摘要
隔震系統在世界各國已受到廣泛的應用，本研究中於是分析隔震結構物於集集大地震、嘉義大地震、以及花蓮大地震歷時下，結構非線性之行為，比較隔震結構與固定基礎結構所受之基礎剪力，以及上部結構之桿件彎曲韌性的差異，並且推論最具隔震效益的抗彎構架樓層高度。
本研究乃採用鋼筋混凝土構架，依據規範耐震設計基本精神，採用簡化設計法設計之，設計樓高為4、6、8、11、14、16、19、21樓。結構物的幾何邊界條件不考慮土壤與結構互制效應與P-Δ效應；力邊界條件採用集集大地震中，南投縣魚池鄉日月潭TCU084測站所測得，東西向的歷時資料，；嘉義大地震中，嘉義市蘭潭國小CHY046測站所測得，東西向的歷時資料；以及花蓮大地震中，花蓮縣秀林國中HWA047測站所測得，東西向的歷時資料。材料特性方面，上部結構採用【洪文岳 2001】所建議，為一完美彈塑性行為的結構桿件，並使用【Wen 1976】遲滯圈模式；隔震支承特性乃使用日本Bridgestone公司所製造的高阻尼橡膠支承。動力分析模式乃依集中質量（Lumped Mass）建立動力方程式，利用Ritz Vector模態分析及FNA（Fast Nonlinear Analysis）來求解，並使用結構設計分析軟體Sap2000執行分析。
分析結果顯示，對基層剪力比 而言，樓高為8樓至14樓之間，為較具隔震效益的樓高；對彎曲韌性比 而言，在樓高為8樓至11樓之間，為較具隔震效益的樓高。

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