Instability Considerations in Limit Design of Concrete Frames

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Title: Instability Considerations in Limit Design of Concrete Frames

Author(s): Emilio Rosenblueth and Roger Diaz de Cossio

Publication: Special Publication

Volume: 12

Issue:

Appears on pages(s): 439-463

Keywords:

Date: 1/1/1965

Abstract:
With discussion by Peter R. Barnard, HerbertlA. Sawyer,,M.Z. Cohn, and Emilio Rosenblueth and Roger Diaz de Cossio. Failure due to crushing is a case of instability. The traditional nonlinear moment-curvature approach does not hold for systems exhibiting descending (unstable) portions in their force-deformation characteristics. A method based on a moment-rotation approach and an assumed contaminated zone is presented, which takes into account descending branches.