Simply supported girder bridge virtual construction optimization method and system based on digital twinborn technology

Abstract

The invention relates to a simply supported girder bridge virtual construction optimization method based on a digital twin technology, and the method comprises the steps: building a BIM model which comprises a simply supported girder bridge BIM model, a girder field BIM model and an equipment BIM model; construction information data are collected, the construction information data are hung to the BIM model, and the construction information data comprise one or more of box girder production data, box girder transportation data and box girder erection data; a virtual construction system is constructed based on a digital twinborn technology, and real-time monitoring and visual display are carried out on the manufacturing, transportation and erection process of the simply supported girder bridge in combination with a BIM model. According to the simply supported girder bridge virtual building optimization method based on the digital twinborn technology, the construction progress can be mastered in real time according to the BIM model, and related data can be monitored; the virtual building system constructed based on the digital twinborn technology is combined with a whole-line BIM model to carry out real-time monitoring and visual display on the manufacturing, transportation and erection process of the simply supported girder bridge, interconnection and collaboration are achieved, and therefore the construction period is shortened, and the safety risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of simply supported beam bridge construction, and in particular to a virtual construction optimization method and system for a simply supported beam bridge based on digital twin technology. Background Art

[0002] With the rapid development of global high-speed railway technology, the requirements for bridge structures are also increasing. As an important component of high-speed railway bridges, the manufacturing, transportation and erection technology of simply supported box girders directly affect the safety, comfort and efficient operation of high-speed railways.

[0003] Due to the complicated construction procedures of traditional simply supported box girder manufacturing and transportation frames, the vast amount of construction information, and the low level of informatization of construction process equipment, there are great safety risks in the operation of large-scale process equipment when carrying out beam manufacturing, transportation and moving in a construction environment with complex terrain, and the construction cycle is long and difficult to manage. Summary of the invention

[0004] The present application provides a virtual construction optimization method for a simply supported beam bridge based on digital twin technology, which solves the technical problems of long construction period and high safety risk in the manufacturing, transportation and erection technology of simply supported box girders in related technologies.

[0005] The embodiment of the present application provides a virtual construction optimization method for a simply supported beam bridge based on digital twin technology, which includes the following steps:

[0006] Establishing a BIM model, wherein the BIM model includes a simply supported beam bridge BIM model, a beam yard BIM model, and an equipment BIM model;

[0007] Collecting construction information data, and attaching the construction information data to the BIM model, wherein the construction information data includes one or more of box girder production data, box girder transportation data, and box girder erection data;

[0008] A virtual construction system is constructed based on the digital twin technology, and the manufacturing, transportation and erection processes of the simply supported beam bridge are monitored in real time and visualized in combination with the BIM model.

[0009] In one embodiment, establishing the BIM model includes:

[0010] Divide the simply supported beam bridge into multiple units, and establish a basic model of the simply supported beam bridge with the smallest unit; add material information and design parameters of the simply supported beam bridge to the basic model of the simply supported beam bridge to form a BIM model of the simply supported beam bridge;

[0011] Divide the beam yard used for beam manufacturing into multiple functional areas and establish beam yard BIM models for each area;

[0012] Establish an equipment basic model, wherein the equipment includes one or more of a transporter, a beam lifting machine, a beam transporter, and a bridge erecting machine; add attribute information to the equipment basic model to form a BIM model of the equipment.

[0013] In one embodiment, when establishing the basic model of a simply supported beam bridge, a beam body BIM model is established for each simply supported beam, and engineering entity decomposition is performed. According to the engineering entity decomposition coding, the construction information data and the beam body BIM model are corresponded one by one.

[0014] In one embodiment, the functional area includes one or more of a steel bar processing area, a box beam prefabrication area, a box beam storage area, a beam transport channel, a lifting station, a material storage area, and a beam yard test laboratory.

[0015] In one embodiment, the box girder production data includes one or more of the box girder construction plan, box girder construction process data, box girder production materials, personnel information, and design information; the box girder transportation data includes beam shifting data, beam lifting data, and beam transport data; the box girder erection data includes one or more of beam body information, erection time, erection location, erection quality, and bridge erection machine monitoring and early warning data.

