Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Experimental study on innovative tubular web RBS connections in steel MRFs with typical shallow beams

  • Saleh, Aboozar (School of Civil Engineering, the University of Tehran) ;
  • Zahrai, Seyed M. (School of Civil Engineering, the University of Tehran) ;
  • Mirghaderi, Seyed R. (School of Civil Engineering, the University of Tehran)
  • Received : 2015.07.20
  • Accepted : 2015.12.10
  • Published : 2016.03.10
⟨ Previous Next ⟩

Abstract

An innovative Reduced Beam Section (RBS) connection, called Tubular Web RBS connection (TW-RBS), has been recently introduced and its performance has been numerically investigated in some earlier studies. The TW-RBS connection is a kind of accordion-web RBS connection in which part of the flat web of the beam is replaced by a steel tube at the expected region of the plastic hinge. This paper presents experimental results of three TW-RBS connections under cyclic loading. Obtained results indicated that TW-RBS reduces contribution of the beam web to the whole moment strength and creates a ductile fuse far from components of the beam-to-column connection. Besides, TW-RBS connection can increase story drift capacity up to 9% in the case of shallow beams which is much more than those stipulated by the current seismic codes. Based on the experimental results, the tubular web in the plastic hinge region improves lateral-torsional buckling stability of the beam such that only local buckling of the beam flange at the center of the reduced section was observed during the tests. In order to achieve a better understanding, behavior of all TW-RBS specimens are also numerically investigated and compared with those of experimental results.

Keywords

Acknowledgement

Supported by : University of Tehran

References

  1. American Institute of Steel Construction (2010), Seismic Provisions for Structural Steel Buildings, AISC, Chicago.
  2. Engelhardt, M., Winneberger, T., Zekany, A. and Potyraj, T. (1998), "Experimental investigation of Dogbone moment connections", Eng. J. AISC, Fourth Quarter, 128-139.
  3. Federal Emergency Management Agency (2000), FEMA-350, Seismic design criteria for new moment resisting steel frame construction, Washington DC.
  4. Federal Emergency Management Agency (2000), FEMA-355D, State of the art report on connection performance, Washington DC.
  5. Han, S.W. and Moon, H.H. (2009), "Design equations for moment strength of RBS-B connection", J. Constr. Steel Res., 65, 1087-1095. https://doi.org/10.1016/j.jcsr.2009.01.003
  6. Mirghaderi, S.R., Torabian, S. and Imanpour, A. (2010), "Seismic performance of the Accordion-Web RBS connection", J. Constr. Steel Res., 66, 277-288. https://doi.org/10.1016/j.jcsr.2009.09.007
  7. Morrison, M., Schweizer, D. and Hassan, T. (2015), "An innovative seismic performance enhancement technique for steel building moment resisting connections", J. Constr. Steel Res., 109, 34-46. https://doi.org/10.1016/j.jcsr.2015.02.010
  8. Naeim, F. (2001), The seismic design handbook, 2nd Edition, Kluwer Academic Publishers.
  9. Pachoumis, D.T., Galoussis, E.G., Kalfas, C.N. and Efthimiou, I.Z. (2010), "Cyclic performance of steel moment-resisting connections with reduced beam sections-experimental analysis and finite element model simulation", Eng. Struct., 32(9), 2683-2692. https://doi.org/10.1016/j.engstruct.2010.04.038
  10. Ricles, J.M., Mao, C., Lu, L.W. and Fisher, J.W. (2003), "Ductile details for welded unreinforced moment connections subject to inelastic cyclic loading", Eng. Struct., 25(5), 667-680. https://doi.org/10.1016/S0141-0296(02)00176-1
  11. Saleh, A., Mirghaderi, S.R. and Zahrai, S.M. (2016a), "Cyclic testing of tubular web RBS connections in deep beams", J. Constr. Steel Res., 117, 214-226. https://doi.org/10.1016/j.jcsr.2015.10.020
  12. Saleh, A., Zahrai, S.M. and Mirghaderi, S.R. (2016b), "Cyclic testing of tubular web RBS connections with two accordion cells in deep beams", Eng. Struct. (in Press)
  13. Tsavdaridis, K.D. and D'Mello, C. (2012), "Optimisation of novel elliptically-based web opening shapes of perforated steel beams", J. Constr. Steel Res., 76, 39-53. https://doi.org/10.1016/j.jcsr.2012.03.026
  14. Wilkinson, S., Hurdman, G. and Crouther, A. (2006), "A moment resisting connection for earthquake resisting structure", J. Constr. Steel Res., 62, 295-302. https://doi.org/10.1016/j.jcsr.2005.07.011
  15. Yang, Q. and Yang, N. (2009), "Seismic behaviors of steel moment resisting frames with opening in beam web", J. Constr. Steel Res., 65(6), 1323-1336. https://doi.org/10.1016/j.jcsr.2009.01.007

