Structural Member
|
Extent of
Measurement
|
Pattern of
Measurement
|
1.
|
Deckhead and
button strakes, in way of stringer platforms
|
Plating
between pair of stiffeners at three locations — approx. 1/4, 1/2 and 3/4 width
of tank
|
5 points
pattern between stiffeners over 1 metre length
|
2.
|
All other
strakes
|
Plating between
pair of stiffeneners at mifddle location
|
Single
measurement
|
3.
|
Strakes in
corrugated bulkheads
|
Plating for
each change of scantling at centre of panel and at flange or fabricated
connection
|
5 point
pattern over about 1 square metre of plating
|
4.
|
Stiffeners
|
Minimum of
three typical stiffeners
|
5 point pattern
over span between bracket connections (2 measurements across web at each
bracket connection, and one at centre of span). For flange, single measurements
at each bracket toe and at centre of span.
|
5.
|
Brackets
|
Minimum of
three at top, middle and bottom of tank.
|
5 point pattern
over area of bracket
|
6.
|
Deep webs
girders
|
Measurements
of toe bracket and centre of span
|
For web, 5
point pattern over about 1 square metre. 3 Measurements across face
flat.
|
7.
|
Stringer
platforms
|
All stringers
with measurements at both ends and middle
|
5 point
pattern over 1 square metre of area plus single measurements near bracket toes
and on face flats.
|