Henry -- that is a good observation -- my speculation is that while the building is not really that tall -- it does have a fairly tall-thin-long aspect -- for which you still need substantial stiffness in the thin direction -- hence a core which will appear to be fairly massive
Then there is the fact that I think that the codes have changed since any large office building has been built in Boston (i.e. post 9/11/2001) -- specifically for location, protection and scale of emergency stairs, probably fire mains as well
I have a theory that the core is large because it is built to service the adjacent Salada building floors as well, i.e. extra elevator and stair access - we'll know if i'm right if the core gets narrower after the new building rises beyond the height of the existing salada building.
After a dreadfully boring and seemingly interminable down cycle -- projects of all scales and functions seem to be suddenly springing up around nearly every key location in Bos/Cam
Since the modern structural frame erection process became dominant (i.e. last 10 years) -- the crane phase of construction is very short and soon the cranes are gone to roost somewhere else
in addition the very mild late Autumn and early Winter is letting construction proceed nearly at the summertime clip (except for the need for light in the afternoon, etc.)
Here's wishing that SandiKluus will give someone a nice video camera to shoot and share some nice video of these projects
Yea I heard it was like 60 there this past weekend! Ridiculous!
I figure it has to have had some affect on the speed. It's a lot easier to get things done when the weather is like that and I'm sure the morale of the workers has been a lot higher too.