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The Peffect is one of the factors that cause an increase in the seismic response of structures. It is important to evaluate this effect for verifying the structural safety during the strong earthquakes. Although the Peffect has been considered at the design of high-rise buildings nearly, only the influence of the Peffect in terms of increasing the maximum plastic deformation has been confirmed. Therefore, in order to evaluate the seismic performance adequately, it is necessary to clarify the influence of the Peffect based on the hysteretic characteristics of reinforced concrete structures. This paper focuses on the residual deformation of reinforced concrete structures, and proposes an evaluation method that considers the P– effect. During the evaluation of residual deformation with the P– effect, it is necessary to consider not only the plastic deformation but also the maximum response, because of the hysteretic characteristics. The proposed method predicts the maximum residual deformation by using the results of time history analysis.

EVALUATION OF RESIDUAL DEFORMATION CONSIDERING P-&Delta; EFFECT FOR HIGH-RISE REINFORCED CONCRETE STRUCTURES

EVALUATION OF RESIDUAL DEFORMATION CONSIDERING P-Δ EFFECT FOR HIGH-RISE REINFORCED CONCRETE STRUCTURES