Concrete Pouring Container House

The concrete-pouring container house requires the integration of container structural characteristics and concrete construction requirements, achieving efficient construction through standardized production, foundation treatment, and modular assembly.

I. Basic Characteristics of Container Houses

Container houses use standardized containers as their main structural components, featuring modularity, mobility, and reusability. Their structural frames are typically made of hot-dip galvanized cold-formed steel, with wall materials often consisting of rock wool, glass wool, or polyurethane sandwich panels, providing both fire resistance and thermal insulation. Depending on the type, foundation requirements vary:

• Foldable/Fixed Container Houses: Require only a flat ground surface; if possible, a concrete floor can be poured with drainage ditches installed.
• Packing-Box Container Houses: Offer flexible foundation options, including strip, mound, or direct placement on the ground.
• Prefabricated Panel Houses: Require a concrete foundation poured and secured with expansion bolts; the foundation is not reusable upon demolition.

II. Key Roles of Concrete Pouring

Concrete is primarily used in container houses for foundation treatment and local reinforcement:

1. Foundation Construction:
   • Under normal circumstances, container houses have relatively low foundation requirements, but a concrete floor can enhance living comfort and reduce structural stress concentration caused by uneven ground.
   • For long-term use or high-rise stacking of container houses, concrete strip foundations or raft foundations are necessary to distribute loads and enhance stability.
2. Structural Reinforcement:
   • At container connection nodes or load-bearing parts, concrete piers can be poured or additional concrete columns can be added to increase overall rigidity, especially suitable for areas with high seismic requirements.

III. Construction Process and Precautions

1. Standardized Production Phase:
   • Container modules are fabricated in factories, completing steel structure welding, wall prefabrication, and pre-embedding of water and electricity pipelines, with errors controlled within 2 millimeters to minimize on-site wet work.
2. On-Site Assembly Phase:
   • Foundation Treatment: Choose ground leveling or concrete foundation pouring based on the house type, ensuring a levelness error of ≤5mm.
   • Module Hoisting: Use a 50-ton crane with an intelligent positioning system to complete the installation of a single villa's main structure in 4 hours.
   • Node Connection: Fix container modules with high-strength bolts or welding, filling gaps with waterproof mortar or sealant.
3. Quality Control:
   • Concrete materials must meet a strength grade of C30 or higher, with a curing period of no less than 14 days after pouring.
   • Seismic and shock-absorbing devices, such as rubber pads or spring supports, must be installed at the connection points between containers and foundations.

IV. Advantages and Application Scenarios

By combining concrete pouring with modular design, container houses achieve the "Chinese speed" of completing a 100㎡ house from an empty lot to occupancy in 5 days, while also offering environmental advantages:

• Reducing the use of traditional building materials like bricks and stones, minimizing land damage from mining.
• The steel frame is recyclable, aligning with green building trends.
  Currently, this technology is widely applied in temporary construction sites, emergency housing, cultural tourism homestays, and other fields, with potential expansion into residential buildings and the hotel industry in the future.