Sports Center Stadium in a cantilever roof design

Project brief：

The Sports Center Stadium Canopy steel works is located in Jinan City, which is building major sports, was sickle-shaped, using tube truss structure + Net framework to strengthen the arch structure, and some support in the lower part of the grandstand structure on reinforced concrete, and some landing. The upper part of steel from south to north gradually lower the highest point the structure of 30m, the lowest point in 20m, the maximum span of 38.5m, center field cantilevered steel canopy 14m, total area of 3760m2.