不好意思再次打断一下,麻烦请先向大家科普下你创造的又一个新名词:“实验型桥梁”
Tacoma大桥用来实验什么黑科技?这就是一个为了节省成本导致抗风能力不足而垮塌的工程悲剧而已,到你这咋“坏事变好事”了?成了帮助人类进步的良心桥了
说实在的,知道啥时候该虎头蛇尾的掩面退场,也还是比厚着脸皮继续装逼硬拗强的
笑了,awander在12楼就已经给了答案。眼瞎么?
这是任何一个力学课本都会探究共振但好像没人说是简单的成本问题。你的栽赃能力在五毛中是佼佼者。
连一个财务都可以从encarta中学到tacoma大桥的倒塌是桥梁史上一个重大的意义,帮助美国在二战后进一步规范设计和工程学研究。连encarta和wiki都没谈及是因为偷工减料,而本来就是设计时就没有了解到的物理现象。设计者本身就是金门大桥的设计者。你来胡说八道?你哪个老师教出来的?不羞愧么?
再装?
The bridge's collapse had a lasting effect on science and engineering. In many
physics textbooks, the event is presented as an example of elementary forced
resonance, with the wind providing an external periodic frequency that matched the bridge's natural structural frequency, though many believe the actual cause of failure was
aeroelastic flutter.
[1] Its failure also boosted research in the field of bridge aerodynamics-aeroelastics, the study of which has influenced the designs of all the world's great long-span bridges built since 1940.