Abstract
In order to provide parameters for numerical analyses of the huge Three-Gorge concrete dam (2309 m long by 175 m height), complete tensile stress-deformation curves for large-size plain concrete specimens were measured and studied by performing uniaxial tensile tests on large-size unnotched specimens (250 mm × 250 mm × 1400 mm). The specimens were prepared with the three-graded-aggregate materials provided by the client of the Three-Gorge project. To prevent a failure occurring near the ends of the unnotched specimens, both the ends of each specimen (450 mm in length) were cast using a higher-strength concrete than the middle part (i.e., active part). Tensile tests were completed on a specially-designed tensile testing machine, which can be easily re-assembled to accommodate different-size specimens. To make the specimens fail stably, a cyclic loading scheme was adopted after the peak strength was reached. Four of five tests in this study were successful, and four complete tensile stress-deformation curves were obtained. It was found that the post-peak curve of the large-size specimens used in this study is more gradual than those for the small-size specimens reported in the literature.
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References
Carpinteri, A., Ingraffea, A.R., 1988. Fracture Mechanics of Concrete-Material Properties and Testing. Translated by Yang, Y.H. et al., Hunan University Press (in Chinese).
Chen, P., 1999. Experimental Study on the Complete Tensile Stress-Deformation Curve for Large-Size Concrete Specimens. MS Thesis, Hohai University, Nanjing, China, p. 10–11 (in Chinese).
Cornelissen, H.A.W., Hordijk, D.A., Reinhardt, H.W., 1985. Experiments and Theory for the Application of Fracture Mechanics to Normal and Lightweight Concrete. In: Fracture Toughness and Fracture Energy of Concrete. Elsevier Science Publishers B.V., the Netherlands, p.565–575.
Evans, R.H., Marathe, M.S., 1968. Microcracking and stressstrain curves for concrete in tension. Materials and Structures Research and Testing, 1:61–64.
Gopalaratnam, V.S., Shah, S.P., 1985. Softening response of plain concrete in direct tension. ACI Journal, 82:311–323.
Guo, Z.H., Zhang, X.Q., 1998. Experimental study on the complete tensile stress-deformation curves for concrete specimens. Journal of Building Structure, 4:45–53 (in Chinese).
Hordijk, D.A., Reinhardt, H.W., Cornelissen, H.A.W., 1987. Fracture Mechanics Parameters of Concrete from Uniaxial Tensile Tests as Influenced by Specimen Length. SEM/RILEM International Conference on Fracture of Concrete and Rock. Houston, Texas, p.138–149.
Li, Z., Kulkarni, S.M., Shah, S.P., 1993. New test method for obtaining softening response of unnotched concrete specimen under uniaxial tension. Experimental Mechanics, 33(3):181–188. [doi:10.1007/BF02322570]
van Mier, J.G.M., Shi, C., 2002. Stability issues in uniaxial tensile tests on brittle disordered materials. International Journal of Solids and Structures, 39(13–14):3359–3372. [doi:10.1016/S0020-7683(02)00159-2]
Yankelevsky, D.Z., Reinhardt, G.W., 1987. Response of the plain concrete to cyclic tension. ACI Materials Journal, 84:365–373.
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Chen, P., Liang, Zp., Huang, Sq. et al. Experimental study on complete stress-deformation curves of larger-size concrete specimens subjected to uniaxial tension. J. Zhejiang Univ. - Sci. A 7, 1296–1304 (2006). https://doi.org/10.1631/jzus.2006.A1296
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DOI: https://doi.org/10.1631/jzus.2006.A1296