3.Structure type The structure is completely made of laminated steel beams connected by ribbons.It consists in 4 steel pillars,which support all the load,and three sets of X-braces and minor diagonal beams, which its only work is to avoid bending of the columns.The structure has two belt truss,which are used as support beams of the cafeteria in the middle of the tower,and the restaurant and cable car station on the top.3. Structure type The structure is completely made of laminated steel beams connected by ribbons. It consists in 4 steel pillars, which support all the load, and three sets of X-braces and minor diagonal beams, which its only work is to avoid bending of the columns. The structure has two belt truss, which are used as support beams of the cafeteria in the middle of the tower, and the restaurant and cable car station on the top