Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Behavior of improved through-diaphragm connection to square tubular column under tensile loading

  • Qin, Ying (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University) ;
  • Zhang, Jing-Chen (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University) ;
  • Shi, Peng (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University) ;
  • Chen, Yi-Fu (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University) ;
  • Xu, Yao-Han (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University) ;
  • Shi, Zuo-Zheng (Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, and National Prestress Engineering Research Center, School of Civil Engineering, Southeast University)
  • Received : 2018.04.16
  • Accepted : 2018.10.11
  • Published : 2018.11.25
⟨ Previous Next ⟩

Abstract

Square tubular columns are commonly used in moment resisting frames, while through-diaphragm connection is the most typical configuration detail to connect the H-shaped beam to the column. However, brittle fracture normally occurs at the complete joint penetration weld between the beam flange and the through-diaphragm due to the stress concentration caused by the geometrical discontinuity. Accordingly, three improved types of through-diaphragm are presented in this paper to provide smooth force flow path comparing to that of conventional connections. Tensile tests were conducted on four specimens and the results were analyzed in terms of failure modes, load-displacement response, yield and ultimate capacity, and initial stiffness. Furthermore, strain distributions on the through-diaphragm, the beam flange plate, and the column face were comprehensively evaluated and discussed. It was found that all the proposed three types of improved through-diaphragm connections were able to reduce the stress concentration in the welds between the beam flange and the through-diaphragm. Furthermore, the stress distribution in connection with longer tapered through-diaphragm was more uniform.

