FE Civil Exam Prep 58, Steel Column Design — Slenderness and Buckling
Aug 5, 2026
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams.
In this episode you will learn:
- How to correctly calculate the slenderness ratio (KL/r) for steel columns.
- The importance of selecting the correct effective length factor (K) based on column end conditions.
- Why the weak-axis radius of gyration (r_y) is the critical value for buckling in unbraced wide-flange shapes.
- How to apply the AISC threshold of 4.71√(E/F_y) to distinguish between elastic (slender) and inelastic (stocky) buckling.
- How to avoid common FE exam traps, such as unit conversions and selecting the incorrect buckling stress formula.
For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep
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