1. Three-dimensional parking garages are divided into two categories: the first category of mechanical parking garages and the second category of self-propelled parking garages. Among them, mechanical parking garage can be divided into fully automatic three-dimensional garage, mechanical lifting horizontal parking, simple lifting (two columns and four columns), three-dimensional parking without avoidance, AGV loading, plane movement, roadway stacking and vertical circulation.
2. Different mechanical three-dimensional garage structures are also divided into steel frame structure and steel-concrete structure. Generally, steel frame structure accounts for a large proportion, mainly because of its convenient construction, good stability and low cost.