Abstract
In this paper, we propose two simplified methods for foundation input motion of embedded foundation. The first is the least squares method based on the geometrical relationship between each part of the foundation and ground motion. The second is the weighted average method which uses the simplified evaluation for the driving force and impedance function of embedded foundation by combining the impedance function of spread foundation and ground motion. The accuracy and validity of the proposed methods are shown by comparing the results with those obtained from an existing numerical method.
