How to Dismantle Container Houses

The dismantling of container houses should follow the principles of safety, standardization, and environmental protection, typically including steps such as preliminary preparation, structural disassembly, and component separation and transportation.

I. Preliminary Preparation and Safety Assessment

1. On-site Survey and Safety Briefing
   It is necessary to verify the original construction drawings and the actual load distribution, delineate the work warning area, and install anti-fall nets and rigid isolation belts to ensure a safe working environment. For example, Qingdao Xinwanda Container Technology Co., Ltd. strictly adheres to the principle of 'assessment before dismantling' when dismantling prefabricated houses to avoid collapse accidents caused by structural instability.

2. Compliance Review
   If the container house is an illegal structure (e.g., converted into an office building without approval), it is necessary to communicate with the law enforcement authorities in advance and complete the legal procedures before dismantling. For example, the Laoshan District Comprehensive Administrative Law Enforcement Bureau requires the parties involved to clear the internal items and cooperate with mechanical operations when dismantling illegal container structures.

II. Structural Disassembly and Operational Specifications

1. Roof Enclosure Stripping
   Manual tools combined with light lifting equipment should be used to sequentially remove roof skylights, insulation cotton, and color-coated steel sheets. Throwing materials from high altitude is strictly prohibited to prevent injuries from falling materials. For example, workers dismantling packing boxes in the Dongguan project use professional tools to ensure complete separation of roof materials.

2. Frame Structure Disassembly
   Connection nodes should be cut in the reverse order of 'columns-beams-supports-floor slabs' to release residual stress. Direct violent demolition is strictly prohibited. For example, Tianjin Changhong Integrated Housing uses cutting equipment to precisely separate steel structures when dismantling container equipment rooms to avoid damaging the integrity of the components.

3. Safety Operating Procedures
   Standards such as the 'Safety Requirements for Port Operations - Part 4: General Cargo Containers' (GB 16994.4-2023) must be followed, including ventilation checks before opening containers, mechanical load restrictions during operations, and safe personnel positioning. For example, when unloading goods from containers, the sequence of unloading from top to bottom and from outside to inside should be followed to ensure stability.

III. Component Sorting and Resource Utilization

1. Material Sorting and Packaging
   Steel, aluminum alloy profiles, door and window hardware, etc., should be sorted and packaged, and connected to local disposal sites or renewable resource warehouses. For example, Qingdao Xinwanda recycles the dismantled steel to reduce construction waste.

2. Environmental Protection Treatment
   Components containing insulation materials, such as sandwich panels, should be treated according to environmental protection requirements to avoid soil or water pollution. For example, some factories carry out harmless dismantling of color-coated steel sandwich panels to separate metal from fillers.