近年結合數值模擬與實體測試之先進複合實驗技術(hybrid testing)，是地震工程實驗研究中方興未艾的發展領域，因其具有減少測試空間與成本之優點，尤其特別適合用以測試先進的隔減震元件等，可提供開發者進行多元且精確之實驗模擬工具。而另一方面根據近年之震災勘災報告顯示，垂直震波易造成重要建物內設備之碰撞而損壞。為保護建物內設備較有效的方式為採用隔震技術，然而常見之隔震系統多為水平向隔震，具垂直向隔震能力之系統相對稀少，此乃因為垂直隔震施作上之困難。垂直隔震系統於靜態時需有足夠勁度以克服受隔震物體之自重；動態時卻必須具有足夠柔度以拉長隔震週期，此動態與靜態時勁度需求有所衝突。為克服上述困難，本文乃提出互制式垂直隔震系統(Inertia-type Vertical Isolation System，簡稱為 IVIS)之構想，並以即時複合實驗技術(real-time hybrid testing，RTHT)評估其減震效能。IVIS主要由一傳統垂直隔震系統外加一配重塊及油壓連桿所組成。於油壓連桿之二端分別裝置受保護之設備及一配重塊，使IVIS系統於靜態時具有較高之等效勁度，以減少靜態沉陷量；並於動態時利用配重端的慣性與設備端產生互制效果以拉長其等效隔震週期，並可避免隔震系統於低頻震波作用下產生共振反應。此外，IVIS並能利用液壓管中液體之黏滯性以消散部分震波能量，達到有效降低設備垂直加速度及隔震位移量之目的。
為測試單軸與雙軸控制模式下即時複合實驗方法應用於IVIS之可行性，本文先推導IVIS各子結構之運動方程式，並以子結構數值模擬方法，成功的模擬單軸與雙軸控制下即時複合實驗之反應。更於單軸位移控制模式下，成功的驗證IVIS即時複合實驗的可行性與準確性。同時，藉由改變IVIS數值子結構系統之參數，更進一步進行IVIS最佳化設計參數之實驗研究。RTHT之實驗結果顯示，當IVIS之配重質量比越大時，IVIS的隔震位移越小，於低頻的近域震波作用下的抗共振效果亦較佳；然而IVIS於高頻震波作用下之最大隔震加速度反應易高於傳統隔震系統，但仍具減震效果，以上RTHT之實驗結果與理論分析結果十分一致，顯示即時複合實驗用於評估及測試IVIS的減震效能是可行的。

In recent years, the method of real-time hybrid testing (RTHT) that combines numerical simulation and physical test has attracted large attention, because it is able to reduce experiment space and cost required by a large-scale seismic test. This test technique is particularly suitable for testing novel seismic isolation and mitigation devices, since it provides the developers a more accurate experimental tool. On the other hand, most of commonly used isolation systems are for horizontal isolation, and applications of vertical isolation systems (VISs) are relatively few. The reason is that because a VIS must be stiff enough to overcome the self-weight of the isolated object in its static state, and meanwhile for isolation efficiency it must be flexible enough to prolong the isolation period in dynamic state. Therefore, there is conflict of stiffness required in static and dynamic states. To overcome the above difficulty, the notion of an Inertia-type Vertical Isolation System (IVIS) is proposed in this study, and the RTHT was used to evaluate its isolation performance. The IVIS, which is composed of a traditional vertical isolation system, a counter-weight and a hydraulic link, has a high effective static stiffness and a low dynamic stiffness due to the existence of the counter-weight. The experimental result of RTHT with uniaxial displacement control mode demonstrates the feasibility and accuracy of the RTHT technology for evaluating the isolation performance of the IVIS.

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