What is the purpose of the bulkhead?

Vertical partition walls which subdivide the ship interior into watertight compartments. Bulkheads reduce the extent of seawater flooding in case of damage and provide additional stiffness to the hull girder. They can be flat or corrugated.

What are the 3 types of bulkhead?

The three basic types of bulkheads found on most ships, are: i. watertight, ii. non-watertight and iii. oiltight or tank bulkheads.

What is the location of the water tight bulkhead and what is the regulation?

Factor 3: Position based on SOLAS rule, which states that the collision bulkhead should be located aft of the forward perpendicular at a distance not less than 5 percent of the ship’s length of the ship or 10 meters (whichever is less). The distance must also not exceed 8 percent of the ship’s length.

How bulkheads are tested for tightness?

Bulkheads forming tank boundaries are tested by testing the tank. Peak Bulkheads, other than those forming peak tank boundaries, are tested by filling the peak to the level of the load waterline.

Why bulkheads is the important element of transverse strength?

Transverse bulkheads divide the ship from side to side and are habitually used to create watertight compartments on the vessel. Additionally, they stiffen the structure of the hull, preventing deformation and racking stresses.

How are bulkheads built?

Bulkheads are normally constructed in the form of a vertical wall built in concrete, stone, steel or timber. The concrete, steel or timber walls can be piled and anchored walls, whereas the concrete and stone walls can also be constructed as gravity walls. Example of bulkhead structure constructed by Gabion mesh boxes.

What is plate type bulkhead?

> Plain bulkheads consist of plates stiffened by rolled sections such as bulb plates and angles spaced approximately 760mm apart. The plates of the bulkhead are laid in a horizontal direction.

What is the transverse bulkhead?

Why are corrugated bulkheads used on ships?

1. Introduction. Corrugated bulkhead is used as the bulkhead of cargo hold compartment of the some kinds of vessels for having easier maintenance, easier loading and unloading and more flexible shape in shrinkage and expansion by thermal load compared to the flat stiffened bulkhead.

What is wash bulkhead?

Definition of wash bulkhead : a bulkhead in a ballast tank to prevent excessive movement of liquid in the tank.

What are bulkheads made of?

Traditional bulkhead materials include wood timbers, treated lumber used for sheeting and steel sheet pilings. These materials work reasonably well and are cost-effective, but the wood can easily be damaged by the water and rot away, while the steel suffers from corrosion and electrochemical reactions.

What is the purpose of longitudinal bulkheads in tankers?

The longitudinal bulkhead also plays an essential rule in dividing the cargo hold into several compartments. Besides, the longitudinal bulkhead is one of the construction elements which to strengthen the longitudinal strength of the ship, and it is always used primarily for a tanker.