Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Experimental Vibration Analysis for Civil Engineering Structures |
| Untertitel | EVACES 2023 |
| Herausgeber/-innen | Maria Pina Limongelli, Pier Francesco Giordano, Carmelo Gentile, Said Quqa, Alfredo Cigada |
| Herausgeber (Verlag) | Springer Science and Business Media Deutschland GmbH |
| Seiten | 71-79 |
| Seitenumfang | 9 |
| ISBN (elektronisch) | 978-3-031-39109-5 |
| ISBN (Print) | 9783031391088 |
| Publikationsstatus | Veröffentlicht - 2023 |
| Veranstaltung | Experimental Vibration Analysis for Civil Engineering Structures 2023: EVACES - Milan, Italien Dauer: 30 Aug. 2023 → 1 Sept. 2023 |
Publikationsreihe
| Name | Lecture Notes in Civil Engineering |
|---|---|
| Band | 432 LNCE |
| ISSN (Print) | 2366-2557 |
| ISSN (elektronisch) | 2366-2565 |
Abstract
Transmissibility-based operational modal analysis (TOMA) can be used to determine the modal parameters under different excitations, where no assumptions about the nature of the excitations are required. Classical OMA methods are based on the assumption that the excitation is white noise. However, this cannot always be satisfied. Ground vibrations caused by rail, road traffic or construction site operations represent various excitations for the building. These excitations can also contain harmonic components. By using TOMA, the restriction to white noise can be abandoned. Furthermore, the application of TOMA from ground excitation has not been properly addressed yet. This study is performed using experimental data from a 2-story timber structure resting on a concrete slab under laboratory conditions. Ground excitation is applied using a vibration test system on the slab. The identification focuses on the first floor, where frequency, damping, and mode shapes are identified. Several aspects are examined, such as the influence of the number of sensors as well as the level and type of excitation. Moreover, TOMA is compared to the poly-reference least squares frequency domain estimator (p-LSCF) method. The results show the potential of TOMA for the monitoring of buildings even when only subjected to small ground excitation or with few numbers of sensors.
ASJC Scopus Sachgebiete
- Ingenieurwesen (insg.)
- Tief- und Ingenieurbau
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Experimental Vibration Analysis for Civil Engineering Structures : EVACES 2023 . Hrsg. / Maria Pina Limongelli; Pier Francesco Giordano; Carmelo Gentile; Said Quqa; Alfredo Cigada. Springer Science and Business Media Deutschland GmbH, 2023. S. 71-79 (Lecture Notes in Civil Engineering; Band 432 LNCE).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Investigation of Transmissibility-Based Operational Modal Analysis from Ground Excitation
AU - Bonilla, David
AU - Grießmann, Tanja
AU - Rolfes, Raimund
PY - 2023
Y1 - 2023
N2 - Transmissibility-based operational modal analysis (TOMA) can be used to determine the modal parameters under different excitations, where no assumptions about the nature of the excitations are required. Classical OMA methods are based on the assumption that the excitation is white noise. However, this cannot always be satisfied. Ground vibrations caused by rail, road traffic or construction site operations represent various excitations for the building. These excitations can also contain harmonic components. By using TOMA, the restriction to white noise can be abandoned. Furthermore, the application of TOMA from ground excitation has not been properly addressed yet. This study is performed using experimental data from a 2-story timber structure resting on a concrete slab under laboratory conditions. Ground excitation is applied using a vibration test system on the slab. The identification focuses on the first floor, where frequency, damping, and mode shapes are identified. Several aspects are examined, such as the influence of the number of sensors as well as the level and type of excitation. Moreover, TOMA is compared to the poly-reference least squares frequency domain estimator (p-LSCF) method. The results show the potential of TOMA for the monitoring of buildings even when only subjected to small ground excitation or with few numbers of sensors.
AB - Transmissibility-based operational modal analysis (TOMA) can be used to determine the modal parameters under different excitations, where no assumptions about the nature of the excitations are required. Classical OMA methods are based on the assumption that the excitation is white noise. However, this cannot always be satisfied. Ground vibrations caused by rail, road traffic or construction site operations represent various excitations for the building. These excitations can also contain harmonic components. By using TOMA, the restriction to white noise can be abandoned. Furthermore, the application of TOMA from ground excitation has not been properly addressed yet. This study is performed using experimental data from a 2-story timber structure resting on a concrete slab under laboratory conditions. Ground excitation is applied using a vibration test system on the slab. The identification focuses on the first floor, where frequency, damping, and mode shapes are identified. Several aspects are examined, such as the influence of the number of sensors as well as the level and type of excitation. Moreover, TOMA is compared to the poly-reference least squares frequency domain estimator (p-LSCF) method. The results show the potential of TOMA for the monitoring of buildings even when only subjected to small ground excitation or with few numbers of sensors.
KW - Building
KW - Ground excitation
KW - OMA
KW - Transmissibility
UR - http://www.scopus.com/inward/record.url?scp=85172200823&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-39109-5_8
DO - 10.1007/978-3-031-39109-5_8
M3 - Conference contribution
AN - SCOPUS:85172200823
SN - 9783031391088
T3 - Lecture Notes in Civil Engineering
SP - 71
EP - 79
BT - Experimental Vibration Analysis for Civil Engineering Structures
A2 - Limongelli, Maria Pina
A2 - Giordano, Pier Francesco
A2 - Gentile, Carmelo
A2 - Quqa, Said
A2 - Cigada, Alfredo
PB - Springer Science and Business Media Deutschland GmbH
T2 - Experimental Vibration Analysis for Civil Engineering Structures 2023
Y2 - 30 August 2023 through 1 September 2023
ER -