Vol. 18, No. 4, pp. 736-744 (2022)
A MODEL FOR PREDICTING MOMENT-CURVATURE BEHAVIOR OF
SELF-STRESSING SSACFST COLUMNS UNDER LOW CYCLIC LOADING
Feng Yu 1, Yue Cao 1, Yuan Fang 1, 2, *, Yuan-Di Qian 1, 3, Chi Yao 1 and Yin Qin 1
1 Department of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan, China
2 Key Laboratory of Metallurgical Emission Reduction & Resources Recycling (Anhui University of Technology),
Ministry of Education
3 China MCC 17 Group Co., Ltd
* (Corresponding author: E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 22 June 2021; Revised: 18 March 2022; Accepted: 27 March 2022
DOI:10.18057/IJASC.2022.18.4.1
 View Article
|
Export Citation: Plain Text | RIS | Endnote |
ABSTRACT
This paper reports the experimental investigation and theoretical model of self-stressing steel slag aggregate concrete-filled steel tubular (SSACFST) columns under low cyclic loading. Fourteen specimens including ten self-stressing SSACFST columns and four ordinary SSACFST columns (reference columns) are tested, and the effects of four experimental variables, such as axial compression ratio (n), diameter-thickness ratio (D/ts), shear-span ratio ( ), and expansion rate (Pct ) of steel slag aggregate concrete (SSAC) on failure mode, moment-curvature hysteretic curves and skeleton curves are examined. Experimental results demonstrate that the failure mode of columns with high shear-span ratio is bending failure while the bending-shear failure dominates the damage of columns with low shear-span ratio. With the enhancement of axial compression ratio or expansion rate of SSAC, the peak moment of specimens increases. The increase of shear-span ratio or diameter-thickness ratio decreases the peak moment of specimens. The peak curvature of specimens decreases as axial compression ratio increases, while it increases as shear-span ratio increases. The impacts of diameter-thickness ratio and expansion rate of SSAC on peak curvature of specimens are marginal. A simplified calculation method of moment-curvature skeleton curves is suggested and the hysteresis rules of self-stressing SSACFST columns are also proposed by analyzing the features of hysteretic curves. Ultimately, a model for evaluating moment-curvature behavior of self-stressing SSACFST columns under low cyclic loading is established and validated the experimental results with good agreement.
KEYWORDS
Concrete filled steel tube, Steel slag aggregate concrete, Self-stressing, Low cyclic loading, Moment-curvature
REFERENCES
[1] Guo, J. L., Bao, Y. P. and Wang, M., “Steel slag in China: Treatment, recycling, and management”, Waste Manage, 2018, Vol. 78, No. 8, pp. 318-330.
[2] Guo, Y., Xie, J., and Zhao, J., “Utilization of unprocessed steel slag as fine aggregate in normal- and high-strength concrete”, Constr Build Mater, 2019, Vol. 204, No. 20, pp. 41-49.
[3] Palankar, N., Ravi Shankar, A.U., and Mithun, B.M., “Durability studies on eco-friendly concrete mixes incorporating steel slag as coarse aggregates”, Clean Prod, 2016, Vol. 129, No. 15, pp. 437-448.
[4] Saxena, S., Tembhurkar, A.R., “Impact of use of steel slag as coarse aggregate and wastewater on fresh and hardened properties of concrete”, Constr Build Mater, 2018, Vol. 165, pp. 126-137.
[5] Lai, M. H., Zou, J., Yao, B., Ho, J.C.M., Zhuang, X., and Wang, Q., “Improving me-chanical behavior and microstructure of concrete by using BOF steel slag aggregate”, Constr Build Mater, 2021. Vol. 277, 122269.
[6] Netinger, I., Bjegović, D. and Vrhovac, G., “Utilization of steel slag as an aggregate in concrete”, Fatigue Fract Eng M, 2011, Vol. 44, No. 9, pp. 1565-1575.
[7] Anastasiou, E., Filikas, K.G. and Stefanidou, M., “Utilization of fine recycled ag-gregates in concrete with fly ash and steel slag”, Constr Build Mater, Vol. 50, No. 1, pp. 154-161.
[8] Gencel, O., Karadag, O., and Oren, O. H., “Steel slag and its applications in cement and concrete technology: A review”, Constr Build Mater, 2021, Vol. 283, 122783.
[9] Qasrawi, H., Shalabi, F. and Asi, I., “Use of low CaO unprocessed steel slag in con-crete as fine aggregate”, Constr Build Mater, 2009, Vol. 23, No. 2, pp. 1118-1125.
[10] Maslehuddin, M., Sharif, A.M., Shameem, M., Ibrahim, M. and Barry, M. S., “Com-parison of properties of steel slag and crushed limestone aggregate concretes”, Con-str Build Mater, 2003, Vol. 17, No. 2, pp. 105-112.
[11] Wang, Q., Yan, P., “Hydration properties of basic oxygen furnace steel slag”, Constr. Build. Mater, 2010, Vol. 24, No. 7, pp. 1134-1140.
[12] Wang, X., Ni, W., Li, J.J. and Zhang, S. Q., Michael, H. and Rodrigo. P., “Carbona-tion of steel slag and gypsum for building materials and associated reaction mecha-nisms”, Cement Concrete Res, 2019, Vol. 125, No. 11, 105893.
