Steel Column Design Flashcards
How are the section properties of the column found?
Using the table of the interactive blue book, utilising the section designation provided in the question
Does overall cross-section classification need determining in steel column design?
Yes, same as in beam design using the section properties obtained from the blue book.
How is effective length calculated?
Where is the effective length factor found?
Using the inter-storey height multiplied by the effective length factor found in table S6
What must be calculated after the effective length?
Ncr
How is Fy determined?
Using grade of steel in the question combined with table S1
What needs to be calculated after Ncr (elastic critical buckling load)
?
The non dimensional slenderness
What is calculated after the non-dimensional slenderness?
h/b
How is the buckling curve determined?
Which axis is it determined at?
Using the value of h/b in combination with table S7
Z-Z
What table provides a value for the imperfection factor (alpha) based on the buckling curve?
Table S8
When the non-dimensional slenderness and the imperfection factor is known, what can be calculated next?
The buckling parameter (Theta)
After the buckling parameter is calculated, what must be done next?
What are the two methods of doing this?
The reduction factor (weird) X must be calculated using the formula or table S9
When is Design buckling (Compression) resistance calculated?
When weird X has been calculated
How is a column determined to be suitable in buckling resistance?
When the design buckling resistance is greater than the design axial load
