Influence of an adjacent structure on the horizontal and torsional input motion of an embedded foundation

Abstract

Influence of an adjacent structure on both the horizontal and torsional input motion of an embedded foundation is discussed in this article. Four important system parameters, namely, the distance between the adjacent structure and embedded foundation, the natural frequency of the adjacent structure, the shape of the adjacent structure, and the arrangement angle of the adjacent structure are considered to investigate both the horizontal and torsional input motion of an embedded foundation influenced by an adjacent structure. It is found that the values of the horizontal input motion of the embedded foundation can be significantly influenced around the natural frequency of the adjacent structure. The torsional input motion of the embedded foundation can be generated due to the presence of the adjacent structure. Response of an existing structure influenced by the adjacent structure is then investigated. The results show that the response of the existing structure can be affected by the adjacent structure. When the horizontal natural frequency of the adjacent structure coincides with the torsional natural frequency of the existing structure, the torsional dynamic response of the existing structure can be affected significantly.