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Paul Séjourné (21 December 1851; Orléans – 19 January 1939; Paris) was a French engineer who specialized in the construction of large bridges from masonry, a domain in which he made some important innovations.〔〔 ==Biography== Paul Séjourné graduated from the ''École polytechnique'' in 1873 and the civil engineering grande école ''École nationale des Ponts et Chaussées'' (ENPC) in 1876, he was appointed ''Ingénieur des ponts et chaussées'' in Mende in 1877, then in Toulouse in 1890. In these two positions, Séjourné was responsible for the planning and construction of several railway lines. He made his reputation with innovative methods, and 1886 was decorated with the Légion d'honneur, with the citation 'has designed and built on several railway lines in planning or under construction long span bridges which should be considered as a basis for design'. Between 1890 and 1893, Séjourné took time off from public service to work for the Fives-Lille company in Spain. In 1896 he left the civil service and joined the Chemins de fer de Paris à Lyon et à la Méditerranée (PLM) as chief engineer based in Dijon, all the while continuing to lead other important projects such as the Adolphe Bridge in Luxembourg.〔 He became chief of the construction department of the PLM in 1909. In 1916, Marshal Lyautey named him director of the Moroccan railways. He then returned to the PLM as vice-director in 1919 before retiring at 76 with the title of honorary director. Between 1901 and 1922, Séjourné taught the construction of large masonry bridges at the ENPC and published a 6 volume manual ''Grandes Voûtes'' ('Great Arches) which brought together all his knowledge on the subject. After winning the Caméré prize in 1918, he was elected to the French Academy of Sciences in 1924.〔 In 1926 he was promoted to 'grand officer of the Légion d'honneur'.〔 A street of the 6th arrondissement of Paris where Paul Séjourné once lived is named in his honor.〔 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「Paul Séjourné」の詳細全文を読む スポンサード リンク
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