Earthquakes and Structures

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Seismic vulnerability analysis of multilink highway bridges considering spatially varying ground motions

  • Yu Zhang (School of Civil Engineering, Shandong University) ;
  • Ruipeng Guo (Shandong Hi-speed Engineering Construction Group Co., Ltd.) ;
  • Chen Liu (School of Civil Engineering, Shandong University) ;
  • Li Tian (School of Civil Engineering, Shandong University) ;
  • Hanlin Dong (College of Civil Engineering, Shanghai Normal University) ;
  • Chao Li (School of Civil Engineering, Shandong University)
  • Received : 2024.03.22
  • Accepted : 2024.08.22
  • Published : 2024.11.25
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Abstract

Highway bridges usually extend over long distances and are vulnerable to the variation of ground motions. In this paper, a 5-link continuous bridge with a total length of 510 m was selected for seismic vulnerability analyses under consistent and multi-support excitations. Fragility curves for piers and bearings considering both the non-isolated and isolated conditions are generated through incremental dynamic analysis (IDA). The results show that for the non-isolated condition with elastomeric bearings (EBs), the junction piers between adjacent links are more vulnerable than interior piers within links under consistent excitation, whereas it is exactly the opposite for the bearings. Under the multi-support excitation, the fragility of the bearings at junction piers significantly increases due to the unsynchronized movement of adjacent links. For the isolated condition with lead-core rubber bearings (LRBs) and friction pendulum bearings (FPBs), the fragility of piers is effectively reduced compared to EBs, especially for FPBs and under multi-support excitation. The fragility of LRBs is lower than that of EBs under both excitation modes. The fragility of FPBs is apparently higher than that of the piers, controlling the vulnerability of the bridge. This study provides a reference for the seismic design of highway bridges.

Keywords

Acknowledgement

The research was financially supported by the National Natural Science Foundation of China (52208178), the Natural Science Foundation of Shandong Province (ZR2022QE128), and the State Key Laboratory of Coastal and Offshore Engineering (LP22219).

