Metacomponent-based modeling method for each stage of bridge

Abstract

The invention discloses a modeling method for each stage of a bridge based on meta-components. The method comprises the following steps: constructing a bridge full-life-cycle digital representation description rule based on the meta-components; developing a meta-component model in a construction drawing design stage; performing simplification and recombination on the basis of the meta-component model of the construction drawing design stage, and generating models of a preliminary design stage and a planning stage; carrying out refined expansion on the basis of the meta-component model of the construction drawing design stage, and generating models of a construction stage and an operation stage; and establishing a full-cycle model management system. According to the modeling method for each stage of the bridge based on the meta-components, the full-life-cycle digital representation description rule is constructed, the meta-component models in the construction drawing design stage are developed, effective conversion of models in different stages is achieved, and a full-cycle model management system is established; the problems of low efficiency and the like caused by incomplete information transmission and repeated model creation in the prior art are solved.

Description

Technical Field

[0001] The present invention particularly relates to a bridge modeling method for each stage based on element components. Background Art

[0002] As a vital component of modern transportation infrastructure, bridge engineering involves complex information management and collaborative work across multiple stages of design, construction, and operation and maintenance. With the advancement of computer technology, 3D modeling has been widely used in bridge engineering, particularly during the design phase. 3D modeling can visually display the structure and appearance of bridges, improving design efficiency and quality. However, the full lifecycle management of bridge engineering encompasses not only the design phase but also planning, construction, and operation and maintenance, each with varying requirements for model accuracy and information.

[0003] In traditional bridge modeling methods, models for each stage are typically created independently. For example, during the planning phase, the model primarily focuses on the bridge's overall layout and basic parameters; during the preliminary design phase, the model needs to provide more detailed structural dimensions and technical parameters; and during the construction drawing design phase, the model needs to include detailed structural dimensions, material information, and construction processes. While this phased, independent modeling approach meets the specific needs of each stage to a certain extent, it also brings numerous problems, such as incomplete information transfer and inefficiencies caused by duplicate model creation.

[0004] In recent years, with the development of building information modeling (BIM) technology, the modeling method of bridge engineering has gradually developed towards the direction of full life cycle integration. BIM technology realizes information sharing and collaborative work in various stages such as design, construction, and operation and maintenance by creating a digital model that contains information about the entire life cycle of a construction project. However, the application of existing BIM technology in bridge engineering still has some limitations. On the one hand, the requirements for the sophistication and information richness of BIM models vary greatly at different stages. From the simplified model in the planning stage to the high-precision model in the construction drawing design stage, how to achieve effective model conversion and information transmission between different stages is a key issue. On the other hand, the application of existing BIM technology in the construction stage is relatively weak, especially in terms of construction progress management, quality control and facility management, which lacks effective technical support. Summary of the Invention

[0005] The present invention provides a bridge modeling method for each stage based on component elements to solve the above-mentioned technical problems, specifically adopting the following technical solutions:

[0006] A bridge modeling method for each stage based on component elements includes the following steps:

[0007] Construct digital representation and description rules for the entire bridge life cycle based on meta-components;

[0008] Develop component models for the construction drawing design phase;

[0009] Based on the component model of the construction drawing design stage, it is simplified and reorganized to generate the model of the preliminary design stage and planning stage;

[0010] Based on the component model of the construction drawing design phase, the details are expanded to generate models for the construction phase and operation phase;

[0011] Establish a full-cycle model management system.

[0012] Furthermore, the steps of constructing a digital representation description rule for the entire bridge life cycle based on meta-components include:

[0013] Define the component classification framework and create a multi-level classification system;

[0014] Formulate classification coding rules and component unique identification code rules;

[0015] Parametric definition of geometric features and associated constraints;

[0016] Define engineering properties and design rules;

[0017] Reserve an expansion interface for construction progress and quality acceptance information;

[0018] Determine the geometric accuracy requirements and information completeness requirements for the five stages.

