Early age movement in offshore structures with various bearing conditions

Abstract Grouted connections (GCs) consist of two infiltrating steel tubes different diameters and a grout material bonding the together. Predominantly, GCs are used to connect foundation piles with jacket support structure. Additionally, it can be applied for monopile substructures. A challenging scientifically still marginally analysed detail grouted is influence early age movement (EAM), also known as cycling (EAC) on final load bearing behaviour connection. After grouting until end curing material, offshore structure partially supported by fluid several hours. During this time waves current affect soft connections. This leads relative during GCs, which EAM. Previous investigations showed damage due vertical These results form basis guideline limits. According DNVGL-OS-J101 from 2014, must ensured that process EAM does not exceed 1 mm. Since 2016 limit value applies lateral according DNVGL. However, barely experimentally nor numerically investigated. Thus, authors involved in comprehensive research project (GREAM) addressing topic. paper focusses Finite Element Analysis structures under varying boundary conditions sea states analyse amplitude