Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Experimental and numerical study on innovative seismic T-Resisting Frame (TRF)

  • Ashtari, Payam (Department of Civil Engineering, University of Zanjan) ;
  • Sedigh, Helia Barzegar (Department of Civil Engineering, Imam Khomeini International University) ;
  • Hamedi, Farzaneh (Department of Civil Engineering, Imam Khomeini International University)
  • Received : 2015.09.16
  • Accepted : 2016.06.30
  • Published : 2016.10.25
⟨ Previous Next ⟩

Abstract

In common structural systems, there are some limitations to provide adequate lateral stiffness, high ductility, and architectural openings simultaneously. Consequently, the concept of T-Resisting Frame (TRF) has been introduced to improve the performance of structures. In this study, Configuration of TRF is a Vertical I-shaped Plate Girder (V.P.G) which is placed in the middle of the span and connected to side columns by two Horizontal Plate Girders (H.P.Gs) at each story level. System performance is improved by utilizing rigid connections in link beams (H.P.Gs). Plastic deformation leads to tension field action in H.P.Gs and causes energy dissipation in TRF; therefore, V.P.G. High plastic deformation in web of TRF's members affects the ductility of system. Moreover, in order to prevent shear buckling in web of TRF's members and improve overall performance of the system, appropriate criteria for placement of web stiffeners are presented in this study. In addition, an experimental study is conducted by applying cyclic loading and using finite element models. As a result, hysteresis curves indicate adequate lateral stiffness, stable hysteretic behavior, and high ductility factor of 6.73.

Keywords

References

  1. Ashtari, P. and Abbasi, A.A. (2010), "Evaluation of response modification factor of different shape of TBR", International Conference on Seismology, Kerman University, Kerman, Iran.
  2. Ashtari, P. and Bandehzadeh, M. (2009), "Seismic evaluation of new crucial beam-clumn lateral resistant system", 8th National Congress on Civil Engineering, Shiraz University, Shiraz, Iran.
  3. Ashtari, P., Hamedi, F., Barzegar Sedigh, H. and Rasouli, I. (2012), "Comparison of seismic responses of T Resistant Frame (TRF) with shear or bending yielding in link beams", 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
  4. Bahrampoor, H. and Sabouri Ghomi, S. (2010), "Affect of easy-going steel concept on the behavior of diagonal eccentrically braced frames", J. Civil Eng., 8(3), 242-255.
  5. Bandehzadeh, M. and Ashtari, P. (2014), "T-Resisting Frame concept: headway towards seismic performance improvement of steel frames", J. Constr. Steel Res., 104, 193-205.
  6. Barzegar Sedigh, H. (2013), "Invastigation of seismic behavior of T Resistant Frame (TRF) with link beams having shear or moment yielding", Thesis for the degree of Master of Science, Department of Civil Engineering, Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran.
  7. Chao, Sh. and Goel, S.C. (2005), "Performance based seismic design of EBF using target drift and yield mechanism as performance criterion", A Report on Research, Depaertment of Civil & Environment Engineering, University of Michigan, USA.
  8. Farshchi, H., Moghadam, A.S. and Jazany, R.A. (2011), "Experimental and analytical study of connection strength effect in X-type braced frames", Modares J. Civil Eng., 11(4), 69-134.
  9. FEMA 274 (1997), Federal Emergency Management Agancy, NEHRP Commentry on guidelines for the Seismic Rehabilitation of Buildings, Report No 274, Washington DC, IL.
  10. FEMA 356 (2000), Federal Emergency Management Agency, NEHRP Guidelines for the Seismic Rehabilitation of Buildings, Report No 356, Washington DC, IL.
  11. Gorzin, M. (2011), "Seismic assessment of TBF resistant frame with endurance time method", Thesis for the degree of Master of Science, Civil Engineering Department, Faculty of Engineering, Zanjan University, Zanjan , Iran.
  12. Hajnajafi, L. and Tehranizedeh, M. (2013), "Evaluation of seismic behavior for moment frames and eccentrically braced frames due to near-field ground motions", Asian J. Civil Eng. (BHRC), 14(6), 809-830.
  13. Krawinkler, H. (2009), "Loading history for cyclic testing in support of performance assessment of structural component", Department of Civil and Environment Engineering, Stanford University, Stanford, California, USA.
  14. Lignose, D. and Krawinkler, H. (2008), "Sides way collapse of deteriorating structural system under seismic eExcitations", Thesis for the degree of Doctor of Philosophy, Stanford University, Stanford, California, USA.
  15. Riahi, H.T. and Estekanchi, H.E. (2010), "Seismic assessment of steel frames with the endurance time method", J. Constr. Steel Res., 66(6), 780-792. https://doi.org/10.1016/j.jcsr.2009.12.001
  16. Sabouri, G.S. (2001), Lateral Resistant Systems, Introduction of Shear Walls, Angizeh Publication, Tehran, Iran.
  17. Zahrae, S.M. (2009), Behavior of Vertical Link Beam in Steel Building, BHRC Publish No. R-515, Tehran, Iran.
  18. AISC341-10 (2010), Seismic Provisions for Structural Steel Buildings, ANSI-AISC 341-10, American Institute of Steel Construction, Chicago, IL.
  19. ASCE/SEI 7-10 (2010), Seismic rehabilitation of existing buildings, s.l., American Society of Civil Engineers, IL.

Cited by

  1. Experimental and numerical evaluation of innovated T-resisting frames with haunched horizontal plate girders vol.23, pp.8, 2020, https://doi.org/10.1177/1369433219898082
  2. Rigid-Plastic Analysis of Seismic Resistant T-Frame considering Moment-Shear Interaction vol.2021, pp.None, 2016, https://doi.org/10.1155/2021/8844039