FE Civil Exam Prep 61, Reinforced Concrete Columns — Tied vs Spiral, Interaction

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: - The key difference between tied and spiral columns and why spirals are more ductile. - How to apply the correct strength reduction factors (φ): 0.65 for tied and 0.75 for spiral columns. - To master the formula for nominal axial capacity (Pn) and the adjustment factor for maximum capacity (α = 0.80 for tied, 0.85 for spiral). - How to interpret a P-M interaction diagram to check column adequacy for combined axial load and moment. - To recognize common exam traps like using the incorrect φ factor or misinterpreting the boundary of an interaction diagram. 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