@amazeifystore: One small hanger change doubled the load. ⚠️ The Hyatt Regency walkway concept used continuous rods, but a later revision suspended the lower walkway from the upper box beams. That quietly doubled the load on the upper connection, without strengthening it. In July 1981, the connection failed and both walkways collapsed. The engineering lesson: every geometry change needs a fresh force-path check. What design change would you audit first? Save this for your next structural review. #EngineeringForensics #StructuralEngineering #EngineeringFailure #HyattRegency #StructuralSafety #CivilEngineering #ForensicEngineering #EngineeringLessons #ConstructionSafety #DesignReview