This project is the main gate of the Tangshan World Horticultural Exposition in 2016. The overall shape of the building implies "Feng Laiyi". It adopts a large-span space tree-shaped skeletal membrane structure system, which is gradually reduced from the middle to the two sides in the three-dimensional direction by 13 feather units. Tilt, The formation of two layers of folded and undulating wings from the inside to the outside, the highest height of 26 meters, the maximum suspension span of 27 meters. The main gate has become a permanent landmark of the Tangshan World Park.