Fully Prefabricated House Installation
The installation process of fully prefabricated houses is mainly divided into two core stages: factory prefabrication and on-site assembly, featuring short construction periods, controllable quality, energy efficiency, environmental protection, and cost advantages, making them suitable for various construction scenarios.
Factory Prefabrication: Standardized Production Ensures Quality
The components of fully prefabricated houses are manufactured in factories, covering ceilings, floors, walls, water and electricity pipelines, as well as structural components such as beams, slabs, walls, and columns. Factories employ automated production lines and parallel operation modes, utilizing high-precision molds and mechanized processing to control component errors within the millimeter range. For example, the dimensional deviation of prefabricated wall panels typically does not exceed ±2mm, far superior to the precision of traditional on-site pouring. Additionally, the enclosed and controllable factory environment avoids the impact of external factors such as weather and construction conditions on quality, ensuring that all components meet unified standards. Procedures such as the embedding of water and electricity pipelines and the installation of insulation layers are also completed simultaneously in the factory, reducing the need for secondary processing on-site and further enhancing construction efficiency.
On-site Assembly: Modular Combination for Rapid Formation
After being transported to the construction site, prefabricated components are lifted and assembled using equipment such as tower cranes. The assembly process follows the principle of "modularity," with components securely combined through methods such as bolt connections, welding, or anchor fixation with embedded parts. For example, the connection between prefabricated floor slabs and beams typically employs reserved steel bar对接 (butt joint) or slot-type connectors to ensure structural integrity; the joints between walls and floor slabs are filled with sealant or specialized filling materials to prevent leakage. The assembly sequence generally starts from the foundation layer and proceeds upward layer by layer, ultimately forming a complete building. Since most of the processing has been completed in advance for the components, only a small amount of manual operation is required on-site, allowing the assembly period for a single building to be shortened to a few days to a few weeks.
Advantages and Characteristics: Multi-dimensional Enhancement of Construction Efficiency
- Significantly Shortened Construction Period: Modular construction achieves parallel operations between factory prefabrication and on-site assembly, reducing the construction period by more than 60% compared to traditional methods. For example, after adopting modular construction, the completion and delivery time of a certain affordable housing project was compressed from 2.5-3 years to 1 year.
- Highly Controllable Quality: Factory production eliminates human errors, ensuring high uniformity in component quality and providing greater assurance for structural safety and durability.
- Outstanding Environmental Benefits: On-site operations are reduced by more than 80%, significantly lowering noise, dust, and construction waste emissions, in line with green building standards.
- Obvious Cost Advantages: Taking prefabricated houses in Henan as an example, the cost per square meter is approximately 300 yuan, with a single house assembly completed in 4 hours and a design lifespan of 70 years, resulting in lower long-term maintenance costs.
Application Scenarios: Covering Diverse Construction Needs
Prefabricated houses have been widely applied in scenarios such as residential buildings, dormitories, office buildings, schools, and hospitals, particularly suitable for projects with high requirements for construction period, quality, or environmental protection. For example, temporary housing for post-disaster relief, vacation homes in tourist attractions, and rapid construction projects in urban renewal have all achieved efficient delivery and sustainable utilization through modular technology.
