Smart Structures and Systems

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Performance of passive and active MTMDs in seismic response of Ahvaz cable-stayed bridge

  • Zahrai, Seyed Mehdi (Center of excellence for Engineering and Management of civil Infrastructures, School of Civil Engineering, College of Engineering, University of Tehran) ;
  • Froozanfar, Mohammad (Center of excellence for Engineering and Management of civil Infrastructures, School of Civil Engineering, College of Engineering, University of Tehran)
  • Received : 2018.04.06
  • Accepted : 2019.04.09
  • Published : 2019.05.25
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Abstract

Cable-stayed bridges are attractive due to their beauty, reducing material consumption, less harm to the environment and so on, in comparison with other kinds of bridges. As a massive structure with long period and low damping (0.3 to 2%) under many dynamic loads, these bridges are susceptible to fatigue, serviceability disorder, damage or even collapse. Tuned Mass Damper (TMD) is a suitable controlling system to reduce the vibrations and prevent the threats in such bridges. In this paper, Multi Tuned Mass Damper (MTMD) system is added to the Ahvaz cable stayed Bridge in Iran, to reduce its seismic vibrations. First, the bridge is modeled in SAP2000 followed with result verification. Dead and live loads and the moving loads have been assigned to the bridge. Then the finite element model is developed in OpenSees, with the goal of running a nonlinear time-history analysis. Three far-field and three near-field earthquake records are imposed to the model after scaling to the PGA of 0.25 g, 0.4 g, 0.55 g and 0.7 g. Two MTMD systems, passive and active, with the number of TMDs from 1 to 8, are placed in specific points of the main span of bridge, adding a total mass ratio of 1 to 10% to the bridge. The parameters of the TMDs are optimized using Genetic Algorithm (GA). Also, the optimum force for active control is achieved by Fuzzy Logic Control (FLC). The results showed that the maximum displacement of the center of the bridge main span reduced 33% and 48% respectively by adding passive and active MTMD systems. The RMS of displacement reduced 37% and 47%, the velocity 36% and 42% and also the base shear in pylons, 27% and 47%, respectively by adding passive and active systems, in the best cases.

