Browse > Article
http://dx.doi.org/10.12989/scs.2016.22.3.663

Experimental study on the compression of concrete filled steel tubular latticed columns with variable cross section  

Yang, Yan (College of Civil Engineering, Fuzhou University)
Zhou, Jun (College of Civil Engineering, Fuzhou University)
Wei, Jiangang (College of Civil Engineering, Fuzhou University)
Huang, Lei (College of Civil Engineering and Architecture, Wuyi University)
Wu, Qingxiong (College of Civil Engineering, Fuzhou University)
Chen, Baochun (College of Civil Engineering, Fuzhou University)
Publication Information
Steel and Composite Structures / v.22, no.3, 2016 , pp. 663-675 More about this Journal
Abstract
The effects of slenderness ratio, eccentricity and column slope on the load-carrying capacities and failure modes of variable and uniform concrete filled steel tubular (CFST) latticed columns under axial and eccentric compression were investigated and compared in this study. The results clearly show that all the CFST latticed columns with variable cross section exhibit an overall failure, which is similar to that of CFST latticed columns with a uniform cross section. The load-carrying capacity decreases with the increase of the slenderness ratio or the eccentricity. For 2-m specimens with a slenderness ratio of 9, the ultimate load-carrying capacity is increased by 3% and 5% for variable CFST latticed columns with a slope of 1:40 and 1:20 as compared with that of uniform CFST latticed columns, respectively. For the eccentrically compressed variable CFST latticed columns, the strain of the columns at the loading side, as well as the difference in the strain, increases from the bottom to the cap, and a more significant increase in strain is observed in the cross section closer to the column cap.
Keywords
concrete filled steel tubular latticed columns; axial compression; eccentric compression; stress mechanism; failure mode; load-carrying capacity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Ou, Z.J., Chen, B.C., Hsieh, K.H., Halling, M.W. and Barr, P.J. (2011), "Experimental and analytical investigation of concrete filled steel tubular columns", J. Struct. Eng., 137(6), 635-645.   DOI
2 Pual, M. (1995), "Buckling loads of built-up columns with stay plates", ASCE, J. Eng. Mech., 121(11), 1200-1208.   DOI
3 Qu, X.S., Chen, Z.H. and Sun, G.J. (2015), "Axial behavior of rectangular concrete-filled cold-formed steel tubular columns with different loading methods", Steel Compos. Struct., Int. J., 8(1), 71-90.
4 Razdolsky, A.G. (2011), "Calculation of slenderness ratio for laced columns with serpentine and crosswise lattices", J. Construct. Steel Res., 67(1), 25-29.   DOI
5 Samofalov, M. and Slivinskas, T. (2009), "Stability analysis of steel frames with variable cross-section for sports and entertainment centre", MECHANIKA, 5(79), 5-12.
6 Shi, L.Y., Li, Z.B. and Zhang, Z.Y. (2012), "The experimental research on the vertical and horizontal bearing capacity of hollow latticed steel columns", Adv. Mater. Res., 461, 425-428.   DOI
7 Xue, J.Y., Gao L., Liu, Z.Q., Zhao, H.T. and Chen, Z.P. (2014), "Experimental study on mechanical performances of lattice steel reinforced concrete inner frame with irregular section columns", Steel Compos. Struct., Int. J., 16(3), 253-267.   DOI
8 An, Y.F., Han, L.H. and Zhao, X.L. (2012), "Behavior and design calculations on very slender thin-walled CFST columns", Thin-Wall. Struct., 53, 161-175.   DOI
9 Banan, M.R. and Fouladi, A. (2015), "A super-element based on finite element method for latticed columns", Int. J. Civil Eng., 13(2), 202-212.
10 Bleich, F. (1952), Buckling Strength of Metal Structures, McGraw-Hill Book Company, New York, NY, USA.
11 Dai, S.J., Yang, L. and Jia, Y.H. (2013), "A study on the formulas of effective slenderness ratio of three-leg laced lattice column", Appl. Mech. Mater., 405-408, 940-943.   DOI
12 CECS 28: 90 (2012), Specification for design and construction of concrete filled steel tubular structures, Harbin Jianzhu University and China Academy of Building Research, Harbin, China. [In Chinese]
13 Chen, B.C. (2002), Examples of Concrete Filled Steel Tubular Arch Bridges (One), Communications Press, Beijing, China. [In Chinese]
14 Cristutiu, I.M. and Dogariu, A.I. (2012), "The behaviour of beam-column elements with variable I crosssections considering lateral restraints", Proceedings of the 11th International Conference on Computational Structures Technology, Dubrovnik, Croatia, September, pp. 1-15.
15 Han, L.H., He, S.H. and Liao, F.Y. (2011), "Performance and calculations of concrete filled steel tubes (CFST) under axial tension", J. Construct. Steel Res., 67(11), 1699-1709.   DOI
16 Jiang, L.Z., Zhou, W.B. and Qi, J.J. (2011), "Numerical method and experimental study on the ultimate load carrying capacity of four-tube CFST latticed columns", J. Adv. Mater. Res., 163-167, 2224-2233.
17 Lee, G.C., Ketter, R.L. and Hsu, T.L. (1981), "The design of single story rigid frames", Metal Building Manufacture's Association, Cleveland, OH, USA.
18 Li, J.J. and Li, G.Q. (2004), "Buckling analysis of tapered lattice columns using a generalized finite element", Commun. Numer. Method. Eng., 20(6), 479-488.   DOI
19 Mijailovic, R. (2010), "Optimum design of lattice-columns for buckling", J. Struct. Multidiscipl. Optimiz., 42(6), 897-906.   DOI
20 Mohri, F., Damil, N. and Potier-Ferry, M. (2013), "Buckling and lateral buckling interaction in thin-walled beam-column elements with mono-symmetric cross sections", Appl. Math. Model., 37(5), 3526-3540.   DOI