Attention #geotechnicalengineers, #bridgeengineers and #marineengineers: #Ship impacts can apply massive loads on #bridge piers. In this example, I took a typical 100k vessel impact load, applied 30 ft above the cap initially, and progressively increased the load to 20000 k, which is likely close but perhaps smaller than the load that the Francis Scott bridge experienced. This is an imaginary bridge pier with 12 - 90 inch diameter piles. At the 100k typical #ASCE7-22 impact load the pier displaces about 0.5 inches. At 20000k the displacements increase to 29 inches and the piles fail structurally. The analysis was performed with our #DeepFND #deepfoundation software and included water flow loads. This unfortunate event reminds us that the public should pay more attention to our #infrastructure before it collapses. Follow Deep Excavation LLC for more.
Pedro C.
9mo
Nice Dimitros!👌.Only one note,piles in that sherpiles are usually alone.In many cases they have not a top slap,but in any case a good modelling.
Torben Forsberg
8mo
Based only on the video I saw on LinkedIn, my guess is that the load on the bridge in Baltimore was perhaps 200 MN, not 20000 kN as in your example. Or does 20000k mean something else?
John Gray
9mo
Fixing the top of the piles is one way but creates issues with the deck. Quay walls also usually have battered poles to a relieving platform.
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