Keywords

References

  1. Casado, A.K. (2011), Seismic behavior of cable-stayed bridges: Design, analysis and seismic devices, Doctoral thesis, Department of continuum mechanics and theory of structures, Universidad Politechnica de Madrid.
  2. Casado, C.M., Diaz, I.M., Sebastian, J., Poncela, A.V. and Lorenzana, A. (2010), "Implementation of passive and active vibration control on an in-service footbridge", Struct. Control Health Monit., 20(1), 70-87. https://doi.org/10.1002/stc.471.
  3. Dehghan-Niri, E., Zahrai, S.M. and Mohtat, A. (2010), "Effectiveness-robustness objectives in MTMD system design: An evolutionary optimal design methodology", Struct. Control Health Monit., 17(2), 218-236. https://doi.org/10.1002/stc.297.
  4. Den Hartog, J.P. (1947), Mechanical vibrations, 3rd Ed., New York: McGraw-Hill.
  5. Elias, S. and Matsagar, V. (2017), "Research developments in vibration control of structures using passive tuned mass dampers", Annu. Rev. Control, 44, 129-156. https://doi.org/10.1016/j.arcontrol.2017.09.015.
  6. Falcon, K.C., Stone B.J., Simcock, W.D. and Andrew, C. (1967), "Optimization of vibration absorbers: A graphical method for use on idealized systems with restricted damping", J. Mech. Eng. Sci., 9(5), 374-381. https://doi.org/10.1243/JMES_JOUR_1967_009_058_02.
  7. Frahm, H. (1909), "Devices for Damping Vibration of Bodies", US Patent.
  8. Frans, R. and Arfiadi, Y. (2015), "Designing optimum locations and properties of MTMD systems", Civil Eng. Innov. Sustain,, 125, 892-898. https://doi.org/10.1016/j.proeng.2015.11.079
  9. Igusa, T. and Xu, K. (1994). "Vibration control using multiple tuned dampers", J. Sound Vib., 175(4), 491-503. https://doi.org/10.1006/jsvi.1994.1341.
  10. Ioi, T. and Ikeda, K. (1978), "On the dynamic vibration damped absorber of the vibration system", Bull. Jap. Soc. Mech. Eng., 21(151), 64-71. https://doi.org/10.1299/jsme1958.21.64.
  11. Jimenez-Alonso, J.F. and Saez, A. (2015), "Estimating robust optimum parameters of tuned mass dampers using multiobjective genetic algorithms", Proceedings of the 3rd International Conference on Mechanical Models in Structural Engineering (CMMoST), Sch. Architecture, Seville, Spain.
  12. Lavan, O. (2017), "Multi-objective optimal design of tuned mass dampers", Struct. Control Health Monit., 24 (11), https://doi.org/10.1002/stc.2008
  13. Li, C. and Liu, Y. (2002). "Active multiple tuned mass dampers for structures under the ground acceleration", Earthq. Eng. Struct. D., 31(5), 1041-1052. https://doi.org/10.1002/eqe.136.
  14. Li, Z.J., Zuo, S.Y. and Liu, Y.Y. (2014), "Fuzzy Sliding Mode Control for Smart Structure with ATMD", Proceedings of the 3rd Chinese Control Conference (CCC), Nanjing, 21-25.
  15. Nagarajaiah, S. and Jung, H.J. (2014), "Smart tuned mass dampers: recent developments", Smart Struct. Syst., 13(2), 173-176. https://doi.org/10.12989/sss.2014.13.2.173.
  16. Nazarimofrad, E. and Zahrai, S.M. (2018). "Fuzzy control of asymmetric plan buildings with ATMD considering soil structure interaction", Soil Dynam. Earthq. Eng., 115, 838-852. https://doi.org/10.1016/j.soildyn.2017.09.020.
  17. OpenSees (2008), "Open system for earthquake engineering simulation", Pacific earthquake engineering research center, University of California, Berkeley, USA.
  18. Ormondroyd, J. and Den Hartog J.P. (1928), "The theory of dynamic vibration absorber", Transaction of the ASME, 50, 9-22.
  19. Ramezani, M., Bathaei, A. and Zahrai, S.M. (2017), "Designing fuzzy systems for optimal parameters of TMDs to reduce seismic response of tall buildings", Smart Struct. Syst., 19(3), 61-74. https://doi.org/10.12989/sss.2017.19.3.269.
  20. Salvi, J. and Rizzi, E. (2016), "Closed-form optimum tuning formulas for passive Tuned Mass Dampers under benchmark excitations", Smart Struct. Syst., 17(2), 231-256. https://doi.org/10.12989/sss.2016.17.2.231.
  21. SAP2000 (2008), "Integrated structural analysis and design software", Computers and Structures Inc. Berkeley, California, USA.
  22. Snowdon, J.C. (1959), "Steady-state behavior of the dynamic absorber", J. Acoust. Soc. Am., 31(8), 1096-1103. https://doi.org/10.1121/1.1907832.
  23. Tori, K., Ikeda, K. and Nagasaki, T. (1968). "A non-iterative optimum design method for cable-stayed bridges", In Processing of Japan Society of Civil Engineers, 115-123.
  24. Veranzio, F. (1595), Machinae Novae, Heinz Moos Verlag.
  25. Wen, Y.K. and Sun, L.M. (2011), "Research on wind response control of large cable-stayed bridge under construction by using hybrid system of TMDs and ATMDs", Eng. Mech., 28(7), 171-179.
  26. Wen, Y.K. and Sun, L.M. (2015), "Distributed ATMD for buffeting control of cable-stayed bridges under construction", Struct. Stab. Dynam., 15(3). https://doi.org/10.1142/S0219455414500540.
  27. Wilson, J. and Gravelle, W. (1991). "Modeling of a cable-stayed bridge for dynamic analysis", Earthq. Eng. Struct. D., 20,707- 771. https://doi.org/10.1002/eqe.4290200802.
  28. Wu, J.N. and Chen, G.D. (2000), "Optimization of multiple tuned mass dampers for seismic response reduction", Proceedings of the American Control Conference, Chicago, IL, U.S.
  29. Xu, K. and Igusa, T. (1992), "Dynamic characteristics of multiple substructures with closely spaced frequencies", Earthq. Eng. Struct. D., 21, 1059-1070. https://doi.org/10.1002/eqe.4290211203.

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