Numerical Analysis of the Interaction between Shallow （Square, Circular and Strip） Foundations and Subsoil  

作　　者：L'ubos Hrustinec 

机构地区：[1]Department of Geotechnics, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Bratislava 813 68,Slovakia

出　　处：《Journal of Civil Engineering and Architecture》2013年第7期875-886,共12页土木工程与建筑（英文版）

摘　　要：In this paper, the effects of the stiffness of circular, square and strip foundation structures and bonding effects were analyzed. Presented analysis was oriented on the influence of stiffness system ＂foundation--subsoil＂ and bonds （bi-directional bond and one-directional bond with and without friction）. The results of numerical calculations have proved that the relative stiffness of system ＂foundation--subsoil＂ affect considerably the value and the distribution of contact stresses （vertical normal and shear stresses） in the foundation gap and value of the displacements （settlement, deflection and relative deformations） of foundation. From the numerical point of view, this problem was solved by deformation variant of the FEM （finite element method）. The numerically obtained results were presented in the graphical and tabular forms. Obtained results were qualitative and quantitative compared with one another. From the calculation results it is obvious that relative stiffness of the system ＂foundation structure--subsoil＂ substantially affects distribution of contact stresses in the foundation subsoil and displacements （settlement, deflection and relative deformations, flexibility） of foundation. In the case of flexible foundations, the bond on the contact surfaces must be considered during the calculation. On the other hand, the effects of friction on the contact surface between the foundation and subsoil affect the distribution of contact stresses and deformations only to smaller extent.

关 键 词：Shallow foundations contact stresses displacements stiffness of foundations FEM modeling. 

分 类 号：O241[理学—计算数学] TP393[理学—数学]