Download ABS Shipbuilding and Repair Standards---Pub87_SRQS_Guide[1] PDF

TitleABS Shipbuilding and Repair Standards---Pub87_SRQS_Guide[1]
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Page 1

GUIDE FOR

SHIPBUILDING AND REPAIR QUALITY STANDARD
FOR HULL STRUCTURES DURING
CONSTRUCTION

MARCH 2007

American Bureau of Shipping
Incorporated by Act of Legislature of
the State of New York 1862

Copyright 2007
American Bureau of Shipping
ABS Plaza
16855 Northchase Drive
Houston, TX 77060 USA

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Page 22

16 ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007

TABLE 13
Alignment

Detail Standard Limit Remarks
Alignment of flange of T-longitudinal

a b


a 0.04b strength a = 8.0 mm

Alignment of height of T-bar, L-angle
bar or bulb

a t




Primary members
a 0.15t


Secondary members

a 0.20t

a = 3.0 mm

Alignment of panel stiffener

L

d


d L/50

Gap between bracket/intercostal and
stiffener

a




a 2.0 mm a = 3 mm

Alignment of lap welds

a

a




a 2.0 mm a = 3 mm

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ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 17

TABLE 14
Alignment

Detail Standard Limit Remarks
Gap between beam and frame

a




a 2.0 mm a = 5.0 mm

Gap around stiffener cut-out

s s
s



s 2.0 mm s = 3.0 mm

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ABS GUIDE FOR SHIPBUILDING AND REPAIR QUALITY STANDARD FOR HULL STRUCTURES DURING CONSTRUCTION . 2007 37

TABLE 34
Weld Surface Repair

Detail Repair Standard Remarks
Weld spatter




1 Remove spatter observed before blasting
with scraper or chipping hammer etc.

2 For spatter observed after blasting:
a) Remove with a chipping hammer,

scraper, etc.
b) For spatter not easily removed with a

chipping hammer, scraper, etc., grind
the sharp angle of spatter to make it
obtuse



In principal, no grinding is applied to
weld surface


Arc Strike


Removed the hardened zone by grinding or
other measures such as overlapped weld bead
and etc.

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