Bearing Foundation of Container Houses

The bearing foundation of container houses primarily relies on their steel structural frames. The load-bearing capacities of containers of different specifications vary, and the foundation requirements differ based on the type of house.

Load-Bearing Capacity of Container Houses

The core difference between container houses and traditional panel houses lies in their steel structural frames. The frames of standard containers are welded from profiled steel, offering a load-bearing capacity far exceeding that of ordinary movable panel houses. According to international standards, a 20-foot container has a load-bearing capacity of 25 tons, while a 40-foot container can bear 45 tons. This load-bearing capacity enables container houses to meet various construction needs, ranging from small single-container buildings to large modular structures composed of hundreds of containers.

Key Elements of Load-Bearing Structures

When purchasing container houses, it is essential to focus on the following three aspects to ensure their load-bearing performance:

1. Steel Thickness: The thickness of the steel used for main beams and columns directly affects the load-bearing capacity. Thicker steel provides stronger support.
2. Welding Process: The welding process must be full and free of cold welds to ensure the stability of the frame structure and prevent load-bearing failure due to welding defects.
3. Corrosion Protection: The container body must undergo overall galvanization or spray coating for corrosion protection to extend its service life and prevent a decrease in load-bearing capacity caused by rust.

Foundation Requirements

The foundation requirements for container houses vary depending on the type of house:

• Foldable Container Houses and Fixed Residential Container Houses: These have low foundation requirements and can be used simply by leveling the ground. If conditions permit, a cement floor can be poured, and drainage ditches can be constructed to enhance living comfort.
• Packing-Box Container Houses: These have simple foundation requirements. Strip or蹲型 (a type of foundation, here translated as 'mound-type' for lack of a better direct equivalent) foundations can be made, or they can even be placed directly on the ground.
• Residential Movable Panel Houses: These have higher foundation requirements and necessitate pouring a certain area of concrete and securing the house to the foundation with expansion bolts. When demolished, the first layer of concrete foundation is usually not reusable.