Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge
Abstract Recent seismic events have unequivocally highlighted the susceptibility of fault-crossing bridges to the synergistic effects of ground surface vibrations on either side of the fault plane and the tectonic dislocations arising from fault-induced surface ruptures. This study delineates both s...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-54558-z |
| _version_ | 1797275015743275008 |
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| author | Hongyu Jia Wei Cheng Kang Jia Yikun Zhai Shixiong Zheng |
| author_facet | Hongyu Jia Wei Cheng Kang Jia Yikun Zhai Shixiong Zheng |
| author_sort | Hongyu Jia |
| collection | DOAJ |
| description | Abstract Recent seismic events have unequivocally highlighted the susceptibility of fault-crossing bridges to the synergistic effects of ground surface vibrations on either side of the fault plane and the tectonic dislocations arising from fault-induced surface ruptures. This study delineates both seismic and parametric response analyses of fault-crossing suspension bridges, employing a straightforward yet efficacious method for simulating desired ground motions near fault-rupture zones. Herein, we introduce a user-friendly method to incorporate predicted fault-induced displacements, accounting for both fling-step and directivity effects, into processed ground motion chronologies, enabling the generation of dip-slip fault ground motions. The accuracy and efficacy of the proposed method are affirmed by juxtaposing the generated ground motions with the observed ones (MGM). An exhaustive parametric analysis, addressing factors like fault-crossing location, fault-crossing angle, and frequency components of fault-crossing ground motions, of a suspension bridge over a rupture fault, is executed using the fashionable ANSYS software. This study provides clear and specific guidelines for the seismic design of suspension bridges traversing rupture faults. |
| first_indexed | 2024-03-07T15:08:17Z |
| format | Article |
| id | doaj.art-804bf527be7e49d5b62d7ccf90f83e48 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:08:17Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-804bf527be7e49d5b62d7ccf90f83e482024-03-05T18:49:35ZengNature PortfolioScientific Reports2045-23222024-02-0114112510.1038/s41598-024-54558-zReconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridgeHongyu Jia0Wei Cheng1Kang Jia2Yikun Zhai3Shixiong Zheng4School of Civil Engineering, Southwest Jiaotong UniversitySchool of Civil Engineering, Southwest Jiaotong UniversitySchool of Civil Engineering, Southwest Jiaotong UniversitySchool of Civil Engineering, Southwest Jiaotong UniversitySchool of Civil Engineering, Southwest Jiaotong UniversityAbstract Recent seismic events have unequivocally highlighted the susceptibility of fault-crossing bridges to the synergistic effects of ground surface vibrations on either side of the fault plane and the tectonic dislocations arising from fault-induced surface ruptures. This study delineates both seismic and parametric response analyses of fault-crossing suspension bridges, employing a straightforward yet efficacious method for simulating desired ground motions near fault-rupture zones. Herein, we introduce a user-friendly method to incorporate predicted fault-induced displacements, accounting for both fling-step and directivity effects, into processed ground motion chronologies, enabling the generation of dip-slip fault ground motions. The accuracy and efficacy of the proposed method are affirmed by juxtaposing the generated ground motions with the observed ones (MGM). An exhaustive parametric analysis, addressing factors like fault-crossing location, fault-crossing angle, and frequency components of fault-crossing ground motions, of a suspension bridge over a rupture fault, is executed using the fashionable ANSYS software. This study provides clear and specific guidelines for the seismic design of suspension bridges traversing rupture faults.https://doi.org/10.1038/s41598-024-54558-zDip-slip faultFling-step effectDirectivity effectFault-crossing suspension bridgeFault rupture permanent surface displacement |
| spellingShingle | Hongyu Jia Wei Cheng Kang Jia Yikun Zhai Shixiong Zheng Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge Scientific Reports Dip-slip fault Fling-step effect Directivity effect Fault-crossing suspension bridge Fault rupture permanent surface displacement |
| title | Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge |
| title_full | Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge |
| title_fullStr | Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge |
| title_full_unstemmed | Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge |
| title_short | Reconstruction and validation of ground motions across dip-slip faults: an application to response analysis of a long-span suspension bridge |
| title_sort | reconstruction and validation of ground motions across dip slip faults an application to response analysis of a long span suspension bridge |
| topic | Dip-slip fault Fling-step effect Directivity effect Fault-crossing suspension bridge Fault rupture permanent surface displacement |
| url | https://doi.org/10.1038/s41598-024-54558-z |
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