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題名 | 彈簧防振設備的耐震補強(1)--基本行為試驗與分析,以醫院建築為例=Seismic Retrofit of Spring-Supported Machines (1)--Experimental and Analytical Study on Their Basic Behavior in Hospital Applications |
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作者姓名(中文) | 姚昭智; 吳嘉栩; 張尚文; | 書刊名 | 建築學報 |
卷期 | 24 1998.03[民87.03] |
頁次 | 頁35-50 |
分類號 | 441.571 |
關鍵詞 | 防振機械; 彈簧剛度; 鋼纜剛度; 自振頻率; Base-isolated machines; Spring stiffness; Cable stiffness; Natural frequency; |
語文 | 中文(Chinese) |
中文摘要 | 本文主要針對底部裝有彈簧之防振機械的動力行為進行研究,並對以鋼纜補強的 方法作一基本行為分析。主要研究內容分為:一、對於彈簧側向剛度及鋼纜力學特性的探討, 本文以能量法推導彈簧的縱向剛度與側向剛度,並實際進行試驗驗證其正確性;且以反覆拉 伸試驗分析鋼纜之剛度及其受力變形行為,結果發現鋼纜在應用於補強前應先經過預拉,以 使其剛度穩定。二、利用簡化之數值模型推導防振機械之自振頻率與受地震力後的反應。三、 以模態試驗方式驗證理論分析之正確度,再將鋼纜實際應用於模型試體上,觀察其補強成效。 |
英文摘要 | This paper studies the basic behavior of spring-supported base-isolated machines of their dynamic response in earthquakes. A preliminary investigation is also conducted to a strengthening technique using cables. Major contents include: (1) Lateral stiffness of springs and mechanical behavior of cables. Energy method was used to derive longitudinal and lateral stiffness of springs. Experiments were performed to verify the validity of derived equations. Cyclic tensile tests were conducted to observe cable deformation under loading. It was discovered that cables need to be pre-stretched to obtain a stable stiffness in the elastic range before being put on application. (2) Natural frequencies and earthquake response of base-isolated machines were derived by a simplified mathematical model. (3) Modal experiments were conducted to verify accuracy of the derived vibration equations. Cable was applied on a model to observe the effectiveness of the proposed strengthening technique. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。