The size of columns in a steel frame structure varies greatly depending on the specific design requirements, load considerations, and building codes. There is no single answer to this question.
However, to give you an idea of typical sizes, here are some examples of Universal Column dimensions:
Examples of Universal Column Sizes (mm)
| Size (mm) | Weight (kg/m) | Height (H) (mm) |
|---|---|---|
| 203 x 203 x 86 | 86 | 222.3 |
| 254 x 254 x 73 | 73.1 | 254 |
| 254 x 254 x 89 | 89 | 260.4 |
| 254 x 254 x 107 | 107.1 | 266.7 |
Factors influencing column size:
- Load: The primary factor is the amount of weight the column needs to support, including dead loads (weight of the structure itself), live loads (occupants, furniture), and environmental loads (wind, snow).
- Height: Taller columns are more susceptible to buckling and require larger cross-sections or additional bracing.
- Span: The distance between columns affects the load distribution and the required column size.
- Material Strength: The grade of steel used affects the column's load-bearing capacity. Higher strength steel allows for smaller columns.
- Building Codes: Local building codes and regulations dictate minimum size and strength requirements for structural elements.
- Design Criteria: Specific design requirements, such as deflection limits or fire resistance, can influence column size.
Therefore, determining the appropriate size for steel columns requires a structural engineer's assessment based on the specific project parameters. You cannot simply pick a size without considering all the relevant factors.