[0016] In one embodiment, the virtual construction system includes a prefabricated box beam production system for prefabricated beam production management, a large temporary equipment monitoring system for equipment safety management, and a bridge image progress monitoring system for simply supported beam bridge construction progress management.

[0017] In one embodiment, the prefabricated box beam production system comprises:

[0018] The beam yard electronic sand table module is configured to: construct a virtual beam yard based on the digital twin technology to display the distribution of each functional area of ​​the beam yard, and display the current beam manufacturing and storage status of the beam yard in combination with the BIM model;

[0019] The beam yard production information module is configured to: display the beam manufacturing and storage information, corresponding process, and construction time of each pedestal in the beam yard in real time, display the design information and production information in combination with the BIM model, and conduct real-time monitoring and early warning of the operation of the box beam production equipment;

[0020] The rebar production module is configured to: manage the types and quantities of rebar consumption, types and quantities of rebar processing, and process rebars through remote production;

[0021] The concrete production module is configured to collect and monitor raw material arrival and consumption information, and concrete production information.

[0022] In one embodiment, the large clinical equipment monitoring system includes:

[0023] The handling machine monitoring and early warning module is configured to: monitor the operating status of the handling machine, perform real-time calculation and monitoring and early warning of the structural safety status, and display the structural stress state and deformation status in combination with the BIM model;

[0024] The beam hoist monitoring and early warning module is configured to: collect and monitor beam hoist parameters in real time, wherein the beam hoist parameters include one or more of lifting weight, lifting height, wind speed, temperature, stress, and inclination angle, and display the stress state and deformation of the structure in combination with the BIM model;

[0025] The beam transport vehicle monitoring and early warning module is configured to: collect and monitor beam transport vehicle parameters in real time, wherein the beam transport vehicle parameters include one or more of the main beam inclination angle, travel speed, longitudinal displacement and speed of the beam-carrying trolley, wind speed, and beam transport vehicle position information;

[0026] The bridge-building machine monitoring and early warning module is configured to monitor the operating status of the bridge-building machine in real time.

[0027] In one embodiment, the bridge image progress monitoring system includes:

[0028] The visual progress module is configured to: assign progress information to the simply supported beam bridges along the entire line in combination with the BIM model, so as to view the progress information of the control and transportation frames of the simply supported beam bridges.

[0029] The progress preview module is configured to simulate and display the construction progress of the simply supported beam bridge in combination with the BIM model before construction.

[0030] The embodiment of the present application also provides a virtual construction optimization system for a simply supported beam bridge based on digital twin technology, which includes:

[0031] The BIM system is configured to: establish a BIM model, wherein the BIM model includes a simply supported beam bridge BIM model, a beam yard BIM model, and an equipment BIM model;

[0032] Data collection system: configured to: collect construction information data, and attach the construction information data to the BIM model, wherein the construction information data includes one or more of box girder production data, box girder transportation data, and box girder erection data;

[0033] The virtual construction system is configured as follows: constructed based on the digital twin technology, and combined with the BIM model to conduct real-time monitoring and visualization of the manufacturing, transportation and erection processes of the simply supported beam bridge.

[0034] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0035] The present application provides a virtual construction optimization method for a simply supported beam bridge based on digital twin technology. In the process of simply supported beam bridge construction, BIM models are established for related simply supported beam bridge structures, beam yards and equipment; and construction information data are attached to the BIM model, so that the construction progress and monitoring related data can be grasped in real time according to the BIM model; finally, a virtual construction system is constructed based on the digital twin technology, and the manufacturing, transportation and erection processes of the simply supported beam bridge are monitored and visualized in real time in combination with the full-line BIM model. The manufacturing, transportation and erection processes of the simply supported beam bridge in the physical world are mapped and interacted with the models in the digital virtual world in real time, thereby realizing the interconnected coordination and intelligent management of the entire process, thereby improving construction accuracy, optimizing construction plans, shortening construction periods, and reducing safety risks. Furthermore, the virtual construction system and the full-line BIM model facilitate auxiliary decision-making, intelligent production and scientific supervision of the construction process of the simply supported beam bridge, providing strong support for the digital transformation and intelligent upgrading of the bridge construction industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 It is a flow chart of a method for virtual construction optimization of a simply supported beam bridge based on digital twin technology in one embodiment of the present invention. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] The embodiment of the present application provides a virtual construction optimization method for a simply supported beam bridge based on digital twin technology, which can solve the technical problems of long construction period and high safety risk in the manufacturing, transportation and erection technologies of simply supported box girders in related technologies, and is applied to the manufacturing, transportation, erection and construction scenarios of simply supported box girders for high-speed railways.

