Prefabrication Techniques in Architectural Design

Prefabrication techniques in architectural design primarily refer to the industrial production of building components and their on-site assembly to form prefabricated buildings, with the core being the use of standardized components for efficient construction.

I. Core Component Types of Prefabricated Buildings

The core of prefabricated buildings lies in the industrial production of standardized components, which mainly include the following types:

1. Horizontal Components: Such as prefabricated floor slabs (composite floor slabs) and prestressed composite beams. Composite floor slabs combine a prefabricated layer with a cast-in-place layer, balancing construction efficiency and structural integrity; prestressed composite beams enhance crack resistance through prestressing technology, making them suitable for large-span spaces.
2. Vertical Components: Such as prefabricated walls (sandwich insulation exterior walls) and prefabricated columns. Sandwich insulation exterior walls incorporate the insulation layer between two layers of concrete, addressing the issue of traditional exterior wall insulation being prone to detachment; prefabricated columns are connected through steel bar sleeve grouting, ensuring reliable vertical load transfer.
3. Other Components: Such as prefabricated stairs and balconies, which are precisely controlled in size through factory prefabrication, reducing on-site wet work.

II. Technical Key Points of Prefabricated Buildings

1. Facade Design: It should balance functionality and aesthetics. Create a sense of hierarchy through the diversification of component combinations (such as the splicing of different materials and colors); optimize the rhythm and proportion of the facade by utilizing the modular characteristics of prefabricated components; at the same time, consider the fire and water resistance of components to ensure long-term safety.
2. Floor Plan Design: Based on modular design, unify the dimensions of unit types (such as room width and depth) to facilitate large-scale production of components; reasonably divide functional areas (such as动静分区 (dynamic and static zoning) and traffic flow lines) to improve space utilization; and reserve space for equipment and pipelines to avoid damaging the structure through later chiseling.
3. Prefabrication Design: Emphasize modularity, standardization, and normalization. Scientifically select component performance (such as load-bearing capacity and durability), appearance (such as surface smoothness and texture), and dimensions (in line with modular coordination standards) to reduce installation difficulty; for complex components (such as node connections), use concrete pouring to enhance stability and consider fire and earthquake resistance requirements.

III. Advantages of Prefabricated Buildings

Through industrial production, component standardization is achieved. By adopting assembly methods such as steel bar sleeve grouting and prestressed connections, construction periods can be significantly shortened (30%-50% less than traditional construction) and costs reduced (less waste of labor and materials); at the same time, on-site wet work is reduced, lowering dust and noise pollution, which aligns with the development requirements of green buildings.