Prefabricated Panel House Construction

Prefabricated panel house construction is a method of rapidly building houses using prefabricated panels as the main components, through splicing and fixing methods. Here is a detailed introduction to prefabricated panel house construction:

Types of Prefabricated Panels:
Prefabricated panels are cement components prefabricated in factories. During production, wooden models are nailed together, and steel bars are arranged inside the models before pouring cement, ultimately forming cement components. Depending on their internal structure, prefabricated panels can be divided into two types: solid and hollow. Solid prefabricated panels have high overall strength and are suitable for areas with high load-bearing requirements; hollow prefabricated panels have a hollow interior, are relatively lightweight, can reduce the building's self-weight, and save material costs. They are commonly used for floor slabs or partition walls with low load requirements.

Characteristics of the Construction Process:
The core of prefabricated panel house construction lies in "modular splicing", with significantly higher construction efficiency compared to traditional cast-in-place buildings. Taking a construction case in rural South Korea as an example, the main structure can be built in just 14 days. The key technologies include:

• Foundation Treatment: Using 5-ton foundation piles fixed to the ground with base plates to ensure overall stability; followed by beam splicing, where beams are quickly connected using mortise-and-tenon joints without complex welding or bolt connections, greatly improving construction speed.
• Component Installation: Components such as stairs are installed by lifting them like "building blocks", and floor slabs are laid with 5 cm thick prefabricated panels, reducing on-site wet work.
• Gap Treatment: After all components are spliced, the gaps are grouted to enhance the overall structural integrity and waterproof performance.

Specific Construction Steps:

1. Foundation Preparation: Level the site and pour a cushion layer to provide a flat foundation for the installation of foundation piles.
2. Foundation Pile and Beam Installation: Fix the foundation piles and splice the beams to form the main frame of the house.
3. Backfilling and Pouring: Backfill soil to the designed height, then pour foundation concrete to further strengthen structural stability.
4. Prefabricated Panel Laying and Grouting: Install prefabricated floor slabs, stairs, and other components, and finally grout and seal all gaps.

Prefabricated panel house construction achieves the goals of short construction periods and high efficiency through factory-prefabricated components and rapid on-site splicing, while ensuring structural safety. It is suitable for scenarios such as rural self-built houses and temporary buildings.