[0040] Reference Figure 1 As shown, Figure 1 It is a flow chart of a method for virtual construction optimization of a simply supported beam bridge based on digital twin technology in one embodiment of the present invention.

[0041] This embodiment provides a virtual construction optimization method for a simply supported beam bridge based on digital twin technology, which includes the following steps:

[0042] Step S1, establishing a BIM model, the BIM model including a simply supported beam bridge BIM model, a beam yard BIM model and an equipment BIM model;

[0043] Step S2, collecting construction information data, and attaching the construction information data to the BIM model, the construction information data including one or more of box girder production data, box girder transportation data, and box girder erection data;

[0044] Step S3: construct a virtual construction system based on digital twin technology, and use the BIM model to monitor and visualize the manufacturing, transportation, and erection processes of the simply supported beam bridge in real time.

[0045] This embodiment provides a virtual construction optimization method for a simply supported beam bridge based on digital twin technology. During the construction process of the simply supported beam bridge, BIM models are established for the relevant simply supported beam bridge structures, beam yards and equipment; and construction information data are attached to the BIM model, so that the construction progress and monitoring related data can be mastered in real time according to the BIM model; finally, a virtual construction system is constructed based on the digital twin technology, and the manufacturing, transportation and erection processes of the simply supported beam bridge are monitored and visualized in real time in combination with the full-line BIM model. The manufacturing, transportation and erection processes of the simply supported beam bridge in the physical world are mapped and interacted with the models in the digital virtual world in real time, realizing the interconnected coordination and intelligent management of the entire process, thereby improving construction accuracy, optimizing construction plans, shortening construction periods, and reducing safety risks. Furthermore, the virtual construction system and the full-line BIM model facilitate auxiliary decision-making, intelligent production and scientific supervision of the construction process of the simply supported beam bridge, providing strong support for the digital transformation and intelligent upgrading of the bridge construction industry.

[0046] Each step is described and explained in detail below.

[0047] The meanings of some nouns are as follows:

[0048] BIM: The definition of BIM by the International BIM Alliance (BuildingSMARTInternational) is:

[0049] BIM is an abbreviation of the English phrase, which stands for three different but interrelated functions.

[0050] Building Information Modeling (BIM) is a business process that generates building information and applies it to the design, construction and operation of a building, allowing stakeholders to access the same information simultaneously through the interoperability of different technology platforms.

[0051] Building Information Model (BIM): It is a digital expression of the physical and functional characteristics of a facility. It can be used as a source of information knowledge shared by relevant stakeholders of the facility and become a reliable basis for decision-making throughout the life cycle of the facility, including planning.

[0052] Building Information Management (BIM): It is the organization and control of business processes by using information in digital models, with the aim of improving the effectiveness of information sharing throughout the life cycle of assets. Its benefits include centralized and intuitive communication, early comparison of options, sustainability, effective design, professional integration, site control, completion data, etc., which can be used to effectively develop processes and models for the entire life cycle of assets from planning to retirement.

[0053] Digital Twin technology: refers to the construction of a virtual model of a physical entity through digital technology, which can conduct all-round, dynamic tracking and simulation prediction of the entity. Digital Twin technology collects, transmits, processes and analyzes data, models and simulates, and builds a digital model in the virtual space that is highly similar to the physical entity. It also monitors, analyzes and optimizes the physical entity through real-time data exchange and analysis.

[0054] Engineering Breakdown Structure (EBS): used to subdivide and manage engineering projects. The main goal of EBS is to break down complex engineering projects into smaller, more manageable parts, so that project activities can be planned, executed, and controlled more effectively. As a hierarchical structure, EBS breaks down engineering projects into multiple subsystems, subtasks, and activities. Each subtask has a clear goal, expected output, required resources, and a planned start and end time, making it easier to understand the overall structure of the project and the relationship between its parts.

