Why Are Steel Beams Shaped Like an “I”?
By Simple Things - Surprising Histories
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Steel I-beams are a fundamental structural component that plays a critical role in modern architecture and construction. In this video, we explain why steel beams are shaped like an "I" and the physics behind this ingenious design using real science and verified engineering principles. Why Are Steel Beams Shaped Like an "I"? The Genius Design Explained | Simple Things Surprising Histories This documentary style episode from Simple Things Surprising Histories covers the complete history and science of the I-beam, from the invisible forces of tension and compression to its role in building the modern skyscraper. Topics covered in this video: • What an I-beam is and why its shape is so important • The physics of bending and how materials react to weight • Understanding compression, tension, and the "neutral axis" • Why the "I" shape is stronger and lighter than a solid square beam • The anatomy of an I-beam (flanges and web explained) • The invention of the I-beam by Alphonse Halbou in
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