Section 3 Shell Plating for Midship Part of Barge

301. Minimum thickness

The minimum thickness of shell plating below the strength deck for the midship part of barge is not to be less than obtained from the following formula:

ᾼ Ņ LǾLĨĨÃ Ñ ĨǾĴ (mm)

302. Thickness of side shell plating

1. The thickness of side shell plating other than the sheer strake at the strength deck for the midship part of barge is not to be less than obtained from the following formula:

ᾼ Ņ ĨǾÌĊ Ρ̓Üᾘ Ñ LǾLĨÃ Ñ ÌǾJ (mm)

where:

S = Spacing of longitudinal or transverse frames (m).

2. In barges with square bilge, the thickness of the lowest strake of side shell plating is not to be less than obtained from the formula in Par 1 and 304., whichever is the greater.

303. Sheer strake for midship part

The thickness of sheer strakes at the strength deck for midship part is not to be less than 0.75 times that of the stringer plate of the strength deck. In no case, however, is the thickness to be less than that of the adjacent side shell plating.

304. Thickness of bottom shell plating

The thickness of bottom shell plating including bilge strake(excluding keel plate) for the midship part of ship is not to be less than obtained from the formula given in Table 5.1.

Table 5.1. Thickness of bottom shell plating