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  • 學位論文

安裝液流阻尼器鋼筋混凝土建築物之耐震能力探討

A Study of the Seismic Capacity of Reinforced Concrete Buildings with Supplemental Fluid Dampers

指導教授 : 林炳昌
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摘要


摘要 液流阻尼器作為消能設施在台灣已漸被使用,甚至應用於老舊建築物的補強,但是實務應用時,常見不適宜的使用,本研究乃嚐試探討如何評估以液流阻尼器作為補強方式的老舊建物之耐震能力,並以兩棟實際案例說明其安裝位置合宜性的重要。本研究首先將依據國家地震研究中心(NCREE)針對非韌性構材之非線性塑鉸之設定加以定義,之後利用SAP2000以非線性靜力側推分析推估建築物之耐震能力,另外再依據建築物耐震設計規範規定之要求進行歷時反應分析,每個案例以二個水平地震紀錄,進行非線性歷時反應分析,其結果與非線性靜力側推分析結果比較之探討用。 本研究以非線性側推分析結果為依據,比較利用時間歷時分析找出安裝液流阻尼器鋼筋混凝土建築物之耐震能力及破壞機制,藉由時間歷時分析所得的結果與非線性側推分析做探討,由研究結果顯示,阻尼裝置若安裝於磚牆旁,則阻尼裝置還未發揮其效果時,此磚牆就已經崩壞,顯示補強分析時忽略磚牆存在之事實並不合宜。

並列摘要


Abstract Fluid damper has been used as energy dissipation devices and the retrofit of old buildings in Taiwan, but sometime misuse when practice application. This research discusses the seismic evaluation of nonductile concrete buildings with fluid damper in retrofit, and show two cases to illustrate the damper position of the suitability. In this research. First, according to the definition of nonlinear plastic properties of non-ductile members was referred to National Center for Research on Earthquake Engineering (NCREE), and use the pushover analysis in SAP 2000, to estimate the seismic ability of structures. Second, according the request of seismic design code, It proceed the nonlinear time history analysis, and compare the results. This research was according to the result of pushover analysis, compared to the time history analysis to find the seismic ability and destruction mechanism of the reinforced concrete structures with fluid damper. According to the research, when the fluid damper set up near the brick wall, the brick wall will collapse first and damper were not work yet! This shows inaptness of ignore the brick wall in the analysis.

參考文獻


10. 黃德治,「實體鋼筋混凝土建築物之崩塌實驗模擬分析與驗證」,碩士論文,中原大學,台灣,2007。
11. 林炳昌、曾立明、王仁佐,「利用ETABS推覆分析之RC建築物耐震能力評估法」,技師月刊,第51期,(2009.1)。
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25. 內政部建築研究所,「鋼筋混凝土建築物耐震能力評估法及推廣專題報告」,民國88年12月。
4. Applied Technology Council(ATC), Seismic Evaluation and Retrofit of Concrete Buildings, Vol.1, ATC 40, Redwood City, CA, 1996.

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