[0055] In one embodiment, step S1, establishing a BIM model, includes:

[0056] Step S11, dividing the simply supported beam bridge into multiple units, and establishing a basic model of the simply supported beam bridge with the smallest unit; adding material information and design parameters of the simply supported beam bridge to the basic model of the simply supported beam bridge to form a BIM model of the simply supported beam bridge.

[0057] Step S12: Divide the beam yard used for beam manufacturing into multiple functional areas, and establish beam yard BIM models for each of the functional areas.

[0058] Step S13, establishing a basic equipment model, where the equipment includes one or more of a transport machine, a beam lifting machine, a beam transport vehicle, and a bridge erecting machine; adding attribute information to the basic equipment model to form a BIM model of the equipment.

[0059] Through the above solution, BIM models are established from the simply supported beam bridge to the beam yard and then to the equipment, forming a full-line BIM model, which is convenient for the subsequent connection of construction information data and realizes construction management throughout the entire life cycle.

[0060] Specifically, in the early stage of establishing the BIM model, it is necessary to collect various information required for the design of bridges, large-scale machinery and equipment, and beam yards, including structural drawings, design specifications, geographical locations, environmental data, construction drawings and construction methods, etc., and design planning data for beam yards, including terrain, roads, plants, equipment and other infrastructure. Another example is the design drawings, design parameters, structural materials, manufacturing processes, and on-site environment of large-scale machinery and equipment (handlers, beam hoists, beam transporters, bridge erectors). Commonly used BIM software includes Autodesk Revit, Bentley MicroStation, etc.

[0061] When establishing the foundation model of a simply supported beam bridge, create elevations and axis grids. The coordinate datum uses the coordinate system CGCS2000, the reference ellipsoid, Gaussian projection, and the elevation is modeled using the 1985 National Elevation Datum. The simply supported beam bridge is divided into multiple units such as pile foundation, pile top tie beam, abutment, pier, support, main beam, etc., to ensure that the constructed size, position, and material properties are accurate. When adding the material information and design parameters of the simply supported beam bridge to the foundation model of the simply supported beam bridge, material information such as material type, specification, strength, etc., is convenient for subsequent design, construction, and maintenance management; design parameters such as EBS code, size, weight, load, etc. When adding attribute information to the equipment foundation model, such as material, size, weight, manufacturer, maintenance record, etc.

[0062] In one embodiment, when establishing the basic model of a simply supported beam bridge, a beam body BIM model is established for each simply supported beam, and engineering entity decomposition is performed. According to the engineering entity decomposition (EBS) coding, the construction information data and the beam body BIM model are matched one by one. In other embodiments, the prefabricated beams can also be finely modeled, including the beam body, steel bars, prestressed steel strands and other parts, and steel bar and prestressed pipe collision analysis can be performed to discover design problems in advance and optimize the construction process.

[0063] In one embodiment, the functional area includes one or more of a steel bar processing area, a box beam prefabrication area, a box beam storage area, a beam transport channel, a lifting station, a material storage area, and a beam yard test laboratory.

[0064] Through the above scheme, BIM models are established for each functional area of ​​the beam yard, which serves as a data base to dynamically display the beam manufacturing progress, beam manufacturing position, beam manufacturing process, beam storage status, beam storage position and beam lifting progress in real time.

[0065] In one embodiment, in step S2, the box girder production data includes one or more of the box girder construction plan, box girder construction process data, box girder production materials, personnel information, and design information; the box girder transportation data includes beam shifting data, beam lifting data, and beam transport data; the box girder erection data includes one or more of the beam body information, erection time, erection location, erection quality, and bridge erection machine monitoring and early warning data.

