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Zeiss / Dywidag shell for planetarium No 1 built at Jena. 1922 Walter Bauersfeld, Carl zeiss,Jena and Franz Dischinger, Dywidag The shell was finished with sprayed concrete Dischinger did a doctor thesis on the theory of polygonal shells in 1929 Concrete Shells, Ian Liddell, Buro Happold
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Engineer Franz Dischinger, 1/5th model of a market shell for Dresden constructed by Dywidag 1931. 7.3m square, 15mm thick at the crown, 25mm at the edges Concrete Shells, Ian Liddell, Buro Happold
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Brynmawr rubber factory 1950, Arup and Jenkins Concrete Shells, Ian Liddell, Buro Happold
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Smithfield poultry market. Model tests to establish buckling load. Shell thickness was 1/4 inches. Buckling load was found to be 190 lbs/sq.ft at full size.
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Hatfield pool ©1963 Hatfield Swimming Pool 1965
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Cooling Towers at Didcot 120m high by 100 feet diameter Concrete Shells, Ian Liddell, Buro Happold
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ST21 Stuttgart’;s new train station Ingenhoven, Otto, Leonhardt & Andrae, Buro Happold. Concrete Shells, Ian Liddell, Buro Happold
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ST21 Stuttgart’;s new train station Ingenhoven, Otto, Leonhardt & Andrae, Buro Happold. Concrete Shells, Ian Liddell, Buro Happold
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