Local Buckling of Rectangular Concrete-Filled Steel Tubular (CFT) Columns with Binding Bars Subjected to Axial Compression Using the Rayleigh-Ritz Method.

Document Type : Original Article

Authors

1 Assistant Professor, Department of Engineering, Yasouj University, Yasouj, Iran

2 Department of Engineering, Yasouj University

Abstract

In Concrete-Filled Steel Tubular (CFT) Columns with binding bars, horizontal binding bars arranged along the steel tubes are used to enhance the confinement effects on the core concrete and to postpone the initiation of local buckling. So, they have higher strength, more stiffness, better ductility and larger energy absorption compared to conventional CFT columns. In this paper, the unilateral buckling of steel plates in CFT Columns with binding bars under axial compression is investigated by the Rayleigh-Ritz method, using the shape functions of a rectangular plate with appropriate boundary conditions. It is assumed that the unloaded edges of the steel plate are elastically restrained against rotation. Trigonometrical functions that satisfy the boundary conditions of the rectangular plate are used to define the shape functions. In unilateral buckling, the folled concrete is described as an elastic foundation with high stiffness in compression and without tensile stiffness, such that buckling occurs in only one direction. The Lagrange multiplier technique is used to model the binding bars. The solution algorithms of the problems are written in MATLAB code. The solution of this process is used to obtain the elasto-plastic local buckling load of unilaterally-restrained steel plate with various numbers of binding bolts depends on spacing between them. Finally, the numerical results were compared with experiment results. The excellent agreements of the results verify the accuracy and efficiency of the method.

