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Will the Ga. Dome Roof survive this snow and ice ?


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That's cool and all, but we don't get the snow like you guys. Like you won't get Hurricanes like Florida.

I understand that. You guys aren't used to plows running you off the road, salt trucks pelting you with salt rocks, and the overall terrors that are associated with lake effect snow. That's why we all have 4X4s and SUVs. Regardless how much snow we get, we all still have to go to work. Once you live in it, you get used to it.

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This is interesting.

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Georgia Dome

Vital Statistics:

Location: Atlanta, Georgia, USA

Completion Date: 1992

Cost: $214 million

Diameter: 840 feet

Type: Cable-supported roof (tensegrity)

Purpose: Recreational

Materials: Steel, Teflon-coated Fiberglas

Engineer(s): Matthys Levy; Weidlinger Associates

On March 1, 1992, as workers placed the last fabric roof panel in place, the Georgia Dome became the largest cable-supported fabric roof in the world. Stretching more than 395,000 square feet, the Teflon-coated Fiberglas fabric roof is quite an engineering marvel. The roof weighs just 68 pounds, but it is strong enough to support a fully loaded pickup truck. How? The answer lies with a fundamental engineering breakthrough, one that architect-engineer Buckminster Fuller dubbed "tensegrity."

Put simply, tensegrity is a complex sequence of triangles. Short, vertical posts carry the weight of the Georgia Dome roof. The posts are held in place by pre-stretched cables, attached to the top and bottom of each post with steel pins and welded connections. The cables pull on the posts with equal force in all directions to form strong, taut triangles. The cable roof is secured to a reinforced concrete ring along the perimeter of the dome. The 2,750-foot concrete ring rests on slide-bearing Teflon pads that allow the roof to flex slightly during high winds.

It is this precise dance of pulling and pushing that allows tensegrity roofs like the Georgia Dome to soar far above the stands and the playing field below.

Here's how this dome stacks up against some of the biggest domes in the world.

(diameter, in feet)

Chart showing the relative size of the biggest domes in the world Georgia Dome

840'

Fast Facts:

* The Georgia Dome contains 110,000 cubic yards of concrete, enough to build a sidewalk from Atlanta to Cincinnati.

* The dome is as tall as a 29-story building, as tall as an average redwood tree, and three feet taller than the United States Capitol building.

* At a rate of 750,000 gallons of water per second, Niagara Falls would take 12 minutes to fill the Georgia Dome.

* The Georgia Dome contains 8,300 tons of reinforced steel -- more than the weight of iron and steel used in the Eiffel Tower.

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The Ga Dome roof is made of teflon, 1/2 inch think I believe, composed of dozens of individual panels supported by a cabling system. The panels could fall in (as happened several years ago with a few of them due to rain) one at a time, but nothing like what happened to that Hefty bag in Minnesota is very likely. That thing was basically supported by hot air.

didnt they renovate after that incident to improve the strength.

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You guys kill me! What did you get down there, like 6 inches? We're supposed to get a minimum of 6" tonight and I bet the school kids will still have to go on time. I understand that you aren't used to it, but up here, 6" is little more than a dusting... As for the roof caving in, the metrodome had 16" of snow sitting on it, which weighs a bit more than 6"...

The GA Dome is also built differently, it's a hard translucent cover - call them panels, which if we had 17" of snow would probably hold up better than the Metrodome.

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