Kenya Nairobi High-Rise Collapse Analysis Points to 'Pancake' Failure Mode

Key summary

Professor Dr. Amorn Pimanmas, President of the Thai Structural Engineers Association and a lecturer at Kasetsart University, analyzed the collapse of an 18-story building under construction in Eastleigh, Nairobi, Kenya. He identified the event as a vertical gravity collapse characterized by progressive failure starting from the lower floors, resulting in a 'pancake' style destruction where upper sections crumbled onto lower ones like falling dominoes. The professor noted that this type of collapse can occur without an earthquake if primary load-bearing elements such as columns or walls lose their capacity. He highlighted three potential engineering factors: substandard construction materials (concrete or rebar with insufficient strength), design errors involving incorrect force calculations or undersized structural components, and construction deviations including unauthorized additional floors or structural modifications. The analysis remains preliminary until official investigations confirm the specific cause.