Abstract:In order to assemble the pile sleeve cluster with safe, high quality and high efficiency, the deep-water jacket Project A is taken as an example. Do strength check for the whole structure and calculate lifting point. Analyze the disconnection condition for the crane. The finite element analysis software SACS is used to analyze the strength of the whole structure, and all the results are below the allowable value. The reaction force of the weld joint is extracted to pay attention to the welding percent of one node, and the mechanical analysis is used to calculate the lifting point, and all the results are below the allowable value. It is proved that this lifting analysis plan is safe and efficient and has reference value.