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1.悬索桥的起源大家都知道,悬索桥的前身是吊桥,它的故乡在中国,距离今天至少有3000年的历史。在远古时期,热带原始人利用森林中的藤、竹、树茎制成吊式桥以渡河溪,使用的吊索有竖直的,斜向的,或者两者混合的。这种利用吊索来支撑建造的简易的吊式桥,都是早期悬索桥的雏形。直到现在,这些吊式桥仍在对世界吊桥形式的发展起着重要的作用。远在中国公元前250年,蜀地太守李冰在四川都江堰上用竹子修
1. The origin of the suspension bridge We all know that the suspension bridge was the predecessor of the suspension bridge, and its hometown in China, at least 3,000 years ago today. In ancient times, tropical primitives made hanging bridges with rattan, bamboo and tree stems in the forest to cross the river, using slings that were vertical, oblique, or a mixture of the two. This use of slings to support the construction of the simple hanging bridge, are the prototype of the early suspension bridge. Until now, these hanging bridges are still playing an important role in the development of the world’s suspension bridge. As far back as 250 BC in China, Li Bing, a prefect of Shu, used bamboo to repair it on Dujiangyan in Sichuan Province