DOI QR코드

DOI QR Code

Application of a 3-D crack analysis model to RC cantilever decks of excessive cracking

  • Shi, Zihai (Research and Development Center, Nippon Koei Co., Ltd.) ;
  • Nakano, Masaaki (Research and Development Center, Nippon Koei Co., Ltd.)
  • 발행 : 2001.10.25

초록

The excessive cracking of RC cantilever decks, which often requires special attention for structural engineers, is studied using a three-dimensional crack analysis model. The model is based on a fracture energy approach for analyzing cracks in concrete, and the numerical analysis is carried out using a modified load control method. The problem of excessive cracking is then studied with four different span-ratios. Based on the numerical results, the crack behavior with respect to the patterns of crack propagation, dissipation of the fracture energy, and effects on the structural integrity are discussed. The mechanisms which cause the excessive cracking are also explained.

키워드

참고문헌

  1. Dahlblom, O., and Ottosen, N.S. (1990), "Smeared crack analysis using generalized fictitious crack model", J. Eng. Mech., ASCE, 116(1), 55-76. https://doi.org/10.1061/(ASCE)0733-9399(1990)116:1(55)
  2. Haibara, T., Nakatsui, K., Ito, M., and Nakatsubo, Y. (1997), "Evaluation of load carrying capacity of aging RC sewers", Proc. the 52th Annual Conference of JSCE.
  3. Jones, R.M. (1975), Mechanics of Composite Materials, Kogakusha Ltd., McGraw-Hill.
  4. Osako, K., Takahashi, H., Kitahashi, N., Akimoto, E., Nakatsui, K., and Nakano, M. (1999), "Renovation technology and evaluation of load carrying capacity for sewage pipe renewal method", Proc. Int. Conf. on Infrastructure Regeneration and Rehabilitation, Sheffield, Britain.
  5. Saitoh, H., Kitayama, Y., and Yamashiro, H. (1998), "A new technique for sewer rehabilitation applicable to noncircular cross-sections", Proc. the World Tunnel Congress '98 on Tunnels and Metropolises, Sao Paulo, Brazil.
  6. Shi, Z., and Nakano, M. (1998), "Numerical approach based on the energy criterion in fracture analysis of concrete structures", Proc. FRAMCOS-3, AEDIFICATIO, Germany.
  7. Shi, Z., and Nakano, M. (1999), "Three-dimensional finite element analysis on crack behaviors of RC cantilever decks", Construction and Building Materials, 13(1-2), 33-47. https://doi.org/10.1016/S0950-0618(99)00006-9
  8. Yokoyama, H., Osako, K., Koiwa, S., Kitahashi, N., and Akimoto, E. (1998), "Development of self-profiling SPR technology", 16th Int. NO-DIG '98 Poster Presentation, CHSTT, Switzerland.

피인용 문헌

  1. Modified Mohr‐Coulomb – Rankine material model for concrete vol.28, pp.7, 2011, https://doi.org/10.1108/02644401111165112