Quote:
Originally Posted by Sunny Day
The Hyatt walkway collapsed because of poor design, poor construction and most important poor planning. It was designed for a few people to walk over at a time. They didn't know that the Hyatt would hold senior citizen Tea Dances where large groups of people would be on the walkways swaying to the music.
Just like armies don't have soldiers march over a bridge. It creates too much vibration. They are ordered to stroll over.
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According to the Wikipedia page, even the original design of the walkway was not up to code... but what was built was even weaker., barely able to support itself with zero pedestrian load. This wasn't just a case of excessive loading or lockstep causing resonance, it was flawed from the start.