Intelligent processing method for high-speed railway prefabricated box girder reinforcing steel bars based on BIM (Building Information Modeling) technology

Abstract

The invention discloses an intelligent processing method for high-speed railway prefabricated box girder reinforcing steel bars based on a BIM technology. The method comprises the steps that the prefabricated box girder reinforcing steel bars to be constructed are divided into layers, and the axis path of a reinforcing steel bar bulk sample is drawn; endowing steel bar parameters to the axis path of the steel bar bulk sample; the number and spatial positions of various steel bars of the prefabricated box girder are determined, and a BIM box girder steel bar model of the whole prefabricated box girder is created; extracting reinforcing steel bar information of the BIM box girder reinforcing steel bar model, encoding reinforcing steel bars, and generating processing data information according to the encoded reinforcing steel bar information; the processing data information is uploaded to an informatization management platform, and the informatization management platform sends the data to the corresponding reinforcing steel bar intelligent processing equipment for reinforcing steel bar processing; according to the invention, intelligentization, digitization, informatization and less manpower of reinforcing steel bar processing are realized, the requirements of various types of reinforcing steel bars, short construction time and high quality requirements of the box girder can be met aiming at prefabrication of 40m box girders at the speed of 400 kilometers per hour, and the production efficiency and the production quality of the box girder are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated box girder reinforcement processing, and relates to an intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology. Background Art

[0002] At present, most of my country's steel bar engineering projects still use traditional on-site processing methods, which have prominent problems such as high waste of raw materials, high labor intensity of workers, long steel bar processing cycle, and difficult on-site management. With the application of BIM technology, the rapid development of construction automation and specialized division of labor, intelligent steel bar processing and distribution centers have become an inevitable trend in market development.

[0003] In addition, the intelligence level of steel bar processing equipment is getting higher and higher, the data input method is becoming simpler and easier to operate, the interface compatibility with BIM will also be higher and higher, and the compatibility of multiple formats has reduced the requirements for BIM software. The development of BIM technology will reduce the difficulty of steel bar modeling, and only the in-depth design of BIM model is required. With the application of various computer management systems (MES), on-site raw material inventory, surplus material inventory, semi-finished product processing quantity statistics and other work will be more intelligent and accurate.

[0004] For the prefabrication of 40m box girders that can reach a speed of 400 kilometers per hour, there are many types of box girder steel bars, tight construction time and high quality requirements, and traditional steel bar processing methods are difficult to meet the requirements.

[0005] The Chinese patent application (application number 202010782483.0) provides a complete set of methods for optimizing steel bar cutting and automated processing and management based on BIM, which includes S1: after establishing the steel bar BIM model, analyzing the steel bar information to be processed, using the cutting optimization algorithm to obtain the cutting plan, and compiling the silo sorting algorithm to allocate the warehouse position of the semi-finished steel bar after cutting, and writing the corresponding cutting plan and warehouse position information into the steel bar processing material list; S2: the computer uploads the steel bar processing material list to the cloud database, and the automated processing equipment reads the steel bar processing material list and performs automated steel bar cutting, transportation and sorting; S3: collects various information during the steel bar processing process, and uploads it to the unified management platform in real time. The unified management platform updates the steel bar processing situation in real time, and establishes a digital ledger to achieve refined management of steel bar processing. The present invention improves the utilization rate of steel bar raw materials and saves engineering costs; realizes refined management of steel bar processing site, and solves the problems of extensive steel bar processing management and statistical difficulties from the root. However, this method does not address the problems of prefabrication of 40m box girders with a speed of 400 kilometers per hour, a wide variety of box girder steel bars, and tight construction time. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an intelligent processing method for prefabricated box girder steel bars for high-speed railways based on BIM technology, which can be used for prefabrication of 40m box girders with a speed of 400 kilometers per hour, and meet the needs of a wide variety of box girder steel bars, tight construction time and high quality requirements.

[0007] The technical solution adopted by the present invention is: an intelligent processing method for steel bars of a high-speed railway prefabricated box girder based on BIM technology, the method comprising:

[0008] Step 1: Divide the prefabricated box girder reinforcement into layers in the reinforcement modeling software and draw the axis path of the reinforcement sample;

[0009] Step 2: Assign steel bar parameters, including model, diameter, whether there is a hook and its corresponding parameters;

[0010] Step 3: Determine the quantity and spatial position of various types of steel bars in the prefabricated box girder, and create a BIM box girder steel bar model of the entire prefabricated box girder based on the quantity and space;

[0011] Step 4: Extract the reinforcement information of the BIM box girder reinforcement model and perform reinforcement coding, and generate processing data information based on the coded reinforcement information;

[0012] Step 5: Upload the processing data information to the information management platform, and the information management platform sends the data to the corresponding intelligent steel bar processing equipment for steel bar processing.

