Performance of Prefabricated Houses in Guizhou
The prefabricated houses in Guizhou exhibit excellent performance, which is reflected in multiple aspects such as structural safety, thermal insulation, moisture resistance, construction efficiency, quality control, environmental friendliness, and adaptability.
Outstanding structural safety performance: Prefabricated houses in Guizhou adopt steel structures or light steel-concrete composite systems. Some prefabricated concrete houses use a "full-frame shear wall" design, constructing skeletons with national standard deformed steel bars and pouring high-strength concrete as a whole to form a sturdy structural system. They have strong earthquake resistance, capable of withstanding earthquakes of magnitude 8 (with a designed seismic fortification intensity of 7 degrees). The width of wall cracks is controlled within 0.2mm, and the main structure remains undamaged. They also have excellent wind resistance; under a typhoon of magnitude 12, there is no looseness between modules, and there is no risk of the roof waterproofing membrane being blown off. Their fire resistance rating is high, with the fire resistance limit of concrete reaching over 3 hours, which is superior to traditional brick-concrete structures.
Excellent thermal insulation, moisture resistance, and heat preservation performance: In response to Guizhou's climate characteristics of being rainy and humid, hot in summer and cold in winter, prefabricated houses generally adopt light steel structures with composite insulation wall systems or steel structure skeletons with composite insulation walls, providing excellent thermal insulation and moisture resistance and effectively improving living comfort.
Significant improvement in construction efficiency: Modular design and dry construction methods greatly reduce on-site wet construction. Components are standardized and produced in factories and then quickly assembled on-site. The construction period is shortened by 40%-97.5% or more compared to traditional methods. With a high degree of integration, water and electricity pipelines can be pre-buried in factories, reducing on-site cross-operations and enabling "plug-and-play" functionality.
High level of quality control: Three-dimensional modeling and node optimization are carried out through BIM technology to ensure assembly accuracy and seismic performance. The combination of digital design and intelligent manufacturing technology improves the production accuracy of components and engineering collaboration efficiency, providing a guarantee for precise construction in complex terrains.
Outstanding environmental friendliness: The material recyclability rate reaches over 85%, which is in line with the orientation of ecological civilization construction. Through BIM technology, design optimization and precise prefabrication of components are achieved, reducing material waste. With less on-site wet construction, the disturbance to the ecological environment is reduced.
Strong adaptability: Modular design allows for flexible layout according to mountainous terrain, effectively addressing the challenges of complex terrain and inconvenient transportation in Guizhou. It is widely used in various scenarios such as rural revitalization, tourist homestays, emergency shelters, and mountain schools.
