platform.

[0008] S3: Intelligent measurement and precise layout are carried out on the construction site. BIM layout robots are used in combination with total stations for on-site positioning, and virtual model data is converted into physical construction benchmarks; millimeter-level precision layout is achieved through three-dimensional coordinate control; S4: Rebar tying and pipeline pre-embedding are carried out on the construction site; Rebar tying is based on BIM model to optimize the three-dimensional rebar layout and collision detection, and generates digital processing drawings to guide CNC equipment to accurately cut materials; During construction, AR layout technology is used to locate the position of the reinforcing bars. The binding sequence and node details can be viewed through a mobile device to ensure that the spacing of the main bars, stirrups and anchorage lengths meet the design requirements.

[0009] Pipeline pre-embedding utilizes BIM model to export pipeline coordinate data, employs laser projection positioning system for precise layout, and intelligent mechanical grooving. During pre-embedding, RFID tags are used to track the position of pipe fittings, and BIM model is used to verify pipeline elevation and direction, ensuring that pipelines are coordinated with the steel reinforcement and aluminum formwork system.

[0010] S5: Optimize the aluminum formwork splicing scheme through BIM technology and perform systematic installation of the aluminum formwork; S51: BIM Model Refinement and Optimization: Before construction, the aluminum formwork system is modeled and designed in 3D based on BIM technology to optimize the aluminum formwork assembly scheme, so that the aluminum formwork, climbing frame, steel bars and embedded pipelines are coordinated. Then, the node structure is adjusted through collision detection to generate a coded component list to guide the factory to process accurately and reduce on-site adjustments. Based on the BIM model data, CNC machine tools are used to process the aluminum molds with high precision, with a dimensional error of ≤±0.5mm. Each aluminum mold is marked with a unique code for rapid on-site identification and assembly. S52: Intelligent Measurement and Laying Out and Reference Positioning: Using a total station and a BIM layout robot, millimeter-level measurements and layouts are performed with an error of ≤1mm. Control lines are then marked on the structural surface to determine the reference position for aluminum formwork installation. S53: Aluminum formwork pre-assembly: Before installation, partial pre-assembly should be carried out to check the flatness of the aluminum formwork, the tightness of the joints, and the matching of the reinforcement components. If any problems are found, they should be adjusted in time. S54: Standardized Installation Procedure Benchmark positioning: Install corner molds and positioning pins to establish a benchmark system; Wall and column formwork: Assemble according to the coding sequence, and use diagonal bracing to fine-tune the verticality; Beam and slab formwork: Install the support system simultaneously and control the camber height; Node treatment: Special connectors are used to reinforce critical areas such as inside and outside corners; S55: Real-time monitoring and fine-tuning During installation, a laser scanner or intelligent monitoring equipment is used to detect the verticality and horizontality of the template in real time, and fine adjustments are made through a hydraulic adjustment system. S56: Climbing Frame Collaboration: The installation of aluminum formwork and the lifting of climbing scaffolds are carried out in a coordinated manner to ensure that there is no conflict between the wall attachments of the climbing scaffolds and the aluminum formwork support system. The lifting path is optimized through BIM simulation. After the installation is completed, 3D scanning technology is used to compare and accept the BIM model. Key data is recorded and archived to form a traceable quality management file.

[0011] S6: Install prefabricated components; S61: BIM Model Refinement and Component Transportation and Stacking Before construction, BIM technology is used to create 3D models and virtual pre-assemble prefabricated components, optimize the hoisting sequence and node connection method of components, and plan the optimal transportation route and on-site stacking area based on the BIM model. Transport vehicles with GPS positioning are used to monitor the transportation status of components in real time. After the components arrive on site, they are classified and stacked according to the installation sequence. Component information is quickly identified by scanning RFID tags to ensure hoisting efficiency. S62: Precise Measurement and Positioning: Using BIM layout robots and total stations for millimeter-level measurement and positioning, component installation control lines are marked on the structural surface. AR technology is used to overlay the virtual model with the actual position to assist construction personnel in accurate positioning, so that the installation accuracy is controlled within ±3mm. S63: Intelligent hoisting operations: Based on the hoisting scheme optimized by the BIM model, an intelligent tower crane with an automatic balancing system is used to hoist the components. During the hoisting process, the attitude of the components is monitored in real time by sensors to ensure that the components are placed smoothly. Temporary supports are set up at important nodes. S64: High-precision installation and adjustment: After the components are in place, a laser tracker and a fine-tuning device are used for precise positioning. The actual installation position is compared with the BIM model, and the fine-tuning device is used for fine-tuning. S65: Node Connection and Reinforcement: Construction is carried out according to the node connection scheme guided by the BIM model, using high-strength bolts or cast-in-place nodes, and using a smart torque wrench to confirm the connection quality. Real-time stress monitoring is performed on important node parts.

