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      저자 : Dong-Shuo Yin (검색결과 1 건)
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        Framework for Calculating the Vertical Human-Induced Vibration of the Suspension Footbridge Under the Random Pedestrian Flow

        Yu Li,Dong-Shuo Yin,Jia-Hao Wang,Jia-Wu Li 한국강구조학회 2022 International Journal of Steel Structures Vol.22 No.5

        Currently, the problem of human-induced vibration of suspension footbridges is a research hotspot in bridge engineering. Moreover, on the suspension footbridge deck, the walking parameters of pedestrians, the simulation of random pedestrian fl ow, and the calculation method of human-induced vibration are the keys to solving the above problem. Therefore, in this paper, the following three studies have been carried out: (1) Firstly, the Jiufengshan suspension footbridge was taken as the observation site, and the statistical values of the step frequency ( f ), step length ( l ), and walking velocity ( v ) of pedestrians on the suspension footbridge deck were investigated and obtained. (2) Secondly, by combining the “social force model” with the obtained f , l , and v , a Matlab program was compiled to simulate the random pedestrian fl ow on the suspension footbridge deck. (3) Finally, by combining the above program with the vertical vibration equations of the human–footbridge coupling system, a Matlab program was compiled to calculate the vertical human-induced vibration of the suspension footbridge deck, which then was used to study the infl uence of the random pedestrian fl ow and human–footbridge coupling eff ect on the vertical human-induced vibration of the suspension footbridge deck. So, the above studies can provide a meaningful reference for the design of suspension footbridges.

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