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A.J. Kappos, I. Papadopoulos, A. Tokatlidis, "Design of a Seismically Isolated Railway Viaduct over Axios River in Northern Greece", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 80, 2014. doi:10.4203/ccp.104.80

Keywords: railway bridges, seismic isolation, nonlinear analysis, Eurocode 8-2.

Summary

This paper presents the salient features of the design of a railway viaduct over the Axios River on the new high-speed double railway line, which is the longest (800m) railway bridge in Greece constructed using the travelling gantry method. Located in a high seismic hazard area, the viaduct is provided with an isolation system with the aim of reducing the structural response to seismic loading, a solution that presents several challenges in the case of railway bridges and cannot be implemented solely on the basis of existing codes. Lead-rubber bearings are provided at each pier to deck connection and system damping is further increased through the use of fluid viscous dampers at each abutment. To verify the performance of the isolation system, the analysis for seismic actions is conducted in three discrete stages of increasing complexity. Seismic forces and displacements are found to be within acceptable limits and serviceability requirements are also met. Conclusions are drawn regarding the feasibility of using passive systems in railway bridges in seismic areas.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 80 Design of a Seismically Isolated Railway Viaduct over Axios River in Northern Greece A.J. Kappos¹, I. Papadopoulos² and A. Tokatlidis² ¹City University London, Department Civil Engineering, London, United Kingdom ²METE SYSM S.A., Thessaloniki, Greece doi:10.4203/ccp.104.80 purchase the full-text of this paper Full Bibliographic Reference for this paper A.J. Kappos, I. Papadopoulos, A. Tokatlidis, "Design of a Seismically Isolated Railway Viaduct over Axios River in Northern Greece", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 80, 2014. doi:10.4203/ccp.104.80 Keywords: railway bridges, seismic isolation, nonlinear analysis, Eurocode 8-2. Summary This paper presents the salient features of the design of a railway viaduct over the Axios River on the new high-speed double railway line, which is the longest (800m) railway bridge in Greece constructed using the travelling gantry method. Located in a high seismic hazard area, the viaduct is provided with an isolation system with the aim of reducing the structural response to seismic loading, a solution that presents several challenges in the case of railway bridges and cannot be implemented solely on the basis of existing codes. Lead-rubber bearings are provided at each pier to deck connection and system damping is further increased through the use of fluid viscous dampers at each abutment. To verify the performance of the isolation system, the analysis for seismic actions is conducted in three discrete stages of increasing complexity. Seismic forces and displacements are found to be within acceptable limits and serviceability requirements are also met. Conclusions are drawn regarding the feasibility of using passive systems in railway bridges in seismic areas. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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