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  #1  
Old Posted Mar 8, 2008, 2:14 AM
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Tower Cranes

353 N Clark - Chicago

Starting off with the crane that came down today - going up last October

The foundation





The parts
Tower sections


Winch


back section


Turntable

w cab





Pulley carriage ( what the hook hangs from )



Assembling the tower

















The crane that builds the crane




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Last edited by harryc; Mar 8, 2008 at 2:42 AM.
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  #2  
Old Posted Mar 8, 2008, 3:52 AM
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353 N Clark - Chicago

Putting the cross piece on - really a big suspension bridge.

The pieces


Tightening down the tower


Hanging the back section




getting ready to string the suspension cable






Pulling it out


back section hung


Front #1






Some perspective


Yes it is tall - aircraft warning light.


Attaching the cable




Pulling another cable out


Front #2


another pair of support cables


bolting it together first


Controlling the #2 section on the ground.


Pulling the cable out


attaching


Very big pin




all done


counterweights
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  #3  
Old Posted Mar 8, 2008, 4:21 AM
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Amanita Amanita is offline
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Awesome photo sequence- the detail shots are amazing.
You've got yourself a Pecco there- an SK 400, I believe. Sadly these cranes are no longer built, but many of them are still kicking ass and taking names on North American Jobsites.

Here's a diagram naming the various parts of Tower crane anatomy:
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Old Posted Mar 8, 2008, 4:28 AM
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Quote:
Originally Posted by Amanita View Post
Awesome photo sequence- the detail shots are amazing.
You've got yourself a Pecco there- an SK 400, I believe. Sadly these cranes are no longer built, but many of them are still kicking ass and taking names on North American Jobsites.

Here's a diagram naming the various parts of Tower crane anatomy:
Thanks for the diagram - now I'll have the correct terms. I love the simple physics at work here, makes Statics come alive.
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Old Posted Mar 8, 2008, 4:34 AM
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353 N Clark - Chicago

Operational
preparing the Trolley - the hook block is temporarily attached by a big pin




Cabling up the trolleys and hooks.


Mobile crane leaving - telescoped down


Extension leaves




Lunch with a view


Hard to get good signal


One hook/trolley this gives a 2/1 reduction.


both hooks and trolleys in series gives a 4/1 reduction










looking big




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Old Posted Mar 8, 2008, 5:56 PM
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wicked set...thank you
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Old Posted Mar 13, 2008, 1:51 AM
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Coming down

With the installation of the climbing crane this one was ready to be removed.
353 N Clark - March 6th

Unplugging the crane




Tidying up


Support cables removed, preparing to disconnect the front part of the Jib




Unbolting




Lowering the support cable for the front Jib section


1/2 Jib gone ( the counterweights were removed earlier ).


Up in the air


2nd 1/2 on the way down


Preparing the CounterJib




Unbolting the CounterJib


Lifting


Off


On the way down ( Sidewalk Joe on the lower right )


Picking off the Tower Peak ( as seen from lower Caroll )


Removing the motors ( blue cylinders )




Tower sections ( 2 at a time )


Notice how 2 of the 3 visible bolts are gone


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Old Posted Mar 13, 2008, 3:37 AM
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Great thread! Thanks so much for taking those and posting them. Those mobile cranes really are huge. One project in Austin had one removing its tower crane, and I would say it was probably about 250 feet tall. It was a monster.
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  #9  
Old Posted Mar 13, 2008, 6:19 AM
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Lots of tower cranes

There are so many tower cranes in Vancouver right now. I think there are about 10 alone working on the Olympic athletes village.

Bottom Left

Source
The photographer: http://www.flickr.com/photos/bsoleil/
February 14th, 2008.


SFUVancouver


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  #10  
Old Posted Mar 13, 2008, 7:54 AM
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That last shot in Vancouver is pretty intense, I count 12 in it alone.

Calgary has 56 up across the entire city, most on a single site is 5 currently (Centennial Place), and the Bow will have 5 eventually as well, currently two there. Bow also has the largest crane in the city, we believe its the largest luffing model that Potain makes (roughly 70k lbs max capacity). Its probably a good hundred feet above street level, and the base of it is 65 feet below the street, making it look quite impressive.
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  #11  
Old Posted Mar 13, 2008, 6:42 PM
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Holy shit..Vancouver looks like a Pecco breeding ground in those pics! The things are everywhere! (Weeps softly, there's nothing like that here in Halifax)
And Calgary sounds like another Tower Crane nest- Good grief!

It's always kind of sad to see a Tower crane come down. When they're up, they're such majestic things. Seeing one sitting on top of a building often reminds me of some huge bird in its nest, looking down on the city.
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  #12  
Old Posted Mar 15, 2008, 9:06 PM
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GREAT THREAD! Just a general question...in the cabin of a tower crane are there any sort of TV screens so the operator can see what is below the pulley carriage?
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Old Posted Mar 16, 2008, 2:18 AM
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Generally no. The crane operator relies on their rigger for guidance, and uses a radio for communication when they can't see what's below them.
Needless to say, operators and riggers have to trust each other greatly, and some operators refuse to work when their favourite riggers are out sick!
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  #14  
Old Posted Mar 16, 2008, 8:22 PM
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Thanks!
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  #15  
Old Posted Mar 17, 2008, 9:38 PM
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Here are some of my tower crane shots from Vegas.





























Are they flying balloons to check the final height?








































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  #16  
Old Posted Mar 17, 2008, 9:54 PM
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Ho-Lee Crap!! That's a LOT of Tower cranes!
The things are breeding!!
-Weeps softly at Halifax's depleted crane population..Why can't we get something crazy like that going here!?
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  #17  
Old Posted Mar 20, 2008, 11:18 PM
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Forest of Cranes - Vancouver's Olympic Athlete's Village under construction. Originaly posted by SFUVancouver in Vancouver Olympic Village



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  #18  
Old Posted Mar 21, 2008, 2:13 AM
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Even in Salt Lake City, we are getting some Tower Cranes erected. Here are some photos from recent weeks.





















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  #19  
Old Posted Mar 21, 2008, 2:49 AM
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Wow .... Mdiederi those are some supurb shots - I will be spending some time at my favorite game - just how does that work ....

I love the Canadian crane olympics.

And the T-mac shot with the temple in the backgorund.
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  #20  
Old Posted Mar 28, 2008, 10:07 PM
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Ok - so how much does a crane operator make these days?
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