References

  1. Adanur, S., Altunisik, A.C., Soyluk, K., Dumanoglu, A.A. and Bayraktar, A. (2016), "Contribution of local site-effect on the seismic response of suspension bridges to spatially varying ground motions", Earthq. Struct., 10(5), 1233-1251. https://doi.org/10.12989/eas.2016.10.5.1233.
  2. Amin, M. and Ang, A.H.S. (1968), "Nonstationary stochastic models of earthquake motions", J. Eng. Mech., 94(2), 559-584. https://doi.org/10.1061/JMCEA3.0000969.
  3. Bi, K. and Hao, H. (2012), "Modelling and simulation of spatially varying earthquake ground motions at sites with varying conditions", Probabilist. Eng. Mech., 29, 92-104. https://doi.org/10.1016/j.probengmech.2011.09.002.
  4. Borzoo, S., Bastami, M., Fallah, A., Garakaninezhad, A. and Abbasnejadfard, M. (2024), "Correlated damage probabilities of bridges in seismic risk assessment of transportation networks: Case study, Tehran", Earthq. Struct., 26(2), 87-96. https://doi.org/10.12989/eas.2024.26.2.087.
  5. Buckle, I.G., Friedland, I., Mander, J., Martin, G., Nutt, R. and Power, M. (2006), "Seismic retrofitting manual for highway structures. Part 1, Bridges", Research Report No. FHWA-HRT06-032; Turner-Fairbank Highway Research Center, Washington, D.C., USA.
  6. Chen, Z.Q., Zheng, S.X., Ding, Z.H., Zhang, J. and Tai, Y.J. (2021), "Seismic reliability evaluation of bridges under spatially varying ground motions using a four-parameter distribution", Eng. Struct., 247, 113157. https://doi.org/10.1016/j.engstruct.2021.113157.
  7. Clough, R.W. and Penzien, J. (2010), Dynamics of Structures, 2nd Edition, Computers and Structures, Inc., New York, NY, USA.
  8. FEMA (2013), Multi-Hazard Loss Estimation Methodology. Earthquake Model, Hazus-MH 2.1, Department of Homeland Security Federal Emergency Management Agency Mitigation Division, Washington, DC, USA.
  9. Hosseini, A.R.M., Razzaghi, M.S. and Shamskia, N. (2023), "Probabilistic seismic safety assessment of bridges with random pier scouring", Proc. Inst. Civil Eng. Struct. Build., 177(9), 1-18. https://doi.org/10.1680/jstbu.23.00014.
  10. Hu, Z.L., Wei, B., He, X.H., Jiang, L.Z. and Li, S.S. (2022), "Effects of spatial variation of ground motion (SVGM) on seismic vulnerability of ultra-high tower and multi-tower cable-stayed bridges", J. Earthq. Eng., 26(16), 8495-8524. https://doi.org/10.1080/13632469.2021.1991517.
  11. Jacob, M. (2022), "Modal analysis of an RCC long span arch bridge using midas Civil-A validation", Mater. Today: Proc., 57, 460-463. https://doi.org/10.1016/j.matpr.2022.01.185.
  12. JTG 3362-2018 (2018), Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts, China Communication Press, Beijing, China.
  13. JTG/T 2231-01 (2020), Specifications for Seismic Design of Highway Bridges, Ministry of Transportation of the People's Republic of China, Beijing, China.
  14. Kim, S.H. and Feng, M.Q. (2003), "Fragility analysis of bridges under ground motion with spatial variation", Int. J. Nonlinear Mech., 38(5), 705721. https://doi.org/10.1016/S0020-7462(01)00128-7.
  15. Kobayashi, M. (2014), "Experience of infrastructure damage caused by the Great East Japan Earthquake and countermeasures against future disasters", IEEE Commun. Mag., 52(3), 23-29. https://doi.org/10.1109/MCOM.2014.6766080.
  16. Li, L., Bu, Y.Z., Jia, H., Zheng, S., Zhang, D. and Bi, K. (2017), "An improved approach for multiple support response spectral analysis of a long-span high-pier railway bridge", Earthq. Struct., 13(2), 193-200. https://doi.org/10.12989/eas.2017.13.2.193.
  17. Liang, Y., Wei, Y.Y., Tong, M.N. and Cui, Y.K. (2023), "Time-dependent seismic risk analysis of high-speed railway bridges considering material durability effects", Earthq. Struct., 24(4), 275-288. https://doi.org/10.12989/eas.2023.24.4.275.
  18. Ma, K., Zhong, J., Feng, R. and Yuan, W. (2019), "Investigation of ground-motion spatial variability effects on component and system vulnerability of a floating cable-stayed bridge", Adv. Struct. Eng., 22(8), 1923-1937. https://doi.org/10.1177/1369433219827238.
  19. Mander, J.B., Priestley, M.J. and Park, R. (1988), "Theoretical stress-strain model for confined concrete", J. Struct. Eng., 114(8), 1804-1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804).
  20. Menegotto, M. and Pinto, P.E. (1973), "Method of analysis for cyclically loaded RC plane frames including changes in geometry and non-elastic behavior of elements under combined normal force and bending", Proceedings of IABSE Symposium on Resistance and Ultimate Deformability of Structures Acted on by Well Defined Repeated Loads, Zurich, Switzerland.
  21. Neuenhofer, A. and Filippou, F.C. (1998), "Geometrically nonlinear flexibility-based frame finite element", J. Struct. Eng., 124(6), 704-711. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:6(704).
  22. Nielson, B.G. and DesRoches, R. (2007), "Analytical seismic fragility curves for typical bridges in the central and southeastern United States", Earthq. Spectra, 23(3), 615-633. https://doi.org/10.1193/1.2756815.
  23. Piskin, M. (2023), Analyzing Regional Economic Impacts of Expected Istanbul Earthquake: Indirect Effects of Highway Disruptions and Lifeline Outages, Iksad Publishing House, Ankara, Turkey.
  24. Ramadan, O.M., Mehanny, S.S and Kotb A.A.M. (2020), "Assessment of seismic vulnerability of continuous bridges considering soil-structure interaction and wave passage effects", Eng. Struct., 206, 110161. https://doi.org/10.1016/j.engstruct.2019.110161.
  25. Razzaghi, M.S., Safarkhanlou, M., Mosleh, A. and Hosseini, P. (2018), "Fragility assessment of RC bridges using numerical analysis and artificial neural networks", Earthq. Struct., 15(4), 431-441. https://doi.org/10.12989/eas.2018.15.4.431.
  26. Siqueira, G.H., Sanda, A.S., Paultre, P. and Padgett, J.E. (2014), "Fragility curves for isolated bridges in eastern Canada using experimental results", Eng. Struct., 74, 311-324. https://doi.org/10.1016/j.engstruct.2014.04.053.
  27. Sobczyk, K. (1991), Stochastic Wave Propagation, Kluwer Academic Publishers, North Holland, Netherlands.
  28. Tavares, D.H., Suescun, J.R., Paultre, P. and Padgett, J.E. (2013), "Seismic fragility of a highway bridge in Quebec", J. Bridge Eng., 18(11), 1131-1139. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000471.
  29. Xiong, M., Huang, Y. and Zhao, Q. (2018). "Effect of travelling waves on stochastic seismic response and dynamic reliability of a long-span bridge on soft soil", Bull. Earthq. Eng., 16(9), 3721-3738. https://doi.org/10.1007/s10518-018-0316-x.
  30. Yamazaki, F., Motomura, H. and Hamada, T. (2000), "Damage Assessment of expressway networks in Japan based on seismic monitoring", Proceedings of the 12th World Conference on Earthquake Engineering, Auckland, New Zealand, January.
  31. Zerva, A. (2016), Spatial Variation of Seismic Ground Motions: Modeling and Engineering Applications, CRC Press, Boca Raton, FL, USA.
  32. Zhao, Q., Qiu, J., An, Z. and Qi, Z. (2018), "Research on SSI simulation method of integral abutment bridge under earthquake", Proceedings of the Ninth International Conference on Bridge Maintenance, Safety and Management, Melbourne, Australia, July.