Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Computer aided reinforcement design of RC structures

  • An, Xuehui (Department of Hydraulic Engineering, Tsinghua University) ;
  • Maekawa, Koichi (Department of Civil Engineering, The University of Tokyo)
  • Received : 2003.05.06
  • Accepted : 2003.07.18
  • Published : 2004.02.25
⟨ Previous Next ⟩

Abstract

In this study, a design process for reinforced concrete structures using the nonlinear FEM analysis is developed. Instead of using the nonlinear analysis to evaluate the required performance after design process, the nonlinear analysis is applied before designing the reinforcement arrangement inside the RC structures. An automatic reinforcement generator for computer aided reinforcement agreement is developed for this purpose. Based on a nonlinear FEM program for analyzing the reinforced concrete structure, a smart fictitious material model of steel, is proposed which can self-adjust the reinforcement to the required amount at the cracking location according to the load increment. Using this tool, the reinforcement ratio required at design load level can be decided automatically. In this paper, an example of RC beam with opening is used to verify the proposed process. Finally, a trial design process for a real size underground RC LNG tank is introduced.

Keywords

References

  1. An, X., Maekawa, K. and Okamura, H. (1997) "Numerical simulation of size effect in shear strength of RC beams", J. of Materials, Concrete Structures and Pavements, JSCE, 35, 297-316.
  2. Hoogenboom, P.C.J. (1998) "Discrete elements and nonlinearity in design of structural concrete walls", Dissertation, Delft University of Technology,
  3. Maekawa, K. and An, X. (2000) "Shear failure and ductility of RC columns after yielding of main reinforcement", Engineering Fracture Mechanics, 65, 335-368. https://doi.org/10.1016/S0013-7944(99)00119-8
  4. Maekawa, K, Pimanmas, A. and Okamura, H. (2003), Nonlinear Mecganics of Reinforced Concrete, Spon Press, NY.

Cited by

  1. Performance design of reinforced concrete slabs using commercial finite element software vol.6, pp.4, 2005, https://doi.org/10.1680/stco.2005.6.4.141
  2. Computer Aided Design of RC Structures vol.7, pp.2, 2013, https://doi.org/10.1007/s40069-012-0027-7