[0012] After installation, 3D laser scanning technology is used to conduct real-world measurements and compare them with the BIM model for acceptance. Key quality data is automatically uploaded to the project management platform to form a complete quality traceability archive.

[0013] S7: Concrete pouring and intelligent curing; Before concrete pouring, BIM technology is used to conduct three-dimensional construction simulation to optimize the concrete pouring sequence and pumping path, and to reasonably arrange the pouring points and vibration positions. At the same time, the stress on the aluminum formwork system is simulated to ensure the stability of the aluminum formwork. Then, based on the BIM model, the concrete volume of each part is accurately calculated, and the ERP system of the commercial concrete plant is connected for intelligent batching. GPS-positioned mixer trucks are used to monitor the transportation status in real time, and vehicles are intelligently dispatched in combination with the on-site progress to ensure continuous concrete supply and control slump loss within the allowable range. The system utilizes an intelligent pumping system to automatically adjust pumping pressure and flow rate based on the BIM model. It employs a vibratory rod with sensors to monitor vibration depth and time in real time, with data automatically uploaded to the BIM platform. A visual monitoring system is used for key areas. Immediately after pouring, a laser leveling machine is used for surface treatment. The elevation data in the BIM model guides the construction, ensuring that the flatness error is ≤3mm / 2m. A digital power trowel is used to finish the surface of important nodes.

[0014] An automatic sprinkler system is used to adjust the curing frequency based on monitoring data, and curing measures are dynamically adjusted in conjunction with weather forecasts. For large-volume concrete, an intelligent temperature control system is used to control the internal and external temperature difference to ≤25℃. After the curing period, a rebound hammer or ultrasonic testing digital equipment is used to conduct strength testing. The results are automatically compared with the design requirements in the BIM model to establish a complete electronic curing archive for quality traceability.

[0015] S8: Demolding and scaffolding lifting.

[0016] BIM Formwork Removal: A formwork removal time prediction model is established using BIM technology. Combined with concrete strength monitoring data, the formwork removal time nodes for each part are accurately calculated. A visual animation of the formwork removal sequence is generated to guide on-site operations. Then, an intelligent formwork removal robotic arm is used to operate in the predetermined sequence. The formwork removal force is monitored in real time through a force feedback system. The formwork removal data is uploaded to the BIM management platform in real time. After the removed aluminum formwork is processed by an automatic cleaning device, it is scanned and entered into the BIM inventory management system. The intelligent robotic arm performs damage detection and sorting and stacking for reuse quality. Climbing scaffold lifting: Based on the BIM model, the structural strength of each wall attachment point is checked. Intelligent detection equipment is used to comprehensively inspect the scaffold condition. The lifting conditions are confirmed through a stress monitoring system. An automatic synchronous lifting control system is applied to adjust the lifting speed of each lifting point in real time, with the deviation controlled within ±5mm. The BIM platform monitors the lifting trajectory throughout the process and uses 3D laser scanning to compare with the design model, automatically generating an acceptance report. Key data is stored in the BIM operation and maintenance database. According to the changes in the working surface after lifting, the subsequent construction plan is dynamically adjusted through the BIM platform to ensure seamless connection of various professional processes.

[0017] The technical effects achieved by this invention are as follows: The integrated construction process of aluminum formwork climbing scaffold based on BIM technology for prefabricated buildings in this invention optimizes the timing planning of climbing scaffold and component installation by combining BIM technology to simulate the construction process in advance, realize digital management and control from design, installation to dismantling, and reduce on-site conflicts.

[0018] The BIM-based integrated aluminum formwork climbing scaffolding construction process of this invention optimizes the climbing scaffolding lifting path through BIM simulation, ensuring uniform stress distribution at attachment points, avoiding structural deviations, and resulting in significantly higher overall construction quality compared to the traditional wooden formwork + scaffolding system. This technology, combined with modular construction in prefabricated buildings, reduces high-altitude work time and significantly improves construction efficiency.

