Container Integrated Housing Technology

Container integrated housing technology mainly includes core processes such as steel structure frame welding, wall and roof panel prefabrication, internal water and electricity pipeline embedding, anti-corrosion treatment, and modular design and assembly.

1. Steel Structure Frame Welding
The core structure of container houses is a welded frame made of section steel. The thickness of the steel used for key components such as main beams and columns directly affects the load-bearing capacity and safety. For example, the packing boxes produced by Suzhou Zhongnan Steel Structure Co., Ltd. adopt a fully steel structure frame. Through automated welding processes, the strength of the welds is ensured, with measured wind resistance up to Level 12 and earthquake resistance up to Level 8, and a frame deformation rate of only 0.18%. The welding process must be full and free of cold welds to avoid local stress concentration leading to structural failure.

2. Wall and Roof Panel Prefabrication
Wall and roof panels are prefabricated in factories, typically using a composite structure of light steel keels and insulation materials, with metal panels or fireproof panels covering the surface. For example, foldable modular buildings integrate insulation layers, doors, windows, and water and electricity pipelines into the walls, achieving 'full house prefabrication' and requiring only on-site expansion and connection for use. The prefabrication process reduces on-site wet work and improves construction efficiency and component precision.

3. Internal Water and Electricity Pipeline Embedding
Water and electricity pipelines are embedded in the walls and floors during the factory stage to avoid on-site trenching that could damage the structure. For example, the standard container houses produced by CIMC Modular Building Investment Co., Ltd. complete the installation of internal facilities such as bathroom equipment, cabinets, and wardrobes on the assembly line. Standardized designs for water and electricity interfaces support quick connections, shortening the on-site commissioning cycle.

4. Anti-Corrosion and Coating Treatment
Steel structures require overall galvanizing or spraying with anti-corrosion coatings to extend their service life. For example, in the Yiqi area, where there are significant temperature differences between day and night and obvious humidity changes, hot-dip galvanized coatings are more corrosion-resistant than cold-dip galvanized coatings, effectively preventing rusting of the container body. The quality of the anti-corrosion process directly affects the durability of container houses in harsh environments.

5. Modular Design and Assembly
Container houses adopt standardized modular designs, supporting horizontal splicing, vertical stacking, or cantilevered combinations to form multifunctional building complexes. For example, Chengdong International's 3D parametric design system uses 20-foot containers as basic units and can build a wind power project camp accommodating 500 people within 7 days through modular combinations, while traditional brick-and-mortar buildings would take 3 months. Modular design also supports customized modifications such as curved roofs, pitched roofs, or windows with an opening rate of up to 40%.