[0013] Furthermore, in the above step 1, the layers are divided according to the types of box girder reinforcement, and the layers include top plate reinforcement, web plate reinforcement and bottom plate reinforcement. The axial path of the reinforcement sample is drawn in the model space, and the axial path draws the main path without hooks.

[0014] Furthermore, in the above step 2, the method of assigning steel bar parameters is: first construct a box girder solid structure, and then assign model, diameter, and hook parameters to different types of steel bars in various layers in turn to generate various steel bar sample models.

[0015] Furthermore, the method for creating the BIM box girder reinforcement model in the above step three is: through the basic commands of copying, arraying, moving, and rotating, various types of reinforcement model samples are arranged according to the spatial position and spacing in the box girder design drawings, and then according to the actual situation of on-site construction, appropriate adjustments are made to the individual reinforcement collisions or insufficient protective layer thickness in the model created according to the drawings to complete the creation of the overall reinforcement model of the box girder.

[0016] Furthermore, after the BIM box girder steel bar model of the prefabricated box girder as a whole is created in the above step 4, it is necessary to encode various types of steel bars, obtain the production data information of the steel bars, and then export the production data information of various types of steel bars in the table format of the production data information required by the steel bar intelligent processing equipment.

[0017] Furthermore, the steel bar production data exported from the above-mentioned BIM box girder steel bar model is uploaded to the information management platform (MES steel bar management platform), and the management platform then interacts with the steel bar intelligent processing equipment. The steel bar intelligent processing equipment performs steel bar cutting, bending and welding according to the extracted production data information.

[0018] Furthermore, the above-mentioned BIM software and the information management platform interact with each other by calling the interface to directly transmit the steel bar production data to the information management platform, or export the steel bar production data from the BIM software in Excel or BVBS file format. The information management platform parses the exported file and converts it into the material list data required in the management platform.

[0019] Furthermore, the data interaction between the above-mentioned information management platform and the intelligent steel bar processing equipment is achieved by calling the interface software. The interface software provides standard content including data sending interface, equipment production and processing interface and equipment operation status alarm interface. The interface docking method is Http request and the data is in json format.

[0020] Furthermore, the processing data of the above-mentioned intelligent steel bar processing equipment is: the order information of box girder steel bar processing is released as needed, the information management platform generates a task list based on the decomposition of the BIM box girder steel bar model, and the intelligent steel bar processing equipment receives the production task list for processing.

[0021] Furthermore, the above-mentioned intelligent steel bar processing equipment includes an intelligent welding system for box girder positioning net, a four-axis horizontal steel bar intelligent CNC bending center, a CNC steel bar hoop bending machine + intelligent material grabbing robot, a CNC inclined bending center and a steel bar intelligent transportation device. The intelligent welding system for box girder positioning net is used for automatic welding of box girder positioning steel bar mesh, the four-axis horizontal steel bar intelligent CNC bending center is used for bending processing of box girder U-shaped bars, the CNC steel bar hoop bending machine + intelligent material grabbing robot is used for bending and unloading steel bars, the CNC inclined bending center is used for automatic loading and bending of semi-finished steel bars of the beam body, and the steel bar intelligent transportation device is used to automatically transport the processed steel bars to the box girder steel bar binding jig for use.

[0022] Beneficial effects of the present invention: Compared with the prior art, the present invention constructs a BIM steel bar model of a box girder through BIM technology and uploads it to an information management platform. Managers release order information as needed. The platform generates a task list based on the intelligent decomposition of the model and starts automatic processing on the production line, thereby realizing intelligent, digital, information-based and less-manpowered steel bar processing. It is aimed at the prefabrication of 40m box girders at a speed of 400 kilometers per hour and can meet the needs of a wide variety of box girder steel bars, tight construction time and high quality requirements, thereby greatly improving the production efficiency and quality of box girders. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a flow chart of the intelligent processing method of steel bars for prefabricated box girders of high-speed railways based on BIM technology;

[0024] Figure 2 To draw a schematic diagram of the axis path of the steel bar sample;

[0025] Figure 3 Draw a schematic diagram of reinforcement parameters for assignment;

[0026] Figure 4 This is a schematic diagram of some end reinforcements of the BIM box girder reinforcement model;