[0019] The present invention provides an integrated construction process for prefabricated buildings using aluminum formwork and climbing scaffolding based on BIM technology. This process utilizes BIM technology to simulate construction and identify potential safety hazards in advance, such as collisions during high-altitude operations and scaffolding instability, and formulates countermeasures to significantly improve construction safety and reduce the accident rate.

[0020] The BIM-based integrated construction process for prefabricated aluminum formwork and climbing scaffolding in this invention allows the aluminum formwork to be reused more than 200 times, and the climbing scaffolding can be rotated as a whole, significantly reducing the consumption of timber and steel pipes and lowering construction waste. BIM technology provides accurate quantity calculations, avoiding material waste and meeting green building requirements. Simultaneously, mechanized construction reduces on-site wet work, lowering noise and dust pollution. Attached Figure Description

[0021] Figure 1 This is a flowchart of the present invention; Figure 2 This invention utilizes BIM technology to create design drawings and construction comparison diagrams for pipeline pre-embedding; Where A is the BIM technology pipeline pre-embedded modeling diagram; B is the construction comparison diagram; Figure 3 This invention utilizes BIM technology to create design drawings and construction comparison diagrams for aluminum formwork assembly. Wherein, A is the BIM technology aluminum formwork assembly modeling drawing; B is the construction comparison drawing; Figure 4 This is a construction simulation diagram of concrete pouring using BIM technology, as described in this invention. In this image, A is a rendering of the concrete pouring using BIM technology; B is a rendering of the pouring location modeled using BIM technology. Detailed Implementation

[0022] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention. Example 1:

[0023] Compared to traditional cast-in-place construction methods, which are prone to high energy consumption, high pollution, and low efficiency and thus fail to meet the requirements of sustainable development, this process utilizes BIM technology to perform 3D modeling and detailed design of the aluminum formwork system, optimizes the formwork assembly scheme, and ensures coordination with the climbing scaffold, reinforcing steel, and embedded pipelines. Collision detection is used to adjust node structures, generating a coded component list to guide precise factory processing and reduce on-site adjustments.

[0024] The climbing formwork lifting path was optimized through BIM simulation, ensuring uniform stress at attachment points and preventing structural deviations. The overall construction quality is significantly superior to the traditional timber formwork + scaffolding system. This technology, combined with modular construction in prefabricated buildings, reduces high-altitude work time and significantly improves construction efficiency. BIM technology accurately calculates quantities, avoiding material waste and meeting green building requirements. Simultaneously, mechanized construction reduces on-site wet work, lowering noise and dust pollution.

[0025] like Figures 1-4 As shown, the integrated construction process of prefabricated building aluminum formwork climbing scaffolding based on BIM technology includes the following steps: S1: Utilize BIM technology to refine the design of the building information model; The detailed design of the building information model includes aluminum formwork, climbing formwork, prefabricated components, main structure and electromechanical piping. Collision detection is carried out through the BIM model to optimize the design. Then, the connection between the climbing formwork and the main structure is reinforced with bolts. The aluminum formwork system for the exterior window sill grooves and bathroom curbs is further refined.

[0026] S2: Carry out pre-construction preparation work, including prefabricated component production, custom aluminum formwork processing, and equipment debugging; Precast component production: Based on BIM model data, precast beams, slabs and columns are produced in a standardized factory to ensure that the accuracy meets the requirements; Custom aluminum mold processing: Based on the detailed BIM drawings, aluminum molds are processed using CNC machine tools to ensure accuracy and reduce the frequency of on-site adjustments; Equipment commissioning: Ensure the installation accuracy of the fully intelligent lifting system of the climbing scaffold and the aluminum formwork, and plan the fully intelligent steel climbing scaffold and self-climbing material platform.

