The total construction area of the project is 389972 square meters. The construction area of Hangxiao steel structure is 34000 square meters. There are 3 floors underground and 12 floors above the ground, with a height of 67 meters and a maximum span of 27 meters. The superstructure of the project adopts the reinforced concrete composite structure frame core tube system, and the underground part adopts the concrete-filled steel tube structure. The project won the gold medal of China steel structure.