Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Mechanical behaviors of concrete-filled rectangular steel tubular under pure torsion

  • Ding, Fa-xing (School of Civil Engineering, Central South University) ;
  • Sheng, Shi-jing (School of Civil Engineering, Central South University) ;
  • Yu, Yu-jie (School of Civil Engineering, Central South University) ;
  • Yu, Zhi-wu (School of Civil Engineering, Central South University)
  • Received : 2018.11.02
  • Accepted : 2019.04.05
  • Published : 2019.05.10
⟨ Previous Next ⟩

Abstract

Pure torsion loading conditions were not frequently occurred in practical engineering, but the torsional researches were important since it's the basis of mechanical property researches under complex loading. Then a 3D finite element model with precise material constitutive models was established, and the effectiveness was verified with test data. Parametric studies with varying factors as steel yield strength, concrete strength and sectional height-width ratio, were performed. Internal stress state and the interaction effect between encased steel tube and the core concrete were analyzed. Results indicated that due to the confinement effect between steel tube and core concrete, the torsional strength of CFT columns was greatly improved comparing to plain concrete columns. The steel ratio would greatly influence the torque share between the steel tube and the core concrete. Then the torsional strength calculation formulas for core concrete and the whole CFT column were proposed. The proposed formula could be simpler and easier to use with guaranteed accuracy. Related design codes were more conservative than the proposed formula, but the proposed formula presented more satisfactory agreement with experimental results.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Hunan Province Preeminence Youth Fund

