非滑道建造抬梁结构设计与应用研究

Design and Application of Conveying Frame for Constructionof Large-Scale Structure

在海洋石油工程建造领域,传统组块平台建造往往在滑道上进行,对滑道资源依赖较强.为了缓解场地滑道资源不足的局面,组块无滑道建造技术应用越来越多,主要是采用SPMT（Self-propelled Modular Transporter）小车进行滚装运输装船.为了满足结构物与模块车的运输要求,需要设计一种用于进行分载的抬梁结构.论文基于南海某项目组块无滑道建造需要,设计一种箱型抬梁结构,并利用有限元分析软件ANSYS建立抬梁结构模型,对组块在建造、运输等不同工况下的抬梁结构强度进行有限元分析.分析结果表明,论文所设计的抬梁结构的单腿可最大承载1000余吨,满足该组块建造要求,为大型结构物无滑道建造技术提供了基础数据,具有一定的工程应用价值.

Large-scale structures in offshore oil engineering are constructed on the slide way traditionally. Because of the limitation of the slide resource, more and more researchers pay attention to non-slide construction of large structures. One main method is to use SPMT vehicle to load out. In order to meet the requirement of loading out,the conveying frame structure is designed, which can share the load with the SPMT vehicle. A simulation model is built with software ANSYS to analyze strength of the conveying frame in different construction condition. It can be concluded from the analysis that, the maximum load capacity at the single point of the conveying frame is about 1000MT, which can meet the requirement of the project in the South China Sea. These results will provide basic data for study of the non-slide construction for large-scale structure and are of value to the engineering application.