Illustrated Guide to Container House Structure

Container houses use standard containers as basic modules, achieving residential functions through structural modifications and spatial combinations. Their core structural elements include container body structure, connection reinforcement, space expansion, and functional adaptation.

1. Basic Container Body Structure

The main body of a container house adopts ISO standard containers, commonly available in 20-foot (internal dimensions: 5898×2352×2390mm) and 40-foot (internal dimensions: 12024×2352×2390mm) sizes. These containers are constructed with weather-resistant steel frames, corrugated steel plate walls, corner fittings, and bottom sills. Corner fittings, located at the eight corners of the container, are crucial for stacking, lifting, and securing. They enable vertical connections between containers through twist locks. Bottom sills are horizontal steel beams that enhance structural strength and prevent moisture damage. Ventilation openings, typically located at both ends of the container, regulate internal temperature and humidity. Forklift pockets facilitate forklift handling, and the floor is treated for insect resistance to ensure long-term durability.

2. Connection and Reinforcement of Multiple Containers

When combining multiple containers, adjacent container corner posts must be welded or bolted to form an integrated load-bearing structure. For example, a two-story container house achieves vertical connection through welding of longitudinal corner posts, while horizontal connections are secured using corner fitting twist locks to prevent horizontal displacement. Dynamic combinations require additional reinforcement, such as adding horizontal steel beams or diagonal braces in stacked structures to prevent deformation caused by lateral forces.

3. Space Expansion and Functional Optimization

1. Deformable Expansion: Hydraulic rods or hinges can be used to fold container panels downward to create patios or upward to form canopies, increasing usable space. For instance, a single-container house can unfold one side panel into an outdoor leisure area.
2. Telescoping Modules: Some designs divide the container into fixed and sliding zones, enabling space expansion through a pulley system. For example, the side panel of a resting area can slide outward, doubling the internal space.
3. Modular Layout: Functional areas are divided based on ergonomics, such as partitioning a 20-foot container into living, kitchen, and sleeping modules. Vertical space utilization, such as overhead cabinets, enhances comfort.

4. Functional Adaptation and Detail Handling

1. Thermal Insulation and Protection: Galvanized pipe frames, insulation panels, and multi-layer protective materials are used to address the rapid heat conduction of steel containers, ensuring warmth in winter and coolness in summer.
2. Door and Window Systems: Original container walls are cut to install doors and windows, or modular door and window units are used to improve lighting and ventilation. For example, a mountain resort hotel employs large floor-to-ceiling windows to enhance indoor-outdoor interaction.
3. Interior Decoration: Materials such as birch plywood and natural linoleum are used to cover metal walls, paired with industrial-style lighting to balance practicality and aesthetics.