The structural performance of axially loaded CFST columns under various loading conditions

다국어 초록 (Multilingual Abstract)

Concrete filled steel tube (CFST) structures have been used widely in high-rise buildings and bridges due to the efficiency of structurally favourable interaction between the steel tube and the concrete core. In the current design codes only one loading condition in the column members is considered, i.e., the load is applied on the steel tube and concrete core at the same time. However, in engineering practice the tube structures may be subjected to various loading conditions such as loading on the concrete core only, preloading on the steel tube skeleton before filling of concrete core, and so on. In this research, a series of comparative experiments were carried out to study the structural performance of concrete filled circular steel tube columns subject to four concentric loading schemes. Then, a generalized prediction method is developed to evaluate the ultimate load capacity of CFST columns subject to various loading conditions. It is shown that the predictions by the proposed method agree well with test results.

참고문헌 (Reference)

1 Starossek, U., "The interaction of steel tube and concrete core in concrete-filled steel tube columns, In Tube Structures XII" Taylor & Francis Group 75-84, 2008

2 W.C. Zhu, "The 3D-numerical simulation on failure process of concrete-filled tubular (CFT) stub columns under uniaxial compression" 국제구조공학회 9 (9): 257-273, 2012

3 Han, L. H., "Tests on curved concrete filled steel tube members subjected to axial compression" 2011

4 O’Shea, M.D., "Tests on circular thin-walled steel tubes filled with medium and high strength concrete" School of Civil Engineering, University of Sydney, Australia 1997

5 Johansson, M., "Structural behaviour of circular composite columns under various means of load application" 2000

6 Knowles, R.B., "Strength of Concrete Filled Steel Tube Columns" 95 (95): 2565-2587, 1969

7 "Specification for design and construction of concrete-filled steel tube structures" China Planning Press 1992

8 Chen, B.C., "Overview of Concrete Filled Steel Tube Arch Bridges in China" 2009

9 Alireza Bahrami, "Nonlinear analysis of concrete-filled steel composite columns subjected to axial loading" 국제구조공학회 39 (39): 383-398, 2011

10 Gourley, B. C., "NSEL Report: A Synopsis of Studies of the Monotonic and Cyclic Behaviour of Concrete-Filled Steel Tube Members, Connections, and Frames" 2008

11 Johansson, M., "Mechanical behaviour of circular steel-concrete composite stub columns" 128 (128): 1073-1081, 2002

12 American Institute of Steel Construction, "Manual for structural steel buildings: Load and Resistance Factor Design (LRFD)"

13 Alifujiang Xiamuxi, "Load-sharing ratio analysis of reinforced concrete filled tubular steel columns" 국제구조공학회 12 (12): 523-540, 2012

14 Kuranovas, A., "Load-bearing capacity of concrete-filled steel columns" 15 (15): 21-33, 2009

15 Zha, X. X., "Investigation on the behaviour of concrete filled steel tube compression-bending-torsion members under the initial stress" Harbin University of C.E. Architecture 1996

16 Wang, Y., "Influence of load conditions on mechanical behaviour of CFST stub columns subjected to axial compression" 37 (37): 40-44, 2005

17 "Hybrid Structure Series 02 (JSCE), Guidelines for performance verification of steel-concrete hybrid structures"

18 "GB 50017, Code for Design of Steel Structures"

19 Gupta, P. K., "Experimental and computational study of concrete filled steel tube columns under axial loads" 63 (63): 182-193, 2007

20 "Eurocode 4 (EC4), Design of composite steel and concrete structures, Part 1.1: General rules and rules for buildings"

21 Liew, J.Y.R., "Effect of preload on the axial capacity of concrete-filled composite columns" 65 : 709-722, 2009

22 O’Shea, M.D., "Design of circular thin-walled concrete filled steel tubes" 126 (126): 1295-1303, 2000

23 China Building Material Industry Standard(JCJ), "Design and Construction Specifications for concrete filled steel tube structures (JCJ01-89)" Tongji University Press 1989

24 China Electric Power Industry Standard(DL/T), "Design Specifications for Steel-Concrete Composite Structures (DL/T5085-1999)" China Electric Power Press 1999

25 Goode, C.D., "Concrete-filled steel tube columns - tests compared with Eurocode 4, Composite Construction VI, July 20-24, Devil's Thumb Ranch"

26 Cai, S., "Calculation and application of concrete-filled steel tubes" China Architecture & Building Press 1989

27 American Concrete Institute, "Building code requirements for structural concrete and commentary"

28 Han, L.H., "Behaviour of concrete-filled hollow structural steel(HSS)columns with preload on the steel tubes" 59 (59): 1455-1475, 2003

29 Manojkumar, V. C., "Axial strength of circular concrete-filled steel tube columns-DOE approach" 66 : 1248-1260, 2010

30 X. Dai, "Axial compressive behaviour of stub concrete-filled columns with elliptical stainless steel hollow sections" 국제구조공학회 10 (10): 517-539, 2010

31 Australia Standards, "AS4100 Steel structures"