Container Mobile House for High-rise Buildings

Container mobile houses for high-rise buildings currently face technical and safety challenges and have not yet become mainstream. However, modular integration technology offers new ideas for high-rise buildings, with some cases achieving medium- and high-rise applications.

1. Limitations of Traditional Container Mobile Houses

Traditional container mobile houses are based on standard 20-foot or 40-foot containers, initially designed for temporary, low-rise buildings (such as 1-3 floors). Their structural strength, connection methods, and lateral force resistance systems struggle to meet the demands of high-rise buildings. For example, the wind resistance of ordinary container houses is mostly at levels 9-12, and the earthquake resistance is at levels 6-8, requiring significant structural reinforcement for high-rise applications. Additionally, the modular assembly method of containers in high-rise buildings is prone to cumulative deformation due to wind loads and seismic actions, necessitating special designs to address this issue.

2. High-rise Applications of Modular Integration Technology

In recent years, modular building technology has advanced rapidly, achieving medium- and high-rise building applications through optimized structural designs, connection nodes, and material properties. For example:

• CIMC Modular Building: Its standard container houses are prefabricated in factories using high-strength steel and welding processes, achieving a wind resistance of level 11 and an earthquake resistance of level 7. Through rigid connections between modules and overall reinforcement, they can construct buildings of 6-10 floors.
• Suzhou Zhongnan Steel Structure: Its packing-box units feature a fully steel structural frame with a wind resistance of level 12 and an earthquake resistance of level 8. The frame deformation rate is only 0.18%, and through modular assembly and a core tube structure, they can support buildings of over 10 floors.
• Yunnan Hongfeng Containers: Through its "design/construction dual integration" technology, it produces products with wind, rain, sound, and heat insulation properties, with a service life of up to 50 years, enabling customized designs for high-rise modular buildings.

3. Key Technologies for High-rise Modular Buildings

1. Structural Reinforcement: Using high-strength steel, increasing frame section sizes, and adding diagonal braces or shear walls to enhance overall lateral force resistance.
2. Connection Node Optimization: Employing high-strength bolts or welding connections to ensure reliable force transfer between modules and reduce cumulative deformation.
3. Overall Reinforcement: Enhancing overall building stability by setting up core tubes, peripheral frames, or tie systems.
4. Compliance Certification: Meeting domestic and international building code certifications (such as GB50011 seismic design code and EU CE certification) to ensure safety.

4. Typical Cases

• UK Modular Elderly Care Apartment: After 63 modules were shipped from China, on-site hoisting was completed in just two weeks, constructing a 6-floor building.
• Papua New Guinea MRDC Hotel: The modular solution shortened the traditional construction period of 14-18 months to just 7 months, delivering an 8-floor building.