2Susantha K, Ge H, Usami T. Uniaxial stress-strain relationship of concrete by various shaped steel robes [ J ]. Engineering Structures, 2001,23 (10) : 1331-1347.
3Hu H T, Huang C S, Wu M H. Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect[ J]. Journal of Structural Engineering,2003,129 (10) : 1322-1329.
4Popovics S. A numerical appoareh to the complete stress-strain curves for concrete [ J]. Cement Concrete Res, 1973,3 (5) :583- 599.
5Maner J B, Priestly J N, Park R. Theoretical stress-strain medel for confined concrete [ J ]. Journal of Structural Engineering, 1988, 114(8) :1804-1826.
6Tang J, Hino S, Kuroda I, et al. Modeling of stress-strain relationships for steel and concrete in concrete filled circular steel tubular columns[J]. Steel Constr Eng,JSSC 1996,3 ( 11 ) :35-46.
7Sugupta D P G, Mendis P A. Design of high-strength-concrete-filled tube column [ A ]. Proceedings of the Fifth East - Asia - Pacific Concrete on Structural Engineering and Construction;Grifflth University, Australia, 1995:427-432.
8Hu H T, Schnobrich W C. Constitutive modeling of concrete by using nonassoeiated plasticity [ J ]. Journal of Materials in Civil Engineering, 1989, 1(4):199-216.
