Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures - EUROSTRUCT 2021 |
| Herausgeber/-innen | Carlo Pellegrino, Flora Faleschini, Mariano Angelo Zanini, José C. Matos, Joan R. Casas, Alfred Strauss |
| Herausgeber (Verlag) | Springer Science and Business Media Deutschland GmbH |
| Seiten | 1207-1215 |
| Seitenumfang | 9 |
| ISBN (Print) | 9783030918767 |
| Publikationsstatus | Veröffentlicht - 2022 |
| Extern publiziert | Ja |
| Veranstaltung | 1st Conference of the European Association on Quality Control of Bridges and Structures, EUROSTRUCT 2021 - Padua, Italien Dauer: 29 Aug. 2021 → 1 Sept. 2021 |
Publikationsreihe
| Name | Lecture Notes in Civil Engineering |
|---|---|
| Band | 200 LNCE |
| ISSN (Print) | 2366-2557 |
| ISSN (elektronisch) | 2366-2565 |
Abstract
This study aims to investigate the effect of the vertical component of earthquake excitation on the seismic safety of bridges. Two types of three-dimensional bridges, including an ordinary beam bridge, and a suspension bridge, are modelled, and their seismic performance is evaluated under a set of seismic records. Particular emphasis is placed on near-fault pulse-type ground motions including not only the horizontal component but also the vertical component that is particularly critical for this kind of records. The axial load and bending moment are the critical response indicators checked to assess the design safety requirements of the bridges. In the numerical analysis, bridges are considered to be safe only if the moment induced by the ground motion is lower than the corresponding bending resistance. For the considered bridges and for the given set of near-fault pulse-type ground motions including the vertical component, fragility curves are constructed to show the probability of exceeding the limit state threshold representative of the safety of the bridges. The peak ground velocity is considered to be the intensity measure for developing the fragility curves. A critical comparison of fragility curves accounting for and neglecting the vertical component of the seismic excitation is illustrated. It is observed that the probability of crossing the limit state condition is significantly affected by the consideration of the vertical component. In particular, this effect is much higher in ordinary beam bridges. The analyses highlight that the seismic vulnerability of bridges is increased by the vertical component of the excitation, which requires further investigation to develop novel technological solutions and appropriate structural control strategies.
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- Tief- und Ingenieurbau
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Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures - EUROSTRUCT 2021. Hrsg. / Carlo Pellegrino; Flora Faleschini; Mariano Angelo Zanini; José C. Matos; Joan R. Casas; Alfred Strauss. Springer Science and Business Media Deutschland GmbH, 2022. S. 1207-1215 (Lecture Notes in Civil Engineering; Band 200 LNCE).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Are Bridges Safe Under Near-Fault Pulse-Type Ground Motions Considering the Vertical Component?
AU - Jami, Matin
AU - Elias, Said
AU - Rupakhety, Rajesh
AU - De Domenico, Dario
AU - Falsone, Giovanni
AU - Ricciardi, Giuseppe
N1 - Publisher Copyright: © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2022
Y1 - 2022
N2 - This study aims to investigate the effect of the vertical component of earthquake excitation on the seismic safety of bridges. Two types of three-dimensional bridges, including an ordinary beam bridge, and a suspension bridge, are modelled, and their seismic performance is evaluated under a set of seismic records. Particular emphasis is placed on near-fault pulse-type ground motions including not only the horizontal component but also the vertical component that is particularly critical for this kind of records. The axial load and bending moment are the critical response indicators checked to assess the design safety requirements of the bridges. In the numerical analysis, bridges are considered to be safe only if the moment induced by the ground motion is lower than the corresponding bending resistance. For the considered bridges and for the given set of near-fault pulse-type ground motions including the vertical component, fragility curves are constructed to show the probability of exceeding the limit state threshold representative of the safety of the bridges. The peak ground velocity is considered to be the intensity measure for developing the fragility curves. A critical comparison of fragility curves accounting for and neglecting the vertical component of the seismic excitation is illustrated. It is observed that the probability of crossing the limit state condition is significantly affected by the consideration of the vertical component. In particular, this effect is much higher in ordinary beam bridges. The analyses highlight that the seismic vulnerability of bridges is increased by the vertical component of the excitation, which requires further investigation to develop novel technological solutions and appropriate structural control strategies.
AB - This study aims to investigate the effect of the vertical component of earthquake excitation on the seismic safety of bridges. Two types of three-dimensional bridges, including an ordinary beam bridge, and a suspension bridge, are modelled, and their seismic performance is evaluated under a set of seismic records. Particular emphasis is placed on near-fault pulse-type ground motions including not only the horizontal component but also the vertical component that is particularly critical for this kind of records. The axial load and bending moment are the critical response indicators checked to assess the design safety requirements of the bridges. In the numerical analysis, bridges are considered to be safe only if the moment induced by the ground motion is lower than the corresponding bending resistance. For the considered bridges and for the given set of near-fault pulse-type ground motions including the vertical component, fragility curves are constructed to show the probability of exceeding the limit state threshold representative of the safety of the bridges. The peak ground velocity is considered to be the intensity measure for developing the fragility curves. A critical comparison of fragility curves accounting for and neglecting the vertical component of the seismic excitation is illustrated. It is observed that the probability of crossing the limit state condition is significantly affected by the consideration of the vertical component. In particular, this effect is much higher in ordinary beam bridges. The analyses highlight that the seismic vulnerability of bridges is increased by the vertical component of the excitation, which requires further investigation to develop novel technological solutions and appropriate structural control strategies.
KW - Beam bridge
KW - Bridges
KW - Earthquake engineering
KW - Near-fault pulse-type ground motions
KW - Suspension Bridge
KW - Vertical component
UR - http://www.scopus.com/inward/record.url?scp=85121916560&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-91877-4_137
DO - 10.1007/978-3-030-91877-4_137
M3 - Conference contribution
AN - SCOPUS:85121916560
SN - 9783030918767
T3 - Lecture Notes in Civil Engineering
SP - 1207
EP - 1215
BT - Proceedings of the 1st Conference of the European Association on Quality Control of Bridges and Structures - EUROSTRUCT 2021
A2 - Pellegrino, Carlo
A2 - Faleschini, Flora
A2 - Zanini, Mariano Angelo
A2 - Matos, José C.
A2 - Casas, Joan R.
A2 - Strauss, Alfred
PB - Springer Science and Business Media Deutschland GmbH
T2 - 1st Conference of the European Association on Quality Control of Bridges and Structures, EUROSTRUCT 2021
Y2 - 29 August 2021 through 1 September 2021
ER -