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by jephir
3009 days ago
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The FIU bridge is truss bridge, not a cable-stayed bridge, see this NTSB update [1]. The bridge collapsed because it relied on a single truss with no backup to support the weight if it failed. This created a single point of failure where the collapse of any member (diagonal segment) would collapse the entire bridge. There is no indication that ACB contributed to this collapse, rather, this was a faulty design that would have also posed a risk using traditional construction techniques. [1] https://youtu.be/u3Gj1Nu_kjo?t=5m8s |
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