Deqing Container House Structure

The Deqing container house structure takes a standard steel structural frame as its core, adopting a modular design with properties of compression resistance, wind resistance, and corrosion resistance. The walls commonly use color-steel sandwich panels filled with insulation materials, balancing lightweight and thermal insulation performance.

1. Structural Frame and Materials

Container houses originate from the design of freight containers. The main body is welded into a standard steel structural frame using hot-dip galvanized cold-formed steel sections, ensuring compression resistance, wind resistance, and corrosion resistance capabilities. The frame achieves vertical stacking force transmission between modules through corner fittings, which are the only load-bearing connection points, and the welding quality must be guaranteed (e.g., spot welding is prohibited as a substitute). The walls usually employ color-steel sandwich panels (filled with rock wool, glass wool, or polyurethane in the middle), balancing lightweight and thermal insulation performance while meeting fire protection requirements (A-grade rock wool with a fire resistance limit of ≥0.5 hours is required for crowded places). The floor often uses cement fiber boards or steel-wood composite floors, and the walls and ceilings can choose metal panels or calcium silicate boards.

2. Modular Design and Combination Methods

Container houses achieve rapid assembly and disassembly through modular design, with the core advantage being flexibility. Their combination methods include:

• Single-box independent use: Such as small shops, sentry boxes, and temporary dormitories;
• Horizontal splicing: Connecting multiple containers horizontally to form conference rooms, exhibition halls, or homestay lobbies;
• Vertical stacking: Building multi-story dormitories or hotels (with a number of floors ≤6 and a height ≤24 meters) through vertical force transmission via corner fittings;
• Irregular combinations: Creating characteristic spaces such as popular homestays and coffee shops by using staggered, overhanging, L-shaped, or U-shaped enclosures (overhanging requires additional diagonal braces and prohibits punching).

3. Functional Adaptation and Scenario Applications

Container houses can be customized according to functional requirements, with common types including:

• Accommodation type: Equipped with air conditioners, lighting, tables, and chairs for immediate use;
• Office type: Configured with circuit systems and ceiling light strips to enhance comfort;
• Commercial service type: Such as shops and display boxes, with wall panels that can be designed as flippable or pull-out types;
• Special type: Medical containers, explosion-proof containers, refrigerated containers, etc., to meet special scenario requirements.

4. Technical Specifications and Safety Requirements

Container houses need to follow the technical regulations for modular combined houses, with key points including:

• Structural load-bearing: Wall panels and roof panels do not bear loads, and the force path is "panel secondary beams → main beams → corner columns → corner fittings → foundation";
• Seismic fortification: The seismic fortification intensity is ≤8 degrees, and the design service life is divided into 50 years (≥1.0) or 25 years (≥0.95);
• Fire and corrosion protection: Steel structures need to be coated with fire-resistant coatings, and emergency escape routes (with a clear width of ≥0.9 meters), fire extinguishers, and smoke detection systems should be configured;
• Requirements for existing containers: They must be GB/T12418 inspected and qualified containers, with no defects in beams and columns and complete and reliable corner fittings.