根據建築物耐震設計規範及解說附錄B “懸吊式輕鋼架天花板耐震施工指南”之規定天花板面積大於100 平方公尺以上需施作斜拉線組。然而受限於實驗設備等因素，國內外對於懸吊式明架天花板大面積振動台試驗研究甚少。
為了解懸吊式明架天花板系統的力學行為以及斜拉線對於在室內面積大於100 平方公尺的明架天花板之影響，本研究共分為局部構件靜力試驗、足尺振動台動力試驗、電腦模擬分析等3大部分進行探討。
在局部構件靜力試驗中，本研究針對各構件及其接合處之力學行為進行探討，並於副架接頭側向往復載重試驗中發現其側向剛度隨各試驗階段依次遞減。
在足尺振動台動力試驗中，本研究針對斜拉線、垂直壓桿、模擬燈具燈具質量等變因共設計6組試體進行足尺振動台試驗。並分別輸入白噪音(White Noise) 、頻率1Hz之正弦波以及符合美國非結構構件耐震驗收標準(AC156)之地震振波。以了解各試體的基本振動頻率、明架天花板系統的彈性範圍內之力學行為以及考慮建築物結構放大效應以及設備共振放大效應等因素之動力反應。
經AC156地震振波實驗可知，當天花板系統採用質量較輕之礦纖板且未配置燈具，其單位靜載重為3.88 kgf/m2的條件下，斜拉線及垂直壓桿的對於抵抗水平力的功效並不顯著。當天花板系統採用質量較重之矽酸鈣板且模擬燈具質量，其單位靜載重為7.95 kgf/m2的條件下，觀察到副架接頭變形破壞，且在沒有配置斜拉線及垂直壓桿的試體中發現板材掉落的狀況。
最後，本研究使用MIDAS結構分析軟體建立明架天花板電腦模型，並以局部構件靜力試驗之試驗結果作為模型參數，以足尺振動台動力試驗之輸入紀錄進行動力歷時分析比對電腦模型輸出反應與實驗量測值，藉以驗證電腦模型之合理性。

This study demonstrates how splay wires and compression posts affect suspended ceiling systems whose interior area is over 100 square meters. The main content can be divided into three parts such as static testing on ceiling component, full-scale shaking table experiment, and computer structural analysis. In order to understand the mechanical behavior of suspended ceiling, the experiment performed static testing to confirm the mechanical property of components. The result showed that the lateral shear stiffness of 4-feet Tee at joint was decreasing by each cyclic load.
The full-scale shaking table experiment consisted of 6 different type of specimens and the control variables of specimens are splay wires, compression posts and mass of lighting fixtures. For specimens without lighting fixtures the results demonstrated that no damage was observed. For specimens with lighting fixtures, lateral deformation at joints of 4-feet Tees and 2-feet Tees were observed. Moreover, panels falling were observed on the specimens that weight with lighting fixtures without splay wires.
For the third part of the study, a computer model was built to simulate the shaking table specimen. In this model, all parameters of property consulted on component testing. This study compared the shaking table records and the analysis results from the computer model to validate the result of computer model.

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