[0027] Figure 5 This is a schematic diagram of the overall end structure of the BIM box girder reinforcement model;

[0028] Figure 6 To extract the coding diagram of the BIM box girder reinforcement model;

[0029] Figure 7 This is the data information diagram after encoding;

[0030] Figure 8 This is a schematic diagram of data interaction. DETAILED DESCRIPTION

[0031] The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Example 1: Reference Figure 1 As shown, a method for intelligent processing of steel bars for prefabricated box girders for high-speed railways based on BIM technology comprises:

[0033] Step 1: Divide the prefabricated box girder reinforcement into layers in the reinforcement modeling software and draw the axis path of the reinforcement sample;

[0034] In order to achieve modeling accurately and quickly, in step one, firstly, the layers are divided according to the types of box girder reinforcements, and the layers include top plate reinforcements, web reinforcements and bottom plate reinforcements. Taking the 40m box girder reinforcements as an example: top plate reinforcements N26-Φ12; web reinforcements N21-Φ16; bottom plate reinforcements N28-Φ18, and then the axial path of the reinforcement sample is drawn in the model space. There are generally two drawing methods: one is to directly draw the box girder reinforcement path (including hooks) as a whole, and cancel the parameterized hooks provided by the generation system when generating the reinforcement entity; the other is to draw only the main body path (excluding hooks), and then generate hooks when assigning reinforcement parameters; the present invention preferably draws the axial path of the reinforcement sample;

[0035] Step 2: Assign steel bar parameters, including model, diameter, whether there is a hook and its corresponding parameters;

[0036] In order to quickly realize modeling, in step 2, the method of assigning steel bar parameters is as follows: since the steel bar model cannot exist independently and must be attached to a certain entity (but it does not have to be inside the entity), to generate a box girder steel bar entity, it is necessary to first build a box girder entity structure, and then assign the model, diameter, and hook parameters to different types of steel bars in various layers in turn to generate various steel bar template models;

[0037] Step 3: Determine the quantity and spatial position of various types of steel bars in the prefabricated box girder, and create a BIM box girder steel bar model of the entire prefabricated box girder based on the quantity and space;

[0038] In order to achieve rapid modeling, a large number of identical steel bars are applied to each layer in the BIM box girder reinforcement model. The rapid modeling command can improve the modeling efficiency. That is, the method for creating the BIM box girder reinforcement model in step 3 is: various reinforcement sample models are arranged according to the spatial position and spacing in the box girder design drawings through the basic commands of copying, arraying, moving, and rotating. Then, according to the actual situation of on-site construction, appropriate adjustments are made to the collision of individual reinforcement bars or insufficient reserved thickness of the protective layer in the model created based on the drawings to complete the creation of the overall reinforcement model of the box girder.

[0039] Step 4: Extract the reinforcement information of the BIM box girder reinforcement model and perform reinforcement coding, and generate processing data information based on the coded reinforcement information;

[0040] After the box girder reinforcement model is created, it is necessary to encode various types of reinforcements in order to obtain the production data information of the reinforcements, and then export the production data information of various types of reinforcements in a table format for smart devices;

[0041] In order to facilitate data interaction and the accuracy of data interaction, after the BIM box girder steel bar model of the prefabricated box girder is created in step 4, it is necessary to encode various steel bars, obtain the production data information of the steel bars, and then export the various steel bar production data information in the table format of the production data information required by the steel bar intelligent processing equipment. By encoding the steel bar data information of the box girder steel bar model, it is convenient to classify the data, and the classified steel bar data information is stored in a table form, which is convenient for data viewing and transmission as well as data calibration and processing (production data information needs to be converted into processing technology information);

[0042] Step 5: Upload the processing data information to the information management platform, and the information management platform sends the data to the corresponding intelligent steel bar processing equipment for steel bar processing.

[0043] In order to realize information management and facilitate data processing and monitoring, the steel bar production data exported from the BIM box girder steel bar model is uploaded to the information management platform (MES steel bar management platform), and the management platform then interacts with the steel bar intelligent processing equipment. The steel bar intelligent processing equipment performs steel bar cutting, bending and welding according to the extracted production data information. The information management platform collects the steel bar production data extracted from the BIM box girder steel bar model and stores and monitors it. The steel bar intelligent processing equipment can be calibrated according to the transmitted production data information. After accurate calibration, it generates the steel bar processing process parameters for debugging. After debugging the optimal process parameters, production is carried out.

