Enclosed Container House

An enclosed container house is a modular building form based on standard containers, transformed through structural modifications and functional adaptations. It features standardization, mobility, and rapid assembly, making it widely applicable in temporary accommodation, office, commercial, and emergency scenarios.

1. Structural Design and Material Innovation

The core structure of an enclosed container house employs high-strength steel (such as Q355B weathering steel), forming a self-balancing system through rigid connections between corner fittings and side beams, maintaining stability without external support. For example, Yiqi Company optimized the longitudinal corrugated plate design on the top of the container, utilizing the corrugated geometry to disperse stress, reduce local buckling risk, and simultaneously decrease material usage by approximately 15%. The enclosure structure adopts a three-layer composite construction of 'rock wool-air layer-aluminum-zinc coated steel plate,' with a rock wool layer thickness of 75-100 millimeters and a thermal conductivity below 0.040 W/(m·K). Combined with a 5-millimeter air layer to suppress convective heat transfer, the overall heat transfer coefficient (U-value) is below 0.5 W/(m²·K), effectively coping with the low-temperature environment in Inner Mongolia during winter, reducing condensation risk, and extending the lifespan of the steel structure.

2. Functional Adaptation and Scenario Applications

Based on usage requirements, enclosed container houses can be categorized into standard, expandable, and foldable types. Standard types (such as 20-foot and 40-foot containers) achieve office, accommodation, or storage functions through internal partitions. For instance, the double-wing expandable container in the Chile project, when expanded, provides an indoor area of 36 square meters, configurable with two bedrooms, a living room, a kitchen, and a bathroom. Foldable types achieve rapid expansion and fixation through hydraulic or manual mechanisms, with a single set taking only 5-10 minutes to expand, suitable for emergency rescue and short-term turnover scenarios. During transportation, their volume can be compressed to 1/5 of the expanded state, significantly reducing storage and transportation costs.

3. Performance Optimization and Sustainability

Enclosed container houses excel in earthquake resistance, corrosion prevention, and environmental protection. For a seismic design intensity of 7 degrees, a dual-fixation mode of 'wedge lock + high-strength bolt' is adopted, controlling displacement within 3 millimeters, superior to conventional welded joints. The surface coating system employs a combination of 'epoxy zinc-rich primer + polyurethane topcoat,' withstanding 1000 hours in salt spray tests without red rust, equivalent to a 15-year protection cycle, supporting a 25-year service life for the container's main structure. In terms of material recycling rate, a standard container consumes approximately 1.2 tons of steel, with carbon emissions only 1/2.3 of those of concrete temporary buildings, and the disassembly and assembly loss rate controlled within 5%, significantly reducing construction waste generation.