The “Steelquake” structure corresponds to a two-story frame as depicted in the figure below. It was investigated during the European COST F3 action as benchmark example to compare different damage identification algorithms at the European Joint Research Center JRC in Ispra, Italy. The main dimensions are 8m x 3m x 9m. The stories are a composite of corrugated steel sheets supporting a concrete slab having orthotropic elastic characteristics. The stories are connected by welded vertical steel columns and horizontal steel beams. The structure can be interpreted as a module of a high-rise building, which has been loaded via shakers to simulate an earthquake-like loading. During this loading, damage (cracks) occurred at several locations which had to be detected.

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