Design of Prefabricated Concrete Houses
The design of prefabricated concrete houses revolves around standardization, modularization, and practicality, while also taking into account safety, economy, environmental protection, and flexibility. The core design concepts are as follows:
1. Foundation Design: Ensuring Stability and Safety
The foundation is the core of a house's stability, and its design requires a comprehensive assessment of soil conditions, geological structure, and wind loads. For example, pile foundations or raft foundations are needed in soft soil areas to enhance load-bearing capacity; in areas with strong winds, increasing the foundation depth or expanding the foundation area is necessary to resist wind loads and prevent structural overturning. Foundation design must strictly adhere to geological survey reports to ensure coordination with the superstructure.
2. Structural Design: Optimizing the Load-Bearing System
Structural design needs to balance self-weight, loads, and material properties. It is recommended to adopt a full-frame shear wall structure, which is cast in one piece using molds to form an integrated load-bearing system, significantly improving compressive strength. For example, the combination of C35 concrete and Φ8-Φ14 threaded steel bars can enhance the structure's durability and seismic performance. Structural design should also consider modular splicing requirements, with reserved connection nodes to ensure uniform overall stress distribution.
3. Modular Design: Enhancing Efficiency and Flexibility
Modularization is the core advantage of prefabricated houses. By breaking down the building into standardized modules (such as walls, floors, and stairs), industrial precision manufacturing can be achieved. For example, the E-MIC system adopts a “one-in-every-two” arrangement, reducing module usage by 30%-40% while increasing the usable floor area and construction speed. Module design requires unified dimensions and interface standards to facilitate transportation, assembly, and future modifications.
4. Material and Connection Technology: Ensuring Quality and Safety
Material selection must meet environmental protection, durability, and high-strength requirements. For example, the combination of high-strength concrete (such as C35) and threaded steel bars can improve structural compressive strength; flexible connection technologies (such as prestressed bolts + welded steel plates) can enhance wind and seismic resistance, with a single-point tensile force of up to 20 tons, a wind resistance rating of 12, and a seismic fortification intensity of 7-9 degrees. Connection nodes must undergo mechanical verification to ensure coordinated stress distribution among modules.
5. Interior Design and Performance Optimization: Balancing Aesthetics and Practicality
Interior design should coordinate with module dimensions to optimize floor plan layout and facade styling. For example, using prefabricated components (such as balconies and air conditioning panels) combined with color and texture variations can enhance design diversity while ensuring adequate ventilation and natural light. In terms of performance optimization, the spaced arrangement of modules (such as in the E-MIC system) reduces construction costs and cycles, improves spatial flexibility, and achieves a balance between economy and environmental protection.
