Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements

The paper provides an overview of ambient vibration tests and numerical analysis performed in the framework of Project NATO SfP 983828. The aim of the research is the definition of the dynamic characteristics of bridges on the examples. The paper considers three case studies: two older existing brid...

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Main Authors: Damir Zenunovic, Mirsad Topalovic, Radomir Folic
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2015/957841
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author Damir Zenunovic
Mirsad Topalovic
Radomir Folic
author_facet Damir Zenunovic
Mirsad Topalovic
Radomir Folic
author_sort Damir Zenunovic
collection DOAJ
description The paper provides an overview of ambient vibration tests and numerical analysis performed in the framework of Project NATO SfP 983828. The aim of the research is the definition of the dynamic characteristics of bridges on the examples. The paper considers three case studies: two older existing bridges and one newly constructed bridge. A comparative analysis of natural frequencies and mode shapes, obtained by ambient vibration measurements (AVM) and mathematical models (AMs), was carried with the aim to demonstrate the usefulness of ambient vibration tests for identification of the modal parameters of the tested bridge structure. Agreement between AVM and AMs results is very good. The mode shapes are very similar. Some differences between computed and measured frequencies were obtained, which can be attributed to the real nature of the boundary conditions, the uncertainty in the material properties of structure elements, and the mathematical models assumptions.
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series Shock and Vibration
spelling doaj-art-dc115b2a4dd4481da32dd7bed8ab29532025-08-20T03:23:57ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/957841957841Identification of Modal Parameters of Bridges Using Ambient Vibration MeasurementsDamir Zenunovic0Mirsad Topalovic1Radomir Folic2Faculty of Mining, Geology and Civil Engineering, University of Tuzla, Univerzitetska 2, 75000 Tuzla, Bosnia and HerzegovinaFaculty of Mining, Geology and Civil Engineering, University of Tuzla, Univerzitetska 2, 75000 Tuzla, Bosnia and HerzegovinaFaculty of Technical Sciences, University of Novi Sad, Trg D. Obradovica 6, 21000 Novi Sad, SerbiaThe paper provides an overview of ambient vibration tests and numerical analysis performed in the framework of Project NATO SfP 983828. The aim of the research is the definition of the dynamic characteristics of bridges on the examples. The paper considers three case studies: two older existing bridges and one newly constructed bridge. A comparative analysis of natural frequencies and mode shapes, obtained by ambient vibration measurements (AVM) and mathematical models (AMs), was carried with the aim to demonstrate the usefulness of ambient vibration tests for identification of the modal parameters of the tested bridge structure. Agreement between AVM and AMs results is very good. The mode shapes are very similar. Some differences between computed and measured frequencies were obtained, which can be attributed to the real nature of the boundary conditions, the uncertainty in the material properties of structure elements, and the mathematical models assumptions.http://dx.doi.org/10.1155/2015/957841
spellingShingle Damir Zenunovic
Mirsad Topalovic
Radomir Folic
Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements
Shock and Vibration
title Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements
title_full Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements
title_fullStr Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements
title_full_unstemmed Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements
title_short Identification of Modal Parameters of Bridges Using Ambient Vibration Measurements
title_sort identification of modal parameters of bridges using ambient vibration measurements
url http://dx.doi.org/10.1155/2015/957841
work_keys_str_mv AT damirzenunovic identificationofmodalparametersofbridgesusingambientvibrationmeasurements
AT mirsadtopalovic identificationofmodalparametersofbridgesusingambientvibrationmeasurements
AT radomirfolic identificationofmodalparametersofbridgesusingambientvibrationmeasurements