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Erschienen in:
1987 | OriginalPaper | Buchkapitel
Earthquake Failure Mechanism of Hysteretic Structures with Stress-Strain Based Modeling
verfasst von : Hirokazu Iemura, Yoshikazu Yamada
Erschienen in: Stochastic Approaches in Earthquake Engineering
Verlag: Springer Berlin Heidelberg
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This paper presents the earthquake response and failure mechanism of inelastic reinforced concrete structures with varying axial forces. Material nonlinearity of an RC element is evaluated by using a so-called “fiber model” based on stress-strain relation. Accuracy of constitutive laws is examined from comparison of analytical and experimental moment-curvature relations. Failure mechanism is then examined with a damage index that includes effects of stiffness degradation and accumulated hysteretic energy absorption. A step-by-step integration of the equation of motion is used to calculate earthquake response of a structure. The method gives a very accurate estimation of inelastic earthquake response and deterioration process of RC structures.