Container House Installation and Construction
When installing and constructing container houses, it is essential to focus on four core aspects: structural selection, ground treatment, lifting specifications, and the selection of compliant manufacturers. The following provides an in-depth explanation from the perspectives of technical processes and industry standards:
1. Structural Type Selection and Performance Verification
Container houses can be categorized into two types: welded integral containers and bolt-connected modular containers. Welded integral containers are fully welded in the factory, with a direct load transfer path (roof → side wall columns → bottom beams → ground), offering strong resistance to deformation and suitability for frequent lifting scenarios. Bolt-connected modular containers are assembled using standard panels, requiring careful inspection of the wall thickness of columns and bottom beams (recommended 1.5-3 mm) and the tightness of connection nodes, as insufficient wall thickness can lead to load-bearing failure. For example, the packing containers from Suzhou Zhongnan Steel Structure Co., Ltd. feature a fully steel structural frame, achieving a wind resistance rating of Level 12, an earthquake resistance rating of Level 8, and a frame deformation rate of only 0.18%, significantly lower than the industry's acceptable threshold of 0.3%.
2. Ground Foundation Treatment Standards
Ground treatment must provide a uniform load-bearing foundation for the container to prevent structural damage caused by uneven settlement. For long-term fixed use scenarios, a concrete strip foundation should be poured (width 30-50 cm, depth determined by the thickness of the frost layer), with a top surface level error of ≤5 mm. For short-term use scenarios, prefabricated concrete pads or steel plates can be used, with pad spacing ≤2 m and a crushed stone leveling layer laid beneath. For example, in the Yiqi area, due to significant temperature variations between day and night and noticeable humidity changes, a hot-dip galvanized coating process should be prioritized to extend the corrosion resistance lifespan.
3. Lifting and Positioning Operation Specifications
During the lifting process, precise control over the contact between the container and the foundation is crucial. Key lifting points include: using steel wire ropes with sufficient load-bearing capacity to ensure synchronized force application and prevent container distortion; checking the fit between the bottom beams and pads after positioning, using thin steel sheets to fill any local gaps; and controlling the level error within 2 mm per meter. For example, when lifting standard container houses from CIMC Modular Building Investment Co., Ltd., professional teams are required to operate to prevent structural instability caused by loose bolts.
4. Compliant Manufacturer and Product Selection
Prioritize manufacturers holding ISO9001 quality management system certification, fire performance testing certification, and steel structure professional contracting qualifications. Compliant products must meet wind and earthquake resistance design codes (e.g., GB50011-2010). Non-standard white-label products, due to substandard material thickness (e.g., frame steel thickness only 60% of the design standard), can lead to doubled rework costs. For example, the lifecycle maintenance costs of products from leading manufacturers are only 35% of those of non-standard products, and they support high-end requirements such as cross-border compliance and low-carbon attributes.
