...The driving force behind this was JA Rebling, who built a 246m-span suspension bridge over Niagara Falls in 1854, and the Brooklyn Bridge (487m span) in New York, which he and his son WA Rebling worked on, was completed in 1883. In the 20th century, record-breaking suspension bridges were built one after another in the United States, and in 1931, the George Washington Bridge, with a span of over 1km, was finally erected over the Hudson River in New York, and in 1937, the Golden Gate Bridge (1280m span), which held the throne for the next quarter century, was built. Since the dramatic accident caused by the wind on the Tacoma Narrows Bridge in the same United States in 1940, it had become common practice to use truss structures for stiffening girders, but an innovative design that broke this rule was proposed in 1966 in the UK by the Severn Bridge (a bridge over the Severn River near Bristol). From [Bridge]…In the United States, the Brooklyn Bridge (487m long, suspension bridge) was built in New York in 1883, and was the product of the efforts of the father and son, Rebling. The Forth and Brooklyn Bridges marked the beginning of the long span construction that followed in the 20th century. The American suspension bridges were in a golden age, breaking records one after another, and in 1931 the George Washington Bridge, with a span of over 1km, was completed, and in 1937 the Golden Gate Bridge (1280m long), which held the title of world's longest bridge for a quarter of a century, was completed. The Quebec Bridge (cantilever truss type, 548m long), which had the longest span in the world for a long time, was built in Canada in 1917, and the Bayonne Bridge (504m long, USA) and the Sydney Harbour Bridge (503m long, Australia) were built in 1931 and the following year, respectively, as steel arch bridges. … *Some of the terminology that refers to the "George Washington Bridge" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…その牽引力となったのはJ.A.レーブリングで,彼は1854年,支間246mの鉄道・道路併用つり橋をナイアガラ滝に架け,息子のW.A.レーブリングとともに心血を注いだニューヨークのブルックリン橋(支間487m)は83年に完成した。20世紀に入って,アメリカでは続々と記録破りのつり橋が誕生し,1931年にはついに1kmを超える支間をもつジョージ・ワシントン橋The George Washington Bridgeがニューヨークのハドソン川に架設され,37年には以後四半世紀にわたって王座を占めたゴールデン・ゲート橋(支間1280m)が作られた。40年同じアメリカでタコマ・ナローズ橋が風による劇的な事故を起こして以来,補剛桁はトラス構造とするのが常道となっていたが,これを打破する革新的な設計が66年イギリスのセバーン橋Severn Bridge(ブリストルの近く,セバーン川に架かる。… 【橋】より…一方,アメリカでは,83年レーブリング父子の精魂を込めたニューヨークのブルックリン橋Brooklyn Bridge(つり橋,支間487m)が誕生したが,このフォース,ブルックリン両橋はその後20世紀にかけての長大支間化への幕あけとなった橋である。とくにアメリカのつり橋はまさに黄金時代を迎え,次々と記録を更新して,1931年にはついに1kmを超す支間のジョージ・ワシントン橋George Washington Bridgeが,37年には以後四半世紀にわたり世界一の座を保ったゴールデン・ゲート橋(支間1280m)が完成した。またつり橋以外の橋のなかで長い間世界最長支間を誇ったケベック橋Quebec Bridge(カンチレバー・トラス形式,548m)が1917年カナダに,鋼アーチでは31年にベイオウン橋Bayonne Bridge(アメリカ,504m)が,翌年にはシドニー・ハーバー橋Sydney Harbour Bridge(オーストラリア,503m)が建設された。… ※「George Washington Bridge」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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