Tower Cranes - Page 3

harryc · #41 Posted: **Jan 20, 2010, 3:42 AM**

The little crane was brought in to bring the big one down.

Piece by piece

Motor - note visual aides applied to spool so motion is obvious.

Tower sections

Power connection (Electric ?)

the pads for the climbing mechanism.

Base of the climbing section

The little crane stands alone

Little crane in pieces.

Ghost6ix · #42 Posted: **Mar 9, 2010, 5:01 AM**

That building does not look finished why is the crane coming down ?

WonderlandPark · #43 Posted: **Mar 9, 2010, 4:34 PM**

Quote:

Originally Posted by Ghost6ix

That building does not look finished why is the crane coming down ?

The Economic Crisis, of course. That was supposed to be a supertall for Chicago

harryc · #44 Posted: **Dec 1, 2010, 4:03 AM**

From Nov 2010

harryc · #45 Posted: **Feb 15, 2011, 12:27 AM**

boardwalks and wires set up for working on the support arms.

harryc · #46 Posted: **Apr 13, 2011, 2:54 AM**

harryc · #47 Posted: **Apr 13, 2011, 3:01 AM**

Note the tower is anchored to the core, not the edge of the slab.

uakoops · #48 Posted: **May 13, 2011, 1:36 PM**

Couple of closeups of an FMC TG (1900?) at the International Gem tower on 47th Street in Manhattan.
Also shows the special Federated/DCM climbing system in a unique rectangular configuration.

By uakoops at 2011-05-12

Ivan MTI · #49 Posted: **Jul 8, 2011, 4:12 PM**

Hi, I am new here, I stuble upon this forum while looking for details about tower cranes, as I am making 3D model of one. You can see it need lot of details to be finished, and you can see what i have so far:

more you can find here:
http://cad-unigraphics-projects.blogspot.com/2011/07/tower-crane-3d-model.html
I am open to all suggestions how to make this look better

harryc · #50 Posted: **Jul 14, 2011, 10:40 AM**

Quote:

Originally Posted by Ivan MTI

Hi, I am new here, I stuble upon this forum while looking for details about tower cranes, as I am making 3D model of one. You can see it need lot of details to be finished, and you can see what i have so far:

more you can find here:
http://cad-unigraphics-projects.blogspot.com/2011/07/tower-crane-3d-model.html
I am open to all suggestions how to make this look better

An animation of the process for adding/removing sections would be great. One of the first questions most people ask when they look closely "how do they get taller"?

HVAC · #51 Posted: **Aug 5, 2011, 3:03 AM**

Quote:

Originally Posted by harryc

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

That's great. I always wanted to see how they are assembled. Now I know thanks.

Mdizzle · #52 Posted: **Aug 9, 2011, 3:56 PM**

That looks like a Peiner SK. I'm actually running one of those right now. Great pictures!

harryc · #53 Posted: **Aug 9, 2011, 9:19 PM**

Quote:

Originally Posted by Mdizzle

That looks like a Peiner SK. I'm actually running one of those right now. Great pictures!

They were very nice and set it up next to my office ;-)

urban_planner · #54 Posted: **Nov 11, 2011, 6:34 PM**

I have a tower Crane Question. Is ther a standart height dieeferance between the height of a Tower Crane verse the height of the finished product? What I want to know is left say for example I was going to be building a 50 meter builiding how high would my tower crane be?

harryc · #55 Posted: **Nov 11, 2011, 7:23 PM**

My observation has been that the crane is usually 1 segment taller then the finished building, at the finish. These cranes can be extended as the building progresses. Some (like 150 N Wacker above, or the new World Trade Center) climb up the elevator shaft as it is finished.

harryc · #56 Posted: **Nov 11, 2011, 7:29 PM**

345 E Wacker - Chicago

harryc · #57 Posted: **Nov 11, 2011, 7:31 PM**

345 E Wacker - Chicago

some assembly required

Easiest to assemble on the ground

Rotate motors

Crane to put up the crane

scalziand · #58 Posted: **Jul 16, 2012, 7:28 PM**

In watching the Tour de France this summer, I've noticed that construction projects seem to use tower cranes even for very small projects, like a single house. Anybody have any idea why tower cranes would be used on such small projects?

KevinFromTexas · #59 Posted: **Jul 17, 2012, 1:53 PM**

Maybe because tower cranes take up such a small area?

One thing I've been wondering about lately is do tower cranes have a set regulation on how much clearance they have to have above the building they're working on? It seems like they usually clear the top of a building by at least 40 feet. But there's a tower crane working on a building in Austin right now that is clearing it by like 90 feet because there's another building under construction across the street, and I guess they have to clear that crane. But I was wondering if they have a minimum clearance requirement.

chrisvfr800i · #60 Posted: **Jul 23, 2012, 4:08 PM**

Quote:

Originally Posted by KevinFromTexas

Maybe because tower cranes take up such a small area?

One thing I've been wondering about lately is do tower cranes have a set regulation on how much clearance they have to have above the building they're working on? It seems like they usually clear the top of a building by at least 40 feet. But there's a tower crane working on a building in Austin right now that is clearing it by like 90 feet because there's another building under construction across the street, and I guess they have to clear that crane. But I was wondering if they have a minimum clearance requirement.

As far as I know, the only requirements for crane height above the building are practical considerations: Roofop equipment, demob of construction equipment, neighboring buildings & cranes, etc.