Cited by

  1. Design of Optimal Slit Steel Damper Under Cyclic Loading for Special Moment Frame by Cuckoo Search pp.2093-6311, 2019, https://doi.org/10.1007/s13296-019-00206-6
  2. Increasing plastic hinge length using two pipes in a proposed web reduced beam section, an experimental and numerical study vol.23, pp.4, 2017, https://doi.org/10.12989/scs.2017.23.4.421
  3. Seismic behavior of steel column-base-connection equipped by NiTi shape memory alloy vol.64, pp.1, 2016, https://doi.org/10.12989/sem.2017.64.1.109
  4. Seismic performance of moment connections in steel moment frames with HSS columns vol.25, pp.3, 2016, https://doi.org/10.12989/scs.2017.25.3.271
  5. Seismic design of the double-cell accordion-web reduced beam section connection vol.191, pp.None, 2016, https://doi.org/10.1016/j.engstruct.2019.04.023
  6. Experimental and numerical evaluation of rigid connection with reduced depth section vol.34, pp.6, 2016, https://doi.org/10.12989/scs.2020.34.6.863
  7. Numerical Study on Cyclic Response of End-Plate Biaxial Moment Connection in Box Columns vol.10, pp.4, 2020, https://doi.org/10.3390/met10040523
  8. A new replaceable fuse for moment resisting frames: Replaceable bolted reduced beam section connections vol.35, pp.3, 2016, https://doi.org/10.12989/scs.2020.35.3.353
  9. Behavior of CFS built-up battened columns: Parametric study and design recommendations vol.74, pp.3, 2016, https://doi.org/10.12989/sem.2020.74.3.381
  10. Investigation of Seismic Performance of (RBS) and Drilled Flange Connection (DFC) Containing rhombus Shaped Hole in Steel Moment Frames vol.18, pp.2, 2016, https://doi.org/10.1080/14488353.2020.1771664
  11. Fatigue Reduction in Tubular Web Connections in Semi-deep Beams vol.20, pp.4, 2020, https://doi.org/10.1007/s13296-020-00351-3
  12. Experimental study on typically designed double-sided plate-reinforced joints with middle columns vol.219, pp.None, 2016, https://doi.org/10.1016/j.engstruct.2020.110965
  13. Cyclic Performance of End-Plate Biaxial Moment Connection with HSS Columns vol.10, pp.11, 2020, https://doi.org/10.3390/met10111556
  14. Experimental-numerical study on weakened HSS-to-HSS connections using HBS and RBS approaches vol.28, pp.None, 2016, https://doi.org/10.1016/j.istruc.2020.09.076
  15. Cyclic Behavior of Hollow Section Beam-Column Moment Connection: Experimental and Numerical Study vol.10, pp.12, 2016, https://doi.org/10.3390/met10121608
  16. Optimized stiffener detailing for shear links in eccentrically braced frames vol.39, pp.1, 2016, https://doi.org/10.12989/scs.2021.39.1.035