含被動調諧質量阻尼器結構之耐震行為研究

Seismic Behavior of Structures with Passive Tuned Mass Damper

王秋文(Chiu-Wen Wang)

指導教授 ： 張國鎮

國立臺灣大學/工學院/土木工程學研究所/碩士(2007年)

https://doi.org/10.6342/NTU.2007.10223

摘要

對於被動調諧質量阻尼器裝設於建築物的相關研究，一直以控制風力振動為主，或是控制中小度地震力為主，鮮少討論建築物承受強震後進入非線性行為時，PTMD對結構物的效益為何，且裝設PTMD的相關實驗也很少有文獻提出。因此，為了瞭解被動調諧質量阻尼器在強震下的行為，且確立PTMD是否可作為抵抗地震的良好機構，本文的重點著重於裝設PTMD鋼構架之震動台實驗以瞭解加裝PTMD建築物於地震力下實際的行為，也經由數值模擬比對，確立數值參數的正確性，並更進一步利用數值模擬來討論加裝PTMD建築物於不同大小之地震力下，結構物保持彈性與降伏後PTMD的效益，以便對PTMD能有更進一步的瞭解。
此外，為了瞭解裝設PTMD建築物於不同地震反應下的耐震能力，也將研究相關耐震的評估方法。本文提出以一等效線性系統模擬非線性系統為基礎之結構裝設被動調諧質量阻尼器之耐震性能評估方法。其一是設定結構頂層最大相對位移為目標位移，利用等效線性系統找出目標位移在特定地震歷時下所對應的最大地表加速度。其二是在特定地震歷時其最大地表加速度下求出結構之頂層最大相對位移。

關鍵字

PTMD ； 耐震性能評估 ； 替代結構法 ； 非線性靜力側推分析 ； 離頻效應

並列摘要

This thesis reviews the passive tuned mass damper design methods and seismic performance under structures yield. The results of shaking table test which is a 3 story steel frame equipped bilinear-elastic tuned mass damper are proposed. The EL Centro and TCU129 excitations are used for the test. Summarizing the results of a parametric study performed to understand some important characteristics of passive tuned mass damper. The effect of structures equipped three different passive tuned mass damper while prime structures before and after yield. The contribution of the equivalent damping ratio which is from the linear optimal passive tuned mass damper for a SDOF structure before and after prime structure yield. Using the substitute structure approach, the evaluation of seismic performance of structures with passive tuned mass damper is proposed, and the results are verified by dynamic inelastic time history analyses.

並列關鍵字

PTMD ； Pushover

參考文獻

1. Masato Abe’ (1996) ,“Tuned Mass Dampers for Structures with Bilinear Hysteresis,”Journal of Engineering Mechanics, Vol. 122, No. 8, 797~800.

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