Mexico  [ Back to Seismic Design Code Index ]   [ Back to Country Index ]
Code Name
Issued by

Mexico City seismic resistant design provision : issued in 1942, revised in 1957, 1976, 1985, 1987 and 1993.
The latest seismic code is “Reglamento de Construcciones para el Distrito Federal [Construction Regulations for the Federal District (1993)]” and “Normas Tecnicas Complementarias para Diseno por Sismo [Auxiliary Technical Notes for Seismic Design (1987)]”.

These codes excluding seismic coefficients and spectral accelerations are adopted in other states of Mexico as seismic codes.

Horizontal Base Shear

F : Base shear force (Fig. 2)
W : Total weight of the building
a  : design response spectrum (Fig. 1)

          T : fundamental period of vibration of the building
: seismic coefficient form table 1
a0, Ta , Tb &
γ : values from table 2
: the value calculated from the followings


         Q : factor depends on the type and characteristics of the structure with 1.0 to 4.0