[0019] Furthermore, the multi-level classification system of meta-components includes: first-level superstructure, substructure, bridge deck and ancillary facilities, second-level component categories, third-level component subcategories and fourth-level detailed components.

[0020] Furthermore, the component unique identification code rules include: structure type, component category, component subcategory, detailed structure and serial number;

[0021] The geometric features include: box girder top width, bottom width, beam height and web thickness.

[0022] Furthermore, the associated constraints include: the main beam spans are adjacent along the route direction, the main beam vertically depends on the route, the main beam height is determined by the route elevation, and the main beam is connected to a pier or abutment below;

[0023] The project properties include: concrete strength grade, prestressed steel tendon arrangement and reinforcement configuration table.

[0024] Furthermore, the geometric accuracy requirements and information integrity requirements for the five stages are determined to include:

[0025] The geometric accuracy requirement in the planning stage is a simplified outline (±0.5m), and the information completeness includes load level, design level, structure type and span;

[0026] The geometric accuracy requirements in the preliminary design stage are cross-sectional dimensions (±0.1m), and the information completeness includes detailed structure, material type, and tendon information;

[0027] The geometric accuracy of the construction drawing design stage requires detailed construction (±0.01m), and the information completeness includes reinforcement information, auxiliary details, and steel tendon coordinates;

[0028] During the construction phase, the geometric accuracy requirements include the location of construction joints (±5cm), and the completeness of information includes segment division, construction plan, and maintenance records;

[0029] The geometric accuracy during the operation and maintenance phase requires crack location (±1 cm), and the information integrity includes sensor ID, stress and strain, and environmental data.

[0030] Furthermore, the steps of developing the component model in the construction drawing design phase include:

[0031] Input parameters to generate geometric models;

[0032] Bind project properties;

[0033] Develop standardized data interfaces and perform compliance verification.

[0034] Furthermore, the step of simplifying and reorganizing the component model of the construction drawing design stage to generate the model of the preliminary design and planning stage includes:

[0035] Simplify feature parameters, retain key structural parameters, and remove unnecessary structural details;

[0036] Delete the subsequent stage attributes;

[0037] Clone historical modification records and reproduce them to the current stage model to generate models for the preliminary design stage and planning stage.

[0038] Furthermore, the step of expanding the details based on the component model of the construction drawing design stage to generate the models of the construction stage and the operation stage includes:

[0039] Develop the model splitting function to split the model. After the split, the model is still managed according to the meta-component architecture;

[0040] Supplement feature parameters, add sensor nodes and operation and maintenance attributes;

[0041] Load the 4D progress management interface and reserve the facility management data interface;

[0042] The construction schedule is associated with the split model to generate a 4D construction simulation view. It is connected to the management platform through an interface to access sensor data in real time to form a model of the construction and operation and maintenance stages.

[0043] Furthermore, the steps of establishing a full-cycle model management system include:

[0044] Record design changes to ensure data integrity;

[0045] Establish a phased model conversion and management mechanism;

[0046] Provide a full life cycle traceability view of the bridge 3D model;

[0047] Generate a full-stage timeline view based on a 3D graphics platform to show the model evolution process from planning to operation and maintenance, highlight parameter changes in each stage, and compare differences.

[0048] The benefit of the present invention lies in the provided meta-component-based modeling method for bridges at various stages. By constructing digital representation description rules for the entire life cycle, developing meta-component models for the construction drawing design stage, realizing effective conversion of models at different stages, and establishing a full-cycle model management system, the present invention solves the problems existing in the prior art, such as incomplete information transmission, inefficiency caused by repeated model creation, weak application in the construction stage, and difficulty in full-life cycle collaboration, thus providing an efficient and complete solution for the full life cycle management of bridge projects.

