Eduardo Torroja y Miret, (1899–1961) was a Spanish structural engineer and architect, pioneer in the design of concrete-shell structures.
His first large project was the Tempul cable-stayed aqueduct in 1926, Guadalete, Jerez de la Frontera, in which he used prestressed girders, and he made his name with the concrete shell-roof at the Algeciras Market Hall (1933). Eduardo Torroja designed thin-shell water tower in Fedala and the roof of hippodrome "Zarzuela" in the form of hyperboloid of revolution. He also used steel with great élan, as at the roof of the Football Stadium, Barcelona (1943).
He designed innovative structures in numerous parts of the world, including Morocco and Latin America. His books include Philosophy of Structures (1958) and The Structures of Eduardo Torroja (1958).
Torroja believed that a structure should follow the personality of its designer. Some believe every specific twist and turn in a structure reflects an important event in one’s life. Believing in the latter, Torroja developed new ways of looking at structures as well as ways to increase the strength of the structures without dimming aesthetics. Torroja illustrated an interest in forms of art that dwindled within most of his structures which often incorporated his visions.