我國耐震規範中設計強度與韌性比間關連性研究

我國之耐震設計規範主要以強度設計為主，雖已將韌性之觀念納入條文中，但並未針對台灣區域之特殊性予以考慮，且只顯示設計強度折減係數與韌性容量有關，但韌性容量與韌性比需求之關連性卻無探討。本文使用擬單自由度系統之非線性分析程式，以921集集大地震之強震資料繪製台灣地區非彈性韌性設計反應譜，在規範的強度比定義下，利用最佳化趨近的方法，以求取設計強度與韌性比需求間之關係。此外，本文依功能設計法中所要求之功能性水準，對各危害度下所需之韌性需求加以討論，並比較不同韌性容量於堅硬、普通、軟弱地盤及台北盆地等不同地盤特性下，其間之關連性與影響。希望能找出規範中定義之韌性容量與實際建築物韌性需求間之關係，以提出一套符合國內地盤特性之韌性需求。

關鍵字

功能設計法；危害度；非彈性韌性設計反應譜

並列摘要

The current seismic design code in Taiwan are laid out through a strength demand requirement. The code has contained ductility demand but doesn’t consider the local effects in Taiwan. The strength reduction coefficient is considerd the relations to the ductility capacity, but it is not clearly about the relationship between the ductility capacity and the ductility demand. In this study, we hope to get the inelastic uctility response spectra, based on the strong motion data in Chi-Chi earthquake, by using the nonlinear analysis of SDOF system. Finally, we use the method of optimal to get the relation between design strength and ductility demand. Besides, this study also considers the ductility demand in different hazards according to the Performance-based design of building. In order to understand the relationship and the influence, we compare the ductility demand at hard soil sites, intermediate soil sites, soft soil sites and Taipei basin region. In order to get ductility demand that correspond to the sites character in Taiwan, we hope to conclude the relation between the ductility capacity defined in the code and the ductility demand of the building

並列關鍵字

Inelastic ductility response spectra ； Performance-based method ； Hazard

參考文獻

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國際替代計量

我國耐震規範中設計強度與韌性比間關連性研究

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