[0049] This method provides a complete and efficient approach to transforming bridge models across all phases. It creatively bases its design on the requirements of the construction drawing design phase, extending its reach across all engineering phases. This approach offers a comprehensive solution for integrating bridge models across all phases, while simultaneously improving modeling efficiency and information integrity. The architecture and sophistication of the baseline components meet the requirements of both the design phase and the planning and preliminary design phases. Repetitive architecture is eliminated, requiring only the deletion of parameter information and model simplification. This approach is more practical and efficient than a progressive development approach. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0051] Figure 1 is a schematic diagram of the bridge modeling method at each stage based on the element component of the present application;

[0052] Figure 2 It is a schematic diagram of the component classification framework of this application. DETAILED DESCRIPTION

[0053] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0054] The entire lifecycle of a bridge engineering project is divided into planning, design, construction, and operation and maintenance phases. The bridge design phase is typically further divided into preliminary design and construction drawing design. Integrating design specifications, standards, information model application standards, and design experience, the data types representing bridge facilities are systematically categorized at both the business stage and the description dimension levels. Specifically, the planning phase describes data such as facility type, design level, location, and basic structural dimensions; the preliminary design phase describes data such as important local dimensions and technical parameters; the construction drawing design phase describes data such as detailed structural dimensions, materials, performance, and process methods; the construction phase describes data such as process acceptance standards, quality acceptance records, and engineering change information; and the operation and maintenance phase describes data such as stress and strain monitoring values, health diagnosis reports, and facility renovation and improvement records. Each phase records and preserves data from the previous phase.

[0055] Analyzing the data characteristics of each stage, the main differences between the bridge information models of each stage are the model completeness, precision and information delivery requirements, while the bridge model architecture hierarchy is relatively fixed. From the planning stage to the preliminary design stage, and then to the construction drawing design stage, it is a process of gradual refinement. In terms of development difficulty, it is more difficult to optimize from a low-precision model to a high-precision model, and it is more operational to simplify from a high-precision model to a low-precision model. In this application, the architectural hierarchy, completeness and precision of the construction drawing design stage with the greatest commonality are used as the benchmark for determining the meta-components of the bridge information model. Based on the meta-components, the design parameters, number of sections, number of key points and design information are reversely simplified to create information models for the preliminary design stage and the scheme stage. Based on the meta-components, the model is forward refined, information is added, and information models for the construction and operation and maintenance stages are created.

[0056] Specifically, if Figure 1The present application shows a method for modeling bridges at various stages based on meta-components, which includes the following steps: S1: Constructing digital representation and description rules for the entire life cycle of bridges based on meta-components. S2: Developing a meta-component model for the construction drawing design stage. S3: Simplifying and reorganizing the meta-component model for the construction drawing design stage to generate models for the preliminary design stage and the planning stage. S4: Refining and expanding the meta-component model for the construction drawing design stage to generate models for the construction stage and the operation stage. S5: Establishing a full-cycle model management system. The present application's method for modeling bridges at various stages based on meta-components solves the problems of incomplete information transmission, inefficiency caused by repeated model creation, weak application in the construction stage, and difficulty in full-life cycle collaboration in the existing technology by constructing digital representation and description rules for the entire life cycle, developing a meta-component model for the construction drawing design stage, realizing effective conversion of models at different stages, and establishing a full-cycle model management system. It provides an efficient and complete solution for the full life cycle management of bridge projects. The specific steps are introduced below.

[0057] S1: Construct digital representation and description rules for the entire life cycle of bridges based on meta-components.

[0058] In the embodiment of the present application, the steps of constructing a digital representation description rule for the entire bridge life cycle based on meta-components include:

[0059] Define the component classification framework and create a multi-level classification system. Figure 2 As shown in the figure, the multi-level classification system of element components includes: the first-level superstructure, substructure, bridge deck and ancillary facilities, the second-level component categories, the third-level component subcategories and the fourth-level detailed components.

[0060] Formulate classification coding rules and component unique identification code rules. In the embodiment of the present application, the component unique identification code rules include: structure type, component category, component subcategory, detailed structure and serial number.

[0061] Parametrically define geometric features and associated constraints. Geometric features include: box girder top width, bottom width, beam height, and web thickness. Constraint rules include: main girder spans must be adjacent along the alignment; main girder vertical orientation must be dependent on the alignment; main girder height must be determined by alignment elevation; and main girder bottoms must be connected to piers or abutments.

