自升式平台桩腿的模型试验及数值仿真研究

The Model Test and Numerical Simulation for Legs of Jack-up Platform

自升式海洋平台作为目前的主流装备,越来越受到行业的关注。桩腿作为其主要的受力构件,其强度直接关系到整体结构的稳定性。通过模型试验和数值模拟的方法探讨桁架式自升式海洋平台桩腿的力学性能。其载荷形式主要模拟风浪流对于结构的横向作用。最后将实验结果和数值模拟进行对比,表明竖向立管是其主要受力构件,且制造误差对于结果的影响较大。

As the main equipment of the current mainstream,the jack-up platform is getting more and more attention in the industry.Leg is the main bearing member and the strength of leg is directly related to the stability of the whole structure.The mechanical performance of the jack-up platform is discussed by the model test and numerical simulation.The main form is mainly to simulate the lateral action of wind,waves and current in the structure.Lastly,the experimental results are compared with the numerical simulation.It is indicated that the vertical pipe is the main bearing component and the manufacturing error has a greater impact on the results.