层数4层，层高：底层为5m，标准层为3.5m，室内外高差0.15m，基

The number of floors is 4, the height of the floor: the bottom floor is 5m, the standard floor is 3.5m, the height difference between indoor and outdoor is 0.15m, the top surface of the foundation is 0.6m from the outdoor floor, and the ground roughness grade is Class B. According to the multi-storey building structure design, the reasonable service life of the building is 50 years, the structural safety level is two, the fire resistance level is two, and the environmental category is the first type. This design does not consider the seismic requirements.

Layer number 4 layers, layer height: the bottom layer is 5m, the standard layer is 3.5m, indoor and outdoor height difference 0.15m, the base top surface from the outdoor floor 0.6m, the roughness of the ground grade is Class B. According to the multi-storey building structure design, the reasonable life of the building is 50 years, the structural safety level is two, fire resistance level is two, the environment category is a class, this design does not consider seismic requirements.

The number of floors is 4, the floor height is 5 m, the standard floor is 3.5 m, the indoor and outdoor height difference is 0.15 m, the top surface of the foundation is 0.6 m away from the outdoor terrace, and the ground roughness is class B. According to the structural design of multi-storey building, the reasonable service life of the building is 50 years, the structural safety grade is grade II, the fire resistance grade is grade II, and the environmental category is class I. the seismic requirements are not considered in this design.<BR>