National Stadium structure characteristics are very significant, the main structure design life of 100 years, the fire rating for a, seismic fortification intensity of 8 degrees, underground engineering waterproof level 1. The main building of the project is the space of the saddle, the length of 333 meters north and south, the body of the giant space saddle-shaped steel truss weaving “Bird’s Nest” structure, the total steel capacity of 42,000 tons, concrete stands divided into upper, Layer, the concrete structure of the stands for the ground floor, 7 layers of the ground reinforced concrete frame – shear wall structure system.