Too much time in the tower crane cabin can eventually lead to cabin fever for all but the most patient and mentally strong tower crane operators.According to the most trusted source available: Wikipedia
'Cabin fever is an idiomatic term, first recorded in 1918, for a claustrophobic reaction that takes place when a person or group is isolated and/or shut in a small space, with nothing to do for an extended period. Cabin fever describes the extreme irritability and restlessness a person may feel in these situations'
Basically what you will notice is that your tower crane operator will become more restless and easily frustrated, often over reacting and just generally bad tempered. You have to remember that even though they are on the worksite they are very isolated in their relativity small restrictive workplace and interaction is reduced to the people on the receiving end of their 2way radio. The are unfortunately perfect candidates for this predicament.
Luckily there are things you can do to reduce the likelihood of cabin fever on your site and its pretty simple
1. Rotate crane operator - Don't have one operator per site but have several crane operators that rotate and dog the crane so that at the most they are stuck in the crane for only half the day
2. Have breaks - don't have the crew work through lunch etc, this will just lead to trouble down the track. If you do need to keep the crane moving than spread out the breaks so everyone gets one
3. The crane operator should take a book with them or crossword to keep them busy when there is downtime and nothing is happening
Follow these steps and then no cabin fever... Happy days!
Today at about 2:30pm I noticed a fair amount of smoke towards the east, I initially assumed the fire was in the same suburb, until climbing the tower crane and saw the smoke coming directly in the center of Lend Lease's construction site at Barangaroo. I got on the twitter account @cranecrews and let my good followers know what was going on, within 5 mins news helicopters from CH9 and CH7 arrived so I knew it was kind of a big deal, at 3pm I left to go home, smoke was still coming from the site
Also roads were starting to build up traffic due to diversions, for anyone who doesn't know the building site is on the border to the central business district. PS sorry for bad picture quality, I am going to invest in a better camera phone very soon ;).
PS builder for the site is LendLease, remember those guys had a big fire at Broadway at the start of 2013 where a Favco tower crane collapsed?
The way the crane is reeved affects the lifting capacity of the tower crane for lifts outside the cranes tipping point. At and beyond the cranes tipping point generally the reeving does not increase lift capacity.
On this small Jaso tower crane when changing the reeving from 2 part to 4 part the lift capacity goes from 2.5 tonne to 5.0 tonne, a big difference. The downside to working with more reeving is that it reduces the hoist speed as there is more cable to lift, also more reeving can reduce lifting capacity as the crane also has to lift more cable, this is particularly the case on medium and high rise as there is a lot more cable to lift by increasing reeving.
Changing the reeving can be done on some cranes without touching the hook block, as the block locks into the trolly and changes the crane from 2 - 4 part.
On this crane the reeving must be changed manually, it is a pretty simple process
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