Bridge Design for vessel impact. A 🧵 the Brooklyn Bridge.
The Brooklyn Bridge is a cable stayed suspension bridge with a main span length of 1,595 ft-6 in.
The bridge provides a 127 ft vertical clearance over the East River in New York.
The ship that bridge was 155 ft tall. 1/x
The Brooklyn Bridge is a cable stayed suspension bridge with a main span length of 1,595 ft-6 in.
The bridge provides a 127 ft vertical clearance over the East River in New York.
The ship that bridge was 155 ft tall. 1/x
The vessel that struck the Brooklyn Bridge is the Cuauhtémoc and it is a Mexican Navy training ship.
The ship appears to first struck a working platform and then proceeded to strike the superstructure of the bridge.
What is the superstructure of the Brooklyn Bridge? 2/x
The ship appears to first struck a working platform and then proceeded to strike the superstructure of the bridge.
What is the superstructure of the Brooklyn Bridge? 2/x
The superstructure of a bridge is what spans between the supports (called substructures).
The deck of the Brooklyn Bridge is supported by structural steel trusses.
The trusses are supported by suspenders that hang from the stay cables. 3/x
The deck of the Brooklyn Bridge is supported by structural steel trusses.
The trusses are supported by suspenders that hang from the stay cables. 3/x
This video shows the tallest mast of the training ship striking the superstructure of the Brooklyn Bridge.
It struck the edge beam truss of the bridge. 4/x
It struck the edge beam truss of the bridge. 4/x
The Brooklyn Bridge was opened in 1883 and at the the longest suspension bridge in the world when it was opened.
Engineers conservatively designed the bridge to be 8 times stronger than needed, but due to poorer quality materials it only resulted in 4 times as strong. 5/x
Engineers conservatively designed the bridge to be 8 times stronger than needed, but due to poorer quality materials it only resulted in 4 times as strong. 5/x
This conservative design for the Brooklyn Bridge benefits the resiliency of the historic structure.
Since the bridge has been reopened to traffic any damage from this ship impact was fortunately not critical. 6/x
Since the bridge has been reopened to traffic any damage from this ship impact was fortunately not critical. 6/x
Thanks for reading my thread. I am a Professional Engineer and Bridge Designer.
Let me know any questions and would be happy to answer some.
I will keep up with updates on the vessel impact that occurred on the Brooklyn Bridge. 7/7
Let me know any questions and would be happy to answer some.
I will keep up with updates on the vessel impact that occurred on the Brooklyn Bridge. 7/7
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