1 Bulk carriers of 150 m in length and
upwards of single-side skin construction, carrying solid bulk cargoes
having a density of 1,780 kg/m3 and above, constructed
before 1 July 1999, shall comply with the following requirements in
accordance with the implementation schedule specified in regulation 3:
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.1 The transverse watertight bulkhead between
the two foremost cargo holds and the double bottom of the foremost
cargo hold shall have sufficient strength to withstand flooding of
the foremost cargo hold, taking also into account dynamic effects
resulting from the presence of water in the hold, in compliance with
the Bulk carrier bulkhead and double bottom strength standards. For
the purpose of this regulation, the Bulk carrier bulkhead and double
bottom strength standards shall be treated as mandatory.
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.2 In considering the need for, and the extent
of, strengthening of the transverse watertight bulkhead or double
bottom to meet the requirements of 1.1, the following restrictions
may be taken into account:
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.3 For bulk carriers using either of, or both,
the restrictions given in 1.2.1 and 1.2.2 above for the purpose of
fulfilling the requirements of 1.1, these restrictions shall be complied
with whenever solid bulk cargoes having a density of 1,780 kg/m3 and
above are carried.
2 Bulk carriers of 150 m in length and
upwards constructed on or after 1 July 2006, in all areas with double-side
skin construction shall comply with the following requirements:
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.1 Primary stiffening structures of the double-side
skin shall not be placed inside the cargo hold space.
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.2 Subject to the provisions below, the distance
between the outer shell and the inner shell at any transverse section
shall not be less than 1,000 mm measured perpendicular to the side
shell. The double-side skin construction shall be such as to allow
access for inspection as provided in regulation
II-1/3-6 and the Technical Provisions referring thereto.
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.1 The clearances below need not be maintained
in way of cross ties, upper and lower end brackets of transverse framing
or end brackets of longitudinal framing.
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.2 The minimum width of the clear passage through
the double-side skin space in way of obstructions such as piping or
vertical ladders shall not be less than 600 mm.
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.3 Where the inner and/or outer skins are transversely
framed, the minimum clearance between the inner surfaces of the frames
shall not be less than 600 mm.
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.4 Where the inner and outer skins are longitudinally
framed, the minimum clearance between the inner surfaces of the frames
shall not be less than 800 mm. Outside the parallel part of the cargo
hold length, this clearance may be reduced where necessitated by the
structural configuration, but, in no case, shall be less than 600
mm.
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.5 The minimum clearance referred to above shall
be the shortest distance measured between assumed lines connecting
the inner surfaces of the frames on the inner and outer skins.
3 The double-side skin spaces, with
the exception of top-side wing tanks, if fitted, shall not be used
for the carriage of cargo.
4 In bulk carriers of 150 m in length and upwards,
carrying solid bulk cargoes having a density of 1,000 kg/m3 and
above, constructed on or after 1 July 2006:
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.1 the structure of cargo holds shall be such
that all contemplated cargoes can be loaded and discharged by standard
loading/discharge equipment and procedures without damage which may
compromise the safety of the structure;
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.2 effective continuity between the side shell
structure and the rest of the hull structure shall be assured; and
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.3 the structure of cargo areas shall be such
that single failure of one stiffening structural member will not lead
to immediate consequential failure of other structural items potentially
leading to the collapse of the entire stiffened panels.