[0027] S3: Intelligent measurement and precise layout are carried out on the construction site. BIM layout robots are used in combination with total stations for on-site positioning, and virtual model data is converted into physical construction benchmarks. Millimeter-level precision layout is achieved through three-dimensional coordinate control, providing accurate measurement assurance for aluminum formwork installation. S4: Rebar tying and pipeline pre-embedding are carried out on the construction site; Rebar tying is based on BIM model to optimize the three-dimensional rebar layout and collision detection, and generates digital processing drawings to guide CNC equipment to accurately cut materials; In on-site construction, if there is a long excess of steel bars, they can be cut manually using a cutting machine. However, when steel bars are cut in a centralized manner according to parameters at the factory, fully automated equipment is used for cutting.

[0028] During construction, AR layout technology is used to locate the position of the reinforcing bars. The binding sequence and node details can be viewed through a mobile device to ensure that the spacing of the main bars, stirrups and anchorage lengths meet the design requirements.

[0029] Pipeline pre-embedding utilizes BIM model to export pipeline coordinate data, employs laser projection positioning system for precise layout, and intelligent mechanical grooving to avoid damage to reinforcing bars. During pre-embedding, RFID tags are used to track the position of pipe fittings, and BIM model is used to verify pipeline elevation and routing, ensuring that pipelines are coordinated with reinforcing bars and aluminum formwork systems.

[0030] Key control points include: real-time monitoring of the steel reinforcement protective layer using intelligent spacers; BIM model guidance for sealing at pipeline connections; and acceptance of all concealed works through 3D scanning and real-world comparison.

[0031] S5: Optimize the aluminum formwork splicing scheme through BIM technology and perform systematic installation of the aluminum formwork; S51: BIM Model Refinement and Optimization: Before construction, the aluminum formwork system is modeled and designed in 3D based on BIM technology to optimize the aluminum formwork assembly scheme, so that the aluminum formwork, climbing frame, steel bars and embedded pipelines are coordinated. Then, the node structure is adjusted through collision detection to generate a coded component list to guide the factory to process accurately and reduce on-site adjustments. Based on the BIM model data, CNC machine tools are used to process the aluminum molds with high precision, with a dimensional error of ≤±0.5mm. Each aluminum mold is marked with a unique code for rapid on-site identification and assembly. S52: Intelligent Measurement and Laying Out and Reference Positioning: Using a total station and a BIM layout robot, millimeter-level measurements and layouts are performed with an error of ≤1mm. Control lines are marked on the structural surface to determine the installation reference position of the aluminum formwork and ensure that it completely matches the design model. S53: Aluminum formwork pre-assembly: Before installation, partial pre-assembly should be carried out to check the flatness of the aluminum formwork, the tightness of the joints, and the matching of the reinforcement components. If any problems are found, they should be adjusted in time to avoid large-scale rework. S54: Standardized Installation Procedure Benchmark positioning: Install corner molds and positioning pins to establish a benchmark system; Wall and column formwork: Assemble according to the coding sequence, and use diagonal bracing to fine-tune the verticality; Beam and slab formwork: Install the support system simultaneously and control the camber height; Node treatment: Special connectors are used to reinforce critical areas such as inside and outside corners; S55: Real-time monitoring and fine-tuning During installation, laser scanners or intelligent monitoring equipment are used to detect the verticality and horizontality of the template in real time, and fine adjustments are made through a hydraulic adjustment system to ensure the quality of concrete molding. Among them, intelligent monitoring equipment generally includes tilt sensors, displacement / distance sensors and stress sensors; when concrete is poured after the aluminum formwork is installed, the real-time posture, stress information and deformation of the aluminum formwork can be monitored, and automatic early warning can be given.

[0032] S56: Climbing Frame Collaboration: The installation of aluminum formwork and the lifting of climbing scaffolds are carried out in a coordinated manner to ensure that there is no conflict between the wall attachments of the climbing scaffolds and the aluminum formwork support system. The lifting path is optimized through BIM simulation. After the installation is completed, 3D scanning technology is used to compare and accept the BIM model. Key data is recorded and archived to form a traceable quality management file.

