3107F.5 Mooring and Berthing Components
Mooring components include bitts, bollards, cleats, pelican hooks, capstans, mooring dolphins and quick release hooks.
Berthing components include fender piles and fenders, which may be camels, fender panels or wales.
Applicable safety factors to be applied to the demand are provided in Section 3103F.10.
The following parameters shall be established in order to calculate component strength:
New and existing components:
- Yield and tensile strength of structural steel
- Structural steel modulus of elasticity
- Yield and tensile strength of bolts
- Concrete infill compressive strength
- Concrete infill modulus of elasticity
Additional parameters for existing components:
The maximum mooring line forces (demand) shall be established per Section 3105F. Multiple lines may be attached to the mooring component at varying horizontal and vertical angles. Mooring components shall therefore be checked for all the mooring analysis load cases. The maximum demand on breasting dolphins and fender piles shall be established according to Sections 3103F.6 and 3105F.
The structural and connection capacity of mooring components bolted to the deck shall be established in accordance with AISC 325 [7.10], ACI 318 [7.7], ANSI/AWC NDS [7.11], as appropriate. The mooring component capacity may be governed by the strength of the deck material. Therefore, a check of the deck capacity to withstand mooring component loads shall be performed.