Thickness of Prefabricated Houses
The thickness of prefabricated houses varies depending on the specific component type, with the thickness ranges of common components as follows:
The thickness of a prefabricated house is mainly determined by its structural components. The thickness design of components with different functions needs to meet requirements for mechanical properties, thermal insulation, and usage needs. The following explains three types of components: walls, floor slabs, and common prefabricated panels.
1. Thickness of cement prefabricated panel walls
Cement prefabricated panel walls are the main load-bearing or enclosure structures of prefabricated houses, and their thickness directly affects the stability and space utilization of the house. According to design specifications, the thickness of ordinary cement prefabricated panel walls is usually between 120 mm and 150 mm. This range can ensure that the walls have sufficient compressive and shear resistance while controlling material usage to reduce costs. For example, non-load-bearing exterior walls of low-rise residential buildings may have a thickness of 120 mm, while interior walls that need to bear the load of the floor or exterior walls of high-rise buildings may increase to 150 mm. In addition, if the wall needs to integrate an insulation layer or decorative finish, the actual total thickness may further increase.
2. Thickness of ordinary cement prefabricated floor slabs
The thickness of floor slabs needs to be comprehensively determined based on the span, load, and usage scenario. The thickness range of ordinary cement prefabricated floor slabs is 60 mm to 120 mm. Specifically, floor slabs with a short span (e.g., within 3 meters) can use thin slabs with a thickness of 60 mm to 80 mm to reduce self-weight and save materials; floor slabs with a long span (e.g., over 4 meters) or those that need to bear heavy equipment (e.g., in industrial plants) need to be increased to 100 mm to 120 mm to ensure structural stiffness and deformation resistance. In addition, the thickness of floor slabs also needs to comply with fire protection regulations. For example, in some scenarios, a fire resistance limit of more than 1 hour needs to be guaranteed, which may indirectly affect the choice of thickness.
3. Thickness of common prefabricated panels
In addition to walls and floor slabs, other types of prefabricated panels are widely used in prefabricated houses, such as roof panels and partition panels. The common thicknesses of these prefabricated panels are 120 mm and 150 mm. For example, a 120 mm thick prefabricated roof panel is suitable for pitched roofs or lightweight structures, while a 150 mm thick roof panel may be used for flat roofs or scenarios that need to bear additional snow loads or equipment. If partition panels adopt a hollow structure, the thickness may be further reduced to about 100 mm, but this comes at the cost of sacrificing some sound insulation performance.
In conclusion, the thickness of a prefabricated house needs to be comprehensively determined based on the component type, structural requirements, and usage scenario. During the design process, safety, economy, and functionality need to be balanced.
