Quote:
Originally Posted by Prometheus
My initial thought was that they had to do with the four giant arms used during the olympic ceremonies.
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Most of what was added to BC Place for the Olympic opening/closing ceremonies and the nightly event ceremonies were removed by VANOC (more likely the production company hired to produce the ceremonies) so that BC Place was back to 'normal' for the next events, which I think was the Home Show, and the Car show - the last event under the old roof.
Most people didn't realise that the 'floor' of BC Place for the Olympics was actually a stage about 10 feet higher than the concrete floor (ie the football turf level) of the stadium, and this stage and perimeter seating covered the entire floor surface. All of the extra lighting and special video effects that were hung from the roof also caused the roof to sag from all the extra weight, but this wasn't noticable to the general public.
This stage hid the equipment needed for the special effects like elevators for raising the performers to stage level to do their number, and then lowering them down again, and trap-doors covering entrace and exit stairs, and the indoor cauldron and infamous arms that (mostly) rose up from the interior of the stage. It also allowed performers and 'back stage' crews to move around under the floor to prepare for the different acts and scenes in the ceremonies and stay hidden in plain sight from the audience.
All of this staging for the ceremonies and the other Olympic decorations were removed so BC Place was back to 'bare concrete' original condition for the next event after the Olympics.
As for the four circular 'pads', I doubt they are for cranes, since I would have expected mobile cranes would be used from the interior. It also occurred to me that those might be the foundation pads for the scaffolding needed to hold the middle section of the roof in place while the wire ropes are strung from a perimeter mounting point through the middle section to the opposite perimeter mounting point. This can simplify the rigging of the wires while the perimeter masts are being installed at the same time.