Civil Engineering Reference
In-Depth Information
TABLE 5.8
Checklist for Topside Lift Analysis
—
cont
'
d
Check
(Yes/No)
Items
Check Point
Miscellaneous
1
Design of spreader beam or frame
2
Design of padeyes on the spreader beam or frame, if they
exist
3
Lift drawing enclosed and reviewed and the derrick barge
main block and auxiliary block load-carrying capacity
checked. Check the requirement for load shedding if the
hook load is greater than the load-carrying capacity of the
derrick barge.
TABLE 5.9
Checklist for Jacket/Topside Transportation Analysis
Check
(Yes/No)
S/N
Items to Check
Computer Model
It is assumed that the model is checked for dimensions, eleva-
tions, member group and section properties in the in-place/
load-out analysis and is upgraded to suit the current analysis.
1
Member end releases for sea fastening
2
Sea fastening material yield strength
3
Boundary conditions for dead load case
4
Boundary conditions for tow load case
Loads
It is assumed that the load calculations are verified in the
in-service as load-out analysis and only relevant load cases
are picked for the current analysis.
5
Remove future loads, operating weights and live loads, add
rigging loads
6
Load contingencies in static and tow analysis
7
Load combinations in static analysis
8
Center-of-rotation data
9
Roll and pitch direction representation
10
Consideration of self-weight during inertia load generation.
(Continued)
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