文章基本信息

标题：Comparison of the Experimentally Obtained Dynamic Characteristics of a Bridge with Ambiental and Forced Vibrations
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作者：Constantin Gavriloaia ; Raluca Onofrei ; Nicolae Ţăranu 等
期刊名称：Bulletin of the Polytechnic Institute of Jassy, Constructions, Architechture Section
印刷版ISSN：1224-3884
电子版ISSN：2068-4762
出版年度：2015
卷号：LXV
期号：4
页码：115-124
出版社：Gheorghe Asachi Technical University of Jassy
摘要：The paper presents a study case performed on a bridge over the Danube, located in Cernavoda, Romania. The tested structure was subjected to several vibrations, resulted from the natural movement of the bridge and from the movement of a truck, a train and an excavator. The monitoring system used to record the in situ data was composed of four seismic transducers positioned in the first span of the bridge. The speed integration and vibration modes identification was performed using ARTeMIS Extractor. Emphasis is placed on analysing the mode shapes and observing the relation between frequency and modal coordinates.
关键词：dynamic characteristics; frequency; vibration modes; FDD; MAC.