Steel and Composite Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Axial compressive behavior of special-shaped concrete filled tube mega column coupled with multiple cavities

  • Wu, Haipeng (College of Architecture and Civil Engineering, Beijing University of Technology) ;
  • Qiao, Qiyun (College of Architecture and Civil Engineering, Beijing University of Technology) ;
  • Cao, Wanlin (College of Architecture and Civil Engineering, Beijing University of Technology) ;
  • Dong, Hongying (College of Architecture and Civil Engineering, Beijing University of Technology) ;
  • Zhang, Jianwei (College of Architecture and Civil Engineering, Beijing University of Technology)
  • Received : 2015.01.01
  • Accepted : 2017.02.14
  • Published : 2017.04.30
⟨ Previous Next ⟩

Abstract

The compressive behavior of special-shaped concrete filled tube (CFT) mega column coupled with multiple cavities is studied by testing six columns subjected to cyclically uniaxial compressive load. The six columns include three pentagonal specimens and three hexagonal specimens. The influence of cavity construction, arrangement of reinforcement, concrete strength on failure feature, bearing capacity, stiffness, and residual deformation is examined. Experimental results show that cavity construction and reinforcements make it possible to form a combined confinement effect to in-filled concrete, and the two groups of special-shaped CFT columns show good elastic-plastic compressive behavior. As there is no axial bearing capacity calculation method currently available in any Code of practice for special-shaped CFT columns, values predicted by normal CFT column formulas in GB50936, CECS254, ACI-318, EC4, AISCI-LRFD, CECS159, and AIJ are compared with tested values. The calculated values are lower than the tested values for most columns, thus the predicted bearing capacity is safe. A reasonable calculation method by dividing concrete into active and inactive confined regions is proposed. And high accuracy shows in estimating special-shaped CFT columns either coupled with multiple cavities or not. In addition, a finite element method (FEM) analysis is conducted and the simulated results match the test well.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

