[1] Probst, A.D., Kang, T.H.K.., Ramseyer Ch., Kim, U., 2010, Composite Flexural Behavior of Full-Scale Concrete-Filled Tubes without Axial Loads, Journal of Structural Engineering, Vol. 140, pp. 1-12.
[2] Deng, Y., Tuan, C.Y., Zhou, Q., Xiao, Y., 2011, Flexural strength analysis of non-post-tensioned and post-tensioned concrete-filled circular steel tubes, Journal of Constructional Steel Research, Vol. 67, pp. 192–202.
[3] Shawkat, W., Fahmy, W., Fam, A., 2008, Cracking patterns and strength of CFT beams under different moment gradients, Composite Structures Vol. 84, pp. 159-166.
[4] Mei, H., Kiiousis, P.D., Ehsani, M.R., Saadatmanesh, H., 2001, Confinement effects on high strength concrete, ACI structure journal, Vol. 98, pp. 548-553
[5] Christopher, Y., Tuan, M., 2008, Flexural Behavior of Nonposttensioned and Posttendsioned Concrete-filled Circular Steel Tubes, Journal of Structural Engineering, 1057-60.
[6] Elchalakani, M., Zhao, X.L., Grzebieta, R.H., 2001, Concrete-filled circular steel tubes subjected to pure bending, Journal of Constructional Steel Research 57, 1141-68.
[7] Han, L.H., Lu, H., Yao, G.H., Liao, F.Y., 2006, Further study on the flexural behavior of concrete-filled steel tubes, Journal of Constructional Steel Research 62, pp. 554-565.
[8] Han, L.H., 2004, Flexural Behavior of Concrete-Filled Steel Tubes, Journal of
Constructional Steel Research 60, 313-37.
[9]. Nematzadeh, M., Naghipour, M., 2012, Compressing fresh concrete technique and the effect of excess water content on physical-mechanical properties of compressed concrete, Materials and Design, 37, pp. 256-267.
[10] Nematzadeh, M., Naghipour, M., 2012, Compressive strength and modulus of elasticity of freshly compressed concrete, Construction and Building Materials 34, pp. 476-485.
[11] Naghipour, M., Nematzadeh, M., Jalali, J., Salari, A., Nemati, S.T., 2015, Hardened density of freshly compressed concrete and its effect on mechanical properties, European journal of environment and civil engineering, Vol. 19, pp. 733-755.
[12] Naghipour, M., Nemati, M., Jalali, J., Nematzadeh, M., Assessment of parameters affecting the flexural behavior of CFST beams, under subscription.
[13] American Institute of Steel Construction, Steel construction manual, 2005, 13th Ed., Chicago.
[14] Standard practice for selecting proportions for normal, heavyweight, and mass concrete, 2000, ACI manual of concrete practice, part 1, Michigan American concrete institute, P. 38.
[15] Standard Test Methods and Definitions for Mechanical Testing of Steel Products. 2010, ASTM International, West Conshohocken.