Steel and Composite Structures

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Experimental study of rigid beam-to-box column connections with types of internal/external stiffeners

  • Rezaifar, Omid (Department of Civil Engineering and Research Institute of Novin Technologies, Semnan University) ;
  • Nazari, Mohammad (Structure Engineering, Faculty of Civil Engineering, Semnan University) ;
  • Gholhaki, Majid (Department of Civil Engineering, Semnan University)
  • Received : 2016.06.21
  • Accepted : 2017.08.12
  • Published : 2017.12.10
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Abstract

Box sections are symmetrical sections and they have high moment of inertia in both directions, therefore they are good members in tall building structures. For the rigid connection in structures with box column continuity plates are used on level of beam flanges in column. Assembly of the continuity plates is a difficult and unreliable work due to lack of weld or high welding and cutting in the fourth side of column in panel zone, so the use of experimental stiffeners have been considered by researchers. This paper presented an experimental investigation on connection in box columns. The proposed connection has been investigated in four cases which contain connection without internal and external stiffeners(C-0-00), connection with continuity plates(C-I-CP), connection with external vase shape stiffener (C-E-VP) and connection with surrounding plates(C-E-SP). The results show that the connections with vase plates and surrounding plates can respectively increase the ultimate strength of the connection up to 366% and 518% than the connection without stiffeners, in case connection with the continuity plates this parameter increases about 39%. In addition, the proposed C-E-VP and C-E-SP connection provide a rigid and safe connection to acquire rigidity of 95% and 98% respectively. But C-I-CP connection is classified as semi-rigid connections.

Keywords

References

  1. Allowable stress design (ASD) manual of steel construction (1989), "Specification for Structural Steel Buildings", Amer. Inst. of Steel Constr., Chicago, 111.
  2. American Society of Civil Engineers (2010), "Minimum design loads for buildings and other structures", Amer. Society of Civil Engineers, 7.
  3. Chen, C.C., Lin, C.C. and Lin, C.H. (2006), "Ductile moment connections used in steel column-tree moment resisting frames", J. Constr. Steel Res., 62(8), 793-801. https://doi.org/10.1016/j.jcsr.2005.11.012
  4. Chen, C.C., Lin, C.C. and Tsai, C.L. (2004), "Evaluation of reinforced connections between steel beams and box columns", Eng. Struct., 26(13), 1889-1904. https://doi.org/10.1016/j.engstruct.2004.06.017
  5. Clark, P. (1997), "Protocol for fabrication, inspection, testing, and documentation of beam-column connection test and other experimental specimen", SAC Joint Venture, Sacramento, California.
  6. Huang, Y.S., Long. Y., Y., Y.L. and Cai, J. (2008), "Ultimate strength of rectangular Concrete-Filled steel Tubular (CFT) stub columns under axial compression", Steel Compos. Struct., 8(2), 115-128. https://doi.org/10.12989/scs.2008.8.2.115
  7. Kang, C.H., Shin, K.J., Oh, Y.S. and Moon, T.S. (2001), "Hysteresis behavior of CFT column to H-beam connections with external T-stiffener and penetrated elements", Eng. Struct., 23(9), 1194-1201. https://doi.org/10.1016/S0141-0296(00)00119-X
  8. Kang, L., Leon, R.T. and Lu, X. (2015), "Shear strength analyses of internal diaphragm connections to CFT columns", Steel Compos. Struct., 18 (5), 1083-1101. https://doi.org/10.12989/scs.2015.18.5.1083
  9. Kurobane, Y. (2002), "Connections in tubular structures", Prog. Struct. Eng. Mater., 4(1), 35-43. https://doi.org/10.1002/pse.102
  10. Kwak, J.H., 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., 14 (2), 173-190. https://doi.org/10.12989/scs.2013.14.2.173
  11. 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.
  12. 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
  13. 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
  14. 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.
  15. 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
  16. 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
  17. Mirghaderi, S.R., Torabian, S.h. 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
  18. Park, J.W., Kang, S.M. and Yang, S.C. (2005), "Experimental studies of wide flange beam to square concrete-filled tube column joints with stiffening plated around the column", J. Struct. Eng. - ASCE, 131(12), 1866-1876. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:12(1866)
  19. Qiu, W., Jiang, M., Pan, S. and Zhang, Z. (2013), "Seismic responses of composite bridge piers with CFT columns embedded inside", Steel Compos. Struct., 15 (3), 343-355. https://doi.org/10.12989/scs.2013.15.3.343
  20. Rezaifar, O. and Younesi, A. (2016), "Finite element study the seismic behavior of connection to replace the continuity plates in (NFT/CFT) steel columns", Steel Compos. Struct., 21 (1), 73-91. https://doi.org/10.12989/scs.2016.21.1.073
  21. Shanmugam, N.E. and Ting, L.C. (1995), "Welded interior box-column to I-beam connections", J. Struct. Eng. - ASCE, 121(5), 824-830. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:5(824)
  22. Shanmugam, N.E., Ting, L.C. and Lee, S.L. (1991), "Behavior of I-beam to box-column connections 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
  23. Shin, K.J., Kim, Y.J. and Oh, Y.S. (2008), "Seismic behavior of composite concrete-filled tube column-to-beam moment connections", J. Constr. Steel Res., 64(1), 118-127. https://doi.org/10.1016/j.jcsr.2007.04.001
  24. Shin, K.J., Kim, Y.J., Oh, Y.S. and Moon, T.S. (2004), "Behavior of welded CFT column to H-beam connections with external stiffeners", Eng. Struct., 26(13), 1877-1887. https://doi.org/10.1016/j.engstruct.2004.06.016
  25. Tanaka, N. (2003), "Evaluation of maximum strength and optimum haunch length of steel beam-end with horizontal haunch", Eng. Struct., 25(2), 229-239. https://doi.org/10.1016/S0141-0296(02)00146-3
  26. Torabian, S.h., 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(1), 385-401. https://doi.org/10.1016/j.jcsr.2011.10.017
  27. Wang, Q.T. and Chang, X. (2013), "Analysis of concrete-filled steel tubular columns with \"T \" shaped cross section (CFTTS)", Steel Compos. Struct., 15 (1), 41-55. https://doi.org/10.12989/scs.2013.15.1.41

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