CHICAGO | 150 North Riverside | 752 FT | 54 FLOORS - Page 38

Nicholasr · #**741** Posted **Feb 15, 2015, 7:47 AM**

Quote:

Originally Posted by ardecila

Given the outside temps, the size of this pour is enormous. Good thing concrete is exothermic, so the center of the mat won't get cold. On the other hand, the outside portions do have a freezing risk. I wonder if they installed a radiant heating system to account for the temps?

According to design-mind, they have installed propane heaters

Quote:

Originally Posted by Design-mind

Not sure what the temperatures are there, but running a propane heater under the tarps to keep the cement from freezing in cold temperature which helps the concrete to cure properly. If it does freeze the concrete becomes brittle after it cures.

BVictor1 · #**742** Posted **Feb 17, 2015, 4:41 AM**

Beginning the core frame-up.
02/16/15

george · #**743** Posted **Feb 20, 2015, 3:03 PM**

2/20

Only 2 workers spotted on the site... too frigid?

george · #**744** Posted **Feb 20, 2015, 10:14 PM**

2/20

BVictor1 · #**745** Posted **Feb 26, 2015, 2:52 AM**

02/25/15

Izzi · #**746** Posted **Feb 27, 2015, 9:54 PM**

Taller · #**747** Posted **Feb 28, 2015, 5:30 AM**

Wow, thick core

george · #**748** Posted **Mar 2, 2015, 8:05 PM**

3/1

george · #**749** Posted **Mar 3, 2015, 11:59 PM**

3/1

BVictor1 · #**750** Posted **Mar 4, 2015, 1:07 AM**

Instillation of the tower crane can't be too far off.

I asked someone last week where the crane would be and she told me that it would be rising inside the core.

I also remember being told a few months back that the core would be about 8 floors up before they started installing the bulb tees to span the tracks.

jc5680 · #**751** Posted **Mar 7, 2015, 6:26 PM**

BVictor1 · #**752** Posted **Mar 9, 2015, 10:45 PM**

Formwork for the crash wall being placed.

03/09/15

I was told that the tower crane should be installed within the next 3 weeks to early April.

I've gotten a second confirmation that the crane will rise within the core like at RP.

The could start installing the bulb tees mid-April.

Skyguy_7 · #**753** Posted **Mar 10, 2015, 12:43 PM**

Thanks for the update, BVic. The crash walls should go quickly. Drove past last night and they already appear to have over 25% of forms up.

BVictor1 · #**754** Posted **Mar 13, 2015, 2:37 AM**

03/12/15

Skyguy_7 · #**755** Posted **Mar 13, 2015, 1:16 PM**

^Sweet. Self-climbing core components on site and currently being installed.

killaviews · #**756** Posted **Mar 13, 2015, 4:29 PM**

^^^ Looking at old images from the River Point cam, the tower crane base was installed right around this stage.

Izzi · #**757** Posted **Mar 13, 2015, 9:13 PM**

Clarkkent2420 · #**758** Posted **Mar 14, 2015, 12:34 AM**

Crane won't go in anytime soon. Assume they can't set any steel until core is up to like 11th floor due to sloped columns going from L4-8. Need to build core and set tees prior to tower crane.

J_M_Tungsten · #**759** Posted **Mar 14, 2015, 1:47 AM**

Quote:

Originally Posted by Izzi

So this is basically columns, walls, and the open elevator shafts, right? I can't wait for the first shots where this thing starts to branch outward!

BVictor1 · #**760** Posted **Mar 14, 2015, 3:16 PM**

Quote:

Originally Posted by Clarkkent2420

Crane won't go in anytime soon. Assume they can't set any steel until core is up to like 11th floor due to sloped columns going from L4-8. Need to build core and set tees prior to tower crane.

Actually, the tower crane should be going in within the next few weeks. I've posted that info several times.