本研究針對高科技廠房結構系統，在簡諧力作用下，驗證簡化分析模式於土壤結構系統頻率域分析之適用性，並探討互制效應與無因次參數變化對結構物反應之影響。研究結果顯示，利用最佳等值模式建立簡化模式，與複數阻抗函數建立實際模式作一比較，可獲得相當一致之反應結果，而結構物反應除受無因次頻率影響之外，基礎埋入比、基礎質量比、樓層質量比與樓層勁度比亦為重要影響因素；當樓層勁度比愈低時，愈能反映結構物振態頻率對共振反應影響，且隨結構樓層數增加，土壤結構動態互制效應愈不明顯。
本研究亦針對高科技廠房結構系統，在無塵室設備運轉之機械振動與垂直地震波作用下，驗證簡化分析模式於土壤結構系統時間域分析之適用性。研究結果顯示，利用最佳等值模式在SAP2000進行簡化分析，及利用SASSI進行實際模式分析，並作一比較，簡化模式除可獲得相當一致之反應外，亦可完整反映實際系統之頻率特性；故最佳等值模式應用於高科技廠房結構系統之振動分析應屬相當可靠。

This research verifies the application of the simplified model to soil-structure interaction (SSI) analysis in the frequency-domain and investigates the effects of SSI behaviors and dimensionless parameters on structural responses for high-tech industrial structures undergoing harmonic forces. The results obtained by using the optimized equivalent model consist with those obtained by the real model with complex impedance functions. In addition to the dimensionless frequency, the foundation embedded ratio, the foundation mass ratio, the story mass ratio, and the story stiffness ratio are also important parameters for structural responses. As the story stiffness ratio decreases, the effects of structure modal frequencies on resonant responses are significant but the SSI effect is not obvious with increasing story numbers.
This research also verifies the application of the simplified model to SSI analysis in the time-domain for high-tech industrial structures undergoing machine loadings and seismic excitations. The responses of the simplified soil-structure system by using SAP2000 program consist with those of the real soil-structure system obtained by SASSI program and also reflect frequency characteristics of the real system. Hence, the application of the optimized equivalent model to the vibration analysis of high-tech industrial structures is considered reliable.

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