Prefabricated House Frame Blocks

Prefabricated house frame blocks are the core components of prefabricated houses (prefabricated assembled buildings), produced industrially and assembled on-site, covering prefabricated components such as beams, slabs, walls, and columns.

Technical Systems and Types

The technical systems of prefabricated house frame blocks are mainly divided into two categories: prefabricated concrete structures and steel structures. The former uses concrete as the base material, forming an overall structure through the assembly of prefabricated components; the latter employs steel as the framework, offering higher strength and flexibility. Depending on the assembly method, prefabricated blocks can be classified into the following types:

1. Panel-based Assembly: Focused on planar components such as prefabricated wall panels and floor slabs, these are assembled on-site to form the main structure of the building, suitable for multi-story residential or commercial buildings.
2. Box-based Assembly: Prefabricated functional units (such as room modules) are fully fitted out in the factory and then transported to the site for direct combination, increasing construction speed by 50%-70%. For example, the Nanjing Jindi Yufang project uses a prestressed prefabricated concrete assembled integral frame structure system.
3. Frame-based Assembly: Centered around prefabricated beams and columns as the framework components, these are connected at nodes to form a structural system, suitable for high-rise buildings or large-span spaces.

Application Advantages and Cases

The core advantages of prefabricated blocks lie in industrial production and rapid on-site assembly. Standardized factory production ensures stable component quality, reduces on-site wet work, and lowers construction noise and dust pollution. Taking box-based assembly as an example, its modular design significantly shortens the construction period, and the components can be reused, aligning with green building principles. The Nanjing Jindi Yufang project achieved a balance between structural safety and construction efficiency by adopting a prestressed prefabricated concrete frame system, providing a reference for similar projects.

Market Products and Prices

The market offers a variety of prefabricated frame products, including steel structure frames, concrete structure frames, and modular container frames. Prices are influenced by materials, design complexity, and scale, ranging from 167.23 yuan to 3,344.50 yuan per square meter. Among them, steel structure frames are often used for temporary housing or commercial projects due to their light weight and fast construction; concrete structure frames are cost-effective and suitable for residential construction; modular container frames excel in flexibility, enabling rapid setup of emergency facilities or mobile spaces.

Applicable Scenarios

Prefabricated blocks are widely used in temporary housing (such as post-disaster reconstruction), commercial projects (such as pop-up shops and exhibition halls), and residential construction (such as multi-story apartments and villas). Their modular nature allows them to adapt to different functional requirements while reducing overall costs through mass production, making them an important direction for the industrialization of modern construction.