What Are the Prefabricated Components of Houses
Prefabricated components of houses can be classified into various types based on materials and functions, as detailed below:
From the perspective of materials, common prefabricated components include concrete prefabricated components, which are characterized by high strength and long service life. Typical examples include solid shear walls and composite floor slabs, widely used in building load-bearing structures. Steel structure components are formed through steel processing, offering advantages such as light weight and high construction efficiency, making them particularly suitable for high-rise buildings and large-span spatial structures. Aerated concrete components are made from raw materials like fly ash and cement, with a porous internal structure that provides excellent thermal insulation and seismic resistance, commonly used in non-load-bearing walls. Rock wool board components are based on mineral fibers such as basalt, combining thermal insulation, sound insulation, and fire resistance functions, often used in building exterior wall insulation systems.
From the perspective of functions, prefabricated components can be divided into four major categories:
- Horizontal components: These bear floor or roof loads and include hollow floor slabs (designed with hollow spaces to reduce self-weight), double-T slabs (with wide flanges suitable for large spans), prefabricated composite slabs (composed of a prefabricated layer and a cast-in-place layer, balancing construction efficiency and structural integrity), and steel bar truss floor decking (enhanced with truss steel bars for increased load-bearing capacity, commonly used in steel structure buildings).
- Vertical components: These primarily bear vertical loads, such as load-bearing walls (solid or with insulation layers), prefabricated concrete columns (mainly rectangular in cross-section, using full grout sleeve connection technology for reliable node connections), and hollow components (reducing weight while ensuring strength).
- Special-shaped components: Customized for complex architectural needs, such as integrated bathrooms (modular units integrating pipes and waterproof layers), bay windows (prefabricated concrete or steel structure window sills), and prefabricated balconies (standardized components including railing bases), significantly shortening on-site construction periods.
- Other common components: These include prefabricated composite beams (factory-prefabricated rectangular or T-shaped beam sections, cast simultaneously with floor slabs on-site), prefabricated concrete exterior wall panels (assembled wall panels with decorative finishes, enabling industrialized production of building facades), and prefabricated concrete interior wall panels (lightweight partition panels meeting indoor space division needs).
The standardized production and modular installation of prefabricated components effectively enhance construction efficiency and quality controllability, representing a core direction in the development of modern building industrialization.
