Behavior of high-strength circular concrete-filled steel tubular (CFST) column under eccentric loading

Abstract In this study, to estimate the behavior of a circular CFST column under eccentric loading, an experimental test and fiber element analysis on 11 circular stub CFST column specimens were conducted. The parameters of specimens were high strength steel (above F y = 450 MPa ) and concrete ( f ck = 31.5 MPa , 59 MPa), diameter–thickness ratio ( D / t = 25 , 40, 60, 80, 100) and eccentric distance ( e = 0 D , 0.167 D , 0.5 D ). The results from the experimental tests and fiber element analysis were compared with AISC (2005) [16] , Eurocode 4 (1994) [18] , and KBCS (2009) [17] to verify the suitability of the analysis in the codes. From the analysis results, it is considered that AISC [16] , and KBCS [17] show good agreement for the circular CFST column under eccentric loading and that Eurocode 4 [18] overestimates the load–moment relation of the circular CFST column under eccentric loading.

[1]  C. S. Cai,et al.  Experimental behavior of circular concrete-filled steel tube stub columns , 2007 .

[2]  Dennis Lam,et al.  Axial capacity of circular concrete-filled tube columns , 2004 .

[3]  Brian Uy,et al.  Strength of concrete filled steel box columns incorporating local buckling , 2000 .

[4]  Jerome F. Hajjar,et al.  Representation of Concrete-Filled Steel Tube Cross-Section Strength , 1996 .

[5]  Brian Uy,et al.  Theoretical study on the post-local buckling of steel plates in concrete-filled box columns , 2000 .

[6]  André T. Beck,et al.  Reliability-based evaluation of design code provisions for circular concrete-filled steel columns , 2009 .

[7]  Qing Quan Liang,et al.  Nonlinear analysis of circular concrete-filled steel tubular short columns under eccentric loading , 2009 .

[8]  Zhong Tao,et al.  Tests and mechanics model for concrete-filled SHS stub columns, columns and beam columns , 2001 .

[9]  Richard W. Furlong,et al.  Strength of Steel-Encased Concrete Beam Columns , 1967 .

[10]  Hsuan-Teh Hu,et al.  NONLINEAR ANALYSIS OF AXIALLY LOADED CONCRETE-FILLED TUBE COLUMNS WITH CONFINEMENT EFFECT , 2003 .

[11]  Brian Uy,et al.  Local and Postlocal Buckling of Fabricated Steel and Composite Cross Sections , 2001 .

[12]  L. P. Saenz.  Discussion of Equation for the Stress-strain Curve of Concrete by Desayi and Krishman , 1964 .

[13]  L. P. Sanez,et al.  DISCUSSION OF EQUATION FOR THE STRESS - STRAIN CURVE OF CONCRETE’ BY DESAYI AND KRISHNAN , 1964 .

[14]  Hiroyuki Nakahara,et al.  Behavior of centrally loaded concrete-filled steel-tube short columns , 2004 .

[15]  Mark A. Bradford,et al.  Slenderness limits for filled circular steel tubes , 2002 .

[16]  Frank J. Vecchio,et al.  Compression Field Modeling of Confined Concrete: Constitutive Models , 2006 .

[17]  Jinan Chung,et al.  Prediction of pre- and post-peak behavior of concrete-filled square steel tube columns under cyclic loads using fiber element method , 2007 .

[18]  Kamel Chaoui,et al.  An experimental behaviour of concrete-filled steel tubular columns , 2005 .

[19]  Atorod Azizinamini,et al.  Behavior and strength of circular concrete-filled tube columns , 2002 .

[20]  R. P. Johnson,et al.  Design of composite steel and concrete structures , 1993 .

[21]  K. F. Chung,et al.  Composite column design to Eurocode 4 : based on DD ENV 1994-1-1: 1994 Eurocode 4: design of composite steel and concrete structures: part 1.1: general rules and rules for buildings , 1994 .

[22]  Dennis Lam,et al.  Behaviour of normal and high strength concrete-filled compact steel tube circular stub columns , 2006 .

[23]  Kenji Sakino,et al.  EXPERIMENTAL STUDIES ON THE ULTIMATE MOMENT OF CONCRETE FILLED SQUARE STEEL TUBULAR BEAM-COLUMNS , 1979 .

[24]  Lin-Hai Han,et al.  Experimental behaviour of stiffened concrete-filled thin-walled hollow steel structural (HSS) stub columns , 2005 .

[25]  Kuang-Han Chu,et al.  STRESS-STRAIN RELATIONSHIP FOR PLAIN CONCRETE IN COMPRESSION , 1985 .

[26]  Russell Q. Bridge,et al.  DESIGN OF CIRCULAR THIN-WALLED CONCRETE FILLED STEEL TUBES , 2000 .

[27]  Robert Park,et al.  Strength of Concrete Filled Steel Tubular Columns , 1969 .