A method for collaborative deepening design of a heavy steel structure plant of a shipyard in an EPC mode

Abstract

The application discloses a kind of EPC mode under shipyard heavy steel structure factory building collaborative deepening design method, is divided into main design, deepening design, construction organization design, maximum degree utilizes main design achievement, first construction drawing design stage carries out main structure modeling;Then based on Revit model import deepening design software in as subsequent modeling reference line, in deepening software, the entity model of main structure is built, and node is built based on node library component and parameterized custom node;Collaborative three-dimensional review is carried out to deepening model, and is imported into Revit software in IFC format to carry out electromechanical joint modeling;Reasonable component segmentation is carried out, and model component setting is adjusted;Custom deepening graph frame is used to adjust graph, graph, and output technical achievement;Release deepening technical achievement, guide construction.The application effectively collaborates main design, deepening design, production, transportation, installation and other construction organizations, solves the problems of high on-site rework rate, low construction efficiency and the like.

Description

Technical Field

[0001] This invention relates to the field of construction technology for steel structure workshops in industrial buildings, and in particular to a collaborative detailed design method for heavy steel structure workshops in shipyards under the EPC model. Background Technology

[0002] Shipyard heavy steel structure workshops are characterized by large spans, high load-bearing capacity, multiple professional involvement, and tight production schedules. As the main body of the workshop, the steel structure lattice columns, inter-column supports, crane beams, steel roof trusses, and space frames are relatively complex with a large amount of node detailing. It is necessary to conduct detailed modeling in advance, carry out collision checks on the main structure, and check the electromechanical model integration to avoid rework caused by mid-term changes, avoid affecting production, improve project quality, and reduce project costs.

[0003] Project general contracting (EPC) refers to a construction project organization and implementation method in which a contractor, according to a contract signed with a client, undertakes all stages of engineering construction, including design, procurement, construction, or design and construction, and is fully responsible for the project's quality, safety, schedule, and cost. The detailed design stage is an essential stage for enhancing EPC capabilities during the transition from construction general contracting to project general contracting. It directly relates to material procurement, processing, transportation, and installation. Under the "grand design" concept of EPC, detailed design builds upon the main design and initiates the construction organization design, serving as a crucial tool for improving quality and efficiency.

[0004] Traditional models are mostly general contracting management models, which lack depth in detailed design management. They are often dominated by steel structure professional contractors, making it difficult for the general contractor to effectively control the process. There is no overall coordination of main design, detailed design, fabrication, transportation, installation and construction organization, resulting in a lot of on-site rework and affecting construction quality and progress.

[0005] To address the aforementioned issues, a collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model is required. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model, thereby solving the aforementioned technical problems.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] This invention provides a collaborative detailed design method for heavy steel structure workshops in shipyards under the EPC model. This method divides the design content into main design, detailed design, and construction organization design.

[0009] The main design involves modeling the main structure during the construction drawing design phase.

[0010] Detailed design includes the following steps:

[0011] a. Import the reference lines from Revit into the detailed design software as reference lines for subsequent modeling, and build the main model in the detailed design software based on the reference lines;

[0012] b. Build the node model using node library components and parameterized node definitions;

[0013] c. After reviewing and modifying the detailed model in 3D, import the detailed model subsystems into Revit software in IFC file format for MEP modeling, check for errors, omissions and collisions, and publish the collaborative checklist and the summary table of each unit inspection.

[0014] d. Revise and refine the model based on the inspection results;

[0015] Construction organization design includes the following steps:

[0016] e. Divide the components into segments and adjust the model component settings;

[0017] f. Conduct detailed design of temporary structures based on processing, transportation, and installation process requirements;

[0018] g. Customize and refine the drawing frame, use the refined model to adjust and output drawings, and output the refined technical results;

[0019] h. Release in-depth technical achievements in batches according to each system of the factory building to guide construction.

[0020] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by this invention, the main structure includes steel columns, inter-column supports, crane beam system, roof truss system, steel platform, and steel staircase.

[0021] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by this invention, the main design is based on Revit for forward design or accompanying modeling during the construction drawing design stage: while carrying out the main design, Revit software is used to build the model, and the output includes two-dimensional drawings and three-dimensional models; the BIM model and construction drawings are collaboratively and interactively checked to ensure consistency between the drawings and the model.

[0022] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by this invention, the modeling base point is determined based on the architectural and structural characteristics of the shipyard heavy steel structure workshop. According to the architectural grid file, a unified selection is made so that the origin of the detailed model is consistent with the origin of the Revit model.

[0023] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by this invention, the detailed design software mentioned in step a is Tekla detailed design software.

