In the shipbuilding industry, 'Superstructure' is a very common term. Generally, we refer to the cabins on the deck as superstructures, but what is the specific definition of this term? This chapter will provide a detailed introduction.
The superstructure of a ship refers to various enclosed buildings located above the deck. Strictly speaking, the distance from the outer wall of the enclosed building to the side panel of the ship's hull should not exceed 4% of the ship's width, the enclosed buildings which meet this condition can be called superstructures. Of course, this term is also used to refer to deck buildings, including deck houses.
According to the location of the superstructure, it can be divided into the bow tower, bridge tower, and stern tower. The deck of the superstructure has various names, such as the bow deck, stern deck, swimming deck, rescue deck, driving deck, compass deck, etc.
The superstructure consists of side walls, front end walls, rear end walls, internal walls, and decks. Their structure is very similar to the corresponding structure of the main hull, consisting of wall panels, deck panels and ribs (only installed on the side walls of the ship's hull), crossbeams or deck longitudinal bones, deck longitudinal trusses and wall stiffeners, etc. However, except for the strong superstructure, the thickness of the panels and the size of the skeleton are generally relatively small.

