Quote:
Originally Posted by BodomReaper
If I recall correctly, Central's developer stated that the main factor inhibiting a column-free design was that it would have necessitated a much thicker transfer-slab, which in turn would have pushed the building height a few meters above the site's height-restriction...
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This is correct, based on what was said by the architects at the UDP. The project wouldn't work financially if it lost a floor or two from the bridge or the podiums in order to fit the transfer slab that would have been required, and it wouldn't have worked either if it had been done in steel. The original column design of "chopsticks in a cup" would have been much more visually interesting than the straight up an down columns, but that also became unfeasible because of the complexity and inefficiency the angled columns would have created at the parking levels. The implication throughout was that the unconventional design was barely feasible and creating a true bridge would have been - forgive the pun - a bridge too far. I still think this will turn out to be pretty spectacular once the scaffolding is down.
Pier 27 in Toronto is very neat, structurally, but it's a ghost town at grade and isn't all that comparable to Central's location on SEFC. It sits behind a parking lot; right beside the Red Path Sugar refinery; beside the Toronto Star offices, printing works, parking, and distribution yard; and, most charmingly, nearby is the derelict Captain John's seafood restaurant ship that periodically gets shut down by the health department. (I wouldn't be surprised if it would be safer to eat something made on the McBarge after having sat idle since Expo)
Anyway, Pier 27 sits on Queen's Quay, which may one day prove to be a pretty great street but in the mean time is one of the most bleak, windswept major waterfront avenues I've ever come across. I'm impressed that they did two full bridge elements for the project, but all things being equal, given the choice I would pick Central.
Here are a couple camera phone pictures I took of Pier 27 earlier this year.