Xiu Shui Residential building Abstract: This engineering for jiujiang xiushui residential building,according to the functions of the building is divided into six, A total construction area of square meters, meters for the building elevation. The design of engineering structures using multi-storey reinforced concrete frame structure, the basic steps: the determination of the structure of the calculation diagram; load calculation; internal force analysis; combination of internal forces; beams, reinforced concrete column cross section, board design, the design of the staircases, basic design and structural mapping, such as construction. Among them, the internal force calculation to consider the following four types of loads, namely, Constant load, live load, wind load and seismic action; column, the design uses a flexible plate theory; beam design uses plastic theory; staircase staircase selection plate;