Steel and Composite Structures

  • 제16권1호
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  • Pages.1-21
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  • 2014
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
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DOI QR Code

Experimental and analytical investigations on seismic behavior of ductile steel knee braced frames

  • Zahrai, Seyed Mehdi (Center of Excellence for Engineering and Management of Civil Infrastructures, School of Civil Engineering, the University of Tehran) ;
  • Jalali, Meysam (Department of Civil Engineering, Faculty of Engineering, University of Damghan)
  • 투고 : 2011.11.11
  • 심사 : 2013.09.16
  • 발행 : 2014.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

Knee Braced Frame (KBF) is a special form of ductile eccentrically braced frame having a diagonal brace connected to a knee element, as a hysteretic damper, instead of beam-column joint. This paper first presents an experimental investigation on cyclic performance of two knee braced single span one-story frame specimens. The general test arrangement, specimen details, and most relevant results (failure modes and hysteretic curves) are explained. Some indexes to assess the seismic performance of KBFs, including ductility; response reduction factor and energy dissipation capabilities are also subsequently discussed. Experimental results indicate that the maximum equivalent damping ratios achieved by test frames are 21.8 and 23% for the specimens, prior to failure. Finally, a simplified analytical model is derived to predict the bilinear behavior of the KBFs. Acceptable conformity between analytical and experimental results proves the accuracy of the proposed model.

키워드

참고문헌

  1. AISC (2005), Seismic Provisions for Steel Buildings, AISC/ANSI Standard 341-05, American Institute of Steel Construction, Chicago, IL, USA.
  2. Abdalla, K.M., Abu-Farsakh, G.A.R. and Barakat, S.A. (2007), "Experimental investigation of force-distribution in high-strength bolts in extended end-plate connections", Steel. Compos. Struct., Int. J., 7(2), 87-103. https://doi.org/10.12989/scs.2007.7.2.087
  3. Aristizabal-ochoa, J.D. (1986), "Disposable knee bracing: improvement in seismic design of steel frames", J. Struct. Eng. ASCE, 112(7), 1544-1552. https://doi.org/10.1061/(ASCE)0733-9445(1986)112:7(1544)
  4. ASTM (2003), Standard Test Methods and Definitions for Mechanical Testing of Steel Products, ASTM International, A370-03a, American Society for Testing and Materials.
  5. Balendra, T., Lim, E.L. and Lee, S.L. (1994), "Ductile knee braced frames with shear yielding knee for seismic resistant structures", Eng. Struct., 16(4), 263-269. https://doi.org/10.1016/0141-0296(94)90066-3
  6. Balendra, T., Lim, E.L. and Liaw, C.Y. (1997), "Large-scale seismic testing of knee-braced-frame", J. Struct. Eng. ASCE, 123(1), 11-19. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:1(11)
  7. Balendra, T., Sam, M.T. and Liaw, C.Y. (1990), "Diagonal brace with ductile knee anchor for aseismic steel frame", Earthq. Eng. Struct. Dyn., 19(6), 847-858. https://doi.org/10.1002/eqe.4290190606
  8. Chan, R.W.K. and Albermani, F. (2008), "Experimental study of steel slit damper for passive energy dissipation", Eng. Struct., 30(4), 1058-1066. https://doi.org/10.1016/j.engstruct.2007.07.005
  9. Chopra, A.K. (2007), Dynamics of Structures: Theory and Applications to Earthquake Engineering, Prentice Hall, Englewood Cliffs, NJ, USA.
  10. Ciutina, A.L. and Dubina, D. (2006), "Seismic behaviour of steel beam-to-column joints with column web stiffening", Steel. Compos. Struct., Int. J., 6(6), 493-512. https://doi.org/10.12989/scs.2006.6.6.493
  11. FEMA (2000), NEHRP Recommended Seismic Design Criteria for New Steel Moment-Frame Building, FEMA Report 350, Washington, D.C., Federal Emergency Management Agency.
  12. Hsu, H.L., Juang, J.L. and Chou, C.H. (2011), "Experimental evaluation on the seismic performance of steel knee braced frame structures with energy dissipation mechanism", Steel. Compos. Struct., Int. J., 11(1), 77-91. https://doi.org/10.12989/scs.2011.11.1.077
  13. Krawinkler, H. (1978), "Shear in beam-column joints in seismic design of steel frames", Eng. J., AISC, 3(15), 82-91.
  14. Lee, K. and Bruneau, M. (2005), "Energy dissipation demand of compression members in concentrically braced frames", Steel. Compos. Struct., Int. J., 5(5), 345-358. https://doi.org/10.12989/scs.2005.5.5.345
  15. Lehman, D.E., Roeder, C.W., Herman, D., Johnson, S. and Kotulka, B. (2008), "Improved seismic performance of gusset plate connections", J. Struct. Eng. ASCE, 134(6), 890-901. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:6(890)
  16. Miranda, E. and Bertero, V.V. (1994), "Evaluation of strength reduction factors for earthquake-resistant design", Earthq. Spectra, 10(2), 357-379. https://doi.org/10.1193/1.1585778
  17. Pucinotti, R. (2006), "Cyclic mechanical model of semirigid top and seat and double web angle connections", Steel. Compos. Struct., Int. J., 6(2), 139-157. https://doi.org/10.12989/scs.2006.6.2.139
  18. Roeder, C.W. and Popov, E.P. (1978), "Eccentrically braced steel frames for earthquakes", J. Struct. Div., ASCE, 104(ST3), 391-412.
  19. Uriz, P., Filippou, F.C. and Mahin, S.A. (2008), "Model for cyclic inelastic buckling of steel braces", J. Struct. Eng. ASCE, 134(4), 619-628. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:4(619)
  20. Yoo, J.H., Lehman, D.E. and Roeder, C.W. (2008), "Influence of connection design parameters on the seismic performance of braced frames", J. Constr. Steel Res., 64(6), 607-623. https://doi.org/10.1016/j.jcsr.2007.11.005
  21. Zahrai, S.M. (2006), Behavior of Shear Link in Typical Steel Frames, BHRC Press, Building and Housing Research Center of Iran, Tehran, Iran.
  22. Zahrai, S.M. and Bruneau, M. (1999), "Cyclic testing of ductile end-diaphragms for slab-on-girder steel bridges", J. Struct. Eng. ASCE, 125(9), 987-996. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(987)

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