Structural Engineering and Mechanics

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Cyclic testing of innovative two-level control system: Knee brace & vertical link in series in chevron braced steel frames

  • Rousta, Ali Mohammad (School of Civil Engineering, College of Engineering, The University of Tehran) ;
  • Zahrai, Seyed Mehdi (Center of Excellence for Engineering and Management of Civil Infrastructures, School of Civil Engineering, College of Engineering, The University of Tehran)
  • Received : 2017.04.12
  • Accepted : 2017.07.13
  • Published : 2017.11.10
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Abstract

For further development of passive control systems to dissipate larger seismic energy and prevent the structures from earthquake losses, this paper proposes an innovative two-level control system to improve behavior of chevron braced steel frames. Combining two Knee Braces, KB, and a Vertical Link Beam, VLB, in a chevron braced frame, this system can reliably sustain main shock and aftershocks in steel structures. The performance of this two-level system is examined through a finite element analysis and quasi-static cyclic loading test. The cyclic performances of VLB and KBs alone in chevron braced frames are compared with that of the presented two-level control system. The results show appropriate performance of the proposed system in terms of ductility and energy dissipation in two different excitation levels. The maximum load capacity of the presented system is about 30% and 17% higher than those of the chevron braced frames with KB and VLB alone, respectively. In addition, the maximum energy dissipation of the proposed system is about 78% and 150% higher than those of chevron braced frames with VLB and KB respectively under two separate levels of lateral forces caused by different probable seismic excitations. Finally, high performance under different earthquake levels with competitive cost and quick installation work for the control system can be found as main advantages of the presented system.

