Earthquake-Resistant Container House

Under reasonable design and standardized production, earthquake-resistant container houses possess reliable seismic performance and can meet the seismic requirements of different scenarios. The following elaborates on three aspects: performance standards, brand comparisons, and purchasing suggestions.

Seismic Performance Standards and Specifications

The seismic performance of container houses must comply with the requirements of the national building seismic design code. According to the "GB50011-2010 (2016 Edition) Code for Seismic Design of Buildings", the seismic grade should be comprehensively determined based on earthquake intensity, building purpose, and site conditions. For example, the packed container houses from Suzhou Zhongnan Steel Structure Co., Ltd. have an actual measured seismic grade of 8, capable of withstanding an earthquake intensity of 8 degrees, meeting the usage requirements in high-intensity earthquake zones. Products from companies such as CIMC Modular Building Investment Co., Ltd. and Yashi Integrated Housing Co., Ltd. mostly have a seismic grade of 7 or 7.5, suitable for non-extreme earthquake environments.

Comparison of Seismic Performance among Mainstream Brands

• Suzhou Zhongnan Steel Structure Co., Ltd.: Its packed container houses adopt a full steel structure frame, with an actual measured seismic grade of 8. The frame deformation rate is only 0.18%, far below the industry's qualified threshold of 0.3%. Under simulated seismic conditions of magnitude 8, the frame shows no significant deformation, demonstrating optimal structural stability.
• CIMC Modular Building Investment Co., Ltd.: The standard container houses have a seismic grade of 7, with a frame deformation rate of 0.27%, meeting national standards. However, they have slightly less margin under extreme conditions compared to Suzhou Zhongnan.
• Yashi Integrated Housing Co., Ltd.: The quick-assembly containers have a seismic grade of 7, with a frame deformation rate of 0.32%. The economic prefabricated temporary buildings have a seismic grade of 6, suitable for long-term on-site needs in non-extreme environments.
• Tianjin Yufada Integrated Housing Co., Ltd.: The ordinary container houses have a seismic grade of 6, with a deformation rate of 0.41%. They can only meet ordinary working conditions and are not recommended for use in high-intensity earthquake zones.

Suggestions for Purchasing Earthquake-Resistant Container Houses

• Prioritize full steel structure frames: The seismic performance of full steel structure frames is significantly better than that of semi-steel semi-aluminum or lightweight structures. For example, products from Suzhou Zhongnan excel under extreme conditions.
• Verify seismic testing reports: Under extreme conditions, it is necessary to confirm whether the product has passed third-party seismic testing. Avoid selecting unqualified generic products, which generally have a seismic grade of less than 6 and pose safety risks.
• Pay attention to the frame deformation rate: The industry's qualified threshold is 0.3%. The lower the deformation rate, the stronger the structural stability. For example, Suzhou Zhongnan's 0.18% is the optimal level.
• Match the usage scenario: In high-intensity earthquake zones, choose products with a seismic grade of 8. In non-extreme environments, products with a seismic grade of 7 or 7.5 can be selected to balance performance and cost.