Thanks for the update. Two observations. The structure looks like it is set back from the lakeshore further than I had imagined from the promo "photos" - probably due to "camera" angles. Second, that is an awfully long span that the two trusses extend without apparent support. I assume the engineers have factored in the potential of a heavy snow load which comes to mind since we just had the roof collapse on a building - also without central roof support, and of apparently even longer length than the Alaska Dome's 600 feet - here in Alaska this weekend. The new NU sports facility will reportedly be 500,000 square feet though not sure if that includes the portions already in place. (The collapsed Dome was 180,000 square feet. For comparison the existing Henry Crown Sports Paviilion was originally 95,000 square feet with apparently 30,000 square feet added.)
The building here was the largest inflatable athletic structure on the North American continent and was designed to withstand a snow load much greater than the one that took it down.
From Alaska Dispatch News:
"The massive inflatable roof of Anchorage's indoor sports venue The Dome collapsed just before midnight on Saturday under the weight of heavy snow, canceling athletic events for thousands of users and leaving the future of the heavily used facility in question.
No one was hurt in the collapse of the structure off Raspberry Road, which is roughly 600 feet long and 300 feet wide. The building had been evacuated eight hours before the collapse."
For an idea of the weekend's snow load, here is the accumulation being shoveled from the deck at my house.
