Use of Different Profile Types

Profiles may be generates as shell profiles, stiffeners, flanges and pillars. There are certain restrictions as to the combination of component and profile type.

• Flanges (face plates) must always be flat bars (profile type 10)

• Shell profiles and stiffeners may be any of the profile types 10 -55.

• Pillars are normally those of the profile types 50 -74

Thus some types may be used both as stiffeners and pillars. However, their reference point, that means, the point in the profile section used to specify their position, may vary when used as a stiffener compared to when used as a pillar. When used as stiffeners the reference point is always located on one side of the web of the profile as indicated by the bold cross for some profile types in the figure below. The line between the two crosses is in the mould plane of the stiffener.

Figure 2:1. Reference point and mould plane for profiles used as Stiffeners

The position of the reference point for some profile types used for pillars are illustrated in relation with the specification of the pillar statement in Hull Planar Modelling, Design Language of Hull Modelling, Pillar Statement.