Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Finite element study the seismic behavior of connection to replace the continuity plates in (NFT/CFT) steel columns

  • Rezaifar, Omid (Department of Civil Engineering and Research Institute of Novin Technologies, Semnan University) ;
  • Younesi, Adel (Structure Engineering, Faculty of Civil Engineering, Semnan University)
  • Received : 2015.08.20
  • Accepted : 2016.02.29
  • Published : 2016.05.20
⟨ Previous Next ⟩

Abstract

The use of box columns has been increased due to the rigidity in rigid orthogonal moment resisting frames. On the other hand, the installation and welding of necessary horizontal continuity plates inside the columns are both labor-consuming and costly tasks. Accordingly, in this paper, a new beam-to-box column connection by trapezoidal external stiffeners and horizontal bar mats is presented to provide seismic parameters. The proposed connection consists of eight external stiffeners in the level of beam flanges and five horizontal bar mats in Concrete Filled Tube (CFT) columns. The new connection effectively alleviates the stress concentration and moves the plastic hinge away from the column face by horizontal external stiffeners. In addition, the result shows that proposed connection has provided the required strength and rigidity of connection, so that the increased strength, 8.08% and rigidity, 3.01% are compared to connection with internal continuity plates, also the results indicate that this connection can offer appropriate ductility and energy dissipation capacity for its potential application in moment resisting frames in seismic region. As a result, the proposed connection can be a good alternative for connection with continuity plates.

