On-site Installation of Container Houses

The on-site installation of container houses requires focused attention on four core aspects: structural selection, ground treatment, lifting and positioning, and installation of supporting systems. The specific technical points are as follows:

1. Structural Type Selection and Quality Control Container houses are mainly divided into two types: welded integral containers and bolt-connected assembled containers. Welded containers are formed by integral welding in the factory, with loads directly transferred to the bottom sill through side wall columns, offering strong resistance to deformation and suitability for frequent lifting and moving scenarios. Bolt-connected assembled containers use standard panels for assembly, requiring careful inspection of the steel wall thickness of columns and bottom sills (common specifications range from 1.5 to 3 millimeters) and the tightness of connection nodes, with thicker walls providing greater load-bearing redundancy. The coating process on the container surface directly affects durability, with hot-dip galvanizing offering a longer corrosion-resistant lifespan than cold-dip galvanizing, especially suitable for regions with significant temperature variations between day and night and humidity changes.

2. Ground Foundation Treatment Techniques The bottom sills of container houses are typically I-beams or channel steels, with limited contact area with the ground, necessitating the selection of foundation types based on the usage period:

• For long-term fixed use: Pour concrete strip foundations, with a recommended width of 30-50 centimeters and a depth exceeding the local frost line thickness, controlling the horizontal error of the foundation top surface within 2 millimeters per meter.
• For short-term temporary use: Use prefabricated concrete pads or steel plates, with pad spacing not exceeding 2 meters, and lay a crushed stone leveling layer underneath to ensure even force distribution. Direct placement on soft soil can lead to uneven settlement of the container due to localized pressure, causing issues such as door and window deformation and wall cracks.

3. Lifting, Positioning, and Horizontal Calibration During lifting, use steel wire ropes with sufficient load-bearing capacity to ensure synchronous force application at all lifting points, avoiding container distortion due to unilateral force. Immediately after the container is positioned, check the fit between the bottom sill and foundation pads, using thin steel sheets to fill any local gaps to prevent floor vibration or abnormal noise during subsequent use. Horizontal calibration should be performed along both the longitudinal and transverse directions of the bottom sill, with errors controlled within 2 millimeters per meter.

4. Installation Points for Supporting Systems

• Drainage and Water Supply Systems: The installation ground should be higher than the surrounding environment, with drainage ditches excavated around the container and a gable-shaped canopy installed on top; water supply can be achieved by connecting to the municipal system or adding a water tank.
• Thermal Insulation Treatment: After fixation, add soundproof and thermal insulation cotton layers, and install air conditioning facilities to address the issue of container houses being cold in winter and hot in summer.
• Lightning Protection and Grounding Measures: In regions prone to thunderstorms, install lightning rods to ensure the safety of iron container houses during thunderstorms.