Arrangement of local structures for tlp-type floating offshore wind turbine platform stress distribution and strength enhancement

An arrangement of local structures for TLP-type floating offshore wind turbine platform stress distribution and strength enhancement, the arrangement comprising:

• a node providing a seat surface for a wind turbine through a top plate and having a first flat surface formed in any one direction, a second flat surface formed in another direction, and a third flat surface formed in another direction;
• and
• a plurality of pontoons generating buoyancy on the sea by being connected to the node and elongated in three directions by being connected to the first flat surface, the second flat surface, and the third flat surface of the node, respectively,
• wherein the node comprises a plurality of supporting members that protrudes upward from a bottom plate disposed at a predetermined distance under the top plate and of which at least one is elongated in a different direction, and the top plate is supported by the supporting members, so stress generated by load applied to the top plate by the wind turbine is distributed.