[0024] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by the present invention, the electromechanical assembly in step c includes water supply and drainage, electrical, heating, power pipelines, process, and circulating gas pipeline layout.

[0025] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by this invention, the component segmentation in step e is based on the following factors: the lifting capacity of the processing plant workshop, the size range of sandblasting and coating processing, transportation capacity, on-site installation methods and lifting equipment capacity, process welding and bolting space requirements, and member stress requirements.

[0026] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by the present invention, the temporary structure in step f includes temporary jigs, lifting lugs, on-site splicing structures, and anchoring structures.

[0027] Furthermore, in the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model provided by this invention, the detailed technical results output in step g include detailed design description, layout drawing, component drawing, drawing list, and weld design general drawing.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model of this invention is based on the concept of large-scale design and is divided into main design, detailed design and construction organization design. It makes the most of the results of the main design and effectively coordinates the construction organization of main design, detailed design, fabrication, transportation and installation. It solves problems such as high on-site rework rate and low construction efficiency and has good application prospects. Attached Figure Description

[0030] Figure 1 This is a flowchart of the collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model in this embodiment of the invention. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] Please see Figure 1This embodiment provides a collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model. Based on a comprehensive design concept, the design content is divided into main design, detailed design, and construction organization design. At the organizational structure level of this method, these design structures are respectively organized into design teams, with specific responsible persons divided into design professional leaders, BIM professional leaders, detailed design professional leaders, and construction organization professional leaders.

[0033] The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model in this embodiment includes the following steps:

[0034] S1. Analyze the architectural and structural features of the shipyard's heavy steel structure workshop, determine the modeling base point, and make a unified selection based on the architectural grid file to ensure that the origin of the detailed design model is consistent with the Revit model, which facilitates the later interactive use of the model.

[0035] S2. During the construction drawing design phase, firstly, while the design professional leader organizes the design personnel to carry out the main structure design, the BIM professional leader organizes the modeling personnel to build the main structure model using Revit software.

[0036] The main structure includes steel columns, inter-column bracing, crane beam system (crane beams, brake plates, brake trusses), roof truss system (tube trusses, horizontal bracing, vertical bracing, steel space frame), steel platforms, steel staircases, and other structures. The main structure model, excluding nodes, must reach a LOD400 level of detail to be suitable for importing detailed models as a modeling reference.

[0037] The main design outputs include two-dimensional drawings and three-dimensional models.

[0038] Next, the BIM model and construction drawings are checked against each other. Designers and BIM modelers collaborate to verify the consistency between the model and the drawings. After verification, the Revit 3D model and construction drawings are published, and the model and design are handed over to the detailed design personnel.

[0039] S3. The project leader organizes the detailed design team to allocate detailed design resources and set up collaborative modeling. The priority is to build models of the main buildings first, followed by smaller buildings.

[0040] S4. First, the detailed designer imports the Revit model into the detailed design software (Tekla in this example) as reference lines for subsequent modeling. Since Revit and detailed design software are different modeling software, there is a data barrier when importing model information. In this example, the model is displayed as reference lines in the detailed design software.

[0041] S5. Establish the axis lines by switching to the plan and elevation views respectively, and verify the accuracy of the axis lines.

[0042] S6. In the detailed design software, verify the positioning dimensions of the imported reference lines, and build the main model based on the reference lines. Nodes are built using node library components and parametrically defined nodes. The specific steps are as follows:

[0043] 1) First, analyze the layout, type and number of lattice columns, and prioritize the steel columns with a larger number of lattice columns for the first model building.

[0044] 2) Construct the lattice column model, sequentially building the lower column main members, tie rods, column base nodes, platform layers, crane beam support layers, brake plate structural layers, shoulder beam layers, upper columns, upper column top nodes, and other nodes. Add welds between parts, generate components, and verify the dimensions such as the spacing of the main members, the arrangement of tie rods, and the elevation of each platform layer.

[0045] 3) Use the beam command to build the inter-column support model, and use auxiliary lines, auxiliary points, polygon plate commands, cutting commands, and joining commands to create node plates and process nodes.

[0046] 4) Crane beam system construction: The main beam, vertical stiffeners, horizontal stiffeners, end plate nodes, flange rail fixing bolt hole opening, LB plate, CB plate, brake plate, horizontal corner brace, weld addition and component generation are constructed in sequence.

[0047] 5) Steel roof truss construction, following these steps: switch to the design elevation view, create the lower chord, selectively copy (positioned by end distance) to create the upper chord, adjust the lateral slope of the upper chord, create the upper chord plane connecting rod, create the web members, and process the nodes.

