Large Prefabricated Houses

Large prefabricated houses are a form of construction that involves industrial production of building components and on-site assembly, encompassing various technical systems and offering significant technological advantages and broad market prospects.

I. Technical Systems and Core Components Large prefabricated houses employ technical systems such as panel assembly, box assembly, and frame assembly. Core components include prefabricated wall panels, floor slabs, beams, and columns. Modular design is a key feature, with components manufactured in factories using robots and automated production lines, achieving precision control within 1-2 millimeters (e.g., the CSCEC Steel Structure Modular Intelligent Production Line produces 50 complete boxes daily). Typical application scenarios include large-scale construction projects such as high-rise residential buildings, hotels, and hospitals. For example, the Shenzhen Longgang affordable housing project was assembled from 6,028 concrete modules, accommodating over 2,000 households.

II. Technical Characteristics and Advantages

1. Efficient and Precise Industrial Production: Steel structure or concrete modular technology enables standardized production of components. The CSCEC Hailong Concrete MiC Production Line has an annual delivery capacity of 20,000-30,000 modules, reducing construction periods by over 60%.
2. Rapid and Environmentally Friendly On-Site Assembly: After modules are transported to the site, they are quickly assembled using equipment such as tower cranes. In a Shanghai affordable housing project, the completion time for five nearly 100-meter-high buildings was reduced from 2.5-3 years to 1 year, with on-site labor reduced by about 50%. Factory prefabrication reduces construction waste by over 70% and significantly lowers noise and dust pollution.
3. Controllable Quality and Strong Earthquake Resistance: Digital control ensures the quality of concealed works, with inspection robots capable of intercepting millimeter-level errors. Steel-concrete integrated pouring (e.g., CMC composite modules) enhances earthquake resistance, reducing construction periods by 30% compared to traditional methods.

III. Typical Cases and Market Expansion Domestic cases include the Nanjing Jindi Yufang project, which adopted a prestressed prefabricated concrete assembled integral frame structural system. In terms of overseas exports, in the first four months of 2026, the Guangzhou Customs district exported movable houses worth 1.4 billion yuan (a 38.1% year-on-year increase), and the Shenzhen port exported 1.68 billion yuan worth (a 19.6% year-on-year increase). Products are exported to Australia, North America, the Middle East, and other regions for use in hotels, apartments, and other scenarios.

IV. Technical Routes and Policy Support In China, prefabricated houses mainly use steel structures and concrete: steel structures are lightweight and suitable for ocean transportation and high-rise buildings; concrete is closer to traditional living experiences and has high acceptance in the domestic market. Regions such as Fujian Province have established industrial bases through policy support to promote technology popularization. It is predicted that the global modular construction market will exceed $142.8 billion by 2030, with Chinese companies' industrial standards, digital precision, and automation efficiency becoming core elements of global competitiveness.