Keywords

Acknowledgement

Supported by : Iran National Science Foundation (INSF), University of Tehran

References

  1. American Institute of Steel Construction, AISC2005, Steel Construction Manual, 13th Edition, Chicago.
  2. ANSYS Inc., ANSYS User‟s Manual, revision 13.0.
  3. 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
  4. Balendra, T., Yu, C.H. and Lee, F.L. (2001), "An economical structural system for wind and earthquake loads", Eng. Struct., 23(5), 491-501. https://doi.org/10.1016/S0141-0296(00)00061-4
  5. Chan, R.W., Albermani, F. and Williams, M.S. (2009), "Evaluation of yielding shear panel device for passive energy dissipation", J. Constr. Steel Res., 65(2), 260-268. https://doi.org/10.1016/j.jcsr.2008.03.017
  6. Cheraghi, A. and Zahrai, S.M. (2016), "Innovative multi-level control with concentric pipes along brace to reduce seismic response of steel frames", J. Constr. Steel Res., 127(2), 120-135. https://doi.org/10.1016/j.jcsr.2016.07.024
  7. Cheraghi, A. and Zahrai, S.M. (2017), "Cyclic testing of multilevel pipe in pipe damper", J. Earthq. Eng. (in Press)
  8. Christopoulos, C., Filiatrault, A. and Bertero, V.V. (2006), Principles of Passive Supplemental Damping and Seismic Isolation, Iuss Press.
  9. Uniform Building Code (1997), International Building Code, International Code Council, USA.
  10. Daneshmand, A. and Hoseini Hashemi, B. (2012), "Performance of intermediate and long links in eccentrically braced frames", J. Constr. Steel Res., 70(4), 167-176. https://doi.org/10.1016/j.jcsr.2011.10.011
  11. Eljajeh, Y. and Petkovski, M. (2015), "Centralized semi-active control of post-tensioned steel frames", Earthq. Eng. Struct. Dyn., 44(1), 79-100. https://doi.org/10.1002/eqe.2460
  12. Esteki, K., Bagchi, A. and Sedaghati, R. (2015), "Semi-active control of seismic response of a building using MR fluid-based tuned mass damper", Smart Struct. Syst., 16(5), 807-833. https://doi.org/10.12989/sss.2015.16.5.807
  13. Hoseini Hashemi, B. and Alirezaei, M., (2015), "Experimental investigation of a combined system in steel braced frames", J. Seismol. Earthq. Eng., 17(3), 160-181.
  14. Hanson, R.D. and Soong, T.T. (2001), Seismic Design with Supplemental Energy Dissipation Devices, Earthquake Engineering Research Institute.
  15. Hochrainer, M.J. (2015), "Active tuned liquid column gas damper in structural control", Dyn. Civil Struct., 2, 467-473.
  16. Hosseini Hashemi, B. and Ahmady Jazany, R. (2012), "Study of connection detailing on SMRF seismic behavior for unequal beam depths", J. Constr. Steel Res., 68(1), 150-164. https://doi.org/10.1016/j.jcsr.2011.08.005
  17. Hsu, H., Juang, J. and Chou, C. (2011), "Experimental evaluation on the seismic performance of steel knee braced frame structures with energy dissipation mechanism", Steel Compos. Struct., 11(1), 77-91. https://doi.org/10.12989/scs.2011.11.1.077
  18. Jouneghani, H.G., Haghollahi, A., Moghaddam, H. and Moghadam, A.S. (2016), "2099. Study of the seismic performance of steel frames in the elliptic bracing", J. Vibroeng., 18(5), 134-145.
  19. Ke, K. and Yam, M.C.H. (2016), "Energy-factor-based damagecontrol evaluation of steel MRF systems with fuses", Steel Compos. Struct., 22(3), 589-611. https://doi.org/10.12989/scs.2016.22.3.589
  20. Kim, H.G., Yoshitomi, S. Tsuji, M. and Takewaki, I. (2012), "New three-layer-type hysteretic damper system and its damping capacity", Earthq. Struct., 3(6), 821-838. https://doi.org/10.12989/eas.2012.3.6.821
  21. Leon, R., Perea, T., Hajjar, J. and Denavit, M. (2011), "Concretefilled tubes columns and beam-columns, a database for the AISC 2005 and 2010 specifications", Festschrift Gerhard Hanswille, 20, 203-212.
  22. Li, F.M. and Liu, C.C. (2015), "Vibration analysis and active control for frame structures with piezoelectric rods using spectral element method", Arch. Appl. Mech., 85(5), 675-690. https://doi.org/10.1007/s00419-014-0980-5
  23. Mofid, M. and Lotfollahi, M. (2006), "On the characteristics of new ductile knee bracing systems", J. Constr. Steel Res., 62(3), 271-281. https://doi.org/10.1016/j.jcsr.2005.07.005
  24. Mori, C., Sorace, S. and Terenzi, G. (2015), "Seismic assessment and retrofit of two heritage-listed R/C elevated water storage tanks", Soil Dyn. Earthq. Eng., 77, 123-136. https://doi.org/10.1016/j.soildyn.2015.05.007
  25. Omidi, E. and Mahmoodi, N. (2015), "Hybrid positive feedback control for active vibration attenuation of flexible structures", IEEE/ASME Tran. Mech., 20(4) 145167.
  26. Ravindra, M.K. and Galambos, T.V. (1978), "Load and resistance factor design for steel", J. Struct. Div., 104(9), 1337-1353.
  27. Roeder, C.W. and Popov, E. P. (1978), "Eccentrically braced steel frames for earthquakes", J. Struct. Div., 104(3), 393-412.
  28. Saaed, T.E., Nikolakopoulos, G., Jonasson, J.E. and Hedlund, H. (2015), "A state-of-the-art review of structural control systems", J. Vib. Control, 21(5), 919-937. https://doi.org/10.1177/1077546313478294
  29. Saeedi, F., Shabakhty, N. and Mousavi, S.R. (2016), "Seismic assessment of steel frames with triangular-plate added damping and stiffness devices", J. Constr. Steel Res., 125, 15-25. https://doi.org/10.1016/j.jcsr.2016.06.011
  30. Shakibabarough, A., Valinejadshoubi, M. and Bagchi, A. (2016), "Effects of damper locations and base isolators on seismic response of a building frame", Int. J. Civil Environ. Struct. Constr. Arch. Eng., 10(6), 674-679.
  31. Silwal, B., Michael, R.J. and Ozbulut, O.E. (2015), "A superelastic viscous damper for enhanced seismic performance of steel moment frames", Eng. Struct., 105, 152-164. https://doi.org/10.1016/j.engstruct.2015.10.005
  32. Sun, S., Yang, J., Li, W. Deng, H. Du, H., Alici, G. and Yan, T. (2016), "An innovative MRE absorber with double natural frequencies for wide frequency bandwidth vibration absorption", Smart Mater. Struct., 25(5), 055035. https://doi.org/10.1088/0964-1726/25/5/055035
  33. Takewaki, I. (2011). Building Control with Passive Dampers, Optimal Performance-based Design for Earthquakes, John Wiley & Sons.
  34. Vargas, R. and Bruneau, M. (2007), "Effect of supplemental viscous damping on the seismic response of structural systems with metallic dampers", J. Struct. Eng., 133(10), 1434-1444. https://doi.org/10.1061/(ASCE)0733-9445(2007)133:10(1434)
  35. Zahrai, S.M. (2015), "Cyclic testing of chevron braced steel frames with IPE shear panels", Steel Compos. Struct., 19(5), 1167-1184. https://doi.org/10.12989/scs.2015.19.5.1167
  36. Zahrai, S.M. and Cheraghi, A. (2017), "Reducing seismic vibrations of typical steel frames using new multi-level pipe damper", Int. J. Steel Struct., 17(3), 983-998. https://doi.org/10.1007/s13296-017-9010-0
  37. Zahrai, S.M. and Moslehi Tabar, A. (2006), "Cyclic behaviour of steel braced frames having shear panel system", Asian J. Civil Eng. (Build. Hous.), 7(1), 13-26.
  38. Zahrai, S.M. and Moslehi Tabar, A. (2013), "Analytical study on cyclic behavior of chevron braced frames with shear panel system considering post-yield deformation", Can. J. Civil Eng., 40(7), 633-643. https://doi.org/10.1139/cjce-2012-0430
  39. Zahrai, S.M. and Shafieezadeh, A. (2009), "Semi-active control of the wind-excited benchmark tall building using a fuzzy controller", Iran. J. Sci. Technol., 33(B1), 1-25.
  40. Zahrai, S.M. and Vosooq, A.K. (2013), "Study of an innovative two-stage control system, Chevron knee bracing & shear panel in series connection", Struct. Eng. Mech., 47(6), 881-898. https://doi.org/10.12989/sem.2013.47.6.881
  41. Zahrai, S.M. and Jalali, M. (2014), "Experimental and analytical investigations on seismic behavior of ductile steel knee braced frames", Steel Compos. Struct., 16(1), 1-21. https://doi.org/10.12989/scs.2014.16.1.001
  42. Zahrai, S.M., Khalili, B.G. and Mousavi, S.A. (2015), "Seismic behavior of steel frames with lightweight-low strength industrialized infill walls", Earthq. Struct., 9(6), 1273-1290. https://doi.org/10.12989/eas.2015.9.6.1273

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