[0062] Define project properties and design rules. Project properties include: concrete strength grade, prestressing tendon arrangement, and reinforcement schedule.

[0063] Reserve the construction progress and quality acceptance information expansion interface. Specifically, reserve the construction progress field (planned pouring date) and the quality acceptance field (strength test value)

[0064] Determine the geometric accuracy requirements and information completeness requirements for the five stages.

[0065] In the embodiment of the present application, determining the geometric accuracy requirements and information integrity requirements of the five stages includes:

[0066] The geometric accuracy requirement in the planning stage is a simplified outline (±0.5m), and the information completeness includes load level, design level, structure type and span.

[0067] The geometric accuracy requirements in the preliminary design stage are cross-sectional dimensions (±0.1m), and the information completeness includes detailed structure, material type, and steel tendon information.

[0068] The geometric accuracy requirement during the construction drawing design phase is detailed structure (±0.01m), and the information completeness includes reinforcement information, auxiliary details, and steel tendon coordinates.

[0069] The geometric accuracy requirement during the construction phase is the location of the construction joint (±5cm), and the information completeness includes segment division, construction plan, and maintenance records.

[0070] The geometric accuracy requirement during the operation and maintenance phase is crack location (±1 cm), and the information integrity includes sensor ID, stress and strain, and environmental data.

[0071] S2: Develop the meta-component model for the construction drawing design phase.

[0072] As previously analyzed, the main differences between bridge information models at each stage lie in model completeness, precision, and information delivery requirements. The construction drawing design stage has the greatest commonality. Therefore, in this application, the meta-component model is constructed during the construction drawing design stage.

[0073] In the embodiment of the present application, the steps of developing the component model in the construction drawing design phase include:

[0074] Input parameters to generate geometric models, bind engineering attributes, develop standardized data interfaces, and perform compliance verification. The attribute library, template library, parameter modification records, geometric models, model attributes, and modification records are all stored in the database.

[0075] Specifically, 3D graphics platforms (Revit, MicroStation, EWBIM, etc.) support functions such as generating 3D models from geometric data, model management, data attachment, and material assignment.

[0076] Input parameters such as box girder top width (9m), bottom width (4.5m), beam height (1.8m), web thickness (0.5m), and chamfer width (0.6m) to automatically generate a box girder model in a 3D graphics platform. Generate and attach a unique identification code: SBJG-ZL-BZD-YZL-001, associate information such as concrete strength (C50) and component number with the geometric model, and develop an IFC format data interface.

[0077] S3: Based on the component model of the construction drawing design stage, simplify and reorganize it to generate models for the preliminary design stage and planning stage.

[0078] According to the digital representation description rules of step S1, the construction drawing design stage model (elementary components) in step S2 is used as a benchmark for simplification and reorganization to generate a preliminary design and planning stage model. In the embodiment of the present application, the steps of generating the preliminary design and planning stage model based on the elementary component model of the construction drawing design stage include:

[0079] Simplify feature parameters, retain key structural parameters, and remove unnecessary construction details. Delete attributes from subsequent stages. Clone historical modification records and replicate them in the current stage model to generate models for the preliminary design and planning stages, enabling cross-stage model management. Attribute libraries, template libraries, parameter modification records, geometric models, model attributes, and modification records are all stored in the database.

[0080] Specifically, the reinforcement configuration information and superelevation information in the construction drawing stage were deleted, the pile position coordinate information was deleted, and detailed information such as the number and model of steel bundle arrangement was simplified to "prestressed reinforcement ratio: 2.5%". The "section size modification record" in the construction drawing model was copied to the preliminary design model and marked as "Span Adjustment V1.0".

[0081] The simplified data was used to generate a preliminary design model: structural information such as top width (9m), bottom width (4.5m), beam height (1.8m), web thickness (0.5m), and chamfer width (0.6m) were retained, while detailed information such as reinforcement, steel tendons, and coordinates were deleted.

