A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges
Displacement-based seismic design methods support the performance-based seismic design philosophy known to be the most advanced seismic design theory. This paper explores one common type of irregular-continuous bridges and studies the prediction of their elastoplastic displacement demand, based on a...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/8899705 |
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| author | Shanshan Li Ping Xiang Biao Wei Lu Yan Ye Xia |
| author_facet | Shanshan Li Ping Xiang Biao Wei Lu Yan Ye Xia |
| author_sort | Shanshan Li |
| collection | DOAJ |
| description | Displacement-based seismic design methods support the performance-based seismic design philosophy known to be the most advanced seismic design theory. This paper explores one common type of irregular-continuous bridges and studies the prediction of their elastoplastic displacement demand, based on a new nonlinear static procedure. This benefits to achieve the operation of displacement-based seismic design. Three irregular-continuous bridges are analyzed to advance the equivalent SDOF system, build the capacity spectrum and the inelastic spectrum, and generate the new nonlinear static analysis. The proposed approach is used to simplify the prediction of elastoplastic displacement demand and is validated by parametric analysis. The new nonlinear static procedure is also used to achieve the displacement-based seismic design procedure. It is tested by an example to obtain results which show that after several combinations of the capacity spectrum (obtained by a pushover analysis) and the inelastic demand spectrum, the simplified displacement-based seismic design of the common irregular-continuous bridges can be achieved. By this design, the seismic damage on structures is effectively controlled. |
| format | Article |
| id | doaj-art-2e2a5e803f0247c19dbb0c650623c243 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2e2a5e803f0247c19dbb0c650623c2432025-08-20T02:38:48ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/88997058899705A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular BridgesShanshan Li0Ping Xiang1Biao Wei2Lu Yan3Ye Xia4School of Civil Engineering, Central South University, 22 Shaoshan South Road, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, 22 Shaoshan South Road, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, 22 Shaoshan South Road, Changsha 410075, ChinaSchool of Civil Engineering, Central South University, 22 Shaoshan South Road, Changsha 410075, ChinaDepartment of Bridge Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, ChinaDisplacement-based seismic design methods support the performance-based seismic design philosophy known to be the most advanced seismic design theory. This paper explores one common type of irregular-continuous bridges and studies the prediction of their elastoplastic displacement demand, based on a new nonlinear static procedure. This benefits to achieve the operation of displacement-based seismic design. Three irregular-continuous bridges are analyzed to advance the equivalent SDOF system, build the capacity spectrum and the inelastic spectrum, and generate the new nonlinear static analysis. The proposed approach is used to simplify the prediction of elastoplastic displacement demand and is validated by parametric analysis. The new nonlinear static procedure is also used to achieve the displacement-based seismic design procedure. It is tested by an example to obtain results which show that after several combinations of the capacity spectrum (obtained by a pushover analysis) and the inelastic demand spectrum, the simplified displacement-based seismic design of the common irregular-continuous bridges can be achieved. By this design, the seismic damage on structures is effectively controlled.http://dx.doi.org/10.1155/2020/8899705 |
| spellingShingle | Shanshan Li Ping Xiang Biao Wei Lu Yan Ye Xia A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges Shock and Vibration |
| title | A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges |
| title_full | A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges |
| title_fullStr | A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges |
| title_full_unstemmed | A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges |
| title_short | A Nonlinear Static Procedure for the Seismic Design of Symmetrical Irregular Bridges |
| title_sort | nonlinear static procedure for the seismic design of symmetrical irregular bridges |
| url | http://dx.doi.org/10.1155/2020/8899705 |
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