公开(公告)号：US20210148075A1

公开(公告)日：2021-05-20

申请号：US17045111

申请日：2019-04-02

Applicant: SAIPEM S.P.A.

Inventor： Vincent George MCCARTHY

IPC: E02B17/00 ,  B66C23/52 ,  B63B27/10 ,  B63B85/00

Abstract: An assembly for lifting a payload of an offshore platform is provided. The offshore platform includes a support structure supporting the payload. The payload includes a main deck and a column directly connected to the support structure, the column supporting the main deck. The assembly includes a lower lifting device, having a welding surface weldable to a welding portion of the column and an upper lifting device having a coupling interface adapted to couple to a coupling portion of the payload and a plurality of tension rods, connecting the lower lifting device and the upper lifting device. At least some tension rods of the plurality of tension rods extend for a rod length along a rod direction (X-X) between the lower lifting device and the upper lifting device. At least some tension rods of the plurality of tension rods are pre-tensioned to exert a compressive action to the payload.