Abstract
In this study, a coke-shaped steel damper that exhibits in-plane resistance is introduced as a passive damper. The double-coke damper presented in this study applies the concept of reduced beam sections to increase the ductility in the case of a prolonged earthquake. Multiplastic hinges are placed on each strip by setting the radius-cut section. The fatigue performance of the damper during earthquake loading is verified through a constant cyclic loading test. The results indicate that, as the number of plastic hinges inside the strip increases, the damper ductility increases, producing a stable hysteresis graph. In addition, a new equation that considers the damage index using parameters such as maximum strength and effective stiffness is proposed, and the experimental results are found to be in excellent agreement with the number of failure cycles obtained from the proposed model. By comparing the results of applying the proposed equation with the machine learning results, it is demonstrated that machine learning can be used for estimating the damper performance against the fatigue of the resistive cycle.
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References
ASCE/SEI 7-10. (2010). Minimum design loads for buildings and other structures. Reston, VA: American Society of Civil Engineers.
Bae, J., & Karavasilis, T. L. (2018). Seismic design and assessment of steel frames with visco-plastic dampers. International Journal of Earthquake and Impact Engineering, 2(4), 282–297.
Chan, R. W., & Albermani, F. (2008). Experimental study of steel slit damper for passive energy dissipation. Engineering Structures, 30(4), 1058–1066.
Chen, G., Mu, H., & Bothe, E. R. (2001). Metallic dampers for seismic design and retrofit of bridges.
Christopoulos, C., Filiatrault, A., & Bertero, V. V. (2006). Principles of passive supplemental damping and seismic isolation. Pavia: IUSS Press.
Constantinou, M. C, Soong, T. T., & Dargush, G. F. (1998). Passive energy dissipation systems for structural design and retrofit.
Deng, K., Pan, P., Li, W., & Xue, Y. (2015). Development of a buckling restrained shear panel damper. Journal of Constructional Steel Research, 106, 311–321.
Engelhardt, M. D., Winneberger, T., Zekany, A. J., & Potyraj, T. J. (1996). The dogbone connection: Part II. Modern Steel Construction, 36(8), 46–55.
Fatemi, A., & Yang, L. (1998). Cumulative fatigue damage and life prediction theories: A survey of the state of the art for homogeneous materials. International Journal of Fatigue, 20(1), 9–34.
FEMA 356. (2000). Prestandard and commentary for the seismic rehabilitation of buildings. Washington, DC: Federal Emergency Management Agency.
Khazaei, M. (2013). Investigation on dynamics nonlinear analysis of steel frames with steel dampers. Procedia Engineering, 54, 401–412.
Kim, Y. J., Ahn, T. S., Bae, J. H., & Oh, S. H. (2016). Experimental study of using cantilever type steel plates for passive energy dissipation. International Journal of Steel Structures, 16(3), 959–974.
Krawinkler, H., & Zohrei, M. (1983). Cumulative damage in steel structures subjected to earthquake ground motions. Computers and Structures, 16(1–4), 531–541.
Kuroda, M. (2002). Extremely low-cycle fatigue life prediction based on a new cumulative fatigue damage model. International Journal of Fatigue, 24(6), 699–703.
Lee, C. H., Kim, J., Kim, D. H., Ryu, J., & Ju, Y. K. (2016a). Numerical and experimental analysis of combined behavior of shear-type friction damper and non-uniform strip damper for multi-level seismic protection. Engineering Structures, 114, 75–92.
Lee, C. H., Lho, S. H., Kim, D. H., Oh, J., & Ju, Y. K. (2016b). Hourglass-shaped strip damper subjected to monotonic and cyclic loadings. Engineering Structures, 119, 122–134.
Lee, C. H., Ryu, J., Oh, J., Yoo, C. H., & Ju, Y. K. (2016c). Friction between a new low-steel composite material and milled steel for SAFE Dampers. Engineering Structures, 122, 279–295.
Lee, C. H., Woo, S. K., Ju, Y. K., Lee, D. W., & Kim, S. D. (2014). Modified fatigue model for hourglass-shaped steel strip damper subjected to cyclic loadings. Journal of Structural Engineering, 141(8), 04014206.
Mohammadi, R. K., Nasri, A., & Ghaffary, A. (2017). TADAS dampers in very large deformations. International Journal of Steel Structures, 17(2), 515–524.
Oh, S. H., Kim, Y. J., & Ryu, H. S. (2009). Seismic performance of steel structures with slit dampers. Engineering Structures, 31(9), 1997–2008.
Raschka, S. (2015). Python machine learning. Birmingham: Packt Publishing Ltd.
Tamai, H., Kondoh, K., & Hanai, M. (1998). Very-low-cycle fatigue characteristics of hysteretic damper installed in K-braced frame and its life prediction under severe seismic loading. In Proceeding of Fifth Pacific Structural Steel Conference (Vol. 1, pp. 353–358). Seoul, Korea.
Tse, K. T., Kwok, K. C., & Tamura, Y. (2012). Performance and cost evaluation of a smart tuned mass damper for suppressing wind-induced lateral-torsional motion of tall structures. Journal of Structural Engineering, 138(4), 514–525.
Usami, T., Wang, C., & Funayama, J. (2011). Low-cycle fatigue tests of a type of buckling restrained braces. Procedia Engineering, 14, 956–964.
Zhang, C., Aoki, T., Zhang, Q., & Wu, M. (2013). Experimental investigation on the low-yield-strength steel shear panel damper under different loading. Journal of Constructional Steel Research, 84, 105–113.
Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (NRF-2020R1A2C3005687, NRF-2018R1A4A1026027).
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Bae, J., Lee, CH., Park, M. et al. Modified Low-Cycle Fatigue Estimation Using Machine Learning for Radius-Cut Coke-Shaped Metallic Damper Subjected to Cyclic Loading. Int J Steel Struct 20, 1849–1858 (2020). https://doi.org/10.1007/s13296-020-00377-7
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DOI: https://doi.org/10.1007/s13296-020-00377-7