本論文主要目的是發展三維有限元素網格來模擬土壤-結構互制的行為。且為了防止震波傳遞到邊界所產生的折射和散射，加入吸收邊界在土壤網格的周圍。利用SIMQKE程式，輸入目標反應譜並產生人工地震。本論文中，所輸入之目標反應譜為『耐震設計規範與解說』所提供之設計反應譜。由於經由設計反應譜所產生出來之人工地震歷時屬地表的振動歷時，所以必須使用SHAKE91程式來計算土壤網格底層之振動歷時，最後將計算出來之振動歷時輸入到土壤網格的底層做地震力分析。按照此流程，便可使用傳統有限元素法來做土壤-結構互制動力分析問題。

This thesis developed a time-domain finite element method to perform the soil-structure interaction analysis. First a traditional finite mesh is generated with absorbing boundary conditions, and then the earthquake time-history accelerations or displacements are applied at the bottom of the soil mesh. The artificial motion is obtained from the well-developed program SIMQKE, which generates statistically independent artificial acceleration time histories and tries to match the target response spectrum. Therefore, the target response spectrum in this thesis is specified the design response spectrum mentioned in Taiwan, Earthquake Resistant Design Code and Illustration of Constructions. Since the artificial motion generated by the design response spectrum is on the ground surface, the motion in the desired depth at the mesh bottom should be estimated by the program SHAKE91, which is used to compute the linear response of the semi-infinite horizontally layered soil deposit overlying a uniform half-space subjected to vertically propagating shear wave. Using the suggested procedure, one can perform the soil-structure interaction analysis as simple as the traditional dynamic finite element analysis.

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