I'm all for progress, but .........

t-tony said:
I seem to recall that when they erected some tower cranes at Lincoln Uni. a couple of years ago they spent what seemed like ages testing it before they started to use them, you could hear what we assumed were "overweight" alarms sounding from across at Tanvics.

Tony.
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For tower cranes or site cranes we rarely do what used to be called "proof load tests or overload tests" on site these days, but we have to do full Safe Working Load tests to test the safe load indicators in the cab. The first alarm will sound at 90% of full SWL, then the next alarm will sound at 95% of SWL and the crane will normally shut down at full SWL, so in effect a 10t crane wont be able to lift the full 10t. It's common practice now not to operate cranes at their maximum loading ie, to lift 10t on site you would use a crane with a higher load rating, such as 15t.
 
Nodzed said:
You'll be fine yer big girls blouse :whistle: ..............=))
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My mind is willing but my body is weak. My knees are shot and climbing those vertical ladders, or rather climbing down the ladders will render me good for nothing for a few days.
 
There is a proposal to build a new dry dock for the new carriers utilising 2 basin at Portsmouth. They will need some massive cranes for that project, if it happens.
 
Jack Ratt said:
My mind is willing but my body is weak. My knees are shot and climbing those vertical ladders, or rather climbing down the ladders will render me good for nothing for a few days.
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Agree with that and glad my days of ladder climbing are over. Not keen on stairs after 21 storey lift goes to fault and you have to walk up to the top to reset. One or two view breaks on the way :):):)
 
Alan Slade said:
There is a proposal to build a new dry dock for the new carriers utilising 2 basin at Portsmouth. They will need some massive cranes for that project, if it happens.
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Yeah, I know some of the docking engineers and they have been talking about the proposals. It's going to be a massive project if it comes off. I don't think we'll be around to see it though as our contract is nearing completion. You never know though, we may win it again. I've really enjoyed the past 4yrs on this job and I hope we can carry it on.
 
Any truth in the rumours that to save cost and weight that they’re building the new crane using balsa wood? :eek:

30 tonnes isn’t a massive weight considering. Just the size needed for clearance. Still looks skinny though. I presume there are wind loading considerations and max wind speed limits.
 
Redline said:
Any truth in the rumours that to save cost and weight that they’re building the new crane using balsa wood? :eek:

30 tonnes isn’t a massive weight considering. Just the size needed for clearance. Still looks skinny though. I presume there are wind loading considerations and max wind speed limits.
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The crane will be used for maintenance tasks only. It will lift 30 tonnes if the load is between the main crane legs, however if the load is under the cantilever section, then max loading will reduce to around 5 tonnes. It's going to be situated over 2 dry docks which are just used for maintenance tasks. I'm sure the real crane wont look as flimsy as the CGI
 
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