To provide a structure member having a load support ability which can give a visual discontinuity, namely a designing float feeling to an obsever.

A solid unit 10 is constituted by connecting two triangle frameworks, arranging the prescribed corners 15, 25 of respective framework to both ends so as to separate, spreading the pulling materials between respective corners of both frameworks, arranging plural solid units in nearly linerly, connecting with the corners 15, 25 of respective ends and spreading the pulling materials 18 between the prescribed corners 16a, 16b, 26a, 26b of adjacent solid units.