AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Load combination uls in midas civil8/9/2023 ![]() ![]() ![]() ![]() Because if any of the natural frequency are identical to the frequency due to dynamic forces applied to the structure, there is a risk of resonance which may lead to unacceptable vibration or even loss of stability. The second key point is to pay attention to the vibration. The vibration from normal pedestrian traffic should not cause discomfort to users so that is why the code specifies a limit defined as an acceleration limit. ![]() Dynamic effects of walking pedestrians can be represented by a periodic force and this force will have a typical frequency of between one and three hertz. In the horizontal direction, the effects of walking pedestrians would have a frequency between 0.5 and 1.5 hertz. And if there’s a group of joggers crossing a bridge, that may induce forces with a frequency about three hertz so we can see that this range say from 0.5 to 3 hertz would be a critical spectrum. #Load combination uls in midas civil how to#Īnd if any of the natural frequencies of the structure is within this spectrum there is a risk of issues related to the vibration or stability so specific models and detail criteria how to fulfill it and how to achieve that the structure is stable. #Load combination uls in midas civil how to#. ![]()
0 Comments
Read More
Leave a Reply. |