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In the 1940s, a "Second Chicago School" emerged from the work of Ludwig Mies van der Rohe and his efforts of education at the Illinois Institute of Technology in Chicago. inizia ad imparare
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. Its first and purest expression was the 860-880 Lake Shore Drive Apartments (1951) and their technological achievements. inizia ad imparare
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This was supported and enlarged in the 1960s due to the ideas of structural engineer Fazlur Khan inizia ad imparare
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He introduced a new structural system of framed tubes in skyscraper design and construction. inizia ad imparare
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The engineer Fazlur Khan defined the framed tube structure as "a three dimensional space structure composed of three, four, or possibly more frames, braced frames, or shear walls inizia ad imparare
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Closely spaced interconnected exterior columns form the tube inizia ad imparare
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Kolumny połączone blisko siebie tworzą rurkę zewnętrzne
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Horizontal loads, for example wind, are supported by the structure as a whole. inizia ad imparare
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Obciążenia poziome, na przykład wiatr, są podpierane przez strukturę w całości.
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About half the exterior surface is available for windows. inizia ad imparare
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Framed tubes allow fewer interior columns, and so create more usable floor space. inizia ad imparare
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Rury oprawione/ system rur
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Where larger openings like garage doors are required, the tube frame must be interrupted, with transfer girders used to maintain structural integrity. inizia ad imparare
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The first building to apply the tube-frame construction was the DeWitt-Chestnut Apartment Building which Khan designed and was completed in Chicago by 1963 inizia ad imparare
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This laid the foundations for the tube structures of many other later skyscrapers, inizia ad imparare
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Today, there are different styles of architecture all throughout the city, such as the Chicago School, neo-classical, art deco, modern, and postmodern inizia ad imparare
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Obecnie istnieją różne style architektury całym mieście, takich jak szkoły chicagowskiej, neoklasycystycznym, art deco, nowoczesny i postmodernizmu
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Form follows function is a principle associated with modernist architecture and industrial design in the 20th century. inizia ad imparare
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The principle is that the shape of a building or object should be primarily based upon its intended function or purpose. inizia ad imparare
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opiera się przede wszystkim na
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