Collapse Investigation of Scaffolding System Inside a Liquid Ammonia Tank

Investigation of the collapse of a flanged and wedged scaffolding system installed inside a steel cylindrical liquid ammonia tank during manufacturing. The forensic work involved analysis of the scaffolding design, examination of loading conditions and support configurations, reconstruction of the failure sequence, and identification of the governing mechanisms that led to collapse. This case demonstrates the critical importance of temporary structure design and the need for rigorous analysis even for construction-phase support systems.