Craning in and wind strength

[C08]

What wind speed stops craning in with a traditional crane?

 

[pvb]

Depends on lots of factors - too many to give a definite answer.

 

[Daverw]

Would be very surprised if with the current forcast many crane lifts are done, actual wind speed limits are set by crane manufacture

 

[AntarcticPilot]

+1 for all of the above. It may also depend on limits set by insurers. However, however it is determined, it isn't very high - at James Watt Dock, ISTR it was 30 knots. I also think that was MAXIMUM wind speed, not steady wind speed, so if it was gusting up to 30 knots, the crane couldn't operate.

Current weather - even down here near Cambridge, where it isn't that strong - would preclude any crane operations.

 

[Praxinoscope]

It’s changed quite a lot over the years, I remember 20-30 years ago the crane driver ignoring gusts of 30 kntsand carrying on, recently there seem to be numerous alarms and safety sytems built in which can shut the crane down if ignored. It now seems that gusts of 25knts will set off the alarms.
But it does seem to depend upon the crane, the driver, the company and whether your’e happy to see your pride and joy rather alarming swinging around in mid air.

 

[RichardS]

20 knots seems to be the trigger point at my marina.

Richard

 

[[70521]]

What wind speed stops craning in with a traditional crane?

In my experience when the lifting team say its too windy.

 

[MM5AHO]

Many cranes are now fitted with two anemometers. One to alert the driver of current windspeed, and an independent one to send the data by telemetry to a server which records the GPS position wind speeds and time. Especially for construction sites where there's pressure to ignore the safe windspeed.