Structural Engineering and Mechanics

  • 제56권5호
  • /
  • Pages.855-870
  • /
  • 2015
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effects of near-fault records characteristics on seismic performance of eccentrically braced frames

  • Eskandari, Reyhaneh (Department of Civil Engineering, Chabahar Maritime University) ;
  • Vafaei, Davoud (Department of Civil Engineering, Chabahar Maritime University)
  • 투고 : 2015.05.12
  • 심사 : 2015.11.16
  • 발행 : 2015.12.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper the effects of fling-step and forward-directivity on the seismic performance of steel eccentrically braced frames (EBFs) are addressed. Four EBFs with various numbers of stories (4-, 8-, 12- and 15-story) were designed for an area with high seismic hazard. Fourteen near-fault ground motions including seven with forward-directivity and seven with fling-step effects are selected to carry out nonlinear time history (NTH) analyses of the frames. Furthermore, seven more far-field records were selected for comparison. Findings from the study reveal that the median maximum links rotation of the frames subjected to three set of ground motions are in acceptable range and the links completely satisfy the requirement stated in FEMA 356 for LS performance level. The arrival of the velocity pulse in a near-fault record causes few significant plastic deformations, while many reversed inelastic cycles result in low-cycle fatigue damage in far-fault records. Near-fault records in some cases are more destructive and the results of these records are so dispersed, especially the records having fling-step effects.

