本文探討結構物在簡諧地震波作用下，以頻率域反應函數發展適用於建築-土壤互制系統之結構損傷偵測法，提出未正規化損傷指標與正規化損傷指標，以判斷損傷之樓層位置。研究結果顯示正規化損傷指標判斷損傷樓層準確度優於未正規化損傷指標，又以正規化損傷指標中的正規化殘留層間變位角及正規化殘留曲率為最佳，其針對未含雜訊系統樓層損傷之判斷準確度可達100%。本研究亦發現未含雜訊系統下，結構週期、土壤剪力波速及結構樓層數對正規化殘留層間變位角及正規化殘留曲率判斷損傷樓層準確度皆無影響。
本文另探討建築物受環境雜訊之影響，以驗證損傷指標之可行性。研究結果顯示以正規化殘留曲率指標判斷損傷樓層準確度最高且最穩定，結構損傷在底層時，損傷指標受雜訊影響小，而結構損傷在中高樓層時，損傷指標判斷損傷樓層準確度受雜訊影響則較大，因此，本文建議進行建築結構損傷偵測時，可使用正規化殘留曲率指標，且提高分析頻率可提升損傷指標判斷損傷樓層準確度。

This study develops a new method to detect structural damage for building-soil systems subjected to harmonic waves by using frequency-response functions. Non-normalized and normalized damage indicators are proposed to predict the damaged floor level in a building structure. The analyzed results show that the normalized indicators are much better than the non-normalized indicators to predict accurately the damaged floor level. The normalized residual story drift ratio (NSDR) and the normalized residual curvature (NRC) are the best indicators with a predictive accuracy rate 100% for the structure response without noise. It is also found that the changes of fundamental periods, shear-wave velocities, and building stories have no influences on the predictive accuracies of the two indicators, NSDR and NRC, for the structural response without noise.
In addition, this study also applies the proposed damage indicators to the building structure system interfered by environmental noise. The analyzed results show that NRC is the most accurate and stable indicator to predict the damaged floor level. As the base floor is damaged, the predictive accuracies of proposed indicators are affected by noise insignificantly. In contrast, as the middle or high floor is damaged, the predictive accuracies are considerably influenced by the noise. Therefore, this study suggests that the indicator NRC be used to detect damage location for building structures. Moreover, increasing the analysis frequency may improve the predictive accuracies of the indicators.

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