[0066] Specifically, the box girder production data includes the construction process of the box girder, such as steel bar binding, steel bar mold placement, inner mold installation, concrete pouring, pre-tensioning, inner mold removal, initial tensioning, beam shifting, final tensioning, grouting, anchor sealing, beam erection, etc. The start time and end time of the process and the relationship between the beam body and the pedestal; the box girder production data, such as the inspection batch data, test data, tensioning and grouting data, etc. in the box girder production process, are mainly collected and classified by manual data entry. The box girder transportation data includes the beam shifting data, such as the beam shifting number, beam shifting time, beam shifting pedestal position, and transporter monitoring and early warning data; the beam lifting data, such as beam body information, beam lifting time, beam lifting machine monitoring and early warning data; and the beam transportation data, such as beam body information, beam transportation time, beam transportation trajectory, and beam transportation vehicle monitoring and early warning data. The box girder manufacturing and transportation frame data are mainly obtained in real time by installing automated data collection equipment.

[0067] Through the above scheme, sufficient construction information data of the simply supported beam bridge construction process can be collected through automatic collection, manual entry, or a combination of the two methods, with EBS (Engineering System Decomposition) coding link and BIM model as the data base to connect the construction information of the bridge construction process.

[0068] In one embodiment, in step S3, the virtual construction system includes a prefabricated box beam production system for prefabricated beam production management, a large temporary equipment monitoring system for equipment safety management, and a bridge image progress monitoring system for simply supported beam bridge construction progress management.

[0069] Through the above scheme, a virtual construction system is constructed based on digital twin technology and the idea of ​​digital-analog separation, which can accurately schedule and optimize the resources (such as materials, manpower, equipment, etc.) in the construction process of simply supported beam bridges, avoid waste of resources, and reduce construction costs.

[0070] In one embodiment, a prefabricated box beam production system comprises:

[0071] The beam yard electronic sandbox module is configured as follows: based on the digital twin technology, a virtual beam yard is constructed to display the distribution of each functional area of ​​the beam yard, the real beam yard beam making and storage status is linked to the beam yard BIM model in real time, and the current beam yard beam making and storage status is intuitively displayed in combination with the BIM model, and the beam yard video monitoring is embedded in the beam yard BIM model, so that video monitoring of different functional areas can be viewed in real time;

[0072] The beam yard production information module is configured to: display the beam manufacturing and storage information, corresponding processes, and construction time of each pedestal in the beam yard in real time, display the design information and production information in combination with the BIM model, and conduct real-time monitoring and early warning of the operation of the box beam production equipment, such as monitoring of the cutting and roughening robot and the slurry lifting and leveling machine, to ensure the safe operation and production of the equipment;

[0073] The rebar production module is configured to: manage the types and quantities of rebar consumption and the types and quantities of rebar processing, and realize rebar production with fewer people through remote production and processing of rebar;

[0074] The concrete production module is configured to collect and monitor the raw material incoming and consumption information, and concrete production information. It is convenient for dynamic monitoring of the whole process of raw material incoming and consumption, concrete production, etc., and intelligent production control, which improves the production efficiency and control efficiency of the mixing station and realizes the digital, refined and intelligent management of the mixing station.

[0075] Through the above scheme, the prefabricated box girder production system manages the production of prefabricated box girders, collects information on production factors such as main material consumption in the beam yard, labor input, concrete output, beam making information, and equipment management, and assists managers in overall control and decision-making.

[0076] In one embodiment, the large-scale equipment monitoring system includes:

[0077] The handling machine monitoring and early warning module is configured to: monitor the operating status of the handling machine, perform real-time calculation and monitoring and early warning of the structural safety status, and display the structural stress state and deformation in combination with the BIM model to improve the safety control level during the beam moving process in the beam yard;

[0078] The beam hoist monitoring and early warning module is configured to: collect and monitor beam hoist parameters in real time, including one or more of the lifting weight, lifting height, wind speed, temperature, stress, and inclination angle, and display the structural stress state and deformation in combination with the BIM model to ensure the safety and reliability of the beam hoisting process in the beam yard;

[0079] The beam transport vehicle monitoring and early warning module is configured to: collect and monitor beam transport vehicle parameters in real time, including one or more of the following: the main beam inclination angle, driving speed, longitudinal displacement and speed of the beam-carrying trolley, wind speed, and beam transport vehicle position information, to ensure the safety and reliability of the beam transport process;

[0080] The bridge-building machine monitoring and early warning module is configured to: monitor the operating status of the bridge-building machine in real time to prevent safety accidents such as rollover.

