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- Jaroslav Josef Polívka (20. dubna 1886 Praha – 9. února 1960 Berkeley, USA) byl český stavební inženýr, který v letech 1946 až 1959 spolupracoval s americkým architektem Frankem Lloydem Wrightem. (cs)
- Jaroslav Josef Polivka (20 April 1886 – 9 February 1960), Czech structural engineer who collaborated with Frank Lloyd Wright between 1946 and 1959. Jaroslav Josef Polivka a.k.a. J. J. Polivka Civil Engineer was born in Prague in 1886. He received his undergraduate degree in structural engineering at the College of Technology in Prague in 1909. He then studied at the Federal Polytechnic Institute in Zurich, Switzerland and at the Prague Institute of Technology, where he earned a doctoral degree in 1917. After serving in First World War, he opened his own architectural and engineering office in Prague and developed his skills in stress analysis of reinforced concrete, pre-stressed reinforced concrete and steel structures. Polivka became an expert in photo-elastic stress analysis, a technique that examines small-scale transparent models in polarized light. In Prague Polivka worked together with avant-garde Czech architect on the Habich Building (1927–28) and Chicago Building (1927–28). Polivka designed the structural frame of the Czech Pavilion at the Paris International Exhibition of 1937 collaborating with renown Czech architect, Jaromír Krejcar and Czech engineer René Wiesner. Two years later, he worked with Czech architect to design another Czech Pavilion at the 1939 New York World's Fair. In 1939 Polivka immigrated to the United States and took a position as research associate and lecturer at the University of California, Berkeley. In 1941, he and Victor di Suvero co-invented a structural design technique that received a patent for improvements in structures. Polivka with his son Milos translated into English Eduardo Torroja’s ‘Philosophy of Structures’ book published in 1958. In 1946 Polivka began to work with Frank Lloyd Wright collaborating on several major projects until Wright's death in 1959. For Wright's projects Polivka performed stress analyses and investigations of specific building materials. They worked on a total of seven projects, two of which were built: the Johnson Wax Research Tower, 1946–1951 at Racine Wisconsin and the Guggenheim Museum, 1946–1959 in New York City for which Polivka managed to design out the gallery ramp perimeter columns initially required. Their other well-known design proposal was the reinforced concrete Butterfly Bridge (proposed at a world record span of 1000-ft )at the Southern Crossing of the San Francisco Bay (1949–52). Polivka performed the photoelasticity for the Podolsko Bridge is an arch bridge that spans the Vltava between Podolsko and Temešvár in Písek District, Czech Republic. At the time of its completion in 1943, it was the longest arch bridge in Czechoslovakia. He died in Berkeley, California. (en)
- Jaroslav Josef Polivka (20 avril 1886 – 9 février 1960) est un ingénieur en structure tchèque qui a collaboré avec Frank Lloyd Wright entre 1946 et 1959. Jaroslav Josef Polivka alias J. J. Polivka est ingénieur civil qui est né à Prague en 1886. Il a obtenu son diplôme de premier cycle en ingénierie des structures au Collège de technologie de Prague en 1909. Il a ensuite étudié à l’Institut polytechnique fédéral de Zurich, en Suisse, et à l’Institut de technologie de Prague, où il a obtenu un doctorat en 1917. Après avoir servi comme soldat pendant la Première Guerre mondiale, il a ouvert son propre bureau d’architecture et d’ingénierie à Prague et a développé ses compétences dans l’analyse des contraintes du béton armé, du béton armé précontraint et des structures en acier. Polivka a conçu la charpente structurelle du pavillon tchèque à l’Exposition internationale de Paris de 1937 en collaboration avec le célèbre architecte tchèque Jaromír Krejcar et l’ingénieur tchèque René Wiesner. Deux ans plus tard, il travaille avec l’architecte tchèque Kamil Roškot pour concevoir un autre pavillon tchèque à l’Exposition universelle de New York de 1939. En 1939, Polivka a émigré aux États-Unis et a pris un poste d’associé de recherche et de conférencier à l’université de Californie, Berkeley. (fr)
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- Jaroslav Josef Polívka (20. dubna 1886 Praha – 9. února 1960 Berkeley, USA) byl český stavební inženýr, který v letech 1946 až 1959 spolupracoval s americkým architektem Frankem Lloydem Wrightem. (cs)
- Jaroslav Josef Polivka (20 April 1886 – 9 February 1960), Czech structural engineer who collaborated with Frank Lloyd Wright between 1946 and 1959. Jaroslav Josef Polivka a.k.a. J. J. Polivka Civil Engineer was born in Prague in 1886. He received his undergraduate degree in structural engineering at the College of Technology in Prague in 1909. He then studied at the Federal Polytechnic Institute in Zurich, Switzerland and at the Prague Institute of Technology, where he earned a doctoral degree in 1917. After serving in First World War, he opened his own architectural and engineering office in Prague and developed his skills in stress analysis of reinforced concrete, pre-stressed reinforced concrete and steel structures. Polivka became an expert in photo-elastic stress analysis, a technique (en)
- Jaroslav Josef Polivka (20 avril 1886 – 9 février 1960) est un ingénieur en structure tchèque qui a collaboré avec Frank Lloyd Wright entre 1946 et 1959. Jaroslav Josef Polivka alias J. J. Polivka est ingénieur civil qui est né à Prague en 1886. Il a obtenu son diplôme de premier cycle en ingénierie des structures au Collège de technologie de Prague en 1909. Il a ensuite étudié à l’Institut polytechnique fédéral de Zurich, en Suisse, et à l’Institut de technologie de Prague, où il a obtenu un doctorat en 1917. Après avoir servi comme soldat pendant la Première Guerre mondiale, il a ouvert son propre bureau d’architecture et d’ingénierie à Prague et a développé ses compétences dans l’analyse des contraintes du béton armé, du béton armé précontraint et des structures en acier. (fr)
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- Jaroslav Josef Polívka (cs)
- Jaroslav Josef Polívka (fr)
- Jaroslav Josef Polívka (en)
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