[0033] S6: Install prefabricated components; S61: BIM Model Refinement and Component Transportation and Stacking Before construction, BIM technology is used to create 3D models and virtual pre-assemble prefabricated components, optimize the hoisting sequence and node connection method of components, and plan the optimal transportation route and on-site stacking area based on the BIM model. Transport vehicles with GPS positioning are used to monitor the transportation status of components in real time. After the components arrive on site, they are classified and stacked according to the installation sequence. Component information is quickly identified by scanning RFID tags to ensure hoisting efficiency. S62: Precise Measurement and Positioning: Using BIM layout robots and total stations for millimeter-level measurement and positioning, component installation control lines are marked on the structural surface. AR technology is used to overlay the virtual model with the actual position to assist construction personnel in accurate positioning, so that the installation accuracy is controlled within ±3mm. S63: Intelligent hoisting operations: Based on the hoisting scheme optimized by the BIM model, an intelligent tower crane with an automatic balancing system is used to hoist the components. During the hoisting process, the attitude of the components is monitored in real time by sensors to ensure that the components are placed smoothly. Temporary supports are set up at important nodes to ensure construction safety. S64: High-precision installation and adjustment: After the components are in place, a laser tracker and a fine-tuning device are used for precise positioning. The actual installation position is compared with the BIM model, and the fine-tuning device is used for fine-tuning to ensure that the installation error is controlled within the allowable range. The fine-tuning device is a hydraulic jack.

[0034] S65: Node Connection and Reinforcement: Construction is carried out according to the node connection scheme guided by the BIM model, using high-strength bolts or cast-in-place nodes, and using a smart torque wrench to confirm the connection quality. Real-time stress monitoring is carried out at important nodes to ensure structural safety.

[0035] After installation, 3D laser scanning technology is used to conduct real-world measurements and compare them with the BIM model for acceptance. Key quality data is automatically uploaded to the project management platform to form a complete quality traceability archive.

[0036] S7: Concrete pouring and intelligent curing; Before concrete pouring, BIM technology is used to conduct a three-dimensional construction simulation to optimize the concrete pouring sequence and pumping path, and to reasonably arrange the pouring points and vibration positions to avoid cold joints and air bubbles. At the same time, the stress situation with the aluminum formwork system is simulated to ensure the stability of the aluminum formwork. Then, based on the BIM model, the concrete volume of each part is accurately calculated, and the ERP system of the commercial concrete plant is connected for intelligent batching. GPS-positioned mixer trucks are used to monitor the transportation status in real time, and vehicles are intelligently dispatched in combination with the on-site progress to ensure continuous concrete supply and control slump loss within the allowable range. The system utilizes an intelligent pumping system to automatically adjust pumping pressure and flow rate based on the BIM model. It employs a vibratory rod with sensors to monitor vibration depth and time in real time, with data automatically uploaded to the BIM platform. A visual monitoring system is used for key areas. Immediately after pouring, a laser leveling machine is used for surface treatment. The elevation data in the BIM model guides the construction, ensuring that the flatness error is ≤3mm / 2m. A digital power trowel is used to finish the surface of important nodes.

[0037] An automatic sprinkler system is used to adjust the curing frequency based on monitoring data, and curing measures are dynamically adjusted in conjunction with weather forecasts. For large-volume concrete, an intelligent temperature control system is used to control the internal and external temperature difference to ≤25℃. After the curing period, a rebound hammer or ultrasonic testing digital equipment is used to conduct strength testing. The results are automatically compared with the design requirements in the BIM model to establish a complete electronic curing archive for quality traceability.

[0038] S8: Demolding and scaffolding lifting.

[0039] BIM Formwork Removal: A formwork removal time prediction model is established using BIM technology. Combined with concrete strength monitoring data, the formwork removal time nodes for each part are accurately calculated. A visual animation of the formwork removal sequence is generated to guide on-site operations. Then, an intelligent formwork removal robotic arm is used to operate in the predetermined sequence. The formwork removal force is monitored in real time through a force feedback system. The formwork removal data is uploaded to the BIM management platform in real time. After the removed aluminum formwork is processed by an automatic cleaning device, it is scanned and entered into the BIM inventory management system. The intelligent robotic arm performs damage detection and sorting and stacking for reuse quality. Climbing scaffold lifting: Based on the BIM model, the structural strength of each wall attachment point is checked. Intelligent monitoring equipment is used to comprehensively inspect the scaffold condition. The lifting conditions are confirmed through a stress monitoring system. An automatic synchronous lifting control system is applied to adjust the lifting speed of each hoisting point in real time, with the deviation controlled within ±5mm. The BIM platform monitors the lifting trajectory throughout the process and uses 3D laser scanning to compare with the design model, automatically generating an acceptance report. Key data is stored in the BIM operation and maintenance database. According to the changes in the working surface after lifting, the subsequent construction plan is dynamically adjusted through the BIM platform to ensure seamless connection of various professional processes.

