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Buildings that include weak points on purpose withstand more damage

If a building is hit with an earthquake or explosives, the entire thing can collapse – but a design balancing strong and weak structural connections lets part of it fall while preserving the rest

By Jeremy Hsu

15 May 2024

In a real-world test, part of this building collapsed while the rest remained standing

Jose M. Adam

Intentionally engineering structural weaknesses into a building can prevent catastrophic collapse. This counterintuitive strategy successfully limited damage to a two-storey concrete building in its first real-world experiment.

The innovation was inspired in part by the way lizards will sacrifice their tails to escape the clutches or jaws of predators. In this case, segments of the building’s connective structure are designed to break when stressed beyond a certain point instead of pulling down the rest of the structure. Researchers say such structural engineering could…

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