Diagram of Prefabricated Concrete Components for Houses

Prefabricated concrete components for houses mainly include prefabricated floor slabs, prefabricated beams, prefabricated walls, prefabricated columns, prefabricated stairs, and other complex special-shaped components. The following is a detailed classification and description:

1. Prefabricated Floor Slabs
Prefabricated floor slabs are the main horizontal load-bearing components in houses and can be classified into four types based on their structural forms:

• Prefabricated Solid Slabs: These have a solid structure throughout, offering high load-bearing capacity. They are suitable for areas with high stiffness requirements but have relatively large self-weights.
• Prefabricated Hollow Slabs: These have internal cavities, reducing their self-weight while maintaining a certain load-bearing capacity. They are commonly used for floors or roofs in residential and office buildings.
• Prefabricated Composite Slabs: Composed of a prefabricated base slab and a cast-in-place concrete layer on-site, they combine the construction efficiency of prefabricated components with the integrity of the cast-in-place layer, making them suitable for large-span spaces.
• Prefabricated Balconies: Balcony slabs are manufactured in advance in the factory, including embedded parts for railings. After installation, they are directly connected to the main structure, improving construction speed.

2. Prefabricated Beams
Prefabricated beams are key vertical load-bearing components in houses, with the following main types:

• Prefabricated Solid Beams: These have solid rectangular or T-shaped cross-sections, offering high load-bearing capacity. They are suitable for main or secondary beams in frame structures.
• Prefabricated Composite Beams: The bottom part is prefabricated, and the top part is cast with concrete on-site, forming an integral load-bearing structure. They are commonly used in prefabricated frame systems.
• Prefabricated U-shaped Beams: These have a U-shaped cross-section with the opening facing upwards, facilitating the arrangement of internal pipelines. They are mostly used in subway tunnels or special industrial buildings.

3. Prefabricated Walls
Prefabricated walls are divided into load-bearing and non-load-bearing types, with significant functional differences:

• Prefabricated Solid Shear Walls: Used to resist horizontal loads (such as earthquakes and wind loads), they are commonly found in the core tubes or seismic structures of high-rise buildings.
• Prefabricated Hollow Walls: These have internal cavities, reducing their self-weight while providing thermal insulation properties. They are suitable for low-rise residential buildings or non-load-bearing partition walls.
• Prefabricated Composite Shear Walls: Composed of prefabricated wall panels and a cast-in-place layer on-site, they improve the overall structural integrity and are commonly used in prefabricated shear wall structures.
• Prefabricated Non-load-bearing Walls: These only serve to divide spaces, such as lightweight partition panels. They can be flexibly arranged to enhance indoor space utilization.

4. Prefabricated Columns
Prefabricated columns are vertical load-bearing components, mainly divided into:

• Prefabricated Solid Columns: These have solid circular or square cross-sections, offering high load-bearing capacity. They are suitable for frame columns in high-rise buildings or industrial plants.
• Prefabricated Hollow Columns: These have internal cavities, reducing their self-weight. They are suitable for structures sensitive to self-weight, such as long-span bridges or special buildings.

5. Prefabricated Stairs
Prefabricated stairs include stair flights and landings. They are manufactured to standard specifications in the factory and then directly installed, reducing on-site wet work, improving construction efficiency, and ensuring dimensional accuracy and surface quality.

6. Other Complex Special-shaped Components
To meet architectural functional and aesthetic requirements, prefabricated components also extend to various special-shaped types:

• Prefabricated Bay Windows: These integrate window frames with walls, enhancing the architectural facade effect while increasing indoor usable space.
• Prefabricated Exterior Walls with Bay Windows: These integrate bay windows with exterior walls in a prefabricated manner, reducing construction joints and improving waterproofing performance.
• Prefabricated Integrated Kitchens and Bathrooms: These pre-integrate pipelines, equipment, and structures, enabling modular installation for "move-in ready" convenience.
• Prefabricated Air Conditioning Panels: These reserve installation positions for outdoor air conditioning units, balancing functionality with a clean architectural facade.