Container Refit House Shakes

**The shaking of container refit houses may be caused by insufficient structural strength, unstable connections and fixings, flaws in wind and earthquake resistance design, or foundation problems, requiring targeted reinforcement. **

Insufficient Structural Strength

Although standard containers possess a certain degree of structural strength, removing key load-bearing components (such as columns and beams) or creating too many openings during refitting can compromise overall stability. For example, in the case of Zhejiang Haiyan, a man purchased a container online that was not reinforced and used ordinary materials. It was blown apart by an 8-level wind, revealing the issue of insufficient structural strength. During refitting, avoid randomly cutting the container body. If necessary, add internal support frames and use high-strength steel to reinforce key nodes.

Unstable Connections and Fixings

The connection method between containers directly affects overall stability. If only bolts are used for simple splicing without welding or adding diagonal braces, the containers are prone to shaking under wind or external forces. It is recommended to use a combination of welding and bolts to fix the container bodies, add angle irons or channel steels at the connections for reinforcement, and use chemical anchors to fix the containers to the foundation to prevent displacement.

Flaws in Wind and Earthquake Resistance Design

The wind resistance rating of container houses needs to match the actual environment. The 'Level 10 wind resistance' marked by the manufacturer in the case is only a theoretical value. In practice, terrain (such as open wind gaps) and installation methods need to be considered. During refitting, design the structure according to local wind pressure and earthquake intensity, for example, by adding diagonal tie rods, shock absorbers, or using stacked combinations to form a loft structure to improve lateral resistance.

Foundation Problems

An uneven foundation or insufficient bearing capacity can cause uneven force distribution on the container, leading to shaking. Before construction, evaluate the foundation conditions. Compact soft soil foundations or pour concrete foundations to ensure a tight fit between the container and the foundation. In addition, after long-term use, check whether the foundation has settled and adjust the fixing method in a timely manner.

Other Precautions

• Waterproofing and Corrosion Prevention: Apply waterproof glue on the roof and perform anti-corrosion treatment on the container body to prevent rainwater erosion from weakening the structure.
• Professional Construction: Choose a qualified team for refitting to avoid safety hazards caused by process defects.
• Regular Maintenance: Check whether the connections are loose and whether the container body is deformed, and repair problems in a timely manner.