OUR 3 CORE PREMISES FOR FLOATING BREAKWATERS
All concrete pontoons will attenuate waves, but it is very important to distinguish between a floating breakwater and a concrete pontoon. Floating breakwaters and concrete pontoons differ significantly in all the three vital criteria: strength of reinforcement, strength of connectors and anchoring. A normal pontoon will mainly handle forces from direct loads and wind forces. A breakwater is designed to restrain the movement of the floating breakwater elements it is connected to.[show_more more=”Read more” less=”Close” color=”#748ec3″ align=”center” list=”+”]
When it does this the wave is efficiently attenuated and the energy from the wave is converted into motion energy of the breakwater. When wave energy exceeds the maximum of what the breakwater can absorb, the breakwater must be designed so that it allows for excess energy to pass through without damaging the breakwater. This, since survival mode design is of paramount importance when building floating breakwaters. It is no co-incidence that
SF Marina’s rugged floating breakwaters enjoy a worldwide recognition. This is important, since survival mode design is of paramount importance when building floating breakwaters. It is no coincidence that SF Marina’s rugged floating breakwaters enjoy worldwide recognition. Our whole concept of floating breakwaters is built on three premises:
- Strong reinforcement around the mooring-rings. Our mooring-rings are reinforced in such a manner that the entire breakwater can be lifted by a single ring.
- Our coupling system consisting of access wells with heavy steel plates, stainless steel cut-outs, coupling wires packed in anti-corrosive grease and heavy rubber cylinders. The coupling system is also so versatile that we can make use of centre couplings, to eliminate torsional loads on longer piers or sections used to build specific angle solutions.
- Our mooring technique which is based on an anchoring system using heavy chains and concrete anchors. The chain is coupled to the pontoon mooring-rings with shackles and a “bridle ring” as shown below. It is clear from the diagram below, when forces on the chain increase as the coupling gets pulled downwards under load, the total force at the “bridle ring” causes the pontoons to be pulled together, while still kept safely apart by the rubber cylinders. The more the wind blows, the more the pontoons get pulled together.