International Journal of High-Rise Buildings (국제초고층학회논문집)

Council on Tall Building and Urban Habitat Korea (한국초고층도시건축학회)
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Dynamic Characteristics and Responses of Tall Building Structures with Double Negative Stiffness Damped Outriggers

  • Sun, Feifei (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University) ;
  • Duan, Ningling (Department of Structural Engineering, Tongji University) ;
  • Wang, Meng (Department of Structural Engineering, Tongji University) ;
  • Yang, Jiaqi (Department of Structural Engineering, Tongji University)
  • Published : 2021.09.15
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Abstract

Dynamic characteristics of tall building structures with double negative stiffness damped outriggers (2NSDO) are parametrically studied using the theoretical formula. Compared with one negative stiffness damped outrigger (1NSDO), 2NSDO can achieve a similar maximal modal damping ratio with a smaller negative stiffness ratio. Besides, the 2NSDO can improve the maximum achievable damping ratio to about 30% with less consumption of an outrigger damping coefficient compared with the double conventional damped outriggers (2CDO). Besides, the responses of structures with 2NSDO under fluctuating wind load are investigated by time-history analysis. Numerical results show that the 2NSDO is effective in reducing structural acceleration under fluctuating wind load, being more efficient than 1NSDO.

Keywords

Acknowledgement

Financial support from the State Key Laboratory of Disaster Reduction in Civil Engineering of China (Grant No. SLDRCE19-B-16) is greatly acknowledged by authors.

References

  1. Antoniadis, I. A., S. A. Kanarachos, K. Gryllias, and I. E. Sapountzakis. 2016. "KDamping: A stiffness based vibration absorption concept." J. Vib. Control 24(3), 588-606. https://doi.org/10.1177/1077546316646514
  2. Chen, L., L. Sun, and S. Nagarajaiah. 2015. "Cable with discrete negative stiffness device and viscous damper: Passive realization and general characteristics." Smart Struct. Syst. 15(3), 627-643. https://doi.org/10.12989/sss.2015.15.3.627
  3. Duan N. L. (2021) Study on Wind-induced Structural Vibration of Tall Buildings with Negative Stiffness Damped Outriggers. Tongji University.
  4. Iemura, H., and M. H. Pradono. 2009. "Advances in the development of pseudo-negative-stiffness dampers for seismic response control." Struct. Control Health Monit. 16(8), 784-799.
  5. Kwon, I. Y., H. T. Yang, P. K. Hansma, and C. J. Randall. 2016. "Implementable bio-inspired passive negative spring actuator for full-scale structural control under seismic excitation." J. Struct. Eng. 142(1), 04015079. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001323
  6. Nagarajaiah, S. 2009. "Adaptive passive, semiactive, smart tuned mass dampers: Identification and control using empirical mode decomposition, Hilbert transform, and short-term Fourier transform." Struct. Control Health Monit. 16(7-8), 800-841. https://doi.org/10.1002/stc.349
  7. Pasala, D. T. R., A. A. Sarlis, A. M. Reinhorn, S. Nagarajaiah, M. C. Constantinou, and D. Taylor. 2015. "Apparent weakening in SDOF yielding structures using a negative stiffness device: Experimental and analytical study." J. Struct. Eng. 141(4), 04014130. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001077
  8. Pasala, D. T. R., A. A. Sarlis, S. Nagarajaiah, A. M. Reinhorn, M. C. Constantinou, and D. Taylor. 2013. "Adaptive negative stiffness: New structural modification approach for seismic protection." J. Struct. Eng. 139(7), 1112-1123. https://doi.org/10.1061/(asce)st.1943-541x.0000615
  9. Pasala, D. T. R., S. Nagarajaiah, D. Taylor, A. M. Reinhorn, M. C. Constantinou, and A. A. Sarlis. 2014. "Simulated bilinear-elastic behavior in a SDOF elastic structure using negative stiffness device: Experimental and analytical study." J. Struct. Eng. 140(2), 04013049 https://doi.org/10.1061/(asce)st.1943-541x.0000830
  10. Qu, C., H. N. Li, L. Huo, and T. H. Yi. 2017. "Optimum value of negative stiffness and additional damping in civil structures." J. Struct. Eng. 143(8), 04017068. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001805
  11. Sarlis, A. A., D. T. R. Pasala, M. C. Constantinou, A. M. Reinhorn, S. Nagarajaiah, and D. P.Taylor. 2013. "Negative stiffness device for seismic protection of structures." J. Struct. Eng. 139(7), 1124-1133. https://doi.org/10.1061/(asce)st.1943-541x.0000616
  12. Sapountzakis, E. J., P. G. Syrimi, I. A. Pantazis, and I. A. Antoniadis. 2017. KDamper concept in seismic isolation of bridges with flexible piers." Eng. Struct. 153(Dec), 525-539. https://doi.org/10.1016/j.engstruct.2017.10.044
  13. Shi, X., and S. Zhu. 2015. "Magnetic negative stiffness dampers." Smart Mater. Struct. 24(7), 072002. https://doi.org/10.1088/0964-1726/24/7/072002
  14. Sun, F. F., Wang, M., Nagarajaiah, S. (2021). Multi-objective optimal design and seismic performance of negative stiffness damped outrigger structures considering damping cost. Engineering Structures, 229, 111615. https://doi.org/10.1016/j.engstruct.2020.111615
  15. Sun, T., Z. Lai, S. Nagarajaiah, and H. Li. 2017. "Negative stiffness device for seismic protection of smart base isolated benchmark building." Struct. Control Health Monit. 24(11), e1968. https://doi.org/10.1002/stc.1968
  16. Tan, P., C. J. Fang, C. M. Chang, B. F. Spencer, and F. L. Zhou. 2015. "Dynamic characteristics of novel energy dissipation systems with damped outriggers." Eng. Struct. 98(Sep), 128-140. https://doi.org/10.1016/j.engstruct.2015.04.033
  17. Wang, M., Sun, F. F., and Jin H. J. 2018. "Performance evaluation of existing isolated buildings with supplemental passive pseudo-negative stiffness devices." Eng. Struct.
  18. Wang, M., Sun, F., and Nagarajaiah, S. (2019). Simplified optimal design of mdof structures with negative stiffness amplifying dampers based on effective damping. The Structural Design of Tall and Special Buildings.
  19. Wang, M., Sun, F. F., Yang, J. Q., and Nagarajaiah, S. (2019). Seismic protection of sdof systems with a negative stiffness amplifying damper. Engineering Structures, 190(JUL.1), 128-141. https://doi.org/10.1016/j.engstruct.2019.03.110
  20. Wang, M., Nagarajaiah, S., and Sun, F. F. (2020). Dynamic characteristics and responses of damped outrigger tall buildings using negative stiffness. Journal of Structural Engineering, 146(12), 04020273. https://doi.org/10.1061/(asce)st.1943-541x.0002846