Technical Planning
Technical planning is essential for prefabricated modular buildings. Design teams must thoroughly understand the project’s external conditions, budget constraints, industrialization objectives, construction scale, and overall project positioning. By improving the standardization process of prefabricated components and maintaining close communication with the construction team, an appropriate technical implementation plan can be established. This plan serves as a crucial reference for designing prefabricated modular buildings.
Scientific Separation
Achieving standardization hinges on the scientific disassembly of components in prefabricated housing. This process affects building functions, facades, structural stress, component load-bearing capacity, and overall project costs. Components are primarily categorized into vertical, horizontal, and non-load-bearing elements based on their functions and forces. The disassembly process considers five key factors: proper stress distribution, production requirements, transportation and lifting needs, reinforcement structure demands, connection and installation criteria, and standardized design principles. Ultimately, this approach aims for “fewer specifications, more combinations.”
Component Processing Drawing Design
Prefabricated component manufacturers and design teams should collaborate closely when creating processing drawings for modular building components. Architectural professionals provide the necessary types and dimensions of prefabricated parts based on project requirements. Besides accurately positioning mechanical and electrical pipelines and openings for doors and windows, the drawings must also account for production and transportation logistics. This includes reserving embedded holes and hooks for installing fixed and temporary facilities on-site.
Prefabricated Component Design
Designing prefabricated components requires adhering to modularity and standardization principles. This minimizes component variety, ensures precision and uniformity, and helps reduce project costs. For unique elements like lowered slabs, irregular shapes, or multiple openings, cast-in-place construction may be preferred. This approach considers the local capacity for lifting, transportation, and production. Additionally, prefabricated components must offer strong fire resistance and durability. Safety, manufacturability, and ease of installation should be prioritized throughout the design process.
Structural Node Design
Optimizing the design of structural nodes is critical in prefabricated modular buildings. Materials and joints—especially around door and window openings—must have sufficient waterproofing and meet the building’s durability, decoration, and mechanical performance requirements. Design adjustments should consider local climate and project-specific conditions to fulfill energy efficiency and waterproofing standards. Vertical joints in exterior wall panels should be designed with a combination of structural and material waterproofing methods, and joint widths should accommodate environmental factors like seismic activity, wind loads, and thermal expansion.
Processing Connection Nodes
Key considerations for connection nodes focus on external insulation and waterproofing. Sandwich-style exterior wall panels consist of an inner concrete load-bearing layer, a middle insulation layer, and an outer concrete protective layer. Connectors integrate the inner and outer concrete layers, ensuring stable insulation performance and improving fire resistance. Waterproofing is especially important at panel joints: vertical joints use dual waterproofing structures combining structural and material methods, while horizontal joints employ similar combined waterproofing techniques.
BIM Full Industry Chain Application
Building Information Modeling (BIM) software can effectively detect all potential clashes between pipelines and civil engineering elements, allowing designers to make real-time adjustments and virtually eliminate pipeline conflicts. Integrating BIM with industrialized residential systems enhances project management and operational efficiency, optimizes resource utilization, reduces costs, and improves overall design and construction quality.
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