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Six dead as 862t bridge collapses onto Florida highway


Viewing the video indicates failure being initiated by a hinge forming in the top slab at its node with the inclined member. This, in turn, suggests that the end reaction of the deck weight was being transferred through the stub tower to its connection with the top slab - causing that member to act as a cantilever (something I doubt was intended by the designers). This could only occur if the connection between the bottom slab and the foot of the stub tower was insufficient to generate truss action.

Posted date

16 March, 2018

Posted time

1:52 pm