Porous-structure device for suppressing wave run-up and design method thereof

A porous-structure device for suppressing wave run-up, the porous-structure device comprising a marine platform consisting of four columns, two pontoons, four horizontal supports and a deck, wherein fillets on middle portions of the columns have a square section, and a radius of the fillets, close to the deck and the pontoons, of the columns is gradually decreased to 0;

• two sliding grooves are concavely and vertically formed in each of four sides of each of the columns, and connecting blocks are slidably arranged in the sliding grooves;
• a porous device is disposed outside each of the columns and is formed by combining and connecting four single components, and each of the single components is formed by combining and connecting a plurality of porous laminated plates and a plurality of connecting pieces;
• and
• a plurality of through holes penetrate through surfaces of the porous laminated plates, the plurality of porous laminated plates are arranged in parallel, 45° internal unfilled corners are formed at ends of two sides of each of the porous laminated plates, and the four single components are arrayed in a square shape to form the porous device and are disposed outside each of the columns.