Container House Design
Container-house design standards cover overall design, materials and structure, seismic design, two-story layouts, other key points, performance assessment, construction acceptance, and training and outreach, as follows:
Overall design principles: Follow a “prevention first, seismic resistance as support” approach. At the planning stage, take geology, seismicity, and climate into account so the building suits different environments.
Material selection and structural detailing: Use high-quality container materials; choose high-strength, corrosion-resistant connectors and fixings. For the main structure, steel yield strength must be at least 235 MPa; use weathering steel in corrosive environments. After cutting or modification, plate thickness must be no less than 80% of the original design, and openings must have a stiffening frame at least 150 mm wide. Structurally, apply modular and standardized design, with attention to overall stability and local detailing.
Seismic design points: Foundations must be solid and reliable—use micropile foundations in soft ground; in frozen-soil regions, foundation embedment must extend at least 300 mm below the frost line; for relocatable projects, use screw piles with leveling bases. Structural design should distribute loads; in Intensity 8 fortification zones, use a bidirectional cross-bracing system; in coastal typhoon areas, add base uplift anchors to improve wind-uplift resistance; keep the structural damping ratio in the 0.05–0.08 range. Connections and fixings must keep containers firmly joined—prefer full-penetration welds between units, and use anti-slip washers with bolted connections. Reinforce critical and weak spots with added braces, stiffener plates, and similar measures.
Two-story container-house design points: Design foundations and principles for a stable vertical stack—diversify foundation types, connect the ground floor to the foundation, and rigorously calculate loads at upper-to-lower connection points. Space planning usually separates living and rest areas by floor; stairs must allow easy passage and meet safe egress requirements. Structural strengthening covers corner-post reinforcement, sidewall stability, and floor load capacity; opening edges should be edged and strengthened with channel or square steel.
Other design points: Design roof live load for at least 1.5 kN/m²; when stacking levels, check eccentric load effects. Fire design should raise the fire-resistance rating of cold-formed thin-walled members; protect electrical wiring with metal conduit. For thermal insulation, use double insulated glazing with insulation layers; in cold climates, add exterior aerogel felt to reduce thermal bridging. Ensure adequate ventilation area and air-change rates, and control window-to-floor ratios and skylight installation angles for daylighting.
Seismic performance assessment: Build an assessment system using theoretical calculation, model testing, and field testing; set standards that quantify seismic performance; monitor and maintain regularly to keep performance reliable.
Construction and acceptance: Manage construction strictly to the codes to ensure quality; define detailed acceptance criteria; and follow a rigorous acceptance process so every stage complies.
Training and outreach: Strengthen training and publicity on seismic design standards to raise professional skill and awareness among relevant personnel.