[0044] The information interaction between BIM software and the information management platform is to directly transmit the steel bar production data to the information management platform by calling the interface, or to export the steel bar production data from the BIM software in Excel or BVBS file format. The information management platform parses the exported file and converts it into the material list data required by the management platform. The graphic information is compiled in the form of "side length, angle; side length, angle;", as shown in the following table.

[0045] Steel bar ingredients list

[0046]

[0047] The BIM software used in the BIM box girder reinforcement model is Bentley ProStructure software, which can accurately construct the prefabricated box girder reinforcement model. The model error can be controlled within 2mm. The reinforcement module parameters in Bentley software are richer and the modeling methods are more diversified.

[0048] In order to improve the efficiency and accuracy of data interaction between the information management platform and the intelligent steel bar processing equipment, the data interaction between the information management platform and the intelligent steel bar processing equipment is realized by calling the interface software. The interface software provides standard content including data sending interface, equipment production and processing interface and equipment operation status alarm interface. The interface docking method is Http request and the data is in json format.

[0049] Different types or lengths of steel bars in different parts need to be assigned to different intelligent steel bar processing equipment for processing. In the process of delivering the production task list, the tasks need to be decomposed to obtain different production tasks, which correspond to different processing equipment, thereby improving processing efficiency and allocation accuracy. That is, the processing data of the intelligent steel bar processing equipment is: the order information of box girder steel bar processing is released as needed, the information management platform decomposes and generates a task list according to the BIM box girder steel bar model, and the intelligent steel bar processing equipment receives the production task list for processing.

[0050] In order to improve the efficiency of box girder steel bar processing, the intelligent steel bar processing equipment includes an intelligent welding system for box girder positioning net, a four-axis horizontal steel bar intelligent CNC bending center, a CNC steel bar bending hoop machine + intelligent material grabbing robot, a CNC inclined bending center and a steel bar intelligent transportation device. The intelligent welding system for box girder positioning net is used for automatic welding of box girder positioning steel bar mesh, the four-axis horizontal steel bar intelligent CNC bending center is used for bending processing of box girder U-shaped bars, the CNC steel bar bending hoop machine + intelligent material grabbing robot is used for steel bar bending and unloading, the CNC inclined bending center is used for automatic loading and bending of semi-finished steel bars of the beam body, and the steel bar intelligent transportation device is used to automatically transport the processed steel bars to the box girder steel bar binding jig for use, and receive the processing data through the corresponding steel bar processing equipment of each layer, perform corresponding processing, and finally summarize it to the box girder steel bar binding jig. For the steel bar binding of 40m long high-speed railway simply supported box girder structure, it can greatly improve the steel bar processing efficiency and processing accuracy, and avoid human interference caused by inconsistent labor levels.

[0051] Box beam positioning net intelligent welding system:

[0052] ①It has the functions of intelligent unloading and automatic placement of positioning net molds.

[0053] ②It has the function of automatically placing finished products.

[0054] ③Interact with the beam yard information management platform to realize one-click forming of the positioning mesh, reducing the number of positioning mesh production personnel by 2 to 3.

[0055] ④ The positioning mesh has high processing accuracy, which reduces the positioning error of the rubber drawing tube.

[0056] ⑤Use resistance welding, green and environmentally friendly.

[0057] Four-axis horizontal steel bar intelligent CNC bending center:

[0058] ① Realize automatic processing and production of U-shaped reinforcement of box beam with high precision and high efficiency.

[0059] ② Adding an automatic material receiving device reduces the number of production workers by 2 compared with the traditional vertical four-axis intelligent CNC steel bar bending center.

[0060] ③Interact with the beam yard information management platform to make orders.

[0061] CNC steel bar bending machine + intelligent material grabbing robot

[0062] ①It has a wide range of applications and is suitable for the production of steel bars with a diameter of less than 16mm.

[0063] ②Rebar hoop bending machine + intelligent material receiving and grabbing robot, intelligent and efficient, can reduce one production worker.

[0064] ③Interact with the beam yard information management platform to make orders.

[0065] CNC bevel bending center:

[0066] ① Automatically load and bend semi-finished steel bars of beams, with a high degree of automation.

[0067] ② It is suitable for processing various types of semi-finished steel bars for beams, and the equipment has strong applicability and high efficiency.

[0068] ③Interact with the beam yard information management platform to make orders.

[0069] Intelligent steel bar transportation device: The processed steel bars are transported to the designated location through truss cranes and new energy intelligent transportation carts.

