Columns in Container Houses

The columns in container houses come in a variety of types, and the selection of materials and sizes needs to be combined with specific needs, each with its own characteristics in terms of structural stability, load-bearing capacity, and ease of installation.

Types and Material Characteristics of Columns

The columns in container houses are primarily made of steel, with common types including angle steel columns and square steel columns.
Angle steel columns feature an L-shaped cross-section, offering outstanding resistance to bending and torsion. They are suitable for scenarios with significant lateral forces, such as temporary housing on construction sites. Their ease of installation is remarkable, allowing for quick connection via bolts or welding, which aligns well with modular assembly requirements. Additionally, they are cost-effective, making them the preferred choice for projects with limited budgets.
Square steel columns have a uniform cross-section, providing stronger resistance to compression and bending. They are suitable for high-load scenarios, such as commercial container offices or high-end residential containers. Their smooth surface enhances aesthetics, and some are made of galvanized or stainless steel, offering better corrosion resistance than ordinary angle steel, making them suitable for long-term use or humid environments.

Size Selection and Suitable Scenarios

The size of the columns should be determined based on factors such as the type of house, wind pressure, wall thickness, and load:

• Light-duty steel columns: With a diameter of ≤8 cm and a wall thickness of ≤1.5 mm, they are used for light-duty structures such as container residences or mobile exhibition halls, where the load-bearing requirements are relatively low.
• Standard steel columns: With a diameter of >8 cm and a wall thickness of ≥1.5 mm, they are suitable for medium-load scenarios such as industrial plants or offices.
• High-strength steel columns: With a tensile strength of ≥400 MPa, they are used for large-span structures such as container bridges or roof trusses, where heavy loads need to be supported.

Application Scenarios and Innovative Design

Columns play a central load-bearing role in container buildings. The corner columns of a single container serve as independent load-bearing units. When multiple containers are stacked, the columns below directly transfer the load from the containers above, forming a stable structure. Their standardized corner fitting design (i.e., the "joints") supports quick stacking and fixation, offering significant advantages in scenarios such as temporary buildings and emergency facilities, where deployment time can be greatly reduced.

Installation Considerations

• Material thickness: It is recommended that the column thickness be ≥3 mm to ensure structural strength. Further thickening may be required for higher heights or greater load-bearing demands.
• Corrosion protection: In humid or corrosive environments, galvanized or stainless steel materials should be prioritized to extend service life.
• Installation accuracy: The verticality error should be controlled within ±2 mm to avoid overall structural instability and safety issues caused by tilting.