[0040] Application example: This solution has been successfully applied to projects constructed by our company, including the main structure and supporting facilities of the Guiyang Evergrande Central Plaza E2 plot and the main structure and supporting facilities of the Guiyang Evergrande Children's World Phase I Plot 3 (Section 1). AR annotation and intelligent robotic arms were used to achieve efficient and non-destructive formwork removal (damage rate <1%), and a digital formwork turnover management system was established. During the climbing scaffolding lifting phase, an automatic synchronous control system (accuracy ±5mm) and real-time stress monitoring were used, combined with 3D laser scanning acceptance technology, resulting in a 40% increase in construction efficiency and a 90% reduction in the accident rate. The BIM-driven intelligent management platform enables full-process visual control, keeping material loss rate below 1.5%, providing a triple guarantee of "quality-efficiency-safety" for project construction, and is worthy of widespread application.

[0041] Economic benefits: Guiyang Evergrande Central Plaza E2 Plot Main Structure and Supporting Construction Project: Compared to traditional construction methods, even at the direct cost level, the integrated aluminum formwork climbing scaffold technology has demonstrated significant advantages due to its extremely high turnover rate and construction efficiency (saving 320,600 yuan). Although it requires investment in intelligent equipment, the savings in labor and material rental costs completely cover the expenditure on BIM and intelligent systems. This construction method increases construction efficiency by 40% and reduces labor requirements by 50%. The aluminum formwork can be reused 200 times, reducing formwork costs by 55%. The climbing scaffold system improves efficiency by 12 times, and precise BIM control reduces quality rework by 80%. In the long term, it can also bring a 3%–5% premium in selling price and 15%–20% energy-saving benefits in operation and maintenance, generating excellent economic benefits.

[0042] The main structure and supporting facilities construction project of Plot 3 (Section 1) of Phase I of Guiyang Evergrande Children's World: Compared with traditional construction techniques, although the initial investment in aluminum formwork and climbing scaffolding is higher when using this method, the optimization of resource allocation through BIM, the reduction of rework and material waste, and the long-term reuse can reduce the overall cost by approximately 440,000 yuan. At the same time, the construction period is shortened by more than 30%, and management fees and financial costs are reduced. The overall economic benefits are better than traditional construction methods. Its economic benefits are not only reflected in the direct savings in "human, material and machinery", but also in the huge indirect benefits (financial cost savings) and implicit benefits (faster capital turnover, brand enhancement, etc.) brought about by shortening the construction period. From the perspective of the project as a whole, the amount of savings is extremely considerable.

[0043] This technology promotes the transformation and upgrading of the construction industry through industrialized construction models, reducing construction dust by 70% and noise by 50%, thus helping to achieve the "dual carbon" goal. The fully enclosed climbing formwork system reduces the fall-from-height accident rate by 90%, significantly improving operational safety. Digital construction reduces on-site labor by 40% to 50%. In addition, standardized construction improves building quality by 30%, extends the building's service life by 10 to 15 years, and reduces the social resources occupied by later maintenance, resulting in significant comprehensive social benefits.

[0044] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A prefabricated building aluminum formwork climbing frame integrated construction process based on BIM technology, characterized by: Includes the following steps: S1: Utilize BIM technology to refine the design of the building information model; S2: Carry out pre-construction preparation work, including prefabricated component production, custom aluminum formwork processing, and equipment debugging; S3: Intelligent measurement and precise layout are carried out on the construction site. BIM layout robots are used in combination with total stations for on-site positioning, and virtual model data is converted into physical construction benchmarks; millimeter-level precision layout is achieved through three-dimensional coordinate control; S4: Rebar tying and pipeline pre-embedding are carried out on the construction site; S5: Optimize the aluminum formwork splicing scheme through BIM technology and perform systematic installation of the aluminum formwork; S6: Install prefabricated components; S7: Concrete pouring and intelligent curing; S8: Demolding and scaffolding lifting.

2. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: In S1, the detailed design of the building information model includes aluminum formwork, climbing formwork, prefabricated components, main structure and electromechanical pipelines. Collision detection is performed through the BIM model to optimize the design. Then, the connection between the climbing formwork and the main structure is reinforced with bolts. The aluminum formwork system for the outer window sill groove and the bathroom curb is further refined.

