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DECK STRUCTURE INCLUDING CROSS STRIPS, MAIN CARGO HATCHWAYS, HATCH
COVERS, COAMINGS AND TOPSIDE TANKS
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STRUCTURAL MEMBER
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EXTENT OF MEASUREMENT
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PATTERN OF MEASUREMENT
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1.
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Cross Deck
Strip plating
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Suspect cross deck strip plating
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a.
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5 point
pattern between underdeck stiffeners over 1 metre length
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2.
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Underneck
Stiffeners
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a.
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Transverse
members
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a.
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5 point
pattern at each end and mid-span
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b.
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Longitudinal
member
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b.
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5 point
pattern on both web and flange
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3.
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Hatch
Covers
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a.
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Side and
end skirts, each 3 locations
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a.
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5 point
pattern at each location
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b.
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3
longitudinal bands, outboard strakes (2) and centreline strake (1)
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b.
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5 point
measurement each band
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4.
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Hatch
Coamings
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Each side and end of coaming, one band lower 1/3, one
band upper 2/3 of coaming
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5 point measurement each band, i.e. end or side
coaming
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5.
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Topside
Water Ballast Tanks
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a.
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Watertight
transverse bulkheads
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i.
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lower 1/3 of
bulkhead
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i.
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5 point
pattern over 1 sq. metre of plating
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ii.
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upper 2/3
of bulkhead
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ii.
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5 point
pattern over 1 sq. metre of plating
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iii.
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stiffeners
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iii.
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5 point
pattern over 1 sq. metre length
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b.
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2
representatives swash transverse bulkheads
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i.
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lower 1/3
of bulkhead
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i.
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5 point
pattern over 1 sq. metre of plating
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ii.
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upper 2/3
of bulkhead
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ii.
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5 point
pattern over 1 sq. metre of plating
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iii.
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stiffeners
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iii.
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5 point
pattern over 1 sq. metre length
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c.
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3
representatives bays of slope plating
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c.
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i.
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lower 1/3 of
tank
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i.
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5 point
pattern over 1 sq. metre of plating
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ii.
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upper 2/3 of
tank
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ii.
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5 point
pattern over 1 sq. metre of plating
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d.
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Longitudinals, suspect and adjacent
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d.
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5 point
pattern both web and flange over 1 metre length
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6.
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Main Deck
Plating
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Suspect plates and adjacent (4)
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5 point pattern over 1 sq. metre of plating
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7.
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Main Deck
Longitudinals
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Minimum of 3 longitudinals where plating
measured
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5 point pattern on both web and flange over 1 metre
length
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8.
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Web
frames/Transverses
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Suspect plates
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5 point pattern over 1 sq. metre
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