On the base of the project "stereoscopic garage", lift park garage has been analyzed completely and designed, including the whole design, the design of the place-fetch machine and circumrotatory machine, the design of the upgrade system and the design of the steel structure framework. The mathematics model about the immobile comb was set up. Optimal design was carried through. This made the structure of the immobile comb more reasonable and decreased the whole weight of the garage and the load of the steel structure framework. The traction power and the press ratio of the traction was analyzed and checked, which made it accord with the demand of the power and the life. The analysis of the force and the distortion on the steel structure framework was carried through by the finite element method. The optimal design on the steel structure framework was carried through with Lagrange method, which made the weight of the steel structure framework become more light.
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