Translational and rotational movement following performance of 40-year-old bearing plate bearings

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  • 経年40年のベアリングプレート支承 (BP-A支承) の水平・回転変形追随性能実験
  • ケイネン 40ネン ノ ベアリングプレートシショウ(BP-Aシショウ)ノ スイヘイ ・ カイテン ヘンケイ ツイズイ セイノウ ジッケン

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<p>In 1960s, bearing plate bearings had been developed as low friction and low height bearings for bridges. Among them, BP-A bearings were widely used in railway and highway bridges, but due to severe environmental conditions for a long period of time, they are deteriorated and sometimes causes serious problem of superstructures. In this study, horizontal and rotational cyclic loading tests of 40-years old BP-A bearings are conducted to evaluate the movement following performance. Especially because movement of the bearing plate is directly measured, the potential deterioration factors can be clarified.</p>

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