随着海工建造领域的发展，许多百吨级大型结构物需要通过海运方式运送到总装场地，在卸船转运过程中，驳船受到风、浪、流的影响，将会产生六自由度运动，使吊物产生相对于地面的运动，从而导致陆地起重机进行吊装时不可避免产生晃动，致使作业效率低下，且带来一系列安全隐患。针对大型结构物的吊装卸船，采用数值模拟的方式分析了驳船的运动响应与吊装过程的动力学特性，针对整个过程的作业空间及吊索受力等情况提前进行安全性评估，并针对主要安全风险提出相应措施，为后续类似的项目施工提供参考。

With the development of the offshore construction industry， many 100-ton large structures need to be transported to the assembly site by sea. In the unloading and transfer process， the barge is affected by the wind， waves， and currents， which will produce six-degree-of-freedom motion， so that the suspended load moves relative to the ground， causing the suspended load to sway， which affects the crane operation， resulting in operational inefficiencies and a series of potential safety hazards. In this paper， for hoisting and unloading of large structures， numerical simulation is used to analyze the barge movement and the dynamic characteristics of the lifting process， to assess in advance the safety of the operating envelope and sling forces throughout the operation， and to propose countermeasures for the main safety risks， in order to provide reference for the construction of subsequent similar projects.