Figure 41

The Georgia dome is the largest cable-supported stadium dome which was built in 1992 in downtown of Atlanta. In 1996 Olympics games event of gymnastics and basketball was hosted in this stadium.

The patented ten-star dome structure, whose roof weight only 68 pounds, but it has the enough strength to support a fully loaded pickup truck (approximately 20 + tons). The construction was based on tensegrity principles which allows for a “pull and push” cable support system. Hence, the roof structure is lightweight, yet it is structurally strong.

The short posts support the weight of the roof, which are hold in place by cables attached on either end. The pull of the cables on the posts creates the series of tightly-stretched triangles that gives the concept of tensegrity.

The entire perimeter of the dome supports a 2750-foot reinforced concrete ring of the roof. The concrete ring helps in sustaining the movement of roof from the extreme wind condition with the help of Teflon pads.

The hyper tensegrity, construction of the roof incorporates reinforced fabric positioned over tensioned cables so that it only requires being secured at the edges. This allow for no distortion of view for stadium spectators.Due to translucent Teflon-coated fibreglass roof, minimum light is needed during daytime and during night the dome glows, creating a radiant landmark which is visible from all parts of the city.

Figure 41