International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Shaik Madeena Imam Shah, G. Mohan Ganesh*

School of Civil Engineering, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India


 

Download Citation: |
Download PDF


ABSTRACT


Twenty-four circular Concrete Filled Steel Tube (CFST) columns divided in to three series based on their cross-sectional dimensions were subjected to uni-axial compression and their behaviour is studied. This paper aims to develop the volume of experimental database as there is shortage in data that can assess the guidance from the codes and enhances their accuracy in determining the ultimate capacities and the behaviour of CFST specimens subjected to uni axial compression. This study consists of CFST specimens having outer diameter of 76 mm, 89 mm and 100 mm with same wall thickness of 3 mm having four Length to Diameter (L/D) ratios of 3, 4, 5 and 6. Impact of D/t on the parameters like confinement (ξ), strength index (SI), relative slenderness ratio (λ), percentage contribution of steel and concrete and ductility index (DI) were studied. Further, the axial compressive load values were compared with the predicted design values of codes, namely, Eurocode – 4 (EC4), American code (AISC 360-10), Australian code (AS5100), Chinese code (DBJ13-51) and American Concrete Institute (ACI-318). A design equation is proposed to calculate the ultimate axial load and the predicted results are near to the test results. To check the accuracy of the proposed equation, experimental results of 63 CFST circular columns from the literatures were compared with proposed equation and found the results to be conservative.  At last, finite element analysis using ABAQUS was done to study the behaviour of column buckling, axial load and displacement curves. Results showed good agreement with experimental test results.


Keywords: Concrete contribution ratio, Ductility index, Length to diameter, Overestimated, Underestimated.


Share this article with your colleagues

 


REFERENCES


  1. Abed, F., Alhamaydeh, M., Abdalla, S. 2013. Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs). Journal of Constructional Steel Research, 80, 429–439.

  2. Ahmad, S., Kumar, A., Kumar, K. 2020. Axial performance of GGBFS concrete filled steel tubes. Structures, 23, 539–550.

  3. AS 5100.6-2004. Bridge Design part 6: steel and composite construction. AS. Sydney.

  4. Beck, A.T., de Oliveira, W.L.A., De Nardim, S., El Debs, A.L.H.C. 2009. Reliability-based evaluation of design code provisions for circular concrete-filled steel columns. Engineering Structures, 31, 2299–2308.

  5. Chen, C., Wang, C., Sun, H. 2014. Experimental study on seismic behavior of full encased steel-concrete composite columns. Journal of Structural Engineering, 140, 4024-4034.

  6. Chitawadagi, M.V., Narasimhan, M.C., Kulkarni, S.M. 2010. Axial strength of circular concrete-filled steel tube columns - DOE approach. Journal of Constructional Steel Research, 66, 1248–1260.

  7. Dar, M.A., Subramanian, N., Anbarasu, M., Ghowsi, A.F, Arif, P.A., Dar, A.R. 2021. Testing and FE simulation of lightweight CFS composite built-up columns: Axial strength and deformation behaviour. Thin-Walled Structures, 167, 108222.

  8. Dundu, M. 2012. Compressive strength of circular concrete filled steel tube columns. Thin Walled Structures, 56, 62–70.

  9. Ekmekyapar, T., Al-Eliwi, B. J. M. 2016. Experimental behaviour of circular concrete filled steel tube columns and design specifications. Thin Walled Structures, 220–230.

  10. EN 1994-1-1 Eurocode 4. Design of composite steel and concrete structures – part 1-1: General rules and rules for buildings. CEN. Brussels.

  11. Evirgen, B., Tuncan, A., Taskin, K. 2014. Structural behavior of concrete filled steel tubular sections (CFT/CFSt) under axial compression. Thin Walled Structures, 80, 46–56.

  12. Fang, H., Visintin, P. 2021. Structural performance of geopolymer-concrete filled steel tube members subjected to compression and bending. Journal of Constructional Steel Research, 188, 107026.

  13. Feng, Y., Chen, L., Shuangshuang, B., Huang, W., Yuan, F. 2020. Experimental and theoretical investigations of recycled self-compacting concrete filled steel tubular columns subjected to axial compression. Construction and Building Materials, 248, 689–706.

  14. Giakoumelis, G., Lam, D. 2004. Axial capacity of circular concrete-filled tube columns. Journal of Constructional Steel Research, 60, 1049–1068.

  15. Han, L.H. 2002. Tests on stub columns of concrete filled RHS sections. Journal of constructional steel research, 58, 353–372.

  16. Han, L.H., Yao, G.H., Zhao, X.L. 2005. Tests and calculations for hollow structural steel (HSS) stub columns filled with self-consolidating concrete (SCC). Journal of Constructional Steel Research, 61, 1241–1269.

