Uniaxial Stress-Strain Model for Concrete Confined by Rectangular Steel Tubes

Abstract:

This paper presents a new model for uniaxial stress-strain relationship of concrete confined by rectangular steel tubes. The difference between concrete confinement effect provided by broad faces and that provided by narrow faces of steel tube is considered in the proposed model. The failure criteria for concrete subjected to triaxial compression is applied to estimate the ultimate strength of concrete core. The parameters of the model are determined based on the test results and the calculation of complete load-stress relationship curves is conducted for axially loaded rectangular CFT specimens using the model proposed in the paper. The concrete core strength and stress-strain behavior of rectangular CFT columns is found to exhibit good agreement with test results.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 1005-1011
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.1005
• Online since: December 2010
• Authors: Yue Ling Long, Jian Cai
• Keywords: Concrete, Confinement Effect, Rectangular Steel Tube, Stress-Strain Model

References

[1] Furlong RW: J Struct. Div., ASCE, Vol. 93(5) (1967), pp.113-124.

[2] Knowles RB and Park R: J Struct. Div., ASCE, Vol. 95(12) (1969), pp.2565-2587.

[3] Schneider S. P: J Struct. Eng., ASCE, Vol. 124(10) (1998), pp.1125-1138.

[4] Uy B: Journal of Constructional Steel Research, Vol. 57 (2001), pp.114-134.

[5] Han L-H: Journal of Constructional Steel Research, Vol. 58 (2002), pp.353-372.

[6] Liu Dalin, Gho W-M and Yuan Jie: Journal of Constructional Steel Research, Vol. 59 (2003), pp.1499-1515.

[7] Sakino K, Nakahara H, Morino S and Nishiyama I: J Struct. Eng., ASCE, Vol. 130(2) (2004), pp.180-188.

[8] Liu Dalin and Gho W-M: Thin-Walled Strut., Vol. 43(8) (2005), pp.1131-1142.

[9] Lue DM, Liu J-L and Yen T: Journal of Constructional Steel Research, Vol. 63 (2007), pp.37-44.

[10] Oliveira WLA, Nardin SD and Debs ALH C: Journal of Constructional Steel Research, Vol. 65 (2009), pp.2103-2110.

[11] Yang H, Lam D and Gardner L: Engineering Structures, Vol. 30 (2008), pp.3771-3781.

[12] Dai X and Lam D: Journal of Constructional Steel Research, Vol. 66 (2010), pp.931-942.

[13] Tang J, Hino S, Kuroda I and Ohta T: Steel Constr Eng, JSSC, Vol. 3 (1996), pp.35-46.

[14] Susantha K.A. S, Ge H and Usami T: Engineering Structures, Vol. 23 (2001), pp.1331-1347.

[15] Sakino K and Sun Y: Journal of structural and construction engineering, AIJ, Vol. 461 (1994), pp.95-104.

[16] Liang QQ, Uy B and Liew J. YR: Journal of Constructional Steel Research, Vol. 62 (2006), pp.581-591.

[17] Lu F. W, Li S. P and Sun G: Journal of Constructional Steel Research, Vol. 63 (2007), pp.941-948.

[18] Han LH. Concrete-filled Steel Tube Columns. (Science Publishing Company, China, 2004).

[19] Liang QQ: Journal of Constructional Steel Research, Vol. 64 (2008), pp.295-304.

[20] Chung K, Chung J and Choi S: Thin-Walled Strut., Vol. 45 (2007), pp.747-758.

[21] Chung K. : Thin-Walled Strut., Vol. 45 (2010), pp.169-178.

[22] Mander JB, Priestley MJN and Park R: J Struct. Eng., ASCE, Vol. 114(8) (1988), pp.1807-1826.

[23] Popovics S: Cement and Concrete Research, Vol. 3(5) (1973), pp.583-599.

[24] GB 50010-2002. Code for design of concrete structures. (China Architecture and Building Press, China, 2002)[in Chinese].

[25] Huang Y, Long Y-L and Cai J: Steel and Composite Strutures, Vol. 8(2) (2008), pp.115-128.