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Old March 10th, 2016, 09:57 PM   #21
412lakes
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Quote:
Originally Posted by vincent View Post
i am pretty sure they can. There are not much cross-area at the crane (just steel frames) to generate force from wind.
Erected, jacked tower cranes for 8 years. Wind is your enemy when you are open and jacking on the top. A quartering wind is the worst. The front boom catches a lot of wind, that's why at the end of the day you open the swing brakes and allow the crane to weather vane. When extreme winds are forecast, the crane may be lowered to the last tie off and tied down, guyed off.
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Old March 10th, 2016, 10:43 PM   #22
412lakes
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New York City has lost a few cranes in the past to wind. The super tall near Central Park had a crane damaged near the end of construction. A ground crane was destroyed when lowering its boom downtown, one was killed in the street. they are most vunerable when
lowering or raising the boom from ground level. I've had a few very exciting times doing this work!
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