[0082] The planning stage model was generated using the further simplified data: only the frame dimensions such as span (40m) and top width (9m) and the overall design information such as load level and design level were retained.

[0083] S4: Based on the component model of the construction drawing design stage, it is refined and expanded to generate models of the construction stage and operation stage.

[0084] According to the digital representation description rules of step S1, the construction drawing design stage model (elementary components) in step S2 is used as a benchmark for refinement and expansion to generate construction and operation and maintenance stage models. In the embodiment of the present application, the steps of generating the construction stage and operation stage models based on the elementary component model of the construction drawing design stage include:

[0085] The model splitting function is developed to split the model. After the split, the model is still managed according to the meta-component architecture.

[0086] Supplement feature parameters, add sensor nodes and operation and maintenance attributes.

[0087] Load the 4D progress management interface and reserve the facility management data interface.

[0088] The construction schedule is associated with the split segment model to generate a 4D construction simulation view. It is connected to the management platform through an interface, and sensor data is accessed in real time to form a digital twin model for the construction and operation and maintenance stages, which is directly used for construction briefing, progress control, completion acceptance and operation and maintenance.

[0089] For example, according to the construction plan, a precast beam (SBJG-ZL-BZD-YZL-001) is split into precast segments (SBJG-ZL-BZD-YZL-001-A1 to A5). Each segment inherits the classification and coding rules of the original component (Structural Type: Superstructure; Major Component Category: Main Beam; Detailed Structure: Precast Box Girder) to ensure model hierarchical consistency. Additional construction attributes include: Segment A1 Casting Date (2025-01-01), Segment Hoisting Sequence: A1 → A2 → A3 → A4 → A, Steel Tensioning Technique: Pre-tensioning, Tensioning at Both Ends (Tensioning Force: 1500kN), Concrete Acceptance Strength: C50 (Testing Permissible Deviation ±2MPa), etc.

[0090] The construction schedule is linked to the segment model, and a dynamic view is generated in the construction management platform to display the real-time progress of segment lifting, tensioning and other processes, which is used for construction briefing, progress monitoring and on-site quality inspections.

[0091] In the operation and maintenance phase model, sensors are added to each segment, and the data is connected to the operation and maintenance management system. The sensor data is dynamically displayed to achieve structural health monitoring, preventive maintenance, and life prediction.

[0092] S5: Establish a full-cycle model management system.

[0093] In the embodiment of the present application, the steps of establishing a full-cycle model management system include:

[0094] Record design changes and ensure data integrity. Establish a phased model conversion and management mechanism. Provide a traceable view of the entire bridge 3D model lifecycle. Generate a full-stage timeline view based on the 3D graphics platform, showing the model's evolution from planning to operation and maintenance, highlighting parameter changes at each stage and comparing differences.

[0095] The purpose of this application is to provide a complete and efficient method for converting models of bridges at all stages. It creatively uses the requirements of the construction drawing design stage as a benchmark for component design, extends coverage to all stages of the project, and provides a solution for the integration of models of bridges at all stages, while improving modeling efficiency and model information integrity. The architecture and precision of the baseline component can meet the needs of the design stage as well as the needs of the planning and preliminary design stages. There is no need for repetitive architecture. Only parameter information needs to be deleted and the model needs to be simplified. It is more operational and more efficient than the development model from simple to difficult. The construction stage model can be further split based on the precision of the component, which is more flexible and meets the actual needs of the project. There is no need for repeated modeling in the construction stage, which solves the problem of model separation between the design and construction stages, ensures the continuity of data, and improves work efficiency throughout the life cycle.

[0096] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of the present invention.

Claims

1. A bridge modeling method based on component parts at each stage, characterized in that: The following steps are involved: Construct digital representation and description rules for the entire bridge life cycle based on meta-components; Develop component models for the construction drawing design phase; Based on the component model of the construction drawing design stage, it is simplified and reorganized to generate the model of the preliminary design stage and planning stage; Based on the component model of the construction drawing design phase, the details are expanded to generate models for the construction phase and operation phase; Establish a full-cycle model management system.

