A Comparative Study of Seismic Provisions between the International Building Code 2003 and Mexico's Manual of Civil Works 1993

Abstract

This study focuses on the differences and similarities between the seismic provisions of the International Building Code 2003 (IBC 2003) and Mexico's Manual of Civil Works for Seismic Design (MOC-93). A six-story special reinforced concrete moment frame building was chosen to explore how the static force procedures of both codes differed. The sample location of this building was the San Diego/Tijuana border region. A total of four random soil shear wave velocities were chosen to identify the necessary IBC 2003 soil site classes and MOC-93 soil types. Inelastic design response spectra were established based on the 4 soil shear wave velocities. When the results were compared, several conclusions were evident. The IBC 2003 design response spectra may be more accurate for the studied region of San Diego, California, USA and Tijuana, Baja California, based on the probabilistic data of the region. The MOC-93 design response spectra, which include longer periods and higher seismic coefficients in most cases, are based on deterministic and probabilistic data that is heavily influenced by subduction source earthquakes that occur along Mexico's central Pacific Coast.

Keywords

International Building Code 2003 equivalent lateral force procedure design response spectrum seismic use group seismic design category Mexico's manual of civil works 1993

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