References

  1. ACI 318 (2011), Building code requirement for structural concrete and commentary; American Concrete Institute, Farmington Hills, MI, USA.
  2. AIJ (2001), Standard for structure calculation of steel reinforced concrete structures, Architectural Institute of Japan; Tokyo, Japan.
  3. AISC-LRFD (1999), Load and resistance factor design specification; American Institute of Steel Construction, Chicago, USA.
  4. Baltay, P. and Gjelsvik, A. (1990), "Coefficient of friction for steel on concrete at high normal stress", J. Mater. Civil Eng., 2(1), 46-49. https://doi.org/10.1061/(ASCE)0899-1561(1990)2:1(46)
  5. BS EN 1994-1-1 (2004), Eurocode 4: Design of composite steel and concrete structures-part 1-1: general rules for buildings; British Standard Institution, London, UK.
  6. CECS 159 (2004), Technical specification for structures with concrete-filled rectangular steel tube members; China Association for Engineering Construction Standardization, Beijing, China.
  7. CECS 254 (2012), Technical specification for solid and hollow concrete-filled steel tubular structure; China Association for Engineering Construction Standardization, Beijing, China.
  8. Chithira, K. and Baskar, K. (2014), "Experimental study on circular concrete filled steel tubes with and without shear connectors", Steel Compos. Struct., Int. J., 16(1), 99-116.
  9. Du, G.F., Song, X. and Yu, S.P. (2013), "Experimental research on axially loaded composite L-section steel tubular short columns filled with steel-reinforced concrete", J. Build. Struct., 34(8), 82-89.
  10. GB/T 50081 (2011), Standard for test method of mechanical properties on ordinary concrete; Standards Press of China, Beijing, China.
  11. GB/T 228.1 (2010), Metallic materials-Tensile testing-Part 1: method of test at room temperature; Standard Press of China, Beijing, China.
  12. GB 50936 (2014), Technical code for concrete filled steel tubular structures; China Architecture & Building Press, Beijing, China.
  13. Guo, Z.H. and Shi, X.D. (2015), Reinforced Concrete Theory and Analyse, (3rd Edition), Tsinghua University Press, Beijing, China.
  14. Gupta, P.K., Verma, V.K. and Khaudhair, Z.A. (2015), "Effect of tube area on the behavior of concrete filled tubular columns", Comput. Concrete, Int. J., 15(2), 141-166. https://doi.org/10.12989/cac.2015.15.2.141
  15. Han, L.H., Liu, W. and Yang, Y.F. (2008), "Behaviour of concretefilled steel tubular stub columns subjected to axially local compression", J. Constr. Steel Res., 64(4), 377-387. https://doi.org/10.1016/j.jcsr.2007.10.002
  16. Hua, W., Wang, H.J. and Hasegawa, A. (2014), "Experimental study on reinforced concrete filled circular steel tubular columns", Steel Compos. Struct., Int. J., 17(4), 517-533. https://doi.org/10.12989/scs.2014.17.4.517
  17. Jamaluddin, N., Lam, D. and Dai, X.H. (2013), "An experimental study on elliptical concrete filled columns under axial compression", J. Constr. Steel Res., 87, 6-16. https://doi.org/10.1016/j.jcsr.2013.04.002
  18. Kim, H.S. and Kang, J.W. (2012), "An efficient structural analysis of super tall mega frame buildings using a multi-level condensation method", J. Asian Architect. Build. Eng., 11(2), 343-350. https://doi.org/10.3130/jaabe.11.343
  19. Lee, D., Ha, T. and Jung, M. (2014), "Evaluating high performance steel tube-framed diagrid for high-rise buildings", Steel Compos. Struct., Int. J., 16(3), 289-303. https://doi.org/10.12989/scs.2014.16.3.289
  20. Li, X.P. and Lu, X.L. (2008), "Modelling and experimental verification on concrete-filled steel tubular columns with T or L section", Progress Steel Build. Struct., 10(4), 56-62.
  21. Li, G.C., Yang, Z.J., Lang, Y. and Fang, C. (2016), "Behavior of CFST columns with inner CFRP tube under biaxial eccentric loading", Steel Compos. Struct., Int. J., 22(6), 1487-1505. https://doi.org/10.12989/scs.2016.22.6.1487
  22. Liu, P., Yin, C. and Li, X. (2012), "Structural system design and study of Tianjin Goldin 117 mega tower", Build. Struct., 43(3), 1-9.
  23. Qian, J.R., Zhang, Y. and Ji, X.D (2011), "Test and analysis of axial compressive behavior of short composite-sectioned high strength concrete filled steel tubular columns", J. Build. Struct., 32(12), 162-169.
  24. Shen, Z.Y., Lei, M. and Li, Y.Q. (2013), "Experimental study on seismic behavior of concrete-filled L-shaped steel tube columns", Adv. Struct. Eng., 16(7), 1235-1247. https://doi.org/10.1260/1369-4332.16.7.1235
  25. Tu, Y.Q., Shen, Y.F. and Li, P. (2014), "Behaviour of multi-cell composite T-shaped concrete-filled steel tubular columns under axial compression", Thin-Wall. Struct., 85, 57-70. https://doi.org/10.1016/j.tws.2014.08.003
  26. Wang, L.C., Wang, X.J. and Ji, D.H. (2012), "Structural design and analysis on Dalian Guomao Tower", Build. Struct., 42(2), 74-80.
  27. Zha, X.X., Li, Y.T. and Zhong, S.T. (2010), "Unified formula of Circular, polygonal, solid, hollow concrete filled steel tube columns under axial compression", Proceedings of the 2010 National Symposium of Steel Structure, Beijing, China, October.
  28. Zuo, Z.L., Cai, J. and Yang, C. (2012), "Axial load behavior of Lshaped CFT stub columns with binding bars", Eng. Struct., 37, 88-98. https://doi.org/10.1016/j.engstruct.2011.12.042

Cited by

  1. Seismic behavior of reinforced concrete T-shaped columns under compression-bending-shear and torsion vol.20, pp.4, 2017, https://doi.org/10.12989/eas.2021.20.4.431
  2. Bearing capacity of H-section beam wrapped with ceramsite concrete vol.40, pp.5, 2021, https://doi.org/10.12989/scs.2021.40.5.679