Safety Performance of Container Houses

The safety performance of container houses has two sides, with advantages such as structural stability and earthquake resistance, as well as issues like fire hazards and stacking limitations.

Structural Stability and Earthquake Resistance
Container houses are primarily constructed with steel materials, providing high load-bearing capacity. Through rational design and reinforcement (such as adding support frames and strengthening welded joints), structural stability in conventional usage scenarios can be ensured, meeting residential safety requirements. Their steel structural systems can absorb energy through deformation under seismic forces, demonstrating good earthquake resistance. If further earthquake-resistant reinforcement measures are adopted during the design phase (such as adding dampers and optimizing structural layouts), the overall earthquake resistance can be significantly enhanced, reducing the risk of earthquake damage.

Prominent Fire Safety Hazards

1. Poor Fire Resistance: In a fire, temperatures can reach 800-1000℃, while steel structures lose static equilibrium stability at around 500℃. Ordinary container houses may collapse within about 10 minutes after a fire starts due to loss of load-bearing capacity, leaving very limited time for evacuation.
2. Risk of Flammable Materials: Some container houses use flammable materials like polyurethane and polystyrene to fill the panel cores. These materials have low ignition points and poor flame resistance, quickly burning when exposed to high-temperature sparks, electrical short-circuit sparks, or open flames. Their honeycomb structure increases contact area with air, causing rapid fire spread and generating large amounts of toxic smoke, exacerbating casualty risks.
3. Limited Evacuation Routes: Some users expand usable area without following regulations to reserve safety channels and evacuation spaces, obstructing evacuation during fires and further reducing safety.

Special Limitations for Multi-Level Stacking
The safety of multi-level container houses requires comprehensive consideration of foundation bearing capacity, soil stability, and other basic conditions. Excessive stacking layers may lead to structural instability, necessitating rational design of support structures (such as adding horizontal connections and setting lateral force-resisting members) and reinforcement measures (such as welding reinforcement plates and adding diagonal braces) to ensure stability. Additionally, local building codes regarding stacking layers and structural safety must be strictly followed to avoid safety hazards caused by non-compliant operations.