Evaluation of Plastic Rotation Demands for Earthquake Design of Reinforced Concrete B
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Evaluation of Plastic Rotation Demands for Earthquake Design of Reinforced Concrete B
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Evaluation of Plastic Rotation Demands for Earthquake Design of Reinforced Concrete Beams

Author: Tae-Sung Eom, Hong-Gun Park, and Sung-Gul Hong | Size: 2 MB | Format: PDF


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To ensure the safety of reinforced concrete structures against
earthquakes, it is necessary to evaluate the safety of each member
against the plastic rotation demand. In this study, a simplified
method was developed to estimate the plastic rotation demand of
the members on the basis of the results of elastic analysis/design.
By using a story subframe model in regular multi-story moment
frames, the relationship between the story-drift demand and the
member plastic rotation demands was derived. In the proposed
method, the effects of various design parameters, including the
building configuration, member stiffness, redistributed moment,
and story-drift ratio, were considered. The proposed method was
applied to the seismic design of a moment frame and a dual system,
and the prediction results were compared to the results of nonlinear
analysis. In addition, the experimental verification to a small-scale
multi-story moment frame was also made.

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