Structural Engineering and Mechanics

  • 제11권1호
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  • Pages.17-34
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  • 2001
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A variable layering system for nonlinear analysis of reinforced concrete plane frames

  • Shuraim, Ahmed B. (Civil Engineering Department, College of Engineering, King Saud University)
  • 발행 : 2001.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

An improved method has been developed for the computation of the section forces and stiffness in nonlinear finite element analysis of RC plane frames. The need for a new approach arises because the conventional technique may have a questionable level of efficiency if a large number of layers is specified and a questionable level of accuracy if a smaller number is used. The proposed technique is based on automatically dividing the section into zones of similar state of stress and tangent modulus and then numerically integrating within each zone to evaluate the sectional stiffness parameters and forces. In the new system, the size, number and location of the layers vary with the state of the strains in the cross section. The proposed method shows a significant improvement in time requirement and accuracy in comparison with the conventional layered approach. The computer program based on the new technique has been used successfully to predict the experimental load-deflection response of a RC frame and good agreement with test and other numerical results have been obtained.

키워드

참고문헌

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피인용 문헌

  1. A reinforced concrete frame element with shear effect vol.36, pp.1, 2001, https://doi.org/10.12989/sem.2010.36.1.057