2. The bridge modeling method based on component parts at each stage according to claim 1 is characterized in that: The steps of constructing a digital representation description rule for the entire life cycle of a bridge based on meta-components include: Define the component classification framework and create a multi-level classification system; Formulate classification coding rules and component unique identification code rules; Parametric definition of geometric features and associated constraints; Define engineering properties and design rules; Reserve an expansion interface for construction progress and quality acceptance information; Determine the geometric accuracy requirements and information completeness requirements for the five stages.

3. The bridge modeling method based on component parts at each stage according to claim 2 is characterized in that: The multi-level classification system of meta-components includes: first-level superstructure, substructure, bridge deck and auxiliary facilities, second-level component categories, third-level component subcategories and fourth-level detailed components.

4. The bridge modeling method based on component parts at each stage according to claim 2 is characterized in that: The unique component identification code rules include: structure type, component category, component subcategory, detailed structure and serial number; The geometric features include: box girder top width, bottom width, beam height and web thickness.

5. The bridge modeling method based on component parts at each stage according to claim 2 is characterized in that: The associated constraints include: the main beam spans are adjacent along the route direction, the main beam vertically depends on the route, the main beam height is determined by the route elevation, and the main beam is connected to the pier or abutment below; The project properties include: concrete strength grade, prestressed steel tendon arrangement and reinforcement configuration table.

6. The bridge modeling method based on component parts at each stage according to claim 2 is characterized in that: Determine the geometric accuracy requirements and information integrity requirements for the five stages including: The geometric accuracy requirement in the planning stage is a simplified outline (±0.5m), and the information completeness includes load level, design level, structure type and span; The geometric accuracy requirements in the preliminary design stage are cross-sectional dimensions (±0.1m), and the information completeness includes detailed structure, material type, and tendon information; The geometric accuracy of the construction drawing design stage requires detailed construction (±0.01m), and the information completeness includes reinforcement information, auxiliary details, and steel tendon coordinates; During the construction phase, the geometric accuracy requirements include the location of construction joints (±5cm), and the completeness of information includes segment division, construction plan, and maintenance records; The geometric accuracy during the operation and maintenance phase requires crack location (±1 cm), and the information integrity includes sensor ID, stress and strain, and environmental data.

7. The bridge modeling method based on component parts at each stage according to claim 1 is characterized in that: The steps of developing the component model in the construction drawing design stage include: Input parameters to generate geometric models; Bind project properties; Develop standardized data interfaces and perform compliance verification.

8. The bridge modeling method based on component parts at each stage according to claim 1 is characterized in that: The steps of simplifying and reorganizing the component models of the construction drawing design stage to generate models of the preliminary design stage and the planning stage include: Simplify feature parameters, retain key structural parameters, and remove unnecessary structural details; Delete the subsequent stage attributes; Clone historical modification records and reproduce them to the current stage model to generate models for the preliminary design stage and planning stage.

9. The bridge modeling method based on component parts at each stage according to claim 8 is characterized in that: The steps of refining and expanding the component model of the construction drawing design stage to generate models for the construction stage and the operation stage include: Develop the model splitting function to split the model. After the split, the model is still managed according to the meta-component architecture; Supplement feature parameters, add sensor nodes and operation and maintenance attributes; Load the 4D progress management interface and reserve the facility management data interface; The construction schedule is associated with the split model to generate a 4D construction simulation view. It is connected to the management platform through an interface to access sensor data in real time to form a model of the construction and operation and maintenance stages.

10. The bridge modeling method based on component parts at each stage according to claim 1 is characterized in that: The steps of establishing a full-cycle model management system include: Record design changes to ensure data integrity; Establish a phased model conversion and management mechanism; Provide a full life cycle traceability view of the bridge 3D model; Generate a full-stage timeline view based on a 3D graphics platform to show the model evolution process from planning to operation and maintenance, highlight parameter changes in each stage, and compare differences.

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