Abstract
In this study, we carried out a conceptual design for member structures of a mooring buoy used at the ports of Nanboku-Daito Islands. A concept of the design is that a mooring buoy is hard to be affected by wave forces and easily exchanged even when damaged. As the result, we proposed a new type mooring buoy for simple maintenance. The proposed mooring buoy is a new type of an underwater float type mooring buoy. It uses multiple floating bodies (floats) held in water and two mooring ropes connected with a removable shackle. In consideration of maintenance, this mooring buoy is composed of some member structures that are easy to exchange when damaged. We confirmed that the proposed mooring buoy has sufficiently safe structural features against design wave forces by static equilibrium calculation.
