PARAMETRIC ANALYSIS OF THE DYNAMIC BEHAVIOUR OF RC COLUMNS WITH THE CONFINEMENT EFFECT OF OVERLAPPING HOOPS SUBJECTED TO LATERAL RAPID LOADINGS
DOI:
https://doi.org/10.14311/CEJ.2018.04.0042Keywords:
RC columns, Dynamic behaviour, Lateral rapid loadings, Confinement effect of overlapping hoops, Strain rate effect, Finite element analysisAbstract
To further examine the effect of the strain rate on the behaviour of hoop-confined reinforced concrete (RC) columns, the dynamic behaviour of overlapping hoop-confined RC columns subjected to lateral rapid loadings is investigated by applying finite element analysis. Based on the verified finite element model, the effect of the following five parameters on the dynamic behaviour of RC columns were discussed considering both strain rate effect and confinement effect: the loading rate, axial load ratio, volume ratio of stirrups, shear span ratio and configuration of hoops. The following conclusions were made. The lateral-load-carrying capacity increases and the ductility decreases because of the rapid loadings, but the increase in volume ratio of the stirrups weakens the effect of the loading rate on the ductility. The axial load ratio and volumetric ratio of the stirrups affect the dynamic increasing factor (DIF) of the lateral-load-carrying capacity, but the effect of the shear span ratio on the DIF can be neglected. The increase in flexural-load-carrying capacity due to the increase in volume ratio of the stirrups under static loadings is higher than that under rapid loadings. The difference in effect of the two configurations of overlapping hoops on the dynamic behaviour of RC columns is notably small.
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Zeng X., 2017. Finite element analysis of behavior of reinforded concrete columns confined by overlapping hoops subjected to concentric rapid loading. Civil Engineering Journal, 26(4): 530-543.
Xu B., Zeng X., 2014. Experimental study and finite element analysis on the dynamic behavior of slender RC columns under concentric compressive rapid loadings. Engineering Mechanics, 31(4): 210-217. (in Chinese)
Zeng X., Xu B., 2014. Numerical simulation on the dynamic behavior of short RC columns subjected to concentric rapid loading considering confinement effect of stirrups. Engineering Mechanics, 31: 190-197. (in Chinese)
Adhikary S.D., Li B.,Fujikake K., 2013. Strength and behavior in shear of reinforced concrete deep beams under dynamic loading conditions. Nuclear Engineering and Design, 259: 14-23.
Wang D., Li H.N., Li G., 2013. Experimental tests on reinforced concrete columns under multi-dimensional dynamic loadings.Construction and Building Materials, 47: 1167-1181.
Ghannoum W., Saouma V., Haussmann G., et al., 2012. Experimental investigations of loading rate effects in reinforced Concrete Columns. Journal of Structural Engineering, 138(8):1032-1041.
Asprone D., Frascadore R., Ludovico M.D., et al., 2012. Influence of strain rate on the seismic response of RC structures. Engineering Structures, 35: 29-36.
Song Z., Lu Y., 201. Numerical simulation of concrete confined by transverse reinforcement. Computers & Concrete, 8(1): 757-760.
Adhikary S.D., Li B., Fujikake K., 2012. Dynamic behavior of reinforced concrete beams under varying rates of concentrated loading. International Journal of Impact Engineering, 47: 24-38.
Mizuno J., Matsuo I., Suzuki A., et al., 2001. Effects of loading rate on reinforced concrete shear walls- Part 3: High speed loading tests of reinforced concrete shear walls and FE simulation analyses. In: International Conference on Earthquake Resistant Engineering Structures, 63-72.
Ogawa T., Nakanishi M., Adachi H., 2006. Study on the mechanical properties of reinforced concrete exterior beam-column joints under dynamic loading. Journal of Structural & Construction Engineering (Transactions of AIJ), 71(600): 155-162.
Takeda J., Tachikawa H., Fujimoto K., 1977. Effects of straining rate on deformation and fracture of reinforced concrete members. In: Proceeding of Sixth World Conference on Earthquake Engineering. New Delhi, 32-56.
Mutsuyoshi H., Machida A., 1984. Properties and failure of reinforced concrete members subjected to dynamic loading. Transactions of the Japan Concrete Institute, 6: 521-528.
Kulkarni S.M., Shah S.P., 1998. Response of reinforced concrete beams at high strain rates. ACI Structural Journal, 95(6): 705-715.
Iwai S., Minami K., Wakabayashi M., 1988. Stability of slender reinforced concrete members subjected to static and dynamic loads. In: Proceedings of Ninth World Conference on Earthquake Engineering, Vol. Ⅷ: 901-906.
Reinschmidt K.F., Hansen R.J., Yang C.Y., 1964. Dynamic tests of reinforced concrete columns. ACI Journal Proceedings, 61(3): 317-334.
Scott B.D., Park R., Priestley M.J.N., 1982. Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates. ACI Journal Proceedings, 79(1): 13-27.
Li B., Park R., Tanaka H., 2000. Constitutive behavior of high-strength concrete under dynamic loads. ACI Structural Journal, 97(4): 619-629.
Soroushian P., Obaseki K., 1986. Strain rate-dependent interaction diagrams for reinforced concrete sections. Journal of the American Concrete Institute, 83(1): 108-116.
Fujikake K., Mori K., Uebayashi K., et al., 2000. Dynamic properties of concrete materials with high rates of triaxial compressive loads. In: International Conference on Structures under Shock & Impact Ⅵ. Cambridge, 511-522.
Yan D.M., Lin G., Chen G., 2009. Dynamic properties of plain concrete in triaxial stress state. ACI Material Journal, 106(1): 89-94.
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