키워드

참고문헌

  1. AISC (2005), Seismic Provisions for Structural Steel Buildings.
  2. AISC (2005), Specification for Structural Steel Buildings.
  3. Alavi, B. and Krawinkler, H. (2004), "Strengthening of moment-resisting frame structures against near-fault ground motion effects", Earthq. Eng. Struct. Dyn., 33(6), 707-722. https://doi.org/10.1002/eqe.370
  4. American Society of Civil Engineers (2010), Minimum Design Loads for Buildings and Other Structures. ASCE/SEI 7-10.
  5. Champion, C. and Liel, A. (2012), "The effect of near-fault directivity on building seismic collapse risk", Earthq. Eng. Struct. Dyn., 41(10), 1391-1409. https://doi.org/10.1002/eqe.1188
  6. Chao, S.H. and Goel, S. (2005), "Performance-based seismic design of eccentrically braced frames using target drift and yield mechanism as performance criteria", Report UMCEE-05-05, University of Michigan, Ann Arbor, Mich.
  7. Charney, F. (2008), "Unintended consequences of modeling damping in Structures", J. Struct. Eng., 134(4), 581-592. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:4(581)
  8. Daneshmand, A. and Hosseini Hashemi, B. (2012), "Performance of intermediate and long links in eccentrically braced frames", J. Constr. Steel Res., 70(0), 167-176. https://doi.org/10.1016/j.jcsr.2011.10.011
  9. Dicleli, M. and Mehta, A. (2007), "Effect of near-fault ground motion and damper characteristics on the seismic performance of chevron braced steel frames", Earthq. Eng. Struct. Dyn., 36(7), 927-948. https://doi.org/10.1002/eqe.662
  10. Engelhardt, M.D. and Popov, E.P. (1989), "On design of eccentrically braced frames", Earthq. Spectra, 5(3), 495-511. https://doi.org/10.1193/1.1585537
  11. Gerami, M. and Abdollahzadeh, D. (2015), "Vulnerability of steel moment-resisting frames under effects of forward directivity", Struct. Des. Tall Spec. Build., 24(2), 97-122. https://doi.org/10.1002/tal.1156
  12. Gerami, M. and Sivandi-Pour, A. (2014), "Performance-based seismic rehabilitation of existing steel eccentric braced buildings in near fault ground motions", Struct. Des. Tall Spec. Build., 23(12), 881-896. https://doi.org/10.1002/tal.1088
  13. Ghobarah, A. and Ramadan, T. (1991), "Seismic analysis of links of various lengths in eccentrically braced frames", Can. J. Civil Eng., 18(1), 140-148. https://doi.org/10.1139/l91-016
  14. Ghodrati Amiri, G., Razeghi, H. and Tajik Davoudi, A. (2011), "The effect of fling step and forward directivity on the seismic response of MSSS bridges", Tran. Res. J., 1(1), 9-21.
  15. Hamidi Jamnani, H., Karbassi, A. and Lestuzzi, P. (2013), "Fling-step effect on the seismic behavior of high-rise RC buildings during the Christchurch earthquake", 2013 NZSEE Conference, Wellington, New Zealand.
  16. Huang, L., Tan, H. and Yan, L. (2014), "Seismic behavior of chevron braced reinforced concrete spatial frame", Mater. Struct., 48(12), 4005-4018. https://doi.org/10.1617/s11527-014-0459-4
  17. Iervolino, I. and Cornell, C.A. (2008), "Probability of occurrence of velocity pulses in near-source ground motions", Bull. Seismol. Soc. Am., 98(5), 2262-2277. https://doi.org/10.1785/0120080033
  18. Kalkan, E. and Kunnath, S.K. (2006), "Effects of fling step and forward directivity on seismic response of buildings", Earthq. Spectra, 22(2), 367-390. https://doi.org/10.1193/1.2192560
  19. Kasai, K. and Popov, E. (1986), "General behavior of WF steel shear link beams", J. Struct. Eng., 112(2), 362-382. https://doi.org/10.1061/(ASCE)0733-9445(1986)112:2(362)
  20. Koboevic, S. and David, S.O. (2010), "Design and seismic behaviour of taller eccentrically braced frames", Can. J. Civil Eng., 37(2), 195-208. https://doi.org/10.1139/L09-131
  21. Kusyilmaz, A. and Topkaya, C. (2013), "Design overstrength of steel eccentrically braced frames", Int. J. Steel Struct., 13(3), 529-545. https://doi.org/10.1007/s13296-013-3012-3
  22. Kusyilmaz, A. and Topkaya, C. (2015), "Fundamental periods of steel eccentrically braced frames", Struct. Des. Tall Spec. Build., 24(2), 123-140. https://doi.org/10.1002/tal.1157
  23. Malhotra, P.K. (1999), "Response of buildings to near-field pulse-like ground motions", Earthq. Eng. Struct. Dyn., 28(11), 1309-1326. https://doi.org/10.1002/(SICI)1096-9845(199911)28:11<1309::AID-EQE868>3.0.CO;2-U
  24. Mazzoni, S., McKenna, F., Scott, M. and Fenves, G. (2007), "OpenSees Command Language Manual".
  25. Menegotto, M. and Pinto, P. (1973), "Method of analysis for cyclically loaded reinforced concrete plane frames including changes in geometry and non-elastic behavior of elements under combined normal force and bending", Proceedings of the LABSE, symposium on resistance and ultimate deformability of structures acted on by well defined repeated loads.
  26. Mortezaei, A., Ronagh, H.R. and Kheyroddin, A. (2010), "Seismic evaluation of FRP strengthened RC buildings subjected to near-fault ground motions having fling step", Compos. Struct., 92(5), 1200-1211. https://doi.org/10.1016/j.compstruct.2009.10.017
  27. Okazaki, T., Engelhardt, M., Nakashima, M. and Suita, K. (2006), "Experimental performance of link-to-column connections in eccentrically braced frames", J. Struct. Eng., 132(8), 1201-1211. https://doi.org/10.1061/(ASCE)0733-9445(2006)132:8(1201)
  28. Okazaki, T. and Engelhardt, M.D. (2007), "Cyclic loading behavior of EBF links constructed of ASTM A992 steel", J. Constr. Steel Res., 63(6), 751-765. https://doi.org/10.1016/j.jcsr.2006.08.004
  29. Okazaki, T., Engelhardt, M.D., Drolias, A., Schell, E., Hong, J.K. and Uang, C.M. (2009), "Experimental investigation of link-to-column connections in eccentrically braced frames", J. Constr. Steel Res., 65(7), 1401-1412. https://doi.org/10.1016/j.jcsr.2009.02.003
  30. Ozhendekci, D. and Ozhendekci, N. (2008), "Effects of the frame geometry on the weight and inelastic behaviour of eccentrically braced chevron steel frames", J. Constr. Steel Res., 64(3), 326-343. https://doi.org/10.1016/j.jcsr.2007.07.009
  31. Popov, E.P., Ricles, J.M. and Kasai, K. (1992), "Methodology for optimum EBF link design", Proceedings of the Earthquake Engineering, Tenth World Conference, Balkema, Rotterdam.
  32. Richards, P. and Uang, C. (2005), "Effect of flange width-thickness ratio on eccentrically braced frames link cyclic rotation capacity", J. Struct. Eng., 131(10), 1546-1552. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:10(1546)
  33. Richards, P. and Uang, C. (2006), "Testing protocol for short links in eccentrically braced frames", J. Struct. Eng., 132(8), 1183-1191. https://doi.org/10.1061/(ASCE)0733-9445(2006)132:8(1183)
  34. Rides, J. and Popov, E. (1994), "Inelastic link element for EBF seismic analysis", J. Struct. Eng., 120(2), 441-463. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:2(441)
  35. Soleimani Amiri, F., Ghodrati Amiri, G. and Razeghi, H. (2013), "Estimation of seismic demands of steel frames subjected to near-fault earthquakes having forward directivity and comparing with pushover analysis results", Struct. Des. Tall Spec. Build., 22(13), 975-988. https://doi.org/10.1002/tal.747
  36. Somerville, P. (1998), "Development of an improved representation of near-fault ground motions", Proceedings, Seminar on Utilization of Strong-Motion Data, Oakland, CA.
  37. Tsai, K.C., Yang, Y.F. and Lin, J.L. (1993), "Seismic eccentrically braced frames", Struct. Des. Tall Spec. Build., 2(1), 53-74. https://doi.org/10.1002/tal.4320020105
  38. Uriz, P., Filippou, F. and Mahin, S. (2008), "Model for cyclic inelastic buckling of steel braces", J. Struct. Eng., 134(4), 619-628. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:4(619)
  39. Vafaei, D. and Eskandari, R. (2015a), "Seismic performance of steel mega braced frames equipped with shape-memory alloy braces under near-fault earthquakes", Struct. Des. Tall Spec. Build., doi: 10.1002/tal.1225.
  40. Vafaei, D. and Eskandari, R. (2015b), "Seismic response of mega buckling-restrained braces subjected to fling-step and forward-directivity near-fault ground motions", Struct. Des. Tall Spec. Build., 24(9), 672-686. https://doi.org/10.1002/tal.1205
  41. Viswanath, K.G., Prakash, K.B. and Desai, A. (2010), "Seismic analysis of steel braced reinforced concrete frames", Int. J. Civil Struct. Eng., 1(1), 114-122.