Keywords

Main Subjects

References

[1] Smith, John, and Alex Coull. Analysis & Design. Wiley and sons, New York, 1991.
[2] Uy, B., and Mark Andrew Bradford. "Local buckling of thin steel plates in composite construction: Experimental and theoretical study." Proceedings of the Institution of Civil Engineers-Structures and Buildings 110, no. 4 (1995): 426-440.
[3] Wright, H. D. "Buckling of plates in contact with a rigid medium." Structural Engineer 71, no. 12 (1993).
[4] Smith, Scott T., M. A. Bradford, and D. J. Oehlers. "Elastic buckling of unilaterally constrained rectangular plates in pure shear." Engineering Structures 21, no. 5 (1999): 443-453.
[5] Smith, Scott Thomas, Mark Andrew Bradford, and Deric John Oehlers. "Local buckling of side-plated reinforced-concrete beams. II: experimental study." Journal of Structural Engineering 125, no. 6 (1999): 635-643.
[6] Smith, Scott Thomas, Mark Andrew Bradford, and Deric John Oehlers. "Local buckling of side-plated reinforced-concrete beams. I: Theoretical study." Journal of Structural Engineering 125, no. 6 (1999): 622-634.
[7] Huang, M-H., and D. P. Thambiratnam. "Analysis of plate resting on elastic supports and elastic foundation by finite strip method." Computers & Structures 79, no. 29-30 (2001): 2547-2557.
[8] Hedayati, P., M. Azhari, A. R. Shahidi, and M. A. Bradford. "On the use of the Lagrange Multiplier Technique for the unilateral local buckling of point-restrained plates, with application to side-plated concrete beams in structural retrofit." Structural Engineering and Mechanics 26, no. 6 (2007): 673-685.
[9] Rahai, A., and F. Hatami. "Evaluation of composite shear wall behavior under cyclic loadings." Journal of constructional steel research 65, no. 7 (2009): 1528-1537.
[10] Rahai, A., and F. Hatami. "Evaluation of composite shear wall behavior under cyclic loadings." Journal of constructional steel research 65, no. 7 (2009): 1528-1537.
[11] Dayyani, Iman, Masih Moore, and Alireza Shahidi. "Unilateral buckling of point-restrained triangular plates." Thin-Walled Structures 66 (2013): 1-8.
[12] Furlong, Richard W. "Strength of steel-encased concrete beam columns." Journal of the Structural Division 93, no. 5 (1967): 113-124.
[13] Furlong, Richard W. "Design of steel-encased concrete beam-columns." Journal of the Structural Division 94, no. 1 (1968): 267-282.
 [14] Knowles, Robert B., and Robert Park. "Strength of concrete filled steel columns." Journal of the structural division (1969).
[15] Tomii, Masahide. "Experimental studies on concrete filled steel tubular stub columns under concentric loading." In Proceedings of International Colloquium on Stability of Structures Under Static and Dynamic Loads, SSRC/ASCE/Washington, DC. (1977).
[16] Ge, Hanbin, and Tsutomu Usami. "Strength of concrete-filled thin-walled steel box columns: experiment." Journal of structural engineering 118, no. 11 (1992): 3036-3054.
[17] Ge, H. B., and T. Usami. "Strength analysis of concrete-filled thin-walled steel box columns." Journal of Constructional Steel Research 30, no. 3 (1994): 259-281.
 [18] Schneider, Stephen P. "Axially loaded concrete-filled steel tubes." Journal of structural Engineering 124, no. 10 (1998): 1125-1138.
 [19] Uy, Brian. "Strength of concrete filled steel box columns incorporating local buckling." Journal of Structural Engineering 126, no. 3 (2000): 341-352.
 [20] Uy, Brain. "Strength of short concrete filled high strength steel box columns." Journal of Constructional Steel Research 57, no. 2 (2001): 113-134.
 [21] Sakino, Kenji, Hiroyuki Nakahara, Shosuke Morino, and Isao Nishiyama. "Behavior of centrally loaded concrete-filled steel-tube short columns." Journal of structural engineering 130, no. 2 (2004): 180-188.
 [22] Liu, Dalin, and Wie-Min Gho. "Axial load behaviour of high-strength rectangular concrete-filled steel tubular stub columns." Thin-Walled Structures 43, no. 8 (2005): 1131-1142.
 [23] Roeder, Charles W., Dawn E. Lehman, and Ryan Thody. "Composite action in CFT components and connections." ENGINEERING JOURNAL-AMERICAN INSTITUTE OF STEEL CONSTRUCTION INC 46, no. 4 (2009): 229-242
 [24] Ou, Zhijing, Baochun Chen, Kai H. Hsieh, Marvin W. Halling, and Paul J. Barr. "Experimental and analytical investigation of concrete filled steel tubular columns." Journal of Structural Engineering 137, no. 6 (2011): 635-645..
 [25] Abed, Farid, Mohammad AlHamaydeh, and Suliman Abdalla. "Experimental and numerical investigations of the compressive behavior of concrete filled steel tubes (CFSTs)." Journal of Constructional Steel Research 80 (2013): 429-439.
 [26] Abdalla, Suliman, Farid Abed, and Mohammad AlHamaydeh. "Behavior of CFSTs and CCFSTs under quasi-static axial compression." Journal of Constructional Steel Research 90 (2013): 235-244.
 [27] Wang, Ying-Tao, Jian Cai, and Yue-Ling Long. "Hysteretic behavior of square CFT columns with binding bars." Journal of Constructional Steel Research 131 (2017): 162-175.
 [28] Wang, Zhi-Bin, Zhong Tao, Lin-Hai Han, Brian Uy, Dennis Lam, and Won-Hee Kang. "Strength, stiffness and ductility of concrete-filled steel columns under axial compression." Engineering Structures 135 (2017): 209-221.
 [29] Liang, Qing Quan. "Nonlinear analysis of circular double-skin concrete-filled steel tubular columns under axial compression." Engineering Structures 131 (2017): 639-650.
 [30] Dong, C. X., A. K. H. Kwan, and J. C. M. Ho. "A constitutive model for predicting the lateral strain of confined concrete." Engineering Structures 91 (2015): 155-166.
 [31] Liang, Qing Quan, Brian Uy, and JY Richard Liew. "Local buckling of steel plates in concrete-filled thin-walled steel tubular beam–columns." Journal of Constructional Steel Research 63, no. 3 (2007): 396-405.
[32] Chen, Cheng-Cheng, Jen-Wen Ko, Guo-Luen Huang, and Ying-Muh Chang. "Local buckling and concrete confinement of concrete-filled box columns under axial load." Journal of Constructional Steel Research 78 (2012): 8-21.
[33] Cai, Jian, and Zhen-Qiang He. "Axial load behavior of square CFT stub column with binding bars." Journal of Constructional Steel Research 62, no. 5 (2006): 472-483..
[34] Cai, Jian, and Yue-ling Long. "Local buckling of steel plates in rectangular CFT columns with binding bars." Journal of Constructional Steel Research 65, no. 4 (2009): 965-972.
[35] Long, Yue-Ling, and Lin Zeng. "A refined model for local buckling of rectangular CFST columns with binding bars." Thin-Walled Structures 132 (2018): 431-441.
[36] Wan, Jun, Jian Cai, Yue-Ling Long, and Qing-Jun Chen. "Local buckling of rectangular concrete-filled steel tubular columns with binding bars under eccentric compression." Advances in Structural Engineering (2020): 1369433220911117.
[37] Bleich, Friedrich. "Buckling strength of metal structures." Mc Graw-Hill Book Company, Inc., Cardnr. 51-12588 (1952).

Files

History

  • Receive Date: 20 September 2020
  • Revise Date: 18 November 2020
  • Accept Date: 19 January 2021

Share

How to cite

Statistics