Finished Prefabricated House Frame

The finished prefabricated house frame is a core component of prefabricated assembled buildings, achieving efficient, environmentally friendly, and flexible construction solutions through industrial production and modular design.

I. Frame Types and Composition

Finished prefabricated house frames are mainly divided into three categories:

1. Panel-assembled Frames: These frames use prefabricated wall panels and floor slabs as core components, forming a structural system through on-site assembly. For example, the Nanjing Jindi Yufang project employs a prestressed prefabricated concrete assembled integral frame to achieve rapid construction of high-rise buildings. Although the design flexibility of such frames is limited, the use of standardized components can expand the usable area.
2. Box-assembled Frames: These frames are directly composed of prefabricated functional units (such as room modules), with construction speeds 50%-70% faster than traditional methods. However, they require high-precision transportation and lifting equipment. Modular buildings represent an integrated upgrade model of box-assembled frames, suitable for large-scale rapid deployment scenarios.
3. Frame Structure Residential Frames: These frames use reinforced concrete beams, slabs, and columns as load-bearing skeletons, combined with lightweight partition walls (such as aerated concrete) to divide spaces. Their non-load-bearing walls can be flexibly modified to meet personalized needs, but their horizontal load-bearing capacity is lower than that of shear wall structures, making them more commonly used in high-rise residential and commercial spaces.

II. Technical Advantages

1. Efficiency Improvement: Prefabricated components reduce on-site wet operations and shorten construction periods. For example, the A-shaped house frame can complete the main structure within 72 hours using prefabricated kits, with significant improvements in construction speed for box-assembled frames.
2. Environmental Protection and Quality: Industrial production reduces construction waste by more than 70% (as demonstrated by the Fujian Provincial Industrial Base case), while ensuring component precision and reducing the risk of quality defects.
3. Flexibility: The non-load-bearing walls of frame structure residences can be modified, panel-assembled frames optimize space utilization through standardized components, and box-assembled frames support rapid reorganization of functional units.

III. Application Scenarios

1. Residential Construction: Enterprises such as Vanke Group have applied assembled shear wall systems to high-rise residential buildings, while frame structure residences are widely used in scenarios requiring sound insulation and thermal insulation, such as hotel guest rooms and KTV private rooms.
2. Temporary and Rapid Deployment: Prefabricated frame kits support the rapid construction of emergency housing or tourist cabins within 72 hours. The continuous growth in China's prefabricated house exports (e.g., a 38.1% year-on-year increase in Guangzhou Customs exports in the first four months of 2026) reflects their adaptability in the international market.

IV. Typical Cases

The Nanjing Jindi Yufang project and the A-shaped house rapid construction project demonstrate the application potential of prefabricated frames in high-rise buildings and lightweight rapid deployment fields, confirming their technical maturity and market value.