PHILADELPHIA | Comcast Technology Center | 1,121 FT | 60 FLOORS - Page 108

Philly Fan · #**2141** Posted **Jun 13, 2015, 5:46 PM**

Quote:

Originally Posted by AJM

If interested in crane being assembled now check out the Ping An International Finance Centre in Shezhen under Suprtall Construction forum and go to post #338. Two collars will support static height for crane and then a third collar will be installed and by use of two climbing ladders the crane will climb itself to higher elevation. After climb the lower collar will be repositioned for next climb phase. First time in states for this method perhaps.

Thanks!

For those who want to get there quickly:

http://forum.skyscraperpage.com/show...&postcount=338

LSyd · #**2142** Posted **Jun 13, 2015, 5:58 PM**

awesome

-

Elevator1 · #**2143** Posted **Jun 13, 2015, 6:42 PM**

Very cool!!

Lincolndrive · #**2144** Posted **Jun 13, 2015, 6:49 PM**

1800 block of Arch is all shut down for the east crane. Added some shots on the building philly page today. Can't wait to see them both in action in the next week or so!

Jawnadelphia · #**2145** Posted **Jun 13, 2015, 10:17 PM**

Yo y'all I happened to be right near the spot when a lot of action was going down ....

[IMG]

Untitled by screennameLLC, on Flickr[/IMG]

[IMG]

Untitled by screennameLLC, on Flickr[/IMG]

more pics on the flickr

Philly Fan · #**2146** Posted **Jun 13, 2015, 11:05 PM**

Quote:

Originally Posted by TallCoolOne

Yo y'all I happened to be right near the spot when a lot of action was going down ....

more pics on the flickr

Wow, great pics (as per usual from you)!

And also the photos form Lincolndrive on his Building Philly Facebook page. Really show what was happening.

And thanks to AJM, above, we can actually understand what was happening.

joemustardo · #**2147** Posted **Jun 13, 2015, 11:22 PM**

Quote:

Originally Posted by Philly Fan

Wow, great pics (as per usual from you)!

And also the photos form Lincolndrive on his Building Philly Facebook page. Really show what was happening.

And thanks to AJM, above, we can actually understand what was happening.

I'm a little confused. Why are both cranes so close to the core? When constructing the steel that would be the main structure, would't they get in the way?

Philly Fan · #**2148** Posted **Jun 14, 2015, 1:02 AM**

Quote:

Originally Posted by joemustardo

I'm a little confused. Why are both cranes so close to the core? When constructing the steel that would be the main structure, would't they get in the way?

I'm no expert, and have no inside knowledge of this particular project, but it appears that both of these cranes are the type that have articulating arms, and not the straight horizontal arms found on other tower cranes. In other words, these two cranes have arms that are similar to the two tower cranes being used for the FMC Tower:

Photo credit: PhiLaw.

So they can stay out of the way of each other and, being on opposite sides of the core (i.e., the west and east sides), can reach the entire structure as it's erected.

joemustardo · #**2149** Posted **Jun 14, 2015, 1:17 AM**

Quote:

Originally Posted by Philly Fan

I'm no expert, and have no inside knowledge of this particular project, but it appears that both of these cranes are the type that have articulating arms, and not the straight horizontal arms found on other tower cranes. In other words, these two cranes have arms that are similar to the two tower cranes being used for the FMC Tower:

[xIMG]http://s21.postimg.org/u5t3e81h3/image1_1.jpg[/IMG]

Photo credit: PhiLaw.

So they can stay out of the way of each other and, being on opposite sides of the core (i.e., the west and east sides), can reach the entire structure as it's erected.

Sorry. I meant the steel for the structure of the building. In the image of FMC, the red crane is basically going straight sure the steel structure. Why is that?

summersm343 · #**2150** Posted **Jun 14, 2015, 2:04 AM**

Update from Building Philly

More photos here:
https://www.facebook.com/BuildingPhilly

summersm343 · #**2151** Posted **Jun 14, 2015, 2:07 AM**

Pictures I took from yesterday and today:

Philly Fan · #**2152** Posted **Jun 14, 2015, 2:17 AM**

Quote:

Originally Posted by joemustardo

Sorry. I meant the steel for the structure of the building. In the image of FMC, the red crane is basically going straight sure the steel structure. Why is that?

Presumably because the site is so tight, and the structure will take up most--if not all--of the site. While the CITC site is obviously much bigger than that for the FMC Tower, the structure will similarly occupy most, if not all, of the site.

Also, and more significantly, the eventual height of these buildings--and hence the tower cranes--requires that the cranes be supported by more than just their intrinsic steel towers. That occurred to me overnight, and a quick bit of Googling just now revealed the following:

Quote:

A typical tower crane has the following specifications:

Maximum unsupported height - 265 feet (80 meters) The crane can have a total height much greater than 265 feet if it is tied into the building as the building rises around the crane.

http://science.howstuffworks.com/tra...wer-crane2.htm

And of course, anchoring them to the core would maximize their support as they continue to climb.

Jawnadelphia · #**2153** Posted **Jun 14, 2015, 6:48 PM**

Summers - the pics from the top of The Sterling - bad ass. Thanks.

stormkingfan · #**2154** Posted **Jun 15, 2015, 1:02 AM**

CI&TC's core has probably the biggest footprint I've seen. Saw it for the first time this afternoon. Looks to be about 80-90 ft high now.

PhillyPhlyr · #**2155** Posted **Jun 15, 2015, 12:42 PM**

Good morning everyone, I'm a longtime visitor first time poster. I frequent Cuthbert street often so thought I would share some pics from this morning of the second crane.

From Cuthbert Street:

[/url]IMG_3333.JPG by PhillyPhlyr, on Flickr[/IMG]

Inside the pit:

[/url]IMG_3334.JPG by PhillyPhlyr, on Flickr[/img]

From 18th Street:

[/url]IMG_3330.JPG by PhillyPhlyr, on Flickr[/img]