피인용 문헌

  1. A review of research on steel eccentrically braced frames vol.128, 2017, https://doi.org/10.1016/j.jcsr.2016.07.032
  2. Influence of concurrent horizontal and vertical ground excitations on the collapse margins of non-ductile RC frame buildings vol.59, pp.4, 2016, https://doi.org/10.12989/sem.2016.59.4.653
  3. Seismic Fragility of Base-Isolated Nuclear Power Plant Considering Effects of Near-Fault Ground Motions vol.18, pp.7, 2018, https://doi.org/10.9798/KOSHAM.2018.18.7.315
  4. Nonlinear static and dynamic behavior of reinforced concrete steel-braced frames vol.12, pp.2, 2017, https://doi.org/10.12989/eas.2017.12.2.191
  5. Earthquake effects on the energy demand of tall reinforced concrete walls with buckling-restrained brace outriggers vol.63, pp.4, 2015, https://doi.org/10.12989/sem.2017.63.4.521
  6. Characterization of Near-Fault Effects on Potential Cumulative Damage of Reinforced Concrete Bridge Piers vol.17, pp.10, 2015, https://doi.org/10.1007/s40999-019-00428-z
  7. Seismic response of dual structures comprised by Buckling-Restrained Braces (BRB) and RC walls vol.72, pp.4, 2015, https://doi.org/10.12989/sem.2019.72.4.443
  8. A comparison of three performance-based seismic design methods for plane steel braced frames vol.18, pp.1, 2015, https://doi.org/10.12989/eas.2020.18.1.027
  9. Optimum location of second outrigger in RC core walls subjected to NF earthquakes vol.38, pp.6, 2015, https://doi.org/10.12989/scs.2021.38.6.671
  10. External GFRP confinement to decrease near-fault earthquake damage of reinforced concrete structures considering soil-structure interaction vol.34, pp.None, 2015, https://doi.org/10.1016/j.istruc.2021.08.027