What are hull plates on a ship?

What are hull plates on a ship?

A ship’s hull is basically made up of bent plates welded together. If these plates are not stiffened, the bending moments on the plates due to the loads may exceed the value of stress that can be withstood by the material, and hence cause failure.

What is plate stem in ship?

marine. The bow frame forming the apex of the intersection of the forward sides of a ship. At its lower end it is rigidly connected to the keel. It and may be a heavy flat bar or of rounded plate construction.

What is Stringer plate?

Definition of stringer plate : one of the plates forming the outer strake of a ship’s deck and being usually heavier than those used for the rest of the deck.

What are the two types of frames fitted onboard ship?

4.2. Types of construction

• Transverse framing. Transverse framing is used primarily for ships less than 120 metres in length.
• Longitudinal framing. Longitudinal framing is mandatory for very large ships, oil tankers and bulk-ore carriers.
• Mixed framing. Mixed framing combines longitudinal and transverse framing.

What part of a boat is the stem?

The stem is the most forward part of a boat or ship’s bow and is an extension of the keel itself. It is often found on wooden boats or ships, but not exclusively.

Which tank is inboard of a longitudinal bulkhead?

Centre tank
– Centre tank – Any tank inboard of a longitudinal bulkhead. – Slop tank – A tank specifically designated for the collection of tank drainings, tank washings and other oily mixtures.

What is ship Stringer?

1. A term applied to a fore-and-aft girder running along the side of a ship at the shell and also to the outboard strake of plating on any deck. 2. The side pieces of a ladder or staircase to which the treads and risers are fastened.

What is bilge strake?

The strake at the turn of bilge extending outward to a point where the side rises vertically.

How are side bilges laid on a ship?

In the older ships where there are side bilges the bottoms tier should be athwartship to enable the water to flow towards the side bilges. The second tier should be laid perpendicular to the bottom tier.

Where are the bilge joints located on a boat?

The lower ends of the side frames are simply butted onto the outermost bottom longitudinals at the turn of the bilge. This part of the hull structure is inherently rigid and external pressures do not place excessive load on these joints.

Where is the tank side bracket on a ship?

Tank Side Bracket – An interconnecting plate found between the margin plate and the frames. Its function is to strengthen the connection at the turn of the bilge in way of the double bottom construction. Tank Tops – Tank tops are the covering deck plates over the double bottom structure and are found at the bottom of the ship’s holds.

Why are solid floor plates used on ships?

They act in way of the ship’s frames in the double bottom structure of the vessel and interconnect the ‘intercostal’ and ‘longitudinal’ members. Solid plate floors have lightening holes cut in and these serve to reduce the overall weight of the ship (and subsequent tonnage dues) as well as providing access for tank inspection personnel.