Reconnaissance after the 2016 Kaikoura EQ (New Zealand)
Directly from the reality, I learnt about the structural performance of the most severely damaged bridges which in most cases suffered major damage without total collapse. In my opinion, this is an example of very good design.
Interestingly, in some regions the vertical peak ground acceleration (PGA) was measured to be 2.7g. This is basically something able to lift objects from the ground. There is evidence that this happened for at least one bridge deck, which suffered unseating from its rubber bearing pads.
Below I’m showing a few photos from the reconnaissance.