Determined of Equivalent Fixed Depth in the 3D Frame

Abstract

The paper presents the results of solving the problem of identifying the equivalent depth of the linkage of the frame -pile structural system. The computational model of the problem is a frame -pile structural system in the form of three-dimensional frame, linear elastic deformation, pile -soil link is replaced by a hard restraint (fixed) with equivalent restraint depth. The problem is solved by the method of penalty function to combine with the finite element method. Examples of numerical calculations show that models, algorithms and calculation programs can be trusted and acceptable.

Using penalty function method in identification stiffness of elastic spring of the underground structure

“…Petersen [14], Davide Balatti [15], Gardner [16] studied the problem of diagnosing structural damage, stiffness linked by the penalty function method. Mousa Rezaee studied damage detection and structural health monitoring with the autoregressive moving average (ARMA) model and fuzzy classification [17]. N.X.Bang and D.V.Thanh [18] determined the Equivalent Fixd Depth of 3D frame, N.X.Bang and N.D.Duan [19] identified the elastic fixed stiffness of the frame structure by the penalty function method.…”