[1] L.-H. Han, G.-H. Yao, Influence of concrete compaction on the strength of concrete-filled steel RHS columns, Journal of Constructional Steel Research, 59(6) (2003) 751-767.
[2] T. Fujimoto, A. Mukai, I. Nishiyama, K. Sakino, Behavior of eccentrically loaded concrete-filled steel tubular columns, Journal of Structural Engineering, 130(2) (2004) 203-212.
[3] G. Zhao, M. Di Prisco, L. Vandewalle, Experimental investigation on uniaxial tensile creep behavior of cracked steel fiber reinforced concrete, Materials and Structures, 48(10) (2015) 3173-3185.
[4] G. Giakoumelis, D. Lam, Axial capacity of circular concrete-filled tube columns, Journal of Constructional Steel Research, 60(7) (2004) 1049-1068.
[5] S. Tokgoz, C. Dundar, Experimental study on steel tubular columns in-filled with plain and steel fiber reinforced concrete, Thin-Walled Structures, 48(6) (2010) 414-422.
[6] X. Chang, Y.-Y. Wei, Y.-C. Yun, Analysis of steel-reinforced concrete-filled-steel tubular (SRCFST) columns under cyclic loading, Construction Building Materials, 28(1) (2012) 88-95.
[7] M. Yu, X. Zha, J. Ye, Y. Li, A unified formulation for circle and polygon concrete-filled steel tube columns under axial compression, Engineering structures, 49 (2013) 1-10.
[8] N. Jamaluddin, D. Lam, X. Dai, J. Ye, An experimental study on elliptical concrete filled columns under axial compression, Journal of Constructional Steel Research, 87 (2013) 6-16.
[9] S. Tokgoz, Tests on plain and steel fiber concrete-filled stainless steel tubular columns, Journal of Constructional Steel Research, 114 (2015) 129-135.
[10] Y. Lu, N. Li, S. Li, H. Liang, Behavior of steel fiber reinforced concrete-filled steel tube columns under axial compression, Construction and Building Materials, 95 (2015) 74-85.
[11] Y.-L. Long, J. Wan, J. Cai, Theoretical study on local buckling of rectangular CFT columns under eccentric compression, Journal of Constructional Steel Research, 120 (2016) 70-80.
[12] F.-x. Ding, Z. Li, S. Cheng, Z.-w. Yu, Composite action of hexagonal concrete-filled steel tubular stub columns under axial loading, Thin-Walled Structures, 107 (2016) 502-513.
[13] F.-x. Ding, Z. Li, S. Cheng, Z.-w. Yu, Composite action of octagonal concrete-filled steel tubular stub columns under axial loading, Thin-Walled Structures, 107 (2016) 453-461.
[14] M. Elchalakani, A. Karrech, M. Hassanein, B. Yang, Plastic and yield slenderness limits for circular concrete filled tubes subjected to static pure bending, Thin-Walled Structures, 109 (2016) 50-64.
[15] S.-W. Liu, T.-M. Chan, S.-L. Chan, D.K.-L. So, Direct analysis of high-strength concrete-filled-tubular columns with circular & octagonal sections, Journal of Constructional Steel Research, 129 (2017) 301-314.
[16] M. Mahgub, A. Ashour, D. Lam, X. Dai, Tests of self-compacting concrete filled elliptical steel tube columns, Thin-Walled Structures, 110 (2017) 27-34.
[17] F.-x. Ding, D.-r. Lu, Y. Bai, Y.-z. Gong, Z.-w. Yu, M. Ni, W. Li, Behaviour of CFRP-confined concrete-filled circular steel tube stub columns under axial loading, Thin-Walled Structures, 125(1) (2018) 107-118.
[18] A.S.f.T. Materials, Standard test methods for tension testing of metallic materials, ASTM international, 2016.
[19] Instruction for Seismic Rehabilitation of Existing Buildings Office of Deputy for Technical Affairs Technical Criteria Codification & Earthquake Risk Reduction Affairs Bureau ,Islamic Republic of Iran Management and Planning Organization, Tehran 2007.
[20] K. Sakino, H. Nakahara, S. Morino, I. Nishiyama, Behavior of centrally loaded concrete-filled steel-tube short columns, Journal of Structural Engineering, 130(2) (2004) 180-188.
[21] D. Hernández-Figueirido, M.L. Romero, J. Bonet, J. Montalvá, Ultimate capacity of rectangular concrete-filled steel tubular columns under unequal load eccentricities, Journal of constructional steel research, 68(1) (2012) 107-117.
[22] J. Portolés, M.L. Romero, J. Bonet, F. Filippou, Experimental study of high strength concrete-filled circular tubular columns under eccentric loading, Journal of constructional steel research, 67(4) (2011) 623-633.
[23] The tenth chapter of the national building regulations: Design and Construction of Steel Structures, Tehran, 2013.