Keywords

Acknowledgement

Supported by : Natural Science Foundation of Jiangsu Province

References

  1. De Domenico, D., Falsone, G. and Laudani, R. (2018), "Probability-based structural response of steel beams and frames with uncertain semi-rigid connections", Struct. Eng. Mech., 67(5), 439-455. https://doi.org/10.12989/sem.2018.67.5.439
  2. Dehghan, S.M., Najafgholipour, M.A., Ziarati, S.M. and Mehrpour, M.R. (2018), "Experimental and numerical assessment of beam-column connection in steel momentresisting frames with built-up double-I column", Steel Compos. Struct., 26(3), 315-328. https://doi.org/10.12989/SCS.2018.26.3.315
  3. De Nardin, S. and El Debs, A.L.H.C. (2018), "Shear transfer mechanism in connections involving concrete filled steel columns under shear forces", Steel Compos. Struct., 28(4), 449-460. https://doi.org/10.12989/SCS.2018.28.4.449
  4. Esfandyary, R., Razzaghi, M.S. and Eslami, A. (2015), "A parametric investigation on the hysteretic behaviour of CFT column to steel beam connections", Struct. Eng. Mech., 55(1), 205-228. https://doi.org/10.12989/sem.2015.55.1.205
  5. Goswami, R. and Murty, C.V.R. (2010), "Externally reinforced welded I-beam-to-box-column seismic connection", J. Eng. Mech., 136, 23-30. https://doi.org/10.1061/(ASCE)0733-9399(2010)136:1(23)
  6. Hadianfard, M.A., Hashemi, A. and Gholami, M. (2017), "Study on the effects of various mid-connections of x-brace on frame behavior", Earthq. Struct., 12(4), 449-455. https://doi.org/10.12989/eas.2017.12.4.449
  7. Kim, T., Stojadinovic, B. and Whittaker, A.S. (2008), "Seismic performance of pre-Northridge welded steel moment connections to built-up box columns", J. Struct. Eng., 134, 289-299. https://doi.org/10.1061/(ASCE)0733-9445(2008)134:2(289)
  8. Kim, Y.J. and Oh, S.H. (2007), Effect of the moment transfer efficiency of a beam web on deformation capacity at box column-to-H beam connections", J. Constr. Steel Res., 63, 24-36. https://doi.org/10.1016/j.jcsr.2006.02.009
  9. Kurobane, Y. (2002), "Connection in tubular structures", Prog. Struct. Eng. Mater., 4, 35-45.
  10. Mirghaderi, S.R., Torabian, S. and Keshavarzi, F. (2010), "I-beam to boxcolumn connection by a vertical plate passing through the column", Eng. Struct., 32, 2034-2048.
  11. Nia, Z.S., Ghassemieh, M. and Mazroi, A. (2013), "WUF-W connection performance to box column subjected to uniaxial and biaxial loading", J. Constr. Steel Res., 88, 90-108.
  12. Nia, Z.S., Mazroi, A. and Ghassemieh, M. (2014), "Cyclic performance of flange-plate connection to box column with finger shaped plate", J. Constr. Steel Res., 101, 207-223. https://doi.org/10.1016/j.jcsr.2014.05.016
  13. Nunez, E., Torres, R. and Herrera, R. (2017), "Seismic performance of moment connections in steel moment frames with HSS columns", Steel Compos. Struct., 25(3), 271-286. https://doi.org/10.12989/SCS.2017.25.3.271
  14. Qin, Y., Chen, Z.H. and Rong, B. (2015a), "Modeling of CFRT through-diaphragm connections with H-beams subjected to axial load", J. Constr. Steel Res., 114, 146-156. https://doi.org/10.1016/j.jcsr.2015.04.015
  15. Qin, Y., Chen, Z.H. and Rong, B. (2015b), "Component-based mechanical models for concrete-filled RHS connections with diaphragms under bending moment", Adv. Struct. Eng., 18(8), 1241-1255. https://doi.org/10.1260/1369-4332.18.8.1241
  16. Qin, Y. and Chen, Z.H. (2016), "Research on cold-formed steel connections: A state-of-the-art review", Steel Compos. Struct., 20(1), 21-41. https://doi.org/10.12989/SCS.2016.20.1.021
  17. Qin, Y., Chen, Z.H., Bai, J.J. and Li, Z.L. (2016), "Test of extended thick-walled through-diaphragm connection to thickwalled CFT column", Steel Compos. Struct., 20(1), 1-20. https://doi.org/10.12989/scs.2016.20.1.001
  18. Qin, Y., Lu, J.Y. and Cao, S. (2017), "Theoretical study on local buckling of steel plate in concrete filled tube column under axial compression", ISIJ Int., 57(9), 1645-1651. https://doi.org/10.2355/isijinternational.ISIJINT-2016-755
  19. Rezaifar, O., Nazari, M. and Gholhaki, M. (2017), "Experimental study of rigid beam-to-box column connections with types of internal/external stiffeners", Steel Compos. Struct., 25(5), 535-544. https://doi.org/10.12989/SCS.2017.25.5.535
  20. Rong, B., You, G., Zhang, R., Ma, X. and Quan, X. (2018), "Experimental and theoretical studies on SHS column connection with external stiffening ring under static tension load", Steel Compos. Struct., 28(2), 167-177. https://doi.org/10.12989/SCS.2018.28.2.167
  21. Shahidi, F., Rezaeian, A., Jamal-Omidi, M. and Shahidi, F. (2015), "Investigation of the ConXL moment connection cyclic behavior in box columns without filling concrete with different arrangement of collar bolts", Struct. Des. Tall Spec. Build., 24, 317-350. https://doi.org/10.1002/tal.1167
  22. Shahraki, M., Sohrabi, M.R., Aziaian, G. and Narmashiri, K. (2018), "Experimental and numerical investigation of strengthened deficient steel SHS columns under axial compressive loads", Struct. Eng. Mech., 67(2), 207-217. https://doi.org/10.12989/SEM.2018.67.2.207
  23. Torabian, S., 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
  24. Wang, J., Uy, B. and Li, D.X. (2018), "Analysis of demountable steel and composite frames with semi-rigid bolted joints", Steel Compos. Struct., 28(3), 363-380. https://doi.org/10.12989/SCS.2018.28.3.363
  25. Wang, Z.Y. and Wang, Q.Y. (2016), "Yield and ultimate strengths determination of a blind bolted endplate connection to square hollow section column", Eng. Struct., 111, 345-369.
  26. Zhang, T., Ding, F.X., Wang, L.P. Liu, X.M. and Jiang, G.S. (2018), "Behavior of polygonal concrete-filled steel tubular stub columns under axial loading", Steel Compos. Struct., 28(5), 573-588. https://doi.org/10.12989/SCS.2018.28.5.573
  27. Zohra, D.F. and Abd Nacer, I.T. (2018), "Dynamic analysis of steel frames with semi-rigid connections", Struct. Eng. Mech., 65(3), 327-334. https://doi.org/10.12989/SEM.2018.65.3.327

Cited by

  1. Further study on improvement on strain concentration in through-diaphragm connection vol.39, pp.2, 2018, https://doi.org/10.12989/scs.2021.39.2.135