Located in Liangxiang, the fringe of Beijing, the sports center adds about 15,692 square meters athletic space to the school, includes a 3000 seats basketball stadium, a 10 lanes swimming pool, a gymnasium, a martial art space, and rooms for boxing, taekwondo, table tennis, etc. The project draws inspiration from Da Vinci’s flying machine, as well as the geometry of trajectory parabola widely used in military science. Accordingly, two sets of parametric surfaces are created to suspend in the air as the roof for the building. The topological volume framed by the two curve layers are constructed through space frame structurally and covered by standing seam roofing from above and aluminum curtain wall system from below.