本論文は内閣府戦略的イノベーション創造プログラム（SIP）研究「高精度荷重計測を有する動的試験機を活用した解析法の開発」の高精度荷重計測方法の検証を目的として行われたモックアップ試験の結果を紹介しています。このような巨大プロジェクトに関わる機会が今後あるか定かではありません。論文はこちら
Conventional seismic isolation-bearing testing facilities require moving horizontal platens under high compression. However, these dynamic moving platens inevitably lead to the friction and inertial forces generated by large vertical loads and inertial forces due to the dynamic mass action of the moving platen, which eventually affects the accuracy of the measured force. To solve this problem, the authors have proposed a direct reaction force measurement system (horizontal-vertical separated type) that can exclude the contamination of friction and inertial forces. Measuring pure reaction forces without the contamination of friction forces and inertia is crucial for the reliability of test results. In this paper, prior to the construction of large-scale facility, reduced-size–mockup dynamic tests were conducted using the proposed measurement concept, and its validity and accuracy were discussed. Furthermore, this system was applied to hybrid simulation tests, and the significant improvement of the proposed measurement system was observed.