Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method
Selecting ground motions based on the generalized intensity measure distribution (GIMD) approach has many appealing features, but it has not been fully verified in engineering practice. In this paper, several suites of ground motions, which have almost identical distributions of spectral acceleratio...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Online Access: | https://hdl.handle.net/10356/141503 |
| _version_ | 1826128644768006144 |
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| author | Du, Wenqi Wang, Gang |
| author2 | Institute of Catastrophe Risk Management (ICRM) |
| author_facet | Institute of Catastrophe Risk Management (ICRM) Du, Wenqi Wang, Gang |
| author_sort | Du, Wenqi |
| collection | NTU |
| description | Selecting ground motions based on the generalized intensity measure distribution (GIMD) approach has many appealing features, but it has not been fully verified in engineering practice. In this paper, several suites of ground motions, which have almost identical distributions of spectral acceleration (SA) ordinates but different distributions of non-SA intensity measures, are selected using the GIMD-based approach for a given earthquake scenario. The selected ground motion suites are used to compute the sliding displacements of various slopes. Comparisons of the resulting displacements demonstrate that selecting ground motions with biased distribution of some intensity measures (ie, Arias intensity) may yield systematic biases (up to 60% for some slope types). Therefore, compared to the ground motions selected based only on the distribution of SA ordinates, the ground motion suite selected by the GIMD-based approach can better represent the various characteristics of earthquake loadings, resulting in generally unbiased estimation in specific engineering applications. |
| first_indexed | 2024-10-01T07:28:19Z |
| format | Journal Article |
| id | ntu-10356/141503 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:28:19Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1415032020-06-09T01:52:41Z Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method Du, Wenqi Wang, Gang Institute of Catastrophe Risk Management (ICRM) Science::Geology::Volcanoes and earthquakes Engineering Application Generalized Intensity Measure Distribution Selecting ground motions based on the generalized intensity measure distribution (GIMD) approach has many appealing features, but it has not been fully verified in engineering practice. In this paper, several suites of ground motions, which have almost identical distributions of spectral acceleration (SA) ordinates but different distributions of non-SA intensity measures, are selected using the GIMD-based approach for a given earthquake scenario. The selected ground motion suites are used to compute the sliding displacements of various slopes. Comparisons of the resulting displacements demonstrate that selecting ground motions with biased distribution of some intensity measures (ie, Arias intensity) may yield systematic biases (up to 60% for some slope types). Therefore, compared to the ground motions selected based only on the distribution of SA ordinates, the ground motion suite selected by the GIMD-based approach can better represent the various characteristics of earthquake loadings, resulting in generally unbiased estimation in specific engineering applications. 2020-06-09T01:52:41Z 2020-06-09T01:52:41Z 2018 Journal Article Du, W., & Wang, G. (2018). Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method. Earthquake Engineering and Structural Dynamics, 47(5), 1352-1359. doi:10.1002/eqe.2998 0098-8847 https://hdl.handle.net/10356/141503 10.1002/eqe.2998 2-s2.0-85044425989 5 47 1352 1359 en Earthquake Engineering and Structural Dynamics © 2017 John Wiley & Sons, Ltd. All rights reserved. |
| spellingShingle | Science::Geology::Volcanoes and earthquakes Engineering Application Generalized Intensity Measure Distribution Du, Wenqi Wang, Gang Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| title | Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| title_full | Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| title_fullStr | Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| title_full_unstemmed | Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| title_short | Ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| title_sort | ground motion selection for seismic slope displacement analysis using a generalized intensity measure distribution method |
| topic | Science::Geology::Volcanoes and earthquakes Engineering Application Generalized Intensity Measure Distribution |
| url | https://hdl.handle.net/10356/141503 |
| work_keys_str_mv | AT duwenqi groundmotionselectionforseismicslopedisplacementanalysisusingageneralizedintensitymeasuredistributionmethod AT wanggang groundmotionselectionforseismicslopedisplacementanalysisusingageneralizedintensitymeasuredistributionmethod |