  17. Hu, H.T., Huang, C.S., Wu, M.H., Wu, Y.M. 2003. Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect. Journal of Structural Engineering, 129, 1322–1329.

  18. Idris, Y., Ozbakkaloglu, T. 2013. Seismic behavior of high-strength concrete-filled FRP tube columns. Journal of Composites for Construction, 17, 3013–3026.

  19. Kato, B. 1996. Column Curves of Steel-Concrete Composite Members. Journal of Constructional Steel Research, 39, 121–135.

  20. Kazemzadeh, A.S., Brian, U. 2020. Effect of concrete infill on local buckling capacity of circular tubes. Journal of Constructional Steel Research, 165, 899-921.

  21. Li, N., Lu, Y., Li, S., Gao, D. 2020. Axial compressive behaviour of steel fibre reinforced self-stressing and self- compacting concrete-filled steel tube columns. Engineering Structures, 222, 108–120.

  22. Liang, W., Dong, J.F., Yuan, S.C., Wang., Q.Y. 2017. Behavior of self-compacting concrete-filled steel tube columns with inclined stiffener ribs under axial compression. Strength of Materials, 49, 125–132.

  23. Liu, D., Gho, W.M. 2005. Axial load behaviour of high-strength rectangular concrete-filled steel tubular stub columns. Thin Walled Structures, 43, 1131–1142.

  24. Liu, Z., Lu, Y., Li, S. Yi, S. 2019. Behavior of steel tube columns filled with steel-fiber-reinforced self-stressing recycled aggregate concrete under axial compression. Thin Walled Structures, 149, 521–529.

  25. Lu, Y., Zhenzhen, L., Shan, L., Xiaobo, Z. 2019. Effect of the outer diameter on the behavior of square RC columns strengthened with self-compacting concrete filled circular steel tube. International Journal of Steel Structures, 19, 1042–1054.

  26. Ou, Z., Chen, B., Hsieh, K.H., Halling, M.W., Barr, P.J. 2011. Experimental and analytical investigation of concrete filled steel tubular columns. Journal of Structural Engineering, 137, 635–645.

  27. Sakino, K., Nakahara, H., Morino, S., Nishiyama, I. 2004. Behavior of centrally loaded concrete-filled steel-tube short columns. Journal of Structural Engineering, 130, 180–188.

  28. Shanmugam, N.E., Lakshmi, B. 2001. State of the art report on steel – concrete composite columns. Journal of Constructional Steel Research, 57, 1041–1080.

  29. Wang, W., Ma, H., Li, Z., Tang, Z. 2017. Size effect in circular concrete-filled steel tubes with different diameter-to-thickness ratios under axial compression. Engineering Structures, 151, 554–567.

  30. Wang, Y., Ligui, Y., Yang, H., Changyong, L. 2019. Behaviour of concrete-filled corrugated steel tubes under axial compression. Engineering Structures, 18, 475–95.

  31. Wu, Y.Z., Xing, D.F., Cai, C.S. 2007. Experimental behavior of circular concrete-filled steel tube stub columns. Journal of Constructional Steel Research, 63, 165–174.
  32. Xiao, Y., He, W., Choi, K.K. 2005. Confined concrete-filled tubular columns. Journal of Structural Engineering, 131, 488–497.

  33. Yu, M., Zha, X., Ye, J., She, C. 2010. A unified formulation for hollow and solid concrete filled steel tube columns under axial compression. Engineering Structures, 32, 1046-1053.

  34. Zeghiche. J., Chaoui, K. 2005. An experimental behaviour of concrete-filled steel tubular columns. Journal of Constructional Steel Research, 61, 53–66.

  35. Zhao, X.L., Han, L.H., Lu, H. 2010. Concrete filled tubular members and connections. Spon press. London.

  36. Zhao, H.L., Zhao, Y., Ying, C.J. 2018. A simple formula for predicting the compressive strength of circular CFT stub columns. Journal of Asian Architecture and Building Engineering, 8, 167–173.

  37. Zhou, S., Qing, S., Xiaohong, W. 2018. Impact of d/t ratio on circular concrete-filled high-strength steel tubular stub columns under axial compression. Thin Walled Structures, 132, 461–474.


ARTICLE INFORMATION


Received: 2021-11-10
Revised: 2022-02-14
Accepted: 2022-03-23
Available Online: 2022-05-27


Cite this article:

Shah, S.M.I., Ganesh, G.M., Impact of diameter to thickness (D/t) on axial capacity of circular CFST columns: Experimental, parametric and numerical analysis. International Journal of Applied Science and Engineering, 19, 2021486. https://doi.org/10.6703/IJASE.202206_19(2).005

  Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.