一群人几乎摧毁了50周年的金门大桥

您不会相信，但是一群人几乎摧毁了50周年的金门大桥。第50届工程壮举的庆祝活动于24日举行^Th1987年5月。一群人聚集在桥上，比桥的原始设计负载重50％。

这座桥在早上关闭交通，只向行人开放。出人意料的是，出现的人群远远超出了预期的观众。这座桥有一个传统的拱门，该拱门在中心达到顶峰。但是，在那天，峰值变平，由于重量，中心下降了7英尺。电缆伸展，随后将塔向内拉。事实证明，保险杠汽车的重量不如肩膀到肩膀的人群那么多。

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看似可怕的故事实际上并不是那么严峻。实际上，根据大多数工程师的说法，发生崩溃的实际危险很小。为什么？因为我n前一年，从跨度中消除了大量的重量，结果，人群的实际重量不高于设计负载，而是14％以下。桥梁甚至将安全系数与设计负荷结合在一起，以防止由于设计加载时的风阵风而导致崩溃。

在这种情况下的实际危险是恐慌。如此狭窄的逃生路线这么大的人群是一场潜在的灾难，等待发生。值得庆幸的是，人群没有注意到桥梁的扁平化，人群中只有非常有限的人实际上注意到了效果。

Another amazing fact that you all probably don’t know about the Golden Gate Bridge is that one of the engineers was tasked with solving 33 algebraic equations that involved 6-36 variables each for ensuring that the bridge can withstand any storm that might hit the Pacific. For those of you, who don’t get the picture, solving for this many variables means that you’ll have to solve the equation in over 5,000 ways.

一项非常惊人的工程壮举，不是吗？