Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes
This study investigates the effects of earthquake types, magnitudes, and hysteretic behavior on the peak and residual ductility demands of inelastic single-degree-of-freedom systems and evaluates the effects of major aftershocks on the nonlinear structural responses. An extensive dataset of real mai...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2015-06-01
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| Series: | Frontiers in Built Environment |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fbuil.2015.00006/full |
| _version_ | 1819089946418348032 |
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| author | Katsuichiro eGoda Friedemann eWenzel Raffaele eDe Risi |
| author_facet | Katsuichiro eGoda Friedemann eWenzel Raffaele eDe Risi |
| author_sort | Katsuichiro eGoda |
| collection | DOAJ |
| description | This study investigates the effects of earthquake types, magnitudes, and hysteretic behavior on the peak and residual ductility demands of inelastic single-degree-of-freedom systems and evaluates the effects of major aftershocks on the nonlinear structural responses. An extensive dataset of real mainshock-aftershock sequences for Japanese earthquakes is developed. The constructed dataset is large, compared with previous datasets of similar kinds, and includes numerous sequences from the 2011 Tohoku earthquake, facilitating an investigation of spatial aspects of the aftershock effects. The empirical assessment of peak and residual ductility demands of numerous inelastic systems having different vibration periods, yield strengths, and hysteretic characteristics indicates that the increase in seismic demand measures due to aftershocks occurs rarely but can be significant. For a large mega-thrust subduction earthquake, a critical factor for major aftershock damage is the spatial occurrence process of aftershocks. |
| first_indexed | 2024-12-21T22:16:01Z |
| format | Article |
| id | doaj.art-3e7e60a8b20a4788a50797269ee3ae97 |
| institution | Directory Open Access Journal |
| issn | 2297-3362 |
| language | English |
| last_indexed | 2024-12-21T22:16:01Z |
| publishDate | 2015-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Built Environment |
| spelling | doaj.art-3e7e60a8b20a4788a50797269ee3ae972022-12-21T18:48:27ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622015-06-01110.3389/fbuil.2015.00006141487Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese EarthquakesKatsuichiro eGoda0Friedemann eWenzel1Raffaele eDe Risi2University of BristolKarlsruhe Institute of TechnologyUniversity of BristolThis study investigates the effects of earthquake types, magnitudes, and hysteretic behavior on the peak and residual ductility demands of inelastic single-degree-of-freedom systems and evaluates the effects of major aftershocks on the nonlinear structural responses. An extensive dataset of real mainshock-aftershock sequences for Japanese earthquakes is developed. The constructed dataset is large, compared with previous datasets of similar kinds, and includes numerous sequences from the 2011 Tohoku earthquake, facilitating an investigation of spatial aspects of the aftershock effects. The empirical assessment of peak and residual ductility demands of numerous inelastic systems having different vibration periods, yield strengths, and hysteretic characteristics indicates that the increase in seismic demand measures due to aftershocks occurs rarely but can be significant. For a large mega-thrust subduction earthquake, a critical factor for major aftershock damage is the spatial occurrence process of aftershocks.http://journal.frontiersin.org/Journal/10.3389/fbuil.2015.00006/full2011 Tohoku EarthquakePeak ductilityResidual ductilityJapanese earthquakesMainshock and aftershocks |
| spellingShingle | Katsuichiro eGoda Friedemann eWenzel Raffaele eDe Risi Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes Frontiers in Built Environment 2011 Tohoku Earthquake Peak ductility Residual ductility Japanese earthquakes Mainshock and aftershocks |
| title | Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes |
| title_full | Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes |
| title_fullStr | Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes |
| title_full_unstemmed | Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes |
| title_short | Empirical Assessment of Nonlinear Seismic Demand of Mainshock-Aftershock Ground Motion Sequences for Japanese Earthquakes |
| title_sort | empirical assessment of nonlinear seismic demand of mainshock aftershock ground motion sequences for japanese earthquakes |
| topic | 2011 Tohoku Earthquake Peak ductility Residual ductility Japanese earthquakes Mainshock and aftershocks |
| url | http://journal.frontiersin.org/Journal/10.3389/fbuil.2015.00006/full |
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