This project is the second phase project of industrial general B1 plant, and it is proposed to build a four storey frame industrial general plant above ± 0.00. The project plane is in the shape of "I", and the building layout is: the column grid is 8 × 7.5, the column section is divided into two sizes of 600 × 600mm and 600 × 800mm, the ribbed floor is adopted, with four spans of 64 bays, the floor height of the first floor is 5m, and the floor height of the second to fourth floors