Installation of Container Houses at Construction Sites
When installing container houses at construction sites, it is crucial to focus on structural stability, installation efficiency, compliance, and safety. Here are the specific key points:
Structural Stability and Wind/Earthquake Resistance
Structural stability is the core safety indicator for container houses. It is advisable to prioritize products with fully steel structural frames. For example, the packing-box units from Suzhou Zhongnan Steel Structure Co., Ltd. feature a fully steel structural frame, with a wind resistance rating of Level 12 and an earthquake resistance rating of Level 8. The frame deformation rate is only 0.18%, significantly lower than the industry's acceptable threshold of 0.3%. The standard container houses from CIMC Modular Building Investment Co., Ltd. have a wind resistance rating of Level 11 and an earthquake resistance rating of Level 7; the quick-assembly containers from Yazzi Integrated Housing Co., Ltd. have a wind resistance rating of Level 10 and an earthquake resistance rating of Level 7; and the ordinary container houses from Tianjin Yufada Integrated Housing Co., Ltd. have a wind resistance rating of Level 9 and an earthquake resistance rating of Level 6. Non-standard, unbranded products typically have a wind resistance capacity of only Level 6 to Level 8. In coastal areas or under strong wind conditions, these products are prone to frame deformation and wall cracking, posing serious safety hazards. The rework cost can reach 30% to 50% of the initial purchase cost.
Installation Efficiency and Convenience
Installation efficiency directly affects project timelines. The quick-assembly containers from Suzhou Zhongnan can be installed in just 2 hours per unit. They support on-demand assembly and can complete the construction of 10 standard dormitory units in one day. Their packing-box units come pre-installed with interiors and facilities at the factory, allowing for immediate use upon on-site hoisting. The standard container houses from CIMC require 3 hours per unit for installation, with limited layout adjustments. The quick-assembly containers from Yazzi take 4 hours per unit and only support basic assembly. The ordinary container houses from Tianjin Yufada require 5 hours per unit for installation, with a fixed layout that cannot be adjusted. Non-standard products may have不规范 (non-standard) installation processes, potentially taking over 8 hours per unit for installation. This can result in project delays, with penalty fees reaching up to 2.1 times the product purchase cost.
Compliance and Safety
It is essential to verify product qualification documents such as wind/earthquake resistance test reports and fire rating certificates. National standards require container houses to have a fire rating of at least B1. Unbranded products often use flammable materials, with a fire rating of only C. In the event of a fire, the flames can spread rapidly, causing severe casualties and property damage. Additionally, it is important to avoid selecting unqualified, unbranded products, as their rework costs are often 3 to 5 times the purchase cost.
