赵西法119
金门大桥（英文：Golden Gate Bridge），峙于美国加利福尼亚州旧金山金门海峡之上，是世界著名的桥梁之一，也是近代桥梁工程的一项奇迹。
桥身全长1900多米的，历时4年，利用10万多吨钢材，由桥梁工程师约瑟夫·斯特劳斯（Joseph .Struss, 1870—1938年）设计。因其历史价值，英、美两国于2007年合拍同名纪录片。
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金门大桥是1937年开通的，全长约2.7千米，是世界上最大的单孔吊桥之一，被视为旧金山的象征。在淘金热的时候，这座桥如同是通往金矿的一扇大门，因此被命名为“金门大桥”。金门桥在桥梁建筑学上也是一个创举。
它只有两大支柱，因此它不是利用桥墩支撑桥身，而是利用桥两侧的弧形吊带产生的巨大拉力，把沉重的桥身高高吊起。金门桥的设计者是工程师史特劳斯。人们把他的铜像安放在桥畔，用以纪念他对美国做出的贡献。
如今，金门大桥是世界上无数桥梁中最繁忙的桥梁之一，每天都约有10万辆汽车从桥上驶过。
小小追风者
金门大桥是世界著名大桥之一，被誉为近代桥梁工程的一项奇迹。它座落于美国加利福尼亚州的金门海峡之上。大桥两端各有一座高1124英尺的钢塔，钢塔高出水面的部分为746英尺，相当于70层楼高；两座钢塔间悬挂着两条直径为36.5英寸的钢索，大桥就是凭借着两条钢索高悬半空。钢塔间的大桥跨度为4200英尺，是世界大桥中少见的最长跨度之一。桥孔高200英尺，大型船只也能畅行无阻。大桥还向两端延伸出去，使整个大桥全长达到6500英尺，为此又修建了两座辅助钢塔，使大桥更加雄伟壮观。金门大桥被认为是旧金山的象征。Golden Gate Bridge is one of the world-famous bridge, a bridge project as a modern miracle. It is located in California, on the Golden Gate Strait. The bridge at either end of a 1124 feet high steel tower, steel tower above the water surface of 746 feet for some, which is equivalent to 70-story building; two steel tower between the two hanging with a diameter of 36.5 inches of steel cables, the bridge is With two steel cables hanging mid-air. Steel tower between the bridge span to 4200 feet, is one of the world's longest bridge span in one of the rare. Bridge opening 200 feet high, large ships can pass unimpeded. Also be extended at both ends of the bridge to go out, the entire bridge to reach a total length of 6500 feet, and end the construction of the two auxiliary steel towers, the bridge so that the more magnificent. Golden Gate Bridge is considered a symbol of San Francisco.
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Golden Gate Bridge The orange towers of the Golden Gate Bridge-probably the most beautiful,certainly the most photographed bridge in the world-are visible from almost every point of elevation in San Francisco.The only cleft in Northern California's 600-mile continental wall,for years this mile-wide strait was considered unbridgeable.As much an architectural as an engineering feat,the Golden Gate took only 52 months to design and build,and was opened in 1937.Designed by Joseph Strauss,it was the first really massive suspension bridge,with a span of 4200ft,and until 1959 ranked as the world's longest.It connects the city at its northwesterly point on the peninsula to Marin County and Northern California,rendering the hitherto essential ferry crossing redundant,and was designed to withstand winds of up to a hundred miles an hour and to swing as much as 27ft.
