Based on the characteristics of the precast structure construction in this project, the main factors affecting the selection of tower cranes are the weight of precast components, the lifting position of precast components, the lifting times of tower cranes during the construction process, and the surrounding environment.

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After market investigation and comprehensive consideration, the tower crane model selected is D3 # building, T7020-12E tower crane with an arm length of 50m; D5 # building, TC7525A-16 tower crane with an arm length of 55m; D6 # building, TC7030A-12 tower crane with an arm length of 50m.

The relevant parameters of tower cranes are as follows:.