How much time would the people on the Brooklyn Bridge have to get off if all four main cables failed simultaneously? Are we talking about an immediate collapse the second the cables are severed, or are we talking some swaying back-and-forth for several seconds/minutes before it collapses?
The only examples I can find are the Morbi Bridge Disaster, and another pedestrian suspension bridge collapse that occurred shortly after, which lead me to believe the collapse is rather immediate; however, these are highly imperfect examples as the Brooklyn Bridge is worlds away from that bridge in terms of design and robustness. The only other suspension bridge collapse I have found is the Tacoma Narrows Bridge, but if I understand correctly, the cables on that bridge never snapped, the deck simply tore itself apart from the shaking of the bridge. I did find this video of the Fort Steuben Bridge being brought down by a controlled det, but because of the way it was brought down, all at once, it doesn't tell me about the stability of a suspension bridge without its cables.
So, the question is, if all four main cables of the Brooklyn Bridge simultaneously failed on one side where the cables connect to the ground, how long would it take for the bridge to collapse? If the bridge does not immediately collapse, I imagine how long it stands is affected by the load on it, so simulate any load you want, just make sure you state what you used in your answer. Also, the answer does not have to be specifically for the Brooklyn Bridge, I will accept the answer for any major suspension bridge; however, if you do answer for another bridge, please explain how the bridge generally compares with the Brooklyn Bridge, i.e. how many main cables does that bridge have and how big are they in comparison, as well as the spans of the bridge.