Prefabricated Concrete Structure Houses

Prefabricated concrete structure houses are a form of architecture where components are industrially produced and assembled on-site. They are characterized by high efficiency, environmental friendliness, and rapid construction, with main types including panel, box, and frame assembly types. The technological development has undergone multiple stages, with significant export growth in recent years.

Construction Methods and Procedures

Prefabricated concrete structure houses adopt a combination of industrial production and on-site assembly. Their construction is divided into two stages: factory-prefabricated components (such as beams, slabs, walls, and columns) and on-site installation. The specific procedures include design, manufacturing, transportation, installation, and decoration, with components combined into an overall structure using machinery such as cranes.

Core Characteristics

1. Industrial Production: Components are standardized and produced in a stable environment with a high degree of mechanization and strict quality inspection, ensuring a high quality assurance rate.
2. Convenient Construction: Reduces formwork and cast-in-place operations, with prefabricated floor slabs requiring no support, reducing the amount of wet work, which is beneficial for environmental protection and minimizing disturbance to residents.
3. Rapid Construction Speed: High efficiency in on-site assembly with minimal impact on surrounding life and work, making it particularly suitable for densely populated urban areas.

Main Types

1. Panel Assembly Type: Centered around prefabricated wall panels and floor slabs, it expands usable area but has limited design flexibility.
2. Box Assembly Type: Combines prefabricated functional units (such as kitchens and bathrooms), increasing construction speed by 50%-70%, but requiring high transportation and lifting equipment.
3. Frame Assembly Type: Adopts prefabricated frame structures, suitable for high-rise buildings, with strong structural stability.
   Additionally, modular architecture, as a more integrated model, further enhances construction efficiency.

Technological Development History

China's prefabricated concrete technology began in the 1950s, initially used for factory buildings and residential houses; in the 1970s, technical systems such as large panel structures and box structures were formed; in the 1980s, development stagnated due to cost and quality issues; after the 21st century, companies like Vanke developed prefabricated shear wall residential systems and applied prestressed prefabricated frame technology in projects such as Nanjing Jindi Yufang, promoting technological recovery.

Export Status

In recent years, China's prefabricated house exports have grown significantly. In the first four months of 2026, Guangzhou Customs exported 1.4 billion yuan worth of portable houses, a year-on-year increase of 38.1%; in the first quarter of 2024, the national export growth rate of prefabricated buildings reached 45%, mainly sold overseas, reflecting international market recognition of China's industrialized building products.