Sampoong · Anatomy of a collapse

Orbit: drag · Zoom: wheel/pinch · Section is explanatory; subgrade exposure and missing front layers are not a dated site photograph.

Public visual records guide the largely solid pink facade and surviving cores. Gardner, Huh and Chung describe flat plates, round upper columns of600 mm,300 mm slabs and local drop panels; their discussion also allows uncertainty between a fifth-floor and roof connection initiating failure. The grid, envelope, cladding, damage, layer timing and every particle are estimated. No measured collapse duration, physics validation, original plan imagery, people or vehicles.502 people died in the disaster.