2014考研p作文范文:世界上最长的吊桥_跨考网
The longest suspension bridge in the world 世界上最长的吊桥
Verrazano, an Italian about whom little is known, sailed into New York Harbour in 1524 and named it Angouleme. He described it as 'a very agreeable situation located within two small hills in the midst of which flowed a great river.' Though Verrazano is by no means considered to be a great explorer, his name will probably remain immortal, for on November 21st, 1964, the longest suspension bridge in the world was named after him.
The Verrazano Bridge, which was designed by Othmar Ammann, joins Brooklyn to Staten Island. It has a span of 4,260 feet. The bridge is so long that the shape of the earth had to be taken into account by its designer. Two great towers support four huge cables. The towers are built on immense underwater platforms made of steel and concrete. The platforms extend to a depth of over 100 feet under the sea. These alone took sixteen months to build. Above the surface of the water, the towers rise to a height of nearly 700 feet. They support the cables from which the bridge has been suspended. Each of the four cables contains 26,108 lengths of wire. It has been estimated that if the bridge were packed with cars, it would still only be carrying a third of its total capacity. However, size and strength are not the only important things about this bridge. Despite its immensity, it is both simple and elegant, fulfilling its designer's dream to create 'an enormous object drawn as faintly as possible'.
1524q_(d)一位鲜Zh知的意大利hl拉萨诺驾船驶进U约港,q将该港名ؓ(f)安古拉姆。他对该港作了这L(fng)描述Q“地理位|十分适宜Q位于两座小q中间Q一条大河从中间过”。虽然维拉萨诺绝对算不上一个伟大的探险Ӟ但他的名字将芳百世Q因?964q?1?1日徏成的一座世界上最长的吊桥是以他的名字命名?/p>
l拉萨诺大桥由奥斯马.阿曼设计Q连l着布鲁克林与斯塔顿岛,桥长4,260英尺。由于桥w太长,设计者不得不考虑了地表的形状。两座巨塔支撑着4根粗大的钢缆。塔w徏在巨大的水下钢盘混凝土^C。^台深入v?00英尺。仅q两座塔p?6个月才徏成。塔w高出水面将q?00英尺。高塔支撑着钢缆Q而钢~又(zhn)吊着大桥Q?栚w~中的每根由26Q?08股钢l组成。据估计Q若桥上摆满了汽车,也只不过是桥的L载力?/3。然而,q桥重要特点不仅是它的规模与强度。尽此桥很大,但它的结构简单,造型优美Q实C设计者企囑ֈ造一个“尽量用l线条勾d一个庞然大物”的梦想?/p>
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