Keywords

References

  1. Azuma, K., Kurobane, Y. and Makino, Y. (2000), "Cyclic testing of beam-to-column connections with weld defects and Assessment of safety of numerically modeled connections from brittle fracture", Eng. Struct., 22(12), 1596-1608. https://doi.org/10.1016/S0141-0296(99)00115-7
  2. Bertero, V.V., Krawinkler, H. and Popov, E.P. (1973), "Further studies on seismic behavior of steel beamcolumn subassemblages", Report No. EERC-73/27; Earthquake Eng. Research Center, University of California, Berkeley, CA, USA.
  3. Clark, P. (1997), "Protocol for fabrication, inspection, testing, and documentation of beam-column connection test and other experimental specimen", SAC Joint Venture, Sacramento, CA, USA.
  4. Fukumoto, T. (2005), "Steel-beam-to-concrete-filled-steel-tube-column moment connections in Japan", Steel Struct., 5(4), 357-365.
  5. Fukumoto, T. and Morita, K. (2005), "Elastoplastic behavior of panel zone in steel beam-to-concrete filled steel tube column moment connections", J. Struct. Eng., 131(12), 1841-1853. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:12(1841)
  6. Huang, Y.S., Long, Y.L. and Cai, J. (2008), "Ultimate strength of rectangular Concrete-Filled steel Tubular (CFT) stub columns under axial compression", Steel Compos. Struct., Int. J., 8(2), 115-128. https://doi.org/10.12989/scs.2008.8.2.115
  7. Iwashita, T., Kurobane, Y., Azuma, K. and Makino, Y. (2003), "Prediction of brittle fracture initiating at ends of CJP groove welded joints with defects: Study into applicability of failure assessment diagram approach", Eng. Struct., 25(14), 1815-1826. https://doi.org/10.1016/j.engstruct.2003.08.005
  8. Kwak, J.H., Kwak, H.G. and Kim, J.K. (2013), "Behavior of circular CFT columns subject to axial force and bending moment", Steel Compos. Struct., Int. J., 14(2), 173-190. https://doi.org/10.12989/scs.2013.14.2.173
  9. Jiang, X.L., Miao, J.K. and Chen, Z.H. (2009), "Experiment on seismic performance of diaphragm-through joint between concrete-filled square steel tubular column and steel beam", J. Tianjin Univ., 42(3), 194-200.
  10. Jones, M.H. and Wang, Y.C. (2010), "Tying behavior of fin-plate connection to concrete-filled rectangular steel tubular column-development of a simplified calculation method", J. Const. Steel Res., 66(1), 1-10. https://doi.org/10.1016/j.jcsr.2009.07.011
  11. Kang, L., Leon, R.T. and Lu, X. (2015), "Shear strength analyses of internal diaphragm connections to CFT columns", Steel Compos. Struct., Int. J., 18(5), 1083-1101. https://doi.org/10.12989/scs.2015.18.5.1083
  12. Krawinkler, H., Bertero, V.V. and Popov, E.P. (1971), "Inelastic behavior of steel beam-to-column subassemblages", Report No EERC-71/7; Earthquake Engineering Research Center, University of California, Berkeley, CA, USA.
  13. Kurobane, Y. (2002), "Connections in tubular structures", Prog. Struct. Eng. Mat., 4(1), 35-45. https://doi.org/10.1002/pse.102
  14. Lee, S.L., Ting, L.C. and Shanmugam, N.E. (1991a), "Behavior of I-beam to box-column connection stiffened externally and subjected to fluctuating loads", J. Constr. Steel Res., 20(2), 129-148. https://doi.org/10.1016/0143-974X(91)90016-T
  15. Lee, S.L., Ting, L.C. and Shanmugam, N.E. (1991b), "Box column to I-beam connections with exter-nal stiffeners", J. Constr. Steel Res., 18(3), 209-226. https://doi.org/10.1016/0143-974X(91)90026-W
  16. Lee, S.L., Ting, L.C. and Shanmugam, N.E. (1993a), "Design of I-beam to box-column connections stiffened externally", Eng. J., 30(4), 141-149.
  17. Lee, S.L., Ting, L.C. and Shanmugam, N.E. (1993b), "Static behavior of I-beam to box-column connections with external stiffeners", Eng. Struct., 71(15), 269-275.
  18. Lee, S.L., Ting, L.C. and Shanmugam, N.E. (1993c), "Use of external T-stiffeners in box-column to I-beam connections", J, Constr. Steel Res., 26(2-3), 77-98. https://doi.org/10.1016/0143-974X(93)90030-V
  19. Lee, S.L., Ting, L.C. and Shanmugam, N.E. (1994), "Nonlinear analysis of I-beam to box column connections", J. Constr. Steel Res., 28(3), 257-278. https://doi.org/10.1016/0143-974X(94)90067-1
  20. Mirghaderi, S.R., Shahabeddin, T. and Keshavarzi, F. (2010), "I-beam to box-column connection by a vertical plate passing through the column", Eng. Struct., 32(8), 2034-2048. https://doi.org/10.1016/j.engstruct.2010.03.002
  21. Miura, K. and Makino, Y. (2001), "Testing of beam-to-RHS column connections without weld access holes", Proceedings of the 11th International Offshore and Polar Engineering Conference, San Francisco, CA, USA, May, pp. 37-44.
  22. Nie, J.G., Qin, K. and Cai, C.S. (2008a), "Seismic behavior of connections composed of CFSSTCs and steel-concrete composite beams-experimental study", J. Constr. Steel Res, 64(10), 1178-1191. https://doi.org/10.1016/j.jcsr.2007.12.004
  23. Nie, J.G., Qin, K. and Cai, C.S. (2008b), "Seismic behavior of connections composed of CFSSTCs and steel-concrete composite beams-finite element analysis", J. Constr. Steel Res, 64(6), 680-688. https://doi.org/10.1016/j.jcsr.2007.12.003
  24. Nie, J.G., Qin, K. and Cai, C.S. (2009), "Seismic behavior of composite connections-flexural capacity analysis", J. Constr. Steel Res, 65(5), 1112-1120. https://doi.org/10.1016/j.jcsr.2008.12.003
  25. Nishiyama, I., Fujimoto, T., Fukumoto, T. and Yoshioka, K. (2004), "Inelastic force-deformation response of joint shear panels in beam-column moment connections to concrete-filled tubes", J. Struct. Eng., 130(2), 244-252. https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(244)
  26. Popov, E.P. (1987), "Panel zone flexibility in seismic moment joints", J. Constr. Steel Res., 8, 91-118. https://doi.org/10.1016/0143-974X(87)90055-1
  27. Qin, Y., Chen, Z. and Wang, X. (2014a), "Elastoplastic behavior of through-diaphragm connections to concrete-filled rectangular tubular columns", J. Constr. Steel Res., 93, 88-96. https://doi.org/10.1016/j.jcsr.2013.10.011
  28. Qin, Y., Chen, Z., Wang, X. and Zhou, T. (2014b), "Seismic behavior of through-diaphragm connections between CFRT columns and steel beams-experimental study", Adv. Steel Constr., 10(3), 351-371.
  29. Qiu, W., Jiang, M., Pan, S. and Zhang, Z. (2013), "Seismic responses of composite bridge piers with CFT columns embedded inside", Steel Compos. Struct., Int. J., 15(3), 343-355. https://doi.org/10.12989/scs.2013.15.3.343
  30. Rong, B., Chen, Z.H., Zhang, R.Y., Apostolos, F. and Yang, N. (2012), "Experimental and analytical investigation of the behavior of diaphragm-through joints of concrete-filled tubular columns", J. Mech. Mater. Struct., 7(10), 909-929. https://doi.org/10.2140/jomms.2012.7.909
  31. Shahabeddin, T., Mirghaderi, S.R. and Keshavarzi, F. (2012), "Moment connection between I-beam and built-up square column by a diagonal through plate", J. Constr. Steel Res., 70, 385-401. https://doi.org/10.1016/j.jcsr.2011.10.017
  32. Shanmugam, N.E. and Ting, L.C. (1995), "Welded interior box-column to I-beam connections", Eng. Struct., 121(5), 824-830. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:5(824)
  33. Wang, Q.T. and Chang, X. (2013), "Analysis of concrete-filled steel tubular columns with "T" shaped cross section (CFTTS)", Steel Compos. Struct., Int. J., 15(1), 41-55. https://doi.org/10.12989/scs.2013.15.1.41
  34. Wang, W.D., Han, L.H. and Zhao, X.L. (2009), "Analytical behavior of Frames with steel beams to concrete-filled steel tubular column", J. Constr. Steel Res., 65(3), 497-508. https://doi.org/10.1016/j.jcsr.2008.11.002

Cited by

  1. Experimental study discussion of the seismic behavior on new types of internal/external stiffeners in rigid beam-to-CFST/HSS column connections vol.136, 2017, https://doi.org/10.1016/j.conbuildmat.2017.01.032
  2. Experimental and Numerical Investigation of Concrete-Filled Double-Skin Steel Tubular Column for Steel Beam Joints vol.2018, pp.1687-8442, 2018, https://doi.org/10.1155/2018/6514025
  3. Experimental seismic behaviour of L-CFST column to H-beam connections vol.26, pp.6, 2018, https://doi.org/10.12989/scs.2018.26.6.793
  4. Cyclic performance and design recommendations of a novel weak-axis reduced beam section connection vol.27, pp.3, 2018, https://doi.org/10.12989/scs.2018.27.3.337