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到过上海的人,一定知道横跨在黄浦江上的南浦大桥。这是一座斜拉桥,它和南京长江大桥不同,因为它没有数量众多的桥墩,只矗立着两个大塔架和从塔架上斜向拉结在钢筋混凝土桥面板上的许多根钢拉索。斜向拉索有三种布置方式。1.扇形方式,即把荷载(拉索的上端)分布在塔架的顶端附近。2.竖琴方式,即拉索互相平行,把荷载沿着塔架的高度分布,这就减小了塔架的压屈效
People who have been to Shanghai must know the Nanpu Bridge across the Huangpu River. This is a cable-stayed bridge, which differs from the Nanjing Yangtze River Bridge in that it does not have a large number of piers, only two large towers and many steel cables pulled diagonally from the tower on the RC bridge deck . Diagonal cable has three layouts. 1. Fan-shaped way, that is, the load (the upper end of the cable) is distributed near the top of the tower. 2. Harp way, that is, the cables are parallel to each other and distribute the load along the height of the tower, which reduces the buckling effect of the tower