Research For Frame Construction Based On The Theory Of Soil-Structure Interaction

The paper based on the theory of soil-structure interaction, adopted finite-element model and Super-Flush program. By comparing the results both with and without considering the influence of interaction, the influence of interaction is researched for force and displacement of superstructure. The author analyzed the dynamic response of 13 structures with 2 different ground conditions and 4 different input ground motions as employed. The results reveal that the interaction affects the distribution of internal forces of structures for some extent, especially for the distribution of column moment on ground floor. The interaction reduces the column moment difference between the top and the bottom. The linear regression analysis for column shear force also proves the columns on ground floor are more sensitive to interaction. For symmetrical structures, the result for axial force also proves the interaction affects the distribution of internal force. Additionally, the author made some practical programs. The procedure of inputting data is simplified and the results can be watched intuitively.