Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge
In order to improve the seismic performance of long-span double deck steel truss continuous girder bridge, taking Dao Qing Chau Bridge in Fuzhou as an engineering background, the isolation scheme of friction pendulum bearing (FPB) and friction pendulum bearing combined with viscous dampers is applie...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/5/2567 |
| _version_ | 1827651851565137920 |
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| author | Yongjian Chen Honglie Sun Zhenfa Feng |
| author_facet | Yongjian Chen Honglie Sun Zhenfa Feng |
| author_sort | Yongjian Chen |
| collection | DOAJ |
| description | In order to improve the seismic performance of long-span double deck steel truss continuous girder bridge, taking Dao Qing Chau Bridge in Fuzhou as an engineering background, the isolation scheme of friction pendulum bearing (FPB) and friction pendulum bearing combined with viscous dampers is applied to study seismic performance. A three-dimensional dynamic model of the bridge is established using SAP2000. Taking three artificial seismic waves as seismic excitation, the seismic response of the seismic structure is calculated by nonlinear time history integration, and is then compared with the seismic response of the seismic reduction and isolation structure. The results show that the friction pendulum bearing (FPB) scheme and combined seismic dissipation and isolation (CSDI) scheme show a good seismic dissipation and isolation effect and ensure the safety of the bridge structure. However, for whole-bridge isolation, friction pendulum bearing (FPB) will produce certain residual deformations and additional stress of the bearing under the conditions of temperature and external load. For the purpose of protecting the bearing, it is recommended to use the combined seismic dissipation and isolation (CSDI) scheme. |
| first_indexed | 2024-03-09T20:47:18Z |
| format | Article |
| id | doaj.art-1162c0d23fde49b5bdf880b80e8befb7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T20:47:18Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-1162c0d23fde49b5bdf880b80e8befb72023-11-23T22:42:54ZengMDPI AGApplied Sciences2076-34172022-03-01125256710.3390/app12052567Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder BridgeYongjian Chen0Honglie Sun1Zhenfa Feng2College of Civil Engineering, Fuzhou University, Fuzhou 350116, ChinaCollege of Civil Engineering, Fuzhou University, Fuzhou 350116, ChinaChina Construction Fifth Engineering Division Corp., Ltd., Changsha 410019, ChinaIn order to improve the seismic performance of long-span double deck steel truss continuous girder bridge, taking Dao Qing Chau Bridge in Fuzhou as an engineering background, the isolation scheme of friction pendulum bearing (FPB) and friction pendulum bearing combined with viscous dampers is applied to study seismic performance. A three-dimensional dynamic model of the bridge is established using SAP2000. Taking three artificial seismic waves as seismic excitation, the seismic response of the seismic structure is calculated by nonlinear time history integration, and is then compared with the seismic response of the seismic reduction and isolation structure. The results show that the friction pendulum bearing (FPB) scheme and combined seismic dissipation and isolation (CSDI) scheme show a good seismic dissipation and isolation effect and ensure the safety of the bridge structure. However, for whole-bridge isolation, friction pendulum bearing (FPB) will produce certain residual deformations and additional stress of the bearing under the conditions of temperature and external load. For the purpose of protecting the bearing, it is recommended to use the combined seismic dissipation and isolation (CSDI) scheme.https://www.mdpi.com/2076-3417/12/5/2567double deck steel trusscontinuous girder bridgefriction pendulum bearingviscous dampercombined seismic dissipation and isolation |
| spellingShingle | Yongjian Chen Honglie Sun Zhenfa Feng Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge Applied Sciences double deck steel truss continuous girder bridge friction pendulum bearing viscous damper combined seismic dissipation and isolation |
| title | Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge |
| title_full | Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge |
| title_fullStr | Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge |
| title_full_unstemmed | Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge |
| title_short | Study on Seismic Isolation of Long Span Double Deck Steel Truss Continuous Girder Bridge |
| title_sort | study on seismic isolation of long span double deck steel truss continuous girder bridge |
| topic | double deck steel truss continuous girder bridge friction pendulum bearing viscous damper combined seismic dissipation and isolation |
| url | https://www.mdpi.com/2076-3417/12/5/2567 |
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