Container House Structural Specifications
The structural specifications for container houses primarily cover aspects such as frame materials, load-bearing design, modular assembly, corrosion and fire resistance, and joint treatment.
Frame Materials and Load-Bearing Capacity: The core frame of container houses is mostly made of all-steel structures, such as welded section steel, ensuring sufficient resistance to compression, wind, and earthquakes. For example, the packing boxes from Suzhou Zhongnan achieve a wind resistance rating of Level 12 and an earthquake resistance rating of Level 8 under extreme conditions, with a frame deformation rate of only 0.18%, significantly lower than the industry's acceptable threshold of 0.3%. The thickness of the steel in main beams and columns, as well as the fullness of the welding process, directly affect the load-bearing capacity. National standard containers generally have superior load-bearing designs compared to ordinary mobile homes, with 20-foot containers capable of bearing up to 25 tons and 40-foot containers up to 45 tons.
Modular Assembly and Expandability: Container houses achieve rapid assembly and expansion through modular design. Each container is of standard size but can be combined to form multi-story or row buildings, such as conference rooms and dormitory buildings. When designing, it is essential to confirm whether the manufacturer possesses the connection technology for multi-story frames and the ability to handle waterproof joints to ensure overall stability and waterproofing after assembly. For example, double- or triple-story container buildings require special attention to the bending and shear forces in beam-column structures and the reasonable distribution of columns.
Corrosion and Fire Resistance Treatment: The container body must undergo overall galvanization or spray coating for corrosion resistance to extend its service life and adapt to harsh environments. For fire resistance, compliant insulation materials must be used, such as rock wool boards (density 120kg/m³, flammability Class A) or Neopor R polystyrene boards (density 18kg/m³, flammability Class B1), and it must be ensured that doors, windows, electrical systems, and other supporting facilities comply with fire safety regulations.
Structural Joints and Construction Acceptance: Joint design is crucial for the safety of container houses, including connections between beams and columns and bolt fixation of the roof and ground frames. During construction, strict adherence to allowable deviation standards is required, along with rust removal and coating treatments. Engineering acceptance should refer to relevant regulations to ensure that foundation work, structural installation, and other aspects meet design requirements.
