Structural Engineering and Mechanics

  • 제68권2호
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  • Pages.193-201
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  • 2018
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Effects of loading history on seismic performance of SRC T-shaped column, Part I: Loading along web

  • Wang, J. (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Liu, Z.Q. (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Xue, J.Y. (College of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Hu, C.M. (College of Civil Engineering, Xi'an University of Architecture and Technology)
  • 투고 : 2018.10.08
  • 심사 : 2018.08.20
  • 발행 : 2018.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper describes an experimental study on the seismic performance of steel reinforced concrete (SRC) T-shaped columns. The lateral loads were applied along the web of the column with different loading histories, such as monotonic loading, mixed loading of variable amplitude cyclic loading and monotonic loading, constant amplitude cyclic loading and variable amplitude cyclic loading. The failure modes, load-displacement curves, characteristic loads and displacements, ductility, strength and stiffness degradations and energy dissipation capacity of the column were analyzed. The effects of loading history on the seismic performance were focused on. The test results show that the specimens behaved differently in the aspects of the failure mode subject to different loading history, although all the failure modes can be summarized as flexural failure. The hysteretic loops of specimens are plump, and minimum values of the failure drift angles and ductility coefficients are 1/24 and 4.64, respectively, which reflect good seismic performance of SRC T-shaped column. With the increasing numbers of loading cycles, the column reveals lower bearing capacity and ductility. The strength and stiffness of the column with variable amplitude cyclic loading degrades more rapidly than that with constant amplitude cyclic loading, and the total cumulative dissipated energy of the former is less.

키워드

과제정보

연구 과제 주관 기관 : Natural Science Foundation of China, Xi'an University of Architecture and Technology

참고문헌

  1. Balaji, K.V.G.D. and Murty, D.S.R. (2001), "Reliability analysis of RC T-shaped column sections", Ind. Concrete J., 75(3), 223-227.
  2. Cao, W.L., Hu, G.Z., Cui, L.C., Zhou, M.J., Hao, C.S. and Qu, Y.H. (2002), "Experimental and analysis of seismic behavior of the +, L, T-shaped columns with concealed columns", J. Build. Struct., 23(1), 16-20. https://doi.org/10.3321/j.issn:1000-6869.2002.01.003
  3. Castiglioni, C.A. (2005), "Effects of the loading history on the local buckling behavior and failure mode of welded beam-to-column joints in moment-resisting steel frames", J. Eng. Mech. ASCE, 131(6), 568-585. https://doi.org/10.1061/(ASCE)0733-9399(2005)131:6(568)
  4. Chen, Z.P., Xu, J.J., Chen, Y.L. and Xue, J.Y. (2016), "Axial compression ratio limit values for steel reinforced concrete (SRC) special-shaped columns", Steel Compos. Struct., 20(2), 295-316. https://doi.org/10.12989/scs.2016.20.2.295
  5. Ellobody, E. and Yong, B. (2011b), "Numerical simulation of concrete encased steel composite columns", J. Constr. Steel Res., 67(2), 211-222. https://doi.org/10.1016/j.jcsr.2010.08.003
  6. He, J., Liu, Y.Q., Chen, A.R., Wang, D.L. and Yoda, T. (2014a), "Bending behavior of concrete-encased composite I-girder with corrugated steel web", Thin-Walled Struct., 74, 70-84. https://doi.org/10.1016/j.tws.2013.08.003
  7. Hsu, T.C. (1989), "T-shaped reinforced concrete members under biaxial bending and axial compression", ACI Struct. J., 86(4), 460-468.
  8. Kim, C.S., Park, H.G., Chung, K.S. (2012b), "Eccentric axial load testing for concrete-encased steel columns using 800 MPa steel and 100 MPa Concrete", J. Struct. Eng., 138(8), 1019-1031. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000533
  9. Kumar, S. and Usami, T. (1996), "Damage evaluation in steel box columns by cyclic loading tests", J. Struct. Eng. ASCE, 122(6), 626-634. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:6(626)
  10. Mallikarjuna and Mahadevappa P. (1994), "Computer aided analysis of reinforced concrete columns subjected to axial compression and bending-Part II: T-shaped Sections", Comput. Struct., 53(6), 1317-1356. https://doi.org/10.1016/0045-7949(94)90399-9
  11. Qian, J.R., Li, N.B., Ji, X.D. and Zhao, Z.Z. (2014c), "Experimental study on the seismic behavior of high strength concrete filled double-tube columns", Earthq. Eng. Eng. Vibr., 13(1), 47-57.
  12. Tao, M.X., Fan, J.S. and Nie, J.G. (2013), "Seismic behavior of steel reinforced concrete column-steel truss beam hybrid joints", Eng. Struct., 56, 1557-1569. https://doi.org/10.1016/j.engstruct.2013.07.029
  13. Wu, B. and Xu, Y.Y. (2009), "Behavior of axially-and-rotationally restrained concrete columns with '+'-shaped cross section and subjected to fire", Fire Safe. J., 44(2), 212-218. https://doi.org/10.1016/j.firesaf.2008.07.003
  14. Xiao, J.Z., Li, J. and Chen, J. (2011a), "Experimental study on the seismic response of braced reinforced concrete frame with irregular columns", Earthq. Eng. Eng. Vibr., 10(4), 487-494. https://doi.org/10.1007/s11803-011-0083-z
  15. Xue, J.Y., Chen, Z.P., Zhao, H.T., Gao, L. and Liu, Z.Q. (2012c), "Shear mechanism and bearing capacity calculation on steel reinforced concrete special-shaped columns", Steel Compos. Struct., 13(5), 473-487. https://doi.org/10.12989/scs.2012.13.5.473
  16. Xue, J.Y., Gao, L., Liu, Z.Q., Zhao, H.T. and Chen, Z.P. (2014b), "Experimental study on mechanical performance of lattice steel reinforced concrete inner frame with irregular section columns", Steel Compos. Struct., 16(3), 253-267. https://doi.org/10.12989/scs.2014.16.3.253
  17. Xue, J.Y., Zhou, C.F. and Liu, Z.Q. (2017), "Research on damage of solid-web steel reinforced concrete T-shaped columns subjected to various loadings", Steel Compos. Struct., 24(4), 409-423. https://doi.org/10.12989/SCS.2017.24.4.409
  18. Zheng, S.S., Wang, B., Li, L., Hou, P.J. and Wang, W. (2011c), "Study on seismic damage of SRHSC frame columns", Sci. China Tech. Sci., 54(11), 2886-2895. https://doi.org/10.1007/s11431-011-4489-7
  19. Zhou, T., Chen, Z.H. and Liu, H.B. (2012a), "Seismic behavior of special shaped column composed of concrete filled steel tubes", J. Constr. Steel Res., 75, 131-141. https://doi.org/10.1016/j.jcsr.2012.03.015