黏滯消能結構之最佳化設計

Abstract

近年來，有關結構減震消能元件的研發與實務應用已有具體成果，相關之設計方法與法規亦陸續修訂完成。本文提出黏滯消能結構之最佳設計法，可由位移或加速度反應效能指標之最小化，決定線性液流阻尼器之最有效配置方式。本法適用於線性液流阻尼器安裝於所有樓層或部分樓層之情況。此外，凡擾動頻譜為已知者，亦可一併納入最佳化設計之控制因素中。經由理論推導、數值驗證與實例分析，證明利用本研究之最佳化設計法所設計之遲滯消能結構具良好之控制效果，相較於依據NEHRP規範所設計者效益更高。

In recent years, advances in the development and practical implementation of energy dissipation devices for earthquake protection of structures have been achieved. Design methods and code specifications in this regard have been devised as a consequence. This thesis proposes an optimal design method for structures implemented with supplemental viscous dampers. The most efficient arrangement of linear fluid dampers may be determined from minimizing the displacement or acceleration response index defined. The proposed optimal design method allows for consideration of placing linear fluid dampers at full or partial floors of the building. Moreover, the given design spectrum of the excitation may be taken into account in the optimization process if desired. Effectiveness of response control based on the proposed optimal design method has been verified via theoretical development and numerical simulations. It has been shown to be more efficient than those designed in accordance with NEHRP provisions.