爱尔兰沃特福德理工学院论文代写：桥梁的毁坏

爱尔兰沃特福德理工学院论文代写：桥梁的毁坏

有许多情况下，桥梁失败和崩溃，因为多余的振动。这些振动是由自然或手动过程造成的。考虑到伦敦的千禧桥为例，它是人工和自然过程产生的抖动和破坏桥的组合。许多研究人员认为，人们更负责桥梁的破坏作为悬索桥的晃动是正常的事情从一开始的建设权，但人脚位置桥摇曳的同步增强快速吹着风的负面影响。人们不知道他们行动的后果，这是建设方的责任和上级部门确保桥梁足够稳定。

正如已经讨论过的，故障主要发生在桥上由于大量的人引起的横向激励。同样可以看作是一个伟大的教训和收集的信息可以用来构建一个更好和更强的桥梁。利用人群-结构相互作用模型，它可以很容易地描述整个现象的同步横向激励和一定的预防措施，可以利用和合并，以避免这种问题。关键的问题是群众增加了质量，改变了整个结构的动态特性，因此结构必须足够强大，以适应和吸收群众的群众。研究表明，摆动或千禧桥的破坏主要发生在小的力量，当桥上的人试图调整自己的脚来保持平衡。分析还澄清了大量群众对整个结构的影响。因此，在未来，将确保该结构是能够平衡自己在相同的情况下。

爱尔兰沃特福德理工学院论文代写：桥梁的毁坏

There have been many cases where the bridges fail and break down because of the excess vibrations. These vibrations are caused by either natural or manual processes. Considering the example of London’s Millennium Bridge, it was the combination of both the manual and natural processes that resulted into the wobbling and failure of bridge. Many of the researchers believe that the people were more responsible for the failure of bridge as the swaying of suspension bridge has been a normal thing right from the construction of the same has begun, but the synchronization of people foot positions with the swaying of bridge enhanced the negative impact of fast blowing wind. As people were unaware of the consequence of their moves, it was the responsibility of the constructers and the higher authorities to make sure that the bridge was stable enough.

As already discussed, the failure mainly happened because of the synchronous lateral excitation caused by a large number of people on the bridge. The same can be perceived as a great lesson and the information gathered can be utilized to construct a better and stronger bridge. Utilizing a crowd – structure interaction model, it is easy to describe the whole phenomenon of synchronous lateral excitation and certain precautions can be utilized and incorporated to avoid such kind of problems. The key problem was the crowd added mass that changed the dynamic properties of the whole structure, thus the structure must be made strong enough to  adapt and absorb the mass of a large crowd. The researches show that the wobbling or the failure of Millennium Bridge took place mainly because of the small forces that were developed when the people on the bridge tried to adjust their foot to keep balance. The analysis also cleared the fact that the mass of crowd swayed the whole structure. Thus, in future it will be ensured that the structure is capable of balancing itself in the same situation.