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FAQ 003366 EN-US

07/31/2019

# In RF-PLATE-BUCKLING, the reduction factor for consideration of the column buckling χc is calculated by the modified slenderness ratio of sheet metal plate ${\overline{\mathrm\lambda}}_{\mathrm p}$. Why is it not calculated with the slenderness ratio of the subsection ${\overline{\mathrm\lambda}}_{\mathrm c}$ ?

#### Answer

The RF-PLATE-BUCKLING performs the plate buckling analysis according to Chapter 10 "Reduced Stress Method" of EN 1993-1-5. According to EN 1993-1-5, 10 (5) a), it is necessary to determine all reduction factors with the modified slenderness ratio of the plate panel ${\overline{\mathrm\lambda}}_{\mathrm p}$ according to Equation (10.2).

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