DOI QR코드

DOI QR Code

Experimental behavior of circular flyash-concrete-filled steel tubular stub columns

  • Zhang, Yang (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Fu, Guang-Yuan (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Yu, Chen-Jiang (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Chen, Bing (Department of Civil Engineering, Shanghai Jiao Tong University) ;
  • Zhao, She-Xu (Department of Engineering Mechanics, Shanghai Jiao Tong University) ;
  • Li, Si-Ping (Department of Engineering Mechanics, Shanghai Jiao Tong University)
  • 투고 : 2015.09.19
  • 심사 : 2016.10.28
  • 발행 : 2016.11.20

초록

The paper presents an experimental study of the structural behavior of circular flyash-concrete-filled steel tubular stub columns under axial compressive loads. In this study, 90% and 100% by weight of the cement in the concrete core was replaced with flyash. Twenty-seven specimens were tested to study the influence of flyash content, wall thickness of the steel tube, and curing age on the ultimate capacity and confinement effect. The experimental results were compared with the design values calculated using AISC-LRFD (1999), ACI (1999), AIJ (1997) and Eurocode 4 (1994). From the experimental study, it was determined that the confinement effect of circular steel tubes filled with high content flyash concrete was better than that of specimens filled with ordinary Portland cement concrete. The 5.88-mm-thick steel tube filled with 100% flyash concrete was equivalent in strength to a steel tube filled with C30 concrete at 28 days.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China

참고문헌

  1. Abdalla, S., Abed, F. and Alhamaydeh, M. (2013), "Behavior of CFSTs and CCFSTs under quasi-static axial compression", J. Constr. Steel Res., 90, 235-244. https://doi.org/10.1016/j.jcsr.2013.08.007
  2. Abed, F., Alhamaydeh, M. and Abdalla, S. (2013), "Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs)", J. Constr. Steel Res., 80, 429-439. https://doi.org/10.1016/j.jcsr.2012.10.005
  3. ACI 318-99 (1999), Building code requirements for structural concrete and commentary, American Concrete Institute, Farmington Hills, Detroit, MI, USA.
  4. AIJ (1997), Recommendations for design and construction of concrete filled steel tubular structures, Architectural Institute of Japan, Tokyo, Japan.
  5. AISC-LRFD (1999), Load and resistance factor design specification for structural steel building, American Institute of Steel Construction, Chicago, IL, USA.
  6. Bilodeau, A. and Malhotra, M. (2000), "High-volume fly ash system: Concrete solution for sustainable development", ACI Mater. J., 97(1), 41-48.
  7. Chen, B., Liu, X. and Li, S.P. (2011), "Performance investigation of square concrete-filled steel tube columns", J. Wuhan Univ. Technol., 26(4), 730-736. https://doi.org/10.1007/s11595-011-0302-5
  8. Chung, K.S., Kim, J.H. and Yoo, J.H. (2013), "Experimental and analytical investigation of high-strength concrete-filled steel tube square columns subjected to flexural loading", Steel Compos. Struct., Int. J., 14(2), 133-153. https://doi.org/10.12989/scs.2013.14.2.133
  9. Dinakar, P. (2012), "Design of self-compacting concrete with fly ash", Mag. Concr. Res., 64(5), 401-409. https://doi.org/10.1680/macr.10.00167
  10. Dinakar, P., Reddy, M.K. and Sharma, M. (2013), "Behaviour of self compacting concrete using Portland pozzolana cement with different levels of fly ash", Mater. Des., 46, 609-616. https://doi.org/10.1016/j.matdes.2012.11.015
  11. Eurocode 4 (1994), Design of composite steel and concrete structures - Part 1-1: General rules and rules for buildings, British Standards Institution, London, UK.
  12. 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, 46-56. https://doi.org/10.1016/j.tws.2014.02.022
  13. Gupta, P.K., Sarda, S.M. and Kumar, M.S. (2007), "Experimental and computational study of concrete filled steel tubular columns under axial loads", J. Constr. Steel Res., 63(2), 182-193. https://doi.org/10.1016/j.jcsr.2006.04.004
  14. Han, L.H., Yao, G.H. and Zhao, X.L. (2005), "Tests and calculations for hollow structural steel (HSS) stub columns filled with self-consolidating concrete (SCC)", J. Constr. Steel Res., 61(9), 1214-1269.
  15. Jiang, Z.W., Li, X.T., Sun, Z.P. and Wang, P.M. (2010), "Preparation and application of self-compacting concrete filled with steel pipe arch", J. Build. Mater., 13(2), 203-209. [In Chinese].
  16. Kayali, O. and Ahmed, M.S. (2013), "Assessment of high volume replacement fly ash concrete - Concept of performance index", Constr. Build. Mater., 39, 71-76. https://doi.org/10.1016/j.conbuildmat.2012.05.009
  17. Kvedaras, A.K., Sauciuvenas, G., Komka, A. and Jarmolajeva, E. (2015), "Analysis of behaviour for hollow/solid concrete-filled CHS steel beams", Steel Compos. Struct., Int. J., 19(2), 293-308. https://doi.org/10.12989/scs.2015.19.2.293
  18. Li, G.Y., Zhao, X.H., Wang, P.M. and Liu, X.P. (2006), "Behaviour of concrete-filled steel tubular columns incorporating flyash", Cem. Concr. Compos., 28(2), 189-196. https://doi.org/10.1016/j.cemconcomp.2005.10.005
  19. Siddique, R. (2011), "Properties of self-compacting concrete containing class F fly ash", Mater. Des., 32(3), 1501-1507. https://doi.org/10.1016/j.matdes.2010.08.043
  20. Xiao, C.Z., Cai, S.H., Chen, T. and Xu, C.L. (2012), "Experimental study on shear capacity of circular concrete filled steel tubes", Steel Compos. Struct., Int. J., 13(5), 437-449. https://doi.org/10.12989/scs.2012.13.5.437

피인용 문헌

  1. Assessment of stress-strain model for UHPC confined by steel tube stub columns vol.63, pp.3, 2016, https://doi.org/10.12989/sem.2017.63.3.371
  2. A new empirical formula for prediction of the axial compression capacity of CCFT columns vol.33, pp.2, 2019, https://doi.org/10.12989/scs.2019.33.2.181