Question 2
A fixed-fixed steel column has length of \( 3 \mathrm{~m} \), radius of gyration of column cross sectional area of \( 23.09 \mathrm{~mm} \) and modulus of elasticity of 210 GPa and yield strength of \( 2.20 \mathrm{MPa} \), calculate the allowable stress with a safety factor of 2
For \( \mathrm{A}<\mathrm{B} \) use:
\[
\sigma_{c r}=\left[0.658^{\left({ }^{\sigma_{Y}} / \sigma_{E}\right)}\right] \sigma_{Y}
\]
For \( A>B \) use:
\[
\sigma_{c r}=0.877 \sigma_{R}
\]
For \( A=B \) use:
\[
\sigma_{c r}=0.39 \sigma_{Y}
\]