Watertight bulkhead
Divide the ship into different water tight compartments thus restricting the volume of water which will come in if the shell plating damaged.
Also serves to separate to separate different types of cargoes and divide tank and machinery spaces from cargo space
Also assists in prevention of spreading of fire from one part of the ship into another part of the ship
Number of bulkheads depend on length of ship and position of machinery space.
Stiffeners are fitted at 750 mm apart, but collision bulkhead and deep tanks have 600 mm spacing.
Divide the ship into different water tight compartments thus restricting the volume of water which will come in if the shell plating damaged.
Also serves to separate to separate different types of cargoes and divide tank and machinery spaces from cargo space
Also assists in prevention of spreading of fire from one part of the ship into another part of the ship
Number of bulkheads depend on length of ship and position of machinery space.
Stiffeners are fitted at 750 mm apart, but collision bulkhead and deep tanks have 600 mm spacing.
Collision bulkhead
Each ship to have one collision bulkhead located forward.
Avoids flooding of ship in case of damage to bows
Location is such that it is not so much forward as to get damaged on impact , Neither it should be too far aft so that compartment flooded forward causes extensive trim by head. As a rule located at minimum distance to get maximum space for cargo.
Minimum at 1/20 of ships length from forward perpendicular
The collision bulkhead is continuous to upper most continuous deck
The collision bulkhead is 20% stronger than other bulkheads
STIFFENER : 180 mm bulb plate thickness spaced 600 mm apart (whr as in normal bulk heads, its spaced 760 mm apart)
The stringers 200 mm channel beam used with brackets
Each ship to have one collision bulkhead located forward.
Avoids flooding of ship in case of damage to bows
Location is such that it is not so much forward as to get damaged on impact , Neither it should be too far aft so that compartment flooded forward causes extensive trim by head. As a rule located at minimum distance to get maximum space for cargo.
Minimum at 1/20 of ships length from forward perpendicular
The collision bulkhead is continuous to upper most continuous deck
The collision bulkhead is 20% stronger than other bulkheads
STIFFENER : 180 mm bulb plate thickness spaced 600 mm apart (whr as in normal bulk heads, its spaced 760 mm apart)
The stringers 200 mm channel beam used with brackets
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