VIBRATION TESTING AND FE MODELLING OF A LIVELY FOOTBRIDGE

被引：0
|
作者：
Lai, Eleonora [1 ]
Gentile, Carmelo [2 ]
Mulas, Maria Gabriella [1 ]
机构：
[1] Politecn Milan, DICA, Milan, Italy
[2] Politecn Milan, DABC, Milan, Italy
来源：
6TH IOMAC: INTERNATIONAL OPERATIONAL MODAL ANALYSIS CONFERENCE PROCEEDINGS | 2015年
关键词：
Suspension Footbridge; Operational Modal Analysis; FE modelling; Serviceability; SERVICEABILITY;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The paper focuses on the results of dynamic testing and numerical simulation of a suspension footbridge. The experimental part of the study involved both operational modal testing and measurement of the structural response under the crossing of the footbridge by different groups of pedestrians. The footbridge exhibited quite complex dynamic characteristics (i.e. closely spaced modes and 5 modes in the frequency range 2-3 Hz) and the maximum vertical accelerations induced by pedestrians and joggers turned out to be in the range of discomfort. The investigation was completed by the development of a numerical PE model (based on the design data), with the twofold objective of reproducing the observed dynamic characteristics and simulating the dynamic interaction pedestrians-structure.
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页码：557 / 566
页数：10
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