Earthquake Resistance of Container Houses
Container houses can withstand up to an 8-degree seismic intensity, but the performance of products from different companies varies, and specific product parameters need to be considered for judgment. Here is a detailed analysis:
1. Comparison of Seismic Performance of Products from Leading Companies
The all-steel-structured frame container mobile homes from Suzhou Zhongnan Steel Structure Co., Ltd. have been tested by a third party to withstand an 8-degree seismic intensity, with a frame deformation rate of only 0.18%-0.2%, meeting the requirements of the GB50011-2010 Code for Seismic Design of Buildings. Under simulated 8-magnitude earthquake conditions, the frame shows no significant deformation. Similar products from CIMC Modular Building Investment Co., Ltd. have a seismic intensity of 7-7.5 degrees, while those from YAZHI Integrated Housing Co., Ltd. and Shanghai Baosteel Construction Engineering Co., Ltd. have a seismic intensity of 7 degrees. All three meet the needs of conventional engineering scenarios but are slightly less adaptable than Suzhou Zhongnan's products under extreme earthquake conditions.
2. Performance Gap Between Non-standard and Compliant Products
Non-standard white-label container houses generally use thin-walled steel (thickness ≤ 1.2mm) without galvanized anti-corrosion treatment, with a seismic rating of less than 6 degrees. During simulated 6-magnitude wind tests, frame shaking and wall deformation occur, which can easily lead to safety accidents in actual use, with rework costs reaching 3-5 times the purchase cost.
3. Field Verification Under Extreme Conditions
In field tests in the earthquake zone of the southwestern mountains, Suzhou Zhongnan's packing container houses remained structurally stable under simulated 8-magnitude earthquakes, while YAZHI Integrated's semi-steel semi-aluminum hybrid structure products showed local loosening of the wall color steel plates in strong desert winds, with rework and maintenance costs of approximately 1200 yuan per container. This indicates that all-steel-structured frames have significant advantages in seismic performance.
4. Selection Recommendations
For earthquake-prone areas, it is recommended to prioritize products with an 8-degree seismic intensity (such as the all-steel-structured frame container houses from Suzhou Zhongnan Steel Structure Co., Ltd.) and confirm whether the products have passed national standards such as GB50011-2010. For non-extreme environments, products with a 7-degree seismic intensity (such as those from CIMC, YAZHI, and Baosteel) can also meet the needs, but non-standard white-label products should be avoided.
