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Pushover analysis of gabled frames with semi-rigid connections

  • Shooshtari, Ahmad (Department of Civil Engineering, Engineering Faculty, Ferdowsi University of Mashhad) ;
  • Moghaddam, Sina Heyrani (Department of Civil Engineering, Engineering Faculty, Ferdowsi University of Mashhad) ;
  • Masoodi, Amir R. (Department of Civil Engineering, Engineering Faculty, Ferdowsi University of Mashhad)
  • Received : 2014.08.15
  • Accepted : 2014.12.12
  • Published : 2015.06.25

Abstract

The nonlinear static analysis of structure, which is under the effect of lateral loads and provides the capacity curve of the structure, is defined as a push-over analysis. Ordinarily, by using base shear and the lateral displacement of target point, the capacity curve is obtained. The speed and ease of results interpretation in this method is more than that of the NRHA responses. In this study, the nonlinear static analysis is applied on the semi-rigid steel gabled frames. It should be noted that the members of this structure are analyzed as a prismatic beam-column element in two states of semi-rigid connections and supports. The gabled frame is modeled in the OpenSees software and analyzed based on the displacement control at the target point. The lateral displacement results, calculated in the top level of columns, are reported. Furthermore, responses of the structure are obtained for various support conditions and the rigidity of nodal connections. Ultimately, the effect of semi-rigid connections and supports on the capacity and the performance point of the structure are presented in separated graphs.

Keywords

References

  1. ATC-40 (1996), Seismic Evaluation and Retrofit of Concrete Buildings; Applied Technology Council, Redwood City, CA, USA.
  2. Bracci, J.M., Kunnath, S.K. and Reinhorn, A.M. (1997), "Seismic Performance and Retrofit Evaluation of Reinforced Concrete Structures", J. Struct. Eng. ASCE, 123(1), 3-10. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:1(3)
  3. California, Regents of the University (2000), http://peer.berkeley.edu/smcat
  4. Chan, S.L. and Ho, G.W.M. (1994), "Nonlinear Vibration Analysis of Steel Frames with Semirigid Connections", J. Struct. Eng., 120(4), 1075-1087. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:4(1075)
  5. Du, W., Sun, Z., Zhang, H. and Yu, F. (2012), "Design and Analysis of a Light-Weight Steel Gabled Frames Structure", Appl. Mech. Mater., 238(1), 572-575. https://doi.org/10.4028/www.scientific.net/AMM.238.572
  6. Fajfar, P. and Gaspersic, P. (1996), "The N2 Method for the Seismic Damage Analysis of RC Buildings", Earthq. Eng. Struct. Dyn., 25(1), 31-46. https://doi.org/10.1002/(SICI)1096-9845(199601)25:1<31::AID-EQE534>3.0.CO;2-V
  7. Foundation, N.S. ($\copyright$2006), opensees-support@berkeley.edu.
  8. Fu, Z., Ohi, K., Takanashi, K. and Lin, X. (1998), "Seismic behavior of steel frames with semi-rigid connections and braces", J. Constr. Steel Res., 46(1-3), 440-441. https://doi.org/10.1016/S0143-974X(98)00028-5
  9. LTD, SeismoSoft (2002), SeismoSpect, Pavia, Italy.
  10. Monforton, G.R. and Wu, T.S. (1963), "Matrix Analysis of Semi-Rigid Connected Steel Frames ", J. Struct. Div. (ASCE), 89(6), 13-42.
  11. Mwafy, A.M. and Elnashai, A.S. (2001), "Static pushover versus dynamic collapse analysis of RC buildings", J. Eng. Struct., 23(5), 407-424. https://doi.org/10.1016/S0141-0296(00)00068-7
  12. Nguyen, P.C. and Kim, S.E. (2013), "Nonlinear elastic dynamic analysis of space steel frames with semi-rigid connections", J. Constr. Steel Res., 84(1), 72-81. https://doi.org/10.1016/j.jcsr.2013.02.004
  13. Pachenari, A., Keramati, A. and Pachenari, Z. (2013), "Investigation of progressive collapse in intermediate RC frame structures", Struct. Des. Tall Special Build., 22(2), 116-125. https://doi.org/10.1002/tal.663
  14. Rodrigues, F.C., Saldanha, A.C. and Pfei, M.S. (1998), "Non-linear analysis of steel plane frames with semirigid connections", J. Constr. Steel Res., 46(1-3), 94-97. https://doi.org/10.1016/S0143-974X(98)00105-9
  15. Saiidi, M. and Sozen, M.A. (1981), "Simple nonlinear seismic analysis of R/C structures", J. Struct. Div. ASCE, 107(5), 937-951.
  16. Sekulovic, M., Salatic, R. and Nefovska, M. (2002), "Dynamic analysis of steel frames with flexible connections", J. Comput. Struct., 80(11), 935-955. https://doi.org/10.1016/S0045-7949(02)00058-5
  17. Shi, G. and Atluri, S.N. (1989), "Static and dynamic analysis of space frames with nonlinear flexible connections", Int. J. Numer. Methods Eng., 28(11), 2635-2650. https://doi.org/10.1002/nme.1620281110
  18. Tsai, M. and Lin, B. (2008), "Investigation of progressive collapse resistance and inelastic response for an earthquake-resistant RC building subjected to column failure", J. Eng. Struct., 30(12), 3619-3628. https://doi.org/10.1016/j.engstruct.2008.05.031
  19. Wang, Y., Liu, Y.J. and Xu, Y.F. (2011), "Stiffness analysis on semi-rigid joints in gabled frames", Adv. Mater. Res., 243-249(1), 120-123. https://doi.org/10.4028/www.scientific.net/AMR.243-249.120

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