[13] Huo, B. B., Li, B. L., Huang, S. Y., Chen, C., Zhang, Y. M. and Banthia, N., “Hydra-tion and soundness properties of phosphoric acid modified steel slag powder”, Constr Build Mater, 2020, Vol. 254, No. 11, 119319.
[14] Wang, Q. Wang,, D.Q. and Zhuang, S.Y., “The soundness of steel slag with different free CaO and MgO contents”, Constr Build Mater, 2017, Vol. 151, pp. 138-146.
[15] Ukanwa, K.U., Clifton, C.G., Lim, J. B. P., Hicks, S. and Sharma, U. K., “Numerical analysis of plain and steel fiber reinforced concrete filled steel tubular slender column”, Adv Steel Constr, 2018, Vol. 14, No. 2, pp. 308-323.
[16] Wang, Q. L., Qu S. E., Shao, Y. B. and Feng, L. M., “Static behavior of axially com-pressed circular concrete filled cfrp-steel tubular (c-cf-cfrp-st) columns with mod-erate slenderness ratio”, Adv Steel Constr, 2016, Vol. 12, No. 3, pp. 263-295.
[17] Ji, B., Fu, Z., Qu, T. and Wang, M., “Stability behavior of lightweight aggregate concrete filled steel tubular columns under axial compression”. Adv Steel Constr, 2013, Vol. 9, No. 1, pp. 1-13.
[18] Xu, L.H., Zhou, P. H., Huang, L., Ye, J. Q. and Yu, M., “Performance of the high-strength self-stressing and self-compacting concrete-filled steel tube columns subjected to the uniaxial compression”, Int J Civ Eng, 2018, Vol. 16, No. 9, pp. 1069-1083.
[19] Zhou, S. X., Ma, Y. and Sun, D. S., “The influence of bearing capacity of self-stressed cfst members for different strength grades and self-stressed magnitudes of concrete”, Appl. Mech. Mater, 2012, No. 5, pp. 1546-1551.
[20] Li, N., Lu, Y. Y., Li, S. and Gao, D. Y., “Axial compressive behaviour of steel fibre reinforced self-stressing and self-compacting concrete-filled steel tube columns”, Eng Struct, 2020, Vol. 222, No. 11, 111108.
[21] Chang, X., Huang, C. K. and Chen, Y. J., “Mechanical performance of eccentrically loaded pre-stressing concrete filled circular steel tube columns by means of expan-sive cement”, Eng Struct, 2009, Vol. 31, No. 11, pp. 2588-2597.
[22] Yu, F., Yao, C., Hu, Y., Fang, Y., Niu, K., and Xiang, G. S., “Axial compressive behavior of self-stressing steel slag aggregate concrete filled steel tubular columns with bond-slip damage”, Adv Steel Constr, 2020, Vol. 16, No.1, pp. 13–19.
[23] Shen, Q. H., Gao, H. B., Wang, J. F., and Wang, C. G., “Experimental study on per-formance of steel slag concrete filled elliptical steel tubular stub columns under axial load”, J. Build Struct, 2021, Vol. 42, No.2, pp. 197-203 (in Chinese).
[24] Yu, F., Fang, Y., Zhang, Y. and Xu. L., “Mechanical behavior of self-stressing steel slag aggregate concrete filled steel tubular stub columns”, Struct. Concr, 2020, Vol. 4, No. 20. pp. 1597-1611.
[25] Fang, Y., Yu, F., Zhang, Y. Xu, L. and Wang, X. L., “Mechanical behavior and bear-ing capacity calculation of self-stressing steel slag aggregate reinforced concrete filled circular steel tube columns”, Acta Materiae compositae sinica, 2020, Vol. 37, No. 5, pp. 1211-1220 (in Chinese).
[26] Yu, F., Cao, Y., and Fang, Y.,“Mechanical behavior of self-stressing steel slag ag-gregate concrete filled steel tubular short columns with different loading modes”, Struct, 2020, Vol. 26, pp. 947-957.
[27] Feng, P., Li, Z. Y., Zhang, S. B., and Yang, J. Q.,“Steel slag aggregate concrete filled-in FRP tubes: Volume expansion effect and axial compressive behaviour”, Constr Build Mater, 2022, Vol. 318, 125961.
[28] GB/T50082-2009, Standard for test methods of long-term performance and dura-bility of ordinary concrete, National Standards of People’s Republic of China, Bei-jing, China, 2009.
[29] GB/T228.1-2010, Metallic materials-Tensile testing-Part 1: Method of test at room temperature, National Standards of People’s Republic of China, Beijing, China, 2010.
[30] GB/T 50081-2019, Standard for test method of mechanical properties on ordinary the concrete strength of the concrete, National Standards of People’s Republic of China, Beijing, China, 2019.
[31] Han, L.H., Concrete Filled Steel Tube Structure-Theory and Practice, Science Press, Bejing, China, 2016.
[32] Yao, C., Experimental study and theoretical analysis on seismic behavior of self-stressing steel slag aggregate concrete filled steel tubular columns, Master The-sis, Anhui University of Technology, 2020.
[33] Euro code 4, Design of Composite Steel and Concrete Structures, European Com-mittee for Standardization, European, 2004.
[34] Zhong, S. T.,“Theoretical study on limit state of concrete filled steel tubular mem-bers under axial compression”, Journal of Harbin Institute of Architectural Engi-neering, 1981, Vol. 1, No. 31, pp. 1-9 (in Chinese).