圆形悬吊屋顶：靠一圈缆索撑开的球馆

Design a sports gymnasium in the manner of Paulo Mendes da Rocha's Paulistano Club — a circular hall whose roof is a steel plate suspended from cables slung between only six external concrete buttresses, leaving the whole interior column-free and the roof visibly hanging rather than sitting. Compose a low circular building with six massive concrete supports around the perimeter, a shallow dished steel roof hung between them with a continuous glazed gap underneath, the roof edge appearing to float clear of the walls, tropical trees around, bright São Paulo daylight, low three-quarter view, 24mm lens, architectural photography, ultra photorealistic, 8K