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John Buck Leonard (1864 - 1945) was a pioneering bridge engineer and architect, early advocate for reinforced concrete, working mainly in northern California. == Life == Leonard was born in Union City, Michigan and educated at Michigan State and the University of Michigan before going west in 1888. After brief periods in San Diego and Los Angeles, he settled in San Francisco. From 1889 he was employed there doing iron and steel engineering for various firms, including the Southern Pacific Railroad. Leonard opened his own consulting civil engineering office in 1904. Even in the aftermath of the 1906 San Francisco earthquake, resistance to fireproof reinforced concrete was strong. Leonard's analyses of concrete's superior performance in the earthquake and fire, especially Ernest L. Ransome's two buildings at Stanford University, and a constant stream of his articles and editorials in ''Architect and Engineer of California'', changed the city's ordinances and gained national attention. As of 1913 Leonard was in partnership with William Peyton Day. Together they produced the pamphlet ''The Concrete Bridge'', showing examples and analyses of Leonard's work. In 1916 Day left to form the noted San Francisco firm of Weeks & Day. Leonard would engineer about 20 buildings in post-1906 San Francisco, become increasing involved in building inspection, and ultimately design about 45 bridges in California. 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「John B. Leonard」の詳細全文を読む スポンサード リンク
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