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-   -   CHICAGO | Cirrus & Cascade (LSE) | 562' & 403' FT | 52 & 37 FLOORS (https://skyscraperpage.com/forum/showthread.php?t=239946)

bnk Nov 15, 2019 4:29 PM

What's going on here? There is nothing permanent about this.


LouisVanDerWright Nov 15, 2019 4:40 PM

Quote:

Originally Posted by bnk (Post 8749484)
What's going on here? There is nothing permanent about this.

What do you mean? They are building the climbing form assembly for the core. This is totally temporary and features reusable forms that open and close to allow workers inside to place the rebar before closing back up and being filled with concrete.

bnk Nov 15, 2019 4:46 PM

Quote:

Originally Posted by LouisVanDerWright (Post 8749506)
What do you mean? They are building the climbing form assembly for the core. This is totally temporary and features reusable forms that open and close to allow workers inside to place the rebar before closing back up and being filled with concrete.

Thank you. I knew it was temporary I just didn't know its function. Now I do.

Skyguy_7 Nov 15, 2019 7:44 PM

^Understandable. Looks permanent because the formwork is shiny and new. Typically, they're orange and rusty but the problem is that GCs don't have any old ones lying around in their equipment yards thanks to the most tremendous construction boom in Chicago history! They're all spoken for! :cheers:

bhawk66 Nov 15, 2019 9:58 PM

So much respect for these construction workers. Not only do they work in dangerous and precarious situations, now it's the weather. The guy above is doing something with that 2x4 while balancing on minimal foot support all while carrying a cumbersome tool belt and safety harness. :worship:

SolarWind Nov 17, 2019 8:44 AM

November 15, 2019














cozy Nov 17, 2019 3:25 PM

awesome pics. can't wait to watch these two massive elevator cores rise above LSD

KWillChicago Nov 17, 2019 11:00 PM

Because of the three cranes working together do the two towers have to rise simultaneously level for level?

Bombardier Nov 17, 2019 11:42 PM

Quote:

Originally Posted by KWillChicago (Post 8751251)
Because of the three cranes working together do the two towers have to rise simultaneously level for level?

Since all 3 cranes are luffers, they have a lot of flexibility. I would expect that we will always see the taller one jump first and the medium one jump second. The towers should rise roughly floor for floor once the climbing cores are both built (barring unforeseen issues). The small crane is probably at it's ultimate height since it is only there for a short time to support the podium.

harryc Nov 18, 2019 4:09 AM

Nov 15












harryc Nov 23, 2019 1:10 PM

Nov 20

















KWillChicago Nov 23, 2019 2:19 PM

How cool would it be if both buildings shared the same slab for each floor. That would be so huge taking up the whole site and fun to watch.

bhawk66 Nov 23, 2019 4:48 PM

Wow. Stellar shots, Harry. Gracias

BVictor1 Nov 23, 2019 8:57 PM

Quote:

Originally Posted by SolarWind (Post 8750905)
November 15, 2019


Is that a big ass crack in the concrete?

bhawk66 Nov 24, 2019 1:00 AM

Thank god for rebar.

Tensile. Should be fine.

harryc Nov 24, 2019 1:55 AM

Quote:

Originally Posted by BVictor1 (Post 8757154)
Is that a big ass crack in the concrete?

More likely some squeezed between the forms - which would be joined right here.

harryc Nov 28, 2019 3:02 PM

Nov 27

Chicago | Cirrus and Cascade by Harry Carmichael, on Flickr

Chicago | Cirrus and Cascade by Harry Carmichael, on Flickr

Chicago | Cirrus and Cascade by Harry Carmichael, on Flickr

Chicago | Cirrus and Cascade by Harry Carmichael, on Flickr

Chicago | Cirrus and Cascade by Harry Carmichael, on Flickr

rivernorthlurker Nov 30, 2019 2:38 AM

Quote:

Originally Posted by harryc (Post 8761549)
Nov 27

At the rate that they're going I feel like this is almost finished, lol. They literally broke ground 13 weeks ago.

Hourstrooper Nov 30, 2019 2:57 AM

Quote:

Originally Posted by rivernorthlurker (Post 8762848)
At the rate that they're going I feel like this is almost finished, lol. They literally broke ground 13 weeks ago.

Its good for the haste!!!! get these infill towers built so that the larger site I can commence!!!

rivernorthlurker Nov 30, 2019 3:03 AM

Quote:

Originally Posted by Hourstrooper (Post 8762859)
Its good for the haste!!!! get these infill towers built so that the larger site I can commence!!!

Haha, my thoughts exactly. If feel like these two towers are basically part of Site I's construction in that sense.


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