A parametric study devoted to assess the limiting value for the static eccentricity (es) for the application of the
simplified method for seismic analysis (SMSA) of bearing-wall confined masonry structures of Mexican Building Codes
is presented. Based upon the results of a comprehensive parametric study, limiting values for es for the use of the SMSA
are proposed for three different performance levels for the structure: (a) elastic response, (b) completely nonlinear
(cracked) response of all walls along the building height and, (c) partially nonlinear (cracked) response along the height.
The criterion used to propose limiting values for es was that the underestimation of shear forces predicted for the first
story walls with the SMSA was within reasonable limits with respect to those shear forces computed with a rigorous
3D static analysis using an equivalent linearization for the nonlinear (cracked) response of the walls, in order to insure
reasonably safe designs of such structures.