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形状记忆合金金属橡胶阻尼器防高墩桥梁地震碰撞振动台试验研究

Keywords: 形状记忆合金金属橡胶阻尼器,高墩桥梁,地震碰撞

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Abstract:

为研究形状记忆合金(shapememoryalloy,SMA)金属橡胶减振器防高墩桥梁地震碰撞效能,采用ElCentro、Taft和人造地震动,进行了高墩桥梁钢模型地震碰撞试验和防高墩桥梁钢模型试验(设置SMA金属橡胶阻尼器),详细对比分析了SMA金属橡胶阻尼器控制效能.结果证明,由于SMA金属橡胶具有良好的阻尼性能,且其随变形的增加刚度增大,故SMA金属橡胶阻尼减振器能有效地减轻高墩桥梁地震碰撞效应,起到限位器的作用.

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