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 ¿Por qué colapsó el puente de Baltimore? infographic
El gráfico explñica por qué todo el puente colapsó cuando solamente un pila o pilar fue golpeado, además de los sistemas de protección de pilas.


¿Por qué colapsó el puente de Baltimore?

By Phil Bainbridge

March 26, 2024 - El Puente Francis Scott Key que colapsó por el choque del buque portacontenedores MV Dali, que salía del Puerto de Baltimore, se construyó antes de que entratan en vigor los estándares más recientes para protección de puentes.

With the world’s third longest continuous truss bridge span, at 366m, the bridge was designed to distribute its load along its entire length, to span longer distances with less material, creating a more efficient structure than if the three spans were all independent of one another. However, this fracture critical design lacks redundancy, meaning that if one span failed, all of them would collapse.

The bridge was completed in 1977, three years before the 1980 collapse of the Sunshine Skyway Bridge which crossed Tampa Bay in Florida, and which led to new regulations for protection of all new bridges, including artificial islands around the piers, “dolphins” - circular
barriers filled with concrete or sand to divert ships and absorb the energy of an impact, and fenders, crushable concrete boxes wrapped around the pier to protect it from impact.

These were not applied to existing bridges however, and while some of them were implemented to a limited degree in Baltimore, they may have been insufficient and would have been unable to deal with a head-on collision from a modern cargo ship like the Dali, which, travelling at just eight knots, could have imparted 1.2 million joules of energy.

PUBLISHED: 29/03/2024; STORY: Graphic News; PICTURES: Newscom