形状や拘束条件に着目した緩衝ゴムの緩衝特性に関する基礎実験

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  • Fundamental experiment of shape and confining effect on rubber pieces' cushioning characteristics
  • ケイジョウ ヤ コウソク ジョウケン ニ チャクモク シタ カンショウ ゴム ノ カンショウ トクセイ ニ カンスル キソ ジッケン

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The specifications for highway bridges require cushioning material to be installed on bridge restrainers to reduce seismic impact force; although no clear standard design method of cushioning material is provided in the current specification. Thus, it seems to have a potential for making the design of bridge restrainers more appropriate if the evaluation of cushioning effect could be more quantitatively. Therefore, weight-drop tests were conducted on cushioning rubber pieces to get fundamental data on cushioning characteristics. In this test, it was focused on rubber pieces' shape, hardness and confining conditions. It was obtained that cushioning characteristics would be significantly affected by the rubber pieces' shape and confining conditions.

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