[0070] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A method for intelligent processing of steel bars for prefabricated box girders of high-speed railways based on BIM technology, characterized in that: The method includes: Step 1: Divide the prefabricated box girder reinforcement into layers in the reinforcement modeling software and draw the axis path of the reinforcement sample; Step 2: Assign steel bar parameters, including model, diameter, whether there is a hook and its corresponding parameters; Step 3: Determine the quantity and spatial position of various types of steel bars in the prefabricated box girder, and create a BIM box girder steel bar model of the entire prefabricated box girder based on the quantity and space; Step 4: Extract the reinforcement information of the BIM box girder reinforcement model and perform reinforcement coding, and generate processing data information based on the coded reinforcement information; Step 5: Upload the processing data information to the information management platform, and the information management platform sends the data to the corresponding intelligent steel bar processing equipment for steel bar processing.

2. According to the BIM technology-based intelligent processing method for high-speed railway prefabricated box girder reinforcement according to claim 1, it is characterized by: In step one, the layers are divided according to the types of box girder reinforcement. The layers include top plate reinforcement, web plate reinforcement and bottom plate reinforcement. The axial path of the reinforcement sample is drawn in the model space. The axial path is the main path without hooks.

3. According to claim 2, a method for intelligent processing of steel bars for prefabricated box girders of high-speed railways based on BIM technology is characterized in that: In step 2, the method of assigning steel bar parameters is: first build a box girder solid structure, and then assign model, diameter, and hook parameters to different types of steel bars in various layers in turn to generate various steel bar template models.

4. According to the BIM technology-based intelligent processing method for high-speed railway prefabricated box girder reinforcement according to claim 3, it is characterized by: The method for creating the BIM box girder reinforcement model in step three is: arrange various types of reinforcement models according to the spatial position and spacing in the box girder design drawings through basic commands such as copying, arraying, moving, and rotating. Then, according to the actual on-site construction situation, make appropriate adjustments to the individual reinforcement collisions or insufficient reserved protective layer thickness in the model created based on the drawings to complete the creation of the overall box girder reinforcement model.

5. The intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology according to claim 4 is characterized by: After the BIM box girder reinforcement model of the prefabricated box girder is created in step 4, it is necessary to encode various types of steel bars, obtain the production data information of the steel bars, and then export the production data information of various types of steel bars in the table format of the production data information required by the steel bar intelligent processing equipment.

6. The intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology according to claim 4 is characterized by: The steel bar production data exported from the BIM box girder steel bar model is uploaded to the information management platform (MES steel bar management platform), and the management platform then interacts with the steel bar intelligent processing equipment. The steel bar intelligent processing equipment performs steel bar cutting, bending and welding based on the extracted production data information.

7. The intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology according to claim 6 is characterized by: The information exchange between BIM software and the information management platform is carried out by calling the interface to directly transmit the steel bar production data to the information management platform, or export the steel bar production data from the BIM software in Excel or BVBS file format. The information management platform parses the exported file and converts it into the material list data required by the management platform.

8. The intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology according to claim 7 is characterized by: The data interaction between the information management platform and the intelligent steel bar processing equipment is achieved by calling the interface software. The interface software provides standard content including data sending interface, equipment production and processing interface and equipment operation status alarm interface. The interface docking method is Http request and the data is in json format.

9. The intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology according to claim 1 is characterized by: The processing data of the intelligent steel bar processing equipment is: the order information of box girder steel bar processing is released as needed, the information management platform generates a task list based on the decomposition of the BIM box girder steel bar model, and the intelligent steel bar processing equipment receives the production task list for processing.

10. The intelligent processing method for high-speed railway prefabricated box girder reinforcement based on BIM technology according to claim 1, characterized in that: The intelligent steel bar processing equipment includes the intelligent welding system for the box girder positioning net, the four-axis horizontal steel bar intelligent CNC bending center, the CNC steel bar hoop bending machine + intelligent material receiving and grabbing robot, the CNC inclined bending center and the steel bar intelligent transportation device. The intelligent welding system for the box girder positioning net is used for automatic welding of the box girder positioning steel bar mesh. The four-axis horizontal steel bar intelligent CNC bending center is used for bending the U-shaped bars of the box girder. The CNC steel bar hoop bending machine + intelligent material receiving and grabbing robot is used for bending and unloading of steel bars. The CNC inclined bending center is used for automatic loading and bending of semi-finished steel bars of the beam body. The steel bar intelligent transportation device is used to automatically transport the processed steel bars to the box girder steel bar binding jig for use.

Images