Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions
Isolated bridges are commonly designed in the near-fault region to balance excessive displacement and seismic force. Optimal intensity measures (IMs) of probabilistic seismic demand models for isolated bridges subjected to pulse-like ground motions are identified in this study. Four typical isolated...
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| Format: | Article |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/3858457 |
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| author | Linwei Jiang Jian Zhong Min He Wancheng Yuan |
| author_facet | Linwei Jiang Jian Zhong Min He Wancheng Yuan |
| author_sort | Linwei Jiang |
| collection | DOAJ |
| description | Isolated bridges are commonly designed in the near-fault region to balance excessive displacement and seismic force. Optimal intensity measures (IMs) of probabilistic seismic demand models for isolated bridges subjected to pulse-like ground motions are identified in this study. Four typical isolated girder bridge types with varied pier height (from 4 m to 20 m) are employed to conduct the nonlinear time history analysis. Totally seven structure-independent IMs are considered and compared. Critical engineering demand parameters (EDPs), namely, pier ductility demands and bearing deformation along the longitudinal and transverse directions, are recorded during the process. In general, PGV tends to be the optimal IM for isolated bridges under pulse-like ground motions based on practicality, efficiency, proficiency, and sufficiency criterions. The results can offer effective guidance for the optimal intensity measure selection of the probabilistic seismic demand models (PSDMs) of isolated bridges under pulse-like ground motions. |
| format | Article |
| id | doaj-art-ea877e350c5c47b7b12b5f22abd53d81 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
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| series | Advances in Civil Engineering |
| spelling | doaj-art-ea877e350c5c47b7b12b5f22abd53d812025-02-03T01:29:02ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/38584573858457Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground MotionsLinwei Jiang0Jian Zhong1Min He2Wancheng Yuan3Department of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaDepartment of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaDepartment of Civil Engineering, Hefei University of Technology, Hefei 230009, ChinaState Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, ChinaIsolated bridges are commonly designed in the near-fault region to balance excessive displacement and seismic force. Optimal intensity measures (IMs) of probabilistic seismic demand models for isolated bridges subjected to pulse-like ground motions are identified in this study. Four typical isolated girder bridge types with varied pier height (from 4 m to 20 m) are employed to conduct the nonlinear time history analysis. Totally seven structure-independent IMs are considered and compared. Critical engineering demand parameters (EDPs), namely, pier ductility demands and bearing deformation along the longitudinal and transverse directions, are recorded during the process. In general, PGV tends to be the optimal IM for isolated bridges under pulse-like ground motions based on practicality, efficiency, proficiency, and sufficiency criterions. The results can offer effective guidance for the optimal intensity measure selection of the probabilistic seismic demand models (PSDMs) of isolated bridges under pulse-like ground motions.http://dx.doi.org/10.1155/2019/3858457 |
| spellingShingle | Linwei Jiang Jian Zhong Min He Wancheng Yuan Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions Advances in Civil Engineering |
| title | Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions |
| title_full | Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions |
| title_fullStr | Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions |
| title_full_unstemmed | Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions |
| title_short | Optimal Seismic Intensity Measure Selection for Isolated Bridges under Pulse-Like Ground Motions |
| title_sort | optimal seismic intensity measure selection for isolated bridges under pulse like ground motions |
| url | http://dx.doi.org/10.1155/2019/3858457 |
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