[0081] Specifically, sensors can be installed on various large-scale equipment to collect data such as their operating status and environmental parameters, and monitor various parameters such as temperature, humidity, stress, pressure, vibration, deformation, etc. Data from different sources (such as sensors, historical data, manually entered data, etc.) can be integrated into a unified system.

[0082] Through the above solution, the Dalian equipment monitoring system conducts safety management of prefabricated box girder production, monitors the status and safety of the box girder construction process in real time from the entire process of handling, lifting, transporting, and bridging, improves the safety management level of Dalian equipment, and ensures safety and stability during the construction process.

[0083] In one embodiment, the bridge image progress monitoring system includes:

[0084] The visual progress module is configured to: combine the BIM model to assign progress information to the simply supported beam bridges along the entire line, so as to view the progress information of the simply supported beam bridge manufacturing and transportation frames.

[0085] The progress preview module is configured to simulate and display the construction progress of the simply supported beam bridge in combination with the BIM model before construction.

[0086] Specifically, for example, the progress of a simply supported beam bridge can be visualized, and the construction progress information (such as start time, end time, planned progress, current progress, progress ahead of schedule and behind schedule, etc.) can be associated with the components in the BIM model. The completion status of each construction node can be displayed through different colors, transparency or icons of the BIM model to achieve an intuitive display of the progress and reduce misunderstandings and omissions in the process of information transmission. The dynamic simulation function of the BIM software can be used to simulate the construction process of the simply supported beam bridge. Through dynamic simulation and real-time monitoring of the construction progress, potential construction risks can be discovered in a timely manner and measures can be taken to resolve them.

[0087] Through the above scheme, the bridge visual progress monitoring system comprehensively controls the progress of the entire construction process of the manufacturing, transportation and erection of the simply supported box girder to form a simply supported beam bridge. Visualizing the construction process of the bridge before construction facilitates better understanding and planning of the construction process, identification of potential problems and formulation of countermeasures.

[0088] Specifically, in terms of visualization, the virtual construction system first uses 3D visualization software (such as Unity, Unreal Engine, etc.) to convert the BIM model into an interactive 3D scene to display the manufacturing, transportation and erection process of the simply supported beam bridge, as well as the changes in key parameters. The collected construction information data is then visualized in the form of charts, curves, etc. Through data visualization, the performance and status of the simply supported beam bridge at different stages can be intuitively understood.

[0089] For example, for the production visualization of simply supported beam bridges, big data analysis and visualization technology can be used to display key indicators such as production progress, production efficiency, and quality issues in the form of charts, dashboards, etc., making it easier for managers to monitor and make decisions in real time.

[0090] For example, the transportation visualization of simply supported beam bridges can use GIS (geographic information system) technology to accurately plan and optimize the transportation route. Consider factors such as road conditions, traffic flow, and weather conditions to select the best transportation route and plan. Install GPS (global positioning system) and sensors on the transport vehicles to collect information such as the vehicle's position, speed, and acceleration in real time. Create a visualization interface for simply supported beam transportation. Through data analysis, you can click on the beam transport vehicle BIM model to display the beam transport position, view beam transport information, monitor transportation status in real time, and predict transportation time to ensure that the beam arrives at the destination safely. When abnormal conditions occur during transportation (such as speeding, sudden braking, etc.), an early warning signal is automatically issued to remind the driver to pay attention to safety. At the same time, the early warning information can also be pushed to management personnel so that timely measures can be taken to deal with potential safety risks.

[0091] For example, the visualization of the erection of a simply supported beam bridge uses BIM models and virtual construction systems for construction simulation. By simulating the beam erection process under different construction plans and working conditions, the construction difficulty and risk can be evaluated and the construction plan can be optimized. Cameras and sensors are installed at the erection site to collect images and data information during the construction process in real time. The situation at the construction site can be remotely monitored through video monitoring; key indicators such as the position, posture, and stress state of the beam can be monitored in real time through data analysis. Combined with the Internet of Things technology, real-time monitoring and early warning of safety risks during the erection process are carried out. When an abnormal situation is detected (such as beam offset, uneven force, etc.), an early warning signal is automatically issued to remind construction personnel to pay attention to safety and take corresponding safety measures.

