消波塊型地震超材料設計及減震效果模擬分析

10.6653/MoCICHE.202308_50(4).0009

王聖翔；蘇于琪

地震超材料 ； 隔減震技術 ； 消波塊 ； 地震工程 ； 暫態分析

土木水利

50卷4期（2023 / 08 / 01）

51 - 57

繁體中文

目前地震工程的隔減震技術多針對單一建築進行加固與消能，例如加強結構的強度與韌性、在底部使用隔震支承、利用消能元件吸收震動能量等。近十年來，以波傳與複合材料角度切入的地震超材料（Seismic Metamaterial, SM）研究在國外逐漸興起，其特色在於地震超材料的減震不需接觸建築物本身，而在社區外圍建立屏障阻隔特定頻段的地震波，此方法對於具有大量老舊建築的台灣特別適用。因此，本文針對地震超材料的設計進行研究。文獻上現有的地震超材料多使用特殊的幾何與材料，常面臨昂貴成本導致實際應用的困難。本研究以常見的土木材料－混凝土、消波塊體、圓板與半球為元素，組合出新穎的消波塊型地震超材料，透過頻散分析與全域暫態模擬，驗證此設計對地震表面波的衰減效果。

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