In Turchia il "collasso pancake" ha causato il crollo di tantissimi edifici. Di che si tratta?

In Turkey, the earthquake caused the collapse of numerous buildings through a phenomenon known as the "pancake effect." This type of collapse causes the complete destruction of the building, which folds in on itself, and is caused by the presence of a weak floor, that is, a floor—usually the ground floor—on which all the earthquake energy is discharged. In the case of Turkey, this is the main cause of collapses, exacerbated by the lack of seismic protection on most buildings in that area of ​​the country. 00:00 How buildings collapsed during the earthquake in Turkey and Syria 00:40 Characteristics of some of the collapsed buildings 01:10 An architectural flaw: the weak floor 01:58 What happens to a building in an earthquake? 2:50 Pancake collapse, the dynamics of building collapses in Turkey 3:45 The lack of seismic-resistant elements Credit: EarthquakeSim Laurea University of Applied Sciences, Finland - Kai Kostack, Oliver Walter Newton Energy University of California San Diego Oxlaey Hudson Yards Nk_Lifter earth.44 OUR OTHER RECOMMENDED VIDEOS: -   • Luci telluriche durante il terremoto in Tu...   -   • Faglie a fiore del terremoto in Turchia: c...   -   • Perché il terremoto in Turchia e Siria è s...   Earthquake-resistant buildings in Japan, a virtuous example: https://www.geopop.it/video/giappone-...