Section 2 Construction and Scantlings

201. Water head h

1. The water head

h for the calculation of the scantlings of superstructure end bulkheads and

boundary walls of deckhouses is not to be less than obtained from the following formula:

ᾜ Ņ ᾍᾏ Nᾎᾚ Ň ← Ń (m)

where:

ᾍ and ᾎ

= As given in Table 16.1

ᾏ = As given in Table 16.2

ᾚ = As obtained from the following formula :

à P 90 m : ᾚ Ņ LǾLĴK à , à ≥ 90 m : ᾚ Ņ LǾLJÌ Ã Ñ ÌǾĨJ

← = Vertical distance from the load line to a mid-point of the span of stiffeners for calculation

of stiffeners, to a mid-point ings (m)

of the panel for calculation of thickness of the bulkhead plat-

Table 16.1 Values of

ᾍ and

ᾎ Table 16.2 Values of ᾏ

2. The water head is not to be less than obtained from the formula, In Table 16.3. irrespective of the provisions in Par 1:

Table 16.3 Water head, h (m)

202. Thickness of bulkhead and wall platings

1. The thickness of bulkheads and wall platings for barges is not to be less following formula.

than obtained from the

ᾼ Ņ Į ĊΡ̓Üᾜ (mm)

where:

Ċ = Spacing of stiffeners (m)

h = Water head specified in 201.

2. The thickness of bulkhead and wall platings is not to be less than obtained mula, irrespective of the requirement in Par 1.

from the following for-

Ã

ᾼ Ņ ÜÌLL Ñ ĨǾL (mm)

203. Stiffeners

1. The section modulus of stiffeners on bulkheads and walls is not to be less following formula:

than obtained from the

Ě Ņ ĮǾJ ĊᾜᾨĪ (cm3)

where :

Ċ, h = As specified in 202.

l = Tween deck height (m). Where, however,

l is less than 2 m, l

is to be taken as 2 m.

2. Both ends of stiffeners on the exposed bulkheads and, walls are to be connected to the deck by welding except where otherwise approved by the Society.