A walking crowd-structure interaction model

被引：0
|
作者：
Gao Y. [1 ]
Yang Q. [1 ]
机构：
[1] Beijing Municipal Key Laboratory of Structural Wind Engineering and Urban Wind Environment, School of Civil Engineering, Beijing Jiaotong University, Beijing
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2016年 / 35卷 / 23期
关键词：
Crowd-structure interaction; Modal characteristics; Numerical simulation; Structural response; Walking styles of crowd;
D O I：
10.13465/j.cnki.jvs.2016.23.024
中图分类号：
TU997 []; U44 [桥涵工程]; U24 [];
学科分类号：
0814 ; 081406 ;
摘要：
Each pedestrian was simplified as a lump mass and two spring-damper legs and a walking crowd-structure interaction (CSI) model was established using Lagrange's equations. First of all, the structural responses and dynamic characteristics of the crowd-structure system were studied. Secondly, the structural responses and the modal changes versus the number of people were analyzed. Finally, under two different walking styles including queue and side by side, different structural responses were compared. The simulation analysis showed that the changes of the structural response and modal features of the crow-structure system increase with increase in number of people; however, the walking style of queue with a more uniform crowd distribution can effectively reduce dynamic responses of the structure; in order to avoid resonance or excessive fluctuation, a narrow cross-section and longitudinal dredging facilities on a bridge deck are recommended for footbridge designs. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
收藏
页码：153 / 159
页数：6
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