サブストラクチャ仮動的実験のための数値積分法 : サブストラクチャ法を用いた仮動的実験の開発

概要

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As part of a comprehensive study on developing the pseudo dynamic test using substructuring techniques, this paper proposes new integration techniques effective to the substructure pseudo dynamic test. First, conditions that the substructure pseudo dynamic test should fulfill in order to ensure accurate responses were identified. Second, various integration methods were surveyed with respect to their applicability to the substructure pseudo dynamic test, and based on the survey, algorithms using mixed integration methods and the operator-splitting (OS) method were proposed. Stability and accuracy of the algorithm using the OS method was examined analytically, and it was proven that this algorithm is perfectly adaptable to the substructure pseudo dynamic test and can provide unconditionally stable responses. Criteria for estimating the accuracy of this algorithm were also presented. Finally, effectiveness of this algorithm was calibrated for a structure with 20 degrees and a 3 story structure with base isolation devices, and advantages of the proposed algorithm over conventional integration procedures were demonstrated.
1990-11-30