Issue #7
This week’s StructEd Bulletin highlights a new experimental study showing how thin‐walled open‐section steel beams resist “pure bending” far less cleanly than theory suggests. Even with shear‐center loading, small geometric imperfections and gravity‐induced torsion drove coupled local and global buckling, underscoring the limits of idealized bending‐only models. RISAConnection v17 also arrives with AISC 360‐22 support, expanded shape libraries, and improved HSS and base‐plate workflows. The featured case study reviews several welded‐steel failures where brittle fracture, hydrogen embrittlement, and heat‐affected‐zone microstructures dominated behavior — a reminder that modern alloys demand more careful weld preparation than traditional mild steels. Rounding out the issue are three free upcoming PDH sessions covering mass timber construction types, project‐management fundamentals, and advanced fire‐life‐safety design.
