References on Crane Design
Aker Solutions
as a subcontractor of Aker MH (=Maritime Hydraulics) (Kristiansand)
We have finished over 150 projects for our client on a large number of rigs.
Rig names – we were involved:
Petrorig-1,2,3; Songa Neptune; TMT-1,2; Oseberg East; CNOOC; Ocean Vanguard; Pride Carlos Walter; Seadrill-8,9,10; Bideford Dolphin; Transocean; Carolina; AkerH6a,H6b; Sevan; MPF; West E Drill; West Eminence; West Future II; Ben Loyal; Songa Venus; Songa Dee; Songa Explorer; Frigstad; West Aquarius; Snorre A; Snorre B; Thunderhorse; Petroserv; Grupo R; Pride North America; Pride Brazil; Odebrectht 1; West Alpha; West Navigator;
List of main Crane projects:
West E Drill |
Gantry Crane |
West Eminence |
Gantry Crane |
Seadrill 10 |
Gantry Crane |
Sevan |
Gantry Crane |
TMT1 |
Riser Crane |
AkerH6a |
Gantry Crane |
SNORRE B |
Gantry Crane |
Frigstad |
Riser Handling Crane |
West Alpha |
Gantry Crane |
Frigstad |
Riser Handling Crane |
Crane Design Details
The Gantry Crane is designed as a trolley with a jib running on top of two main girders. Those main girders are connected to two legs with drive assemblies which allows the crane to move sidesway. The jib can pick up pipes from a horizontal position between the two main girders and bring them in to a vertical position.
The design of several Gantry Crane of this type was checked: first evaluating the possible loading scenarios and finding the governing situations. The main beam model of the crane was checked in several positions. Also the main SWL (safe working load) was applied in the most realistic way. The sling arrangement was taken into account. All details have been checked, and some found to be critical. These have been reinforced and have found a possible solution together with the project designer. Achieving a Crane design that has been successfully copied for several projects afterwards.