الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Floaters float-over (FFO) is a new method of topsides/deck installations that has the concept of floating the topsides/deck using two groups of floaters connected at its opposite sides. By ballasting and deballasting the floaters, the system will be able to raise the deck from the transportation barge, move it, and then lower it down above the jacket/spar. FFO can work in wider range of sea states more than conventional float-over methods due to its small water plane area and large mass. Moreover, FFO eliminates the need to design the platform for a ”float through”. FFO is a competitive method compared to other heavy lift, float-over methods.
In this thesis, the concept and design philosophy are presented. The performance of the system during its consequential installation stages is discussed with regards to the stability, motions and strength aspects. The main stages of FFO installation, namely, transportation and lowering of the group of floaters (FG), connecting FG to the deck, separation of the deck from the transportation barge and mating of the deck with jacket legs, are presented. In each step stability and motions are determined at the prevailing sea state. Based on the results of the motion analysis, the impacts and internal forces at the deck are computed and evaluated according to the industry codes and standards. A case study for a deck that can be installed by either heavy lifting or float-over is included, to indicate the suitable sea state for installation and the deck required stiffening.