Prefabricated House Assembly Steps Drawings

The assembly steps of a prefabricated house mainly consist of four stages: fixing the base and support columns, installing wall panels, securing beams, and installing the roof. Rapid assembly is achieved through limiting structures, avoiding cast-in-place processes, and offering high efficiency and low cost.

1. Fixing the Base and Support Columns
The base, as the foundational structure of the house, requires a first limiting structure to restrict the vertical movement of the support columns. This structure is typically designed as a slot or protrusion, which cooperates with corresponding grooves or holes at the bottom of the support columns to prevent displacement during installation due to gravity or external forces. Subsequently, a second limiting structure intervenes, using components such as bolts, pins, or wedges to restrict the rotational freedom of the support columns, ensuring their fixed relative position to the base. This step is crucial for the stability of the house, requiring precision and strength in the limiting structures to avoid misalignment or loosening of the support columns during subsequent installations.

2. Installing Wall Panels
The installation of wall panels relies on auxiliary and guiding structures for rapid positioning. Auxiliary structures may include temporary supports or guiding rails that help accurately guide the wall panels into their preset positions between adjacent support columns. The guiding structures, through grooves or protrusions on the sides of the support columns, cooperate with corresponding components on the edges of the wall panels to guide them along predetermined paths, reducing installation errors. Once in place, the installation structures at the top of the base (such as snaps, bolt holes, or welding points) secure the wall panels, forming a rigid connection with the support columns. Attention must be paid to the verticality and levelness of the wall panels in this step to ensure the flatness of the overall structure.

3. Securing Beams
Beams are divided into first and second beams, with a dual-fixing approach employed to enhance structural strength. The first beam is fixed to the top of the support columns using a third limiting structure (such as bolts, slots, or welding), forming the main load-bearing framework of the house. The second beam is then horizontally connected to the first beam using a fourth limiting structure (such as mortise-and-tenon joints, bolts, or connectors), further distributing the load and improving stability. This dual-fixing design avoids stress concentration at a single connection point, making it suitable for large-span or high-rise prefabricated houses.

4. Installing the Roof
The roof is fixed between the tops of the first and second beams using a fifth limiting mechanism. This mechanism may include hooks, bolts, or snaps that tightly connect the roof panels to the beams, forming a waterproof and load-bearing structure. Attention must be paid to the slope design during roof installation to ensure smooth drainage, and the sealing of the limiting mechanism must be checked to prevent rainwater leakage.

Summary of Advantages
This prefabricated house assembly method achieves modular rapid installation through standardized limiting structures, eliminating the need for on-site concrete pouring, significantly shortening the construction period, and reducing labor costs. Meanwhile, the factory production of prefabricated components ensures quality stability, reduces material waste and environmental pollution, and aligns with the development trend of green buildings.