Table of Contents
What is the purpose of longitudinal bulkhead?
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.
What is meant by transverse bulkhead?
Meaning of “Transverse bulkhead” A partition wall of planking or plating running in an athwartship direction across a portion or the whole breadht of a ship.
What are the types of bulkhead?
Types of Bulkheads as per construction:
- Watertight bulkheads: These bulkheads are water tight and prevent flooding.
- Non-watertight bulkheads:
- On-tight or tank bulkheads: Form boundary of oil tanks.
What is a bulkhead in a vessel?
marine. 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.
What are the 3 types of bulkhead?
To summarize we separated them into three major categories, each with its sub-categories.
- By position.
- Transverse.
- Longitudinal.
- By purpose.
- Watertight.
- Non-watertight.
- Collision.
- Insulation.
What is watertight bulkhead?
Watertight bulkheads are vertically designed watertight divisions/walls within the ship’s structure to avoid ingress of water in the compartment if the adjacent compartment is flooded due to damage in ship’s hull.
What is hopper tank in ship?
Hopper tanks are used for storage of water ballast. The hopper tank section is stiffened by a heavy web as shown above. The topside corner is also provided with a sloping bulkhead, and space is used for either storing another type of cargo or for storage of water ballast. These tanks are called upper wing tanks.
Why is it called bulkhead?
Etymology. The word bulki meant “cargo” in Old Norse. Sometime in the 15th century sailors and builders in Europe realized that walls within a vessel would prevent cargo from shifting during passage. So walls installed abeam (side-to-side) in a vessel’s hull were called “bulkheads”.
What is bulkhead in construction?
A bulkhead is a section of ceiling that has been dropped and boxed-in or enclosed. It’s not uncommon to have bulkheads in your kitchen, bathroom or basement. Bulkheads are typically used to conceal something. It could be plumbing pipes, electrical wires, duct work, or exhaust fans.
What is Class C bulkhead?
Class-C Panel: Class C bulkheads and decks are constructed of materials that are approved by SOLAS and classification societies as incombustible, but they are not required to meet any requirements related to rise in temperature or passage of smoke and flame to the unaffected side.
What is class a60 bulkhead?
Insulated using non-combustible material so that average temperature on un-exposed side does not rise above 139oC and point temperature above 180o The time duration for which the bulkhead complies with this , governs its class. A-60— 60 Min.
What is laden and ballast?
Laden/ballast ratio – A comparison of the time the vessel spends employed compared with the time spent without a cargo, which is sometimes used as a management tool to assess performance.
https://www.youtube.com/watch?v=1tK5ZbkhrXA