Abstract
A parametric computational study is conducted to investigate the shear yielding, flexural yielding, and lateral torsional buckling limit states for butterfly-shaped links. After validating the accuracy of the finite element modeling approach against previous experiments, 112 computational models with different geometrical properties were constructed and analyzed including consideration of initial imperfections. The resulting yielding moment, corresponding critical shear force, the accumulation of plastic strains through the length of links as well as the amount of energy dissipated are investigated.
The results indicate that as the shape of the butterfly-shaped links become too straight or conversely too narrow in the middle, peak accumulated plastic strains increase. The significant effect of plate thickness on the buckling limit state is examined in this study. Results show that overstrength for these links (peak force divided by yield force) is between 1.2 and 4.5, with straight links producing larger overstrength. Additionally, proportioning the links to delay buckling, and designing the links to yield in the flexural mode are shown to improve energy dissipation.
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References
Martínez-Rueda J E. On the evolution of energy dissipation devices for seismic design. Earthquake Spectra, 2002, 18(2): 309–346
Hitaka T, Matsui C. Seismic performance of Steel Shear Wall with Slits integrated with multi story composite moment frame. In: The 5th International Conference on Behavior of Steel Structures in Seismic Areas. Yokohama, 2006
Ma X, Borches E, Pena A, Krawinkler H, Billington S, Dierlein G. Design and Behavior of Steel Shear Plates with Opening as Energy Dissipating Fuses. The John A. Blume Earthquake Engineering Center, Report No. 173, 2011
Lee C K, Ju Y, Min J, Lho S, Kim S. Non-uniform steel strip dampers subjected to cyclic loadings. Engineering Structures, 2015, 99(15): 192–204
Luth G, Krawinkler H, McDonald B, Park M. USC School of cinema: An example of reparable performance based design. In: SEAOC 2008 convention proceedings, 2008
Farzampour A. Evaluating shear links for use in seismic structural fuses. Dissertation for the Doctoral Degree. Blacksburg VA: Virginia Tech, 2019
Kobori T, Miura Y, Fukuzawa E, Yamanda T, Arita T, Takenaka Y, Miyagwa N, Tanaka N, Fukumoto T. Development and application of hysteresis steel dampers. In: Earthquake Engineering the 10th Conference. Rotterdam: Belkema, 1992
Farzampour A, Eatherton M. Simultaneous consideration of shear and flexural stresses for butterfly-shaped dampers design. In: International Conference on Materials Engineering and Applications. Hongkong, China: ICMEA, 2018
Malakoutian M, Berman J W, Dusicka P, Lopes A. Seismic performance and design of linked Column Frame System (LCF). In: The 15th World Conference on Earthquake Engineering. Lisbon: Sociedade Portuguesa de Engenharia Sismica (SPES), 2012
Oh S H, Kim Y J, Ryu H S. Seismic performance of steel structures with slit dampers. Engineering Structures, 2009, 31(9): 1997–2008
Kawai Y, Ono T, Sato A, Kondo M. Allowable design formula for steel sheet shear walls with burring holes. In: Proceedings of the 7th International Conference. Baltimore, Maryland: Coupled Instabilities in Metal Structures (CIMS), 2016
Simulia. Dassault Systems Simulia Corporation ABAQUS-6.14. Johnston, RI, 2014
Farzampour A, Eatherton M. Lateral torsional buckling of butterfly-shaped shear links. In: SSRC Annual Stability Conference, Proceedings of Annual Stability Conference Structural Stability Research Council. San Antonio, 2017
Farzampour A, Eatherton M. Parametric study on butterfly-shaped shear links with various geometries. In: The 11th National Conference on Earthquake Engineering. Los Angles: Earthquake Engineering Research Institute, 2018
Farzampour A, Eatherton M. Investigating limit states for butterfly-shaped and straight shear links. In: The 16th European Conference on Earthquake Engineering. Thessaloniki: The European Association for Earthquake Engineering, 2018
American Institute of Steel Construction. AISC 341-16, Seismic Provisions for Structural Steel Buildings, 2016
Chopra A. Dynamics of Structures: Theory and Applications to Earthquake Engineering. 4th ed. Berkeley: Prentice Hall, 2012
Lee C, Kim S, Kim D, Ryu J K, Ju Y. Numerical and experimental analysis of combined behavior of shear type friction damper and non-uniform strip damper for multi-level seismic protection. Engineering Structures, 2016, 114: 75–92
Teruna D A, Majid T, Budiono B. Experimental study of hysteretic steel damper for energy dissipation capacity. Advances in Civil Engineering, 2015, 2015: 1–12
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This material is based upon the work supported by the National Science Foundation (Grant No. CMMI-1453960). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or other sponsors. The Advanced Research Computing (ARC) facilities at Virginia Tech provided computational resources and technical support for this project.
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Farzampour, A., Eatherton, M.R. Parametric computational study on butterfly-shaped hysteretic dampers. Front. Struct. Civ. Eng. 13, 1214–1226 (2019). https://doi.org/10.1007/s11709-019-0550-6
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DOI: https://doi.org/10.1007/s11709-019-0550-6