Baltimore: Panayiotis Karydis explains why the bridge collapsed like a card – The comparison with Riou – Antirio

The reasons that led to the collapse of Francis Scott Key in the post-impact impact of the Dali ship was explained by Professor Emeritus of the National Technical University of Athens and expert in anti-seismic structures, Panagiotis Karydis. Explaining why the bridge in Baltimore collapsed like a deck of cards, Panayiotis Karydes compared to the construction of the bridge of Riou-Antirio. “This issue is similar to the calculations we do against seismic stress. Specifically, the Riou-Antirio bridge is based on four mesopathra in the sea, including the breach of the Corinthian Gulf. So it has been estimated that the bridge concerned can withstand without collapse, to withstand a relative movement of one inter-dwelling over the other, some measures. That is, if it moves because of the fault, some measure of each other will not collapse. This obviously did not happen in this case because it has simply not been calculated earthquake-proofly,” said Mr. Karydes, speaking to ERT. “Maryland is not in a United States earthquake zone. So the bridge collapsed like a card. If it was anti-seismically studied and constructed, this would almost never happen, of whatever material it was made, concrete or metal,” the professor added. Panayiotis Karydis also noted that during the static and anti-seismic study of the bridge not only scenarios based on Richters but also the intensity of the earthquake are calculated: “It’s not just the Richters, it’s the intensity of the earthquake, the accelerations for an earthquake repeat margin of 2000 years, which means it can last without falling apart, there’s the key to all our earthquake structures and buildings, to withstand no matter how big an earthquake is, without falling apart.” “It’s about as if there was an earthquake simulation on this bridge (Baltimore) and it didn’t stand the vibration, the vibration, the powerful from impact, or the distortion of support,” said the professor, who also stood on the fact that “five minutes before impact, it had been seen that the ship was heading on the bridge pillar.”