3. The integrated construction process of prefabricated building aluminum formwork climbing scaffolding based on BIM technology according to claim 1, characterized in that: In S2: Precast component production: Based on BIM model data, precast beams, slabs and columns of qualified precision are produced in a standardized factory. Custom aluminum mold processing: Based on the detailed BIM drawings, aluminum molds with qualified precision are processed by CNC machine tools to reduce the frequency of on-site adjustments; Equipment commissioning: Ensure the installation accuracy of the fully intelligent lifting system of the climbing scaffold and the aluminum formwork, and plan the fully intelligent steel climbing scaffold and self-climbing material platform.

4. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: In S4, the rebar tying is based on the BIM model to optimize the three-dimensional rebar layout and collision detection, and generates digital processing drawings to guide the CNC equipment to accurately cut materials. During construction, AR layout technology is used to locate the position of the reinforcing bars. The binding sequence and node details can be viewed through a mobile device to ensure that the spacing of the main bars, stirrups and anchorage lengths meet the design requirements.

5. The integrated construction process of prefabricated building aluminum formwork climbing scaffolding based on BIM technology according to claim 1, characterized in that: In S4, pipeline pre-embedding utilizes BIM model to export pipeline coordinate data, employs laser projection positioning system for precise layout, and intelligent mechanical grooving. During pre-embedding, RFID tags are used to track the position of pipe fittings, and BIM model is used to verify pipeline elevation and direction, ensuring that pipelines are coordinated with the steel reinforcement and aluminum formwork system.

6. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: The specific content of S5 includes the following steps: S51: BIM Model Refinement and Optimization: Before construction, the aluminum formwork system is modeled and designed in 3D based on BIM technology to optimize the aluminum formwork assembly scheme, so that the aluminum formwork, climbing frame, steel bars and embedded pipelines are coordinated. Then, the node structure is adjusted through collision detection to generate a coded component list to guide the factory to process accurately and reduce on-site adjustments. Based on the BIM model data, CNC machine tools are used to process the aluminum molds with high precision, with a dimensional error of ≤±0.5mm. Each aluminum mold is marked with a unique code for rapid on-site identification and assembly. S52: Intelligent Measurement and Laying Out and Reference Positioning: Using a total station and a BIM layout robot, millimeter-level measurements and layouts are performed with an error of ≤1mm. Control lines are then marked on the structural surface to determine the reference position for aluminum formwork installation. S53: Aluminum formwork pre-assembly: Before installation, partial pre-assembly should be carried out to check the flatness of the aluminum formwork, the tightness of the joints, and the matching of the reinforcement components. If any problems are found, they should be adjusted in time. S54: Standardized Installation Procedure Benchmark positioning: Install corner molds and positioning pins to establish a benchmark system; Wall and column formwork: Assemble according to the coding sequence, and use diagonal bracing to fine-tune the verticality; Beam and slab formwork: Install the support system simultaneously and control the camber height; Node treatment: Special connectors are used to reinforce critical areas such as inside and outside corners; S55: Real-time monitoring and fine-tuning During installation, a laser scanner or intelligent monitoring device is used to detect the verticality and horizontality of the template in real time, and fine adjustments are made through a hydraulic adjustment system. S56: Climbing Frame Collaboration: The installation of aluminum formwork and the lifting of climbing scaffolds are carried out in a coordinated manner to ensure that there is no conflict between the wall attachments of the climbing scaffolds and the aluminum formwork support system. The lifting path is optimized through BIM simulation. After the installation is completed, 3D scanning technology is used to compare and accept the BIM model. Key data is recorded and archived to form a traceable quality management file.

7. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: The specific content of S6 includes the following steps: S61: BIM Model Refinement and Component Transportation and Stacking Before construction, BIM technology is used to create 3D models and virtual pre-assemble prefabricated components, optimize the hoisting sequence and node connection method of components, and plan the optimal transportation route and on-site stacking area based on the BIM model. Transport vehicles with GPS positioning are used to monitor the transportation status of components in real time. After the components arrive on site, they are classified and stacked according to the installation sequence. Component information is quickly identified by scanning RFID tags to ensure hoisting efficiency. S62: Precise Measurement and Positioning: Using BIM layout robots and total stations for millimeter-level measurement and positioning, component installation control lines are marked on the structural surface. AR technology is used to overlay the virtual model with the actual position to assist construction personnel in accurate positioning, so that the installation accuracy is controlled within ±3mm. S63: Intelligent hoisting operations: Based on the hoisting scheme optimized by the BIM model, an intelligent tower crane with an automatic balancing system is used to hoist the components. During the hoisting process, the attitude of the components is monitored in real time by sensors to ensure that the components are placed smoothly. Temporary supports are set up at important nodes. S64: High-precision installation and adjustment: After the components are in place, a laser tracker and a fine-tuning device are used for precise positioning. The actual installation position is compared with the BIM model, and the fine-tuning device is used for fine-tuning. S65: Node Connection and Reinforcement: Construction is carried out according to the node connection scheme guided by the BIM model, using high-strength bolts or cast-in-place nodes, and using a smart torque wrench to confirm the connection quality. Real-time stress monitoring is carried out at important node locations. After installation, 3D laser scanning technology is used to conduct real-world measurements and compare them with the BIM model for acceptance. Key quality data is automatically uploaded to the project management platform to form a complete quality traceability archive.

8. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: In S7, the concrete pouring specifically involves: Before concrete pouring, BIM technology is used to conduct three-dimensional construction simulation to optimize the concrete pouring sequence and pumping path, and to reasonably arrange pouring points and vibration positions. At the same time, the stress on the aluminum formwork system is simulated to ensure the stability of the aluminum formwork. Then, based on the BIM model, the concrete volume of each part is accurately calculated, and the ERP system of the commercial concrete plant is connected for intelligent batching. The GPS-positioned mixer trucks are used to monitor the transportation status in real time, and the vehicles are intelligently dispatched in combination with the on-site progress to ensure continuous supply of concrete and control the slump loss within the allowable range. The system utilizes an intelligent pumping system to automatically adjust pumping pressure and flow rate based on the BIM model. It employs a vibratory rod with sensors to monitor vibration depth and time in real time, with data automatically uploaded to the BIM platform. A visual monitoring system is used for key areas. Immediately after pouring, a laser leveling machine is used for surface treatment. The elevation data in the BIM model guides the construction, ensuring that the flatness error is ≤3mm / 2m. A digital power trowel is used to finish the surface of important nodes.

9. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: In S7, intelligent maintenance specifically refers to: An automatic sprinkler system is used to adjust the curing frequency based on monitoring data, and curing measures are dynamically adjusted in conjunction with weather forecasts. For large-volume concrete, an intelligent temperature control system is used to control the internal and external temperature difference to ≤25℃. After the curing period, a rebound hammer or ultrasonic testing digital equipment is used to conduct strength testing. The results are automatically compared with the design requirements in the BIM model to establish a complete electronic curing archive for quality traceability.

10. The integrated construction process of prefabricated building aluminum formwork climbing frame based on BIM technology according to claim 1, characterized in that: Specifically, S8 includes the following: BIM Formwork Removal: A formwork removal time prediction model is established using BIM technology. Combined with concrete strength monitoring data, the formwork removal time nodes for each part are accurately calculated. A visual animation of the formwork removal sequence is generated to guide on-site operations. Then, an intelligent formwork removal robotic arm is used to operate in the predetermined sequence. The formwork removal force is monitored in real time through a force feedback system. The formwork removal data is uploaded to the BIM management platform in real time. After the removed aluminum formwork is processed by an automatic cleaning device, it is scanned and entered into the BIM inventory management system. The intelligent robotic arm performs damage detection and sorting and stacking for reuse quality. Climbing scaffold lifting: Based on the BIM model, the structural strength of each wall attachment point is checked. Intelligent detection equipment is used to comprehensively inspect the scaffold condition. The lifting conditions are confirmed through a stress monitoring system. An automatic synchronous lifting control system is applied to adjust the lifting speed of each lifting point in real time, with the deviation controlled within ±5mm. The BIM platform monitors the lifting trajectory throughout the process and uses 3D laser scanning to compare with the design model, automatically generating an acceptance report. Key data is stored in the BIM operation and maintenance database. According to the changes in the working surface after lifting, the subsequent construction plan is dynamically adjusted through the BIM platform to ensure seamless connection of various professional processes.

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