Transient response of bridge piers under eccentric impact of near-fault earthquake
Abstract To study the influence of near-fault earthquake on pier failure, establish a double-span continuous girder bridge. The seismic response of the bridge is calculated using the transient wave function expansion method and the indirect mode function superposition method. Solve the dynamic and d...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-21213-4 |
| _version_ | 1811226583040524288 |
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| author | Zihu Wang Qingyan Zeng Yantao Du Wenjun An |
| author_facet | Zihu Wang Qingyan Zeng Yantao Du Wenjun An |
| author_sort | Zihu Wang |
| collection | DOAJ |
| description | Abstract To study the influence of near-fault earthquake on pier failure, establish a double-span continuous girder bridge. The seismic response of the bridge is calculated using the transient wave function expansion method and the indirect mode function superposition method. Solve the dynamic and displacement responses, and the effect of the vertical separation of the bridge on the eccentric compression of the pier is analyzed. The results show that under the near-fault vertical seismic action, the separation can significantly change the horizontal deformation at the top of the pier, and neglecting the separation may underestimate the eccentric compression of the pier. Calculations for different pier heights and girder spans show that separation has a greater effect on the longitudinal deformation of the pier top. Therefore, the reasonable design of longitudinal limit device on pier top in the near-fault area is helpful to reduce the damage of eccentric bridge impact. |
| first_indexed | 2024-04-12T09:27:34Z |
| format | Article |
| id | doaj.art-0fd42f9591214cb7bdb9451b37d2c031 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T09:27:34Z |
| publishDate | 2022-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-0fd42f9591214cb7bdb9451b37d2c0312022-12-22T03:38:26ZengNature PortfolioScientific Reports2045-23222022-10-0112111410.1038/s41598-022-21213-4Transient response of bridge piers under eccentric impact of near-fault earthquakeZihu Wang0Qingyan Zeng1Yantao Du2Wenjun An3Modern Education Technology Center, Jiangxi University of EngineeringModern Education Technology Center, Jiangxi University of EngineeringModern Education Technology Center, Jiangxi University of EngineeringSchool of Civil Engineering, Jiangxi University of EngineeringAbstract To study the influence of near-fault earthquake on pier failure, establish a double-span continuous girder bridge. The seismic response of the bridge is calculated using the transient wave function expansion method and the indirect mode function superposition method. Solve the dynamic and displacement responses, and the effect of the vertical separation of the bridge on the eccentric compression of the pier is analyzed. The results show that under the near-fault vertical seismic action, the separation can significantly change the horizontal deformation at the top of the pier, and neglecting the separation may underestimate the eccentric compression of the pier. Calculations for different pier heights and girder spans show that separation has a greater effect on the longitudinal deformation of the pier top. Therefore, the reasonable design of longitudinal limit device on pier top in the near-fault area is helpful to reduce the damage of eccentric bridge impact.https://doi.org/10.1038/s41598-022-21213-4 |
| spellingShingle | Zihu Wang Qingyan Zeng Yantao Du Wenjun An Transient response of bridge piers under eccentric impact of near-fault earthquake Scientific Reports |
| title | Transient response of bridge piers under eccentric impact of near-fault earthquake |
| title_full | Transient response of bridge piers under eccentric impact of near-fault earthquake |
| title_fullStr | Transient response of bridge piers under eccentric impact of near-fault earthquake |
| title_full_unstemmed | Transient response of bridge piers under eccentric impact of near-fault earthquake |
| title_short | Transient response of bridge piers under eccentric impact of near-fault earthquake |
| title_sort | transient response of bridge piers under eccentric impact of near fault earthquake |
| url | https://doi.org/10.1038/s41598-022-21213-4 |
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