[0092] Visualization of the fabrication, transportation and erection of a simply supported beam bridge is a complex and sophisticated process, which involves digital modeling, production progress monitoring, quality control, transportation route planning, transportation status monitoring, safety warning, construction simulation, real-time monitoring and safety monitoring, etc. Through the comprehensive application of these technical means, comprehensive monitoring and visualization of the fabrication, transportation and erection process of a simply supported beam bridge can be achieved, thus improving construction efficiency and quality.

[0093] Through the virtual construction optimization method of simply supported beam bridge based on digital twin technology provided by the embodiment of the present application, on the one hand, quality control is enhanced, and the whole process and all elements of the raw materials, production process, quality inspection and finished beam acceptance of prefabricated components in the production and construction process of simply supported box beams can be monitored in real time for management, deviations can be discovered and corrected in time, and the construction quality of simply supported box beams can be ensured. On the other hand, by simulating various safety risk scenarios in the process of handling, lifting, transporting beams, and erecting beams during the construction of simply supported box beams, safety plans can be formulated in advance to reduce the probability of accidents, monitor and warn potential safety hazards, and improve the level of safety management. It is also possible to achieve comprehensive intelligence and automation in the construction of simply supported box beams through the integrated application of other intelligent construction technologies (such as the Internet of Things, big data, artificial intelligence, etc.).

[0094] The embodiment of the present application also provides a virtual construction optimization system for a simply supported beam bridge based on digital twin technology, which includes:

[0095] The BIM system is configured to: establish a BIM model, the BIM model includes a simply supported beam bridge BIM model, a beam yard BIM model and an equipment BIM model;

[0096] Data collection system: configured to: collect construction information data and attach the construction information data to the BIM model, the construction information data including one or more of box girder production data, box girder transportation data, and box girder erection data;

[0097] The virtual construction system is configured as follows: It is built based on digital twin technology and combines the BIM model to conduct real-time monitoring and visualization of the manufacturing, transportation and erection processes of simply supported beam bridges.

[0098] In the virtual construction optimization system of simply supported beam bridges based on digital twin technology, the functions of each system have been explained in detail in the previous method and will not be repeated here.

[0099] Through the above scheme, the virtual construction system combines with the BIM system to realize the model visualization display of key monitoring parameters such as beam production status, equipment operation status, and structural safety status. It can also realize the visualization of key management parameters such as quality and safety inspection, personnel and equipment statistics, and progress plan analysis, providing convenient retrieval, statistics and analysis, improving production efficiency, improving production quality, and ensuring production safety. Further, the prediction results and data analysis are transformed into specific decision-making suggestions, such as adjusting production parameters, optimizing resource allocation, formulating preventive maintenance plans, etc., to optimize production scheduling, equipment operation, and safety management, to achieve real-time optimization and adjustment of the simple-supported beam bridge system and transportation frame, to upgrade each construction process intelligently, to open up the data flow channel between the systems, and to achieve real-time communication and organizational coordination between the production line and the management level.

[0100] It should be noted that the above-mentioned serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The terms "including" and "having" in the specification and claims of the present application and the above-mentioned drawings and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" and the like are described to distinguish different objects, etc., and do not represent the order of precedence, nor do they limit that "first", "second" and "third" are different types.

[0101] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0102] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0103] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish between different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0104] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A virtual construction optimization method for a simply supported beam bridge based on digital twin technology, characterized in that: It includes the following steps: Establishing a BIM model, wherein the BIM model includes a simply supported beam bridge BIM model, a beam yard BIM model, and an equipment BIM model; Collecting construction information data, and attaching the construction information data to the BIM model, wherein the construction information data includes one or more of box girder production data, box girder transportation data, and box girder erection data; A virtual construction system is constructed based on the digital twin technology, and the manufacturing, transportation and erection processes of the simply supported beam bridge are monitored in real time and visualized in combination with the BIM model.

2. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 1, characterized in that: The establishment of the BIM model includes: Divide the simply supported beam bridge into multiple units, and establish a basic model of the simply supported beam bridge with the smallest unit; add material information and design parameters of the simply supported beam bridge to the basic model of the simply supported beam bridge to form a BIM model of the simply supported beam bridge; Divide the beam yard used for beam manufacturing into multiple functional areas and establish beam yard BIM models for each area; Establish an equipment basic model, wherein the equipment includes one or more of a transporter, a beam lifting machine, a beam transporter, and a bridge erecting machine; add attribute information to the equipment basic model to form a BIM model of the equipment.

3. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 2, characterized in that: When establishing the foundation model of a simply supported beam bridge, a beam body BIM model is established for each simply supported beam, and the engineering entity is decomposed. According to the engineering entity decomposition code, the construction information data and the beam body BIM model are matched one by one.

4. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 2, characterized in that: The functional areas include one or more of a steel bar processing area, a box beam prefabrication area, a box beam storage area, a beam transport channel, a lifting station, a material storage area, and a beam field test laboratory.

5. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 1, characterized in that: The box girder production data includes one or more of the box girder construction plan, box girder construction process data, box girder production materials, personnel information, and design information; the box girder transportation data includes beam shifting data, beam lifting data, and beam transport data; the box girder erection data includes one or more of the beam body information, erection time, erection location, erection quality, and bridge erection machine monitoring and early warning data.

6. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 1, characterized in that: The virtual construction system includes a prefabricated box beam production system for prefabricated beam production management, a large temporary equipment monitoring system for equipment safety management, and a bridge image progress monitoring system for simply supported beam bridge construction progress management.

7. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 6, characterized in that: The prefabricated box beam production system comprises: The beam yard electronic sand table module is configured to: construct a virtual beam yard based on the digital twin technology to display the distribution of each functional area of ​​the beam yard, and display the current beam manufacturing and storage status of the beam yard in combination with the BIM model; The beam yard production information module is configured to: display the beam manufacturing and storage information, corresponding process, and construction time of each pedestal in the beam yard in real time, display the design information and production information in combination with the BIM model, and conduct real-time monitoring and early warning of the operation of the box beam production equipment; The rebar production module is configured to: manage the types and quantities of rebar consumption, types and quantities of rebar processing, and process rebars through remote production; The concrete production module is configured to collect and monitor raw material arrival and consumption information, and concrete production information.

8. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 6, characterized in that: The Dalin equipment monitoring system includes: The handling machine monitoring and early warning module is configured to: monitor the operating status of the handling machine, perform real-time calculation and monitoring and early warning of the structural safety status, and display the structural stress state and deformation status in combination with the BIM model; The beam hoist monitoring and early warning module is configured to: collect and monitor beam hoist parameters in real time, wherein the beam hoist parameters include one or more of lifting weight, lifting height, wind speed, temperature, stress, and inclination angle, and display the stress state and deformation of the structure in combination with the BIM model; The beam transport vehicle monitoring and early warning module is configured to: collect and monitor beam transport vehicle parameters in real time, wherein the beam transport vehicle parameters include one or more of the main beam inclination angle, travel speed, longitudinal displacement and speed of the beam-carrying trolley, wind speed, and beam transport vehicle position information; The bridge-building machine monitoring and early warning module is configured to monitor the operating status of the bridge-building machine in real time.

9. The virtual construction optimization method for a simply supported beam bridge based on digital twin technology according to claim 6, characterized in that: The bridge image progress monitoring system comprises: The visual progress module is configured to: assign progress information to the simply supported beam bridges along the entire line in combination with the BIM model, so as to view the progress information of the control and transportation frames of the simply supported beam bridges. The progress preview module is configured to simulate and display the construction progress of the simply supported beam bridge in combination with the BIM model before construction.

10. A virtual construction optimization system for a simply supported beam bridge based on digital twin technology, characterized in that: It includes: The BIM system is configured to: establish a BIM model, wherein the BIM model includes a simply supported beam bridge BIM model, a beam yard BIM model, and an equipment BIM model; Data collection system: configured to: collect construction information data, and attach the construction information data to the BIM model, wherein the construction information data includes one or more of box girder production data, box girder transportation data, and box girder erection data; The virtual construction system is configured as follows: constructed based on the digital twin technology, and combined with the BIM model to conduct real-time monitoring and visualization of the manufacturing, transportation and erection processes of the simply supported beam bridge.

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