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Postmodern architecture began as an international style the first examples of which are generally cited as being from the 1950s, but did not become a movement until the late 1970s〔http://jan.ucc.nau.edu/~twp/architecture/postmoderncom/〕 and continues to influence present-day architecture. Postmodernity in architecture is said to be heralded by the return of "wit, ornament and reference" to architecture in response to the formalism of the International Style of modernism. As with many cultural movements, some of Postmodernism's most pronounced and visible ideas can be seen in architecture. The functional and formalized shapes and spaces of the modernist style are replaced by diverse aesthetics: styles collide, form is adopted for its own sake, and new ways of viewing familiar styles and space abound. Perhaps most obviously, architects rediscovered past architectural ornament and forms which had been abstracted by the Modernist architects. Influential early large-scale examples of postmodern architecture are Michael Graves' Portland Building in Portland, Oregon and Philip Johnson's Sony Building (originally AT&T Building) in New York City, which borrows elements and references from the past and reintroduces color and symbolism to architecture. Postmodern architecture has also been described as neo-eclectic, where reference and ornament have returned to the facade, replacing the aggressively unornamented modern styles. This eclecticism is often combined with the use of non-orthogonal angles and unusual surfaces, most famously in the State Gallery of Stuttgart by James Stirling and the Piazza d'Italia by Charles Moore. The Scottish Parliament Building in Edinburgh has also been cited as being of postmodern vogue. Modernist architects may regard postmodern buildings as vulgar, associated with a populist ethic, and sharing the design elements of shopping malls, cluttered with "gew-gaws". Postmodern architects may regard many modern buildings as soulless and bland, overly simplistic and abstract. This contrast was exemplified in the juxtaposition of the "whites" against the "grays," in which the "whites" were seeking to continue (or revive) the modernist tradition of purism and clarity, while the "grays" were embracing a more multifaceted cultural vision, seen in Robert Venturi's statement rejecting the "black or white" world view of modernism in favor of "black and white and sometimes gray." The divergence in opinions comes down to a difference in goals: modernism is rooted in minimal and true use of material as well as absence of ornament, while postmodernism is a rejection of strict rules set by the early modernists and seeks meaning and expression in the use of building techniques, forms, and stylistic references. One building form that typifies the explorations of Postmodernism is the traditional gable roof, in place of the iconic flat roof of modernism. Shedding water away from the center of the building, such a roof form always served a functional purpose in climates with rain and snow, and was a logical way to achieve larger spans with shorter structural members, but it was nevertheless relatively rare in modern houses. (These were, after all, "machines for living," according to LeCorbusier, and machines did not usually have gabled roofs.) However, Postmodernism's own modernist roots appear in some of the noteworthy examples of "reclaimed" roofs. For instance, Robert Venturi's Vanna Venturi House breaks the gable in the middle, denying the functionality of the form, and Philip Johnson's 1001 Fifth Avenue building in Manhattan (not to be confused with Portland's Congress Center, once referred to by the same name) advertises a mansard roof form as an obviously flat, false front. Another alternative to the flat roofs of modernism would exaggerate a traditional roof to call even more attention to it, as when Kallmann McKinnell & Wood's American Academy of Arts and Sciences in Cambridge, Massachusetts, layers three tiers of low hipped roof forms one above another for an emphatic statement of shelter. == Relationship to previous styles == A new trend became evident in the last quarter of the 20th century as some architects started to turn away from modern Functionalism which they viewed as boring, and which some of the public considered unwelcoming and even unpleasant. These architects turned towards the past, quoting past aspects of various buildings and melding them together (even sometimes in an inharmonious manner) to create a new means of designing buildings. A vivid example of this new approach was that ''Postmodernism'' saw the comeback of columns and other elements of premodern designs, sometimes adapting classical Greek and Roman examples (but not simply recreating them, as was done in neoclassical architecture). In Modernism, the traditional column (as a design feature) was treated as a cylindrical pipe form, replaced by other technological means such as cantilevers, or masked completely by curtain wall façades. The revival of the column was an aesthetic, rather than a technological necessity. Modernist high-rise buildings had become in most instances monolithic, rejecting the concept of a stack of varied design elements for a single vocabulary from ground level to the top, in the most extreme cases even using a constant "footprint" (with no tapering or "wedding cake" design), with the building sometimes even suggesting the possibility of a single metallic extrusion directly from the ground, mostly by eliminating visual horizontal elements—this was seen most strictly in Minoru Yamasaki's World Trade Center buildings. Another return was that of the “wit, ornament and reference” seen in older buildings in terra cotta decorative façades and bronze or stainless steel embellishments of the Beaux-Arts and Art Deco periods. In Postmodern structures this was often achieved by placing contradictory quotes of previous building styles alongside each other, and even incorporating furniture stylistic references at a huge scale. Contextualism, a trend in thinking in the later parts of 20th century, influences the ideologies of the postmodern movement in general. Contextualism is centered on the belief that all knowledge is “context-sensitive”. This idea was even taken further to say that knowledge cannot be understood without considering its context. While noteworthy examples of modern architecture responded both subtly and directly to their physical context (analyzed by Thomas Schumacher in "Contextualism: Urban Ideals and Deformations," and by Colin Rowe and Fred Koetter in ''Collage City''), postmodern architecture often addressed the context in terms of the materials, forms and details of the buildings around it—the cultural context. The term "Contextualism" itself is an amalgamation of the words "context" and "texture".〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Postmodern architecture」の詳細全文を読む スポンサード リンク
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