SCE group SI002 SCE group title Topside Structures Topsides or surface primary structure. To provide and maintain structural integrity under all expected actions through service life, and to provide sufficient robustness to maintain availability of critical systems during a major incident Integrated deck/cellar deck/module support frame/deck trusses • Module structure/module supports • Bridge structure and supports • TR structure, plating (skin) and supporting structure • Topsides anchor and mooring points, load transfer system • Structural steel supporting safety critical process equipment • Dropped object protection • muster platforms and lifeboat davits • Escape and evacuation structure and supports • Flares, vents and drilling derrick structures • Crane pedestals • Helidecks and supporting structure At module and elevation level