This course provides a comprehensive introduction to the behavior, analysis, and design of structural steel elements and systems. Steel is one of the most versatile and widely used materials in modern civil engineering, framing everything from soaring skyscrapers to expansive industrial warehouses. Students will transition from theoretical structural analysis to practical, code-based design. The course focuses on the Limit State Design (LSD) philosophy (or Load and Resistance Factor Design (LRFD), depending on regional standards), ensuring that steel structures meet strict safety, strength, and serviceability criteria. Key Learning Objectives By the end of this course, you will be able to: Understand Material Behavior: Master the mechanical properties of structural steel, including stress-strain relationships, ductility, and residual stresses. Design Individual Components: Safely size and analyze tension members, compression members (columns), and flexural members (beams). Master Connections: Design robust bolted and welded connections, understanding how forces transfer through a structural system. Apply Building Codes: Confidently navigate and apply relevant design codes (e.g., AISC 360, IS 800, or Eurocode 3). Evaluate Stability: Understand and prevent structural failure modes such as local buckling, lateral-torsional buckling, and overall frame instability.