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Evaluation of seismic criteria of built-up special concentrically braced frames

  • Izadi, Amin (Department of Civil and Environmental Engineering, Tarbiat Modares University) ;
  • Aghakouchak, Ali A. (Department of Civil and Environmental Engineering, Tarbiat Modares University)
  • 투고 : 2018.01.13
  • 심사 : 2018.07.28
  • 발행 : 2018.10.10

초록

In this paper, seismic provisions related to built-up special concentrically braced frames (BSCBFs) are investigated under cyclic loading using non-linear finite element analysis of a single-bay single-story frame. These braces, which contain double angle and double channel brace sections, are considered in two types of single diagonal and X-braced frames. The results of this study show that current seismic provisions such as observing the 0.4 ratio for slenderness ratio of individual elements between stitch connectors are conservative in BSCBFs, and can be increased according to the type of braces. Furthermore, such increments will lead to decreasing or remaining the current middle protected zone requirements of each BSCBFs. Failure results of BSCBFs, which are related to the plastic equivalent strain growth of members and ductility capacity of the models, show that the behaviors of double channel back-to-back diagonal braces are more desirable than those of similar face-to-face ones. Also, for double angle diagonal braces, results show that the failure of back-to-back BSCBFs occurs faster in comparison with face-to-face similar braces. In X-braced frames, cyclic and failure behaviors of built-up face-to-face models are more desirable than similar back-to-back braces in general.

키워드

참고문헌

  1. AISC (2010a), ANSI/AISC 341-10, Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction; Chicago, IL, USA.
  2. AISC (2010b), ANSI/AISC 360-10, Specification for Structural Steel Buildings, American Institute of Steel Construction; Chicago, IL, USA.
  3. AISC (2016), ANSI/AISC 341-16, Seismic Provisions for Structural Steel Buildings, American Institute of Steel Construction; Chicago, IL, USA.
  4. Alipour, M. and Aghakouchak, A. (2013), "Numerical analysis of the nonlinear performance of concentrically braced frames under cyclic loading", Int. J. Steel Struct., 13(3), 401-419. https://doi.org/10.1007/s13296-013-3002-5
  5. Aslani, F. and Goel, S.C. (1992), "Stitch spacing and end fixity in seismic-resistant boxed angle braces", J. Struct. Eng., 118(10), 2872-2889. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:10(2872)
  6. Astaneh-Asl, A. (1998), "Seismic behavior and design of gusset plates", Steel TIPS Report.
  7. Astaneh-Asl, A., Goel, S.C. and Hanson, R.D. (1982), "Cyclic behavior of double angle bracing members with end gusset plates", Research Report No. UMEE82R7; Department of Civil Engineering, The University of Michigan, Ann Arbor, MI, USA.
  8. Astaneh-Asl, A., Goel, S.C. and Hanson, R.D. (1985), "Cyclic outof-plane buckling of double-angle bracing", J. Struct. Eng., 111(5), 1135-1153. https://doi.org/10.1061/(ASCE)0733-9445(1985)111:5(1135)
  9. ATC-24 (1992), Guidelines for Cyclic Seismic Testing of Components of Steel Structures for Buildings, Applied Technology Council.
  10. D'Aniello, M., La Manna Ambrosino, G., Portioli, F. and Landolfo, R. (2013), "Modelling aspects of the seismic response of steel concentric braced frames", Steel Compos. Struct., Int. J., 15(5), 539-66. https://doi.org/10.12989/scs.2013.15.5.539
  11. Fell, B.V. (2008), Large-scale Testing and Simulation of Earthquake-induced Ultra-low Cycle Fatigue in Bracing Members Subjected to Cyclic Inelastic Buckling, University of California Davis, CA, USA.
  12. Fell, B.V., Kanvinde, A.M., Deierlein, G.G. and Myers, A.T. (2009), "Experimental investigation of inelastic cyclic buckling and fracture of steel braces", J. Struct. Eng., 135(1), 19-32. https://doi.org/10.1061/(ASCE)0733-9445(2009)135:1(19)
  13. Haddad, M. (2015), "Concentric tubular steel braces subjected to seismic loading: Finite element modeling", J. Constr. Steel Res., 104, 155-166. https://doi.org/10.1016/j.jcsr.2014.10.013
  14. Haddad, M. (2017), "Cyclic behavior and finite element modeling of wide flange steel bracing members", Thin-Wall. Struct., 111, 65-79. https://doi.org/10.1016/j.tws.2016.11.006
  15. Hadianfard, M.A. and Khakzad, A.R. (2016), "Inelastic buckling and post-buckling behavior of gusset plate connections", Steel Compos. Struct., Int. J., 22(2), 411-427. https://doi.org/10.12989/scs.2016.22.2.411
  16. Hassan, M.S., Salawdeh, S. and Goggins, J. (2018), "Determination of geometrical imperfection models in finite element analysis of structural steel hollow sections under cyclic axial loading'', J. Constr. Steel Res., 141, 189-203.
  17. Hawileh, R.A., Abed, F., Abu-Obeidah, A.S. and Abdalla, J.A. (2012), "Experimental investigation of inelastic buckling of built-up steel columns", Steel Compos. Struct., Int. J., 13(3), 295-308.
  18. 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
  19. Jain, A.K. and Goel, S.C. (1978), "Hysteresis models for steel members subjected to cyclic buckling or cyclic end moments and buckling", User's guide for DRAIN-2D: EL9 and EL10.
  20. Johnson, S.M. (2005), "Improved seismic performance of special concentrically braced frames", Ph.D. Dissertation; University of Washington, Washington, USA.
  21. Kanyilmaz, A. (2017), "Role of compression diagonals in concentrically braced frames in moderate seismicity: A full scale experimental study", J. Constr. Steel Res., 133, 1-18. https://doi.org/10.1016/j.jcsr.2017.01.023
  22. Lai, J.W., Chen, C.H. and Mahin, S.A. (2010), "Experimental and analytical performance of concentrically braced steel frames", In Structures Congress, Orlando, FL, United States, May.
  23. Lee, K. and Bruneau, M. (2005), "Energy dissipation of compression members in concentrically braced frames: Review of experimental data", J. Struct. Eng., 131(4), 552-559.
  24. 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)
  25. Metelli, G. (2013), "Theoretical and experimental study on the cyclic behavior of X braced steel frames", Eng. Struct., 46, 763-773. https://doi.org/10.1016/j.engstruct.2012.08.021
  26. Shaback, B. and Brown, T. (2003), "Behavior of square hollow structural steel braces with end connections under reversed cyclic axial loading", Can. J. Civil Eng., 30(4), 745-753. https://doi.org/10.1139/l03-028
  27. Tirca, L. and Chen, L. (2014), "Numerical simulation of inelastic cyclic response of HSS braces upon fracture", Adv. Steel Constr., 10(4), 442-462.
  28. Tremblay, R. (2002), "Inelastic seismic response of steel bracing members", J. Constr. Steel Res., 58(5), 665-701. https://doi.org/10.1016/S0143-974X(01)00104-3
  29. Yoo, J.H. (2006), "Analytical investigation on the seismic performance of special concentrically braced frames", Ph.D. Dissertation; University of Washington, Washington, USA.