The subproject of this project is 1-16 buildings, all of which are 18 storey residential buildings. There are a total of A, B, B, C, D, E, F, G, H, J, K, L, M12 house types. Design content: ventilation and smoke control. The ventilation of residential kitchens and bathrooms that do not depend on the external wall is solved by the civil engineering specialty as variable pressure air ducts. The ventilation rate of the shop toilet is times/h.