[0048] 6) The construction of steel platform and steel staircase auxiliary systems can be carried out using Tekla software components such as "Joint Node", "Vertical Connection Plate with Stiffening Ribs", "Welded Beam to Beam", "Full Depth", and "JP Plate Beam Connection Plate" to complete the construction of node models such as main beam splicing nodes, secondary beam H-beam connection nodes, channel steel to H-beam connection nodes, angle steel to H-beam connection nodes, channel steel to channel steel connection nodes, beam stiffening nodes, and beam end plates.

[0049] S7. The detailed model is released. Then, the BIM and design leads collaborate to conduct a 3D review of the detailed model. Following this, modifications are made to the model based on the feedback from the 3D review. After the 3D review and modification process is completed, the detailed model subsystems are converted into IFC files.

[0050] S8. Import the detailed model subsystems into Revit software in IFC format for electromechanical modeling, and arrange the water supply and drainage, electrical, heating, power pipelines, process and circulating gas pipelines, etc. Check for errors, omissions and collisions, and publish collaborative checklists and individual unit check summary tables.

[0051] S9. Revise and deepen the model based on the inspection results.

[0052] S10. The person in charge of construction organization organizes the construction organization design. First, based on the lifting capacity of the processing plant workshop, the size range of sandblasting and coating processing, transportation capacity, on-site installation methods and lifting equipment capacity, process welding and bolting space requirements, and member stress requirements, the steel columns, steel roof trusses, steel beams, steel brackets and other components are segmented, and the model is adjusted to set up the components.

[0053] S11. Based on the construction organization, processing, transportation, and installation process requirements, conduct detailed design of temporary structures such as temporary frames, lifting lugs, on-site splicing, and anchoring.

[0054] S12. Customize and refine the drawing frame, use the refined model to adjust and output drawings, and output technical results such as refined design specifications, layout drawings, component drawings, drawing list, and weld design general drawings for design review and to propose modification opinions.

[0055] S13. Revise and refine the model based on the design review comments, and output technical results such as detailed design specifications, layout drawings, component drawings, drawing list, and weld design drawings.

[0056] S14. Release in-depth technical achievements in batches according to each system of the factory building to guide construction.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, it is obvious that the described embodiments are merely exemplary embodiments of the present invention, and not all embodiments. For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A collaborative detailed design method for heavy steel structure workshops in shipyards under the EPC model, characterized in that: The design content is divided into main design, detailed design, and construction organization design. The main design is carried out during the construction drawing design stage by modeling the main structure. The detailed design includes the following steps: a. Import the model into the Revit software as a reference line for subsequent modeling, and build the main model in the software based on the reference line. b. Nodes are built using node library components and parameterized node definitions; c. After reviewing and modifying the detailed model in 3D, import the detailed model subsystems into Revit software in IFC file format for MEP modeling, check for errors, omissions and collisions, and publish the collaborative checklist and the summary table of each unit inspection. d. Revise and refine the model based on the inspection results; The construction organization design includes the following steps: e. Divide the components into segments and adjust the model component settings; f. Conduct detailed design of temporary structures based on processing, transportation, and installation process requirements; g. Customize and refine the drawing frame, use the refined model to adjust and output drawings, and output the refined technical results; h. Release in-depth technical achievements in batches according to each system of the factory building to guide construction.

2. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The main structure includes steel columns, inter-column bracing, crane beam system, roof truss system, steel platform, and steel staircase.

3. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The main design is based on Revit for forward design or accompanying modeling during the construction drawing design stage: while carrying out the main design, Revit software is used to build the model, and the output includes two-dimensional drawings and three-dimensional models.

4. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 3, characterized in that: in, Based on the architectural and structural characteristics of the shipyard's heavy steel structure workshop, the modeling base point was determined. According to the architectural grid file, a unified selection was made to ensure that the origin of the detailed model is consistent with the origin of the Revit model.

5. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The detailed design software mentioned in step a is Tekla detailed design software.

6. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The electromechanical assembly described in step c includes water supply and drainage, electrical, heating, power pipelines, process, and circulating gas pipeline layout.

7. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The component segmentation criteria in step e include the lifting capacity of the processing plant workshop, the size range of sandblasting and coating processing, transportation capacity, on-site installation methods and lifting equipment capacity, process welding and bolting space requirements, and member stress requirements.

8. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The temporary structures in step f include temporary jigs, lifting lugs, on-site splicing structures, and anchoring structures.

9. The collaborative detailed design method for shipyard heavy steel structure workshops under the EPC model as described in claim 1, characterized in that: in, The detailed technical deliverables output in step g include detailed design specifications, layout drawings, component drawings, drawing list, and weld design general drawings.

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