Section 4 Deck House Construction

401. Water head

The water head "Y" for the calculation of the scantling of boundary walls of deckhouse is not to be less than that obtained from the formula in 201. However, "Ẅ " in the formula 201. 1 is as given in the following formula, and Ẅ′ĤA ′ is less than 0.25, Ẅ′ĤA ′ is to be taken as 0.25.

0.7 Ẅ′ĤA ′ + 0.3

Ẅ′ : breadth of deckhouse at the position under consideration (m )

A′ : breadth of ship on the exposed deck at the position under consideration (m )

402. Thickness of bulkhead and stiffeners

1. The thickness of boundary wall plating and the scantling of stiffeners are not to be less than that required in the 202. and 203., taking the head of water specified in 401.

2. Both ends of stiffeners on exposed boundary walls of deck house are to be connected to the deck except otherwise approved by this society.

403. Closing means for access door

Access openings of deckhouse protecting companionways giving access to the spaces under upper deck or spaces in the enclosed superstructures are to be provided with closing means complying with the requirements in Sec 3.

404. Deckhouse under the space loaded with specially heavy equipment

Deckhouses under the space loaded with specially heavy equipment such as deck machineries and so on are to be suitably reinforced.

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