Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records
This paper focuses on the identification of high-efficiency intensity measures to predict the seismic response of buildings affected by near- and far-fault ground motion records. Near-fault ground motion has received special attention, as it tends to increase the expected damage to civil structures...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Geosciences |
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| Online Access: | https://www.mdpi.com/2076-3263/11/6/234 |
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| author | Yeudy F. Vargas-Alzate Jorge E. Hurtado |
| author_facet | Yeudy F. Vargas-Alzate Jorge E. Hurtado |
| author_sort | Yeudy F. Vargas-Alzate |
| collection | DOAJ |
| description | This paper focuses on the identification of high-efficiency intensity measures to predict the seismic response of buildings affected by near- and far-fault ground motion records. Near-fault ground motion has received special attention, as it tends to increase the expected damage to civil structures compared to that from ruptures originating further afield. In order to verify this tendency, the nonlinear dynamic response of 3D multi-degree-of-freedom models is estimated by using a subset of records whose distance to the epicenter is lower than 10 km. In addition, to quantify how much the expected demand may increase because of the proximity to the fault, another subset of records, whose distance to the epicenter is in the range between 10 and 30 km, has been analyzed. Then, spectral and energy-based intensity measures as well as those obtained from specific computations of the ground motion record are calculated and correlated to several engineering demand parameters. From these analyses, fragility curves are derived and compared for both subsets of records. It has been observed that the subset of records nearer to the fault tends to produce fragility functions with higher probabilities of exceedance than the ones derived for far-fault records. Results also show that the efficiency of the intensity measures is similar for both subsets of records, but it varies depending on the engineering demand parameter to be predicted. |
| first_indexed | 2024-03-10T10:53:03Z |
| format | Article |
| id | doaj.art-cf697b95e3994937ac6ac30bd2ea16dd |
| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-10T10:53:03Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Geosciences |
| spelling | doaj.art-cf697b95e3994937ac6ac30bd2ea16dd2023-11-21T22:07:01ZengMDPI AGGeosciences2076-32632021-05-0111623410.3390/geosciences11060234Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion RecordsYeudy F. Vargas-Alzate0Jorge E. Hurtado1Department of Civil and Environmental Engineering, Polytechnic University of Catalonia (UPC), Building D2, 08034 Barcelona, SpainDepartmento de Ingeniería Civil, Universidad Nacional de ColombiaThis paper focuses on the identification of high-efficiency intensity measures to predict the seismic response of buildings affected by near- and far-fault ground motion records. Near-fault ground motion has received special attention, as it tends to increase the expected damage to civil structures compared to that from ruptures originating further afield. In order to verify this tendency, the nonlinear dynamic response of 3D multi-degree-of-freedom models is estimated by using a subset of records whose distance to the epicenter is lower than 10 km. In addition, to quantify how much the expected demand may increase because of the proximity to the fault, another subset of records, whose distance to the epicenter is in the range between 10 and 30 km, has been analyzed. Then, spectral and energy-based intensity measures as well as those obtained from specific computations of the ground motion record are calculated and correlated to several engineering demand parameters. From these analyses, fragility curves are derived and compared for both subsets of records. It has been observed that the subset of records nearer to the fault tends to produce fragility functions with higher probabilities of exceedance than the ones derived for far-fault records. Results also show that the efficiency of the intensity measures is similar for both subsets of records, but it varies depending on the engineering demand parameter to be predicted.https://www.mdpi.com/2076-3263/11/6/234near-fault recordsfar-fault recordsintensity measuresengineering demand parametersnonlinear dynamic analysisuncertainties |
| spellingShingle | Yeudy F. Vargas-Alzate Jorge E. Hurtado Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records Geosciences near-fault records far-fault records intensity measures engineering demand parameters nonlinear dynamic analysis uncertainties |
| title | Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records |
| title_full | Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records |
| title_fullStr | Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records |
| title_full_unstemmed | Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records |
| title_short | Efficiency of Intensity Measures Considering Near- and Far-Fault Ground Motion Records |
| title_sort | efficiency of intensity measures considering near and far fault ground motion records |
| topic | near-fault records far-fault records intensity measures engineering demand parameters nonlinear dynamic analysis uncertainties |
| url | https://www.mdpi.com/2076-3263/11/6/234 |
| work_keys_str_mv | AT yeudyfvargasalzate efficiencyofintensitymeasuresconsideringnearandfarfaultgroundmotionrecords AT jorgeehurtado efficiencyofintensitymeasuresconsideringnearandfarfaultgroundmotionrecords |