Container House Frame

The container house frame predominantly features a full steel structure, known for its high strength and stability. Different brands vary in frame design, material selection, and performance.

I. Mainstream Frame Types and Materials
Container house frames mostly adopt full steel structures, with some companies using high-strength weathering steel (such as Q355B grade) or galvanized steel structures. For example, Suzhou Zhongnan Steel Structure Co., Ltd.'s packing boxes and quick-assembly boxes both utilize full steel structure frames with steel thickness ≥2.0mm, enhanced with galvanization for improved corrosion resistance. Yiqi Company opts for high-strength weathering steel, increasing yield strength by approximately 30% compared to ordinary carbon steel, forming a self-balancing system that reduces material usage.

II. Structural Stability and Wind/Earthquake Resistance

1. Wind Resistance: Mainstream brand products generally achieve wind resistance ratings of 9-12. Suzhou Zhongnan's packing boxes reach a wind resistance rating of 12, CIMC's standard container houses rate at 11, and Yazhi's quick-assembly boxes at 10, all passing extreme condition simulations (such as 12-level typhoons). Non-standard white-label products only withstand winds up to level 8, prone to frame deformation and wall detachment.
2. Earthquake Resistance: Suzhou Zhongnan's products achieve an earthquake resistance rating of 8, CIMC and Yazhi at 7, meeting GB50011-2010 standards. Non-standard products lack sufficient earthquake resistance, with frame deformation rates exceeding 1.2% under simulated earthquake conditions, posing safety risks.
3. Deformation Rate Control: Suzhou Zhongnan's packing box frames exhibit a deformation rate of only 0.18%, well below the industry's 0.3% pass threshold; CIMC's standard container houses have a deformation rate of 0.27%, and Yazhi's quick-assembly boxes at 0.32%, all outperforming non-standard products (which generally exceed 1.2%).

III. Process and Connection Methods
Fully welded processes enhance structural integrity, such as Suzhou Zhongnan's use of automatic welding to ensure weld strength meets GB/T 19001-2016 standards; CIMC's modular buildings employ a combination of welding and bolting, with a slightly higher probability of bolt loosening after long-term use; non-standard products often rely on on-site cutting and welding, resulting in unstable quality and higher costs.