Torsional Irregularity Check | ETABS Examples

Learn how to identify and check horizontal structural irregularities (Type 1: torsional irregularity) in buildings according to ASCE 7. In this video, I’ll walk you through the code definition, the torsional irregularity ratio (TIR), and how to interpret the results step by step. We’ll also cover important seismic design notes, look at a mezzanine floor example, and then see how to apply these checks directly in ETABS. Whether you’re working on earthquake-resistant design, preparing for seismic calculations, or reviewing building code requirements, this guide will make the concept clear and easy to apply. 👉 If this video helps you, don’t forget to Like, Subscribe, and Share for more seismic and earthquake engineering lessons! #StructuralEngineering #ETABS #ASCE7 #TorsionalIrregularity #EarthquakeEngineering #SeismicDesign #EngineeringEducation