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re: Does Kyle Field Still Sway?
Posted on 1/30/15 at 12:22 pm to Projectpat
Posted on 1/30/15 at 12:22 pm to Projectpat
That doesn't look that bad at all.
The language in the codes changed a little regarding deflections but L/400 is still accepted as the limit for structures with masonry.
At 100' off the ground 3" of movement either direction is acceptable, so that means you can have up to 6" of movement.
The coolest part about that video is that the movement has more to do with the sound waves approaching the structures natural frequency. It's the same principals behind Tesla's oscillator that he claimed could take down the empire state building. My favorite thing about the oscillator is:
The language in the codes changed a little regarding deflections but L/400 is still accepted as the limit for structures with masonry.
At 100' off the ground 3" of movement either direction is acceptable, so that means you can have up to 6" of movement.
The coolest part about that video is that the movement has more to do with the sound waves approaching the structures natural frequency. It's the same principals behind Tesla's oscillator that he claimed could take down the empire state building. My favorite thing about the oscillator is:
quote:
There are also claims it had a physiological effect on people subjected to its vibrations in that it acted as a laxative causing people to immediately run to the bathroom afterwards.
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