Container House Construction Requirements

The construction requirements for container houses cover multiple aspects such as structural selection, material quality, installation accuracy, concealed works, and acceptance standards, as detailed below:

1. Structural Selection and Material Requirements
Container house structures are divided into two types: welded integral containers and bolt-connected assembled containers. Welded containers have strong resistance to deformation and are suitable for frequent relocation; assembled containers require inspection of the wall thickness of the columns and bottom beams (1.5-3 mm), with thicker walls providing greater load-bearing redundancy. Materials must comply with national standards, such as steel, accessories, and rock wool sandwich panels, which must pass quality inspections to ensure sound insulation, thermal insulation, fire resistance, and waterproofing.

2. Foundation Construction and Installation Accuracy
The foundation must be stable and firm, using concrete or brick foundations. The deviation in axis dimensions should not exceed ±25 mm, and the deviation in wall height should not exceed 10 mm. When stacking multiple containers, strict control of verticality is required, with steel beam positions calibrated using plumb lines or steel tapes to ensure component dimensions meet design requirements. Lifting operations must follow safety regulations to avoid structural deformation caused by collisions.

3. Concealed Works and Node Treatment
Concealed works include water and electricity installation, moisture-proofing, and waterproofing, which must be inspected and accepted before covering. Node connections must be earthquake-resistant and loose-proof, with all bolts tightened and welding quality inspected and approved. Waterproofing must use specialized materials to prevent leakage; electrical wiring must comply with the 'Code for Acceptance of Construction Quality of Building Electrical Engineering' to ensure electrical safety.

4. Acceptance Standards and Quality Control
Acceptance is divided into three parts: material acceptance, factory production acceptance, and on-site installation acceptance. Main control items (such as structural strength and fire rating) must be 100% qualified, with the pass rate for general items not less than 80%. The construction unit must establish a quality traceability system, and the supervision unit may send representatives to supervise on-site to ensure all links comply with standards such as the 'Technical Standard for Modular Container Houses'.

5. Safety and Environmental Requirements
Construction must follow the 'Technical Code for Safety of Construction Hoisting Engineering', strengthening on-site safety management and regularly inspecting for hazards. Materials must be environmentally friendly and recyclable, reducing dust pollution and complying with low-carbon economic requirements. In terms of service life, simple containers last about 5-8 years, while custom-made houses can last over 30 years, requiring regular replacement of aged components.