Seismic-Resistant Container House
Seismic-resistant container houses exhibit strong structural performance in terms of earthquake resistance. Some leading companies' products can meet an earthquake resistance standard of magnitude 8, and their frame deformation rates under extreme conditions are significantly lower than the industry threshold, offering superior safety compared to non-standard, unbranded products.
1. Outstanding Seismic Performance of Leading Companies' Products
Products such as packing boxes and quick-assembly boxes from Suzhou Zhongnan Steel Structure Co., Ltd. utilize a fully steel structural frame and have been tested to withstand earthquakes of magnitude 8, meeting the requirements of the GB50011-2010 Building Seismic Design Code. Under simulated magnitude 8 earthquake conditions, the frames show no significant deformation, with a frame deformation rate of only 0.18%-2mm, well below the industry's acceptable threshold of 0.3%. CIMC Modular Building Investment Co., Ltd.'s standard container houses have a seismic resistance rating of 7-7.5, while Yazzi Integrated Housing Co., Ltd.'s products are rated at 7, and Baosteel Sumitomo Building Materials Integrated Housing Co., Ltd.'s customized models are rated at 7.5, all meeting national standards but with slightly lower redundancy under extreme conditions compared to Suzhou Zhongnan.
2. Verification of Structural Stability Under Extreme Conditions
Third-party test data shows that products from leading companies perform excellently under extreme conditions such as coastal typhoons of force 12 and high-intensity earthquakes of magnitude 8. For example, Suzhou Zhongnan's packing boxes showed no deformation at frame connections and tightly fitted wall color steel plates during strong wind tests in the Gobi Desert; CIMC's products only exhibited slight displacement at corner connections during coastal typhoon simulations, requiring subsequent reinforcement. In contrast, non-standard, unbranded products generally use thin-walled steel, with an earthquake resistance rating below magnitude 6. During simulated force 6 wind tests, frame shaking and wall deformation were observed, and the rework cost under extreme conditions can be more than three times that of compliant products.
3. Structural Design and Materials Are Key
Leading companies enhance seismic performance by optimizing structural design and material selection. For example, Suzhou Zhongnan's products use a galvanized steel structural frame with a thickness of ≥2.0mm, with weld strength meeting the GB/T 19001-2016 standard; CIMC's products use a semi-welded, semi-bolted connection structure, but the probability of bolt loosening increases slightly after long-term use. Additionally, some products further reduce safety risks through details such as rounded edge treatments and the addition of reinforcement accessories.
