Abstract

TENA COLUNGA, Arturo; CANO LICONA, Jesús; LOPEZ BLANCAS, Arturo  and  PEREZ OSORNIO, Miguel Ángel. Revisión y actualización del método simplificado de análisis de estructuras de mampostería de los reglamentos de diseño sísmico de México. Ing. sísm [online]. 2010, n.82, pp.1-34. ISSN 0185-092X.

The simplified method for the seismic analysis (SMSA) and design for low-rise masonry structures with rigid diaphragms allowed by Mexican Building Codes is frequently used in the design practice of Mexico. In this paper, the most relevant aspect of a comprehensive research study devoted to do an in-depth review of the SMSA is presented. This research has allowed updating the SMSA. Based on extensive parametric studies, effective shear area factors (F_AE) originally proposed in the SMSA are modified to improve the estimates of shear forces using this method. New F_AE are proposed for three different performance levels for the structure, as well as their corresponding limit for a computed static torsional eccentricity in plan (e_s). This updated version of the SMSA is already included in the seismic recommendation of the new Manual of Civil Structures (MOC-2008), a model seismic code of Mexico.

Keywords : confined masonry; static eccentricity; torsion; structural performance; simplified method of seismic analysis.