Publicado 2019-04-08
Cómo citar
Resumen
El objetivo de este trabajo es simular el agrietamiento en estructuras de concreto mediante dos enfoques: enfoque de grieta distribuida y enfoque de grieta discreta. Se analizaron dos casos de estudio: una viga con refuerzo ordinario y un extremo recortado de viga modelados mediante elementos finitos tridimensionales. Primeramente, se utilizó el enfoque de grieta distribuida para localizar la zona de agrietamiento en ambos casos de estudio. Posteriormente, para simular el ancho de la grieta se utilizó el enfoque de grieta discreta aplicando un modelo de zona cohesiva haciendo uso de una función que representa la abertura de la grieta. Los resultados obtenidos se validaron con resultados experimentales. Esta investigación proporciona la eficiencia y la aplicación de los dos enfoques para estimar la aparición y el ancho de grieta para estructuras de concreto reforzado.
Referencias
- ANSYS (2006). “Documentation for ANSYSâ€. ANSYS Workbench Release v. 11.0. ANSYS Inc. USA
- Bažant, Z. P., & Lin, F. (1988). Nonlocal smeared cracking model for concrete fracture. Journal of Engineering Mechanics. ASCE, 114(11), 2493-2510.
- Bažant, Z. P., & Oh, B. H. (1983). Crack band theory for fracture of concrete. Materials and Structures. RILEM, 155-177.
- Barbhuiya, S., & Choudhury, A. M. (2015). A study on the size effect of RC beam-column connections under cyclic loading. Engineering Structures, 95, 1-7. doi: http://dx.doi.org/10.1016/j.engstruct.2015.03.052
- Cornelissen, H., Hordijk, D., & Reinhardt, H. W. (1986). Experimental determination of crack softening characteristics of normal weight and lightweight concrete. HERON, 31(2), 45-56.
- Corr, D., Accardi, M., Graham-Brady, L., & Shah, S. (2007). Digital image correlation analysis of interfacial debonding propierties and fracture behavior in concrete. Engineering Fracture Mechanics, 74, 109-121. doi: 10.1016/j.engfracmech.2006.01.035
- Eurocode 2 (2007). Calcul des Structures en béton, NF-EN-1992.
- Gálvez, J. C., & Cendón, D. A. (2002). Simulación de la fractura del hormigón en modo mixto. Revista Internacional de Métodos Numéricos para cálculo y Diseño en IngenierÃa, 18(1), 31-58.
- Gopalaratnam, S., & Shah, S. (1985). Softening response of plain concrete in direct tension. Structural Journal, ACI, 82, 310-323.
- Hild, F., Roux, S. Bernard, D., Hauss, G., & Rebai, M. (2013). On the use of 3D images and 3D displacement measurements for the analysis of damage mechanics in concrete-like materials, in: Conference proceeding, plenary lecture, FraMCoS-8.
- Hillerborg, A., Modéer, P. E., & Petersson, P. E. (1976). Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements. Cement and Concrete Res. 6(6), 773-782.
- Ichinose, T., Kanayama, Y., Inoue, Y., & Bolander Jr. J. E. (2004). Size effect tests on bond strength of deformed bars. Construction and Building Materials, 18(7), 549-58. doi: http://dx.doi.org/10.1016/j.conbuildmat.2004.03.014
- Jin, L., Li, D., & Su, X. (2016). Mechanical behavior and size effect of moderate high-strength RC columns under monotonic and cyclic axial compression. Engineering Structures, 124, 269-85. doi: http://dx.doi.org/10.1016/j.engstruct.2016.06.030
- Kobayashi, A. S., Hawkins, M. N., Barker, D. B., & Liaw B. M. (1985). Fracture process zone of concrete, in: S.P. Shah (Ed.) Application of Fracture Mechanics to Cementitious Composites, Martinus Nijhoff Publ., Dordrecht, 25-50.
- Moreno-MartÃnez, J. Y., & Meli, R. (2014). Experimental study on the structural behavior of concrete dapped-end beam. Engineering Structures, 75, 152-163. doi: 10.1016/j.engstruct.2014.05.051
- Mosalam, K.M., & Paulino, G. H. (1997). Evolutionary characteristic length method for smeared cracking finite element models. Finite Element in Analysis and Design, 27, 99-108.
- Nilson, A. H. (1982). State-of-the-art report-finite element analysis of reinforcement concrete. ASCE 114 (11), 2493-2510.
- Padmarajaiah, S. K., & Ramaswamy, A. (2002). A finite element assessment of flexural strength of prestressed concrete beams with fiber reinforcement. Cement and Concrete Composites, 24, 229-241.
- Planas, J., & Elice, M. (1986). Towards a measure of GF: An analysis of experimental results. Fracture Toughness and Fracture Energy of Concrete, F.H. Wittmann (Ed.), Elsevier, 381-390.
- Polak, M. A. & Vecchio, F. (1993). Nonlinear analysis of reinforced concrete shell, Journal of Structural Engineering, 119(2), pp. 3439-3462.
- Prestressed Concrete Institute (1999). “PCI Design Handbookâ€. Sixfth Edition, Chicago, Illinois, pp. 4-79~4-83.
- Rashid, Y.R, (1968). Analysis of prestressed concrete pressure vessels, Nuclear Engineering and Design, 29 (4), 334-344.
- Reinhardt, H. W. (1984). Fracture mechanics of an elastic softening material like concrete, Heron, 29(2).
- Shah, S. & Choi, S. (1998). Nondestructive techniques for studying fracture processes in concrete. International Journal of Fracture, 98, 351-359.
- Syroka-Korol, E., Tejchman, J. & Mróz, Z. (2015). Experimental investigation of size effects of fluctuating local tensile strength on coupled energetic-statistical size effect in concrete beams. Engineering Structures, 103, 239-59. http://dx.doi.org/10.1016/j.engstruct.2015.09.011
- Vandewalle, L. (2000). Cracking behavior of concrete beams reinforced with a combination of ordinary reinforcement and steel fibers, 33, 164-170.
- William, K. J., & Warnke E. D. (1975). Constitutive model for the Triaxial Behavior of Concrete. Proceedings, International Association for Bridge and Structural Engineering, 19, 174.
- Yerlici, V. A., & Ozturan T. (2000). Factors affecting anchorage bond strength in high-performance concrete. ACI Structural Journal, 97(3), 499-507. URL: http://worldcat.org/oclc/13846957
- Zienkiewicz, O. C., & Zhu J. Z. (1992). The superconvergent patch recovery and a posteriori error estimates. Part 1: the recovery technique, International Journal for Numerical Methods in Engineering, 33, 1331-1364.