Prefabricated House Construction Steps Images
The construction steps of a prefabricated house are mainly divided into four stages: foundation treatment, module prefabrication, on-site assembly, and acceptance. The specific process is as follows:
1. Foundation Treatment Stage
First, site clearing and foundation leveling are required to remove obstacles such as weeds and stones, ensuring that the ground flatness meets design requirements. Subsequently, foundation pits are excavated, with depth and dimensions strictly following architectural drawings. After completion, a concrete cushion is poured as the foundational support layer. Once the concrete has set, anchor plates are installed, and prefabricated foundation piles (each weighing approximately 5 tons) are fixed. A frame structure is formed by splicing crossbeams, with nuts used to secure connection points. Foam sealant is applied to gaps to enhance sealing. Finally, soil is backfilled and compacted in layers to further reinforce foundation stability.
2. Factory Module Prefabrication Stage
The main structure of the house is prefabricated in the factory, including modules such as ceilings, walls, and floors. Some projects employ a steel-concrete integrated pouring process, combining built-in steel reinforcement frameworks with concrete to significantly enhance the module's seismic resistance and structural strength. Ancillary facilities such as water and electrical pipelines, as well as door and window frames, are pre-installed in the factory to reduce on-site construction errors. Each module is accompanied by a unique identification 'ID card' containing information such as the project name, production date, and quality inspection data, facilitating subsequent traceability and management.
3. On-Site Assembly Stage
After being transported to the construction site by specialized vehicles, prefabricated modules are lifted in the designed sequence using cranes and other lifting equipment. The assembly process resembles 'building with blocks,' with modules precisely connected via pre-installed connectors (such as bolts and clips) to ensure vertical and horizontal alignment meets specifications. After assembly, gaps between modules are grouted using high-strength cement-based materials to enhance the overall structural integrity. Some projects also lay waterproof membranes at joints to prevent rainwater infiltration.
4. Acceptance Stage
The construction team must conduct a comprehensive inspection of the house, including structural stability, the smoothness of water and electrical lines, and the sealing of doors and windows. Acceptance criteria are based on national building codes, with a focus on checking whether the strength of module connections meets standards and whether the waterproof layer is intact. Once acceptance is passed, the house can be delivered for use.
For visual step references, it is recommended to obtain construction process diagrams from professional architectural platforms (such as ArchDaily, BuildIt) or the official websites of prefabricated house manufacturers. Some manufacturers also provide 3D animation demonstrations, allowing for a more intuitive understanding of operational details in each stage.
