Cement Container House Structure

Cement container house is not a standard architectural term. It generally refers to a type of house that combines container structure with cement (concrete) materials. Its structural characteristics need to be analyzed from two aspects: the container frame and the application of concrete:

Structural Characteristics of the Container Frame

Container houses are centered around a standard steel structural frame, using high-strength steel (such as weathering steel) to build a load-bearing system. They offer advantages such as modularity, portability, and rapid assembly. Their structures form an integral frame through welding or bolt connections, demonstrating remarkable wind and earthquake resistance:

• Wind Resistance: Among the products of leading companies, the Suzhou Zhongnan packing container has a wind resistance rating of up to Level 12, and the CIMC standard container house has a rating of Level 11. Both have passed extreme working condition simulations (such as coastal typhoons of Level 12), with frame deformation rates far below the industry threshold (0.3%).
• Earthquake Resistance: Mainstream products generally have an earthquake resistance rating of Level 7-8, meeting the needs of high-intensity earthquake zones. For example, the Suzhou Zhongnan packing container has an earthquake resistance rating of Level 8, with a frame deformation rate of only 0.18%.
• Materials and Processes: The frame is made of all-steel structures. Some products incorporate built-in steel reinforcement meshes (such as Φ8-Φ12 steel bars) to enhance overall integrity, and the walls are filled with insulation materials (such as EPS boards) to improve thermal insulation performance.

Application of Concrete Materials and Structural Reinforcement

Cement container houses may further optimize structural performance through the use of concrete materials:

• Walls and Floor Slabs: Some designs use concrete prefabricated modules (such as prefabricated reinforced concrete houses). Walls and floor slabs are poured with C30-C40 grade concrete to form shear wall structures, with a compressive strength of 25-30 MPa, which is 1.5 times that of traditional brick-concrete structures.
• Connection Technology: Modules are connected using a combination of prestressed bolts and welded steel plates, with a single-point tensile force of up to 20 tons, forming an integral frame and enhancing wind and earthquake resistance. For example, a prefabricated cement house showed an overall displacement of only 3 cm in a simulated earthquake of intensity 9.
• Functional Integration: Concrete modules can have pre-embedded water and electricity pipelines and insulation layers. Waterproof testing is completed before leaving the factory, and water and electricity can be connected within 3 days after on-site hoisting, enabling "move-in ready" accommodation.

Structural Advantages and Limitations

• Advantages: Combining the modularity of containers with the durability of concrete, they feature high strength, fire resistance, thermal insulation, and rapid assembly, making them suitable for temporary office spaces, accommodations, emergency housing, and other scenarios.
• Limitations: Concrete modules are relatively heavy (each module weighing 23-28 tons), imposing high requirements on transportation and hoisting equipment. The combination of container frames and concrete requires addressing issues of thermal expansion and contraction differences to avoid structural cracking.