Robert Maillart (February 6, 1872 - April 5, 1940) was a Swiss civil engineer who revolutionized reinforced concrete with such designs as the three-hinged arch, the deck-stiffened arch, and the mushroom slab. Wikipedia
The definitive Wikipedia entry for Robert Maillart. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Robert_Maillart