References

  1. Abed, F., AlHamaydeh, M. and Abdalla, S. (2013), "Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs)", J. Struct. Eng., 80, 429-439.
  2. Aslani, F., Uy, B., Wang, Z.W. and Petal, A. (2016), "Confinement models for high strength short square and rectangular concretefilled steel tubular columns", Steel Compos. Struct., Int. J., 22(5), 937-974. https://doi.org/10.12989/scs.2016.22.5.937
  3. Beck, J. and Kiyomiya, O. (2003), "Fundemental Pure Torsional Properties of Concrete Filled Circular Steel Tubes", J. Mater. Concrete Struct. Pavements, 60(739), 285-296.
  4. CECS28-2012, China Standard (2012), Technical specification for concrete-filled steel tubular structures, China Planning Press; Beijing, China.
  5. Chen, Y.W. (2003), "Research on torsion and section behavior of concrete-filled steel tubular columns", Master Dissertation; National Central University, Taiwan.
  6. Ding, F.X., Ying, X., Zhou, L. and Yu, Z.W. (2011), "Unified calculation method and its application in determining the uniaxial mechanical properties of concrete", Frontiers Architect. Civil Eng. China, 5(3), 381. https://doi.org/10.1007/s11709-011-0118-6
  7. Ding, F.X., Fu, Q., Wen, B., Zhou, Q. and Liu, X. (2018), "Behavior of circular concrete-filled steel tubular columns under pure torsion", Steel Compos. Struct., Int. J., 26(4), 501-511.
  8. Evirgen, B., Tuncan, A. and Taskin, K. (2014), "Structural behavior of concrete filled steel tubular sections (CFT/CFSt) under axial compression", Thin-Wall. Struct., 80(7), 46-56. https://doi.org/10.1016/j.tws.2014.02.022
  9. GB 50936-2014, China Standard (2014), Technical Code for Concrete Filled Steel Tubular Structures, China Construction Industry Press; Beijing, China.
  10. Gong, A. (1989), Experimental Study on Concrete Filled Steel Tubular Short Column under Combined Torsion and Compression, Beijing Institute of Civil Engineering and Architecture, Beijing, China.
  11. Han, L.H., Yao, G.H. and Tao, Z. (2007a), "Behaviors of concretefilled steel tubular members subjected to combined loading", Thin-Walled Structures, 45(6), 600-619. https://doi.org/10.1016/j.tws.2007.04.008
  12. Han, L.H., Yao, G.H. and Tao, Z. (2007b), "Performance of concrete-filled thin-walled steel tubes under pure torsion", Thin-Wall. Struct., 45(1), 24-36. https://doi.org/10.1016/j.tws.2007.01.008
  13. Hassanein, M.F. and Kharoob, O.F. (2014), "Analysis of circular concrete-filled double skin tubular slender columns with external stainless steel tube", Thin-Wall. Struct., 79(6), 23-27. https://doi.org/10.1016/j.tws.2014.01.008
  14. Kim, J.K., Kwak, H.G. and Kwak, J.H. (2013), "Behavior of Hybrid Double Skin Concrete Filled Circular Steel Tube Columns", Steel Compos. Struct., Int. J., 14(14), 191-204. https://doi.org/10.12989/scs.2013.14.2.191
  15. Kim, W.W., Mum, J.H. and Yang, K.H. (2015), "Simplified model for the stress-strain relationship of confined concrete", Steel Compos. Struct., Int. J., 31(4), 79-86.
  16. Kitada, T.N.H. (1991), "Experimental Study on Ultimate Strength of Concrete-filled Square Steel Short Members Subjected to Compression or Torsion", Proceedings of Inter. Confer. on Steel-Concrete Composite, Fukouka, Japan, September.
  17. Lai, M.H. and Ho, J.C.M. (2014), "Confinement effect of ringconfined concrete-filled-steel-tube columns under uni-axial load", Eng. Struct., 67(5), 123-141. https://doi.org/10.1016/j.engstruct.2014.02.013
  18. Lee, E.T., Yun, B.H., Shim, H.J., Chang, K.H. and Lee, G.C. (2009), "Torsional Behavior of Concrete-Filled Circular Steel Tube Columns", J. Struct. Eng., 135(10), 1250-1258. https://doi.org/10.1061/(ASCE)0733-9445(2009)135:10(1250)
  19. Liu, H.W. (2017), Mechanics of Materials, Higher Education Press, Beijing, China.
  20. Mashiri, F.R., Uy, B., Tao, Z. and Wang, Z.B. (2014), "Concretefilled VHS-to-steel fabricated section stub columns subjected to anxial compression", J. Constr. Steel Res., 95(4), 141-161. https://doi.org/10.1016/j.jcsr.2013.11.022
  21. Moon, J., Roeder, C.W. and Lehman, D.E. (2012), "Analytical modeling of bending of circular concrete filled steel tubes", Eng. Struct., 42(7), 58-66.
  22. Nie, J.G., Wang, Y.H. and Fan, J.S. (2012), "Experimental study on seismic behavior of concrete filled steel tube columns under pure torsion and compression-torsion cyclic load", J. Constr. Steel Res., 79(1), 115-126. https://doi.org/10.1016/j.jcsr.2012.07.029
  23. Patel, V.I., Uy, B., Prajwal, K.A. and Aslani, F. (2016), "Confined concrete model of circular, elliptical and octagonal CFST short columns" Steel Compos. Struct., Int. J., 22(3), 497-520. https://doi.org/10.12989/scs.2016.22.3.497
  24. Park, J.W. and Choi, S.M. (2013), "Structural behavior of CFRP strengthened concrete-filled steel tubes columns under axial compression loads", Steel Compos. Struct., Int. J., 14(5), 453-472. https://doi.org/10.12989/scs.2013.14.5.453
  25. Uenaka, K. and Tsunokake, H. (2016), "Concrete filled elliptical steel tubular members with large diameter-to-thickness ratio subjected to bending", Structures, 5(2), 58-66. https://doi.org/10.1016/j.istruc.2015.08.004
  26. Wang, Y.H. (2013), "Study on Torsion Effect in Concrete Filled Steel Tube Piers of Curved Girder Bridges", Ph.D. Dissertation; Tsinghua University, Beijing, China.
  27. Wang, Y.H., Nie, J.G. and Fan, J.S. (2016), "A new model for analyzing nonlinear torsion behavior of concrete filled steel tube columns with rectangular section", Earthq. Eng. Eng. Vib., 15(2), 269-282. https://doi.org/10.1007/s11803-016-0321-5
  28. Xiamuxi, A. and Akira, H. (2011), "Compression text of RCFT columns with thin-walled steel tube and high strength concrete", Steel Compos. Struct., Int. J., 11(5), 391-402. https://doi.org/10.12989/scs.2011.11.5.391

Cited by

  1. Numerical Study of Circular Concrete Filled Steel Tubes Subjected to Pure Torsion vol.11, pp.9, 2019, https://doi.org/10.3390/buildings11090397
  2. Torsional behaviour of concrete-filled circular steel tubular members under coupled compression and torsion vol.34, 2019, https://doi.org/10.1016/j.istruc.2021.08.026
  3. Confinement Effect and Efficiency of Concentrically Loaded RACFCST Stub Columns vol.15, pp.1, 2019, https://doi.org/10.3390/ma15010154