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David Barnard Steinman (June 11, 1886〔most probable date〕 – August 21, 1960) was an American structural engineer. He was the designer of the Mackinac Bridge and many other notable bridges, and a published author. He grew up in New York City's lower Manhattan, and lived with the ambition of making his mark on the Brooklyn Bridge that he lived under. In 1906 he earned a bachelor's degree from City College and in 1909, a Master of Arts from Columbia University and a Doctorate in 1911. He was awarded the Franklin Institute's Louis E. Levy Medal in 1957.〔(【引用サイトリンク】title=Franklin Laureate Database - Louis E. Levy Medal Laureates )〕 David B. Steinman built bridges in the United States, Thailand, England, Portugal, Italy, Brazil, Haiti, Puerto Rico, Canada, Korea, Iraq and Pakistan . He had a literary bent, and was a published author with several books, articles in advancement of his craft, and even had children's books and poetry to his credit. ==Early life== Steinman was the child of Jewish immigrants. Little is known of his family and early childhood other than that he had 6 siblings. There is some controversy about where and when he was born. Some sources〔For example, his (biography ) at Structurae〕 have him born in Khomsk, Brest, Belarus in 1886, and emigrating to the United States with his family in 1890. However other sources, including Ratigan,〔Ratigan, W. (1959). "Highways Over Broad Waters." Grand Rapids: Wm. B. Eerdmans Publishing. ASIN B0007IY0OC, page 11; "a boy born under the shadow of the Brooklyn Bridge"〕 and Steinman himself〔The back flap biography of Steinman's children's book, "Famous Bridges of the World" also references NYC〕 have him born in New York in 1887. Steinman grew up in New York City, New York, and was raised in the shadows of the Brooklyn Bridge. The Williamsburg Bridge was constructed as he grew up. The late Nineteenth and early Twentieth centuries were a time of significant bridge construction in the area, and he later said this is where he got his first interest in bridges. Because his family had little money, he worked to put himself through both the City College of New York, graduating Summa Cum Laude in 1906 and then Columbia University, where he completed three additional degrees culminating in a PhD in Civil Engineering. His PhD thesis was on a steel truss arch design for the Henry Hudson Bridge. While he was attending Columbia he did fellowships as well as taught nighttime classes at the City College and Stuyvesant Evening High School. He accepted a teaching position at the University of Idaho in Moscow, Idaho (1910–1914) but longed to return to New York. 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「David B. Steinman」の詳細全文を読む スポンサード リンク
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