Abstract
Seismic fragility curves represent the seismic vulnerability of structures and are used to quickly evaluate structural damage in earthquakes. In this study, seismic fragility analyses for the sheet-pile wharves of Port of Hualien, Taiwan were performed. Representative earthquakes in Taiwan were scaled to various levels of peak ground acceleration (PGA)as the input motions. Nonlinear finite element analyses were performed using PLAXIS 2D for the seismic responses of sheet-pile wharves, and the modelling approach was verified to be satisfactory by simulating a 1-g scale-model shaking table test. According to the thresholds of the displacement of sheet-pile wall for different damage states, the conditional exceedance probabilities of each damage state at various PGA levels, namely, the fragility curves, were obtained. They were approximated by lognormal cumulative distribution function and were parameterized for rapid estimate of earthquake loss. Furthermore, the damage probabilities of the studied sheet-pile wharves during a ML 6.2 earthquake occurred in Hualien in 2018 were estimated using the parameterized fragility curves, and a realistic result was obtained.
| Original language | English |
|---|---|
| Pages (from-to) | 265-277 |
| Number of pages | 13 |
| Journal | Soil Dynamics and Earthquake Engineering |
| Volume | 123 |
| DOIs | |
| Publication status | Published - 2019 Aug 1 |
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All Science Journal Classification (ASJC) codes
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology
- Soil Science
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Deriving seismic fragility curves for sheet-pile wharves using finite element analysis. / Ko, Yung-Yen; Yang, Ho Hsiung.
In: Soil Dynamics and Earthquake Engineering, Vol. 123, 01.08.2019, p. 265-277.Research output: Contribution to journal › Article
TY - JOUR
T1 - Deriving seismic fragility curves for sheet-pile wharves using finite element analysis
AU - Ko, Yung-Yen
AU - Yang, Ho Hsiung
PY - 2019/8/1
Y1 - 2019/8/1
N2 - Seismic fragility curves represent the seismic vulnerability of structures and are used to quickly evaluate structural damage in earthquakes. In this study, seismic fragility analyses for the sheet-pile wharves of Port of Hualien, Taiwan were performed. Representative earthquakes in Taiwan were scaled to various levels of peak ground acceleration (PGA)as the input motions. Nonlinear finite element analyses were performed using PLAXIS 2D for the seismic responses of sheet-pile wharves, and the modelling approach was verified to be satisfactory by simulating a 1-g scale-model shaking table test. According to the thresholds of the displacement of sheet-pile wall for different damage states, the conditional exceedance probabilities of each damage state at various PGA levels, namely, the fragility curves, were obtained. They were approximated by lognormal cumulative distribution function and were parameterized for rapid estimate of earthquake loss. Furthermore, the damage probabilities of the studied sheet-pile wharves during a ML 6.2 earthquake occurred in Hualien in 2018 were estimated using the parameterized fragility curves, and a realistic result was obtained.
AB - Seismic fragility curves represent the seismic vulnerability of structures and are used to quickly evaluate structural damage in earthquakes. In this study, seismic fragility analyses for the sheet-pile wharves of Port of Hualien, Taiwan were performed. Representative earthquakes in Taiwan were scaled to various levels of peak ground acceleration (PGA)as the input motions. Nonlinear finite element analyses were performed using PLAXIS 2D for the seismic responses of sheet-pile wharves, and the modelling approach was verified to be satisfactory by simulating a 1-g scale-model shaking table test. According to the thresholds of the displacement of sheet-pile wall for different damage states, the conditional exceedance probabilities of each damage state at various PGA levels, namely, the fragility curves, were obtained. They were approximated by lognormal cumulative distribution function and were parameterized for rapid estimate of earthquake loss. Furthermore, the damage probabilities of the studied sheet-pile wharves during a ML 6.2 earthquake occurred in Hualien in 2018 were estimated using the parameterized fragility curves, and a realistic result was obtained.
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U2 - 10.1016/j.soildyn.2019.05.014
DO - 10.1016/j.soildyn.2019.05.014
M3 - Article
VL - 123
SP - 265
EP - 277
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
SN - 0267-7261
ER -