The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas
This article presents a statistical study on strength reduction factors for seismic-isolated bridges in far-fault areas. 1410 ground motions are selected and modified to be compatible with the recommended response spectra. Then, they are divided into 60 groups to investigate the effects of PGA/PGV r...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
Taylor & Francis Ltd.
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/59495 |
| _version_ | 1848760495493873664 |
|---|---|
| author | Wu, Y. Wang, H. Li, A. Sha, B. Bi, Kaiming |
| author_facet | Wu, Y. Wang, H. Li, A. Sha, B. Bi, Kaiming |
| author_sort | Wu, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This article presents a statistical study on strength reduction factors for seismic-isolated bridges in far-fault areas. 1410 ground motions are selected and modified to be compatible with the recommended response spectra. Then, they are divided into 60 groups to investigate the effects of PGA/PGV ratios, soil conditions and post-to-pre-yield stiffness ratio. Results show that reduction factors are significantly affected by the PGA/PGV ratio, while the latter two items are not as important as the first one. Finally, an improved equation to estimate the reduction factor is proposed, and the accuracy of the equation is verified by additional records. |
| first_indexed | 2025-11-14T10:16:41Z |
| format | Journal Article |
| id | curtin-20.500.11937-59495 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:16:41Z |
| publishDate | 2017 |
| publisher | Taylor & Francis Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-594952019-04-15T03:46:56Z The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas Wu, Y. Wang, H. Li, A. Sha, B. Bi, Kaiming This article presents a statistical study on strength reduction factors for seismic-isolated bridges in far-fault areas. 1410 ground motions are selected and modified to be compatible with the recommended response spectra. Then, they are divided into 60 groups to investigate the effects of PGA/PGV ratios, soil conditions and post-to-pre-yield stiffness ratio. Results show that reduction factors are significantly affected by the PGA/PGV ratio, while the latter two items are not as important as the first one. Finally, an improved equation to estimate the reduction factor is proposed, and the accuracy of the equation is verified by additional records. 2017 Journal Article http://hdl.handle.net/20.500.11937/59495 10.1080/13632469.2017.1326425 Taylor & Francis Ltd. restricted |
| spellingShingle | Wu, Y. Wang, H. Li, A. Sha, B. Bi, Kaiming The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas |
| title | The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas |
| title_full | The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas |
| title_fullStr | The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas |
| title_full_unstemmed | The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas |
| title_short | The Strength Reduction Factors for Seismic-Isolated Bridges Characterized by SDOF Bilinear Systems in Far-Fault Areas |
| title_sort | strength reduction factors for seismic-isolated bridges characterized by sdof bilinear systems in far-fault areas |
| url | http://hdl.handle.net/20.500.11937/59495 |