I don't think they need a core for the second egress stair... can't it simply be enclosed in fire-rated construction?

Optima topping out in the background.

April 4

More of the mysterious blue things - tanks to let the rainwater soak into the ground ?


Flying forms - these will be lifted intact from floor to floor.






465 N Park - Site prep to today

Right -- we have an "L"-shaped building with a hotel component and a residential component. The two uses cannot share elevators, so either there is a single core large enough for all their elevators (and access to it is completely partitioned off between them) -- where occupants must deal with somewhat longish hallways -- or there are two elevator cores.

From the last batch of photos (looking southeast especially) it seems this core is nudged in the corner and not massively far from either end, suggesting just the one core, although if so it would put a portion of the rooms further from the elevator than is normal for downtown luxury highrises. Not that it's some horrible problem, but at the very high end of the market it's a bit of an odd inconvenience to have.

One core would probably be better off here if the low-rise wing is the hotel portion, and all the residences are in the tower, which it I think it looks to be what they have done.

April 12 2013
 

Just in time re-bar, they were finishing up the left side as the concrete was pored in the loer right.







Anchor points for post stress floors ?


3/21






435 N Park From site prep to today

Floorplans here. (PDF)

I think there have been minor changes to the design, but the floorplans should still be reasonably accurate.

To answer your question, yes, the elevators are grouped into a single core. Residential elevators (x3) are in blue, hotel elevators (x4) are in orange. There are also two service elevators for the hotel and one fire service access elevator for a total of ten, not counting a few short-run elevators in the podium.

^Nice find ardecila, thanks. Any access to elevations too?

4/17




4/12



Crane in the mist.


435 N Park - site prep to today

Apreil 23rd




April 26th







435 N Park - from site prep to today

I have a question. How are people able to take close shots of the construction. Is special permission required?:shrug:

The Sheraton has a "viewing platform" designated especially for us! :cheers: Check it out on Google Earth..

4-30

This site is a beehive of activity

http://imageshack.us/a/img809/375/np2m.jpg

http://imageshack.us/a/img46/4205/np1j.jpg

http://imageshack.us/a/img600/102/np3bm.jpg

Nice. How much contrast are you using on those shots, or does 500 N's striped pattern stand out that well?

Looking at George's first shot above, you can see the guys standing at the wall along upper East North Water st. Most of the projects downtown have 2 or 3 tier roadways next to them. The dust/privacy fencing is usually not installed on the upper levels until the floor plate goes above them.

Harry's right, with no fencing as of yet, the elevated street level driveway is the perfect observation spot.
Regarding 500 N, the pattern reads more clearly now in the right light since they've started washing the windows.

http://imageshack.us/a/img853/5557/np4f.jpg

^it's best view of a site you can get unless you randomly have one out the window of a building you already live/work in.

from that sidewalk you're literally on top of it. Fencing was going up on Sheraton side today though, so hurry

May 2nd
 

The no fun fencing - the corner on the right is where I leaned to do pano shots for the last year or so. The sidewalk here will probably be used for building the rebar cages and staging supplies as the floorplates cut off access to the lower level.









435 N Park - a few more shots

May 8
 

435 N Park

Mary 15th
 

435 N Park - Site prep to today

^ What on earth is that black thing - a conveyor belt?

A "beam" on the forms system, it is what the panels site on, the many notches allow the forms to be configured in many ways, sorta like a Lego set.

You can see one in the photo above (2nd shot) on top of the white beam with the word "SKYDECK" on it.