A Collection of Architectural Review Materials

Sunday, October 26, 2014

Robert Maillart & the Mushroom Slab



(6 February 1872 – 5 April 1940) was a Swiss civil engineer who revolutionized the use of structural reinforced concrete with such designs as the three-hinged arch and the deck-stiffened arch for bridges, and the beamless floor slab and mushroom ceiling for industrial buildings. His completed Salginatobel (1929–1930) and Schwandbach (1933) bridges changed the aesthetics and engineering of bridge construction dramatically and influenced decades of architects and engineers after him. In 1991 the Salginatobel Bridge was declared an International Historic Civil Engineering Landmark by the American Society of Civil Engineers.





The Mushroom Slab



Maillart's first mushroom slab in the warehouse Giesshübel in Zurich (1910)












 Mushroom slab on the third floor of the Grain storage of the Swiss Confederation in Altdorf (1912)

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