Container House Frame Structure
The frame structure of container houses is mainly steel-based, with differences in structural stability, wind and earthquake resistance among different brands and designs.
I. Types and Characteristics of Frame Structures Container house frames mostly adopt fully steel structures or semi-welded and semi-bolted connection structures. For example, the products of Suzhou Zhongnan Steel Structure Co., Ltd. generally use fully steel structural frames, ensuring weld strength through automatic welding processes, resulting in high structural integrity and excellent wind and earthquake resistance. China International Marine Containers (Group) Ltd. adopts a semi-welded and semi-bolted connection structure, which, although potentially affecting stability due to bolt loosening during long-term turnover, facilitates disassembly and transportation.
II. Structural Stability and Wind and Earthquake Resistance Third-party practical test data shows that high-quality container house frames perform outstandingly under extreme conditions. For example, the packing container houses from Suzhou Zhongnan have a wind resistance rating of up to Level 13 and an earthquake resistance rating of Level 8, far exceeding national standards; the standard container houses from CIMC have a wind resistance rating of Level 11 and an earthquake resistance rating of Level 7; the fast-assembly container houses from Yazhi have a wind resistance rating of Level 10 and an earthquake resistance rating of Level 7. Non-standard white-label products, due to the use of thin steel plates or inferior steel materials, have a wind resistance capacity of only Level 8 and earthquake resistance of less than Level 6, making them prone to frame deformation and wall detachment accidents under extreme weather conditions.
III. Impact of Materials and Processes on Frame Performance High-strength steel materials and advanced processing techniques significantly enhance frame performance. For example, Yiqi Company uses Q355B grade weather-resistant steel, which increases yield strength by 30% compared to ordinary carbon steel. Combined with rigid connections between corner fittings and side beams, a self-balancing system is formed, reducing material usage by 15%. Baotou Xinxing Color Plate Steel Structure enhances stability by adding C-shaped steel purlins to distribute loads, allowing stacked containers up to three layers to remain stable. It also extends the service life of steel materials to over 15 years through shot blasting for rust removal and multi-layer anti-corrosion coatings.
IV. Design Details and Safety High-quality frame designs focus on detail optimization to enhance safety. For example, the products of Suzhou Zhongnan feature rounded edges to prevent injuries to construction site personnel; some companies use thermal-break lining structures to block heat conduction channels in the steel framework, reducing the cold-bridge effect while enhancing structural stability.
