台灣位於歐亞大陸板塊與菲律賓海板塊的交界處，近年來受到許多地震的影響，造成建築物的倒塌，進而影響人民的安全。隨著隔震技術的興起，利用安裝隔震墊於上部結構與基礎之間，藉此調整結構物之振動週期，以減少上傳至上部結構的地震力，進而降低結構物的破壞以及保護人員的安危。透過學者的研究，國內外已有相關隔減震技術規範，以提供工程師做設計使用。
盤式支承經多年研究發展後，已漸漸成為國內外橋梁廣泛使用的金屬類支承，可承受較大的垂直及水平載重，有較低的摩擦係數及較大的容許位移，本文所使用之盤式支承為雙向活動型，摩擦係數是主要的參數之一，然而，地震來臨時，地震力需超過最大靜摩擦力才能啟動隔震裝置，但在傳統規範標準測試中，由於來回加載的方式，不易測量最大靜摩擦力，多為動摩擦力，較難預估啟動地震力，故本文針對此部分進行實驗。
本文實驗使用成功大學歸仁校區複合性災害隔震實驗平台，採取現地實驗的方式，利用手動油壓千斤頂進行靜力側推，詳細剖析每次側推過程中的盤式支承啟動瞬間的側推力與後續的行為，進而觀察並識別各階段的摩擦係數，得以補充規範動態實驗中無法分析速度極小時的反應，於工程實務上可提供評估隔震裝置啟動地震力時的摩擦係數，藉此精進隔震結構相關設計技術。

Pot bearings have gradually been adopted as metal isolators widely used in bridges. It can bear larger vertical and horizontal loads and has a lower coefficient of friction and a larger allowable displacement. The pot bearings in this study are two-way movable types, and the coefficient of friction is one of the main-parameters.

When an earthquake comes, the inertia force of the upper structure must exceed the maximum static friction force to activate the seismic isolation system. It is not feasible to measure the maximum static friction force in the traditional full-scale performance tests or component tests regulated by the code. It is also difficult to estimate the activation force of friction-type isolators in laboratory tests. Therefore, the maximum static coefficient of friction identified through the experiments in field tests in this study can provide an estimation of the activation seismic force.

The Fire-Earthquake Compound Disasters Testing Facility (FECDTF) built by the Architecture and Building Research Institute (ABRI) located in the Kuei-Jen campus of the National Cheng Kung University is used as the target isolated specimen. The hydraulic jacks are used to provide the static lateral forces to push the platform of the TDCDTF and the relative displacements are recorded to identify the coefficient of frictions at each stage of loading. The activation behavior of pot bearings is investigated and compared to evaluate the traditional hysteresis characteristics in detail. The maximum static friction coefficient identified through this study can provide a good estimation for practical applications.

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