The purity of function in the form of a Midwestern grain silo.
Back in old pre-Modern days of formal architecture,
function was often forced to follow form. The form of a building was
predetermined (think of the symmetry of Georgian mansions, Greco-Roman
structures, Renaissance buildings); function had to find a way to fit form. Inspired in part by midwestern grain silos (Loos and Corbusier were
enamored with them), proto-Modernists began experimenting with form
deferring to function. This allowed for articulation of surfaces: instead of a
flat plane on a building surface, volumes protruded and receded from the plane
as internal needs were met.
The forced symmetry of a Georgian mansion.
It was Louis Sullivan in the 1880s who famously uttered “form
ever follows function” as part of his practice in Chicago (the modern
permutation drops the “ever” for the mantra “form follows function”). It simply
means that the bones of a building, in other words, its volumes, reflect what
the building is used for rather than trying to force-fit a function into an
arbitrary form.
Louis Sullivan. Even his beard
was asymmetrical.
For example, some architectural dogma requires symmetry in a
building’s design: the right half needs to look like a mirror image of the left
half regardless of the enclosed functions in either half. Modernism has no such
requirement (and arguably demands asymmetry). Whatever volumes a structure needs
to accomplish its purpose (considering function, lot, zoning, and budget
restrictions) is the shape structure takes.
1926, Walter Gropius, haus at the Bauhaus.
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